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Lamp module for projectors

A projector and projection technology, which is applied in the direction of image reproducer, instrument, picture replicator, etc. of the projection device, can solve the problems of limited luminous flux and low efficiency, and achieve the effect of ensuring efficiency, reducing shading, and large focal length.

Inactive Publication Date: 2009-08-26
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

However, it has been found that this design is only effective for small focal lengths of the reflector, so that only low-wattage lamps with a small bulb outer diameter can be used, or are less efficient
Thus, limiting the achievable luminous flux on the screen

Method used

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  • Lamp module for projectors
  • Lamp module for projectors
  • Lamp module for projectors

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Embodiment Construction

[0022] according to figure 1 , the lamp module 1 according to the invention has a schematically shown lamp 2 which is arranged in a reflector 4 and has a discharge vessel 6 with two lamp rods 8 , 10 arranged diametrically opposite each other, in which the light-conducting The optical lens 12 is provided for deflecting the radiation emitted by the lamp 2 away from the light pole 10 on the exit side. The radiation emitted by the lamp 2 is deflected away from the exit-side lamp post 10 by means of the lens 12 , so that shadowing by the lamp post 10 is avoided and maximum efficiency of the lamp module 1 is ensured. The rear lamp post 8 of the lamp 2 is inserted into the receptacle 14 of the reflector 4 . The lens 12 is fixed on the reflector 4 and forms the front plate of the lamp module 1 , so that the lamp module is at least partially closed by the lens 12 . To accommodate the light pole 10 on the exit side, the lens 12 has an approximately centrally arranged cylindrical reces...

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Abstract

A lamp module is disclosed, in particular for projectors for data or video projection, having at least one lamp (2) which is inserted into a reflector (4) and has a discharge vessel (6) with two lamp shafts (8, 10) arranged diametrically opposite one another. According to the invention, a light-deflecting optical lens (12) is provided in order to deflect the radiation emitted from the lamp from the outlet-side lamp shaft (10).

Description

technical field [0001] The invention relates to a lamp module, in particular for a projector for data projection or video projection, having at least one lamp which is used in a reflector and has two The light container of the light pole that is set oppositely. Background technique [0002] The market for digital projectors for data projection or video projection has grown rapidly worldwide since the invention of DLP technology. The ever-increasing use is also due in particular to the fact that projectors, due to the technology used, can be produced more and more cheaply and be designed to be compact in size, so that they can be used mobile in daily office work. In particular, there is a need for flat data projectors. This also places constraints on the design of the illumination optics with regard to the reflector diameter and the reflector height. Here, solutions are required that keep the brightness on the screen as high as possible compared to conventional designs, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31H04N5/74G03B21/20G03B21/16F21V13/04
CPCG03B21/20F21V13/04H04N9/315
Inventor 亨宁·雷恩
Owner OSRAM GMBH
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