ISO INTERNATIONAL STANDARD 11315-1 First edition 1997-11-15 Photography Projection in indoor rooms - Part 1: Screen illumination test for still projectors Photographie - Projection en salles - Partie 1: Essai de luminosité de I'écran pour projecteurs fixes ISO Reference number ISO 11315-1:1997(E) No r HS under ted without license from IHS Not for Resale ISO 11315-1:1997(E) Foreword ISO (theInternational Organizationfor Standardization)is a worldwide federationof nationalstandardsbodies(iSOmemberbodies).Theworkof 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 (lEC)onallmatters of electrotechnicalstandardization Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 11315-1 was prepared by Technical Committee ISO/TC 42, Photography. It cancels and replaces IsO 8341:1989, of which it constitutes a technical revision. ISO11315 consists of the following parts, under the generaltitle 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: Reflecting projection screens Classificationand 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 microfilm, without permission in writing from the publisher. nternational Organizationfor Standardization 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 Copyright Intern ational Organization for Standardizatior Not for Resale INTERNATIONAL STANDARD @ ISO ISO 11315-1:1997(E) Photography Projection in indoor rooms Part 1: Screen illumination test for still projectors 1 Scope This part of IsO 11315 specifies a laboratory measuring method for determining the utilised flux of the projector and the uniformity of screen illuminance in darkened projection rooms for all types of purely optical still projection. A standardized uniform light-measuring system allows comparison of screen illuminance 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 isO 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. CIE No. 15.2:1986, Colorimetry (2nd edition). CIE No. 17.4:1987, International Lighting Vocabulary [Same edition as IEC 50(845): Internationa! Electrotechnica! Vocabulary, Chapter 845: Lighting.l CIE No. 18.2:1983,The Basis of Physical Photometry. CIE No. 69:1987, Methods of Characterizing IlluminanceMeters and Luminance Meters Performance, Characteristics and Specifications. Copyright Interna nal Organization for Standardization Not for Resale