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BS ISO 19741:2018

BS ISO 19741:2018

$86.31

Optics and photonics. Optical materials and components. Test method for striae in infrared optical materials

Published By Publication Date Number of Pages
BSI 2018 14
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This document specifies the principle, apparatus, condition, sample, procedure and data processing of measuring striae in infrared optical materials.

It is applicable to the determination of striae in infrared optical materials, such as infrared optical glass, which is opaque to visible wavelengths and whose transmission optical spectra are beyond 0,78 µm.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
8 5 Apparatus
5.1 Apparatus arrangement
5.2 Collimating infrared light source system
5.3 Projection optical system
9 5.4 Knife edge device
5.5 Image sensor
5.6 Computer image collecting, processing and displaying system
5.7 Standard grey level sample
6 Test conditions
6.1 Environmental temperature
6.2 Relative air humidity
7 Sample
7.1 Surface roughness
7.2 Scratches and digs of surface
10 8 Procedure
8.1 Projection measurement
8.2 Schlieren measurement
11 9 Data processing
10 Test report
12 Annex A (informative) Test record for striae in infrared optical materials
13 Bibliography

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BS ISO 19741:2018
$86.31