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Optical system and head-mounted display device

An optical system and equipment technology, applied in optics, optical components, instruments, etc., can solve the problem of difficulty in obtaining a large field of view

Pending Publication Date: 2019-01-11
GEER INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to obtain a larger field of view due to the limitation of the size of the display and the size of the optical system

Method used

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

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0047] The optical system provided by the present application can be applied to the current AR (Augmented Reality) technical field, and is suitable for but not limited to head-mounted display devices.

[0048]The technical solution of the present application will be described in detail below in conjunction with the accompanying drawings.

[0049] figure 1 It is a schematic structural diagram of an embodiment of an optical system according to an embodiment of the present application. The optical system may include: a first lens group 101 , a first polarizing reflective prism group 102 , a catadioptric mirror group 103 and a second lens group 104 .

[0050] Wherein, the...

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Abstract

The invention provides an optical system and a head-mounted display device. The optical system comprises a first lens group, a first polarization reflecting prism group, a folding reflector group anda second lens group. The first lens group transmits incident light to a first light incident surface of the first polarization reflecting prism group. The first light incident surface transmits the light from the first lens group to a first polarization reflecting surface of the first polarization reflecting prism group. The first polarization reflecting surface reflects the light from the first light incident surface to a focal power reflecting surface of the folding reflector group. The focal power reflecting surface reflects the light from the first polarization reflecting surface to a second light incident surface of the first polarization reflecting prism group. The second light incident surface transmits the light from the focal power reflecting surface to a third light incident surface of the second lens group through a light emitting surface of the first polarization reflecting prism group. The third light incident surface transmits the light from the second light incident surface to the light emitting surface of the second lens group. An intermediate image plane is formed on an optical path in front of the focal power reflecting surface. The optical system provided by theinvention increases the field of view of the optical system.

Description

technical field [0001] The embodiment of the present application relates to the field of augmented reality technology, and in particular to an optical system and a head-mounted display device. Background technique [0002] An optical system refers to a system formed by combining various optical elements in a certain order. It is usually used for imaging or optical information processing. It is widely used in various electronic devices, such as headsets based on (Augmented Reality, Augmented Reality) AR technology. display screen. [0003] At present, the virtual image displayed by the display in the head-mounted display device based on AR technology needs to be optimized and modulated by the optical system and then transmitted to the outcoupling position corresponding to the position of the human eye. The outcoupling position projects the AR image into the user's eyes. Since the head-mounted display device is worn on the user's head, in order to reduce the pressure on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172G02B2027/0123
Inventor 高震宇
Owner GEER INTELLIGENT TECH CO LTD
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