ISO 19740:2018

Optics and photonics — Optical materials and components — Test method for homogeneity of infrared optical materials

This document specifies the principle, apparatus, condition, sample, procedure and data processing of measuring homogeneity of infrared optical materials. It is applicable to the determination of homogeneity of infrared optical materials, such as infrared optical glass, infrared crystals and infrared ceramics, which are 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 l’homogénéité 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: 9093 - International Standard confirmed
• Completion Date: 10-Nov-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 19740
First edition
2018-05
Optics and photonics — Optical
materials and components — Test
method for homogeneity of infrared
optical materials
Optique et photonique — Matériaux et composants optiques —
Méthodes d’essai pour déterminer l’homogénéité des matériaux
optiques infrarouges
Reference number
ISO 19740:2018(E)
©
ISO 2018

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ISO 19740:2018(E)

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© ISO 2018
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Published in Switzerland
ii © ISO 2018 – All rights reserved

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ISO 19740:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 3
5.1 Apparatus arrangement . 3
5.2 Optical module of interferometer . 4
5.3 Reference flat . 4
5.4 Standard mirror . 4
5.5 Image sensor . 4
5.6 Computer data collecting, processing and displaying system. 4
5.7 Thickness measurement equipment . 4
6 Test conditions . 4
6.1 Temperature . 4
6.2 Relative humidity . 4
6.3 Vibration isolation . 4
6.4 Airflow . 5
7 Sample .
...