Light source apparatus and fabrication method thereof

A technology of a light source device and a manufacturing method, which is applied to components of lighting devices, projection devices, lighting devices, etc., can solve problems such as attenuating infrared rays, and achieve the effect of simple manufacturing

Inactive Publication Date: 2006-05-10
USHIO DENKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Although this disclosed technology discloses the possibility of using metal reflectors for projectors and the like, a glass layer is contained on an aluminum substrate, and nickel-iron spinel-based black pigments are contained in the glass layer. These black pigments Attenuates infrared rays emitted from discharge lamps

Method used

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  • Light source apparatus and fabrication method thereof
  • Light source apparatus and fabrication method thereof
  • Light source apparatus and fabrication method thereof

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Embodiment Construction

[0035] Hereinafter, embodiments of the present invention will be described in detail.

[0036] figure 1 It is an explanatory cross-sectional view showing an example of the structure of the light source device of the present invention.

[0037] The light source device 10 is provided with a high pressure mercury discharge lamp 40 as a light source, a concave mirror that accommodates the high pressure mercury discharge lamp 40 and reflects the radiated light emitted from the high pressure mercury discharge lamp 40 to project the reflected light through an opening. 20, and a translucent front glass 19 provided so as to block the opening of the concave mirror 20, and a high pressure mercury discharge lamp 40 is accommodated in the space formed by the concave mirror 20 and the front glass 19, and also It has a so-called closed structure.

[0038] like figure 1 As shown, the light source device 10 is used in a state where the tube axis of the high pressure mercury discharge lamp...

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Abstract

In order to satisfy the following two conditions: ensure the strength of the reflector itself not to be damaged due to the pressure of the discharge lamp when the lamp is broken; effectively discharge the heat of the reflector and the lamp out of the projector frame, and provide a A light source device provided with a metal concave reflector, which uses a metal reflector, has excellent infrared absorption performance, and has a glass layer closely attached to a metal base. The light source device is composed of a high-pressure discharge lamp and a concave reflector surrounding the high-pressure discharge lamp, wherein the concave reflector is composed of a metal base, a glass layer and a dielectric multilayer film layer arranged on the glass layer, wherein the The metal substrate is made of aluminum or an alloy with aluminum as the main component, or any material in stainless steel, and the glass layer is formed on the inner surface of the metal substrate and contains nickel, cobalt, vanadium, copper, zirconium, calcium, Oxides of at least one metal selected from manganese and molybdenum.

Description

technical field [0001] The present invention relates to a light source device composed of a high pressure discharge lamp and its concave reflector. In particular, it relates to projection devices such as DLPTM (Digital Light Processor) using a liquid crystal display device or DMDTM (Digital Micromirror Device), which use a 3 The above mercury and the ultra-high pressure mercury lamp in which the mercury vapor reaches ultra-high pressure when lit are used as the light source. Background technique [0002] For a rectangular screen, projection type projectors are required to have uniform and sufficient color rendering and be able to illuminate images. Therefore, as the light source, a metal halide lamp in which mercury or metal halide is enclosed can be used. For such metal halide lamps, recently, further miniaturization and point light sources have been developed, and the distance between electrodes has been minimized. [0003] Against this background, recently, instead of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20C03C3/076C03C27/02F21V7/00G02B5/08G02F1/1335G03B21/28
Inventor 岩林弘久
Owner USHIO DENKI KK
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