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:
Oct. 12, 1976

Filed:

Jan. 27, 1975
Applicant:
Inventor:

Takaji Kurita, Kawachinagano, JA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 11 ; 355 14 ; 355 16 ; 355 66 ; 355 67 ;
Abstract

An exposure control device to be incorporated in an electrophotographic copying apparatus of the full frame exposure type with a moving photoreceptor, in which device a lens for projecting a light image of an original placed on a stationary platform onto the moving photoreceptor is adapted, during the flashing period of flash lamps for illuminating the original, to move in the same direction as the photoreceptor at a rate 1/m+1 times the moving rate of the photoreceptor for full frame exposure, by which arrangement, not only sufficient duration of flashing time of the flash lamps is available in high speed copying with consequent long life of the flash lamps, but definite, clear copies with high image resolution can be obtained.


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Kurita, Takaji. (1976). Exposure control device (U.S. Patent No. 3985438). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3985438

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