CN2577762Y - Controllable rotary visual acuity test chart - Google Patents
Controllable rotary visual acuity test chart Download PDFInfo
- Publication number
- CN2577762Y CN2577762Y CN 02272766 CN02272766U CN2577762Y CN 2577762 Y CN2577762 Y CN 2577762Y CN 02272766 CN02272766 CN 02272766 CN 02272766 U CN02272766 U CN 02272766U CN 2577762 Y CN2577762 Y CN 2577762Y
- Authority
- CN
- China
- Prior art keywords
- visual acuity
- rotating shaft
- chart
- driven rotating
- remote control
- 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 controllable rotary visual acuity chart which solves the deficiency of inconvenient use and easily remembered characters on the chart of the existing visual acuity chart. The controllable rotary visual acuity chart is composed of a box body and a remote control device, wherein, the box body is composed of driven rotating shaft wheels, a motor driving rotating shaft wheel provided with a receiving remote control device, a visible window hole, a light source and a visual acuity character chart belt; the four driven rotating shaft wheels are respectively positioned on four corners of the box body and are successively connected via the visual acuity character chart belt as a driving belt, wherein, one driven rotating shaft wheel is connected with the motor driving rotating shaft wheel provided with a receiving remote control device via a driving belt. The light source is positioned between the box body of the controllable rotary visual acuity chart, and the visible window hole is positioned on the middle part of the front side of the box body. Thus, characters to be measured can be controlled to move up and down via a remote controller, so as to realize the goal of the utility model and to effectively control falsification action in physical examinations.
Description
Technical field
This utility model relates to a kind of eye chart, exactly is a kind of controllable type, rotary type visual acuity chart.
Background technology
The domestic and international at present visual acuity chart that uses has multiple, and wherein a kind of character face that will detect is fixed in the case of being with light source, and this class visual acuity chart has characteristics simple in structure, easy to use.Fix but detect character, the person under inspection is easy to detections character is learnt off, and can not guarantee the accuracy and the fairness that detect, and light source is inhomogeneous, can not keep detecting character and eyes on same horizontal line, uses inadequately to make things convenient for.
Summary of the invention
The technical problem that solves:
For the deficiency of remembering easily carried on the back in the character that solves existing eye chart, with the accuracy of assurance detection and the purpose of practicality.This utility model provides a kind of controllable type, rotary type visual acuity chart, can effectively address the above problem.
The technical scheme of technical solution problem:
Solution of the present utility model is controllable type, rotary type visual acuity chart, is made up of casing (6) and two parts of remote control unit.Form by motor active rotation arbor wheel (2), visual fenestra (3), light source (4), the vision character watchband (5) of driven rotating shaft wheel (1), band reception remote control unit in the casing; Four driven rotating shaft wheels (1) lay respectively on four interior angles of casing (6), connected successively as driving-belt by vision character watchband (5) between four driven rotating shaft wheels (1), one of them driven rotating shaft wheel (1) is connected with the motor active rotation arbor wheel (2) that band receives remote control unit by driving-belt; Light source (4) is positioned at the centre of controllable type, rotary type visual acuity chart casing (6); Visual fenestra (3) is positioned at the positive middle part of casing (6).It is upper and lower mobile to control tested character by remote controller like this.Thereby realization the purpose of this utility model.
Beneficial effect:
This utility model adopts the rotation of the main shaft wheel control character of motor, but tested character regulated at will can be controlled the behavior of playing tricks in the health check-up effectively.It is simple in structure, and is easy to use.
Description of drawings
Fig. 1 is a profile of the present utility model.
Among the figure 1, driven rotating shaft wheel, 2, motor active rotation arbor wheel, 3, visual fenestra, 4, light source, 5, vision character watchband, 6, casing.
The specific embodiment
Below in conjunction with accompanying drawing in detail this utility model embodiment is described in detail.
As shown in the figure: controllable type, rotary type visual acuity chart, by being that two parts of casing (6) and remote control unit are formed, it is characterized in that casing interior motor active rotation arbor wheel (2), visual fenestra (3), light source (4), vision character watchband (5), form by driven rotating shaft wheel (1), band reception remote control unit; Four driven rotating shaft wheels (1) lay respectively on four interior angles of casing (6), connected successively as driving-belt by vision character watchband (5) between four driven rotating shaft wheels (1), one of them driven rotating shaft wheel (1) is connected with the motor active rotation arbor wheel (2) that band receives remote control unit by driving-belt; Light source (4) is positioned at the centre of controllable type, rotary type visual acuity chart casing (6); Visual fenestra (3) is positioned at the positive middle part of casing (6).Visual fenestra (3) but interior adjacent lines sighting target arbitrary combination show, control by remote controller.It is upper and lower mobile to control tested character by remote controller like this.Thereby realization the purpose of this utility model.
Using method: with remote controller control motor remote control unit, after active rotation arbor wheel (2) receives instruction, promptly drive driven rotating shaft wheel (1) and rotate, driven rotating shaft wheel (1) drives vision character watchband (5) motion, makes the character that needs survey rest on visual fenestra (3) and locates.
Claims (1)
- Controllable type, rotary type visual acuity chart, form by casing (6) and two parts of remote control unit, it is characterized in that casing interior motor active rotation arbor wheel (2), visual fenestra (3), light source (4), vision character watchband (5), form by driven rotating shaft wheel (1), band reception remote control unit; Four driven rotating shaft wheels (1) lay respectively on four interior angles of casing (6), connected successively as driving-belt by vision character watchband (5) between four driven rotating shaft wheels (1), one of them driven rotating shaft wheel (1) is connected with the motor active rotation arbor wheel (2) that band receives remote control unit by driving-belt; Light source (4) is positioned at the centre of controllable type, rotary type visual acuity chart casing (6); Visual fenestra (3) is positioned at the positive middle part of casing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02272766 CN2577762Y (en) | 2002-08-28 | 2002-08-28 | Controllable rotary visual acuity test chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02272766 CN2577762Y (en) | 2002-08-28 | 2002-08-28 | Controllable rotary visual acuity test chart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577762Y true CN2577762Y (en) | 2003-10-08 |
Family
ID=33737399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02272766 Expired - Fee Related CN2577762Y (en) | 2002-08-28 | 2002-08-28 | Controllable rotary visual acuity test chart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577762Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105996974A (en) * | 2016-06-25 | 2016-10-12 | 利辛县眼病防治所 | Portable and changeable visual acuity chart box |
-
2002
- 2002-08-28 CN CN 02272766 patent/CN2577762Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105996974A (en) * | 2016-06-25 | 2016-10-12 | 利辛县眼病防治所 | Portable and changeable visual acuity chart box |
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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 |