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. 16, 1988
Filed:
Jan. 29, 1986
Applicant:
Inventor:
Yoshiaki Morizumi, Shiga, JP;
Assignee:
Dainippon Screen Mfg. Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2502 / ; 250578 ;
Abstract
A picture reproduction apparatus for recording reproduced picture images of an original picture in which picture information on the original picture is projected onto a photoelectric converting element(s) such as a CCD line sensor(s) etc. through a focusing optical system, and according to an output signal therefrom unevenness of a light quantity of a light flux projected to the photoelectric converting element(s) is corrected to obtain a reproduction picture of uniform quality.
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Morizumi, Yoshiaki. (1988). Apparatus for correcting unevenness of light quantity in an optical (U.S. Patent No. 4725729). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4725729
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile