Title:
車両用前照灯
Document Type and Number:
Japanese Patent JP4392786
Kind Code:
B2
Abstract:
Whereas a light source bulb is used as a light source of a basic lamp piece unit which needs a large amount of irradiating light, with regard to an additional lamp piece unit lighted on and off repeatedly in accordance with a situation of running a vehicle, a semiconductor light emitting element having a fast response speed in being lighted on and off and excellent in durability against repeatedly lighting on and off the semiconductor light emitting element 64 as a light source thereof. Thereby, light can be irradiated in correspondence with the situation of running the vehicle and life of the light source can sufficiently been ensured. Further, the additional lamp piece unit is made to be able to be compactly constituted to promote a degree of freedom of arranging the additional lamp piece unit.
Inventors:
Hiroyuki Ishida
Masashi Tatsukawa
Kiyoshi Satsuka
Masashi Tatsukawa
Kiyoshi Satsuka
Application Number:
JP2003374060A
Publication Date:
January 06, 2010
Filing Date:
November 04, 2003
Export Citation:
Assignee:
Koito Manufacturing Co., Ltd.
International Classes:
B60Q1/08; B60Q1/12; B60Q1/18; F21S8/10; F21S8/12; F21V14/00; F21V14/02; F21V14/08; F21W101/10; F21Y101/02
Domestic Patent References:
| JP2003242812A | ||||
| JP2003258319A | ||||
| JP76608A | ||||
| JP2001213227A | ||||
| JP2002140907A | ||||
| JP2003123517A | ||||
| JP2003141910A | ||||
| JP200372618A | ||||
| JP200345210A | ||||
| JP2003317515A |
Attorney, Agent or Firm:
Takashi Moriyama