ISO 11382

Optics and photonics — Optical materials and components — Characterization of optical materials used in the infrared spectral range from 0,78 µm to 25 µm

This document provides guidelines for the description of data sheets for infrared materials. It specifies the nomenclature and the properties of infrared materials which are reported on such data sheets. These data sheets do not necessarily contain information on every property identified in this document. This document also specifies the parameters needed to characterize optical materials intended for use in the infrared spectral range from 0,78 µm to 25 µm and provides various methods to be used for measuring these parameters. This document is applicable only to materials used in the manufacture of passive optical components. The properties of materials used in active applications (e.g. optoelectronics) are not taken into account. Materials specified in this document can also transmit in other spectral domains (microwaves, visible or ultraviolet).

Optique et photonique — Matériaux et composants optiques — Caractérisation des matériaux optiques utilisés dans la bande spectrale infrarouge de 0,78 µm à 25 µm

L'ISO 11382:2010 fournit des lignes directrices pour la description de fiches techniques concernant les matériaux pour infrarouge. Elle spécifie la nomenclature et les propriétés des matériaux consignés dans de telles fiches techniques. Ces fiches techniques ne contiennent pas nécessairement des informations sur chaque propriété identifiée dans la présente Norme internationale. L'ISO 11382:2010 spécifie également les paramètres nécessaires à la caractérisation des matériaux optiques conçus pour être utilisés dans le domaine spectral infrarouge compris entre 0,78 µm et 25 µm, et donne également certaines méthodes à utiliser pour mesurer ces paramètres. L'ISO 11382:2010 s'applique uniquement aux matériaux utilisés dans la fabrication de composants optiques passifs. Les propriétés des matériaux utilisés dans des applications actives (par exemple l'opto-électronique) ne sont pas prises en compte. Les matériaux traités dans l'ISO 11382:2010 peuvent aussi transmettre dans d'autres domaines spectraux (micro-ondes, visible ou UV).

General Information

• Status: Not Published
• 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: 6000 - International Standard under publication
• Completion Date: 30-Sep-2022

RELATIONS

• Revises: ISO 11382:2010 - Optics and photonics — Optical materials and components — Characterization of optical materials used in the infrared spectral range from 0,78 µm to 25 µm
• Effective Date: 06-Jun-2022

Standards Content (sample)

2022-09-01
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ISO/FDIS 11382:2022(E)
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at 18 pt
ISO /TC 172/SC 3/WG 3
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DATE: 2022-xx
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Secretariat: JISC
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Optics and photonics — Optical materials and components — Characterization of optical

materials used in the infrared spectral range from 0,78 µm to 25 µm Style Definition: List Bullet: Indent: Left: 0 pt, Hanging:

18 pt, No bullets or numbering, Tab stops: 18 pt, List
tab

Optique et photonique — Matériaux et composants optiques — Caractérisation des matériaux

optiques utilisés dans la bande spectrale infrarouge de 0,78 µm à 25 µm
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ISO 11382:2022(E)
© ISO 2022
Commented [eXtyles1]: The reference is to a withdrawn
standard which has been replaced

All rights reserved. Unless otherwise specified, or required in the context of its implementation,

ISO/IEC 2022, Information technology — Character code

no part of this publication may be reproduced or utilized otherwise in any form or by any means,

structure and extension techniques

electronic or mechanical, including photocopying, or posting on the internet or an intranet,

Formatted: Pattern: Clear

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.
Formatted: Pattern: Clear
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2022 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 11382:2022(E)
Contents

Foreword ...................................................................................................................................................................... 4

Introduction ................................................................................................................................................................ 5

1 Scope ................................................................................................................................................................ 1

2 Normative references ................................................................................................................................ 1

3 Terms and definitions ................................................................................................................................ 1

4 Symbols and units ....................................................................................................................................... 2

5 Nomenclature ............................................................................................................................................... 2

5.1 General ............................................................................................................................................................ 2

5.2 Name ................................................................................................................................................................ 3

5.3 Manufacturer reference ............................................................................................................................ 3

5.4 Material structure ....................................................................................................................................... 3

5.5 Manufacturing process .............................................................................................................................. 3

5.6 Form of nomenclature ............................................................................................................................... 3

6 Optical properties ....................................................................................................................................... 4

6.1 General ............................................................................................................................................................ 4

6.2 Transmittance .............................................................................................................................................. 5

6.3 Absorption coefficient................................................................................................................................ 6

6.4 Transmittance uniformity ........................................................................................................................ 7

6.5 Refractive index ........................................................................................................................................... 7

6.6 Refractive index variation ........................................................................................................................ 8

6.7 Dependence of the refractive index on temperature ....................................................................... 8

6.8 Optical homogeneity (homogeneity of refractive index)................................................................ 9

6.9 Birefringence ................................................................................................................................................ 9

6.10 Photoelastic constant ............................................................................................................................... 10

6.11 Dispersion .................................................................................................................................................... 10

7 Other properties ........................................................................................................................................ 10

7.1 General .......................................................................................................................................................... 10

7.2 Specific gravity ........................................................................................................................................... 10

7.3 Molecular weight ....................................................................................................................................... 10

7.4 Thermal properties .................................................................................................................................. 10

7.5 Hardness ...................................................................................................................................................... 10

7.6 Elastic modulus .......................................................................................................................................... 10

7.7 Maximum dimensions .............................................................................................................................. 11

Bibliography ............................................................................................................................................................. 12

© ISO 2022 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 11382:2022(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national

standards bodies (ISO member bodies). The work of preparing International Standards is normally

carried out through ISO technical committees. Each member body interested in a subject for which a

technical committee has been established has the right to be represented on that committee.

International organizations, governmental and non-governmental, in liaison with ISO, also take part in

the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all

matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directiveswww.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patentswww.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see

www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee

SC 3, Optical materials and components.

This second edition cancels and replaces the first edition (ISO 11382:2010), which has been technically

Formatted: Pattern: Clear
revised.
Formatted: Pattern: Clear
Formatted: Pattern: Clear
The main changes are as follows:
— update of Clause 2, Normative references, and Bibliography;
Formatted: Pattern: Clear
— update of Table 1 and Table 2.
Formatted: Pattern: Clear
Formatted: Pattern: Clear

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at
www.iso.org/members.htmlwww.iso.org/members.html.
iv © ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 11382:2022(E)
Introduction

Many standards for optical glass exist that are primarily used for the visible range, however, it is not

easy to apply these standards directly to infrared materials.

Often, the properties of infrared materials are known with less certainty than those used in the visible

range because the methods of measurements are different, incomplete or inaccurate.

© ISO 2022 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 11382:2022(E)
Optics and photonics — Optical materials and components —
Characterization of optical materials used in the infrared spectral
range from 0,78 µm to 25 µm
1 Scope

This document provides guidelines for the description of data sheets for infrared materials. It specifies

the nomenclature and the properties of infrared materials which are reported on such data sheets.

These data sheets do not necessarily contain information on every property identified in this document.

This document also specifies the parameters needed to characterize optical materials intended for use

in the infrared spectral range from 0,78 µm to 25 µm and provides various methods to be used for

measuring these parameters.

This document is applicable only to materials used in the manufacture of passive optical components.

Formatted: Pattern: Clear

The properties of materials used in active applications (e.g. optoelectronics) are not taken into account.

Formatted: Pattern: Clear

Materials specified in this document can also transmit in other spectral domains (microwaves, visible or

Formatted: Pattern: Clear
ultraviolet).
Formatted: Pattern: Clear
Formatted: Pattern: Clear
2 Normative references
Formatted: Pattern: Clear

The following documents are referred to in the text in such a way that some or all of their content

Formatted: Pattern: Clear

constitutes requirements of this document. For dated references, only the edition cited applies. For

Formatted: Pattern: Clear

undated references, the latest edition of the referenced document (including any amendments) applies.

Formatted: Pattern: Clear

ISO 10110-18, Optics and photonics — Preparation of drawings for optical elements and systems —

Part 18: Stress birefringence, bubbles and inclusions, homogeneity, and striae

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Formatted: Pattern: Clear

ISO 12123:2018, Optics and photonics — Specification of raw optical glass

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ISO 15368, Optics and photonics — Measurement of reflectance of plane surfaces and transmittance

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of plane parallel elements
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ISO 80000-7, Quantities and units — Part 7: Light and radiation
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ISO 80000-7, Quantities and units — Part 7: Light and radiation
Commented [eXtyles2]: Not found: "IEC 60050-845"
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3 Terms and definitions
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For the purposes of this document, the terms and definitions given in ISO 12123, ISO 80000-7 and the

following apply .
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These terms and definitions are consistent with those given in IEC 60050-845 and ISO/IEC Guide 98-3.

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© ISO 2022 – All rights reserved 1
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ISO 11382:2022(E)

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

Formatted: English (United States)

— ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp Formatted: Font: Times New Roman, 12 pt, English

(United States)

— IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/

Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
3.1
Formatted: English (United States)
regular transmittance

ratio of the regularly transmitted part of the (whole) transmitted flux to the incident flux Formatted: Adjust space between Latin and Asian text,

Adjust space between Asian text and numbers, Tab
stops: Not at 19.85 pt + 39.7 pt + 59.55 pt + 79.4 pt
3.2
+ 99.25 pt + 119.05 pt + 138.9 pt + 158.75 pt +
regular reflectance
178.6 pt + 198.45 pt
specular reflectance

ratio of the regularly reflected part of the (whole) reflected flux to the incident flux

Formatted: Hyperlink, English (United States)
Formatted: English (United States)
3.3
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absorptance
ratio of the absorbed radiant flux to the incident flux
3.4
scatter
scatterance
ratio of the scattered radiant flux to the incident flux
3.5
standard uncertainty
uncertainty of the result of a measurement expressed as a standard deviation
3.6
expanded uncertainty

quantity defining an interval about the result of a measurement that may be expected to encompass a

large fraction of the distribution of values that could reasonably be attributed to the measurand

4 Symbols and units
For the purposes of this document, the following symbols and units apply.
d thickness of the sample, expressed in millimetres
α absorptance
δ scatter
λ wavelength, expressed in micrometres
ρ reflectance
τ transmittance
5 Nomenclature
5.1 General
The optical materials covered by this document shall be identified as follows:
2 © ISO 2022 – All rights reserved
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ISO 11382:2022(E)
a) the name (see 5.2);
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b) the manufacturer reference (see 5.3);
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c) the material structure (optional) (see 5.4);
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d) the manufacturing process (see 5.5);
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e) a reference to this document, i.e. ISO 11382:2022:—.
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5.2 Name

Either the trademark or the generic name (e.g. germanium or sapphire), followed by reference to the

method of manufacture, shall be given
...

INTERNATIONAL ISO
STANDARD 11382
Second edition
Optics and photonics — Optical
materials and components —
Characterization of optical materials
used in the infrared spectral range
from 0,78 µm to 25 µm
Optique et photonique — Matériaux et composants optiques —
Caractérisation des matériaux optiques utilisés dans la bande
spectrale infrarouge de 0,78 µm à 25 µm
PROOF/ÉPREUVE
Reference number
ISO 11382:2022(E)
© ISO 2022
---------------------- Page: 1 ----------------------
ISO 11382:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE © ISO 2022 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 11382:2022(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Symbols and units............................................................................................................................................................................................... 2

5 Nomenclature .......................................................................................................................................................................................................... 2

5.1 General ........................................................................................................................................................................................................... 2

5.2 Name ................................................................................................................................................................................................................ 2

5.3 Manufacturer reference ................................................................................................................................................................. 3

5.4 Material structure ............................................................................................................................................................................... 3

5.5 Manufacturing process ................................................................................................................................................................... 3

5.6 Form of nomenclature ...................................................................................................................................................................... 3

6 Optical properties .............................................................................................................................................................................................. 3

6.1 General ........................................................................................................................................................................................................... 3

6.2 Transmittance ......................................................................................................................................................................................... 5

6.2.1 Specification to be provided .................................................................................................................................... 5

6.2.2 Temperature dependence ........................................................................................................................................... 6

6.3 Absorption coefficient ..................................................................................................................................................................... 6

6.3.1 General ........................................................................................................................................................................................ 6

6.3.2 Specification to be provided (to be consistent with 6.5.2) ........................................................... 6

6.4 Transmittance uniformity ........................................................................................................................................................... 6

6.4.1 General ........................................................................................................................................................................................ 6

6.4.2 Bubbles and inclusions .................................................................................................................................................. 6

6.4.3 Local variation of the manufacturing process ......................................................................................... 6

6.5 Refractive index ..................................................................................................................................................................................... 7

6.5.1 General ........................................................................................................................................................................................ 7

6.5.2 Specification reports to be provided ................................................................................................................ 7

6.6 Refractive index variation ............................................................................................................................................................ 7

6.7 Dependence of the refractive index on temperature ............................................................................................ 8

6.8 Optical homogeneity (homogeneity of refractive index) .................................................................................. 8

6.9 Birefringence ........................................................................................................................................................................................... 8

6.9.1 Materials with natural birefringence .............................................................................................................. 8

6.9.2 Stress birefringence ........................................................................................................................................................ 9

6.10 Photoelastic constant ....................................................................................................................................................................... 9

6.11 Dispersion ................................................................................................................................................................................................... 9

7 Other properties .................................................................................................................................................................................................. 9

7.1 General ........................................................................................................................................................................................................... 9

7.2 Specific gravity ....................................................................................................................................................................................... 9

7.3 Molecular mass ...................................................................................................................................................................................... 9

7.4 Thermal properties ............................................................................................................................................................................ 9

7.4.1 Thermal conductivity .................................................................................................................................................... 9

7.4.2 Thermal expansion ....................................................................................................................................................... 10

7.4.3 Specific heat ......................................................................................................................................................................... 10

7.4.4 Melting temperature and softening temperature ............................................................................. 10

7.5 Hardness ................................................................................................................................................................................................... 10

7.6 Elastic modulus ................................................................................................................................................................................... 10

7.7 Maximum dimensions ................................................................................................................................................................... 10

Bibliography .............................................................................................................................................................................................................................11

iii
© ISO 2022 – All rights reserved PROOF/ÉPREUVE
---------------------- Page: 3 ----------------------
ISO 11382:2022(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to

the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see

www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee

SC 3, Optical materials and components.

This second edition cancels and replaces the first edition (ISO 11382:2010), which has been technically

revised.
The main changes are as follows:
— update of Clause 2 and Bibliography;
— update of Table 1 and Table 2.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www.iso.org/members.html.
PROOF/ÉPREUVE © ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 11382:2022(E)
Introduction

Many standards for optical glass exist that are primarily used for the visible range, however, it is not

easy to apply these standards directly to infrared materials.

Often, the properties of infrared materials are known with less certainty than those used in the visible

range because the methods of measurements are different, incomplete or inaccurate.

© ISO 2022 – All rights reserved PROOF/ÉPREUVE
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 11382:2022(E)
Optics and photonics — Optical materials and components
— Characterization of optical materials used in the
infrared spectral range from 0,78 µm to 25 µm
1 Scope

This document provides guidelines for the description of data sheets for infrared materials. It specifies

the nomenclature and the properties of infrared materials which are reported on such data sheets.

These data sheets do not necessarily contain information on every property identified in this document.

This document also specifies the parameters needed to characterize optical materials intended for use

in the infrared spectral range from 0,78 µm to 25 µm and provides various methods to be used for

measuring these parameters.

This document is applicable only to materials used in the manufacture of passive optical components.

The properties of materials used in active applications (e.g. optoelectronics) are not taken into account.

Materials specified in this document can also transmit in other spectral domains (microwaves, visible

or ultraviolet).
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 10110-18, Optics and photonics — Preparation of drawings for optical elements and systems — Part

18: Stress birefringence, bubbles and inclusions, homogeneity, and striae
ISO 12123:2018, Optics and photonics — Specification of raw optical glass

ISO 15368, Optics and photonics — Measurement of reflectance of plane surfaces and transmittance of

plane parallel elements
ISO 80000-7, Quantities and units — Part 7: Light and radiation
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 12123, ISO 80000-7 and the

following apply .

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
regular transmittance
ratio of the regularly transmitted part of the (whole) transmitted flux to
...