Optical apparatus

PROBLEM TO BE SOLVED: To provide an optical apparatus capable of preventing deterioration of image quality by an ND filter. SOLUTION: The optical apparatus includes diaphragms 9a and 9b having apertures variable in size, the ND filter 9f movable with respect to the apertures of the diaphragms, an ac...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	UMEZU TAKUJI, ICHINOSE HARUNOBU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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