ISO INTERNATIONAL STANDARD 18221 First edition 2016-07-01 Microscopes Microscopes with digital imaging displays - Information provided to the user regarding imaging performance Microscopes-Microscopes avec écrans d'affichage numérique- Informations fournies a I'utilisateur concernant la performance d'affichage Reference number ISO 18221:2016(E) ISO International Organization for Standardization ZHEJIANG INSTOFSTANDARDIZATION C15956617 @ISO2016 vided by IHS underI IS0 18221:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinair PrganizationforStandardization nsee-ZHEJIANG INSTOFSTANDARDIzAoISQ06-All rights reserVed etworking permitted without license from IHS IS0 18221:2016(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references ..1 3 Terms and definitions 4 Symbols and abbreviated terms ..2 5 Magnification ..3 5.1 Optical magnification, MTOT PROJ .3 5.2 Display magnification, Mis. ..3 5.3 Visual display magnification, Mpis vIS .3 6 Resolving power limit .3 6.1 Optical resolving power limit, RLoPT 6.2 Sensor resolving power limit, RLsEN .4 6.3 Display resolving power limit, RLDIs. 6.4 System resolving power limit, RLsys .4 7 Useful range of magnification .5 7.1 Useful range of viewing distance ..5 7.2 Useful range of visual magnification .5 7.3 Empty magnification. .6 8 Object field .6 8.1 Objectfield limited by the sensor .6 8.2 Object field limited by the display .6 8.3 Object field of the microscopy system .1 9 Depth of field 1 10 Information to be provided to the user by manufacturers 10.1 Generalinformation ..8 10.2 Imaging performance data ..8 Annex A (informative) Examples for information to be provided to the user ..9 Bibliography .13 iii =ZHEJIANG INSTOFSTANDARDIZATION C15956617 vided by IHS under ithout license from IHS