Light source device

A light source device, visible light technology, applied in the direction of light source, electric light source, projection device, etc., to achieve the effects of enhanced damage resistance, good cooling effect, and improved mechanical strength
CN100549812CInactive Publication Date: 2009-10-14USHIO DENKI KK
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
USHIO DENKI KK
Publication Date
2009-10-14
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

PROBLEM TO BE SOLVED: To provide a light source improved in its mechanical strength and coated without distorting the visible light reflector film. SOLUTION: This light source consists of a high pressure discharge lamp 10 and a concave surface mirrors 20 enclosing it. The concave surface mirror 20 is composed of a base consisting of copper, iron or their alloy, an intermediate layer 30 disposed on the inside surface of the above base with a heat absorbing function and a reflection surface smoothing function, and a visible light reflector layer 40 made of a multilayer dielectric film 40 disposed on the above intermediate film. COPYRIGHT: (C)2005,JPO&NCIPI
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a light source device composed of a high-pressure discharge lamp and its concave reflector. In particular, it relates to a light source device used in a projection device such as a liquid crystal display device or a DLP (digital light processor) of a DMD (digital mirror device) in which 0.25 mg / mm 3 The above-mentioned mercury, the ultra-high pressure mercury lamp whose mercury vapor pressure becomes ultra-high pressure when lighting the lamp is used as the light source. Background technique

[0002] Projection-type projection devices require uniform illumination of images on a rectangular screen and require high color rendering. Therefore, a metal halide lamp in which mercury or metal halide is sealed is used as a light source. And with the development of the times, metal halide lamps are now further miniaturized and point light sources, and products with extremely small distances between electrodes have also appeared in pra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More