CN103349541A - Adjustable visual testing chart - Google Patents
Adjustable visual testing chart Download PDFInfo
- Publication number
- CN103349541A CN103349541A CN 201310267742 CN201310267742A CN103349541A CN 103349541 A CN103349541 A CN 103349541A CN 201310267742 CN201310267742 CN 201310267742 CN 201310267742 A CN201310267742 A CN 201310267742A CN 103349541 A CN103349541 A CN 103349541A
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- Prior art keywords
- positioning panel
- character body
- visual acuity
- character
- acuity chart
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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.)
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Abstract
The invention provides an adjustable visual testing chart which comprises a positioning panel and character bodies, wherein the character bodies are rotationally connected with the positioning panel through magnetic buttons. The positioning panel and the character bodies are rotationally connected through magnets, when vision is tested, a doctor can rotate the character bodies and change directions of characters at random, so that some examinees are prevented from muddling through by memorizing the directions of the characters. The adjustable visual testing chart is simple in structure, reasonable in structure and convenient to operate, and has wide promotion and usage values.
Description
Technical field
The present invention relates to a kind of visual acuity chart, relate in particular to a kind of character direction scalable visual acuity chart.
Background technology
In the existing eyesight test method, the most frequently used is to hang a sheet of planar visual acuity chart at tester's dead ahead, because the character direction on traditional plane visual acuity chart remains unchanged, want the people that in eyesight testing, practises fraud, as long as remember the character direction in the visual acuity chart, just can get by under false pretences, particularly vision is had in the choice examination of specific (special) requirements at some, insecure like this method of testing, the tester for other obviously is unfair.
Summary of the invention
The objective of the invention is provides a kind of adjusting visual acuity chart for above problem.
The objective of the invention is to realize by following technical scheme:
A kind of adjusting visual acuity chart comprises positioning panel and character body, is rotationally connected by magnetic clasp between described character body and the positioning panel.
Described character body is the chip card that is printed on the E word of corresponding size.
Described magnetic clasp is arranged on axle center, character body back side place and with it on the positioning panel of correspondence position.
With respect to prior art, the invention has the beneficial effects as follows: because be rotationally connected by Magnet between described positioning panel and the character body, when giving a test of one's eyesight, the doctor can at will rotate character body, change the direction of character, prevent that some testers from remembering the direction of character and get by under false pretences, the present invention is simple in structure, reasonable in design, easy and simple to handle, have widely promotional value and use value.
Description of drawings
Fig. 1 is Facad structure sketch map of the present invention;
Fig. 2 is side structure sketch map of the present invention.
Among the figure: 1-positioning panel, 2-character body, 3-magnetic clasp.
The specific embodiment
Now by reference to the accompanying drawings specific embodiments of the invention are described below:
As shown in Figure 1, adjusting visual acuity chart of the present invention comprises positioning panel 1 and character body 2, and described character 2 and positioning panel 1 is rotationally connected by magnetic clasp 3.
More than specific embodiments of the invention are described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (3)
1. regulate visual acuity chart for one kind, it is characterized in that, comprise positioning panel and character body, be rotationally connected by magnetic clasp between described character body and the positioning panel.
2. adjusting visual acuity chart according to claim 1 is characterized in that, described character body is the chip card that is printed on the E word of corresponding size.
3. adjusting visual acuity chart according to claim 2 is characterized in that, described magnetic clasp is arranged on axle center, character body back side place and with it on the corresponding positioning panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310267742 CN103349541A (en) | 2013-06-28 | 2013-06-28 | Adjustable visual testing chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310267742 CN103349541A (en) | 2013-06-28 | 2013-06-28 | Adjustable visual testing chart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103349541A true CN103349541A (en) | 2013-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310267742 Pending CN103349541A (en) | 2013-06-28 | 2013-06-28 | Adjustable visual testing chart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103349541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662330A (en) * | 2016-03-16 | 2016-06-15 | 付虎 | Visual chart |
| CN106137111A (en) * | 2016-06-25 | 2016-11-23 | 利辛县眼病防治所 | A kind of anti-cheating visual acuity chart and using method thereof |
-
2013
- 2013-06-28 CN CN 201310267742 patent/CN103349541A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662330A (en) * | 2016-03-16 | 2016-06-15 | 付虎 | Visual chart |
| CN106137111A (en) * | 2016-06-25 | 2016-11-23 | 利辛县眼病防治所 | A kind of anti-cheating visual acuity chart and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131016 |