An eye chart device with motion command control

A technology of action commands and eyesight, which is applied in the direction of eye testing equipment, medical science, diagnosis, etc., and can solve problems such as differences in ability to distinguish

Active Publication Date: 2022-06-21
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are also differences in the ability of patients to distinguish similar shapes such as the square characters "6, 8, 9, 2, 3" displayed on the digital tube.

Method used

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  • An eye chart device with motion command control
  • An eye chart device with motion command control
  • An eye chart device with motion command control

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Experimental program
Comparison scheme
Effect test

Embodiment

[0150] An eye chart device with action command control of the present invention includes a vision screen 1 , a control unit 2 , a keyboard 4 , a wristband sensor 3 , and a network module 5 .

[0151] The bracelet sensor 3 is used as a motion sensor. The wristband sensor 3 includes a wristband sensing module 30 and a receiver 31 .

[0152] The wristband sensing module 30 includes: a muscle sensing module and a nine-axis sensing module. The nine-axis sensing module includes: a three-axis orthogonal angle sensor, a three-axis orthogonal acceleration sensor, and a three-axis orthogonal geomagnetic sensor.

[0153] The control unit 2 is electrically connected with the vision screen 1 , the keyboard 4 , the receiver 31 and the network module 5 .

[0154] The bracelet sensing module 30 communicates with the receiver 31 wirelessly.

[0155] Keyboard 4, including wired keyboard and wireless keyboard, is used for inputting key signals.

[0156] The network module 5 is used to connec...

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PUM

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Abstract

The invention provides an eye chart device with action command control, which comprises an eye screen, a control unit, a keyboard, an action sensor, and a network module. The keyboard is used to input key signals. The network module is used to connect computer and network. The motion sensor is used for sensing and outputting a user's motion instruction signal. The vision screen is used to display test characters with different gray levels, different sizes and different contrasts. The vision screen does not need backlight and is not self-luminous, and the displayed content is visible by reflected light. The device obtains the vision evaluation SF by calculating the test distance S, screen size P, area number M, flexible value L, size level Dx1, background gray level Hd1, character gray level Db1, and anti-color coefficient F. The invention aims at the problem that the mainstream eye chart cannot be operated by a single person and does not meet the visual perception of patients with macular degeneration, and is suitable for both ordinary people and patients with macular degeneration, and the test content is richer.

Description

technical field [0001] The invention belongs to vision testing equipment, in particular to a vision chart device with action command control. [0002] Background of the Invention [0003] The quality of vision is an issue that everyone should always pay attention to. However, the visual inspection process using the existing mainstream eye chart needs to be completed by two people, and cannot be operated by one person. [0004] In addition, macular degeneration is a common medical disease. The macula is an important area of ​​the retina, located in the posterior pole of the eye, mainly related to visual functions such as fine vision and color vision. Once lesions appear in the macula, vision loss, dark shadows or visual distortions often occur. According to the description of macular degeneration patients, ordinary paper vision charts and vision charts with backlight boxes cannot meet the needs of patients. Patients are more sensitive to differences in grayscale and contrast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/032
CPCA61B3/032A61B3/022A61B3/0041
Inventor 周越菡邓健志郭炫邓卓洪陈学良
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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