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Image display device

An image display device and image generation technology, which can be used in image communication, television, optics, etc., and can solve problems such as the restriction of the viewer's field of view

Active Publication Date: 2020-07-31
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the field of view of the observer is restricted due to the first curved mirror and the second curved mirror

Method used

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Experimental program
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Effect test

no. 1 approach

[0038] Below, use Figure 1 to Figure 5 A first embodiment of the present invention will be described.

[0039] The image display device of the first embodiment is an example of a head-mounted display that is used by a user wearing it on the head.

[0040] In the following description, a head mounted display (Head Mounted Display) is abbreviated as HMD.

[0041] figure 1 It is a figure which shows the state which a user wears the HMD of 1st Embodiment. figure 2 It is a perspective view of the HMD of the first embodiment. In addition, in all the following drawings, in order to see each component clearly, it may show that the ratio of a dimension differs depending on a component.

[0042] Such as figure 1 As shown, the HMD 300 of this embodiment is a device that is worn on the user's head as if wearing glasses. The HMD 300 of the present embodiment is a transmission type (transmission type) HMD. According to HMD300 of this embodiment, a user can visually confirm the imag...

no. 2 approach

[0069] Below, use Figure 7 A second embodiment of the present invention will be described. The basic structure of the HMD of this embodiment is the same as that of the first embodiment, and the structure of the second reflecting mirror is different from that of the first embodiment. Figure 7 It is a plan view of the HMD of this embodiment. exist Figure 7 , for the one used in the first embodiment with image 3 Common constituent elements are denoted by the same reference numerals, and detailed descriptions thereof are omitted.

[0070]In the first embodiment, the second mirror 25 is constituted by a hologram mirror, and makes the light incident from the first mirror 24 at a relatively large incident angle enter the pupil of the observer. In contrast, as Figure 7 As shown, in the display device 102 of this embodiment, the second mirror 31 constituting the light guiding optical system 30 has a structure with a semi-transparent reflection film applied, wherein the semi-t...

no. 3 approach

[0073] Below, use Figure 8 A third embodiment of the present invention will be described. The basic structure of the HMD of this embodiment is the same as that of the first embodiment, and the structures of the first reflecting mirror and the second reflecting mirror are different from those of the first embodiment. Figure 8 It is a plan view of the HMD of this embodiment. exist Figure 8 , for the one used in the first embodiment with image 3 Common constituent elements are denoted by the same reference numerals, and detailed descriptions thereof are omitted.

[0074] In the first embodiment, the first reflector 24 and the second reflector 25 are independent reflectors. In contrast, as Figure 8 As shown, in the display device 104 of the present embodiment, the first reflection mirror and the second reflection mirror constituting the light guide optical system 40 are constituted by an integral reflection mirror 41 . Other structures are the same as those of the first...

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PUM

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Abstract

The invention provides an image display device that allows for easily adjusting the position of a display unit. The display device 100 of the present invention includes an image generator unit 11 thatoutputs light containing image information, and a light guide optical system 13 that forms an image from the light from the image generator unit 11 at an exit pupil position. The light guide opticalsystem 13 includes a first mirror 24 (first deflector) for deflecting the light generated by the image generator unit 11, and a second mirror 25 (second deflector) that further deflects the light deflected by the first mirror 24 toward the exit pupil position and allows a portion of external light to pass through, where an optical axis of the light travelling from the first mirror 24 toward the second mirror 25 intersects an optical axis of the exit pupil at an acute angle.

Description

[0001] This application is a divisional application of an application with a filing date of September 25, 2015, an application number of 201580052470.5, and an invention title of "image display device". technical field [0002] The present invention relates to an image display device. Background technique [0003] In recent years, as one type of wearable information equipment, an image display device of a form worn by an observer, such as a head-mounted display, has been provided. For example, Patent Document 1 below discloses a display device including a first two-dimensional optical scanning device, a second two-dimensional optical scanning device, a transflective device, and a reflective device. In the display device, the images generated by each of the first two-dimensional light scanning device and the second two-dimensional light scanning device are synthesized by the semi-transmissive reflection device, and the synthesized image is projected into the eyes of the obser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B27/14G02B26/08G02B26/10H04N5/64
CPCH04N5/64G02B26/0833G02B26/101G02B27/0172G02B2027/011G02B2027/0145G02B2027/0174G02B2027/0178G02B5/32G02B27/141
Inventor 井出光隆米洼政敏
Owner SEIKO EPSON CORP