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.

Date of Patent:
Aug. 12, 1980

Filed:

Aug. 21, 1978
Applicant:
Inventor:

Chan K Yan, Hong Kong, HK;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
354 21 ; 352 / ; 354273 ;
Abstract

A camera for receiving a cartridge containing relatively high or low speed films has an adjustable aperture mechanism for regulating the amount of light exposing the film, and a manual control mechanism operatively associated therewith and movable between 'sunny', 'cloudy' and 'flash' settings to provide respectively 'small', 'intermediate' and 'large' apertures for high speed film. The cartridge includes structural means thereon of a predetermined configuration in accordance with the speed of the film contained therein. An automatic control mechanism operatively associated with the adjustable aperture mechanism senses the structural means on the cartridge to increase the 'small' aperture to the 'intermediate' aperture and the 'intermediate' aperture to the 'large' aperture for low speed film without changing the settings of the manual control mechanism.


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