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:
Jun. 24, 2014
Filed:
Dec. 20, 2011
Applicants:
Naoya Iizuka, Utsunomiya, JP;
Fumitaro Masaki, Utsunomiya, JP;
Akira Miyake, Nasukarasuyama, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 7/26 (2006.01); G03B 27/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter reflects first light having a first wavelength, and transmits second light having a second wavelength shorter than the first wavelength. The filter includes a plurality of plate members positioned parallel to each other with gaps therebetween in a first direction. An enveloping surface formed by end surfaces of the plurality of plate members forms a flat surface, which is nonparallel to the first direction. The filter transmits the second light to the second direction.