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Optical magnifying combination mirror, head-mounted display optical system and equipment

A technology of optical magnification and combined mirrors, which is applied in the field of optics, can solve the problems of incompatibility between field of view and product volume and weight, and achieve the effects of enhancing immersion, expanding peripheral vision, and reducing discomfort

Active Publication Date: 2017-10-31
CHENGDU IDEALSEE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an optical magnification combination mirror, a head-mounted display optical system and a head-mounted virtual reality display device with the optical magnification combination mirror, so as to solve the problem caused by the use of traditional lenses in the existing head-mounted virtual reality display system. The visual field of view and the volume and weight of the product cannot be balanced

Method used

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  • Optical magnifying combination mirror, head-mounted display optical system and equipment
  • Optical magnifying combination mirror, head-mounted display optical system and equipment
  • Optical magnifying combination mirror, head-mounted display optical system and equipment

Examples

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Embodiment 1

[0053] see Figure 7 , is a schematic structural diagram of the binocular head-mounted display optical system, including the image display source 1 shared by the left and right eyes (the image display source 1 can be a large screen divided into left and right screens, or two separate left and right small screens) and left and right two screens. A group of optical magnifying glass groups, each group of optical magnifying glass groups is composed of a piece of optical magnifying combination mirror 2, the light information displayed by the image display source 1, and the projected virtual image enlarged by the optical magnifying combination mirror 2 is received by human eyes. In the present embodiment, the central lens part (central region A) of the optical magnification combined mirror 2 is cemented by two circular aspheric lenses with the same diameter, that is to say, the central region A of the main mirror 21 is a combined convex lens; Area B is a plane-based Fresnel lens hol...

Embodiment 2

[0058] see Figure 9 , the head-mounted display optical system in this embodiment has an image display source 1 and two sets of optical magnifying glass groups on the left and right, and each group of optical magnifying glass groups is composed of an optical magnifying combination lens 2 and two focusing sheet-type optical elements 3, and the two focusing sheets The optical element 3 is located between the optical magnifying lens 2 and the image display source 1, and the two focusing sheet optical elements 3 in each group of optical magnifying lenses can be a flat base Fresnel lens and a curved base Fresnel lens. lens. The light information displayed by the image display source 1 first passes through the focusing thin optical element 3, and then enters the human eye through the optical magnifying combination mirror 2

Embodiment 3

[0060] see Figure 10 The head-mounted display optical system in this embodiment has an image display source 1 and two groups of optical magnifying glass groups on the left and right, and each group of optical magnifying glass groups consists of an optical magnifying combination mirror 2 and a focusing thin optical element 3 (the present embodiment selects a flat base phenanthrene Neel lens), the light information displayed by the image display source 1 first passes through the focusing thin optical element 3, and then enters the human eye through the optical magnifying combination mirror 2. In this embodiment, the central area A of the optical magnification combined mirror 2 is a circular aspheric lens, and the edge area B is a Fresnel lens hollowed out in the center. The structure of the lens part is marked as Figure 11 As shown, their respective parameters can be referred to Table 2. In this embodiment, when the optical magnifying combination mirror 2 satisfies the param...

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Abstract

The invention discloses an optical enlargement combination lens. The optical enlargement combination lens comprises center areas and a marginal areas, wherein the center areas are provided with either convex lenses or combined convex lenses, center area are used for imaging corresponding to a main field, and the marginal areas are imaged corresponding to a marginal field. Correspondingly, the invention further discloses a head-mounted display optical system and head-mounted display optical equipment applying the optical enlargement combination lens. By adopting the combination of traditional lenses and focusing thin type optical elements, the picture quality of a center can be ensured, the borderland vision of human eyes can be enlarged at the same time, and the immersion of a user can be enhanced; furthermore, due to the use of the focusing thin type optical elements, the weight of the head-mounted virtual reality display equipment can be reduced to a great extent, and the wearing discomfort caused by the weight can be alleviated.

Description

technical field [0001] The invention relates to the field of optics, in particular to an optical magnifying combination mirror applied to a head-mounted display device, a head-mounted display optical system and a head-mounted virtual reality display device with the optical magnifying combination mirror. Background technique [0002] At present, the optical magnification elements of head-mounted virtual reality display systems all use traditional lenses, such as spherical lenses, aspheric lenses or free-form optical lenses. Due to the limitations of optical processing technology and optical materials, the caliber of the optical magnifier group in the display system is usually It will be made relatively small (if the aperture is enlarged, the weight and volume of the optical system will increase significantly), the field of view that the user can observe through the optical magnifying glass group is limited by the diameter of the magnifying glass group, and the field of view of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B25/04G02B27/01
CPCG02B25/007G02B25/008G02B25/04G02B27/0172
Inventor 黄琴华宋海涛
Owner CHENGDU IDEALSEE TECH
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