Invention Grant
- Patent Title: Vehicle front lamp
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Application No.: US15878866Application Date: 2018-01-24
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Publication No.: US10086749B2Publication Date: 2018-10-02
- Inventor: Tohru Himeno , Naoko Takei
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2017-014701 20170130
- Main IPC: B60Q1/02
- IPC: B60Q1/02 ; B60Q1/14 ; F21S41/176

Abstract:
Provided is a vehicle front lamp for use in a vehicle, including: a first white light source that emits first white light; a second white light source that emits second white light having a feeling of contrast index different from that of the first white light by at least 10; and a controller that controls light intensity of the first white light and light intensity of the second white light, in which chromaticity of the first white light and chromaticity of the second white light are each within a 5-step MacAdam ellipse, the first white light source and the second white light source are disposed in the vehicle front lamp so that the first white light and the second white light overlap each other on a certain illuminated surface, and the controller temporally changes a light intensity ratio between the first white light and the second white light.
Public/Granted literature
- US20180215308A1 VEHICLE FRONT LAMP Public/Granted day:2018-08-02
Information query