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:
May. 13, 2003
Filed:
Dec. 23, 1999
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
The shape of a horizontal cross section Sho including a reference axis Ax on a reflective surface is set to a curved shape for focusing and reflecting light from a light source closer to the reference axis Ax within the horizontal cross section Sho. The shape of a vertical cross section including the axis in the direction of emitting reflected light at each of the points on the horizontal cross section including the reference axis Ax on the reflective surface is set to a curved shape for reflecting the light from the light source in substantially parallel to the axis in the direction of emitting the reflected light in a central reflective area near the lateral reference axis Ax. The shapes of peripheral reflective areas on both sides of the central reflective area are respectively set to curved shapes for focusing and reflecting the light from the light source closer to the axis in the direction of emitting the reflected light. It is thus possible to obtain a light distribution pattern with less nonuniformity in light and a substantially laterally long rectangular shape.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile