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CIE 072-1987

Guide to the properties and uses of retroreflectors at night
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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.-\n--\n-The publication includes eight annexes, containing drawings, charts, tables, diagrams, and calculation methods. Keywords: motorized traffic, retroreflectors, signals and signs
SDO CIE: International Commission on Illumination
Document Number 72
Publication Date Jan. 1, 1987
Language en - English
Page Count 61
Revision Level
Supercedes
Committee
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