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Far image display device

A display device and display technology, applied in the field of optics, can solve problems such as elongated eye axis and affect the effect of myopia prevention and control, and achieve the effect of reducing hyperopia defocus and avoiding visual damage

Pending Publication Date: 2022-07-22
上海睿视健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the visual distance outside the central imaging area is still relatively short. When the ciliary muscle relaxes and adjusts, objects outside the central imaging area, such as screen frames, objects on the desktop, and walls, will be imaged behind the retina , so that the peripheral vision is in a state of hyperopia and defocus, and under certain circumstances, the eye axis will be elongated to affect the effect of myopia prevention and control

Method used

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Embodiment Construction

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0036] In the description of the embodiments of the present disclosure, it should be noted that, unless otherwise expressly specified and limited, the term "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection It can be a mechanical connection or...

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PUM

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Abstract

The invention relates to a far image display device which comprises a shell which comprises an outer shell forming an inner space and a support located in the inner space. The display device comprises a displayer and an adjusting lens, the adjusting lens comprises a first area arranged in the middle and a second area arranged on the periphery of the first area, and the diopter of the second area is larger than that of the first area; and the far image imaging assembly comprises a concave surface reflecting mirror, and the concave surface reflecting mirror forms an amplified virtual image of the display device so as to be used for long-distance watching. And the hyperopia defocus around the center of the visual field is reduced.

Description

technical field [0001] This patent belongs to the field of optics, and specifically relates to a telephoto display device. Background technique [0002] Excessive use of the eyes at close range is an important reason for the development of myopia in children. [0003] In the prior art, an optical zoom-out device is an effective method for preventing and controlling myopia by turning a close-range object into a distant virtual image through an optical method. However, when using the optical telephoto device, there are still some problems that affect the prevention and control of myopia. [0004] Due to the spherical shape of the eyeball, when the central visual field is clearly imaged on the retina, the peripheral visual field will be imaged behind the retina, resulting in hyperopia and defocusing. [0005] Using the optical telescopic device, the imaging area is limited to a certain range in the center of the visual field, and the image in the central field of view is zoom...

Claims

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Application Information

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IPC IPC(8): G02B17/08G09F9/30
CPCG02B17/08G09F9/30
Inventor 赵阳张江红沈文睿程德文姚俊
Owner 上海睿视健康科技有限公司