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ISO 6760-2:2024

(Main)

Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method

Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method

This document specifies a test method for the temperature coefficient of refractive index of optical glass using interferometry. Temperature changes in optical glass lead to changes in the optical path length. The change in optical path length can be measured with an interferometer using the number of cycles of light/dark change of the interference stripe. This document defines a test method to measure the amount of change in the refractive index when the temperature of the specimen is changed continuously. The intended temperature range for the specified measurement method is an arbitrary range. The intended wavelength range for the specified measurement method is 365 nm to 1 014 nm. The intended accuracy for the specified measurement method is within 1 × 10-6 K-1.

Optique et photonique — Méthode d'essai pour déterminer le coefficient de température de l'indice de réfraction des verres optiques — Partie 2: Méthode interférométrique

General Information

Status
Published
Publication Date
05-May-2024
ICS
37.020 - Optical equipment
Technical Committee
ISO/TC 172/SC 3 - Optical materials and components
Drafting Committee
ISO/TC 172/SC 3 - Optical materials and components
Current Stage
6060 - International Standard published
Start Date
06-May-2024
Due Date
04-Nov-2024
Completion Date
06-May-2024
Ref Project

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ISO 6760-2:2024 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 05. 2024ISO 6760-2:2024 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 05. 2024
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ISO 6760-2:2024 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 05. 2024
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ISO/PRF 6760-2 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 03. 2024ISO/PRF 6760-2 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 03. 2024
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ISO/PRF 6760-2 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 03. 2024
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REDLINE ISO/PRF 6760-2 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 03. 2024REDLINE ISO/PRF 6760-2 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 03. 2024
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REDLINE ISO/PRF 6760-2 - Optics and photonics — Test method for temperature coefficient of refractive index of optical glasses — Part 2: Interferometric method Released:6. 03. 2024
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Standards Content (Sample)

International
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

---------------------- Page: 1 ----------------------
ISO 6760-2:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland

© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
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 .
...

International
Standard
ISO 6760-2
First edition
Optics and photonics — Test
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
PROOF/ÉPREUVE
Reference number
ISO 6760-2:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
ISO 6760-2:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
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 .
...

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ISO/PRF 6760-2:2024(en)
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ISO /TC 172/SC 3/WG 1
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Secretariat: JISC
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Optics and photonics — Test method for temperature coefficient of
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Interferometric method
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Optique et photonique — Méthode d'essai pour déterminer le coefficient de température de l'indice de
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réfraction des verres optiques — Partie 2: méthode interférométrique —
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St l D fi iti

---------------------- Page: 1 ----------------------
ISO/PRF 6760-2:2024(en)
Formatted: Font: Bold
Formatted: HeaderCentered
Formatted: French (France)
© ISO 2024
Formatted: Right: 1.5 cm, Bottom: 1 cm, Gutter: 0 cm,
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
Header distance from edge: 1.27 cm, Footer distance
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
from edge: 0.5 cm
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either
Commented [eXtyles1]: The reference "ISO 2024" is to a
ISO at the address below or ISO’s member body in the country of the requester.
withdrawn standard
ISO copyright office Formatted: Default Paragraph Font, French (France)
CP 401 • Ch. de Blandonnet 8
Formatted: Default Paragraph Font, French (France)
CH-1214 Vernier, Geneva
Formatted: French (France)
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Formatted: French (France)
Website: www.iso.orgwww.iso.org
Formatted: French (France)
Published in Switzerland
Formatted: French (France)
Formatted: FooterPageRomanNumber
© ISO 2024 – All rights reserved

ii

---------------------- Page: 2 ----------------------
ISO/PRF 6760-2:2024(en)
Formatted: Font: 11 pt, Bold
Formatted: Font: 11 pt, Bold
Formatted: Font: Bold
Contents
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Foreword . Error! Bookmark not defined.
Introduction . Error! Bookmark not defined.
1 Scope . Error! Bookmark not defined.
2 Normative references . Error! Bookmark not defined.
3 Terms and definitions . Error! Bookmark not defined.
4 Principle. Error! Bookmark not defined.
5 Measuring apparatus . Error! Bookmark not defined.
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5.3 Thermal chamber . Error! Bookmark not defined.
5.4 Flat plates . Error! Bookmark not defined.
5.5 Interferometer for optical path length change measurement . Error! Bookmark not defined.
5.6 Interferometer for expansion measurement . Error! Bookmark not defined.
5.7 Detectors .
...

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