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Ocular

An eyepiece and lens technology, which is applied in the optical field, can solve the problems such as the inability to meet the requirements of high image quality, large field of view and small volume, and achieve the effect of compact structure, low distortion and light weight.

Inactive Publication Date: 2010-11-17
SHENZHEN ACAD OF AEROSPACE TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an eyepiece suitable for head-mounted displays or similar devices, aiming at the defect that the eyepieces of the existing head-mounted displays cannot meet the requirements of high image quality, large field of view and small volume. Long pupil distance, large field of view and relatively small size

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0038] see figure 1 , is an optical system diagram of the eyepiece according to the first embodiment of the present invention. Such as figure 1 As shown, from the human eye observation side to the display device I side (from left to right), there are diaphragm E, first lens L1, second lens L2, third lens L3 and display device I in sequence. In this embodiment, the first lens L1 and the third lens are positive lenses, and the second lens is a negative lens to correct system chromatic aberration. Moreover, the first lens L1 , the second lens L2 , and the third lens L3 all use aspheric surfaces to correct system aberrations including field curvature and distortion. Here, the serial number of the surface of the diaphragm E is 1, and so on, and the n...

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Abstract

The invention relates to an ocular, comprising an aperture, a first lens, a second lens and a third lens which are coaxially and successively arranged from the observing side of human eyes to the display device side along the direction of an optic axis, and the relation among materials, the focuses and positions of the first lens, the second first lens and the third lens meet a certain relation, thus an image displayed on a displayer is imaged in human eyes at the aperture after being amplified by the ocular. The ocular of the invention has the advantages of large bore diameter, large field of view, short focus, low aberration and the like, is suitable for the head-wearing displayer and similar devices, can be made of optic plastics, and has light weight and low cost.

Description

technical field [0001] The invention relates to the field of optical technology, more specifically, to an eyepiece suitable for head-mounted displays or similar devices. Background technique [0002] Head-mounted displays (or head-mounted displays, video glasses) have huge application value and market no matter in multimedia entertainment or in military, industrial, medical and other fields. The requirements for head-mounted displays are comfortable wearing, compact structure, small volume, high image quality and as large a field of view as possible. [0003] The head-mounted display is mainly composed of three parts: the display part, the optical system, and the mechanical structure connecting the former two. The optical system determines the imaging quality, field of view, and volume of the head-mounted display, that is, the optical system is the core part of the head-mounted display, and its performance parameters determine the overall system parameters of the product. ...

Claims

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Application Information

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IPC IPC(8): G02B25/00G02B3/02G02B1/04G02B27/01
Inventor 陈云亮
Owner SHENZHEN ACAD OF AEROSPACE TECH
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