ISO INTERNATIONAL STANDARD 11315-2 First edition 1997-11-15 Photography Projection in indoor rooms Part 2: Screen luminance test for still and video projection Photographie Projection en salles - Partie 2: Essai de luminance de I'écran pour projection fixe et vidéo Tso Reference number ISO 11315-2:1997(E) py IHS under ted without license from IHS Not for Resale ISO 11315-2:1997(E) Foreword ISO (the International Organization for Standardization) is a worldwide preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which atechnicalcommitteehasbeenestablishedhastherighttoberepresented 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. Draft International Standards adopted by the technical committees are Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 11315-2 was prepared by Technical Committee ISO/TC 42, Photography. IsO 11315 consists of the following parts, under the general title Photography Projection in indoor rooms: Part 1: Screen illumination test for still projectors Part 2: Screen luminance test for still and video projection Part 3: Projection reflecting screens Part 4:Reflectingprojection screens Classification and measurement of reflected screen luminance levels and sound attenuation Annexes A and B of this part of ISO 11315 are for information only. @ISO1997 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 the publisher. International OrganizationforStandardization Case postale 56 · CH-1211 Geneve 20 · Switzerland Internet [email protected] X.400 C=ch; a=400net; p=iso; 0=isocs; S=central Printed in Switzerland Not for Resale ISO 11315-2:1997(E) INTERNATIONAL STANDARD @ISO Photography Projection in indoor rooms Part 2: Screen luminance test for still and video projection 1 Scope This part of isO 11315 specifies the measurement of screen luminance level, as seen by a (seated) viewer for all types of purely optical still projection in darkened projection rooms. Since the optical characteristics of the surface of this screen have a direct bearing on luminance, the screen shall be considered an integral part of the projection system for this part of isO 11315. A standardized light-measuring system allows comparison of screen luminance values for different projection systems used alternately in practical use. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of 11315. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of isO 11315 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 2910:1990 Cinematography-Screen luminance forthe projection of motion- picture prints in indoor theatres and review rooms. ISQ 11315-1:1997, Photography-Projectioninindoorrooms-Part1:Screen illumination test for still projectors. CIE No. 15.2:1986, Colorimetry (2nd edition). CIE No. 69:1987, MethodsofCharacterizing lluminanceMetersand Luminance Meters - Performance, Characteristics and Specifications. Copyright Intern nal Organization for Standardization Not for Resale