CN2059574U - Measuring instrument of dark adaption - Google Patents
Measuring instrument of dark adaption Download PDFInfo
- Publication number
- CN2059574U CN2059574U CN 89209656 CN89209656U CN2059574U CN 2059574 U CN2059574 U CN 2059574U CN 89209656 CN89209656 CN 89209656 CN 89209656 U CN89209656 U CN 89209656U CN 2059574 U CN2059574 U CN 2059574U
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- sighting target
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Abstract
The utility model relates to a testing instrument of dark adaption controlled by a microcomputer (a single-board computer), which comprises a light controlling device, a visual target selecting and recognizing device, a visual target testing and answering device, an optical surveillance device and a test result displaying device. The testing instrument realizes the automatic processing of the test procedure and the test result, which reduces human intervention in the test procedure. The utility model has the advantages of high precision and convenient operation. Simultaneously, the testing instrument is provided with the optical surveillance system which can control the test condition and make a correct judge. In addition, because the testing instrument has a longer hermetic box body, the simulated test condition is similar to the natural environment, which ensures the test quality.
Description
This utility model is a kind of testing staff, automobile driver for example, the electronic tester of dark adaptation ability.
Dark adaptation is a kind of physiology-psychological phenomenon of people, when people soon from a kind of lighting environment (under high light or the sun exposure), when entering another kind of lighting environment (utmost point low light level or single chamber) suddenly, because eyes can not adapt to this intensity variation at once and can produce temporary visual disorder, need be through after a while, eye function could adapt to new lighting environment and recover normal, and the process (time) that this section recovers eye function promptly is dark adaptation.Requirement in some occupations; the practitioner should have dark adaptation ability preferably; for example; automobile driver in the process of moving, runs into through regular meeting and to meet at night; the tunnel that turnover is long etc.; lighting environment situation jumpy, and accident is usually made in the rapid variation of this lighting environment again easily.Therefore detect the dark adaptation ability of automobile driver, to reducing vehicle accident, guarantee driving safety is crucial, the dark adaptation tester, normally simulate illumination environment jumpy, the tested personnel's of fast measuring incomplete dark adaptation time, but its complex structure of known technology, manual intervention is big and testing process is inconvenient.
The purpose of this utility model is a kind of dark adaptation tester of design, improves measuring accuracy, reduces manual intervention and makes simple testing process.
Tester of the present utility model adopts long box closed structure, to produce a kind of simulation comparatively true to nature natural environment jumpy that throws light on.The structure of this tester such as Fig. 1, Fig. 2.Be furnished with on the instrument front panel among the figure: 1, on and off switch; 2, observation port; 3, sighting target knob; 4, display panel; 6, the time is regulated; 14, start button.Be furnished with 7, keyboard on the rear board; 8, looked button; 10, window; 9, ring-like daylight lamp; 11, clamping plate; 12, electric ballast.Have in the cabinet: 5,21 median septums; 13,25, optical channel; 28, daylight lamp; 15, dark room lamp; 16, Magnet; 17, sighting target dish; 18, locking bit device; 19, output board; 20 baffle plates; 22, sighting target hole; 23,24,27, illuminator; 26, tongue tube, panel B.This utility model tester control centre is a microcomputer, and by panel transmission instruction, Fig. 3 is its structured flowchart.Among Fig. 3, A, microcomputer; B, panel; C, light controlling device; D, sighting target are selected and recognition device; E, sighting target test and answering device; F, optical surveillance device; G, test result display part; H, power supply.
Microcomputer A specifically of the present utility model can select various 8 single board computers for use.Be assembled with various electronic components on the panel B, to finish various functions, its schematic diagram as shown in Figure 4.In Fig. 4, A is single board computer, R1～15th, and resistance, K1 are start button 14, K2 is tested button 8, the tested index switch of K2 ', K3 is a print switch, K4 is a time by-pass cock 6, F1～4 are not gate, BG1～2 are audion, and T1, T2 are electromagnetic relay, and E is a positive source, D is a light emitting diode, and L is a daylight lamp.
The light controlling device C of tester comprises light source and high light stimulation time adjusting two parts.Light source comprises strong stimulation light and two kinds of light sources of low-light again, and wherein intense light source is made up of annular daylight lamp (9,28 4) totally, and adopts the electric ballast of instantaneous starting to trigger, and to guarantee that daylight lamp in time starts, high light illumination should reach 30,000 luxs.The low-light in darkroom is sent by dark room lamp 15, and effect is preferably a kind of opalesce, and its illumination is about 0.5 lux.The time length that high light stimulates during test is regulated 6 by the time on the tester panel and is controlled, and the time of being regulated shows in the time display of panel.
Sighting target is selected and recognition device D is made up of sighting target knob 3, locking bit device 18, sighting target dish 17, sighting target hole 22, Magnet 16, tongue tube 26.Be carved with several signs (numeral or symbol) on the card of sighting target dish 17, the locking bit device is determined the angle of sighting target dish 17 rotations.The whenever moving certain angles of rotation sighting target knob 3 can be seen a kind of different sign on the sighting target dish by sighting target hole 22.In each test, be apparent in the sign content in sighting target hole 22 by Magnet 16 and tongue tube 26(or photoelectric sensor) discern automatically and import among the control microcomputer A.
Sighting target test and answering device E are made up of sighting target hole 22, window 10, baffle plate 20, tested button 8, display 4, answer keyboard more than 7 parts.Sighting target hole 22 and window 10 are on same axis, and detected personnel observe from window 10, can see sign on the sighting target dish 17 by sighting target hole 22.Sighting target hole baffle plate 20 can rise and fall, open and close sighting target hole 22.The action of baffle plate 20 is to handle tested button 8 by micro-processor controlled by detected personnel.After the daylight lamp light application time reached predetermined value, light extinguished, and sighting target hole baffle plate 20 rises automatically, opens sighting target hole 22, and tested personnel can be at the sign of seeing under the light of darkroom on the sighting target dish.After tested personnel think to see sign clearly, unclamp the tested button of pressing 8, baffle plate 20 falls automatically, covers sighting target hole 22.Detected personnel extinguish from high light, and sighting target hole 22 is opened to the time that the sign of seeing clearly on the sighting target dish 17 unclamps tested button 8, i.e. the dark adaptation time, provided automatically and be passed in the microcomputer by time display 4.Answering device is put by answering keyboard 7 and is realized.After detected personnel observe sign on the sighting target dish, on keyboard 7, select the sign of same-sign to be input to microcomputer, if be all correct answer mutually with the sign of demonstration on the sighting target dish, otherwise erroneous answers, its result is by display screen or printout.The baffle plate 20 in sighting target hole 22 rises and falls automatically and adopts DC electromagnet to control its structure such as Fig. 5 in test process.Among Fig. 5,20 baffle plates; 22 sighting target holes; 29 flapper arms; 30 supporting locating shafts; 31 pitman shafts; 32, connecting rod; 33 postive stop baffles; 34 return springs; 35 electromagnetic valve cores; 36 electromagnetic valve bodies; 37 solenoid valve seats.When tested personnel survey button 8 by looking, the electromagnetic valve action is inhaled electromagnetic valve core 35 down, through connecting rod 32 power is passed to flapper arm 29, makes it operation.Because supporting locating shaft 30 upwards rises baffle plate 20 as fulcrum, beats a mouthful sighting target hole 22.After tested personnel decontrol tested button 8, lean on the elastic force of return spring 34 that connecting rod is resetted, baffle plate 20 falls, and closes sighting target hole 22.
Optical monitor F is independent parts in tester, and it is made up of optical channel 25, observation port 2 and 23,24,27 3 illuminators being placed in the optical channel.Whether main examiner person can watch high light to the eyes to tested personnel by observation port 2 in test process, guarantee to press the test request execution.Last test display part G as a result is that a display screen and printer can output test result.
Fig. 1 is an example of the present utility model.
This utility model has been realized the automatic processing of test process and test result owing to adopt microcomputer as control centre, has reduced personnel's intervention in the test process, has improved the precision of test, has simplified operating process.This tester is furnished with optical monitor simultaneously, and energy control detection condition is made right judgement.In addition, this tester has long airtight casing, and the mimic testing conditions of institute is close with natural environment, guarantees to detect quality.
Claims (4)
1, a kind of by micro-processor controlled dark adaptation tester, it is characterized in that:
(1) this tester is made up of panel B, light controlling device C, sighting target selection and recognition device D, sighting target test and answering device E, optical monitor F and test result display part;
(2) front panel of this cabinet is equipped with observation port 2, sighting target knob 3, and display screen 4 and time regulate 6;
(3) rear board of this cabinet is equipped with and answers keyboard 7, is looked button 8, window 10;
(4) panel B, daylight lamp 9,28, dark room lamp 15, optical channel 25 are installed in this cabinet.
2, by the described tester of claim 1, it is characterized in that light controlling device C comprises light source and high light stimulation time selection two parts, as the high light light source is 4 annular daylight lamps 9,28, is the dark room lamp 15 of electric filament lamp system as low light level light source, and it is time by-pass cock 6 that stimulation time is selected.
3,, it is characterized in that optical surveillance device is by optical channel 25 observation port 2 be placed on that 23,24,27 3 illuminators in the optical channel form by the described tester of claim 1.
4,, it is characterized in that the automatic on/off mechanism of the baffle plate 20 in sighting target hole 22 among the sighting target selecting arrangement D is controlled by DC electromagnet according to the described tester of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209656 CN2059574U (en) | 1989-10-28 | 1989-10-28 | Measuring instrument of dark adaption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209656 CN2059574U (en) | 1989-10-28 | 1989-10-28 | Measuring instrument of dark adaption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2059574U true CN2059574U (en) | 1990-07-25 |
Family
ID=4866173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89209656 Withdrawn CN2059574U (en) | 1989-10-28 | 1989-10-28 | Measuring instrument of dark adaption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2059574U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350003A (en) * | 2018-12-12 | 2019-02-19 | 长春奥普光电技术股份有限公司 | A kind of dark adaptation detection device |
| CN109984719A (en) * | 2019-03-28 | 2019-07-09 | 深圳职业技术学院 | A kind of visual color access function detection method and system |
| CN110063709A (en) * | 2018-01-24 | 2019-07-30 | 哈尔滨工业大学深圳研究生院 | The automatic presentation device of visual stimuli and visual experiment system and visual experiment method |
| CN111820858A (en) * | 2019-04-17 | 2020-10-27 | 昆明索弗拓科技有限公司 | Dark vision detection method, device, computing equipment and medium |
-
1989
- 1989-10-28 CN CN 89209656 patent/CN2059574U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063709A (en) * | 2018-01-24 | 2019-07-30 | 哈尔滨工业大学深圳研究生院 | The automatic presentation device of visual stimuli and visual experiment system and visual experiment method |
| CN110063709B (en) * | 2018-01-24 | 2021-10-08 | 哈尔滨工业大学（深圳） | Automatic visual stimulus presentation device, visual experiment system and visual experiment method |
| CN109350003A (en) * | 2018-12-12 | 2019-02-19 | 长春奥普光电技术股份有限公司 | A kind of dark adaptation detection device |
| CN109984719A (en) * | 2019-03-28 | 2019-07-09 | 深圳职业技术学院 | A kind of visual color access function detection method and system |
| CN111820858A (en) * | 2019-04-17 | 2020-10-27 | 昆明索弗拓科技有限公司 | Dark vision detection method, device, computing equipment and medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |