Invention Grant
US07878695B2 Lighting unit for vehicle headlamp including convex lens arranged between light source and shade
有权
用于车灯的照明单元,包括布置在光源和阴影之间的凸透镜
- Patent Title: Lighting unit for vehicle headlamp including convex lens arranged between light source and shade
- Patent Title (中): 用于车灯的照明单元,包括布置在光源和阴影之间的凸透镜
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Application No.: US12121937Application Date: 2008-05-16
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Publication No.: US07878695B2Publication Date: 2011-02-01
- Inventor: Hiroyuki Ishida
- Applicant: Hiroyuki Ishida
- 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: JP2007-131281 20070517
- Main IPC: B60Q1/04
- IPC: B60Q1/04 ; B60Q1/16

Abstract:
A lighting unit with a projection lens, a light source, a reflector, a shade, and a convex lens. The projection lens is arranged on an optical axis extending in a longitudinal direction of a vehicle. The light source is arranged on a rear side of a rear side focal point of the projection lens. The reflector reflects forward light from the light source toward the optical axis. An upper end edge of the shade passes through a vicinity of the rear side focal point. The shade shields part of a reflected light from the reflector. The convex lens is arranged between the light source and the shade, and converges light from the light source into the vicinity of the upper end edge of the shade.
Public/Granted literature
- US20080285297A1 LIGHTING UNIT FOR VEHICLE HEADLAMP Public/Granted day:2008-11-20
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