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:
May. 08, 1984
Filed:
Feb. 26, 1982
Applicant:
Inventor:
Yu Yamada, Kokubunji, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
355 51 ; 355 57 ;
Abstract
An optical system for scanning a surface to be scanned in a slit-like form includes an image forming optical system for forming the image of the surface to be scanned, and a scanner for scanning the surface to be scanned disposed between the image forming optical system and a position whereat the image of the surface to be scanned is formed. The scanner varies the direction of the optical axis of the system three or greater odd number times to thereby make the direction of the optical axis incident on the scanner and the direction of the optical axis emergent from the scanner into the same direction.