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Optical enlargement combination lens, head-mounted display optical system and equipment

A technology of optical magnification and combination mirror, applied in the field of optics, it can solve the problem that the field of view cannot be taken into account with the volume and weight of the product, and achieve the effect of enhancing the sense of immersion, expanding the peripheral vision and reducing the weight.

Active Publication Date: 2015-07-01
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 enlargement combination lens, head-mounted display optical system and equipment
  • Optical enlargement combination lens, head-mounted display optical system and equipment
  • Optical enlargement combination lens, head-mounted display optical system and equipment

Examples

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Embodiment 1

[0045] see Figure 1 ~ Figure 3 The optical magnifying combination mirror 2 of this embodiment includes a set of convex lenses 21 with a small transparent skirt and a set of hollowed-out planar base Fresnel lenses 22. The inner diameter of the Fresnel lenses 22 has a sunken overlapping edge, The overlapping edge coincides with the skirt of the convex lens 21 . When the convex lens 21 and the Fresnel lens 22 are combined, the convex lens 21 just fits into the central hollow area of ​​the Fresnel lens 22 , and the skirt of the convex lens 21 overlaps with the sinking edge of the Fresnel lens 22 .

Embodiment 2

[0047] see Figure 4 and Figure 5 The optical magnification combination mirror 2 of the present embodiment comprises a group of convex lenses 21 with a large transparent skirt and a group of centrally hollowed-out plane base Fresnel lenses 22, and the shape and size of the skirt of the convex lens 21 is the same as that of the centrally hollowed out Fresnel lens 22 have the same shape and size. When the Fresnel lens 22 and the convex lens 21 are stacked together, the skirt of the convex lens 21 and the Fresnel lens 22 are completely overlapped.

[0048] It should be noted that since the transparent plate skirt of the convex lens does not have any optical effect, its main function is to facilitate the combination of the convex lens and the focusing thin optical element, so the skirt of the convex lens may also be inconsistent in size and shape with the focusing thin optical element, and the two can be partially overlap.

Embodiment 3

[0050] Head-mounted VR display devices are divided into monocular and binocular. Figure 1 to Figure 5 The structure of the optical magnifying combination mirror introduced is a monocular structure, and when it is applied to a binocular head-mounted display device, a left and a right set are required. Combine below Figure 6 and Figure 7 Introducing the all-in-one magnifying combination lens suitable for binocular use. Figure 6 It is a convex lens group with a transparent flat skirt, which has two convex lenses on the left and right, connected together by a transparent flat skirt; Figure 7 to fit in Figure 6 Convex planar base Fresnel lenses, which correspond to Figure 6 The convex lens group has two symmetrical hollow areas; the two are superimposed together to form an integrated optical magnifying combination mirror suitable for binocular purposes. Such an integrated optical magnifying combination mirror is easier to install, but the head-mounted display device usi...

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Abstract

The invention discloses an optical enlargement combination lens. The optical enlargement combination lens comprises a groups of focusing thin type optical elements with hollowed centers and a group of either convex lenses or combined convex lenses with transparent flat plate skirts, wherein the focusing thin type optical elements and either convex lenses or combined convex lenses are overlapped, and the hollow areas of the focusing thin type optical elements and the raised parts of the either convex lenses or the combined convex lenses are tightly matched. 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 the 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 Applications(China)
IPC IPC(8): G02B25/04G02B27/01
CPCG02B25/007G02B27/0101
Inventor 黄琴华宋海涛
Owner CHENGDU IDEALSEE TECH
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