Optical magnifying combination lens, head-mounted display optical system and equipment
A technology of optical magnification and combined mirrors, which is applied in the optical field, can solve the problems of visual field and product volume and weight, and achieve the effects of enhancing immersion, reducing discomfort, and reducing the difficulty of combination
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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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