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:
Mar. 02, 2004
Filed:
Mar. 22, 2002
Hitoshi Taniuchi, Tokyo, JP;
Teruo Koike, Kanagawa-ken, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Abstract
A projector type lamp can include a projection lens formed by combining together projection lens elements obtained by processing a plurality of projection lenses that can be substantially identical in optical axis center Z, focal length, and focal point, yet different in outer diameter. The projection lens can appear substantially rectangular when viewed in an optical axis direction. Boundary portions between the plurality of processed projection lens elements can be composed of a line connecting points of intersection between a contour line of the projection lens and a line defining a part of each unprocessed projection lens element at which thickness is substantially zero. The lens surfaces of the processed projection lens elements can be continuous with one another through stepped portions that are parallel to the optical axis of the projection lens.