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BS ISO 19962:2019

BS ISO 19962:2019

$142.49

Optics and photonics. Spectroscopic measurement methods for integrated scattering by plane parallel optical elements

Published By Publication Date Number of Pages
BSI 2019 30
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This document specifies procedures for determining the spectroscopic forward scattering characteristics of coated and uncoated optical surfaces over a specified wavelength range between 350 nm and 850 nm using a double-beam spectrophotometer with an integrating sphere. This document is also applicable to the forward scattering properties at a single wavelength.

This document is applicable to spectroscopic forward scattering measurements with collection angles larger than 2,7 degrees. ISO 13696 provides a measurement method for smaller collection angles.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
10 3.2 Symbols
4 Principle
11 5 Measurements using a double-beam spectrophotometer
5.1 General
12 5.2 Double-beam spectrophotometer
5.2.1 General
5.2.2 Radiation source
5.2.3 Optical system
13 5.2.4 Integrating sphere
5.2.5 Detection system
5.3 Test environment
14 6 Specimen preparation
6.1 Specimen
6.2 Conditioning of specimen
7 Procedure
7.1 Performance certification of double-beam spectrophotometer
7.2 Measurement of baseline
15 7.3 Specimen mounting
7.4 Measurement of specimen transmittance
7.5 Measurement of remaining scattering
7.6 Measurement of scattering with specimen
16 7.7 Calculation of the forward scattering of the specimen
7.8 Calculation of the mean forward scattering of the specimen
17 7.9 Uncertainty budget
8 Test report
19 Annex A (informative) Measurement examples of the specimen transmittance, remaining scattering and scattering with a specimen
21 Annex B (normative) Performance certification of a double-beam spectrophotometer
22 Annex C (informative) Influence of minimum scattering collection angle to measured forward scattering
25 Annex D (informative) Derivation of the formula of forward scattering
28 Bibliography

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BS ISO 19962:2019
$142.49