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Method for manufacturing optical device

A manufacturing method and technology of optical devices, applied in optics, projection devices, optical elements, etc., can solve the problems of increased manufacturing costs of boxes for optical components, increased manufacturing costs of optical devices, etc.

Inactive Publication Date: 2005-11-23
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned method of manufacturing an optical device, although the storage and arrangement of optical components can be easily performed in the housing for optical components, it is necessary to form the grooves formed in the housing for optical components with high precision.
Therefore, it is necessary to manufacture the mold used for molding the housing for optical components in a complex shape with high precision, so there is a problem that the manufacturing cost of the housing for optical components increases and the manufacturing cost of the optical device also increases.

Method used

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  • Method for manufacturing optical device
  • Method for manufacturing optical device
  • Method for manufacturing optical device

Examples

Experimental program
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Embodiment 1

[0200] Next, Embodiment 1 of the present invention will be described with reference to the drawings.

[0201] (1-1) Structure of the projector

[0202] FIG. 1 is a perspective view showing an example of a projector including an optical unit manufactured by the method for manufacturing an optical unit according to this embodiment.

[0203] The projector 1 modulates a light beam emitted from a light source according to image information, and enlarges and projects it on a projection surface such as a screen. As shown in FIG. 1 , the projector 1 has an L-shaped optical unit 2 in plan view and a projection lens 3 as a projection optical device connected to one end of the optical unit 2 .

[0204] In addition, although specific illustration is omitted, the projector 1 is configured to include, in addition to the optical unit 2 and the projection lens 3 , a power supply unit for supplying externally supplied power to the components of the projector 1 , and a device for driving and c...

Embodiment 2

[0366] Next, Embodiment 2 of the present invention will be described with reference to the drawings. In the following descriptions and drawings, the same structural parts as those of Embodiment 1 described above are marked with Embodiment 1 or in Figs. Figure 14 The same symbols used in , and their detailed descriptions are omitted.

[0367] (2-1) The structure of the projector and the structure of the optical system

[0368] Figure 15 It is a figure which shows an example of the projector which has the optical unit manufactured by the manufacturing method of the optical unit of Example 2. Figure 16 will be Figure 15 The figure of removing the cover member 25B of the optical unit 2. Figure 17 It is a figure for explaining an optical system. The structure of the projector and the structure of the optical system of this embodiment are substantially the same as those of the projector and the structure of the optical system of Embodiment 1, except that the structure of t...

Embodiment 3

[0608] In the above-mentioned Embodiment 1 and Embodiment 2, although the container-shaped member 25A and the cover-shaped member 25B constituting the case 25 for optical components are formed by performing sheet metal processing on a flat plate such as aluminum, it is not limited thereto, and may be Consists of molded parts made of synthetic resin, Mg alloy, Al alloy, etc., formed by molding such as injection molding.

[0609] The housing 25 for an optical component having a shape like that of Embodiment 1 and Embodiment 2 described above may also be configured by a molded article. However, since molding has a relatively high degree of freedom of shape compared to sheet metal processing, shapes such as those described below are also conceivable.

[0610] in particular, Figure 49 It is a perspective view of the container-shaped member 25A1 constituting the optical component housing 25 which is a molded article made of synthetic resin according to the present embodiment, seen...

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Abstract

A method for manufacturing an optical device includes an optical component housing operation S1 for housing a plurality of optical components in a casing body, an optical component positioning operation S2 for adjusting the positions of the optical components by shifting the optical components to position by positioning members at predetermined positions on an illumination optical axis of a light beam irradiated by a light source, and an optical component position fixing operation S3 for fixing the positions of the optical components on the casing body after the optical component positioning operation S2. The optical component housing operation further includes a positioning member inserting process for inserting the positioning members to holes on the casing body, an optical component housing process for housing the optical components in the casing body, and a positioning member abutting process by which the positioning members abut on the optical components.

Description

technical field [0001] The present invention relates to a method of manufacturing an optical device. Background technique [0002] Conventionally, a projector that modulates a light beam emitted from a light source with a light modulation device according to image information to form an optical image and enlarges and projects the optical image is known (for example, refer to Patent Document 1 (JP-A-2002-31843 No. Gazette)). [0003] This type of projector has an optical device that separates the light beams emitted from the light source into three color lights (R, G, B) by a lens that overlaps the light beams emitted from the light source in the image forming area of ​​the light modulation device. Dichroic mirrors, optical components such as mirrors that guide the light beam emitted from the light source to the light modulation device, and optical components that accommodate and arrange these optical components at specified positions on the illumination optical axis of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14
Inventor 北林雅志山口英雄桥爪秀敏藤泽尚平饭沼和幸
Owner SEIKO EPSON CORP