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Method of manufacturing auxiliary mirror, method of manufacturing light source lamp, method of manufacturing hole opening parts and projector

A manufacturing method and reflector technology, applied in electric light sources, reflectors, optical elements, etc., can solve the problems of brokenness and difficulty in improving the manufacturing yield, and achieve the effect of improving the manufacturing yield and avoiding breakage

Inactive Publication Date: 2009-03-18
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, since these materials are brittle, when the above-mentioned materials are used to manufacture auxiliary mirrors, cracks will occur in the drilling process for forming through holes, so there is a problem that it is difficult to improve the manufacturing yield.

Method used

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  • Method of manufacturing auxiliary mirror, method of manufacturing light source lamp, method of manufacturing hole opening parts and projector
  • Method of manufacturing auxiliary mirror, method of manufacturing light source lamp, method of manufacturing hole opening parts and projector
  • Method of manufacturing auxiliary mirror, method of manufacturing light source lamp, method of manufacturing hole opening parts and projector

Examples

Experimental program
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Embodiment 1

[0051] First, a projector according to Embodiment 1 will be described with reference to FIG. 1 .

[0052] FIG. 1 is a plan view showing an optical system of a projector according to Embodiment 1. FIG. In addition, in the following description, the three directions perpendicular to each other are respectively defined as the z direction (the direction of the optical axis of the light source in FIG. 1), the x direction (the direction parallel to the paper and perpendicular to the z axis in FIG. 1) and The y direction (the direction perpendicular to the paper surface and perpendicular to the z axis in FIG. 1 ).

[0053] As shown in Figure 1, the projector 1 of Embodiment 1 has: an illumination device 100; a color separation optical system 200; a relay optical system 300; three liquid crystal devices 400R, 400G, and 400B; a cross dichroic prism 500 and projection optics System 600. The components of the optical system are arranged in a substantially horizontal direction centered ...

Embodiment 2

[0116] Figure 7 It is a figure which shows the auxiliary reflector of the light source lamp of Example 2. Figure 7 (a) is a perspective view, Figure 7 (b) is a front view, Figure 7 (c) is Figure 7 (b) B-B section view. Figure 8 It is a figure for demonstrating the manufacturing method of the auxiliary mirror of Example 2. Figure 8 (1) and Figure 8 (2) is a side view and a cross-sectional view for explaining the preparation process of the tubular member, Figure 8 (3) and Figure 8 (4) is a side view for explaining the grinding process, Figure 8 (5) and Figure 8 (6) is a side view for explaining the grinding process, Figure 8 (7) is a side view for explaining the process of forming the reflective layer. In addition, in Figure 7 with Figure 8 in, for with image 3 Components that are the same as those in FIG. 4 are assigned the same reference numerals, and detailed description thereof will be omitted.

[0117] Such as Figure 7 with Figure 8 As show...

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Abstract

Aspects of the invention can provide a manufacturing method of a sub-mirror that can readily enhance manufacturing yield. The manufacturing method of a sub-mirror used for a light source lamp provided with an arc tube, an ellipsoidal reflector to reflect lights emitted from the arc tube to be emitted toward an illuminated region, and a sub-mirror having a reflection concave surface to reflect the lights emitted from the arc tube to the ellipsoidal reflector and a through-hole used for attachment to the arc tube. The manufacturing method of a sub-mirror can include a tube-like member preparing step of preparing a tube-like member having an inside diameter dimension matching with an inside diameter dimension of the through-hole, a grinding step of forming a concave surface, through grinding applied from one end face side of the tube-like member, a polishing step of polishing the concave surface formed in the grinding step, and a reflection layer forming step of forming the reflection concave surface by forming a reflection layer within a concave surface polished in the polishing step.

Description

technical field [0001] The present invention relates to a manufacturing method of an auxiliary reflector, a manufacturing method of a light source lamp, a projector and a manufacturing method of a perforated part. Background technique [0002] As a light source lamp for a projector, a light source lamp having an auxiliary reflector that reflects light irradiated from a light emitting tube to the illuminated area side onto a reflector is known. Using this light source lamp, since the light that is not effectively used originally from the luminous tube irradiated to the illuminated area side can also be effectively used, it is possible to realize higher luminance of the projector (for example, refer to Patent Documents 1 and 2). ). [0003] FIG. 9 is a diagram showing a configuration of a light source lamp disclosed in Patent Document 1. As shown in FIG. Figure 10 It is a figure which shows the structure of the light source lamp disclosed by patent document 2. In such light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/14G02B5/10F21S2/00F21V7/00G02B5/08G02B27/00
CPCF21V7/0025
Inventor 高户雄二
Owner SEIKO EPSON CORP