SIST EN ISO 15902:2020

SLOVENSKI STANDARD
SIST EN ISO 15902:2020
01-marec-2020
Nadomešča:
SIST EN ISO 15902:2005
Optika in fotonska tehnologija - Difraktivna optika - Slovar (ISO 15902:2019)
Optics and photonics - Diffractive optics - Vocabulary (ISO 15902:2019)
Optik und Photonik - Diffraktive Optik - Begriffe (ISO 15902:2019)
Optique et photonique - Optique diffractive - Vocabulaire (ISO 15902:2019)
Ta slovenski standard je istoveten z: EN ISO 15902:2020
ICS:
01.040.31 Elektronika (Slovarji) Electronics (Vocabularies)
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
SIST EN ISO 15902:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 15902:2020

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SIST EN ISO 15902:2020


EN ISO 15902
EUROPEAN STANDARD

NORME EUROPÉENNE

January 2020
EUROPÄISCHE NORM
ICS 01.040.31; 31.260 Supersedes EN ISO 15902:2005
English Version

Optics and photonics - Diffractive optics - Vocabulary (ISO
15902:2019)
Optique et photonique - Optique diffractive - Optik und Photonik - Diffraktive Optik - Begriffe (ISO
Vocabulaire (ISO 15902:2019) 15902:2019)
This European Standard was approved by CEN on 20 December 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15902:2020 E
worldwide for CEN national Members.

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SIST EN ISO 15902:2020
EN ISO 15902:2020 (E)
Contents Page
European foreword . 3

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SIST EN ISO 15902:2020
EN ISO 15902:2020 (E)
European foreword
This document (EN ISO 15902:2020) has been prepared by Technical Committee ISO/TC 172 "Optics
and photonics" in collaboration with Technical Committee CEN/TC 123 “Lasers and photonics” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by July 2020, and conflicting national standards shall be
withdrawn at the latest by July 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 15902:2005.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 15902:2019 has been approved by CEN as EN ISO 15902:2020 without any modification.

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SIST EN ISO 15902:2020

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SIST EN ISO 15902:2020
INTERNATIONAL ISO
STANDARD 15902
Second edition
2019-12
Optics and photonics — Diffractive
optics — Vocabulary
Optique et photonique — Optique diffractive — Vocabulaire
Reference number
ISO 15902:2019(E)
©
ISO 2019

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SIST EN ISO 15902:2020
ISO 15902:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

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ISO 15902:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Diffractive optics technologies . 1
3.2 Diffractive optical elements and their types . 1
3.3 Structure of diffractive optical elements . 2
3.3.1 General structure . 2
3.3.2 Phase structure . 2
3.3.3 Periodic structure . 4
3.3.4 Design of diffractive optical elements . 6
3.4 Properties of diffractive optical elements . 6
3.4.1 General properties. 6
3.4.2 Classification of diffraction . 7
3.4.3 Dispersion properties . 8
3.4.4 Polarization . 9
3.5 Applications .10
4 Symbols and abbreviated terms .11
Index .13
© ISO 2019 – All rights reserved iii

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ISO 15902:2019(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 9, Laser and electro-optical systems.
This second edition cancels and replaces the first edition (ISO 15902:2004), of which it constitutes a
minor revision. It also incorporates the Technical Corrigendum ISO 15902:2004/Cor 1:2005.
The changes compared to the previous edition are as follows:
— in 3.3.3.4, an explanation on the factor has been added in a note to entry;
— in 3.4.3.4, the sign has been corrected;
— other editorial changes have been made.
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.
iv © ISO 2019 – All rights reserved

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ISO 15902:2019(E)

Introduction
The term diffractive optical element is used for those optical elements which convert an input wavefront
to a predetermined output wavefront (or wavefronts) in free space by means of the phenomenon of
diffraction. There has been a rapid increase in the use of diffractive optical elements, especially in the
field of optical data storage, and they are essential components in optical and electro-optical systems.
They are used in a wide variety of applications.
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SIST EN ISO 15902:2020
INTERNATIONAL STANDARD ISO 15902:2019(E)
Optics and photonics — Diffractive optics — Vocabulary
1 Scope
This document defines the basic terms for diffractive optical elements for free space propagation. The
purpose of this document is to provide an agreed-upon common terminology that reduces ambiguity
and misunderstanding and thereby aid in the development of the field of diffractive optics.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1 Diffractive optics technologies
3.1.1
diffractive optics
optical technology based on the phenomenon of the diffraction of optical radiation
3.1.2
binary optics
diffractive optics technology whose optical components have a quantized surface structure in height
Note 1 to entry: The word binary originally means a two-step structure in cross section, however, a staircase
structure in cross section is usually referred to as binary as well, regardless of the number of the steps. This
incorrect wording originates from the fact that these structures are fabricated using a mask lithography
technique.
Note 2 to entry: See 3.3.2.8 and 3.3.2.9.
3.1.3
holographic optics
diffractive optics technology that uses holograms as optical elements for transforming an incident
wavefront into a specific wavefront or wavefronts
3.2 Diffractive optical elements and their types
3.2.1
diffractive optical element
DOE
optical element for which the phenomenon of the diffraction of optical radiation is the operating
principle, usually characterized in terms of its periodic spatial structure
3.2.2
amplitude diffractive optical element
optical element which utilizes the diffraction created by its periodic spatial amplitude modulation
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3.2.3
phase diffractive optical element
optical element which utilizes the diffraction created by its periodic spatial phase modulation
3.2.4
transmission diffractive optical element
diffractive optical element that operates with transmitted optical radiation
3.2.5
reflection diffractive optical element
diffractive optical element that operates with reflected optical radiation
3.2.6
active diffractive optical element
diffractive optical element whose diffraction characteristics can be dynamically changed
3.2.7
holographic optical element
HOE
diffractive optical element fabricated with an interferometric method
3.2.8
computer-generated diffractive optical element
computer-generated hologram (CGH)
diffractive optical element which is computer-designed and fabricated under computer control
Note 1 to entry: A computer-generated diffractive optical element is generally fabricated using a mechanical
method or by lithography, using optical radiation waves (including laser beams), electron beams or ion beams,
and is often referred to as a “computer-generated hologram (CGH)”.
3.2.9
binary optical element
BOE
phase-diffractive optical element having a binary-level or quantized multi-level surface-relief structure
Note 1 to entry: See Note 1 to entry in 3.1.2.
3.3 Structure of diffractive optical elements
3.3.1 General structure
3.3.1.1
substrate for diffractive optical elements
basic body of the diffractive optical element
Note 1 to entry: It may support the element's periodic structure on its surface, or it may contain that periodic
structure within itself.
3.3.1.2
grating
periodic spatial structure for optical use
3.3.2 Phase structure
3.3.2.1
phase profile
phase distribution of a diffractive optical element, which is added to incident optical radiation
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ISO 15902:2019(E)

3.3.2.2
surface relief diffractive optical element
optical element whose diffractive property is created by a periodic relief pattern deposited on or
corrugated in the substrate
3.3.2.3
Q-factor
Q-value
for a periodic structure with a sinusoidal refractive-index profile, this is given by
2πλT
Q=
2
n Λ
av
Note 1 to entry: The value is used to categorize gratings as either thick or thin. It should be noted that it is defined
only for sinusoidal refractive index profile.
3.3.2.4
thin diffractive optical element
diffractive optical element which produces Raman-Nath d
...