CN102743149A - Vision detecting device with replaceable visual charts - Google Patents
Vision detecting device with replaceable visual charts Download PDFInfo
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- CN102743149A CN102743149A CN 201210215991 CN201210215991A CN102743149A CN 102743149 A CN102743149 A CN 102743149A CN 201210215991 CN201210215991 CN 201210215991 CN 201210215991 A CN201210215991 A CN 201210215991A CN 102743149 A CN102743149 A CN 102743149A
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- visual acuity
- acuity chart
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- chart
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Abstract
The invention discloses a vision detecting device with replaceable visual charts, comprising a box body, a visual chart, a standby visual chart, a lighting device, a driving shaft, a transmission shaft and a driving device, wherein the visual chart and the standby visual chart are arranged in the box body and wound into a closed ring through a rolling shaft; the driving device is connected with the rolling shaft; and the visual chart and the standby visual chart are mutually switched under the drive of the rolling shaft. The vision detecting device has the beneficial effects that different visual charts can be freely switched, the condition that a testee remembers the contents of the visual charts in advance is stopped, and the fairness of visual test is improved.
Description
Technical field
The present invention relates to a kind of visual acuity chart lamp box, relate in particular to a kind of vision checkout gear of replaceable visual acuity chart.
Background technology
Visual acuity chart is a kind of figure that tests vision, last a few row's symbols or the letter of printing of figure, and each arranges not of uniform size, and the vision power is judged with symbol or the alphabetical size that can see clearly.The visual acuity chart lamp box is that visual acuity chart is placed bright illumination place of lamp box, makes the testee under suitable illumination, test vision, in order to guarantee the accuracy of eyesight testing.In the testee, have one or two people sometimes and attempt cheating for some reason, remember that this has just influenced the correctness and the fairness of eyesight testing to the arrangement regulation of respectively arranging symbol or letter on the visual acuity chart in advance.
Summary of the invention
The object of the present invention is to provide a kind of vision checkout gear of replaceable visual acuity chart; Through at lamp box set inside spool; Make that several different visual acuity charts can roll display, overcome the deficiency that traditional visual acuity chart lamp box can not be changed visual acuity chart, thereby realize the object of the invention.
The technical problem that the present invention solved can adopt following technical scheme to realize:
A kind of vision checkout gear of replaceable visual acuity chart; Comprise casing, be arranged on intravital illuminator of case and visual acuity chart; It also comprises a power transmission shaft, a driving shaft and a driving device, the said visual acuity chart ring-type visual acuity chart that main visual acuity chart and subsequent use visual acuity chart are formed by connecting of serving as reasons, and said ring-type visual acuity chart is arranged on the casing through power transmission shaft and driving shaft; And can be around power transmission shaft and drive shaft turns, said driving device is connected with driving shaft.
Further, said driving device is a driving handle or drive motors.
Beneficial effect of the present invention is:
Can freely switch different visual acuity charts, stop the tester and carried on the back the situation of visual acuity chart content down in advance, increase the fairness of eyesight testing.
Description of drawings
Fig. 1 is the structure chart of the vision checkout gear of replaceable visual acuity chart of the present invention.
Fig. 2 is the inner structure chart of vision checkout gear of replaceable visual acuity chart of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with the specific embodiment, further set forth the present invention.
As depicted in figs. 1 and 2, the vision checkout gear for replaceable visual acuity chart of the present invention comprises casing 100, is arranged on ring-type visual acuity chart 110, power transmission shaft 130, driving shaft 120, driving device 140 and the driving handle 141 of casing 100.
Be provided with the required illuminator of vision checkout gear in the casing 100, like daylight lamp.
Ring-type visual acuity chart 110 is formed by connecting main visual acuity chart and subsequent use visual acuity chart, and ring-type visual acuity chart 110 is arranged on the casing 100 through power transmission shaft 130 and driving shaft 120, can rotate around power transmission shaft 130 and driving shaft 120 simultaneously.
For the automatization of implement device, this driving device 140 specifically can be provided with drive motors.
Can realize in the vision checkout gear based on such scheme formation that main visual acuity chart and subsequent use visual acuity chart switch each other under the drive of power transmission shaft 130 and driving shaft 120.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the description just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. the vision checkout gear of a replaceable visual acuity chart; Comprise casing, be arranged on intravital illuminator of case and visual acuity chart, it is characterized in that, said vision checkout gear also comprises a power transmission shaft, a driving shaft and a driving device; The said visual acuity chart ring-type visual acuity chart that main visual acuity chart and subsequent use visual acuity chart are formed by connecting of serving as reasons; Said ring-type visual acuity chart is arranged on the casing through power transmission shaft and driving shaft, and can be around power transmission shaft and drive shaft turns, and said driving device is connected with driving shaft.
2. the vision checkout gear of replaceable visual acuity chart as claimed in claim 1 is characterized in that, said driving device is a driving handle or drive motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210215991 CN102743149A (en) | 2012-06-27 | 2012-06-27 | Vision detecting device with replaceable visual charts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210215991 CN102743149A (en) | 2012-06-27 | 2012-06-27 | Vision detecting device with replaceable visual charts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102743149A true CN102743149A (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210215991 Pending CN102743149A (en) | 2012-06-27 | 2012-06-27 | Vision detecting device with replaceable visual charts |
Country Status (1)
| Country | Link |
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| CN (1) | CN102743149A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468205A (en) * | 2017-09-11 | 2017-12-15 | 刘寒冰 | The multi-functional automatic detection eyesight case that a kind of ophthalmology section office use |
| CN109394165A (en) * | 2018-10-26 | 2019-03-01 | 刘华溢 | A kind of self-help type optometric apparatus |
| CN109480758A (en) * | 2018-12-27 | 2019-03-19 | 秦洪珍 | The movable visual chart of ophthalmology |
-
2012
- 2012-06-27 CN CN 201210215991 patent/CN102743149A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468205A (en) * | 2017-09-11 | 2017-12-15 | 刘寒冰 | The multi-functional automatic detection eyesight case that a kind of ophthalmology section office use |
| CN109394165A (en) * | 2018-10-26 | 2019-03-01 | 刘华溢 | A kind of self-help type optometric apparatus |
| CN109394165B (en) * | 2018-10-26 | 2021-02-09 | 枣庄市立医院 | Self-service eyesight testing device |
| CN109480758A (en) * | 2018-12-27 | 2019-03-19 | 秦洪珍 | The movable visual chart of ophthalmology |
| CN109480758B (en) * | 2018-12-27 | 2021-08-10 | 秦洪珍 | Movable visual acuity chart for ophthalmology |
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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: 20121024 |