ISO INTERNATIONAL STANDARD 9345 First edition 2019-03 Microscopes Interfacing dimensions for imaging components Microscopes-Dimensions d'interfacage pour composants d'imagerie Referencenumber IS09345:2019(E) ISO IS02019 IS09345:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below orIso's memberbody in the countryof therequester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax:+4122749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019- All rights reserved IS0 9345:2019(E) Contents Page Foreword ..iv 1 Scope. .1 2 Normativereferences .1 3 Termsanddefinitions ..1 4 Requirements .2 4.1 Nominal dimensions and tolerances of main imaging components .2 4.2 Nominal dimensions and tolerances of connecting screw threads of objective and nosepiece .5 4.3 Nominal dimensions and tolerances on diameters of eyepieces and viewing tubes 9 5 Marking ..10 AnnexA (informative)Examplesofvalueswithinfinity-corrected imagingsysteminuse ..11 Annex B (informative) Examples ofparfocalizing distances as function of cover glass thickness...12 AnnexC (informative)Recommendations forOEM-use ofobjectives and tube lenses ..13 Bibliography .14 @IS0 2019-All rights reserved iii