Standard Practice for Describing Retroreflection

Importancia y uso:

4.1 This practice applies to any measurement of reflectance in which the angle at the sample between the direction of the incident radiation and the direction of viewing is less than approximately 10°, and the reflected radiation is concentrated in a direction opposite to the direction of incidence.

4.2 The CIE (goniometer) system described in 6.1.1 was developed by the Subcommittee on Retroreflection of Committee 2.3 on Materials of the International Commission on Illumination (Commission International de l'Eclairage, CIE). It is intended to provide a common basis for the measurement of retroreflection, which should be used worldwide.

4.3 This practice provides alternative geometric coordinate systems useful for visualizing relationships between various angles in actual use.

Subcomité:

E12.10

Referida por:

D4956-19, E0179-17R22, E0284-22, E0811-09R20E01, E0809-21, E3320-21, D4061-13R18, E3165-18, E1696-15R22, D4383-21, D7585_D7585M-10R22, E2540-16R22, D4280-23, D8379_D8379M-21, D8514_D8514M-23, E1709-16R22, E0810-20

Volúmen:

06.01

Número ICS:

17.180.20 (Colours and measurement of light)

Palabras clave:

Application system; CIE (goniometer) system; entrance angle; Intrinsic system; observation angle; orientation angle; presentation angle; retroreflection; rotation angle;