CN200994768Y - Device for changing visual-chart sequence - Google Patents
Device for changing visual-chart sequence Download PDFInfo
- Publication number
- CN200994768Y CN200994768Y CN 200720017512 CN200720017512U CN200994768Y CN 200994768 Y CN200994768 Y CN 200994768Y CN 200720017512 CN200720017512 CN 200720017512 CN 200720017512 U CN200720017512 U CN 200720017512U CN 200994768 Y CN200994768 Y CN 200994768Y
- Authority
- CN
- China
- Prior art keywords
- visual acuity
- acuity chart
- rotation box
- utility
- rotating shaft
- Prior art date
- 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 a device which can change the order of visual acuity test chart. The utility model is characterized in that a foursquare rotating box (2) with a rotating axle (5) is arranged on a visual acuity test chart box (1), a lamp pipe (3) is arranged inside the foursquare rotating box (2), a rotary knob (4) is fixed at the end part of the rotating axle (5).
Description
Technical field: this utility model relates to the medical device technical field, is a kind of device of convertible visual acuity chart order more specifically.
Background technology: the lexicographic order on the visual acuity chart of the place use that gives a test of one's eyesight is fixed, and the measured is that the purpose that reaches oneself is remembered visual acuity chart lexicographic order sometimes, does not conform to the actual conditions and will cause adverse effect in case testee's vision takes place this situation.
Summary of the invention: for overcoming above-mentioned shortcoming, the purpose of this utility model is the device of a kind of convertible visual acuity chart order of design.Its technical scheme is: the cubic rotation box 2 of band rotating shaft 5 is arranged on the visual acuity chart case 1, in the cubic rotation box 2 fluorescent tube 3 is arranged, and is fixed with knob 4 on the end of rotating shaft 5.The advantage of this utility model is: the apparatus structure practicality reasonable in design of this convertible visual acuity chart order, on four limits of cubic rotation box, arrange the letter that gives a test of one's eyesight of different order respectively, rotatable conversion is with accurate test vision during by people detection, its novelty that is skillfully constructed is manipulated simple and convenient being worthy of popularization.
Description of drawings: this accompanying drawing is this utility model structural representation.In the accompanying drawing: 1, visual acuity chart case, 2, cubic rotation box, 3, fluorescent tube, 4, knob, 5, rotating shaft.
The specific embodiment: the cubic rotation box 2 of band rotating shaft 5 is arranged on the visual acuity chart case 1, in the cubic rotation box 2 fluorescent tube 3 is arranged, and is fixed with knob 4 on the end of rotating shaft 5.On four limits of cubic rotation box 2, stamp the letter that gives a test of one's eyesight of arranging different order respectively, when giving a test of one's eyesight, fluorescent tube 3 energisings are lighted, can be alphabetical with accurate test vision during by people detection by giving a test of one's eyesight of the different order on four limits of knob 4 rotational transforms.
Claims (1)
1, a kind of device of convertible visual acuity chart order, it is characterized in that: the cubic rotation box (2) of band rotating shaft (5) is arranged on the visual acuity chart case (1), and fluorescent tube (3) is arranged in the cubic rotation box (2), is fixed with knob (4) on the end of rotating shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720017512 CN200994768Y (en) | 2007-01-17 | 2007-01-17 | Device for changing visual-chart sequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720017512 CN200994768Y (en) | 2007-01-17 | 2007-01-17 | Device for changing visual-chart sequence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200994768Y true CN200994768Y (en) | 2007-12-26 |
Family
ID=38993181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720017512 Expired - Fee Related CN200994768Y (en) | 2007-01-17 | 2007-01-17 | Device for changing visual-chart sequence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200994768Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309311A (en) * | 2011-09-14 | 2012-01-11 | 张潇予 | Renewable visual chart |
| CN111568364A (en) * | 2020-04-02 | 2020-08-25 | 李发标 | Vision detection device |
-
2007
- 2007-01-17 CN CN 200720017512 patent/CN200994768Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309311A (en) * | 2011-09-14 | 2012-01-11 | 张潇予 | Renewable visual chart |
| CN111568364A (en) * | 2020-04-02 | 2020-08-25 | 李发标 | Vision detection device |
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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: 20071226 |