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:
May. 17, 1988
Filed:
Mar. 06, 1987
Tetsuo Miyasaka, Hachioji, JP;
Olympus Optical Company, Ltd., Tokyo, JP;
Abstract
When establishing a program exposure response of a camera, an EV value is calculated from the brightness of an object being photographed, a film speed and the like, and a programmed calculation is made on the basis of a preset program response and the EV value to determine an exposure period and a diaphragm aperture in the absence of a program shift input. However, in the presence of a program shift operation, the relationship between an exposure period and a diaphragm aperture is shifted through a given number of steps, and a new program response is established so that the exposure period and the diaphragm aperture varies according to an EV value from their shifted value, thus determining an exposure control value.