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Publication of CS162841B3publicationCriticalpatent/CS162841B3/cs
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B27/00—Photographic printing apparatus
G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
G03B27/52—Details
G03B27/522—Projection optics
Landscapes
Physics & Mathematics
(AREA)
Optics & Photonics
(AREA)
General Physics & Mathematics
(AREA)
Projection-Type Copiers In General
(AREA)
Light Sources And Details Of Projection-Printing Devices
(AREA)