ISO INTERNATIONAL STANDARD 19056-1 First edition 2015-09-15 Microscopes Definition and measurement of illumination properties - Part 1: Image brightness and uniformity in bright field microscopy Microscopes - Définition et mesurage des propriétés d'éclairage - Partie 1: Luminosité et uniformité de I'image en microscopie a champ clair Reference number IS0 19056-1:2015(E) SO International Organization for Standardization @ IS0 2015 IS0 19056-1:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,PublishedinSwitzerland All rights reserved. Unless otherwise specified, 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 or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel.+41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Intenationaibr PrganizationforStandardization Not for Resale, 2015/11/11 08:57:11 etworking permitted without license from IHS IS0 19056-1:2015(E) Contents Page Foreword ..iv 1 Scope 2 Measurands. 2.1 General. 1 2.2 Brightness 2.3 Uniformity .2 3 Measurement procedure. .2 3.1 General. .2 3.2 Diaphragm settings. 2 3.3 Brightness (illuminance and irradiance) .2 3.4 Uniformity. .3 3.5 Spectral information .3 4 Information provided to the user .3 Bibliography 5 ntemaonalganizatin5All rights reserved iii see=Zhejiang Institute of Standardization 5956617 vided by IHS under ed without license from IHS Not for Resale, 2015/11/11 08:57:11