Invention Grant
- Patent Title: Vehicular lamp
- Patent Title (中): 车灯
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Application No.: US10949881Application Date: 2004-09-24
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Publication No.: US07168834B2Publication Date: 2007-01-30
- Inventor: Hitoshi Takeda , Tsukasa Tokida , Takumi Inoue
- Applicant: Hitoshi Takeda , Tsukasa Tokida , Takumi Inoue
- Applicant Address: JP Tokyo JP Tokushima
- Assignee: Koito Manufacturing Co., Ltd.,Nichia Corporation
- Current Assignee: Koito Manufacturing Co., Ltd.,Nichia Corporation
- Current Assignee Address: JP Tokyo JP Tokushima
- Agency: Osha Liang L.L.P.
- Priority: JP2003-333116 20030925; JP2004-237912 20040818
- Main IPC: F21V11/00
- IPC: F21V11/00

Abstract:
A vehicular lamp that irradiates amber light includes: a light emitting diode operable to emit blue light; a long-wavelength phosphor operable to emit light of which a peak wavelength is substantially equal to or longer than a wavelength of the umber light based on the blue light emitting from the light emitting diode; and an optical filter operable to block the bulk of light emitting from the light emitting diode and also to transmit the bulk of light, which has a wavelength similar to the peak wavelength, among light emitting from the long-wavelength phosphor to generate the amber light depending to light emitting from the light emitting diode and the long-wavelength phosphor.
Public/Granted literature
- US20050117361A1 Vehicular lamp Public/Granted day:2005-06-02
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