CN202477651U - Turntable type visual testing chart - Google Patents
Turntable type visual testing chart Download PDFInfo
- Publication number
- CN202477651U CN202477651U CN2012200685448U CN201220068544U CN202477651U CN 202477651 U CN202477651 U CN 202477651U CN 2012200685448 U CN2012200685448 U CN 2012200685448U CN 201220068544 U CN201220068544 U CN 201220068544U CN 202477651 U CN202477651 U CN 202477651U
- Authority
- CN
- China
- Prior art keywords
- visual testing
- testing chart
- icons
- visual acuity
- acuity chart
- 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
A turntable type visual testing chart comprises a visual testing chart bottom plate and icons printed on the visual testing chart bottom plate. The visual testing chart bottom plate is circular, a hole is disposed in the circle center of the visual testing chart bottom plate, and the icons are annularly arrayed. Various letters or other icons capable of being used for testing can be selected to be used as the icons of the visual testing chart as needed. During usage, a fixing rod penetrates through the hole in the circle center of the visual testing chart bottom plate to be fixed to a wall or other testing places, the visual testing chart can rotate around the fixing rod, so that positions of the icons on the visual testing chart are not fixed, the behavior that a subject remembers the positions of the icons to improve a test result can be effectively prevented, and test results are more scientific and accurate.
Description
Technical field
This utility model relates to a kind of visual acuity chart, particularly a kind of rotating disc type visual acuity chart.
Background technology
In today that quality-oriented education is rooted in the hearts of the people, school more and more payes attention to Training Students'Ability, and wherein physical ability also is an important index; Many schools include student's vision in the term examination, and as deciding on awards through discussion a standard of appraising and choosing excellent, per term, school all can survey vision; Existing visual acuity chart is one and is printed on test alphabetic plane word table that the classmate's association that has is outstanding because want to let vision get, and recites visual acuity chart basically; So just do not reach the effect of surveying vision, survey meaningless that vision just becomes.If the rotating disc type visual acuity chart has been arranged, as long as a commentaries on classics gently, the position of symbol will change on the rotating disc type visual acuity chart, and the test that makes more has randomness, obtains result more accurately.
Summary of the invention
The purpose of this utility model is to provide a kind of rotating disc type visual acuity chart, after solving common visual acuity chart and putting up, surveys the fixed problem of vision letter.
For realizing above-mentioned purpose, the technical scheme that this utility model adopts is: a kind of rotating disc type visual acuity chart, and comprise the visual acuity chart base plate and be printed on the sighting target on the visual acuity chart base plate, the visual acuity chart base plate is circular, and circle centre position is provided with the hole, and sighting target adopts the annular array mode.The sighting target of visual acuity chart can be selected various letters or other icons that can test as required.During use, a hold-down bars is passed from the hole in the center of circle of visual acuity chart base plate, be fixed in wall or other testing locations, visual acuity chart can rotate around hold-down bars.
The advantage of this utility model is: the rotating disc type visual acuity chart of this utility model can arbitrarily rotate, and makes the picture mark position on the visual acuity chart unfixing, can prevent effectively that the experimenter from remembering the behavior that improves test result, and more science is accurate to make test result.
Description of drawings
Fig. 1 is the structural representation of this utility model, wherein: 1-visual acuity chart base plate, 2-sighting target, 3-hole.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described further.
As shown in Figure 1, a kind of rotating disc type visual acuity chart comprises visual acuity chart base plate 1 and is printed on the sighting target 2 on the visual acuity chart base plate that the visual acuity chart base plate is circular, and circle centre position is provided with hole 3, and sighting target adopts the annular array mode.The sighting target of visual acuity chart can be selected various letters or other icons that can test as required.During use, a hold-down bars is passed from the hole in the center of circle of visual acuity chart base plate, be fixed in wall or other testing locations, visual acuity chart can rotate around hold-down bars.
Claims (1)
1. a rotating disc type visual acuity chart comprises visual acuity chart base plate (1) and is printed on the sighting target (2) on the visual acuity chart base plate (1), it is characterized in that: visual acuity chart base plate (1) is for circular, and circle centre position is provided with hole (3), and sighting target (2) adopts the annular array mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200685448U CN202477651U (en) | 2012-02-29 | 2012-02-29 | Turntable type visual testing chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200685448U CN202477651U (en) | 2012-02-29 | 2012-02-29 | Turntable type visual testing chart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202477651U true CN202477651U (en) | 2012-10-10 |
Family
ID=46952117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200685448U Expired - Fee Related CN202477651U (en) | 2012-02-29 | 2012-02-29 | Turntable type visual testing chart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202477651U (en) |
-
2012
- 2012-02-29 CN CN2012200685448U patent/CN202477651U/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: 20121010 Termination date: 20130229 |