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. 17, 2003
Filed:
Dec. 14, 2001
Hiroshi Kawashima, Shimizu, JP;
Masashi Tatsukawa, Shimizu, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A method of designing a reflective surface of a reflector used in a vehicle lamp includes a first base curve generating step of generating a first base curve Q; a second base curve generating step of generating a plurality of second base curves R; and a surface shape generating step of generating a surface shape of the reflective surface RS, based on the first base curve and the plurality of second base curves, wherein the first base curve generating step includes repeating a step of generating one partial curve Q and thereafter generating a subsequent partial curve Q so as to be connected to the partial curve, thereby generating one first base curve Q consisting of a plurality of partial curves Q connected to each other, and wherein each partial curve Q is generated based on a shape parameter according thereto. This substantiates a method of designing a reflective surface of a reflector in a vehicle lamp with improved controllability of a light distribution pattern and with improved efficiency of a designing work.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile