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Folded light path structure, optical imaging system and virtual reality equipment

A technology of virtual reality and light path, applied in the field of optics, can solve problems affecting the viewing effect of users, achieve the effects of improving viewing effect, eliminating ghost images, and improving image quality

Pending Publication Date: 2021-10-08
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiments of the present invention provide a folded optical path structure, an optical imaging system, and a virtual reality device, which can effectively improve the technical problems of existing technologies that easily lead to ghosting and other defects and affect the user's viewing effect.

Method used

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  • Folded light path structure, optical imaging system and virtual reality equipment
  • Folded light path structure, optical imaging system and virtual reality equipment
  • Folded light path structure, optical imaging system and virtual reality equipment

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Embodiment Construction

[0022] In the description of the present invention, it should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. The orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right" and so on are based on the orientation or positional relationship shown in the drawings, or the orientation or position that the product of the invention is usually placed in use The relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for distinguish...

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Abstract

The invention discloses a folded light path structure, an optical imaging system and virtual reality equipment, which are applied to the optical field. The folded light path structure comprises a light path body and a phase compensation element. The light path body comprises a first 1 / 4 wave plate, a lens module, a second 1 / 4 wave plate and a polarization reflector plate which are arranged in sequence. A partial reflection film is arranged in the lens module. The phase compensation element is arranged on a light path between the lens module and the polarization reflector plate and is used for carrying out polarization compensation on polarized light transmitted between the lens module and the polarization reflector plate, so that the polarized light incident to the polarization reflector plate is corresponding linearly polarized light. Ghosting can be eliminated, and the watching effect of users can be improved.

Description

technical field [0001] The invention belongs to the field of optics, and in particular relates to a folded optical path structure, an optical imaging system and a virtual reality device. Background technique [0002] With the development of display technology, a virtual reality (Virtual Reality, VR) display technology has received extensive attention and has gradually appeared in people's life and work. In the field of VR display, in order to make VR equipment lighter and thinner, most technicians choose to adopt the pancake folding optical path structure, which can greatly reduce the thickness of the VR optical structure, but it also brings more serious stray light, Ghost images and other defects are formed, which affect the user's viewing effect. Contents of the invention [0003] Embodiments of the present invention provide a folded optical path structure, an optical imaging system, and a virtual reality device, which can effectively improve the technical problems in t...

Claims

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Application Information

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IPC IPC(8): G02B27/01
CPCG02B27/0172
Inventor 白家荣董瑞君武玉龙栗可王晨如韩娜马占山陈丽莉
Owner BOE TECH GRP CO LTD
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