Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Reflective eyepiece optical system and head-mounted near-eye display device

An optical system and reflective technology, applied in the optical field, can solve the problems of heavy optical structure, insufficient field of view, and low image quality, and achieve the effects of reducing cost and weight, improving optical indicators, and increasing size

Active Publication Date: 2022-08-05
SHENZHEN NED OPTICS CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the existing optical structure is heavy, the image quality is not high, there is distortion, the viewing angle is not large enough, and mass production is difficult. Eyepiece optical system and head-mounted near-eye display device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reflective eyepiece optical system and head-mounted near-eye display device
  • Reflective eyepiece optical system and head-mounted near-eye display device
  • Reflective eyepiece optical system and head-mounted near-eye display device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0161] The eyepiece design data of the first embodiment are shown in Table 1 below:

[0162]

[0163] attached figure 1 It is the optical path diagram of the eyepiece optical system of the first embodiment, including the first lens group T1, and the first optical element L1 and the second lens group T2 for transmitting and reflecting the light from the micro-image display IMG; the second lens group T2 It includes an optical reflection surface S2, and the optical reflection surface S2 is the optical surface farthest from the viewing side of the human eye in the second lens group T2; the optical reflection surface S2 is concave to the viewing direction of the human eye; the first optical element L1 will be The light refracted by the lens group T1 is reflected to the second lens group T2, and then the light refracted, reflected and then refracted by the second lens group T2 is transmitted to the human eye EYE.

[0164] The first lens group T1 includes a first sub-lens group T...

no. 2 example

[0168] The eyepiece design data of the second embodiment is shown in Table 2 below:

[0169]

[0170] attached Figure 5 It is an optical path diagram of the optical system of the second embodiment, including a first lens group T1, and a first optical element L1 and a second lens group T2 for transmitting and reflecting light from the micro-image display IMG; the second lens group T2 includes An optical reflection surface S2, and the optical reflection surface S2 is the optical surface farthest from the viewing side of the human eye in the second lens group T2; the optical reflection surface S2 is concave to the viewing direction of the human eye; the first optical element L1 will pass through the first lens. The light refracted by the group T1 is reflected to the second lens group T2, and then the light refracted, reflected and then refracted by the second lens group T2 is transmitted to the human eye EYE.

[0171] The first lens group T1 includes a first sub-lens group T...

no. 3 example

[0175] The eyepiece design data of the third embodiment is shown in Table 3 below:

[0176]

[0177] attached Figure 9 It is the optical path diagram of the optical system of the third embodiment, including a first lens group T1, and a first optical element L1 and a second lens group T2 for transmitting and reflecting light from the micro-image display IMG; the second lens group T2 includes An optical reflection surface S2, and the optical reflection surface S2 is the optical surface farthest from the viewing side of the human eye in the second lens group T2; the optical reflection surface S2 is concave to the viewing direction of the human eye; the first optical element L1 will pass through the first lens. The light refracted by the group T1 is reflected to the second lens group T2, and then the light refracted, reflected and then refracted by the second lens group T2 is transmitted to the human eye EYE.

[0178] The first lens group T1 includes a first sub-lens group T1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a reflective eyepiece optical system and a head-mounted near-eye display device. The system comprises: a first lens group, and a first optical element and a second lens group for transmitting and reflecting light from a micro-image display; The two lens groups include an optical reflection surface, and the optical reflection surface is the optical surface farthest from the viewing side of the human eye in the second lens group; the optical reflection surface is concave to the viewing direction of the human eye; the first optical element will pass through the first lens group. The refracted light is reflected to the second lens group, and then the light refracted, reflected and re-refracted by the second lens group is transmitted to the human eye; The first sub-lens group, the second sub-lens group and the third sub-lens group are arranged in sequence; through the combination of the focal lengths of each lens group, the optical path is effectively folded, the overall size is reduced, and the aberration is greatly eliminated, Achieving a highly immersive visual experience.

Description

technical field [0001] The present invention relates to the field of optical technology, and more particularly, to a reflective eyepiece optical system and a head-mounted near-eye display device. Background technique [0002] With the continuous development of ultra-miniaturization of electronic devices, head-mounted display devices and products are constantly emerging in military, industrial, medical, education, consumer and other fields. In a typical wearable computing system architecture, head-mounted display devices are key component. The head-mounted display device guides the video image light emitted by the miniature image display (such as transmissive or reflective liquid crystal display, organic electroluminescent device, DMD device) to the user's pupil through optical technology, and the user's near vision. The scope realizes virtual and enlarged images, and provides users with intuitive and visible images, videos, and text information. The eyepiece optical system...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02B25/00G02B27/01
CPCG02B25/001G02B27/0172G02B17/08G02B9/62
Inventor 彭华军曹鸿鹏郭健飞
Owner SHENZHEN NED OPTICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com