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Single-barrel testing scope for eyesight

A vision test, monocular technology, applied in the field of optometry equipment, to achieve the effect of perfect function, eye health, simple structure

Inactive Publication Date: 2008-10-22
张焕旭 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the eye charts used to test eyesight on the market are printed eye charts. Although there are many forms of this eye chart, their common point must be in a fixed place, a large space, and an environment with standard eye chart brightness. Able to perform vision test

Method used

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  • Single-barrel testing scope for eyesight
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  • Single-barrel testing scope for eyesight

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Embodiment Construction

[0016] The present invention is described in detail below in conjunction with accompanying drawing:

[0017] Figure 1, figure 2 , Fig. 3, monocular visual acuity test mirror, comprise eyepiece 6 and objective lens 5, central cylinder 3, sliding cylinder 10, rotating cylinder 9, in its inner cavity of described central cylinder 3, be provided with bushing 4, pass through this bushing 4. The eyepiece 6 is arranged at the front end of the central tube 3, and the objective lens 5 is arranged at the rear end of the central tube 3; the eyepiece 6 of the present invention is composed of symmetrically combined eyepieces. The outer surface of the central cylinder 3 is symmetrically provided with a slideway, and the sliding cylinder 10 is connected to the outer periphery of the central cylinder 3 through a chute corresponding to the slideway, so that the sliding cylinder 10 can move along the slideway relative to the central cylinder 3. Axial sliding. The front section of the sliding ...

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Abstract

The invention relates to field of visual and optical instrument. It is characterized in that the front of central tube and inner cave is equipped with eye lens, the back is equipped with object lens; the outer surface of central tube is equipped with slide track symmetrically, and the slide tube is equipped with slide slot relative with said slide track. The slide tube is installed out of central tube through slide slot, the front of slide tube is equipped with outer screw thread, the revolving tube is connected with slide tube through inner screw thread, the front of revolving tube is connected with central tube through adjustable binding ring to rotate relatively, and the adjustable binding ring is connected to front outer surface of central tube with screw thread. The back of slide tube is connected with visual target rubber cover, the end surface of slide tube in said rubber cover is equipped with visual target board; the outer side of exposed part of slide tube is equipped with reading scale relative with visual target board. The invention is characterized by simple structure, convenient carry, perfect functions of releasing eye fatigue, and eye health care.

Description

technical field [0001] The invention relates to the technical field of optometry instruments, in particular to a monocular vision test mirror. Background technique [0002] Most of the eye charts used to test eyesight on the market are printed eye charts. Although there are many forms of this eye chart, their common point must be in a fixed place, a large space, and an environment with standard eye chart brightness. Able to perform vision tests. From the perspective of the subject of vision detection, when people feel that there may be a problem with vision, they will carry out detection. The consequences of this passive detection often bring unpleasant effects to health and life. If the passive detection is changed to active detection, From an objective and necessary testing environment to a self-testing action that can be used anywhere, it will provide great protection for people's vision protection and health. Contents of the invention [0003] Aiming at the deficienc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/032
Inventor 魏庆彪张焕旭
Owner 张焕旭
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