IEC IEC62629-62-12 Edition 1.0 2025-06 INTERNATIONAL STANDARD 3Ddisplays- Part 62-12: Measurement methods for virtual-image type - Image quality IEC 62629-62-12:2025-06(en) ICS 31.120; 31.260 ISBN 978-2-8327-0391-5 THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright@2025IEC,Geneva,Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Secretariat Tel.: +41 22 919 02 11 3. rue de Varembé [email protected] www.iec.ch CH-1211 Geneva 20 Switzerland About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes About IECpublications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest IECpublicationssearch IEC Products & Services Portal- products.iec.ch webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the The advanced search enables to find IEC publications by publications previews, graphical symbols and the glossary. ofcriteria (reference number, text, With a subscription you willalways have access to up to a variety technical committee,_..),It also gives information on date content tailored to your needs. projects, replaced and withdrawn publications. Electropedia - www.electropedia.org IEc Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology. Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and and French, with equivalent terms in 25 additional languages. once a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IEcCustomerServiceCentre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the C Customer Service Centre: [email protected]. Warning! Make sure that you obtained this publication from an authorized distributor. IEC62629-62-12:2025IEC2025 -2 - CONTENTS FOREWORD. Scope.. .6 2 Normativereferences.. .6 3 Terms, definitions and abbreviatedterms ..6 3.1 Terms and definitions. 3.2 Abbreviated terms... 4 Light measuring device (LMD).. 8 5 Measurement method of uniform-illuminated-flat-background effect on 3D virtual image.. 5.1 General... 5.2 Measurement configuration of uniform-illuminated-flat-background effect on 3D virtual image.... 5.3 Illumination for uniform-illuminated-flat-background conditions . ..10 5.4 Measurement of contrast and chromaticity of a 3D virtual image against different uniform-illuminated-flat-backgrounds... 5.4.1 General.. 11 5.4.2 Conditions 11 5.4.3 Procedures. .13 5.4.4 Reports.. 15 Measurement method for ghost image. 6 16 6.1 Measuring configuration for positionestimation.... ...16 6.2 Conditions.. .17 6.3 Procedures .18 6.4 Reports... Measurement methods for binocular misalignment... ..19 7.1 General. ..19 7.2 Conditions. 7.3 Procedures .... 7.4 Reports.. AnnexA(informative)Measurement examples .25 A.1 Measurement example for ghost image.... A.2 Measurement example forbinocular misalignment ..26 Bibliography ..28 Figure 1-Measuring configuration for evaluating uniform-illuminated-flat-background effect on image quality property of a 3D virtual image...... Figure 2 - Points for non-uniformity measurement on uniform-illuminated-flat- background..... Figure 3- Test images for measuring contrast and chromaticity properties affected by uniform-illuminated-flat-background change on 3D virtual image.... Figure 4-Measuring condition for