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Head-mounted visual device capable of performing retinal projection

A head-mounted and retinal technology, applied in the computer field, can solve the problem that users with abnormal vision cannot directly wear head-mounted visual devices, and achieve the effect of promoting application and good user experience

Pending Publication Date: 2018-03-09
BEIJING LLVISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the technical problem to be solved by the present invention is to provide a head-mounted visual device capable of retinal projection, which solves the problem that users with abnormal vision cannot directly wear the head-mounted visual device

Method used

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  • Head-mounted visual device capable of performing retinal projection
  • Head-mounted visual device capable of performing retinal projection
  • Head-mounted visual device capable of performing retinal projection

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the spirit of the disclosure of the present invention will be clearly described below with the accompanying drawings and detailed descriptions. Any person skilled in the art will understand the embodiments of the present invention. , when it can be changed and modified by the technology taught in the content of the present invention, it does not depart from the spirit and scope of the content of the present invention.

[0018] The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention. In addition, elements / members with the same or similar numbers used in the drawings and embodiments are used to represent the same or similar parts.

[0019] As used herein, "first", "second", ... etc. do not refer to a particular sequence or order, nor are they used to limit the pre...

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Abstract

The invention provides a head-mounted visual device capable of performing retinal projection, which comprises a frame, a lighting light source, a beam splitter prism, a first quarter-wave plate, a dynamic spatial light modulator, a second quarter-wave plate and a holographic grating, wherein the frame is used for wearing the head-mounted visual device on the head part of a user; the lighting lightsource is used for lighting; the beam splitter prism is used for beam splitting; the first quarter-wave plate is used for converting P light reflected by the beam splitter prism to S light; the dynamic spatial light modulator is used for converging or diverging light from the first quarter-wave plate according to the distance between the pupil of the user and the beam splitter prism; the second quarter-wave plate is used for converting S light emitted by the first quarter-wave plate to P light; and the holographic grating is used for converging the light from the second quarter-wave plate. Thus, a user with myopia or hyperopia does not need to wear myopic lenses or hyperopic lenses to use the head-mounted visual device.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a head-mounted visual device, specifically a head-mounted visual device capable of retinal projection. Background technique [0002] In recent years, a large number of head-mounted visual devices have emerged, such as Lenovo glasses, Google glasses, virtual reality (VR) gaming glasses, etc., virtual reality (Virtual Reality, VR), augmented reality (Augmented Reality, AR) and mixed reality (Mixed Reality, MR) technology gradually enters our daily life. A head-mounted display (HMD, also known as a head-mounted visual device) reflects a two-dimensional image directly into the eyes of the viewer, specifically through a set of optical systems (mainly precision optical lenses) to enlarge the ultra-micro display The image on the screen projects the image on the retina, and then presents the large-screen image in the eyes of the viewer. In terms of imagery, it is to use a magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172G02B2027/0178
Inventor 李勇
Owner BEIJING LLVISION TECH CO LTD