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Geometric optical waveguide optical display system and wearable equipment

An optical display and optical waveguide technology, applied in the AR field, can solve problems such as low optical transmittance, complex imaging lens group, and large module volume, and achieve high optical transmittance, improved wearing experience, and large eye movement range Effect

Pending Publication Date: 2020-12-15
NINGBO HONGYI OPTO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional geometric optics solutions generally have problems such as small eye movement range, large module thickness, and low optical transmittance
The geometric optical waveguide solution can solve the problems of small eye movement range and low optical transmittance, and improve user experience, but the existing geometric optical waveguide solution still has problems such as large module size, heavy weight of the module, complex imaging lens group and difficult mass production, etc. problem, these shortcomings not only increase the cost of the geometric light guide module but also reduce the experience of using augmented reality wearable devices

Method used

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  • Geometric optical waveguide optical display system and wearable equipment
  • Geometric optical waveguide optical display system and wearable equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to figure 1 As shown, Embodiment 1 of the present invention provides a geometric light guide optical display system, including a display 10 , a field lens 20 , a beam splitter 30 , a reflector 40 and an optical waveguide 50 .

[0037] The display 10 mainly plays the role of emitting light. The display 10 displays 2D or 3D images or videos. The display 10 can be an OLED display, an LCD display, an LCOS display, a DLP display, a micro-LED display, a micro-OLED display or a mini-LED display. The display and the like can be selected as required. In this embodiment, the display 10 is an OLED display.

[0038] The field lens 20 mainly plays the role of reducing field curvature, distortion and dispersion. The two side surfaces of the field lens 20 may be plane, spherical, aspherical or free-form surfaces. Both surfaces of the field lens 20 are provided with anti-reflection films (AR films) in the visible light band.

[0039] The field lens 20 is arranged on the light ...

Embodiment 2

[0061] refer to figure 2 As shown, Embodiment 2 of the present invention provides a geometric light guide optical display system, including a display 10 , a field lens 20 , a beam splitter 30 , a reflection mirror 40 and an optical waveguide plate 50 .

[0062] The display 10 mainly plays the role of emitting light. The display 1060 can display 2D or 3D images or videos. The display 10 can be an OLED display 10, an LCD display 10, an LCOS display 10, a micro-LED display 10, a micro-OLED display 10 or The mini-LED display 10 and the like can be selected according to needs. In this embodiment, the display 10 is an OLED display 10 .

[0063] The field lens 20 mainly plays the role of reducing field curvature, distortion and dispersion. The two side surfaces of the field lens 20 may be plane, spherical, aspherical or free-form surfaces. Both surfaces of the field lens 20 are provided with anti-reflection films (AR films) in the visible light band.

[0064] The field lens 20 is...

Embodiment 3

[0086] Embodiment 3 of the present invention also provides a wearable device, including a wearable part and a geometric light waveguide optical display system.

[0087] It should be noted that the geometric light waveguide optical display system in this embodiment can adopt the geometric light waveguide optical display system in Embodiment 1 or Embodiment 2, and its structure, working principle and technical effect can refer to Embodiment 1 or Embodiment 2. The corresponding content in the example is not repeated here.

[0088] The geometric light waveguide optical display system is arranged on the wearable part. The wearing part can be a helmet or a spectacle frame, etc., so that it is convenient for people to wear it on the head. Of course, the wearable device also includes a control unit, a storage unit, etc., the control unit is used to control the device, and the storage unit is used to store images, videos, etc.

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Abstract

The invention provides a geometric optical waveguide optical display system and wearable equipment, and belongs to the technical field of AR. The system comprises a display, a field lens, a beam splitter, a reflector, and an optical waveguide sheet, wherein the field lens is arranged on a light emitting path of the display, the beam splitter is arranged on a transmitted light path of the field lens, the reflector is arranged on a reflected light path of the beam splitter, and the optical waveguide sheet is arranged on the transmitted light path of the beam splitter. Imaging light of a displayis coupled into a transparent thin substrate for light transmission through a catadioptric imaging system, and the system is light, thin, small, exquisite, large in eye movement range and high in optical transmittance. The wearable equipment is light, thin, small, exquisite, large in eye movement range and high in optical transmittance.

Description

technical field [0001] The invention belongs to the field of AR technology, and in particular relates to a geometric light waveguide optical display system and a wearable device. Background technique [0002] Augmented Reality (AR, Augmented Reality) is a technology that presents digital images generated by computers and other terminal equipment in front of users through a transmissive optical display system. interactive experience. Transmissive geometric light waveguide optical display system is one of the core technologies in the field of augmented reality. At present, wearable devices using enhanced display technology have been widely used in gaming, retail, education, industry, medical and other fields. [0003] At present, the transmission optical display technology can be divided into two types: the traditional geometric optics scheme and the optical waveguide scheme. Traditional geometric optics solutions generally have problems such as small eye movement range, la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01G02B27/10G02B27/28G02B6/122
CPCG02B6/122G02B27/0101G02B27/0172G02B27/10G02B27/28G02B2027/0114
Inventor 周莹王锐
Owner NINGBO HONGYI OPTO ELECTRONICS CO LTD