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Standard
ISO 6760-2
First edition
Optics and photonics — Test
2024-05
method for temperature coefficient
of refractive index of optical
glasses —
Part 2:
Interferometric method
Optique et photonique — Méthode d'essai pour déterminer le
coefficient de température de l'indice de réfraction des verres
optiques —
Partie 2: Méthode interférométrique
Reference number
ISO 6760-2:2024(en) © ISO 2024
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ISO 6760-2:2024(en)
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Published in Switzerland
© ISO 2024 – All rights reserved
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ISO 6760-2:2024(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 . 2
5.1 General .2
5.2 Light sources .3
5.3 Thermal chamber .4
5.4 Flat plates .4
5.5 Interferometer for optical path length change measurement .5
5.6 Interferometer for expansion measurement .5
5.7 Detectors.5
5.8 Temperature sensor .6
5.9 Barometer .6
6 Measurement specimen .
...