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Title:
車両用前照灯
Document Type and Number:
Japanese Patent JP6904203
Kind Code:
B2
Abstract:
To provide a vehicular headlight that can appropriately adjust illuminance of light generated by a light source in an environment irradiated with sunlight.SOLUTION: A vehicular headlight 100 comprises: a light source 10; a reflector 20 for reflecting light from the light source 10; a lens 30 comprising an incident surface 31 onto which the light reflected by the reflector 20 is incident, and an emitting surface 32 for emitting the light incident on the incident surface 31 to an irradiated region in front of a vehicle; and a lighting circuit 52 comprising a temperature sensor 51 for detecting a temperature, and an illuminance control unit for adjusting illuminance of the light from the light source 10 on the basis of a result detected by the temperature sensor 51, and in which the temperature sensor 51 is arranged at a position irradiated with sunlight incident from the emitting surface 32 of the lens 30 and emitted from the incident surface 31.SELECTED DRAWING: Figure 1

Inventors:
Eiji Suzuki
Application Number:
JP2017187892A
Publication Date:
July 14, 2021
Filing Date:
September 28, 2017
Export Citation:
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Assignee:
Ichikoh Co., Ltd.
International Classes:
F21S45/10; B60Q1/04; F21S41/148; F21S41/255; F21V23/00
Domestic Patent References:
JP2011124110A
JP2013054919A
JP2011090793A
JP2014037195A
JP2016091730A
Foreign References:
WO2015016068A1
Attorney, Agent or Firm:
Sakai International Patent Office