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Eyesight testing instrument

A detector and vision technology, applied in the field of vision detectors, can solve problems such as physical health and unpleasant daily life

Inactive Publication Date: 2017-12-08
湖州靖源信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of the subject of visual acuity testing, when people feel that there may be problems with vision, the testing is carried out. The consequences of this passive testing often bring unpleasant effects to health and daily life.

Method used

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Embodiment Construction

[0019] The embodiments involved in the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] combine figure 1 and figure 2 , a kind of visual acuity tester, comprises eyepiece barrel 2, rotating barrel 3 and objective lens barrel 5, is provided with eyepiece lens 21 in eyepiece barrel 2, is provided with objective lens 51 in objective lens barrel 5, is provided with first plane mirror 31 in rotating barrel 3 And the second plane mirror 32, the first plane mirror 31 is located at the eyepiece barrel 2 side, the second plane mirror 32 is located at the objective lens barrel 5 side, the lower end of the eyepiece barrel 2 and the upper end of the rotating tube 3 are rotatably connected by threads, and the upper end of the objective lens barrel 5 And the lower end of rotating drum 3 is also rotatably connected by thread.

[0021] The first plane mirror 31 moves clockwise with the thread, and the second plane mirror 32...

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Abstract

The invention provides an eyesight testing instrument. The eyesight testing instrument comprises an eyepiece sleeve, a rotary cylinder and an objective lens sleeve and is characterized in that an eyepiece lens is arranged in the eyepiece sleeve, an objective lens is arranged in the objective lens sleeve, a first plane mirror and a second plane mirror are arranged in the rotary cylinder, the first plane mirror is arranged on the eyepiece sleeve side, the second plane mirror is arranged on the objective lens sleeve side, the lower end of the eyepiece sleeve is rotatably connected with the upper end of the rotary cylinder in a threaded manner, and the upper end of the objective lens sleeve is rotatably connected with the lower end of the rotary cylinder in a threaded manner. The eyesight testing instrument has the advantages that by combining mini lenses with a smartphone application, a user can accurately test the eyesight of himself or herself and can well protect the eyes, eyesight tests are performed by a fun method, and the eyesight testing instrument is convenient to use, small in size, complete in function, capable of being carried about and capable of performing self-tests anytime and anywhere.

Description

technical field [0001] The invention relates to the technical field of optometry instruments, in particular to a vision tester. Background technique [0002] Most of the current visual acuity tests use eye charts, which must be performed in a fixed place, in a larger space, and in an environment with standard eye chart brightness. From the perspective of the subject of visual acuity detection, when people feel that there may be a problem with their vision, the detection is carried out. The consequences of this passive detection often bring unpleasant effects to health and daily life. If it changes from passive detection to active detection, from an objective and necessary detection environment to a self-test anytime and anywhere, it will provide great protection for people's vision protection and physical health. Contents of the invention [0003] (1) Solved technical problems [0004] In order to solve the above problems, the present invention provides a vision tester, ...

Claims

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Application Information

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IPC IPC(8): A61B3/028
CPCA61B3/0285
Inventor 王淑琴
Owner 湖州靖源信息技术有限公司
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