Waveguide sheet, processing method of waveguide sheet, and head mounted display device
A technology of waveguide and light, which is applied in the field of waveguide and head-mounted display equipment, can solve the problems of large optical-mechanical size and unfavorable installation, and achieve the effect of reducing optical-mechanical size
Active Publication Date: 2022-08-02
SHENZHEN LOCHN OPTICS HI-TECH CO LTD
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[0003] Based on this, in view of the large size of the existing head-mounted display device, which is not conducive to installation, it is necessary to provide a waveguide, a processing method for the waveguide and a head-mounted display device, aiming at ensuring the range of user's eye movement. In the case of reducing the size of the optical machine, it is easy to complete the installation of the optical machine
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[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly. ...
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The invention discloses a waveguide sheet, a processing method of the waveguide sheet, and a head-mounted display device. The waveguide sheet comprises: a waveguide sheet body having a first surface and a second surface arranged oppositely, the waveguide sheet body comprising a light coupling area and a the light coupling out area, the light outgoing direction of the light coupling out area is toward the first surface, and the light incoming direction of the light coupling area is toward the first surface or the second surface; the flat reflector is arranged on the side of the waveguide sheet body away from the light coupling area; the light splitter The component is arranged on the waveguide sheet body, and is located in the light path after the light is reflected by the flat reflector. The light enters the waveguide sheet body from the light coupling region, and then goes to the flat reflector through the waveguide sheet body, and the flat reflector reflects the light to the beam splitter. The light splitting component receives the light reflected by the flat reflector, and the light splitting component couples the light out to the human eye in the light coupling out area. The technical solution of the present invention can reduce the size of the optomechanical and facilitate the installation of the optomechanical under the condition of ensuring the eye movement range of the user.
Description
technical field [0001] The present invention relates to the technical field of optical display, and in particular, to a waveguide sheet and a head-mounted display device. Background technique [0002] Head mounted display is an electronic product that can provide an immersive experience. Currently, the display principles of head mounted display devices include virtual reality technology, augmented reality technology and mixed reality technology. Reality) technology. The conical range formed by the human eye and the image it sees is called the field of view, and the distance between the image position that the human eye can see and the display device is called the exit pupil distance. The range that can be shaken is called the eye movement range. In order to improve the eye movement range, the size of the optomechanical needs to be made larger, and the installation space is limited, and the larger size of the optomechanical is not conducive to installation. SUMMARY OF THE...
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IPC IPC(8): G02B6/00G02B27/01
CPCG02B6/0055G02B6/0056G02B27/0172
Inventor 唐笑运宋强王景苏鹏华马国斌汪涛
Owner SHENZHEN LOCHN OPTICS HI-TECH CO LTD