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:
Feb. 23, 1982
Filed:
Feb. 09, 1981
John J Bundschuh, Penfield, NY (US);
Gerald J Kosarko, Pavilion, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A camera, operable in flash and ambient exposure modes, has adjustable lens apparatus useful for close-up and normal range photography. A photoconductively controlled electromagnet, which is energized in accordance with the intensity of ambient light, controls an apertured blade to adjust an exposure aperture. A mechanism is responsive to adjustment of the lens apparatus for a close-up photograph and overrides the electromagnet. This causes the apertured blade to be moved automatically to its minimum aperture position, independently of the exposure mode, when the camera is set for close-up photography, to enhance depth of field.