ISO 15368:2001 PDF

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 190nm 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.

ISO 15368:2001 Referenced Document

IEC 60050-845:1987 International electrotechnical vocabulary; chapter 845: lighting
ISO 10110-8:1997 Optics and optical instruments - Preparation of drawings for optical elements and systems - Part 8: Surface texture
ISO 31-6:1992 Quantities and units; part 6: light and related electromagnetic radiations
ISO 9211-1:1994 Optics and optical instruments - Optical coatings - Part 1: Definitions
ISO 9211-2:1994 Optics and optical instruments - Optical coatings - Part 2: Optical properties

2021 ISO 15368:2021 Optics and optical instruments — Measurement of reflectance of plane surfaces and transmittance of plane parallel elements
2001 ISO 15368:2001 Optics and optical instruments - Measurement of reflectance of plane surfaces and transmittance of plane parallel elements