ISO INTERNATIONAL STANDARD 9335 Second edition 2012-10-01 Optics and photonics Optical transfer function Principles and procedures of measurement Optique et photonique -Fonction de transfert optique - Principes et procédures de mesure Reference number ISO 9335:2012(E) LSO @ ISO 2012 IHS under itted without license from IHS Not for Resale ISO9335:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 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 ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2012 -All rights reserved or networking permitted without license from IHS Not for Resale ISO 9335:2012(E) Contents Page Foreword .iv Introduction 1 Scope. 2 Normative references 3 Terms and definitions. 4 Measuring equipment and environment 4.1 Generalaspects 4.2 Environment 4.3 Measuring equipment. 4.4 System components. 3 5 Measurement procedures 10 5.1 General 10 5.2 Setting the measuring conditions. 10 5.3 Additionalconsiderationsofmeasurement 11 5.4 Particular measuring conditions. 13 6 Corrections to measured data. 14 6.1 Normalization. 14 6.2 Correction of the frequency scale .14 6.3 Correction of the measured modulation. 14 6.4 Auxiliary imaging systems .. 15 7 Presentation of OTF data . .15 7.1 General. 15 7.2 Statement of identification and measuring conditions .15 7.3 GraphicalpresentationofOTFdata. 16 7.4 Numerical presentation .. 17 8 Accuracy checks.. .17 Annex A (informative)Examples of the presentation of OTF data .19 Bibliography 24 ili e with I thout license from IHS Not for Resale