Invention Grant
- Patent Title: Vehicle lamp
- Patent Title (中): 车灯
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Application No.: US12200308Application Date: 2008-08-28
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Publication No.: US08007146B2Publication Date: 2011-08-30
- Inventor: Naohisa Tatara , Kazutami Oishi , Michihiko Hayakawa
- Applicant: Naohisa Tatara , Kazutami Oishi , Michihiko Hayakawa
- Applicant Address: JP Tokyo
- Assignee: Koito Manufacturing Co., Ltd.
- Current Assignee: Koito Manufacturing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Fish & Richardson P.C.
- Priority: JP2007-239066 20070914; JP2008-160031 20080619
- Main IPC: B60Q1/00
- IPC: B60Q1/00

Abstract:
A vehicle lamp is arranged to switch between a low beam and a high beam. The high beam illuminates a first illumination area, which lies ahead of and square to a center of a vehicle, and a second illumination area, which includes portions lying horizontally further leftwards and right wards and vertically further upwards than the first illumination area. When switching from the low beam to the high beam, the luminous intensity of the second illumination area is increased and thereafter the luminous intensity of the first illumination area is increased. When switching from the high beam to the low beam, the luminance intensity of the first illumination area is decreased and thereafter the luminance intensity of the second illumination area is decreased.
Public/Granted literature
- US20090073706A1 VEHICLE LAMP Public/Granted day:2009-03-19
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