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Standard
ISO 6760-1
First edition
Optics and photonics — Test
2024-05
method for temperature coefficient
of refractive index of optical
glasses —
Part 1:
Minimum deviation method
Optique et photonique — Méthode d'essai pour déterminer le
coefficient de température de l'indice de réfraction des verres
optiques —
Partie 1: Méthode de la déviation minimale
Reference number
ISO 6760-1:2024(en) © ISO 2024
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ISO 6760-1:2024(en)
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Published in Switzerland
© ISO 2024 – All rights reserved
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ISO 6760-1:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Measuring apparatus . 3
5.1 Goniometer .3
5.2 Light source .3
5.3 Detector .3
5.4 Thermal chamber .3
6 Specimen prism . 4
7 Measurement . 4
7.1 Measurement of apex angle . .4
7.2 Measurement of the angle of minimum deviation .4
8 Calculation . 5
8.1 Absolute refractive index .
...