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Adjusting amplitude tester and testing method thereof

A technology of adjusting range and tester, which is applied in the field of visual function inspection to achieve the effect of reducing precision and high accuracy of distance measurement

Pending Publication Date: 2021-01-22
TIANJIN VOCATIONAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The present invention mainly aims to provide a tester for accurately measuring the adjustment r

Method used

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  • Adjusting amplitude tester and testing method thereof
  • Adjusting amplitude tester and testing method thereof
  • Adjusting amplitude tester and testing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] like Figure 1-2 Shown, a kind of adjustment range tester, comprises CPU module and the liquid crystal touch screen display module that communicates with described CPU module connection, ranging sensor module 1, power supply module, light detection module 2 and buzzer module, in

[0049] The range-finding sensor module includes a range-finding transmitter unit and a range-finding receiving unit, and the liquid crystal touch screen display module includes a control button unit 5 in an integrated structure and a display unit 3 for displaying the visual mark 4, for measuring the display unit and The distance measuring sensor module for measuring the distance between subjects is fixed on the liquid crystal touch screen display module, and the light detection module for detecting light intensity is fixed on the liquid crystal touch screen display module.

[0050]During measurement, the display unit displays the visual mark, and the distance measuring sensor module measures ...

Embodiment 2

[0054] In this embodiment, on the basis of Embodiment 1, the model of each module is illustrated.

[0055] Preferably, the distance measuring sensor module is an ultrasonic distance measuring module, more preferably, the model is TELESKY US-100.

[0056] Preferably, the distance measuring sensor module is an infrared distance measuring sensor module, more preferably, the model is GP2Y0A41SK0F.

[0057] Preferably, the light detection module is an XH-M131 module.

[0058] As a preference, the LCD touch screen module is SDWe080YY05C capacitive touch 8 inches.

[0059] Preferably, the central processor module is a seeduino xiao central processor module.

[0060] Preferably, the buzzer module is KY-006.

[0061] Preferably, the power module is a TP4056 power module.

Embodiment 3

[0063] The testing method of the adjustment amplitude tester as described in embodiment 1 or embodiment 2, comprises the following steps:

[0064] Step 1. The subject wears glasses with fully corrected refractive errors, covers the left eye, and measures the adjustment range of the right eye. Hold the adjustment range tester described in Example 1 or Example 2 at 5 cm from the right eye, and test the adjustment range The brightness of the display unit of the instrument reaches 200 / Lx, and the light detection module detects the ambient illuminance value at the same time. When it exceeds 82 to 300 / Lx, the central processing module transmits it to the buzzer module to issue a warning, and the entire standard pair is displayed on the display unit 3. near vision chart;

[0065] Step 2, control the button unit 5 to select the last line of optotypes with the best vision of the subject, and display one of the optotypes in this row on the display unit 3, and place the optotypes in fron...

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Abstract

The invention provides an adjusting amplitude tester and a testing method thereof. The adjusting amplitude tester comprises a central processor module, and further comprises a liquid crystal touch screen display module, a distance measuring sensor module, a power supply module, a light detection module and a buzzer module which are in communication connection with the central processor module. Thedistance measuring sensor module comprises a distance measuring transmitting unit and a distance measuring receiving unit, the liquid crystal touch screen display module comprises a control key unitof an integrated structure and a display unit used for displaying sighting marks, the distance measuring sensor module used for measuring the distance between the display unit and a testee is fixed tothe liquid crystal touch screen display module, and the light detection module used for detecting the light intensity is fixed to the liquid crystal touch screen display module. According to the adjusting amplitude tester, the distance measuring sensor module is used for measuring the distance between the sighting marks and the testee, manual measurement is not needed, and the distance measuringaccuracy is high.

Description

technical field [0001] The invention relates to the technical field of visual function inspection, in particular to an adjustment range tester and a test method thereof. Background technique [0002] For the emmetropic eye, you can see clearly whether you are looking far or near. This is because when looking at a distant object, the eyes adjust to be still, and the focus formed by the parallel light rays emitted from the infinitely distant object after passing through the refractive system of the human eye is just on the retina. For close objects, the human eye can automatically change the curvature of the lens to change the refractive power of the human eye, so that the nearby objects are still imaged on the retina, and the object can be seen clearly. This ability to automatically change the refractive power of the eye is called the eye. adjust. [0003] The adjustment range is defined as the difference in the refractive power of the eye from the resting state of the huma...

Claims

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Application Information

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IPC IPC(8): A61B3/09
CPCA61B3/09
Inventor 张丙寅王丽萍王召雨祝亚斌王海英李伟豪王彦君
Owner TIANJIN VOCATIONAL INST
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