CN203693612U - Vision response time testing device - Google Patents
Vision response time testing device Download PDFInfo
- Publication number
- CN203693612U CN203693612U CN201420060722.1U CN201420060722U CN203693612U CN 203693612 U CN203693612 U CN 203693612U CN 201420060722 U CN201420060722 U CN 201420060722U CN 203693612 U CN203693612 U CN 203693612U
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- China
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- circuit
- response time
- brightness
- vision
- random delay
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Abstract
The utility model relates to a vision response time testing device. The vision response time testing device is used for testing various indexes of vision responses of the human body, and is of great significance for man-machine engineering and medical researching. At present, the adjusting fineness of luminance of vision response time testing devices on the market is not ideal enough, so that measurement is not accurate enough during the vision responses. The vision response time testing device comprises a shell (1), a master control circuit (2), a random time-delay circuit (3) and a luminance control circuit (4) are installed in the shell (1), an LCD display screen (5) and a testing operation panel (6) are installed on the shell (1), and the random time-delay circuit (3), the luminance control circuit (4) and the LCD display screen (5) are respectively connected with the master control circuit (2). The vision response time testing device is used for testing vision response time.
Description
technical field:
this utility model relates to a kind of human response's time tester, is specifically related to a kind of visual response time test set.
background technology:
the indices of testing human vision response, all has great importance for human engineering, medical research.Vision time delay has directly reflected the conduction time of neural impulse, and people, in the time of the neural impulse transmission retardances such as tired, drunk and pathology, can make the time obviously extend.So vision time delay can be used as the high risk industries operators' such as driving, manipulation basic physiological parameter, overall merit operator's basic physiological situation, the accident of avoiding tired manipulation to cause.Because also there will be vision time delay the early stage of some pathological state of human body, so this index also can be used as the basic test project of health check-up, for assessment of the sub-health state of human body, for early prevention, the treatment of disease provide foundation.In addition, the threshold value height of optic nerve has also directly reflected the health status on optical fundus, and test data when vision response has positive effect for the control of some ophthalmic diseasess.
the various features that vision self has has also proposed special requirement to design.First vision self has light adaptation and scotopic ability, under different ambient brightness conditions, optic nerve to experience threshold value not identical.Visual response time is also not quite similar.So require basically identical ambient brightness when test, i.e. complete black state.Another time feature of vision is exactly visual persistence phenomenon, the i.e. vision delay time of 200 to 400 milliseconds, the picture refreshing rate of animation or film is when higher than 24 frame per second, human eye just can not significantly have been differentiated the single frames process of picture, so rate of change must reasonably be controlled in the situation that brightness increases step by step.Moreover due to human eye, especially under low light environment, strong to the resolution capability of brightness, even can reach number of photons magnitude, the stepping therefore changing for system brightness has also proposed higher requirement.The adjusting fineness of the brightness of test set is all not ideal enough when vision response in the market, measures not accurate enough while causing vision response.
summary of the invention:
the purpose of this utility model is to provide a kind of visual response time test set, testing human visual response time, can directly reflect the conduction situation of neural impulse, evaluate the high risk industries operators such as driving, manipulation state in the time of the neural impulse transmission retardances such as tired, drunk and pathology, the accident of effectively avoiding tired manipulation to cause.
above-mentioned object realizes by following technical scheme:
a kind of visual response time test set, its composition comprises: housing, governor circuit, random delay circuit, brightness regulating circuit are housed in described housing, LCD display, test operation plate are housed on described housing, and described random delay circuit, described brightness regulating circuit and described LCD display are connected with governor circuit respectively.
described visual response time test set, on described test operation plate, there is LED lamp, button, LED brightness regulation knob, described LED lamp is connected with described governor circuit, described button is connected with described random delay circuit, and described LED brightness regulation knob is connected with described brightness regulating circuit.
described visual response time test set, described governor circuit comprises single chip circuit, frequency dividing circuit, second timing circuit, brightness gradual change circuit and LED drive circuit, described single chip circuit is connected with described random delay circuit, and described LED drive circuit is connected with described LED lamp, described brightness gradual change circuit respectively.
described visual response time test set, described random delay circuit comprises pulse generator, counting circuit.
beneficial effect:
1. this utility model, with LED lamp as visual stimulus signal, is measured subjects's response time: after button is pressed, produce a 0.1s-5s random delay, lightening LED lamp.Subjects, after LED lamp is lighted, discharges button, and the interval that is illuminated to button release from LED is the response time.Interval is measured with single-chip microcomputer, shown test results with LCD, measuring range is that 0-10s, resolution are 0.01ms, easy to operate, accuracy is high.
2. this utility model can change by LED brightness regulation knob the output of brightness regulating circuit, controls the brightness of LED lamp, measures the visual response time of subjects under the different visual stimulus signal of brightness.
3. random delay circuit of the present utility model comprises pulse generator and counting circuit, can within the scope of 0.1s-5s, produce the random delay signal of lightening LED lamp, effectively prevents that experimenter is because of repetitive operation, grasps and stimulates rule, the objectivity of impact test.
4. this utility model, with LED lamp as visual signal, is measured subjects's luminance resolution: after button is pressed, device enters the rate of change of one-level take the one thousandth of LED total brightness as stepping, each second, increase gradually the brightness of LED lamp.Subjects is seeing that lamp discharges button after bright, and on LCD, shows subjects's minimum brightness resolution rank, and measuring range is that 0.1-100.0%, resolution are 0.1%.
this utility model brightness gradual change circuit be one thousandth take LED lamp total brightness as stepping, increase gradually the automatic control circuit of LED lamp brightness.
accompanying drawing explanation:
accompanying drawing 1 is a kind of shell structure schematic diagram of the present utility model.
accompanying drawing 2 is that a kind of test operation plate of the present utility model is arranged schematic diagram.
accompanying drawing 3 is governor circuit theory diagrams in this utility model accompanying drawing 1.
accompanying drawing 4 is random delay circuit theory diagrams in this utility model accompanying drawing 1.
the specific embodiment:
embodiment 1:
a kind of visual response time test set, its composition comprises: housing 1, governor circuit 2, random delay circuit 3, brightness regulating circuit 4 are housed in described housing, LCD display 5, test operation plate 6 are housed on described housing, and described random delay circuit, described brightness regulating circuit and described LCD display are connected with governor circuit respectively.
embodiment 2:
according to the visual response time test set described in embodiment 1, on described test operation plate, there is LED lamp 14, button 15, LED brightness regulation knob 13, described LED lamp is connected with described governor circuit, described button is connected with described random delay circuit, and described LED brightness regulation knob is connected with described brightness regulating circuit.
embodiment 3:
according to the visual response time test set described in embodiment 1 or 2, described governor circuit comprises single chip circuit 10, frequency dividing circuit 7, second timing circuit 8, brightness gradual change circuit 9 and LED drive circuit 11, described single chip circuit is connected with described random delay circuit, and described LED drive circuit is connected with described LED lamp, described brightness gradual change circuit respectively.Described brightness gradual change circuit be one thousandth take LED lamp total brightness as stepping, increase gradually the automatic control circuit of LED lamp brightness.
embodiment 4:
according to the visual response time test set described in embodiment 1 or 2, described random delay circuit comprises pulse generator, counting circuit.
Claims (4)
1. a visual response time test set, its composition comprises: housing, it is characterized in that: governor circuit, random delay circuit, brightness regulating circuit are housed in described housing, LCD display, test operation plate are housed on described housing, and described random delay circuit, described brightness regulating circuit and described LCD display are connected with governor circuit respectively.
2. visual response time test set according to claim 1, it is characterized in that: on described test operation plate, there is LED lamp, button, LED brightness regulation knob, described LED lamp is connected with described governor circuit, described button is connected with described random delay circuit, and described LED brightness regulation knob is connected with described brightness regulating circuit.
3. visual response time test set according to claim 1 and 2, it is characterized in that: described governor circuit comprises single chip circuit, frequency dividing circuit, second timing circuit, brightness gradual change circuit and LED drive circuit, described single chip circuit is connected with described random delay circuit, and described LED drive circuit is connected with described LED lamp, described brightness gradual change circuit respectively.
4. visual response time test set according to claim 1 and 2, is characterized in that: described random delay circuit comprises pulse generator, counting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060722.1U CN203693612U (en) | 2014-02-10 | 2014-02-10 | Vision response time testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420060722.1U CN203693612U (en) | 2014-02-10 | 2014-02-10 | Vision response time testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203693612U true CN203693612U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420060722.1U Expired - Fee Related CN203693612U (en) | 2014-02-10 | 2014-02-10 | Vision response time testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203693612U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311363A (en) * | 2016-10-19 | 2017-01-11 | 沈阳建筑大学 | Vision efficiency test device |
| CN112337070A (en) * | 2020-11-04 | 2021-02-09 | 华侨大学 | Body reaction sensitivity testing device and testing method |
-
2014
- 2014-02-10 CN CN201420060722.1U patent/CN203693612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106311363A (en) * | 2016-10-19 | 2017-01-11 | 沈阳建筑大学 | Vision efficiency test device |
| CN112337070A (en) * | 2020-11-04 | 2021-02-09 | 华侨大学 | Body reaction sensitivity testing device and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160210 |