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:
Jan. 25, 1977
Filed:
Jun. 24, 1974
Applicant:
Inventor:
Seymour Ellin, Chestnut Hill, MA (US);
Assignee:
Polaroid Corporation, Cambridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354128 ; 240-13 ; 354158 ;
Abstract
A flash exposure system for use with a photographic camera of a variety which automatically carries out an involved photographic cycle upon the momentary depression of a start button. The system is particularly adapted to use with a linear flash array which is either replaced or reversed in its mounting upon the camera upon the expenditure of all lamps within an operational face thereof. The exposure system detects the expenditure of all lamps within an operative face of an array and inhibits the performance of an automatic cycle. Simultaneously, a perceptible warning signal apprises the operator of the expended status of the flash array.