Camera filter

A filter for a camera, comprises an ultraviolet ray absorbing filter member including a substrate (1) and an evaporation film (2) which transmits the blue light as well as the green light and sharply cuts one portion of the red light from 640 nm to 700 nm in the range of a wavelength showing a trans...

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Bibliographic Details
Main Authors NAKAJIMA, YUJI, CHIKANO, MITSUO
Format Patent
LanguageEnglish
French
German
Published 25.04.1984
Subjects
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
ELECTROGRAPHY
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:A filter for a camera, comprises an ultraviolet ray absorbing filter member including a substrate (1) and an evaporation film (2) which transmits the blue light as well as the green light and sharply cuts one portion of the red light from 640 nm to 700 nm in the range of a wavelength showing a transmission factor of 50%. The evaporation film is formed on one surface of the substrate and the filter is fitted to a frame (4) which is attachable to or detachable from said camera.
Bibliography:Application Number: EP19830305385