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. 11, 2011
Filed:
Feb. 05, 2008
Toshiki Ishino, Hiratsuka, JP;
Toshiyuki Okuma, Chofu, JP;
Takaaki Nakabayashi, Kawasaki, JP;
Yoshihiro Saito, Hachioji, JP;
Toshiki Ishino, Hiratsuka, JP;
Toshiyuki Okuma, Chofu, JP;
Takaaki Nakabayashi, Kawasaki, JP;
Yoshihiro Saito, Hachioji, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To shield a frame area, a frame-like shield memberis superimposed over an LCDwhile being separated from the LCDby a distance L. The distance L satisfies<2×()×where f is a focal length of an optical system, D is a human pupil diameter determined statistically in advance, B is a width of the frame area, and A is a value determined statistically in advance as a width which will not be able to be shielded on a side of the frame area to be shielded by a side of the shield member.