ISO 19741:2018

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

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.

Optique et photonique — Matériaux et composants optiques — Méthodes d’essai pour déterminer les stries des matériaux optiques infrarouges

General Information

• Status: Published
• Publication Date: 07-May-2018
• ICS: 37.020 - Optical equipment
• Technical Committee: ISO/TC 172/SC 3 - Optical materials and components
• Drafting Committee: ISO/TC 172/SC 3/WG 3 - Characterization of IR materials
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 21-Dec-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 19741
First edition
2018-05
Optics and photonics — Optical
materials and components — Test
method for striae in infrared optical
materials
Optique et photonique — Matériaux et composants optiques —
Méthodes d’essai pour déterminer les stries des matériaux optiques
infrarouges
Reference number
ISO 19741:2018(E)
©
ISO 2018

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ISO 19741:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2018 – All rights reserved

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ISO 19741:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Test conditions . 3
6.1 Environmental temperature . 3
6.2 Relative air humidity . 3
7 Sample . 3
8 Procedure. 4
8.1 Projection measurement . 4
8.2 Schlieren measurement . 4
9 Data processing . 5
10 Test report . 5
Annex A (informative) Test record for striae in infrared optical materials .6
Bibliography . 7
© ISO 2018 – All rights reserved iii

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ISO 19741:2018(E)

Foreword
ISO
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