CN201036550Y - Rotatable standard visual chart - Google Patents
Rotatable standard visual chart Download PDFInfo
- Publication number
- CN201036550Y CN201036550Y CNU2006201721408U CN200620172140U CN201036550Y CN 201036550 Y CN201036550 Y CN 201036550Y CN U2006201721408 U CNU2006201721408 U CN U2006201721408U CN 200620172140 U CN200620172140 U CN 200620172140U CN 201036550 Y CN201036550 Y CN 201036550Y
- Authority
- CN
- China
- Prior art keywords
- visual acuity
- vision test
- acuity chart
- vision
- charts
- 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 standard vision test chat, in particular to a vision test chat which can test the vision ability. A plurality of vision test charts 1 are wound on a rotary shaft 4, and the vision test charts 1 has standardized E letters arrayed in different ways. The rotary shaft 4 is arranged in a frame 2, and a transparent part at the front middle part of the frame 2 has an equal width with the vision test charts and is provided with a luminous lamp 3. As the vision test charts 1 are wound on the rotary shaft 4 and the standardized E letters in the vision test charts are arrayed in different ways, the revolving of the rotary shaft can turn the vision test chats onto the transparent part at the middle part for the use of the tested which is unable to know the array of the E letters in the vision test chart and to memorize the facing of the E letters, with the aim of cheating in the test.
Description
Technical field
This utility model relates to a kind of visual acuity chart of testing eyesight.
Background technology
Present visual acuity chart is unalterable, and artificially getting by under false pretences when testing eyesight of having defective vision arranged, and with each E word breach on the visual acuity chart towards reciting, to deal with inspection.
Summary of the invention
The purpose of this utility model aim to provide a kind of can not allow the people that has defective vision carry on the back down each E word breach on the visual acuity chart towards and the rotating standard visual acuity chart of getting by under false pretences.
The implementation of this utility model purpose is, rotating standard visual acuity chart, several visual acuity charts 1 are in rotating shaft 4, standard compliant E word is arranged by different orientations on each visual acuity chart 1, rotating shaft 4 is contained in the framework 2, illuminating lamp 2 with wide, and is equipped with to middle part transparent part 5 and visual acuity chart in framework the place ahead.
Each visual acuity chart 1 of the present utility model is in rotating shaft 4, standard compliant E word is arranged by different orientations on each visual acuity chart 1, rotating shaft, the visual acuity chart of different E word arrangement modes forwards the middle part transparent part to, use for being examined vision person, because of the inspected visual acuity chart of examiner's there is no telling is the visual acuity chart of the sort of E word arrangement mode, thus can not with each E word breach on the visual acuity chart towards reciting, to deal with inspection.This utility model can not allow the people that has defective vision carry on the back down each E word breach on the visual acuity chart towards and get by under false pretences.
Description of drawings
Fig. 1 is this utility model visual acuity chart unfolding state figure
Fig. 2 is this utility model structural representation
The specific embodiment
With reference to Fig. 2, several visual acuity charts 1 of the present utility model are in rotating shaft 4, standard compliant E word is arranged by different orientations on each visual acuity chart 1, rotating shaft, the visual acuity chart of different E word arrangement modes forward middle part transparent part, state as shown in Figure 1 to, use for being examined vision person, because of the inspected visual acuity chart of examiner's there is no telling is the visual acuity chart of the sort of E word arrangement mode, thus with each E word breach on the visual acuity chart towards reciting, to deal with inspection.
Claims (1)
1. rotating standard visual acuity chart, it is characterized in that several visual acuity charts (1) are in rotating shaft (4), each visual acuity chart (1) is gone up standard compliant E word and is arranged by different arrangement modes, rotating shaft (4) is contained in the framework (2), framework the place ahead middle part transparent part and visual acuity chart be with wide, and illuminating lamp (3) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201721408U CN201036550Y (en) | 2006-12-15 | 2006-12-15 | Rotatable standard visual chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201721408U CN201036550Y (en) | 2006-12-15 | 2006-12-15 | Rotatable standard visual chart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201036550Y true CN201036550Y (en) | 2008-03-19 |
Family
ID=39209056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201721408U Expired - Fee Related CN201036550Y (en) | 2006-12-15 | 2006-12-15 | Rotatable standard visual chart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201036550Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137110A (en) * | 2016-06-25 | 2016-11-23 | 利辛县眼病防治所 | A kind of visual acuity chart and using method thereof |
| CN109106331A (en) * | 2018-10-10 | 2019-01-01 | 李香港 | A kind of colour blindness detection device |
-
2006
- 2006-12-15 CN CNU2006201721408U patent/CN201036550Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137110A (en) * | 2016-06-25 | 2016-11-23 | 利辛县眼病防治所 | A kind of visual acuity chart and using method thereof |
| CN109106331A (en) * | 2018-10-10 | 2019-01-01 | 李香港 | A kind of colour blindness detection device |
| CN109106331B (en) * | 2018-10-10 | 2020-10-27 | 浙江大华集团嘉兴包装有限公司 | Color blindness detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |