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Title:
ILLUMINATION IMPLEMENT FOR VEHICLE
Document Type and Number:
Japanese Patent JP2006080043
Kind Code:
A
Abstract:

To raise the utilization efficiency of the luminous flux of a light source and to compact a lighting implement in an illumination implement for a vehicle, constituted so that a plurality of reflectors are combined and irradiation of light is carried out.

The illumination implement for the vehicle is constituted to reflect a light from the light source 22a, reflected by a pair of first reflectors 24L, 24R each having a reflecting surface shape constituted by a rotating elliptical surface toward forward by a pair of second reflectors 26L, 26R. Thereby, the utilization efficiency of the luminous flux of the light source is enhanced. In this case, these pair of the first reflectors 24L, 24R and these pair of the second reflectors 26L, 26R are arranged at substantially the upper side of a horizontal plane, including an optical axis Ax. Thereby, the light from the light source 22a, reflected by the respective first reflectors 24L, 24R and directed toward the respective second reflectors 26R, 26L are made so as not to be incident to the glass tube 22b of a light source bulb 22, and the width of the vertical direction of the lighting implement is suppressed to be narrow.


Inventors:
TANAKA HIDETADA
Application Number:
JP2004266020A
Publication Date:
March 23, 2006
Filing Date:
September 13, 2004
Export Citation:
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Assignee:
KOITO MFG CO LTD
International Classes:
F21S8/10; F21V7/00; F21W101/10; F21Y101/00
Attorney, Agent or Firm:
Takashi Moriyama



 
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