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Optical lens group, optical system and head-mounted display device

An optical system and optical mirror technology, applied in optics, optical components, instruments, etc., can solve the problems of large size and inconvenience for users to use and wear

Active Publication Date: 2021-08-06
GOERTEK OPTICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, in order to solve the problem that the existing head-mounted display device is relatively large and inconvenient for users to use and wear, it is necessary to provide an optical lens group, an optical system and a head-mounted display device, aiming at reducing the volume of the head-mounted display device , convenient for users to use and wear

Method used

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  • Optical lens group, optical system and head-mounted display device
  • Optical lens group, optical system and head-mounted display device
  • Optical lens group, optical system 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 all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, in t...

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Abstract

The invention discloses an optical lens group, an optical system and a head-mounted display device, and the optical lens group comprises a lens body which comprises a light incident surface for light incidence and a light emergent surface for light emergence, a semi-reflecting and semi-transmitting film is arranged on the light incident surface, a polarization conversion device is arranged on the light emergent surface, and a polarization reflection device is arranged on the side, away from the lens body, of the polarization conversion device, the polarization reflection device comprises a first polarization reflection piece and a second polarization reflection piece, the first polarization reflection piece and the second polarization reflection piece are sequentially arranged in the light propagation direction, the surface of the first polarization reflection piece comprises a first area and a second area, the first area transmits light in a first polarization state, the second area reflects the light in the first polarization state and transmits the light in the second polarization state, and the second polarization reflector reflects the light in the second polarization state and transmits the light in the first polarization state. According to the technical scheme, the size of the head-mounted display device can be effectively reduced, and a user can conveniently use and wear the head-mounted display device.

Description

technical field [0001] The present invention relates to the technical field of optical display, in particular to an optical lens group, an optical system and a head-mounted display device. Background technique [0002] A head mounted display device is an electronic product that can provide an immersive experience. Currently, the display principles of a head mounted display device include virtual reality (Virtual Reality) technology, augmented reality (Augmented Reality) technology and mixed reality (Mixed Reality) technology. [0003] The head-mounted display device needs to accurately display the light at the position of the human eye, and the light needs to pass through a sufficient optical path. Therefore, the head-mounted display device needs to have enough light path propagation space, which leads to a larger volume of the head-mounted display device. , it is not convenient for users to use and wear. Contents of the invention [0004] Based on this, in order to solv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B27/28
CPCG02B27/0172G02B27/286G02B27/283
Inventor 史柴源宋文宝胡惠惠
Owner GOERTEK OPTICAL TECH CO LTD
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