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:
Oct. 05, 2004
Filed:
Jun. 10, 2002
Yutaka Nakata, Isehara, JP;
Ichikoh Industries, Ltd., Tokyo, JP;
Abstract
A headlamp that is installed at the front of an automobile, such headlamp including a light source, a main reflector, and a sub reflector. When the light source is turned on the headlamp reflects the light from the light source with the main reflector and the sub reflector to illuminate a road surface in a target luminous intensity distribution pattern, and chances the luminous intensity distribution pattern by moving the sub reflector. The main reflector and the sub reflector are prepared based on a composite combination of reflection surfaces of free curved surfaces. The sub reflector is movably disposed at a position where the light from the light source is directly incident to the sub reflectors and also at the position where the sub reflector does not interrupt a light path through which the light from the light source is incident to the main reflector.