Jul. 15, 2003
Summary
of 2003 CIE Division 2 Meeting
9:00 Ð 18:00,
2 July 2003, San Diego
The
2003 CIE Division 2 meeting was held at Town and Country hotel, San Diego, July
2, 2003, as part of the 25th Session of
the CIE. We had 70 participants, a
record in recent years.
The new CIE President, Wout van Bommel, gave a report on the
vision of CIE and the Board plans.
His PPT presentation is available on the website. See the note at the
end.
D2 management team
Following a vote within the Division, DD
Teresa Goodman will continue to serve as DD for another term. Our current ADs
(Norb Johnson, Georg Sauter and Guy Vandermeersch) and Secretary (Yoshi Ohno)
will also continue. The Editor, John Moore, has resigned. D2 thanks John for
his dedicated work and extremely thorough job as D2 Editor for many years. Our
new D2 Editor is Jim Gardner (Australia).
Two issues in debate
During
EditorÕs report, D2 made decisions on the following two issues that were in
debate.
1) Radiance /
luminance definition in DS010.2e and ILV
There were
active debates on this subject last year via the e-mail reflector. Strong opinions were expressed, but
these were evenly divided between keeping the definition unchanged and the
various proposed options for change.
It was also confirmed that, the current form of equation was
deliberately chosen when the ILV was last revised, and was changed from the
double to single derivative form. Based on the general policy for the ILV, that
existing definitions should stand unless there is a strong consensus for
change, D2 voted that the definition of radiance (and related quantities) in
the ILV and DS010.2e should be left unchanged. A suggestion was made by
J. Schanda to add a note on the other form of equation (using d2F), which will be considered.
2)
Wavelength definition of Illuminant A in DS014-2.
DS014-2
is a revision of ISO 10526/CIE S005 Joint ISO/CIE standard: CIE standard
illuminants for colorimetry (1999). The version distributed for Divisional
ballot in March 2003 stated that the wavelengths given in the tables for
Illuminant A apply in vacuum, due to an interpretation that the original
equation in 1931 was for vacuum wavelengths. There was one negative vote (USA) and one vote with comment
(Canada), both requesting an explicit change to standard air, to ensure
consistency with other CIE colorimetric tables. After some discussion, D2
voted, with no objection, to ask the CIE Board to adopt a resolution stating
that the wavelengths used in the tables defining Standard Illuminant A apply
for standard air (this resolution was subsequently passed by the Board). It was
also agreed that DS014-2 would be amended as necessary, to make clear that the
wavelengths are for standard air and to update the notes explaining the history.
TC2-04 Secondary standard sources: TC report has
been published as CIE 149:2002.
TC2-24 Users
guide for the selection of illuminance and luminance meters: To be closed if contact with the
chairman cannot be re-established (note that following discussion with
colleagues of the chairman, it is apparent that he is no longer involved in
this work and the Board therefore agreed that the TC should be dissolved).
TC2-55 Round
Robin Investigation of Implementation of CIE Photobiological Safety
Standard: Chairman resigned and no
new volunteer. Also, S009 is being reconsidered in Division 6 and an
intercomparison is therefore premature.
R2-05 Visual
Gloss: A report has been produced.
Further work on this topic will be pursued in D1 via a new TC on Visual
appearance measurement.
New TCs and Reporterships
D2 agreed to establish the following new
TCs.
1) TC 2-56 (S) CIE/ISO standard on
retroreflection measurements
Chair:
Cameron Miller (USA)
TR: To prepare a CIE/ISO standard on the measurement of retroreflective materials based on CIE Publication 54.2
It was already agreed in 2002 to establish this new TC, but
the chairperson was not determined.
A new candidate, C. Miller, was recommended and accepted.
2) TC2-57 (S) Revision of CIE S014-2
Chair:
Alan Robertson (Canada)
TR: To revise CIE Standard S014-2 (CIE Standard Illuminants) to include Illuminant D50
Proposed
in the liaison report of ISO TC6/WG3 by Joanne Zwinkels. The paper and graphics
arts industries (ISO TC130) have requested that Illuminant D50 should be
included in this CIE standard.
3) TC2-58 Measurement of LED radiance and
luminance
Chair:
Kohtaro Kohmoto (Japan)
TR: To prepare a Technical Report setting out recommendations for measurement of the radiance and luminance of LEDs, taking particular account of the specific requirements for evaluation of photobiological safety
The
issue was raised by D6 and brought to TC2-45. The TC2-45 meeting on Jul. 1, 2003 agreed that this is a
substantial issue crossing D2 and D6 and should be handled in a separate
TC.
D2 agreed to establish the following new
reporterships.
1) Visual appearance measurement, Mike
Pointer (UK)
2) Measurement of laser-based projection
displays, Keith Niall (Canada)
3) Methods for characterising and calibrating detectors in photon counting regime, Maria Luisa Rastello (Italy)
Note: The titles and TRs shown above may not
be in the exact wording as finally approved. See the forthcoming minutes for the official titles and TRs.
á
The chair
of TC2-17 changed to Gene Zerlaut (USA) É before San Diego meeting.
á
The TR of
TC2-23 will be revised to include an addendum on measurement of TL5 lamps, once
R2-30 is completed.
á
The chair
of TC2-44 has changed to the new Editor, Jim Gardner.
á
The TR of
TC2-51 have been revised.
á
The liaison
person for CCPR changed to Yoshi Ohno É before San Diego meeting.
á
The liaison
person for IEC TC100 has changed to Danny Rich (USA).
2004
There were two options:
1) D1 has decided to have its next meeting in Tokyo, Japan,
in early June 2004, and proposed to have joint D1/D2 meetings and a D1/D2 joint
symposium on LEDs
2) IEN, Italy extended an invitation to hold the next D2
meeting and LED symposium in Turin, Italy.
D2 voted unanimously to meet in Tokyo, Japan and also to hold
a D1/D2 joint symposium on measurement and visual aspects of LEDs. The dates are TBD soon.
2005
There are two options:
1) Leon, Spain, in conjunction with CIE Midterm meeting and
AIC meeting (May 2005)
2) Davos, Switzerland, in conjunction with NEWRAD, Sep. 19-23, 2005.
The preliminary choice of D2 was Leon, Spain, by dominant
vote. A formal decision will be
made next year. It was also decided that D2 will organize another symposium on
uncertainty evaluation in 2005.
2006
We have an invitation from G. Sauter for a D2 meeting at PTB,
Braunschweig, Germany. Still open to other invitations. Formal decision will be made in
2005.
For further
details, refer to the minutes of the 2003 D2 meeting that are forthcoming.
The materials
presented at the meeting and some reports received after the meeting are posted
at: http://cie2.nist.gov/documents/2003-D2.htm
Complied by D2
Director and Secretary