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Thin and light optical system of head-mounted virtual reality display device

A display device and virtual reality technology, applied in optics, optical components, optical components, etc., can solve problems such as heavy, unattractive wearers, and bulky products

Inactive Publication Date: 2019-09-06
INTERFACE TECH CHENGDU CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The company's design system places the light source about 40mm in front of the convex lens group (lens), the magnification is about 5-6 times, and the field of view (FOV) is about 90 degrees. wearer discomfort
[0005] It can be seen that there are still many deficiencies in the above-mentioned commonly used items, which are not really good designers and need to be improved urgently.

Method used

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  • Thin and light optical system of head-mounted virtual reality display device
  • Thin and light optical system of head-mounted virtual reality display device
  • Thin and light optical system of head-mounted virtual reality display device

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Embodiment Construction

[0021] The present invention is related to a "thin and light optical system for head-mounted virtual reality (VR) display device", please refer to figure 2 As shown, the thin and light optical system of the head-mounted virtual reality (VR) display device of the present invention mainly includes: a convex lens 20 and a concave lens 30 .

[0022] Wherein, the convex lens 20 is made of light material, and the convex lens 20 is a positive concave-convex lens, which is located at 1 mm in front of the display 40 of a head-mounted virtual reality display device (not shown in the figure), and the center of the convex lens 20 The thickness is 9.5918mm, so that the linear polarized light source of the display 40 is projected through the front first optical surface S1 of the convex lens 20 that contains the transreflective film and the birefringent wave plate (half-wave plate), and then enters the reflective linear polarizer The rear second optical surface S2 is reflected back, and the...

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Abstract

The invention discloses a thin and light optical system of a head-mounted virtual reality (VR) display device. The system comprises a convex lens and a concave lens, wherein through secondary reflection of the convex lens, focal length of the whole optical system is reduced to be about 16.5mm, thus, the optical system has a function of magnifying 6 times even if a display is placed at position 1mmin front of the convex lens, and by a design where the convex lens and the concave lens are made of light materials, size and weight of the head-mounted virtual reality display device is reduced andcomfortable feeling of wearing is increased.

Description

technical field [0001] The invention relates to a thin and light optical system of a head-mounted virtual reality (VR) display device, especially a head-mounted virtual reality display device with a thin and light optical system, which can reduce the overall volume and increase the wearing comfort. Background technique [0002] Press, in recent years, there have been many head-mounted display devices on the market, which generate virtual images through optical system design, giving users the illusion that they are in the real world. [0003] Generally, the wearable glasses on the market need to place the display at a certain distance in front of the lens group, so as to achieve the functions of magnification and increasing the field of view. However, such a design will cause the product to be rather bulky, heavy, unsightly and uncomfortable. [0004] For example, the optical system of virtual reality (VR) glasses produced by a certain company, please refer to figure 1 As s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/01
CPCG02B27/0172G02B27/286G02B2003/0093G02B3/04G02B2027/0116G02C7/086G02B5/3083G02B9/10G02B25/001G02B17/0856
Inventor 邱国扬陈芸霈
Owner INTERFACE TECH CHENGDU CO LTD