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:
Dec. 24, 1991
Filed:
Oct. 10, 1990
Applicant:
Inventors:
Hitoshi Nakai, Nagoya, JP;
Yasushi Okabe, Nagoya, JP;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385115 ; 358901 ; 385147 ;
Abstract
An optical scanning device includes an optical waveguide array through which image information light, scanned by an optical scanning means, is successively introduced and carried. A means for correcting the intensity of light is provided to correct the intensity of the image information light. This correction is performed in correspondence with variations in light transmission efficiency in the optical waveguide. The intensity of light beams on a photosensitive material is, as a result, rendered uniform, these light beams being emitted from the optical waveguide array.