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Optical module and head-mounted display device

A technology of optical modules and display devices, applied in optics, optical components, instruments, etc., can solve problems such as bright spots

Pending Publication Date: 2021-11-02
SHENZHEN HUYNEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose an optical module and a head-mounted display device, aiming to solve the technical problem of brighter light spots appearing above the virtual image in the existing display device

Method used

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  • Optical module and head-mounted display device
  • Optical module and head-mounted display device
  • Optical module and head-mounted display device

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses an optical module and a head-mounted display device. The optical module comprises an image generating unit, a lens unit, a first optical unit, a second optical unit and a stray light eliminating unit; the lens unit is arranged on a light emitting light path of the image generating unit, the first optical unit is arranged on the side, away from the image generating unit, of the lens unit, the first optical unit is used for transmitting and reflecting light beams, the second optical unit is arranged on a light path of the light beams reflected by the first optical unit and used for transmitting and reflecting the light beams, the stray light eliminating unit is arranged on the lens unit or / and the second optical unit, and the stray light eliminating unit is used for reducing energy of the light beams reflected to the lens unit by the second optical unit. According to the technical scheme, the energy of the light beams reflected to the lens unit by the second optical unit is reduced through the stray light eliminating unit, the brightness of light spots in the view of a user is reduced, and therefore the light spots are eliminated or the brightness of the light spots is reduced.

Description

technical field [0001] The invention relates to the technical field of optical display, in particular to an optical module and a head-mounted display device. Background technique [0002] Augmented reality (Augmented Reality, referred to as AR) technology is a new technology that ingeniously integrates real world information and virtual world information. Visual information, sound, taste, touch, etc.) are simulated by computer and other science and technology and then superimposed, and the virtual information is applied to the real world, which is perceived by human senses, so as to achieve a sensory experience beyond reality. [0003] At present, in the existing augmented reality solutions, due to the design of the optical path of the display device, a bright spot of light often appears above the virtual image, which is a common "ghost" phenomenon in optics. Contents of the invention [0004] The main purpose of the present invention is to provide an optical module and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172
Inventor 王旭陈益千周知星张韦韪
Owner SHENZHEN HUYNEW TECH CO LTD
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