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:
Apr. 17, 1990
Filed:
Nov. 04, 1988
Naohi Nino, Shizuoka, JP;
Koito Seisakusho Co., Ltd., Shizuoka, JP;
Abstract
Herein disclosed is a vehicle headlamp which comprises a compound light reflector including a plurality of concave light reflecting surfaces which are arranged to have a first common focus, either one of a second common focus and a second common focal line, and a common optical axis, each light reflecting surface being so shaped as to provide an elliptical line when cut by a vertical plane; a light source located on the first common focus of the compound light reflector; a shade plate positioned in front of the compound light reflector, the shade plate having an upper edge located in the vicinity of one of the second common focus and the second common focal line; and a converging lens located in front of the shade plate in such a manner that a focus of the lens is positioned on the upper edge of the shade plate.