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Image light generation module and image display device

An image display device and a technology for generating modules, which are applied in the directions of optics, optical components, instruments, etc., can solve the problems of increased weight of the correction lens and enlarged device structure, etc.

Active Publication Date: 2021-08-03
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned projector, it is necessary to provide an arrangement space for arranging the correction lens between the synthesis prism and each display element, and therefore, the size of the device structure increases in proportion to the arrangement space of the correction lens. , or the weight increase caused by the correction lens

Method used

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  • Image light generation module and image display device
  • Image light generation module and image display device
  • Image light generation module and image display device

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no. 1 Embodiment approach

[0021] Hereinafter, one embodiment of the present invention will be described using the drawings.

[0022] figure 1 It is a schematic configuration diagram of the image light generation module according to the first embodiment of the present invention.

[0023] In addition, in each of the following drawings, in order to facilitate the observation of each component, the scale of the dimension may be different depending on the component.

[0024] Such as figure 1 As shown, the image light generating module 1 has a first display element 10 , a second display element 11 , a third display element 12 , and a synthesis prism 50 .

[0025] The first display element 10 includes a first effective display area 21 and a first non-display area 31 . The first effective display region 21 has a plurality of pixels 21R that generate red light. The first effective display region 21 is a region capable of generating and emitting red image light (first image light) LR in the red wavelength ran...

no. 2 Embodiment approach

[0058] Next, an image light generation module according to a second embodiment of the present invention will be described using the drawings. The image light generation module 1 of the first embodiment relates to a module that focuses on reducing axial chromatic aberration caused by optical components, but the image light generation module of this embodiment reduces lateral chromatic aberration of optical components and realizes head-mounted A miniaturized and lightweight image light generation module for a type display device.

[0059] image 3 It is a schematic configuration diagram of the image light generation module of the second embodiment. In addition, the same code|symbol is attached|subjected to the same structure and components as 1st Embodiment, and detailed description is abbreviate|omitted. Such as image 3 As shown, the image light generating module 101 of the present embodiment has a first display element 110 , a second display element 111 , a third display e...

no. 3 Embodiment approach

[0091] Next, an image light generation module according to a third embodiment of the present invention will be described using the drawings. The image light generating module of this embodiment is an optical module that focuses on reducing both axial chromatic aberration and lateral chromatic aberration caused by the light guide optical system. That is, the image light generating module of this embodiment has a configuration in which the first embodiment and the second embodiment are combined.

[0092] Image 6It is a schematic configuration diagram of the image light generation module of the third embodiment. In addition, the same code|symbol is attached|subjected to the same structure and member as the above-mentioned embodiment, and detailed description is abbreviate|omitted. Such as Image 6 As shown, the image light generation module 102 of the present embodiment has a first display element 110 , a second display element 111 , a third display element 112 , and a synthe...

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Abstract

Provided are an image light generation module and an image display device, which reduce chromatic aberration and reduce the size and weight of the image display device. The image light generation module is characterized by comprising a first display element configured to emit first image light, a second display element configured to emit second image light different from the first image light, a third display element configured to emit third image light different from the first image light and the second image light, a combining prism configured to emit combined image light combined from the first image light, the second image light, and the third image light, and a first gap defining member that defines a first gap between the first display element and the combining prism, a second gap defining member that defines a second gap between the second display element and the combining prism, and a third gap defining member that defines a third gap between the third display element and the combining prism, in which at least one of the first gap, the second gap, and the third gap is different in size from another of the gaps.

Description

technical field [0001] The invention relates to an image light generating module and an image display device. Background technique [0002] Patent Document 1 below discloses a projector including three display elements that emit RGB image lights and a synthesis prism that synthesizes the light emitted from the respective display elements. In this projector, a correction lens for correcting lateral chromatic aberration is provided between each display element and a synthesis prism. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2001-066695 [0004] However, in the above-mentioned projector, it is necessary to provide an arrangement space for arranging the correction lens between the synthesis prism and each display element, and therefore, the size of the device structure increases in proportion to the arrangement space of the correction lens. , or the weight increase caused by the correction lens. Contents of the invention [0005] In order to solve the above-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B27/10
CPCG02B27/0172G02B27/1013G02B2027/0178G02B2027/0116G02B27/149G02B2027/0114
Inventor 井出光隆米漥政敏
Owner SEIKO EPSON CORP