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An eyepiece and a head-mounted display device

A technology of eyepiece and display screen, which is applied in the optical field, can solve the problems of weakening the experience effect, the eyepiece cannot support diopter adjustment, etc., and achieve the effect of ensuring clarity and color expression, compact structure, and large field of view

Active Publication Date: 2018-12-18
北京海鲸科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many optical designers often ignore the back intercept, resulting in eyepieces that cannot support diopter adjustment. When wearing a display device, myopic users have to wear myopia glasses at the same time to see the picture clearly, which greatly weakens the experience effect

Method used

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  • An eyepiece and a head-mounted display device
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  • An eyepiece and a head-mounted display device

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] A structural schematic diagram of an eyepiece in an embodiment of the present invention is as follows figure 1 As shown, it includes: a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5 and a sixth lens 6 arranged in parallel between the diaphragm 7 and the display screen 8, The first lens 1 is adjacent to the diaphragm 7, and the sixth lens 6 is adjacent to the display screen 8; wherein, the second lens 2 and the third lens 3 form a cemented lens group, and the remaining lenses are placed separately; the first lens 1, the third The lens 3 and the fourth lens 4 are positive lenses, the second lens 2 is a negative lens, the fifth lens 5 is a positive lens, and the sixth lens 6 is a negative lens, or the fifth lens 5 is a negative lens and the sixth lens 6 is a positive lens lens; and,

[0025] The refractive indices of the...

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Abstract

The invention discloses an eyepiece and a head mounted display device. The eyepiece comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are arrayed in parallel sequentially between an aperture slot and a display screen, wherein the second lens and third lens form a glued lens group, the other lenses are separately arranged. The first lens, third lens and the fourth lens are plus lenses, the second lens is a minus lens, the fifth lens is a plus lens, the sixth lens is a minus lens, or the fifth lens is a minus lens, the sixth lens is a plus lens. The eyepiece can acquire a big rear cut-off distance, and supports Myopia regulation in a wide range. Myopic people can see images clearly without wearing myopia lenses. At the same time, the eyepiece is compact in structure, has a big exit pupil diameter and a big exit pupil distance, permits certain level of wearing deviation, possesses a big viewing angle and small distortion, a high transfer function and a small color difference, and can guarantee the image clarity and color expressiveness.

Description

technical field [0001] The invention belongs to the field of optical technology, and in particular relates to an eyepiece and a head-mounted display device. Background technique [0002] In recent years, head-mounted display devices have gradually become popular products in the field of optical displays. The head-mounted display device is mainly composed of a display screen, an eyepiece, a diopter adjustment mechanism, and an image processing unit. People's experience with head-mounted products mainly lies in two aspects: picture quality and wearing comfort. Among them, the picture quality includes factors such as picture clarity, color saturation, contrast, illumination uniformity and distortion, which are mainly determined by the display screen and optical eyepieces; while wearing comfort involves the weight, volume, fixing method, wearing The error and whether people with myopia still need to wear myopia glasses are determined by the mechanical structure and optical eye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B25/00G02B27/01
CPCG02B25/001G02B27/0101
Inventor 王集森王岩郑少林
Owner 北京海鲸科技有限公司
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