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Lamp Unit

A lamp unit and lamp holder technology, which is applied in the direction of headlights, lighting and heating equipment, vehicle lighting systems, etc., can solve the problems of increasing installation cost and lamp unit cost structure, etc.

Inactive Publication Date: 2012-05-30
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of these solutions is that, on the one hand, such a lamp unit is relatively complex to construct, since additional components must be provided for fixing the position.
On the other hand, installation costs are increased due to the placement of additional components

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0042] figure 1 A three-dimensional view of a lamp unit 1 according to the invention with a high-pressure discharge lamp 4 inserted in a reflector 2 of a motor vehicle headlight is shown. The high-pressure discharge lamp can be, for example, a metal-halide high-pressure discharge lamp or a D1 to D4 lamp with an electrical power consumption of approximately 25 W. Such high-pressure discharge lamps are sufficiently known from the prior art, for example, from EP 1 605 490 A2 or EP 0 786 791 B1, that only the components that are relevant for understanding the invention are explained here, and reference is also made to the already mentioned prior art have technology.

[0043] exist figure 1 The lamp unit 1 shown in is characterized in that the reflector 2 and the high-pressure discharge lamp 4 are connected to each other by means of a bayonet connection 6, wherein the difference from conventional solutions is that additional components such as clips, bows pieces or locking cages...

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PUM

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Abstract

The invention relates to a lamp unit comprising a high-pressure discharge lamp (4) which is inserted into a reflector (2), preferably a motor vehicle headlight. Said lamp comprises a base (12) with a reference ring (24) which is connected to the case ring of the reflector by means of a bayonet interface (6).

Description

technical field [0001] The invention relates to a lamp unit according to the preamble of claim 1 . Background technique [0002] Lamp units of this type can in principle be used in lamps which are inserted into the lamp base on one side. However, the main field of application should be in lamp units for vehicle headlights. Lamp units for such motor vehicle headlights are described, for example, in the documents EP 1 605 490 A2 and DE 10 2005 009 902 A1. [0003] In these known solutions, the lamp unit has a discharge lamp, as it is for example under the product name "Xenarc TM "Sold in large quantities. The high-pressure discharge lamp has a one-piece or multi-piece lamp base, through which the high-pressure discharge lamp can be inserted into the base of the reflector of the motor vehicle headlight. In order to orient the lamp in the reflector and prevent Incorrect installation of different lamp types, one or more reference recesses and coding recesses are formed on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/10F21V19/00F21Y101/00
CPCF21S48/1145F21S48/1109F21S41/14F21S41/192
Inventor 于尔根·贝克尔卡斯滕·皮奇基利安·克拉格斯马蒂亚斯·普罗奇
Owner OSRAM GMBH