GSO ISO 15368:2015

ISO 15368:2001
Gulf Standard   Current Edition · Approved on 03 September 2015

Optics and optical instruments -- Measurement of reflectance of plane surfaces and transmittance of plane parallel elements

GSO ISO 15368:2015 Files

English 13 Pages
Current Edition Reference Language
42.57 OMR

GSO ISO 15368:2015 Scope

This International Standard gives rules for the measurement of the spectral reflectance of plane surfaces and spectral transmittance of plane parallel elements using spectrophotometers over the spectral range 190 nm to 25 μm. The transmittance τ and the reflectance ρ of optical components are generally divided into two parts as follows: τ = τr + τd (1) ρ = ρr + ρd (2) where τr is the regular transmittance; τd is the diffuse transmittance; ρr is the regular reflectance; ρd is the diffuse reflectance. This International Standard applies only to measurements of the regular transmittance and the regular reflectance; it does not apply to those of the diffuse transmittance and the diffuse reflectance. This International Standard is applicable to test specimens which are coated or uncoated optical components without optical power.

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