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Patent Searching and Data


Title:
PROJECTOR-TYPE LIGHTING FIXTURE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2004047327
Kind Code:
A
Abstract:

To solve inconveniences that utilization rate of light flux is low and a headlamp is apt to be dark because about one-half of light source light has been covered by a shielding plate, in a projector type light fixture for vehicle of this conventional type.

In this projector-type lighting fixture 1 for the vehicle, a notched part 2d is installed at least at either side of vertical direction of the main oval reflection surface 2, and in the notched part 2d, two auxiliary oval reflection faces 6 which make the neighborhood of a light source 3 have a first focus and of which the major axis Y is intersected by the major axis X of the main oval reflection surface 2 at an appropriate angle making it roughly left-right symmetry are provided. In each auxiliary oval reflection surface 6, a parabolic reflection surface 7 is installed so that a vicinity of a second focus of this auxiliary oval reflection surface is made to have a focus, and the reflecting direction is made to be roughly the direction of radiation. As a result, capturing rate of the light flux for the light source is improved.


Inventors:
YANAI HITOSHI
Application Number:
JP2002204230A
Publication Date:
February 12, 2004
Filing Date:
July 12, 2002
Export Citation:
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Assignee:
STANLEY ELECTRIC CO LTD
International Classes:
F21S8/12; F21S8/10; F21V7/00; F21V13/00; F21W101/10; F21Y101/00; (IPC1-7): F21S8/12; F21S8/10; F21V7/00; F21V13/00
Attorney, Agent or Firm:
Teruo Akimoto