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.:

US 6766107 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 20, 2004

Filed:

Sep. 14, 2001
Applicant:
Inventor:

Shigeki Takahara, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 1/702 ; G03B 1/503 ;
U.S. Cl.
CPC ...
G03B 1/702 ; G03B 1/503 ;
Abstract

A lens-fitted photo film unit is provided with a stop blade that is switched over between a small aperture position and a large aperture position depending upon a subject brightness measured through a photometric circuit that is activated when a shutter button is pressed. The film unit has an f-number of not more than f/8.0 when the stop blade is in the large aperture position, or an f-number of not less than f/14 when the stop blade is in the small aperture position. The film unit is also provided with a flash light control circuit in connection to a flash device. The flash light control circuit measures a light amount reflected from a subject while a flash light is projected from the flash device toward the subject, to stop the flash device from projecting the flash light when the measured light amount reaches a predetermined value.


Find Patent Forward Citations

Takahara, Shigeki. (2004). Lens-fitted photo film unit with stop changing device (U.S. Patent No. 6766107). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6766107

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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