Invention Grant
- Patent Title: Lamp unit
- Patent Title (中): 灯泡单元
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Application No.: US12041929Application Date: 2008-03-04
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Publication No.: US07712935B2Publication Date: 2010-05-11
- Inventor: Michio Tsukamoto , Kazuhisa Mochizuki
- Applicant: Michio Tsukamoto , Kazuhisa Mochizuki
- Applicant Address: JP Tokyo
- Assignee: Koito Manufacturing Co., Ltd.
- Current Assignee: Koito Manufacturing Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-067523 20070315
- Main IPC: F21V5/00
- IPC: F21V5/00

Abstract:
A lamp unit is provided. The lamp unit includes a light emitting element disposed on an optical axis so as to face in a direction substantially orthogonal to the optical axis, a first reflector facing the light emitting element to forwardly reflect light from the light emitting element, and a direct light control member disposed in front of the light emitting element for controlling direct light directed toward a region in front of the first reflector from the light emitting element without being incident on the first reflector. The direct light control member includes a first lens portion which deflects a first portion of the direct light in a direction approaching the optical axis, and an extended portion extending from the first lens portion. The extended portion controls a second portion of the direct light differently from the first lens portion.
Public/Granted literature
- US20080225540A1 LAMP UNIT Public/Granted day:2008-09-18
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