CN202981954U - Electronic visual chart system - Google Patents
Electronic visual chart system Download PDFInfo
- Publication number
- CN202981954U CN202981954U CN 201220635237 CN201220635237U CN202981954U CN 202981954 U CN202981954 U CN 202981954U CN 201220635237 CN201220635237 CN 201220635237 CN 201220635237 U CN201220635237 U CN 201220635237U CN 202981954 U CN202981954 U CN 202981954U
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- CN
- China
- Prior art keywords
- standard
- lcd computer
- character
- liquid crystal
- crystal display
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Eye Examination Apparatus (AREA)
Abstract
The utility model relates to an electronic visual chart system. The distance between a direction control handle (1) and a liquid crystal display computer (3) is a standard visual test distance, the direction control handle (1) is connected with the liquid crystal display computer (3) through a connecting wire (2), the liquid crystal display computer (3) displays black letterings on a white background according to the requirements of a visual chart, and the character size is displayed according to the standard visual chart. A testee indicates character directions by holding the direction control handle (1) with a hand, characters are reduced according to the standard if the testee correctly indicates the character directions and until the testee makes mistakes, the system automatically locks a vision result, and the result is displayed by a screen of the liquid crystal display computer (3).
Description
Technical field:
This utility model relates to a kind of electronic visual chart system, belongs to the examination of visual acuity healthcare field.
Background technology:
Current, test chart adopts the papery check table, and its inspection needs the professional to coordinate just to carry out, and application conditions is subjected to the restriction of the environment such as light.
Summary of the invention:
This utility model relates to a kind of electronic visual chart system, automatically gives a test of one's eyesight realizing, and the visual acuity test system of given check result.
For realizing above-mentioned purpose, this utility model adopts following technical scheme:
A kind of electronic visual chart system comprises:
Direction joystick (1), connecting line (2), LCD computer (3); As shown in Figure 1.
below in conjunction with accompanying drawing, technical construction of the present utility model and method are described: direction joystick (1) is the standard vision measuring distance apart from LCD computer (3), direction joystick (1) is connected by connecting line (2) with LCD computer (3), LCD computer (3) is by the visual acuity chart requirement, show white gravoply, with black engraved characters, its character boundary shows by standard visual acuity chart, the hand-held direction joystick of tested human (1) pointing character direction, as correctly, character dwindles by standard, until tested people makes mistakes, this moment, system automatically locked visual outcome, and the screen display result by LCD computer (3).
The beneficial effects of the utility model: check intuitively, easy to use, can check voluntarily, and automatically provide result.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model
The specific embodiment:
In order to make the technical solution of the utility model clearer, below in conjunction with drawings and Examples, this utility model is further described, instantiation described herein only in order to explain this utility model, is not limited to this utility model.
Embodiment:
see also shown in accompanying drawing 1, direction joystick (1) is the standard vision measuring distance apart from LCD computer (3), direction joystick (1) is connected by connecting line (2) with LCD computer (3), LCD computer (3) is by the visual acuity chart requirement, show white gravoply, with black engraved characters, its character boundary shows by standard visual acuity chart, the hand-held direction joystick of tested human (1) pointing character direction, as correctly, character dwindles by standard, until tested people makes mistakes, this moment, system automatically locked visual outcome, and the screen display result by LCD computer (3).
Claims (1)
1. an electronic visual chart system, comprise: direction joystick (1), connecting line (2), LCD computer (3); it is characterized in that: direction joystick (1) is the standard vision measuring distance apart from LCD computer (3), direction joystick (1) is connected by connecting line (2) with LCD computer (3), LCD computer (3) is by the visual acuity chart requirement, show white gravoply, with black engraved characters, its character boundary shows by standard visual acuity chart, the hand-held direction joystick of tested human (1) pointing character direction, as correctly, character dwindles by standard, until tested people makes mistakes, this moment, system automatically locked visual outcome, and the screen display result by LCD computer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635237 CN202981954U (en) | 2012-11-27 | 2012-11-27 | Electronic visual chart system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635237 CN202981954U (en) | 2012-11-27 | 2012-11-27 | Electronic visual chart system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202981954U true CN202981954U (en) | 2013-06-12 |
Family
ID=48553190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635237 Expired - Fee Related CN202981954U (en) | 2012-11-27 | 2012-11-27 | Electronic visual chart system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202981954U (en) |
-
2012
- 2012-11-27 CN CN 201220635237 patent/CN202981954U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131127 |