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Patent Searching and Data


Title:
PHOTOGRAPHING EQUIPMENT
Document Type and Number:
Japanese Patent JP2003015187
Kind Code:
A
Abstract:

To provide photographing equipment by which the need of moving a diaphragm and a shutter blade to an optically inappropriate position is eliminated without deteriorating moldability even though the aperture part of a photographic lens holding member is made smaller.

In the photographing equipment provided with a photographic lens whose final surface is formed to be convex, the photographic lens holding member which is molded of a resin by holding the photographic lens and in which the aperture part to make a luminous flux transmitted through the photographic lens pass through is disposed closely to the final surface and a diaphragm changeover member having several diaphragm holes to regulate the luminous flux passing through the aperture part and performing diaphragm changeover by inserting/pulling the diaphragm hole from a direction othogonal to the optical axis of the photographic lens, a projected part is provided in a peripheral part on the side of the diaphragm changeover member at the aperture part of the photographic lens holding member, and a recessed part to freely fit in the projected part is provided at a peripheral part on the side of the photographic lens holding member at the diaphragm hole of the diaphragm changeover member.


Inventors:
MIZOGUCHI NAGAMASA
TAKABA TETSUSHI
Application Number:
JP2001203313A
Publication Date:
January 15, 2003
Filing Date:
July 04, 2001
Export Citation:
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Assignee:
KONISHIROKU PHOTO IND
International Classes:
G03C3/00; G02B7/02; G03B9/02; G03B9/04; G03B9/07; G03B9/26; G03B17/02; G03B17/04; (IPC1-7): G03B9/04; G02B7/02; G03B9/02; G03B9/07; G03B9/26; G03B17/02; G03B17/04; G03C3/00