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:
Sep. 10, 2002
Filed:
Apr. 29, 1996
Applicant:
Inventor:
Tetsuya Ishii, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/744 ; G02B 9/08 ;
U.S. Cl.
CPC ...
G02B 2/744 ; G02B 9/08 ;
Abstract
An optical system including a diffraction optical element and for forming an image of an object by light having a given wavelength width includes at least one diffraction optical element and a diffraction light selection element for transmitting a diffraction light of given order to an output side of the diffraction optical element and for attenuating the diffraction light of orders other than the given order.