The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1998
Filed:
May. 27, 1997
Shigeo Mizukawa, Omiya, JP;
Fuji Photo Optical Co., Ltd., Omiya, JP;
Abstract
A fixed focus camera is arranged to shorten the minimum object distance for shooting by moving a lens section to a hyperfocal distance position. The camera is arranged to mount the objective lens system and the diaphragm member on the same tube, the lens system being formed to provide fixed focus, the diaphragm member being provided with a rotating member which is rotated to reduce light from the lens system, and to connect the tube to the body with a helicoid screw so that the rotation of the tube opens and closes the diaphragm member, and moves the lens system back and forth. Then, when the diaphragm opening is reduced by the rotations of the tube, the objective lens system is moved forward to a position where the subject is captured at a hyperfocal distance. This enables it to perform shooting at a hyperfocal distance, whereby the minimum object distance for shooting can be shortened when the diaphragm opening is reduced.