May 6, 2003
Abbreviations:
- AD: Associate Director
- CIECB: CIE Central Bureau
- CIEBA: CIE Board of Administration
- CM: Country Member
- D2: Division 2 (D1, D4, D8, likewise)
- DD: Division Director
- ML: Member List
- NC: National Committee
- TC: Technical Committee
- TCC: Technical Committee Chair
- TR: Terms of Reference
- ST: Status
- WG: Working Group
Attendees:
Jean Bastie
BNM-INM/CNM, France
Peter Bodrogi
Univ. Veszprém, Hungary
Peter
Blattner
METAS, Switzerland
Dennis Couzin
Avery Dennison, USA
Ellen Carter
Color Res. & Appl., USA
Antonio
Corrons
IFA, Spain
George Eppeldauer NIST,
USA
Irena Fryc
Bialostocka University of Technology, Poland
David Gibbs
NPL, UK
Teresa
Goodman
NPL, UK (D2 Director)
Norbert
Johnson
3M, USA (D2 AD)
Hoon Kim
KNU, Korea
Kohtaro Kohmoto
JELMA, Japan
Gabor Kutas
Univ. Veszpém, Hungary
Balázs
Kránicz
Univ. Veszprém, Hungary
Jin Sang
Kwon
KATS, Korea
Hans Allan
Löfberg Univ.
Gävle, Sweden (CIE President)
Janos Makai
CIE CB
Rita Mátrai
Univ. Veszprém, Hungary
John Moore
UK (D2 Editor)
Cameron Miller
NIST, USA
Yoshi Ohno
NIST, USA (D2 Secretary)
Allan
Ottosson
Univ. Gavle, Sweden
Tom Ondró
Univ. Veszprém, Hungary
Jerzy
Pietrzykowski Central
Office of Measures, Poland
Etienne Pierson
Laborelec, Belgium
Alan Robertson*
NRC, Canada
Maria Luisa
Rastello IEN,
Italy
Gerhand Roesler
GretagMacbeth, Germany
H. J.
Schmidt-Clausen Tech. Univ. Darmstadt,
Germany
Farhad Samadov
UME, Turkey
Ichiro Saito
NMIJ/AIST, Japan
Guy
Vandermeersch Laborelec,
Belgium (D2 AD)
Pierce Webb
Eastman Kodak-retired, USA
Total 35 persons
from 15 countries, including 13 country members.
Underlines indicate country members. * indicates substitutes for country member.
Agenda
of 2002 Division 2 meeting (Attachment 1)
List
of the country members, list of TCs and Reporterships
July 2002 Division 2 Activity Report
Division
Director, Teresa Goodman, opened the meeting at 8:30 a.m., and
welcomed everyone present. All
the participants introduced themselves.
Secretary
received regrets from the following persons:
Carl Andersen
(USA)
Anton Bouman
(Netherlands C/M)
John
Clare (New Zealand C/M)
Peter Clarke (UK)
Jeanne-Marie
Coutin (France)
Gyula Dezsi
(Hungary C/M)
Jim Gardner
(Australia C/M)
K. Ganesha
(India)
Alan
Kravetz (USA)
Hideki Kondo
(Japan)
Larry Leetzow
(USA)
Ian Lewin (USA)
Michael Matus
(Austria C/M)
Giorgio Moscati
(Brazil C/M)
Cal McCamy (USA)
Kathleen Muray
(USA)
J Rennilson (USA)
Danny Rich (USA)
Georg Sauter
(Germany C/M)
J Scarangello
(USA)
Dave Sliney (USA)
Klaus Witt
(Germany)
Gan Xe
(Singapore)
Gan Rong Ye
(China)
Joanne Zwinkels
(Canada C/M)
The
agenda of 2002 Division 2 meeting, which was distributed to attendees
and also via e-mail circular prior to the meeting, was approved with
no changes.
The minutes of the
2001 D2 meeting at NIST, Gaithersburg, USA, which were distributed
via e-mail circular and on the website, were approved with no
changes.
The last CIE Board
meeting was held in June 2002 in Vienna.
A large part of the meeting was devoted to discussions
relating to preparations for the quadrennial meeting in San Diego.
There are several changes planned:
a) There will be no
presented poster sessions; instead, there will be more presented
papers, each slightly shorter in length than at the last session (10
min presentation + 5 min discussion).
b) During the poster
sessions, there will be designated times when authors must be present
at the poster to answer questions. (If the author is not present, the
paper will not be published in proceedings).
c) Authors of
presented papers will also be offered the opportunity to display a
poster (to allow those who missed the presentation due to parallel
sessions).
d) Any papers not
actually presented will not be published in the proceedings.
e) All the abstracts
received have been reviewed and allocated as either presented papers
or posters. About 40 % are presented
papers (much higher than before).
f) Format of proceedings: All delegates will get books of extended abstracts
(page limit 4 pages for both presented papers and poster papers). Papers that exceed 4 pages
will be cut off to 4 page limits.
After the meeting, official proceedings in CD ROM format only,
will be produced. These will include full papers (with no page limits
and the ability to include color figures if required), together with
workshop reports and Divisional reports. Final full version papers should be
submitted at the Conference. If
no full paper is submitted, the extended abstract will be included in
the CD ROM. Refereeing of papers
was discussed, but was not done this time (will occur for future
Sessions).
Other issues raised during the Board meeting:
(i) The benefits of the new
classes of supportive membership have been improved significantly. New publicity material will
be published later in the year.
(ii)
A trial of selling publications on the web has started in
South Africa (Franz Hengstberger).
(iii)
The Board are still keen that Divisions should consider
publication of CIE handbooks on particular topics; this was on the
Agenda for discussion later in the D2 meeting.
(iv)
Education: there are 42 active members in Dr. Janos
Schanda’s email group, and this initiative appears to be working
well. Div. 7 will not be
reactivated.
(v)
CIE CB is working with CEN to smooth the relationship with
CEN.
(vi)
The establishment of an introductory course on optical
radiation is being considered. This would be a joint initiative
between D2 and D6 and would be held at the Central Bureau.
(vii)
CIE is reducing the prices of publications. Prices
(publication handed from CIE CB to national committees) are reduced
by 50 % (as a trial, to see whether the number of publications
sold is directly influenced by their cost).
The prices at which national committees sell publications are
up to national committees.
a) Div. 2 now has 35 country members, the same
number as last year. We
have a new member from Korea. Slovak
Republic was removed from membership (a notice from CIE CB received
in March 2002). The country representatives
of Bulgaria, Denmark, and Finland have changed.
b) The Secretary produced and circulated the
minutes of the 2001 D2 meeting (NIST, Gaithersburg, USA) by email and
on the website in June 2001. The
last Activity Report was produced and circulated on the website in
July 2002. It was also mailed to a few people who have no
email access.
c) The D2 mailing list
now has 152 persons (last year - 144). Almost all communications in
Division 2 are done by email and through the website. We have now
five persons who do not have email accounts, or with whom email
communication has been lost, and these are contacted by fax or mail
for important communications only.
d) Div.2
Website:The server for the D2 website has been changed within NIST,
and the URL is changed to <cie2.nist.gov>.
Several items have been added following the decisions at the
last D2 meeting and other improvements:
- Template of TC
draft document (prepared by CIE CB) - posted on the TC list page.
- TC drafts posted: TC2-24, TC2-25, TC2-37, TC2-40, TC2-42, TC2-46,
TC2-47, TC2-48, TC2-49. Password protection installed - one
global password for all TC documents (distributed to D2 officers and
all TC chairs), and individual password for each TC (to be
distributed to each TC members).Passwords are assigned only to the
TCs posting documents.Not all TC drafts have been posted; TCCs who
haven't placed drafts on the website are recommended to do so.
- What's NEW area (listing new items recently added) has been
added.
<Discussion>
The
Editor raised a concern that, when downloading TC drafts from the
website, some fonts often appear differently.
The Secretary answered that we try to avoid such font problems
by using PDF format, but doc files are also used to allow comments to
be entered, despite the fact that this
may cause problems when using special characters and equations. The
Secretary requests those who encounter such problems with electronic
documents to contact him.
e) Email
Reflectors:
-We now have four reflectors being used: CIE-D2@nist.gov,
CIE2-45@nist.gov, CIE2-46@nist.gov, and CIE2-48@nist.gov. More email
reflectors can be created on a by request basis.
-A non-subscriber block has been set for all the reflectors, to avoid
junk mails being circulated. If a subscriber's email address changes,
he/she cannot post messages. The Secretary must be contacted in order
to register new email addresses of subscribers.
6. Editor’s report (J. Moore)
The
report from TC2-36 was published in July 2001 as CIE 54.2. The document has many color
figures, which is a first for a CIE publication.
TC2-04 Use of
tungsten filament lamps as secondary standard sources
The ballot process
has been finished, and the document is ready for publication. Only
one minor point on quality of photographic reproduction needs to be
fixed.
TC2-22
Intercomparison of Measurements on HPS lamps
The document went
through Division ballot, and there was one rejection due to the fact
that the results had not been subjected to an uncertainty evaluation
carried out in accordance with GUM (1993) recommendations and also
because the laboratories are identified. The comparison was carried
out in 1991-1992. Following some discussion, it was suggested that
the results should be presented in an anonymous format, and this
suggested was endorsed by those present. The Editor will make this
change, and it is hoped this will resolve the negative vote.
TC2-35 CIE Standard for V(l) and V’(l)
See TC report.
No new reports have
been received since the last D2 Meeting in Gaithersburg.
The Editor
indicated that he plans to resign from the responsibility of Editor
at the San Diego meeting.
7. Progress reports from Technical
Committees, Reporters, and Liaison persons
7.1 Technical Committees
Progress
reports on the TCs were given by ADs and TCCs who were present at the
meeting.
TCs under AD
Sauter: TCs 2-04, 16, 29, 37, 40, 43, 45, 46, 47, 48 (As AD Sauter
was not present, reports were given by DD and TCCs.)
TCs under AD
Vandermeersch: TCs 2-23, 24, 49, 50, 52.
TCs under AD
Johnson: TCs 2- 17, 19, 25, 28, 30, 32, 35, 39, 42, 44, 51, 53, 54.
TC2-04
Secondary standard sources
Chair: J. Moore (UK)
AD: Sauter
ML: Bandyopadhyay (India), Corrons (Spain), Gaertner
(Canada), Jiang (China), Low (USA), Metzdorf (Germany), Nishi
(Japan), Schanda (Hungary)
TR: Produce a technical report on the selection and
operation of stable secondary standard sources.
ST: Covered in the
Editor’s report. Ballot process has been finished, and the
document is ready for publication. Only one minor point on quality of
photographic reproduction needs to be fixed.
TC2-16 Characterization of the performance of tristimulus
colorimeters
Chair: M. L. Rastello (Italy)
AD: Sauter
ML: Denner (South Africa), Goodman (UK), Hengstberger (South
Africa), Moore (UK), Muray (USA), Ohno (USA), Rattunde (Germany),
Robertson (Canada), Sauter (Germany), Schanda (Hungary), Steindl
(Austria), Terstiege (Germany)
TR: To produce a
report recommending methods for assessing the performance of
tristimulus colorimeter heads for measuring chromaticity coordinates.
ST: Document is
near completion. At the last meeting in 2001, comments on the
6th draft were received and an editorial board was formed
within the TC to prepare the final version for TC ballot.
The TCC hopes to finish the document at San Diego meeting.
TC2-17 Recommendation for integrated irradiance and
spectral distribution of simulated solar radiation
Chair: D. Kockott (Germany)
AD: Johnson
ML: Aydinli (Germany), Goodman (UK), Ignatiev (Russia), Justus
(USA), Kaase (Germany), Kasten (Germany), Kok (South Africa),
Wilkinson (Australia), Zerlaut (USA)
TR: Revise and
update CIE Publication No.20 (1972)
ST: The TC has not been active for several years. DD
Goodman reported that she was able to contact the TCC recently and
heard that Kockott is retired and is not continuing this TC. He is
contacting an expert in the field who is expected to take over the
chairmanship. DD suggested that we allow a little more time and
contact him again to obtain the new chairman’s name.
(Later on, the TCC informed the DD that Gene Zerlaut
(USA) has agreed to take over the chairmanship.
A proposal for the change of the TCC was made to the CIE Board
and was approved, following email ballot.)
TC2-19 Measurement of the Spectral Coefficient of
Retroreflection
Chair: N. Johnson (USA)
AD: Johnson
ML: Arens (USA), Brekke (Norway), Fisher (USA), Hsia
(USA), Hubert (France), Kurioka (Japan), Price (UK), Rendu
(France), Rennilson (USA), Richey (Germany), Schreiber (Germany),
Sugiyama (Japan), Terstiege (Germany - now deceased), Vandermeersch
(Belgium)
TR: Identify the critical measurement parameters, tolerances,
and requirements for, and conduct an international intercomparison
of, the spectral coefficient of retroreflection.
ST: Report given by AD
Johnson. The
intercomparison is complete and the report now needs only final
editing. The report will be sent to Editor Moore and is
expected to be sent for TC ballot shortly.
TC2-23 Photometry of Street-Lighting Luminaires.
Chair: G. Vandermeersch (Belgium)
AD: Vandermeersch
ML: Arens (US), Blaser (Switzerland), Blochouse
(Belgium), Claassens (NL), Corrons (Spain), Price (UK), Rattunde
(Germany), Rossi (Italy), Simons (UK), Sorensen (Denmark)
- to be updated
TR: Prepare a technical report on the photometry of street
lighting luminaires
ST: Report given by the
TCC. The scheduled TC meeting in Veszprem was cancelled due to lack
of members, but instead an ad-hoc meeting has been arranged for the
afternoon of Aug. 27, in conjunction with the meeting of 2-52. The
document is to provide industrial laboratories with the information
they need in order to
carry out the photometric measurements of street-lighting luminaires
required in documents published by D4. CIE 140 already
addresses many issues related to measurement. TCC needs an exchange
of ideas with TC members about what to add on street-lighting
luminaires.
TC2-24 Users guide for the selection of illuminance and
luminance meters
Chair: K. Ganesha (India)
AD: Vandermeersch
ML: Andor (Hungary), Arens (USA), Austin (USA), Bastie
(France), Chang (Taiwan), Dibbern (Germany), Eppeldauer (USA),
Gardner (Australia), Goodman (UK), Hengstberger (S. Africa), Moore
(UK), Muray (USA), Ohno (USA), Rennilson (USA), Ritzol (USA), Sauter
(Germany), Sojourner (USA)
TR: Prepare a
user’s guide for the selection and use of illuminance and
luminance meters.
ST: AD Vandermeersch
reported. The TCC sent
apologies for not being present, saying that
the draft is now completed but there are some cosine response
problems to discuss. The
TCC planned to have a virtual meeting to distribute the draft, but
this has not yet taken place.
TC2-25 Calibration
Methods and Photoluminescent Standard for Total Radiance Factor
Measurement
Chair: J. Zwinkels (Canada)
AD: Johnson
ML: Bristow (Sweden),
Erb (Germany), Leland (USA), McCamy (USA), Nayatani (Japan), Puebla
(Germany), Racz (Hungary), Simon (USA), Witt (Germany), Verrill (UK)
TR: Prepare a CIE report on methods for measurement of
total radiance factors of photoluminescent materials. Recommendations for realizing and calibrating
photoluminescent standards by the one and two-monochromator methods
will be included.
ST: A written report
was received from the TCC: The TC last met in May 2001 in
Gaithersburg, MD in conjunction with the CORM annual meeting.
The meeting was attended by seven TC members and ten
observers. A new member from the UK (P.
Clarke of NPL) has replaced John Verrill (deceased). The ninth draft
of the TC report was discussed.
Input was received on: properties and availability of
additional fluorescent material standards, additional details of NPL
spectrofluorimeter, and editorial changes to list of references.
There was considerable discussion regarding terminology and
notation; in particular, the need to consistently distinguish between
fixed and variable measurement parameters.
It was proposed to include an Appendix in this TC report,
containing a cross-reference of notation in current use for
quantities relevant to fluorescence measurements (ASTM, F. Clarke and
K. Mielenz). This proposal was circulated to TC members for comment
and approved. This
stimulated the TCC to carefully review the document to ensure that
notation was clearly defined and consistently implemented. These
revisions have been made by the TCC and the document (tenth draft) is
currently undergoing final review before being circulated for TC
ballot. This work should
be completed before the next quadrennial meeting in San Diego.
TC2-28 Methods of characterizing spectrophotometers
Chair: Peter Clarke (UK)
AD: Johnson
ML: Andor (Hungary), Bastie (France), Berns (USA), Distl
(Germany), Eckerle (USA), Konstantinova (Bulgaria), McCamy (USA),
Robertson (Canada), Sugiyama (Japan), Ulyanov (Russia), Zwinkels
(Canada)
TR: Write a CIE
report on the characterization of spectrophotometers by means of
reference materials and other methods, with particular reference to
linearity, wavelength error, stray light, and integrating sphere
errors.
ST: Report given by
DD Goodman. The work has
not progressed as quickly as planned.
The draft is close to completion (thanks to the former
chairman J Verrill), and it is mainly editorial issues that now need
to be sorted out. The DD
will encourage the TCC to circulate a final draft by the end of the
year.
TC2-29 Measurement of Detector Linearity
Chair:
T. Goodman (UK) AD: Sauter
ML: Andor (Hungary), Bastie (France), Bittar (New
Zealand), Budde (Canada), Distl (Germany), Dezsi (Hungary), Mihailov
(Russia), Mostl (Germany), Ohno, Parr (USA)
TR: Prepare a CIE guide on methods for the
characterization of the linearity of detectors of optical radiation,
including different principles by which the linearity of detectors
can be determined and causes of non-linear behavior, to aid users of
optical radiation detectors in the selection and use suitable devices
for specific applications.
ST: Report given by the TCC. The draft is at a fairly advanced
stage but needs some more work to complete. Last year the TCC called
for a volunteer for a new chairperson. Several people were
interested. Based on their experiences and knowledge of the
subject of the TC, the TCC recommends Tom Larason of NIST to take
over the chairmanship. This
proposal was voted and agreed with no objections.
The other people who volunteered are asked to help the TC
activity as TC members.
TC2-30 Array Radiometry
Chair: Jim Palmer (USA)
AD: Johnson
ML: Abasari (Hungary), Andoh (Japan), Goodman (UK),
Jones (USA), Mihailov (Russia), Pfleger (Austria), Sauter (Germany),
Wychorski (USA)
TR: Prepare an annotated bibliography for the CIE journal on
diode array radiometry. Make
appropriate recommendations for future work in diode array
radiometry.
ST: AD Johnson
reported. The Chairmanship changed to
Palmer in 1998 but no progress has been reported since then. Quite a
few abstracts were collected by the former chairman, but there was an
issue of copyright for abstracts collected in the former
chairman’s company and a concern that the information might
already be outdated. There was a suggestion at the last D2 meeting in
2001 to move this work to TC2-51 (R. Austin). AD Johnson spoke with J.
Palmer and R. Austin, and both of them agreed on this action. R. Austin is to look at the material collected and
consider integrating them as a part of his TC document if
appropriate. TC2-30 is to be closed.
TC2-32 Measuring Retroreflectance of Wet Horizontal Road
Markings
Chair:
N. Hodson (USA)
AD: Johnson
ML: Austin (USA), Davies (USA), Dibbern (Germany),
Hubert (France), Johnson (USA), Lundkvistl (Sweden), Meydan
(Australia), Meseberg (Germany), Rennilson (USA),
Schmidt-Clausen (Germany), Schnell (USA), Schreuder (Netherlands),
Soardo (Italy), Sorenson (Denmark) - revised August, 1999
TR: To prepare a guide for the methods of measuring
coefficient of retroreflected luminance (specific luminance) of
horizontal road markings under wet weather conditions.
ST: AD Johnson
reported. The TC met last
September in Istanbul, and subsequnelty prepared the third draft
document. The TC document is closely
related to D4. TCC plans
to have another TC meeting in conjunction with the next D4 meeting in
Torino, Italy.
TC2-35 CIE Standard for V(l)
and V’(l)
Chair:
K. Mielenz (USA)
AD: Johnson
ML: Bastie (France), Gardner (Australia), Hengstberger
(South Africa), Moore (UK), Ohno (USA), Parr (USA), Robertson
(Canada), Sauter (Germany), Schanda (Hungary)
TR: To prepare a new CIE Standard on the present V(l) and V’(l) functions.
ST: Editor Moore reported. The document has gone through
NC ballot for comments. It
will go to yes/no vote. There were many comments, mostly editorial,
which need to be sorted out.
<Discussion>
The
Editor raised a question who (among the TCC, CIECB and Editor) should
be responsible for final judgments on the comments from national
committees, and said that the TCC had handed over to the Editor
judgment on the many editorial comments. J. Makai pointed out that
there was one technical comment regarding the definition of radiance
and luminance (i.e. whether to use dF/ ..., dF2/…,
or some other formalism), which needs to be agreed by the Division,
since the change of the equation will necessitate revision of the
ILV. There was some discussion amongst the participants, but no consensus was
reached. This question is to be discussed again at a later date. The
Editor added that the TCC had responded directly to some national
committee comments, without reference to the Editor (with previous
standards, the Editor talked to national committees to resolve some
objections, with some success, but this procedure has not been
followed for this document). The Editor highlighted one particular
technical comment (to add a paragraph to allow use of integral
calculation intervals larger than 1 nm, to be consistent with the
draft colorimetry standard), which the TCC has rejected but the
Editor supports. After considerable discussions on these points, the
DD suggested that the Editor contact the TCC directly to discuss such
technical issues, but that all members of D2
should be involved in any decision on changing the definition
of radiance and luminance in the ILV. All present agreed.
TC2-37 Photometry Using Detectors as Transfer Standards
Chair:
Y. Ohno (USA)
AD: Sauter
ML: G. Andor (Hungary), R. Austin (USA), J. Bastie (France),
A. Bittar (New Zealand), G. Czibula (Germany), A. Corrons (Spain), G.
Dezsi (Hungary), G. Eppeldauer (USA), J. Gardner (Australia), T.
Goodman (U.K.), R. Köhler (BIPM), J. Moore (UK), K. Muray (USA),
J. Pietrzykowski (Poland), R. Rattunde (Germany), M. L. Rastello
(Italy), G. Sauter (Germany), J. Schanda (Hungary), P. Wychorski
(USA)
TR: To prepare a report on the properties of V(l)-corrected detectors that are
suitable for disseminating and maintaining photometric units. This report will include methods for the use of
these detectors.
ST: Report given by the TCC. The
work is nearly complete. The sixth draft was distributed in April
2002 by email, and only a few minor comments were received.
The next draft is for TC ballot, and needs only minor changes
and updates to some figures and the format of document. The TC ballot is to be distributed by the San
Diego meeting.
TC2-39 Geometric Tolerances for Colorimetry
Chair:
D.
Rich (USA)
AD: Johnson
ML: Baba (Japan),
Bittar (New Zealand), Decarreau (France), Erb (Germany), Fisch (USA),
Early (USA), Hanssen (USA), Johnson (USA), Kravetz (USA), Ladson
(USA), Jordon (Canada), Witt (Germany), Pietrzykowski (Poland),
Taylor (UK), Zwinkels (Canada)
TR: Compile a technical report and recommendations specifying
the geometric tolerances for the various geometries in colorimetry,
including 0/45, 0/d and others.
Parts of this technical report may be suitable for inclusion
in a CIE standard specifying several geometric tolerance levels.
ST:
Report
given by AD Johnson. After the last meeting in Gaithersburg, a fourth
draft was prepared and circulated by the TCC around June 2002. The DD
added that NPL has been doing some work on geometric tolerances and
had fed some data to the TCC.
TC2-40 Characterizing the Performance of Illuminance and
Luminance Meters
Chair:
R. Rattunde
(Germany)
AD: Sauter
ML: Austin (USA), Bastie (France), Czibula (Germany),
Dezsi (Hungary), Goodman (UK), Khandelwal (India), Khanh (Germany),
Mahidharia (India), Moore (UK), Ohno (USA), Pietrzykowski (Poland),
Saito (Japan), Sauter (Germany), Stolyarevskaya (Russia), Xu
(Singapore), Ye (China) - revised July 1999
TR: Convert the
present CIE Technical Report No. 69 into an ISO/IEC standard. Prepare a combined CIE/ISO standard describing the
definitions of quantities influencing the performance of illuminance
and luminance meters, as well as defining measurement procedures for
the individual error quantities.
ST: No report received. The
DD pointed out that this is an important TC producing a standard. The DD is to contact the TCC
to request an updated work plan, in order to move things forward.
TC2-42 Colorimetric Measurements for Visual Displays
Chair: C. Wall (UK)
AD: Johnson
ML: G Andor (Hungary), S Ansell (USA), R Baribeau (Canada),
R Berns (USA), P Boyton (USA), CDalton (UK), A Hanson (UK), J Hardis
(USA), H Ikeda (Japan), H Lara (USA), J Laur (Germany), C Leone
(USA), M Lindfors (Finland ), R Luo
(UK), L MacDonald (UK), J Maelfeyt (Belgium), S
McFadden (Canada), Y Ohno (USA), ML Rastello (Italy), M Reid (UK), T
Sakai (Japan), J Schanda (Hungary), A Stienstra (Netherlands), M
Stokes (USA), F Vienot (France) - revised June 2001
TR: To produce a Technical Report summarizing recommended
practice for the measurement of the colorimetric and
spectroradiometric properties of visual displays.
ST: No report received.
TC2-43 Determination of
measurement uncertainties in photometry.
Chair:
G. Sauter (Germany)
AD: Sauter
ML: Bastie (France), Corrons (Spain), Goodman (UK),
Köhler (BIPM), Moore (UK), Ohno (USA)
TR: To prepare a CIE recommendation as the basis for the
determination of measurement uncertainties valid for selected
quantities used in photometry.
ST: No report received.
TC2-44 Vocabulary Matters
Chair:
J. Moore (UK)
AD: N.
Johnson
ML: Billmeyer (USA), Burghout (Netherlands), Ionescu
(Romania), Johnson (USA), Köhler (BIPM), Morren (Belgium), Nishi
(Japan), Ohno (USA), Poppe (Hungary), Sauter (Germany), Schanda
(Hungary), Woo (Canada)
TR: To provide liaison between Div.2 and TC 7-06 "Lighting
Terminology" and support the preparation of the new edition of the
Lighting Vocabulary in the field of light and colour measurements.
ST: Editor Moore reported. The Division 2 part of the
Vocabulary (proposed changes) went through Division ballot in June
2002. One objection, which was also
raised with the TC2-35 document (DS10.2e), was that the ILV
definition of radiance and luminance may be incorrect. . Another
request was to define the CIE standard spectral luminous efficiency
function in the ILV.
<Discussion>
The definition of radiance was discussed in the TC2-35 report
(see above). Regarding the CIE standard
spectral luminous efficiency function, Moore did not think it
necessary. Ohno commented that there are many spectral luminous
efficiency functions - V(l),VM(l),
VB(l),
etc. If V(l) is referred to, it should be called “CIE
standard …”. K.
Kohmoto commented that the revision cycle of the ILV is unclear: a
definite schedule should be made. The availability of an
electronic version of the ILV was also discussed: where or how will
it be made available? There were no clear
answers.
TC2-45 Measurement of LEDs
- Revision of CIE 127
Chair:
Kathleen Muray
(USA)
AD: Sauter
ML: Austin (USA), Bando (Japan), Balta (USA), Berkhout
(USA), Bouman (Netherlands), Budzinski (South Africa), Bym (USA),
Carr (USA), Distl (Germany), Ellis (USA), Fleischer (USA), Gan
(Singapore), Halkin (Belgium), Heidel (Germany), Jones (USA), Kohmoto
(Japan), Larsen (Denmark), Marchl (Germany), Moore (UK), Myers (USA),
Ohno (USA), Rastello (Italy), Sauter (Germany), Scarangello (USA),
Schanda (Hungary), Solomon (Taiwan), Stolyarevskaya (Russia), Webb (USA), Young (USA) -
revised Jul.00.
TR: Revise CIE Pub. 127 to include improved definitions of
quantities and methods of measurement for total flux and partial flux
of LEDs and to re-evaluate other parts including spectral and color
measurements of LEDs.
ST: No report was received from the TCC. DD reported that there was a request from D6 for
guidance on the measurement of the radiance of LEDs. There is a new
CIE publication from D6 on photobiological safety of light sources,
and radiance is one of the critical quantities for the safety limits
specified in the document. It is therefore important that measurement
procedures are unambiguous and clearlydefined. The agreement with D6
was that TC2-45 will cover radiance as well as other quantities that
the TC has already planned to include. Kohmoto added that bare
chips, in addition to encapsulated LEDs, should
be covered for radiance.
Ohno added that e-mail discussions had taken place on the used
of f1-LED to evaluate the V(l) match of
photometer heads, proposed by R. Young, but no conclusion had yet
been reached. DD added that the TC also
plans an intercomparison of spectral measurements of LEDs, and there
were some discussions regarding this by email reflector.
TC2-46 CIE/ISO standards
on LED intensity measurements
Chair: John Scarangello
(USA)
AD: Sauter
ML: Angerstein (Germany), Bando (Japan), Bouman
(Netherlands), Bym (USA), Carr (USA), Distl (Germany), Ellis (USA),
Goodman (UK), Heidel (Germany), Hwang (Taiwan), Jones (USA), Lester
(USA), Moore (UK), Ohno (USA), Rastello (Italy), Sauter (Germany),
Scarangello (USA), Schanda (Austria), Schumacher (Germany), Sojourner
(USA).
TR: To prepare a CIE/ISO standard on the measurement of LED
intensity measurements based on the CIE Pub. 127.
ST: No report received. The
Secretary received apologies from the TCC, saying that he plans to
have on-line discussion on the next draft and to have a meeting in
San Diego.
TC2-47 Characterization
and Calibration Methods of UV Radiometers
Chair: Gan Xu (Singapore)
AD: Sauter
ML: Hengstberger (South Africa), Wilkinson (Australia),
Lambe (UK), Rattunde (Germany), Saunders (USA), Pietrzykowski
(Poland), Corrons (Spain), Larason (USA), Thompson (USA), Kohmoto
(Japan), McArthur (Canada), Kravetz (USA)
TR: Prepare a CIE recommendation on methods of
characterization and calibration of broad-band UV radiometers in the
spectral ranges of UVA and UVB for industrial applications.
ST: No report was
received from the TCC. Kohmoto
reported that the first draft was distributed by email, and the TCC
received comments. The second draft is being
prepared. Bastie mentioned that there
was an unscheduled TC meeting during NEWRAD 2002 at NIST,
Gaithersburg, with many attendees with a high level of interest in
this topic.
An
email from TCC in May 2002 said: At the UV workshop held after the
NEWRAD conference, again people showed strong interest in the work of
TC2-47 and the need for a new international standard for UV meters
was evident. At the meeting, three labs (CSIRO, CSIR and HUT)
promised to send their calibration procedures to the TCC and these
will be put on the CIE website for member’s reference and
discussion. TCC would
encourage other labs to send their procedures or other materials for
discussion. Any suggestions or comments related to the new document
or TC work are welcome. TCC
is preparing the 2nd draft of the TC document and will
circulate it for comments shortly.
DD Goodman added that this TC has taken advantage
of the UV Network within EC looking at various issues related to
measurements of UV radiation. One of their WG is looking at the same
issue of characterization and calibration methods for UV radiometers.
They prepared a document based on CIE 69.
This document did not address all of the issues that TC2-47 is
working on, but the current TC2-47 draft is based on this document
and will need to cover more issues. The documents of UV network
are available on UV Network website.
TC2-48 Spectral responsivity measurement of detectors,
radiometers, and photometers
Chair: G. Eppeldauer
(USA)
AD: Sauter
ML: Austin (USA), Boivin (Canada), Bouman (USA), Corrons
(Spain), Coutin (France), Dezsi (Hungary), Gardner (Australia),
Goodman (UK), Köhler (BIPM), Larason (USA), Larsen (Denmark),
McArthur (Canada), Ohkubo (Japan), Palmer (USA), Pietrzykowski
(Poland), Rattunde (Germany), Sauter (Germany), Webb (USA), Xu
(Singapore), Schanda (Hungary)- revised June 01.
TR: To rewrite the technical report CIE 64 (1984)
"Determination of the spectral responsivity of optical radiation
detectors" to update device and measurement technology, and include
the spectral irradiance and radiance responsivity measurement for
radiometers and photometers from UV to near IR.
ST: Report given by
the TCC. The TC met on
Aug. 24, 2002 in Veszprem with 17 participants.
The scope of the report is to cover spectral responsivity in
radiant power, irradiance, and radiance mode, in the 200 nm to 2.5 mm spectral region. The
Fourth Draft was distributed and discussed in detail. Four chapters
including chapter 3 on radiant power responsivity and chapter 4 on
irradiance responsivity have been written.
Work on Chapter 5 (radiance responsivity) is to start shortly. Several suggestions were made at the meeting, and
the next version of the draft document is to be prepared before the
San Diego meeting.
<Discussion>
Kohmoto requested that the wavelength range should be
extended to 3 mm, to cover the
range required in the photobiological safety standards. DD Goodman mentioned that national scales for
sources do not cover the 2.5 to 3.0 mm region and that
for this reason it was advisable to restrict the range to 2.5 mm. Ohno
mentioned that the photobiological safety requirements concern
measurement of sources and not detectors, so this TC document is not
directly relevant. The participants agreed not
to change the wavelength range.
TC2-49 Photometry of Flashing Light
Chair: Y. Ohno (USA)
AD: Vandermeersch
ML: Andersen (USA), Arens (USA), Austin (USA), Berkhout (USA),
Couzin (USA), Ellis (USA), Eppeldauer (USA), Goodman (UK),
Hengstberger (South Africa), King (USA), Köhler (BIPM), Kondo
(Japan), Rattunde (Germany), Rennilson (USA), Sagawa (Japan),
Schmidt-Clausen (Germany), Sauter (Germany), Tutt (UK), Webb (USA)
TR: Produce a technical report for photometric measurements of
flashing light, including derivation of the photometric quantities
applied to flashing light, measurement of light sources, and
calibration of photometers for flashing light.
ST: The report was
given by the TCC. The TC met in Veszprem on Aug. 26, 2003. 7 members
and 15 guests attended. Draft 2 (Aug. 2002) was distributed and
discussed. Previous Sections 3 and 4 have been merged into one
section. Minor changes on the definition of terms were
discussed and agreed. Section 4 (Effective Intensity), which
described only the Form Factor method in the previous draft, has now
been rewritten to include the three methods currently used, as a
temporary treatment until a consensus can be reached for one best
(recommended) method. The TCC reported that Couzin
& Ohno had carried out some calculations to compare the three
methods and had developed the Modified Allard method, which was
presented at the Symposium. There were considerable discussions on
the new method and the validity of the conventional methods.
A consensus was that visual experiments are needed to evaluate
the Modified Allard method, as well as the conventional methods, for
trains of pulses and other specific pulses.
The TCC agreed to form a Working Group comprising experts from
D1 and D2 (Schmidt-Clausen, Couzin, Vienot, Sagawa, Goodman, and
Ohno) to formulate the experimental conditions of the required visual
experiments and publicize a call for research. Related documents will be
posted on the website.
<Discussion>
DD
Goodman asked whether a TC should be established in D1 to define the
experimental conditions and review data. She suggested that this part
of the planned activity (choice of formula) is a D1 issue and such
recommendations should come from D1. The TCC answered that the WG includes the best experts in the subject
from D1 (Schmidt-Clausen, Sagawa, and Vienot) and that any
recommendations from the WG should therefore be acceptable to D1. DD
suggested that DD and TCC talk to D1D to see if D1 has any advice or
suggestions. The TCC and participants agreed.
(After the D2 meeting, such discussions with D1 officers took
place but D1 could not find anybody to volunteer to lead such an
effort as a new TC or a reportership.)
TC2-50 Measurement of the optical properties of LED
clusters and arrays
Chair: G. Sauter
(Germany)
AD: Vandermeersch
ML: C. Jones (USA), J.
Scarangello (USA), Xu Gan (Singapore), J. Arens (USA), T. Goodman
(UK), D. Halkin (Belgium)
TR: To produce a technical report for the measurement of
optical properties of visible LED arrays and clusters, to derive
optical quantities for large LED arrays and recommendations for
measurement methods and conditions.
ST: No report
received from TCC since the last meeting in Gaithersburg.
TC2-51 Calibration of
multi-channel spectrometers
Chair:
Richard Austin (USA)
AD: Johnson
ML: T. Goodman (UK), G. Hopkinson (UK), S. Prince (UK),
Pietrzykowski (Poland), R. Smith (USA), R. Bergman (USA)
TR: To produce a technical report which sets out guidelines
for the recommended procedures, methods and transfer standards for
the calibration of multi-channel spectrometers.
ST: No progress reported
since the last meeting in Gaithersburg.
The TC is to take over the materials from TC2-30 to consider
use of these for the TC report. (See report for TC2-30)
TC2-52 Addendum to CIE 121 for the Photometry of Emergency
Lighting Luminaires
Chair: G. Vandermeersch
(Belgium)
AD: Vandermeersch
ML: L. Bedocs (UK), TA. Boeman (Netherlands), A. Ottoson
(Sweden) - more members are searched.
TR: To produce an addendum to CIE publication 121 containing
specific requirements for the photometry of emergency lighting
luminaires, in particular to provide additional correction factors on
the relative output of the luminaires at specified times of
operation.
ST: Report
given by the TCC. The TC met on Aug. 26 in Veszprem. The first draft was presented and discussed. The TC work relates to work
in D5, IEC and CEN. There
has been good progress in IEC. There were three international
meetings and one workshop for the past year.
There has been a good solution for evaluation of lighting
performance of centrally supplied luminaires, a concept of emergency
mode ballast lumen factor. This has been approved by IEC, but the document is
still before voting stage. Regarding
self-contained emergency luminaries, work is being carried out in IEC
592-2-22. The TCC intends to have another meeting in October in
Brussels.
TC2-53
Multi-Geometry Color
Measurements of Effect Materials
Chair: Roesler
(Germany)
AD: Johnson
ML: Mike
Pointer (UK), Maria Naddal (USA), Jerzy Pietrzykowski (Poland),
George Andor (HU), Luise Rastello (Italy), Marta Klanjsek Gunde (SI),
Irena Fryc (Poland), Allan Rodrigues (USA), Mike Nofi (USA), Danny
Rich (SUSA), Thomas Dauser (Germany), Peter Gabel (Germany), Werner
Cramer (Germany), Gorow Baba (Japan), Ellen Carter (USA), Harold
VanAken (USA) - April 2003
TR: Write
recommendations for the color measurement of effect materials.
Workplan:
Comparison of the DIN and ASTM standards on
Multigeometry color measurement.
Preparation of an educational section to combine most
interests.
Recommendations from the educational section for the
next meeting.
Meetings are planned for the CIE Session in San Diego
and for DIN and ASTM meetings.
ST: Report given by the
TCC. The TC met first time on Aug.
24 in Veszprem with many participants. It was a brainstorming session
on what should be done by the TC, and what specific inputs are needed
for the report. There was an agreement
to start with a review of existing standards and protocols for
measurements on metallic paints and pigments and effect materials,
possibly including a measurement comparison. The report will begin
with educational part and then measurement recommendations, including
measurement geometry. The recommendations
from TC2-39 will be used as the basis for any recommendations
on measurement geometry. The
TC will look at DIN and ASTM standards to find the classical
description of geometric tolerances.
TC2-54
Review of IEC documents for
color measurement and management in multimedia systems
Chair: Janos Schanda
(HU)
AD: Johnson
ML:
Y. Ohno (USA), D.
Rich (USA)
ST: DD
Goodman reported. Due to decreased
interest, the TCC proposes to close this TC and maintain the activity
as a reportership. A suggestion was made to move
it to a liaison fuction rather than reportership.
The participants agreed.
7.2 Reporterships
Progress
reports on the reporterships were given by the ADs and the reporters
who were present.
R2-05 Visual Gloss (J. Taylor, UK)
AD: Johnson
ST: DD Goodman
reported that Mike Pointer had agreed to take over the reportership.
Pointer is preparing a report for the project on measurement of
appearance at NPL. This will form the basis for
the report for this reportership.
The change of the reporter was approved with no objections.
R2-06 Standardization of Measuring Geometry for the Colorimetry
of Metallic Coatings (C. McCamy, USA)
AD: Johnson
ST: AD
Johnson reported. The
new TC (2-53) was formed last year as a result of this reportership. He had contacted C. McCamy, who confirmed that the reportership should
now be closed. D2 agreed
to close this reportership with no objections.
R2-21 Use of detectors as absolute transfer standards for
spectroradiometry (N. Fox, UK)
AD: Sauter
ST: DD Goodman
reported. This follows TC2-37 which is
looking at photometers as absolute standards.
This reportership is to investigate the potential for taking
the next step, which is to use detectors as absolute standards for
spectroradiometry, e.g., to use diode-array instruments or
tunable-filter systems. There are a lot of
developments, but nothing is yet reliable enough to be generally
recommended. This reportership is to be
kept open and will continue to monitor the situation. Moore commented that this reportership is
important in the respect that source standards are becoming more and
more difficult to obtain.
R2-23 ISO/CIE
Standards for the measurement of reflectance and Transmittance (D.
Rich) AD: Johnson
ST: No report has been received. This reportership is to decide whether we should
convert CIE 130 into standards.
Johnson will try to update the status with TCC.
R2-24
Classification of Color Measurement Instruments (Reporter: Ohno)
AD: Johnson
ST:
Ohno
reported. This
reportership was established in 1999 following a request from D8 for
methods for classification of color measuring instruments in terms of
accuracy. The reporter investigated methods including those
using f1’ (CIE 69), average DE (CIE 13.3), and metamerism index, but is not
convinced that any of these have yet been shown to be suitable for
recommendation for classification purposes.
As it will take a lot more research and the reporter cannot
find time to do this, and because there no longer seems to be a
strong demand from D8 for a classification system for colorimeters,
it was proposed that
the reportership should be closed. The DD suggested that this matter
be carried on to the D8 liaison function and continue to be
monitored. Closure of this reportership
was approved with no objections.
R2-25 Liaison
with IALA (Reporter: Ian Tutt) AD:
Vandermeersch
ST: Goodman reported. According to Tutt, IALA
discussed joint standards with CIE on marine navigation signal lights
but they did not confirm a real need for a joint standard with CIE.
DD Goodman suggests that this reportership be closed and further
needs be monitored under a liaison function. Carl Andersen is
recommended to serve as the liaison person. D2 agreed to close this
reportership and to move it to a liaison function.
R2-26 Eye safety of Light Emitting Diodes
ST: Goodman reported. This reportership was set up last year following
on from the LED Symposium in Gaithersburg.
Following a discussion between D2D and D6D, a new TC (6-55) on
Photobiological Safety of LEDs (Werner Horak) was established in D6
during their meeting in Istanbul.
In addition, it was agreed that
TC2-45 should be asked to include a section on measurement of
the radiance of LEDs, and this has now been added to the planned work
for this TC. Therefore,
the work of the reportership is done.
Closure of this reportership was approved with no
objections..
R2-27 Field Measurement for Traffic Signals
(Reporter: Carl Andersen)
AD:
Vandermeersch
TR: To assess the need for a TC to produce recommendations
on field measurements for traffic signals, in particular those using
LED arrays.
ST: Vandermeersch reported.
Andersen started to investigate existing equipment used for
field measurement of traffic signals, as used in the U.S. The US FHWA has an instrument that is made by
Lighting Sciences. The
instrument measures luminous intensity of traffic signals in two
directions, normal to the fixture and left or right directions.
Andersen intends to verify the performance of this device for
LED traffic signals. Vandermeersch
is not aware of such field measurement instrument used in Europe. A suggestion was made to
request Andersen to extend his study outside the U.S.
R2-28 Evaluation of Colorimeter Spectral Responsivity Balazs Kranicz
TR: To review new methods for assessing the
‘quality-of-fit’ of the spectral responsivity of
colorimeters, particularly for use with new sources such as LEDs.
ST: Kranicz reported. He
will study the evaluation method for tristimulus colorimeter spectral
responsivity for LEDs. f1’
is not sufficient for LEDs. An
accurate fitting is needed especially for blue LEDs. CIELAB cannot be used because there is no white
light reference. He will
also look at TC2-16’s draft by Rastello, and is studying a new
method which he has developed himself.
A report is to be prepared for the next meeting in San Diego. Vandermeersch commented that Stevenson’s
paper (in CR&A) on an intercomparison of spectroradiometric
measurements of retroreflective materials might be useful.
AD Johhnson to send a copy to Kranicz.
7.3
Liaisons with other organizations
CCPR (Rainer Köhler)
DD
reported that Kohler moved to a different position and Michael Stock
has taken over. Ohno
attended the Key Comparison Working Group meeting in May 2001. The meeting reviewed the status of several
comparisons in progress - spectral irradiance (UV, UV-NIR), spectral
responsivity (UV, visible, NIR), diffuse spectral reflectance,
spectral radiance, and aperture area. DD suggested that those who are
not familiar with CCPR activities should visit the BIPM website
(http://www.bipm.fr), which lists all the key comparisons and
results.
Kravetz sent a
regret for not being present, and sent a PowerPoint file for his
report, which was shown to the participants. D8 currently has six
TCs. A new TC Multispectral
Imaging (Patrick Herzog) has been proposed. There are
four reporterships, three of which are to be closed. Several TC
meetings are being planned for Scottsdale with the next formal
meeting of the Division planned for San Diego during the CIE
Quadrennial Meeting. Updates on D8 activites are available at the
website (http://www.colour.org). The PowerPoint file is to be
posted at D2 website.
The
written report was submitted from Zwinkels. DD Goodman read the report. The most recent meeting of TC6/WG3 was on June 6,
2002 in Paris. Several
ISO draft standards are being balloted.
Two new ISO standards, “The determination of D65
brightness”, and “The determination of colour
(D65/10°)” have been proposed.
Several general issues were
also discussed at this meeting.
See Attachment 2 for
the details.
ISO TC 180/SC 1: Solar
energy/Climate - Measurement and data (Dieter Kockott)
There have been no reports for several years. DD Goodman
recently contacted D. Kockott and
confirmed he is retired and no longer active.
DD proposed to close this liaison unless someone takes over. There was no objection to
closing it.
IEC TC34
Lamps and related equipment (Vandermeersch)
Vandermeersch
reported. TC34 met four times during
the past year. TC34A is
responsible for lamps. There
are still some controversial issues related to the measurement of 16
mm tubular fluorescent lamps (TL5 lamps) working only with an
electronic ballast. At present, the recommendation is to measure these
lamps at 25°C and to deliver service conversion factor for
35°C. There is a new study showing that, before each
measurement, the lamp should be burned-in in a vertical position with
the cold spot down, while it is measured horizontally. TC34 has
agreed on this new procedure but has not voted yet. TC34E is responsible for
safety aspects of lamps, which includes LEDs.
ISO on
reflectance and transmittance issues (D. Rich)
AD Johnson reported. No report received.
IDA (J.
Rennilson)
No report received. AD Johnson commented that IDA
is a fast growing organization with 6000- 10000 members, many
professional or amateur astronomers.
The key person at IDA is already active in CIE-USA.
She has also been elected chairman for a new TC in skylight in
D4. Probably more a D4
matter than D2.
OIML (G.
Sauter)
No
report received.
8. Summary of
dissolution of TCs and other functions
TC2-30 Array radiometry (Palmer): The
materials are to be forwarded to TC2-51 (Richard Austin) and to be
considered for inclusion in this TC document if applicable.
TC2-54 Review of IEC documents for color measurement and
management in multimedia systems (Schanda): closed as an activity of
TC due to lack of active interest and volunteers, and moved to a
liaison function.
R2-06 Standardization of Measuring
Geometry for the Colorimetry of Metallic Coatings (McCamy): A new TC
(TC 2-53) has been established to cover this subject.
R2-24 Classification
of color measuring instruments (Ohno): closed due to no prospect of
agreed-upon methods yet.
R2-25 Liaison
with IALA (Tutt): moved to a liaison function (possibly Carl
Anderson)
R2-26 Eye
Safety of Light Emitting Diodes: A new TC (6-55) on Photobiological
Safety of LEDs (Werner Horak) has been established in D6 to cover
this subject.
Liaison ISOTC 180:
Not active for a long time.
The reporter has retired, and no one to take over.
9. Proposals for new TCs and other
functions
9.1 New Technical Committees
1) Round
Robin Investigation of Implementation of CIE Photobiological Safety
Standard.
Proposed by K
Kohmoto as a result of the Ad-hoc meeting on Risk Evaluation of Lamps
and LEDs with CIE Safety Standard held on Aug. 24, 2002.
The original proposal is attached
(Attachment 3). Agreed
by D2. Kohmoto to chair. AD: Sauter
TR:
To
conduct a measurement intercomparison in order to investigate
potential systematic errors in the interpretation of the measurement
procedures laid down in the CIE photobiological safety of lamp
standard (CIE S009), and determine whether improvements are required
to the specified procedures. The output will be a
technical report describing the intercomparison, the results, and
recommendations for improvements to the measurement procedures in CIE
S009.
<Discussion>
A
discussion was held on the original proposal made by Dr Kohmoto.
Goodman commented that measurement up to 3000 nm is probably not
possible, and classification is not D2 work. Section 3.2 (risk
evaluation and lamp classification) should be removed and the scope
modified (as in the TR written above). This was agreed by the
participants. Moore
commented that an intercomparison involves a lot of work. He
questioned the need for the intercomparison, and suggested that
effort should be spent solely on a review of the standard to
determine whether improvements are required. Goodman answered that this
could be done in parallel, but suggested an intercomparison is a good
test for how well recommendations are implemented in practice. It was also suggested at the ad-hoc meeting to
limit the comparison to two types of lamps.
The TC will discuss how many types of lamps should be included
in the intercomparison.
2) CIE/ISO
standards on retroreflection measurements (from CIE54.2)
AD
Johnson proposed. D2
agreed on the need for such new TC. Goodman has already approached
Christine Stratford as a possible chairperson, and she is now seeking
approval from her employers. DD to contact her to confirm whether
this has been approved. Rennilson may have another suggestion if C.
Stratford cannot accept. DD to prepare TR and official proposal for vote.
9.2 New Reporterships
D2
agreed to establish the following reporterships.
1) Characterization of imaging luminance measurement
devices
Proposed by Peter Blattner.
TR: To prepare a proposal for a new TC to prepare
recommendations on the characterization and calibration of CCD-based
imaging photometers, having input from D4 and D8 on the needs from
the application side.
Vandermeersch
commented that there is a need for this work also in D4 for road
lighting. The proposal was supported
by Etienne Pierson. Endorsed
by D2. Blattner to be the reporter. AD: Sauter
2) Problems linked to correct measurement of TL5
fluorescent lamps with existing electronic ballasts.
Proposed by Guy Vandermeersch. As discussed earlier,
there are several problems in measurement of TL5 lamps, which have
different thermal behavior that depends on characteristics of
ballasts. There is a need to study such measurement
problems. Endorsed by D2. Vandermeersch
to be the reporter and to prepare TR. AD: Vandermeersch
3) Problems with the spectroradiometric measurement
of light sources, particularly those associated with bandpass and
sampling intervals.
Proposed by Moore. AD:
Johnson
TR: To consider the need for a revision of CIE 63 (1984) and
make a recommendation regarding whether a separate document is
necessary to deal specifically with issues relating to band pass and
sampling intervals, including the effects on color calculations.
There are issues relating to the spectroradiometric
measurement of light sources for colorimetry, as discussed in the
D1/D2 session on Aug. 26, e.g., bandwidth and sampling.
It seems there is a need for a guidance, probably to revise
CIE publication 63 to bring it up to date and re-iterate various
principles such as bandwidth and sampling.
Ohno agreed that CIE 63 does not address colorimetry aspects.
Stearns and Stears’ bandpass correction should be recommended
more widely. DD
suggested to set up a reportership to decide exactly how we should
take this forward, e.g. whether we need two documents or just a
revision and extension of CIE 63.
It was agreed with no objection to establish a reportership. David Gibbs volunteered to be the reporter and
this was accepted by the Division.
9.3. New
Liaisons
Div.2
agreed to establish the following liaison functions.
- IALA (International Association of Lighthouse Authorities) (Carl
Andersen)
… moved from R2-25.
- IEC TC100/TA2 (Janos Schanda) ... moved from TC2-54.
9.4. Changes
in TCs and reporterships
-
The chairperson of TC2-17 has been changed from D. Kockott to Gene
Zerlaut.
- The chairperson of TC2-29 has been changed from T. Goodman to Tom
Larason
- The reporter for R2-05 has been changed from Julie Taylor to Mike
Pointer.
10. General issues (DD Goodman)
10.1. Division
Director for 2003-2007
DD
Goodman and the other members of the management team are willing to
serve another term but any other nominations were welcome and
requested. There were no nominations,
and the consensus was that D2 is not requesting any changes to the
current management team. There
will be a formal vote for the DD for next term.
10.2. Discussion on future activities
within D2
1) Future Symposia
D2 has organized a number of symposia: two on LED
measurements (1997, 2001); one on uncertainty (2001); and one on
flashing lights (2002). Following
each symposium there has been a wish expressed for a follow-on
symposium on the same topic. What is the highest priority?
The vote for the next symposium to be held was: LED (8),
uncertainty (5), flashing light (0).
Vote for flashing light some time in future (8).
No suggestions were made for other symposia.
Agreed to have LED Symposium in 2004.
2) Potential CIE D2 ‘Handbook’
CIE BA has an idea to publish new forms of publication
(like a handbook) on various themes (like color, spectroradiometry,
etc.), as new way to sell publications.
We discussed compiling CIE publications on related subjects
within D2 as one book, with some introductory pages at the beginning
- a similar form as the Color and Appearance book from ASTM (that
includes a CD in the back of the book). N. Johnson suggested that
such a publication would be of interest, but only if produced in high
quality book-bound form. It
can be done for a small number of copies with reasonable cost these
days. The participants agreed on such a direction.
The costs for this, and the possibility to print on demand,
need to be investigated by CIE CB. More ideas are solicited,
including thoughts on which publications would be suitable for
grouping together in this form. DD to ask everyone later on how the compilation
should be done (which documents should be bound, etc.) for what
handbook.
3) Other initiatives
The categories for supportive membership have been
revised. Cost for the membership is will be much lower than
previously required. It is important to stimulate
the supportive membership because this is one of the ways that CIE is
going to develop in the future i.e. to
hopefully move toward free publications rather than relying on
publication income. There
will be new information available on new supportive membership
categories in CIE NEWS. Try
to encourage your company to become supportive members.
10.3. Liaison
with other Divisions
During the Symposium, people were addressing questions
of the level of input that there needs to be from other Divisions
into the work of D2. In
D2, we already have liaisons with D6 and D8.
To take a step further, DD suggests that we send a
questionnaire to other Divisions, listing things we do in D2 and
asking them to provide information on priorities or level of interest
to them, and also giving them an opportunity to raise issues on
measurement that we are not addressing now. There was no objection to this proposal. DD will
prepare a draft of such a questionnaire and send out to D2 mailing
list for comments, then will send it to other Divisions for their
input.
11. Future D2 meetings:
2003 San Diego (Quadrennial meeting)
2004 It was agreed that the 2004 D2 meeting should be
held in conjunction with the LED Symposium. Two proposals: 1) Japan
(D1 might also be interested); 2) Italy. Either venue could also host
the 3rd CIE Expert Symposium on LED Measurements. Vote (preliminary):
Japan (8), Italy (8). Explore further possibilities
to have it either in Japan or Italy, or elsewhere.
2005 open
The
Division 2 meeting adjourned at 12 noon, August 28.
Attachment 1 Agenda of 2001
Div.2 Meeting
Attachment 2 TC2-39 Committee Activity Report May
2001
Attachment 3 Proposal - Round Robin Investigation of Implementation of
CIE Photobiological Safety Standard