Invention Grant
- Patent Title: Vehicle lamp, a method of adjusting a vehicle lamp, and a vehicle with a vehicle lamp
- Patent Title (中): 车灯,调节车灯的方法以及车辆灯的车辆
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Application No.: US12441588Application Date: 2007-09-17
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Publication No.: US08944650B2Publication Date: 2015-02-03
- Inventor: Marco Van As , Ralph Hubert Peters
- Applicant: Marco Van As , Ralph Hubert Peters
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips N.V.
- Current Assignee: Koninklijke Philips N.V.
- Current Assignee Address: NL Eindhoven
- Agent Yuliya Mathis
- Priority: EP06121032 20060921
- International Application: PCT/IB2007/053731 WO 20070917
- International Announcement: WO2008/035267 WO 20080327
- Main IPC: F21S8/10
- IPC: F21S8/10 ; B60Q1/08 ; F21Y101/02

Abstract:
The invention provides a lamp with adjustable beam cut-off, useful for e.g. vehicle headlamps. The lamp comprises a solid-state light source 1 and a reflector 2, as well as a movable beam limiter 3. To adjust the cut-off, the beam limiter 3 may be moved by an actuator 4. An advantage is that the beam limiter 3 reflects incident light into the emitted beam instead of absorbing it, which increases efficiency. Furthermore, because the reflector 2 and also the beam limiter 3 may be positioned very close to the light source, which may be a LED or a laser diode, they may be flat and very small. Both circumstances ensure that the beam cut-off may be adjusted very quickly.
Public/Granted literature
- US20090323369A1 VEHICLE LAMP, A METHOD OF ADJUSTING A VEHICLE LAMP, AND A VEHICLE WITH A VEHICLE LAMP Public/Granted day:2009-12-31
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