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:
Oct. 20, 1987
Filed:
Aug. 09, 1985
Applicant:
Inventor:
Ryusho Hirose, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350505 ;
Abstract
A reflection optical system includes at least one component mirror system effective to form an image at an enlarged magnification, at least one component mirror system effective to form an image at a reduced magnification, and an optical system for sequentially and repeatedly forming an image of an object at a reduced overall magnification, the optical system containing the enlarging power component mirror system and the reducing power component mirror system. In one form of the invention, the component mirror systems and an additional component system, if any, are arranged tandem to constitute a tandem compound optical system.