ISO 14490-2-2005 Optics and optical instruments - Test methods for telescopic systems - Part 2 Test methods for binocular systems《光学和光学仪器 望远镜系统的试验方法 第2部分 双目镜系统的.pdf
《ISO 14490-2-2005 Optics and optical instruments - Test methods for telescopic systems - Part 2 Test methods for binocular systems《光学和光学仪器 望远镜系统的试验方法 第2部分 双目镜系统的.pdf》由会员分享,可在线阅读,更多相关《ISO 14490-2-2005 Optics and optical instruments - Test methods for telescopic systems - Part 2 Test methods for binocular systems《光学和光学仪器 望远镜系统的试验方法 第2部分 双目镜系统的.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、 Reference number ISO 14490-2:2005(E) ISO 2005INTERNATIONAL STANDARD ISO 14490-2 First edition 2005-11-01 Optics and optical instruments Test methods for telescopic systems Part 2: Test methods for binocular systems Optique et instruments doptique Mthodes dessai pour systmes tlescopiques Partie 2: M
2、thodes dessai pour systmes binoculaires ISO 14490-2:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the
3、 computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to
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5、m the Central Secretariat at the address given below. ISO 2005 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 ei
6、ther ISO at the address below or ISOs 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 copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2005 All rights reservedISO 14490-2:2005(E) I
7、SO 2005 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body inter
8、ested 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
9、 Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the te
10、chnical 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IS
11、O shall not be held responsible for identifying any or all such patent rights. ISO 14490-2 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 4, Telescopic systems. ISO 14490 consists of the following parts, under the general title Optics and optical instruments Te
12、st methods for telescopic systems: Part 1: Test methods for basic characteristics Part 2: Test methods for binocular systems Part 3: Test methods for telescopic sights Part 4: Test methods for astronomical telescopes Part 5: Test methods for transmittance Part 6: Test methods for veiling glare index
13、 Part 7: Test methods for limit of resolution The following part is under preparation: Part 8: Test methods for night-vision devices INTERNATIONAL STANDARD ISO 14490-2:2005(E) ISO 2005 All rights reserved 1 Optics and optical instruments Test methods for telescopic systems Part 2: Test methods for b
14、inocular systems 1 Scope This part of ISO 14490 is applicable to binocular telescopic systems and specifies the test methods for determination of the following characteristics: non-parallelism of the axes of bundles of rays emergent from the eyepieces; interpupillary distance; relative difference in
15、 magnification; focusing difference between telescopes of binocular systems. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the refer
16、enced document (including any amendments) applies. ISO 14132-1:2002, Optics and optical instruments Vocabulary for telescopic systems Part 1: General terms and alphabetical indexes of terms in ISO 14132 ISO 14132-2:2002, Optics and optical instruments Vocabulary for telescopic systems Part 2: Terms
17、for binoculars, monoculars and spotting scopes ISO 14490-1:2005, Optics and optical instruments Test methods for telescopic systems Part 1: Test methods for basic characteristics 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 14132-1 and ISO 14132-2
18、 apply. 4 Measurement of non-parallelism of axes 4.1 General The optical axes of both telescopes of the instrument shall be parallel so as to ensure normal binocular vision during observation through the instrument. The acceptable degree of non-parallelism of optical axes of the telescopes is based
19、on the physiological properties of the human eye. ISO 14490-2:2005(E) 2 ISO 2005 All rights reservedThe measurement of the non-parallelism of axes shall be carried out at the following interpupillary distances: 60 mm, 65 mm, 70 mm. 4.2 Test equipment 4.2.1 The measurements should be made by means of
20、 the test arrangement shown in Figure 1. 4.2.2 The visual axes of the collimators and measuring telescopes shall be parallel. The deviation from parallelism should not exceed 20 of arc. It is permissible to use a single collimator if the diameter of the collimator lens is at least 160 mm. Key 1 ligh
21、t source 2 condenser 3 filter (approx. 0,55 m) 4 diffusing plate 5 reticle 6 collimator lens 7 test specimen with deviation “divergence” 8 measuring telescope 9 scale Figure 1 Test arrangement for measuring non-parallelism of axes of bundles emergent from the eyepieces in binocular instruments 4.2.3
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