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:
Feb. 14, 2006
Filed:
Jul. 30, 2003
Akira Sekiguchi, Tokyo, JP;
Tomohiro Sasagawa, Tokyo, JP;
Junichi Nishimae, Tokyo, JP;
Yoshiyuki Goto, Tokyo, JP;
Kohei Teramoto, Tokyo, JP;
Akira Sekiguchi, Tokyo, JP;
Tomohiro Sasagawa, Tokyo, JP;
Junichi Nishimae, Tokyo, JP;
Yoshiyuki Goto, Tokyo, JP;
Kohei Teramoto, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A lamp has a deformed lamp reflector and a lamp front glass. The deformed lamp reflector is formed by deforming a paraboloid of revolution of a conventional lamp reflector to an aspherical reflection surface which is rotationally symmetrical with respect to an optical axis. The lamp front glass is obtained by deforming the incident plane of a conventional lamp front glass to an aspherical lens surface rotationally symmetric with respect to the optical axis. A light flux radiated from the center point of the light source of an illuminant is reflected by the deformed lamp reflector, and is output through the lens as a parallel light flux having a circular cross section equal in area to the lens.