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Ocular optical system and head-mounted display

An optical system and display technology, applied in optics, optical components, instruments, etc., can solve the problems of increasing the outer diameter of the front lens and increasing the difficulty of processing optical products, so as to achieve high-presence visual experience and system image Effects of elimination of differences and large field of view

Active Publication Date: 2019-11-08
SHENZHEN NED OPTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent Document 9 (Chinese Patent Publication No. CN 107024766 A) provides an eyepiece system for a head-mounted display, which consists of a positive lens, a negative lens, a positive lens, a positive lens and a negative lens. Positive and negative optical system, the eyepiece system can achieve the effect of large field of view (>40°), but the second negative lens of the eyepiece improves the performance ratio of the entire optical system more efficiently due to the curvature, increasing the Increased the outer diameter of the front lens, increasing the processing difficulty of the entire optical product

Method used

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  • Ocular optical system and head-mounted display
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  • Ocular optical system and head-mounted display

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Experimental program
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Effect test

Embodiment 1

[0123] Schematic diagram of the eyepiece optical system figure 1 As shown, it includes a first lens L1 , a second lens L2 , a third lens L3 , a fourth lens L4 and a fifth lens L5 coaxially arranged sequentially along the optical axis from the human eye observation side to the display device side. The optical surface near the stop is numbered 1, and so on, the optical surfaces from the stop to the image plane are numbered 2, 3, 4, 5, 6, 7, 8, 9, 10 in turn. This embodiment can fully correct aberrations such as distortion, chromatic aberration, and curvature of field of the optical system, and ensure that the effect of a large viewing angle is achieved in the case of a small volume.

[0124] Table 1 Embodiment 1 optical system parameter list

[0125]

[0126]

[0127] like figure 2 As shown, in this embodiment, the diffuse spot radii of the rays of light in each field of view on the image plane (display device) are small and uniform, the degree of misalignment of the di...

Embodiment 2

[0131] Schematic diagram of the eyepiece optical system Figure 7 As shown, it includes a first lens L1 , a second lens L2 , a third lens L3 , a fourth lens L4 and a fifth lens L5 coaxially arranged sequentially along the optical axis from the human eye observation side to the display device side. The optical surface near the stop is numbered 1, and so on, the optical surfaces from the stop to the image plane are numbered 2, 3, 4, 5, 6, 7, 8, 9, 10 in turn. This embodiment can fully correct aberrations such as distortion, chromatic aberration, and curvature of field of the optical system, and ensure that the effect of a large viewing angle is achieved in the case of a small volume.

[0132] Table 2 List of Optical System Parameters of Embodiment 2

[0133]

[0134]

[0135] like Figure 8 Shown is a schematic diagram of the spot diagram of the optical system of this embodiment. It can be seen from the figure that, in this embodiment, the radii of the diffuse spots of ...

Embodiment 3

[0138] Schematic diagram of the eyepiece optical system Figure 11 As shown, it includes a first lens L1 , a second lens L2 , a third lens L3 , a fourth lens L4 and a fifth lens L5 coaxially arranged sequentially along the optical axis from the human eye observation side to the display device side. The optical surface near the stop is numbered 1, and so on, the optical surfaces from the stop to the image plane are numbered 2, 3, 4, 5, 6, 7, 8, 9, 10 in turn. This embodiment can fully correct aberrations such as distortion, chromatic aberration, and curvature of field of the optical system, and ensure that the effect of a large viewing angle is achieved in the case of a small volume.

[0139] Table 3 Embodiment 3 optical system parameter list

[0140]

[0141]

[0142] like Figure 11-Figure 14As shown, in this embodiment, the rays of light in each field of view in the image plane (display device) have a small and uniform radius of the blur spot, and the degree of misal...

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Abstract

The invention relates to an ocular optical system and a head-mounted display. The optical system comprises a first lens, a second lens, a third lens, a fourth lens and fifth lens which are arranged insequence coaxially along an optical axis direction from a human eye observing side to a display part side, wherein the second lens is f<2> in focal length; a lens combination consisting of the thirdlens and the fourth lens is f<34> in focal length; the fifth lens is f<5> in focal length; the distance between a display of the optical system and one side of the fifth lens close to the display is f<d>; and the total length of the system is f<w>. Under the condition of meeting a specific relationship, great elimination of systematic aberration is realized on the basis of lowering the cost and weight, and meanwhile high-quality optical index is realized. An observer can watch a full-frame, high-definition, undistorted and uniform-image-quality large-frame picture, and obtain high sense of immediacy visual experience. The ocular optical system is suitable for the head-mounted display and similar devices.

Description

technical field [0001] The present invention relates to an eyepiece optical system and a head-mounted playback device, more specifically, to an eyepiece optical system and a head-mounted display. Background technique [0002] With the continuous development of electronic devices towards ultra-miniaturization, as well as the development of new computer, microelectronics, optoelectronic devices and communication theories and technologies, wearable computing, a new model based on "people-oriented" and "integration of man and machine" has become a Possibly, applications continue to emerge in military, industrial, medical, education, consumer and other fields. In a typical wearable computing system architecture, the head-mounted display device is a key component. The head-mounted display device guides the video image light emitted by the micro-image display (such as transmissive or reflective liquid crystal display, organic electroluminescent device, DMD device) to the user's pu...

Claims

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Application Information

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IPC IPC(8): G02B25/00G02B27/01G02B13/00G02B13/18G02B13/06
CPCG02B25/001G02B27/0172G02B13/0045G02B13/18G02B13/06
Inventor 曹鸿鹏郭建飞彭华军
Owner SHENZHEN NED OPTICS CO LTD