ISO DIS 15368
Optics and photonics — Measurement of reflectance of plane surfaces and transmittance of plane parallel elements
|Publication Date:||18 March 2020|
|ICS Code (Optics and optical measurements in general):||17.180.01|
This document provides rules for the measurement of the spectral reflectance of plane surfaces and the spectral transmittance of plane parallel elements using spectrophotometers.
The transmittance τ and the reflectance ρ of optical components are generally divided into two parts as follows:
NOTE Wherever the Greek letters are mistakable, T and R can be used.
This document 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 document is applicable to test samples, which are coated or uncoated optical components without optical power.