ISO INTERNATIONAL STANDARD 10604 First edition 1993-02-01 Road vehicles - Measurement eguipment for orientation of headlamp luminous beams Véhicules routiers -- Equipement de mesure de I'orientation des faisceaux lumineuxémisparlesprojecteurs Reference number iSO10604:1993(E) Not for Resale IS010604:1993(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. ISO/TC 22, Road vehicles, Sub-Committee SC 8, Lighting and signalling. Annex A of this International Standard is for information only. ISO1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or mission in writing from the publisher. International Organization for Standardization Case Postale 56·CH-1211Geneve 20·Switzerland Printed in Switzerland ii national Organization for Standardization Not for Resale INTERNATIONAL STANDARD ISO10604:1993(E) Road vehicles -- Measurement equipment for orientation of headlamp luminous beams Scope Iso 1176:1990, Road vehicles - Masses - Vocabu- laryandcodes. ThisInternationalStandardspecifiesthedimensional mechanical and optical quality criteria for eguipment to measure or to verify the orientation of the luminous 3 Definitions beamsemittedbytheheadlampsinstalled on road motor vehicles excluding mopeds and motorcycles. For the purposes of this International Standard, the following definitions apply. The equipment also allows evaluation of the quality of the luminous beams by visual means. Quality cri- 3.1 test area floor: Delimited area on which the teria for photometric devices are given in clause 12 vehicles are placed to measure or to verify the orien- and enable a more objective evaluation to be carried tation of the luminous beams emitted by their head- out. lamps. This International Standard lays down the require- 3.2 reference plane: Plane characterizing the test mentsfor area floor. a) the floor on which the vehicles are placed; 3.3 vehicle direction: Direction parallel to the refer- b) the vehicle preparation; enceplaneandtothemedianlongitudinalplaneofthe vehicle standing on the test area floor. c) equipment using a distant screen; 3.4 headlamp: Lighting device able to emit at least d) optical equipment with installation and operating a main beam, a dipped beam or a front fog beam but instructions; with a single aiming even if different beams can be emitted. e) photometric devices (see clause 12). 3.5 beam axis: Reference axis according to beam patternrequirements. NOTE1 In the case of reciprocally incorporated lamps, thebeamaxesofthebeamsemittedbythesameheadlamp may be different. 2 Normative reference 3.6 aiming screen: Screen on which the headlamp The following standard contains provisions which, beam pattern can be observed. through reference in this text, constitute provisions of thisInternational Standard.At the time ofpubli- 3.7 optical block: Device focussing the headlamp cation, the edition indicated was valid. All standards beam on an aiming screen and allowing a vertical aresubject torevision,and partiesto agreements displacement of the aiming screen or of the beam based on this International Standard are encouraged image, calibrated on an inclination scale. toinvestigatethepossibilityofapplyingthemostre cent edition of the standard indicated below. Mem- 3.8 optical apparatus: Optical block mounted on a bers of IEC and ISO ma