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Lens for head-mounted display equipment and head-mounted equipment

A display device and lens technology, applied in optical components, optics, instruments, etc., can solve the problems of high cost and high system heat generation, and achieve the effects of stable production performance, LCA aberration correction, and easy molding.

Active Publication Date: 2014-09-17
GOERTEK OPTICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the existing lens used for the head-mounted display device needs to preprocess the image first, the system generates high heat, and the cost is high, the present invention proposes a lens for the head-mounted display device and the head-mounted device, and adopts the following The technical solution is realized:

Method used

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  • Lens for head-mounted display equipment and head-mounted equipment
  • Lens for head-mounted display equipment and head-mounted equipment
  • Lens for head-mounted display equipment and head-mounted equipment

Examples

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Effect test

Embodiment 1

[0030] refer to figure 1 , the present invention is used for a lens for a head-mounted display device, including a biconvex lens 11 and a plano-concave cylindrical mirror 12 arranged side by side; Far away from the human eye side; the biconvex lens 11 includes aspheric surface I13 and aspheric surface II14, and the plano-concave cylindrical lens includes aspheric surface III15 and aspheric surface IV16; the aspheric surface I13 is close to the human eye, and the aspheric surface II14 and aspheric surface III15 are paired Set, the aspherical surface Ⅳ16 is a plane.

[0031] The radii of curvature of aspheric surface Ⅰ13, aspheric surface Ⅱ14, aspheric surface Ⅲ15 and aspheric surface Ⅳ16 are R1, R2, R3 and R4, where R1>0, R2<0, R1<-R2<100, R3<0, R4 is infinite .

[0032] The aspheric surface I13 is smaller than the negative aspheric surface II14, so that the positive lens sheet 1 bears more focal power and plays the role of converging.

[0033] The design value of R3 is sele...

Embodiment 2

[0046] The difference between this embodiment and Embodiment 1 is that the aspheric surface I, aspheric surface II and aspheric surface III of this embodiment are odd-order aspheric surfaces, and their surface shapes satisfy the formula:

[0047] Z = cY 2 1 + 1 - ( 1 + k ) c 2 Y 2 + Σ i = 1 N α i Y i ,

[0048] where z is the coordinate along the optical axis, Y is the radial coordinate in units ...

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Abstract

The invention provides a lens for head-mounted display equipment. The lens comprises a double convex lens body and a plano-concave cylindrical lens body, wherein the double convex lens body and the plano-concave cylindrical lens body are arranged side by side; the double convex lens body is arranged on the side close to the human eyes, and the plano-concave cylindrical lens body is arranged on the side away from the human eyes; the double convex lens body comprises an aspheric surface I and an aspheric surface II, and the plano-concave cylindrical lens body comprises an aspheric surface III and as aspheric surface IV; the aspheric surface I is close to the human eyes, the aspheric surface II and the aspheric surface III are oppositely arranged, and the aspheric surface IV is a plane. By the adoption of the head-mounted display equipment, no preprocessing on an original display image is needed, Y-direction compression on the image is performed through the optical lens, and the X-direction size is kept unchangeable. Thus, the aspect ratio of the image is reduced into 4:3 from 8:9 through compression, and the image is displayed on the retina of the human body. In addition, the double convex lens body of the lens is easy to form, the MTF, SPOT and LCA aberration is corrected well, and manufacturing cost and weight of the lens are greatly reduced.

Description

technical field [0001] The invention relates to a lens for a head-mounted display device and the head-mounted device, which are applied in the field of consumer electronics. Background technique [0002] With the advancement of the display component manufacturing industry and the emergence of 3D technology, there has been a boom in wearables in the field of consumer electronics, and head-mounted displays, as an early technology, have once again entered people's sight. As a technology that has been applied in the civilian field in recent years, head-mounted displays are developing in the direction of miniaturization, high performance, and low cost. A general head-mounted display will enlarge the image on the micro-display and finally present it on the player's retina, bringing the current two-dimensional plane picture to the player with a more three-dimensional and more impactful sense, creating an immersive sense of reality . [0003] At present, some well-known companies ...

Claims

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Application Information

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IPC IPC(8): G02B27/01G02B27/00
Inventor 杨春
Owner GOERTEK OPTICAL TECH CO LTD
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