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BS EN ISO 13696:2022

BS EN ISO 13696:2022

$167.15

Optics and photonics. Test method for total scattering by optical components

Published By Publication Date Number of Pages
BSI 2022 40
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This document specifies procedures for the determination of the total scattering by coated and uncoated optical surfaces. Procedures are given for measuring the contributions of the forward scattering or backward scattering to the total scattering of an optical component. This document applies to coated and uncoated optical components with optical surfaces that have a radius of curvature of more than 10 m. Measurement wavelengths covered by this document range from the ultraviolet above 250 nm to the infrared spectral region below 15 µm. For measurements in the deep ultraviolet between 190 nm to 250 nm, specific methods are considered and are described. Generally, optical scattering is considered as neglectable for wavelengths above 15 µm.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
6 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
11 3.2 Symbols and units of measure
4 Test method
4.1 Principle
4.2 Measurement arrangement and test equipment
4.2.1 General
12 4.2.2 Radiation source
4.2.3 Beam preparation system
13 4.2.4 Integrating sphere
14 4.2.5 Detection system
4.2.6 Specimen holder
4.3 Arrangement with high sensitivity
15 4.4 Preparation of specimens
5 Procedure
5.1 General
16 5.2 Alignment procedure
5.2.1 General
5.2.2 Alignment of the beam
5.2.3 Alignment of the specimen
5.3 Measurement procedure
17 6 Evaluation
6.1 Determination of the total scattering value
20 6.2 Error budget
7 Test report
22 Annex A (informative) Set-up with a Coblentz hemisphere
25 Annex B (informative) Example of test report
29 Annex C (informative) Statistical evaluation example
34 Annex D (informative) Example for selection of spacing
37 Annex E (informative) Alternative method for calibrating total scatter measurements using a calcium fluoride diffuser disk
39 Bibliography

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BS EN ISO 13696:2022
$167.15