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:
Jan. 17, 2006
Filed:
Apr. 12, 2004
Applicant:
Yoshiharu Tenmyo, Kanagawa, JP;
Inventor:
Yoshiharu Tenmyo, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light emitting device that is capable of changing the illumination angle in the transverse direction while efficiently utilizing energy from a light source. An emission unit includes at least an arc tube. A pair of reflecting means are arranged in a longitudinal direction of the arc tube so as to reflect luminous fluxes emitted from the arc tube in a direction which varies according to the distance between the emission unit and each of the reflecting means.