Title:
AUTOMOTIVE HEADLAMP
Document Type and Number:
Japanese Patent JP3251156
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enhance the visibility of the main beam of a headlamp by moving a shade at a position where it encompasses a light-source bulb placed ahead of a reflector, thereby tilting the reflector.
SOLUTION: A light source unit 20 provided in the interior of a lamp body 10 is adjusted as it is tilted by an aiming mechanism. A shade 31 is provided in a position where it surrounds the discharge part 27 of the light source unit 20, so that light emitted from the discharge part 27 is guided to a predetermined area of the effective reflecting surface of a reflector 21. The shade 31 moves along an optical axis L to switch beam distribution between that for a main beam and that for a low beam. When the shade 31 comes to a front position, the light emitted from the discharge part 27 is guided to both first and second reflecting surfaces 22a, 22b. At the same time, the leveling mechanism of a reflector tilting mechanism is driven to tilt the reflector 21 to hold the optical axis L of the reflector 21 titled forward and upward by a predetermined angle.
Inventors:
Hirohiko Oshio
Application Number:
JP24106695A
Publication Date:
January 28, 2002
Filing Date:
September 20, 1995
Export Citation:
Assignee:
Koito Manufacturing Co., Ltd.
International Classes:
B60Q1/06; B60Q1/14; F21S2/00; F21S8/10; F21V11/00; F21V14/00; F21V14/04; F21W101/10; F21Y103/00; (IPC1-7): F21S8/10; B60Q1/14; F21V14/00
Domestic Patent References:
| JP366763B2 | ||||
| JP731447Y2 | ||||
| JP76562Y2 |
Attorney, Agent or Firm:
Hideto Yagi