PICTURE SIZE REGULATING DEVICE

PURPOSE:To obtain the exposed picture of the set size regardless of a change in a zooming position, without damaging the surface of a film by adopting a constitution that the top end parts of the pawl parts of masking members are abutted on the surface of the film and separated therefrom at the time...

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Bibliographic Details
Main Authors HIRAI MASAYOSHI, KIMURA TSUTOMU
Format Patent
LanguageEnglish
Published 17.01.1995
Edition6
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
PHOTOGRAPHY
PHYSICS
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Summary:PURPOSE:To obtain the exposed picture of the set size regardless of a change in a zooming position, without damaging the surface of a film by adopting a constitution that the top end parts of the pawl parts of masking members are abutted on the surface of the film and separated therefrom at the time of feeding the film, etc. CONSTITUTION:The top end parts 32c and 32d of the pawl parts of the masking members 4a and 4b are bent so as to abut on the surface of the film 1, so that light from a zoom lens system regulated by the top ends 32c and 32d of the pawl parts is prevented from passing around inside than the top end parts 32c and 32d of the pawl parts. The pawl parts 32a and 32b of both masking members 4a and 4b approach and separate each other in accordance with the changeover of an exposed picture size. When the pawl parts 32a and 32b are set in each size position, the top end parts 32c and 32d are abutted on the surface of the film and moreover, in the feeding of the film, etc., the pawl parts 32a and 32b are turned up to their fixed positions centering pins 39a and 39b and the top end parts 32c and 32d are separated from the surface of the film.
Bibliography:Application Number: JP19930149129