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Virtual-display zoom lens

A zoom lens and virtual display technology, applied in the field of virtual display zoom lens, can solve the problems of inability to adjust the size of the virtual image, reducing the convenience of the head-mounted display, and inability to adjust the magnification of the virtual image, etc.

Inactive Publication Date: 2015-04-29
SHINYOPTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the effective focal length (Effective Focal Length) of the general head-mounted display is fixed (that is, the size of the virtual image cannot be adjusted). This design prevents the user from adjusting the magnification of the virtual image, which reduces the head-mounted display. Ease of use

Method used

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  • Virtual-display zoom lens

Examples

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Embodiment Construction

[0035] Embodiments of the virtual display zoom lens according to the present invention will be described below with reference to related drawings. For ease of understanding, the same components in the following embodiments are described with the same reference numerals.

[0036] see figure 1 ,1 figure 1 It is a schematic diagram of the first embodiment of the virtual display zoom lens of the present invention. The virtual display zoom lens at least includes a first beam splitter 20 , a display component 30 , a second beam splitter 40 , a mirror 50 and a zoom component 70 .

[0037] Wherein, the first beam splitter 20 is arranged on the transmission path of the light 11 generated by the light source 10 for reflecting the light 11 . Wherein, the light source 10 can be a light-emitting diode (Light-Emitting Diode, LED); the first beam splitter 20 can be a polarization beam splitter; the light 11 can be polarized light, such as P polarization or S polarization.

[0038] In othe...

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Abstract

The invention relates to a virtual-display zoom lens. The virtual-display zoom lens comprises a first spectroscope arranged on a transfer path of light ray and used for reflection of the light ray, a display assembly used for reception of the light ray reflected by the first spectroscope for projecting image light rays to penetrate through the first spectroscope, a second spectroscope arranged in a transfer path of image light to enable the image light rays penetrating through the first spectroscope to penetrate through the second spectroscope, a reflector arranged in the transfer path of the image light rays for reflecting the image light rays penetrating through the second spectroscope such that the image light rays can be reflected to eyes of a user via a second light splitter, and a zoom assembly arranged on one side of the second light splitter in an alternating mode in order to adjust the effective focal distance of the virtual-display zoom lens. The virtual-display zoom lens utilizes a replaceable zoom assembly or utilizes a liquid crystal lens to change angles of the image light rays for adjusting the effective focal distance of the virtual-display zoom lens such that the enlargement ratio of virtual images saw by the user can be further adjusted.

Description

technical field [0001] The present invention relates to a virtual display zoom lens, in particular to a virtual display zoom lens with replaceable zoom components. Background technique [0002] With the development of display devices, the size and weight of the display devices have been miniaturized. In recent years, head mounted display (Head Mount Display, HMD) has been developed as an image display for virtual reality (Virtual Reality, VR) system to be worn on the user's head, and its application fields are becoming more and more extensive. . The head-mounted display is to place the display components in the form of glasses or helmets in front of the user's eyes, and project a virtual image to the user's eyes through a short distance to generate a wide-angle picture, and allow the user to receive image information anywhere. [0003] However, the effective focal length (Effective Focal Length) of the general head-mounted display is fixed (that is, the size of the virtual...

Claims

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Application Information

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IPC IPC(8): G02B27/01
CPCG02B27/0101
Inventor 游进洲陈俊民廖政顺
Owner SHINYOPTICS