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CIE 2017 Midterm Meeting, Jeju Island, Republic of Korea. October 20 - 28, 2017 




Guide to the Properties and Uses of Retroreflectors at Night

CIE 072-1987

ISBN 978 3 900734 98 4

This guide describes the properties, characteristics and uses of retroreflectors at night. It was written in simple language for those who, in one way or another, have to deal with retroreflectors in their professional activity and have a limited knowledge of optics and lighting technology. Sections 2, 3, and 4 introduce the fundamentals of the subject. Section 5 explains the construction and functioning of different optical systems and (prismatic or spherical-lens) retroreflectors. Section 6 and 7 describe the effect of dew, frost, and the deterioration of retroreflectors. Section 8 deals with tests of photometric and colorimetric performance, as well as commonly performed quality tests of the resistance and durability of materials. Section 9 enumerates typical uses of retroreflectors and retroreflecting sheeting for road, railroad, airport, waterway, sea navigation, search and rescue, vehicle, cyclist, pedestrian, and safety signs. Section 10 gives a selected bibliography on retroreflectors.

The publication includes eight annexes, containing drawings, charts, tables, diagrams, and calculation methods.

The publication contains 57 pages, 35 figures and 2 tables.

The following members of TC 1.6 took part in the preparation of this technical report:

  • M. Artom, Italy
  • B. Brekke, Norway
  • M. Dutruit, Switzerland (Chair)
  • P. Jainski, Germany (BRD)
  • R.D. Lozano, Argentina
  • C.W. Mortimer, Great Britain
  • K. Rumar, Sweden
  • W. Sator, South Africa
  • A.M. Serres, France
  • H. Schmidt-Clausen, Germany (BRD)
  • D.A. Schreuder, The Netherlands
  • R.N. Schwab, USA
  • H.F. Stephenson, Great Britain
  • B. Tansley, Canada

Consultants:
  • P. Blaise, France
  • L. Morren, Belgium
  • H. Terstiege, Germany (BRD)
  • P.L. Walraven, The Netherlands


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