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:
Aug. 30, 1994
Filed:
Oct. 18, 1991
Applicant:
Inventors:
Assignee:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60Q / ;
U.S. Cl.
CPC ...
362 61 ; 362263 ; 362265 ;
Abstract
A motor vehicle headlamp in which electromagnetic waves generated when the discharge bulb employed therein as the light source is activated are prevented from leaking out of the headlamp and interfering with other circuitry on the vehicle. The lamp body of the headlamp is made of a conductive material, or an insulating resin coated with a conductive layer. The lamp body or conductive layer is grounded to the body of the vehicle, thereby to ground out potentially interfering electromagnetic waves generated inside the lamp body.