
Audiovisual Systems (photography) - Slide Projectors And Filmstrip Projectors - Illumination Test
出版:American National Standards Institute

專家解讀視頻
Defines a measuring method for determining the useful light output of the projector and the uniformity of screen illuminance.
REVISION AND REDESIGNATION OF ANSI PH7.201-1983 (same as ANSI/ISO 8341-1989)
ISO 8341 : 1989 - Identical
ISO 8341 : 1989 - Identical
ISO 8341:1989 - Identical