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Lampshade structure for projection-like image display device

An image display device and projection technology, applied in the direction of image reproducer, image communication, picture duplicator, etc. using projection devices, can solve the problems of reducing cooling efficiency, noise, leakage, etc., and achieve the effect of solving dissatisfaction

Inactive Publication Date: 2005-08-10
LEIJIN ELECTRONIC SHENYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Because the pane-type lampshade mentioned above is conventionally formed by a plurality of horizontal bands spaced at predetermined intervals, the resistance to air flow caused by the cooling fan is increased, and there is a problem that noise is generated while cooling efficiency is reduced.
[0008] And, because the horizontal bands of the above-mentioned pane-type lampshade are densely arranged with a predetermined gap and arranged in a straight line, part of the light generated by the lamp passes through the gaps between the horizontal bands and leaks to the outside, which may cause dissatisfaction among consumers. question

Method used

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  • Lampshade structure for projection-like image display device
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  • Lampshade structure for projection-like image display device

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Embodiment Construction

[0026] refer to Figure 4 and Figure 5 , as follows about the embodiments of the present invention:

[0027] Figure 4 It is a schematic sectional view of the lampshade structure of the projection image display device of the present invention. Figure 5 is applicable to Figure 4 Schematic diagram of a flared lampshade with a lampshade structure.

[0028] Such as Figure 4 and Figure 5 Shown, the present invention is made of following parts: one end is positioned at the flow path of the cooling fan (8) on one side of the image display instrument optical engine (2), while the other end is fixed on the rear chassis (6) of the image display instrument, and The part facing the cooling fan (8) is equipped with at least one support plate (10b) that forms the opening (10a) for fluid flow, and forms the support body (10) of the assembly part at the support plate (10c); through the cooling fan ( 8) While the heat generated by the lamp (2a) on the side of the optical engine (2)...

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Abstract

The present invention relates to a lampshade structure for image displaying instrument of projection TV or projector, etc. Its one end is positioned on the flow circuit of cooling fan placed at one side of optical engine of image displaying instrument, and its another end is fixed in the rear machine box of said image displaying instrument, and the portion faced with said cooling fan is equipped with at least one supporting plate formed into an opening portion for fluid flowing, and on the supporting plate a supporting body is formed as assembling portion. Said invention can make air smoothly flow, raise cooling efficiency of cooling fan, and can control noise and prevent the light produced by the above-mentioned optical engine side lamp for leaking toward exterior of rear machine box.

Description

technical field [0001] The present invention relates to the lampshade structure of projection TV or projector image display instrument, especially related to making the lampshade into tentacles, i.e. horn-like, to improve the cooling efficiency of the lamp, reduce the noise of air flow, and prevent the light generated by the lamp from going out. Leaked projection-type images show the instrument's lampshade structure. Background technique [0002] Generally, projection-type image display devices include projectors or projection TVs, etc., which project a small image generated by an optical engine equipped with a projection lens onto a large screen through a mirror to obtain a larger image than the original image. The image shows the instrumentation system. [0003] For example, a traditional projection TV (1) consists of an optical engine (2) that emits light, a projection lens (3) that projects the light emitted by the optical engine, and a reflector (4) that reflects the l...

Claims

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Application Information

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IPC IPC(8): G03B21/14H04N5/74H04N9/31
Inventor 辛宗勋
Owner LEIJIN ELECTRONIC SHENYANG CO LTD
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