CN102961116A - Vision testing device - Google Patents
Vision testing device Download PDFInfo
- Publication number
- CN102961116A CN102961116A CN201210550378XA CN201210550378A CN102961116A CN 102961116 A CN102961116 A CN 102961116A CN 201210550378X A CN201210550378X A CN 201210550378XA CN 201210550378 A CN201210550378 A CN 201210550378A CN 102961116 A CN102961116 A CN 102961116A
- Authority
- CN
- China
- Prior art keywords
- stationary magazine
- magazine creel
- visual acuity
- acuity chart
- jacket casing
- 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.)
- Pending
Links
Images
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
The invention belongs to the field of vision testing devices, in particular to a vision testing device. The vision testing device comprises visual charts with designated symbols, and is characterized in that the quantity of the visual charts is at least two; the visual charts are fixedly connected to form an annular shape; the vision testing device further comprises a fixing cylinder; the visual charts are fitted with the outer wall of the fixing cylinder and surround the fixing cylinder to form a cylindrical shape; a cylinder sleeve matched with the fixing cylinder is arranged on the outer wall of the fixing cylinder; the cylinder sleeve is made of transparent material; and the visual charts are located between the fixing cylinder and the cylinder sleeve. The vision testing device has the benefits that when the vision testing device with the plurality of visual charts is used to test, the visual charts can be rotated to reflect the vision level of a testee to the largest extent, so as to better grasp the vision condition of the testee.
Description
?
Technical field
The invention belongs to the sight test means field, be specifically related to a kind of vision measuring device.
Background technology
Common sight test means normally be printed on above one various differences towards the visual acuity chart of tag mark, when the tester tests vision, usually point to certain tag mark by the tester, allow the tester argue direction its indication or opening, and the tag mark on all test charts its towards substantially the same, the tester who has is in when test and since can remember certain row tag mark towards, therefore tester's vision level caused interference, affected its proper testing.Therefore need to improve for above-mentioned defective, make sight test means can reflect really its real vision level of testee.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of simple in structure, easy to use and can farthest reflect the sight test means of the true vision level of testee.
Sight test means of the present invention is to solve above technical problem by following technical scheme:
A kind of sight test means comprises the visual acuity chart with designated symbol, and visual acuity chart has two at least, be fixedly connected with between the visual acuity chart circlewise, sight test means also comprises stationary magazine creel, and the outer wall of visual acuity chart and stationary magazine creel fits, and visual acuity chart becomes tubular around stationary magazine creel;
Jacket casing with matching is arranged on the stationary magazine creel outer wall, and jacket casing is transparent material, and visual acuity chart is between stationary magazine creel and jacket casing.
Visual acuity chart is four, also can set according to specific circumstances the number of visual acuity chart.
Stationary magazine creel is the cylinder of cylindrical drum or cuboid.
Top cover is arranged respectively at the top of stationary magazine creel and jacket casing, and the top cover of described stationary magazine creel and jacket casing is socketed with rotating shaft, and base is arranged at the rotating shaft bottom.
The height of described jacket casing is greater than the height of stationary magazine creel, and the height of described rotating shaft is greater than the height of jacket casing.
Beneficial effect of the present invention is, adopts the above sight test means with many visual acuity charts, when test, can rotate visual acuity chart, has farthest reflected the vision level of testee, thereby has helped better to grasp in the vision situation of testee.
Description of drawings
Fig. 1 is the structural representation of vision measuring device of the present invention;
Among the figure, 1-visual acuity chart, 2-stationary magazine creel, 3-jacket casing, 4-rotating shaft, 5-top cover I, 6-top cover II.
The specific embodiment
Come the present invention is further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art more understands the present invention, but do not limit the present invention with this.
Embodiment 1
A kind of sight test means, comprise the visual acuity chart 1 with designated symbol, visual acuity chart 1 has six, be fixedly connected with circlewise between the visual acuity chart 1, link to each other successively between the visual acuity chart 1, first visual acuity chart 1 links to each other with an end of last visual acuity chart 1, and sight test means also comprises columniform stationary magazine creel 2, visual acuity chart 1 fits with the outer wall of stationary magazine creel 2, and visual acuity chart 1 is around 2 one-tenth tubulars of stationary magazine creel;
On stationary magazine creel 2 outer walls jacket casing with matching is arranged, jacket casing is transparent material, and visual acuity chart 1 is between stationary magazine creel 2 and jacket casing 3.
Top cover I 5 and top cover II 6 are arranged respectively at the top of stationary magazine creel 2 and jacket casing 3, and the top cover I 5 of stationary magazine creel 2 and the top cover II 6 of jacket casing 3 are socketed with rotating shaft 4, and base 7 is arranged at rotating shaft 4 bottoms.
The height of jacket casing 3 is greater than the height of stationary magazine creel 2, and the height of rotating shaft 4 is greater than the height of jacket casing 3.
Between rotating shaft and stationary magazine creel, electricity-saving lamp can also be set, the clearer eyesight testing person of being of designated symbol on the visual acuity chart is recognized.
During use, by rotation rotating shaft 4, thereby drive jacket casing 3 and/or stationary magazine creel 2 rotations, make the visual acuity chart 1 that is printed on the unlike signal symbol aim at the tester.
Claims (3)
1. sight test means, comprise the visual acuity chart with designated symbol, it is characterized in that, described visual acuity chart has two at least, be fixedly connected with circlewise between the described visual acuity chart, described sight test means also comprises stationary magazine creel, and the outer wall of described visual acuity chart and stationary magazine creel fits, and described visual acuity chart covers the stationary magazine creel outer wall around stationary magazine creel;
On the described stationary magazine creel outer wall jacket casing with matching is arranged, described jacket casing is transparent material, and described visual acuity chart is between stationary magazine creel and jacket casing;
Top cover is arranged respectively at the top of stationary magazine creel and jacket casing, and the top cover of described stationary magazine creel and jacket casing is socketed with rotating shaft, and base is arranged at the rotating shaft bottom;
The height of described jacket casing is greater than the height of stationary magazine creel, and the height of described rotating shaft is greater than the height of jacket casing.
2. a kind of sight test means as claimed in claim 1 is characterized in that, described visual acuity chart is four.
3. a kind of sight test means as claimed in claim 1 is characterized in that, described stationary magazine creel is the cylinder of cylindrical drum or cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550378XA CN102961116A (en) | 2012-12-17 | 2012-12-17 | Vision testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210550378XA CN102961116A (en) | 2012-12-17 | 2012-12-17 | Vision testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102961116A true CN102961116A (en) | 2013-03-13 |
Family
ID=47791757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210550378XA Pending CN102961116A (en) | 2012-12-17 | 2012-12-17 | Vision testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102961116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913165A (en) * | 2017-11-13 | 2018-04-17 | 许玲毓 | A kind of vision training instrument independently manipulated |
-
2012
- 2012-12-17 CN CN201210550378XA patent/CN102961116A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107913165A (en) * | 2017-11-13 | 2018-04-17 | 许玲毓 | A kind of vision training instrument independently manipulated |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104287729B (en) | Meridians detection Apparatus for () and method therefor | |
| CN102331379A (en) | Wire bending tester | |
| CN108309255A (en) | Pulse profile data harvester | |
| CN102961116A (en) | Vision testing device | |
| CN203089078U (en) | Vision testing device | |
| CN105509610B (en) | Hole diameter detection apparatus | |
| CN104033146A (en) | Oil well perpendicularity measuring tool convenient to disassemble | |
| CN204246108U (en) | Eyesight detecting instrument | |
| CN202938827U (en) | Universal measuring range pole | |
| CN201691899U (en) | Rotatable visual testing chart | |
| CN104359796A (en) | System for measuring liquid viscosity | |
| CN102309311A (en) | Renewable visual chart | |
| CN203677054U (en) | Visual testing chart panel and visual testing chart lamp box | |
| CN202526147U (en) | Portable eyesight tester | |
| CN202235299U (en) | Updatable vision test chart | |
| CN102446244B (en) | Emergency-treatment specimen priority processing system for analytical test equipment | |
| CN203914864U (en) | Eyesight detecting instrument | |
| CN201894635U (en) | Rotary visual acuity chart | |
| CN201061521Y (en) | Adjustable test-chart | |
| CN106168557A (en) | A kind of wire rod fixing device of Novel wire cripping test device | |
| CN106768583A (en) | Isolator operating mechanism test device | |
| CN202929909U (en) | Improved dynamometer for teaching | |
| CN203117057U (en) | Novel torsion stress sensing device of torsion testing machine | |
| CN204731239U (en) | A kind of proving installation and test card thereof | |
| CN209027625U (en) | Liquid level detection device |
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: 20130313 |