CN106983489A - A kind of eyesight detects lamp box - Google Patents
A kind of eyesight detects lamp box Download PDFInfo
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- CN106983489A CN106983489A CN201710387404.4A CN201710387404A CN106983489A CN 106983489 A CN106983489 A CN 106983489A CN 201710387404 A CN201710387404 A CN 201710387404A CN 106983489 A CN106983489 A CN 106983489A
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- height
- visual chart
- box
- eyesight
- lamp box
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0075—Apparatus for testing the eyes; Instruments for examining the eyes provided with adjusting devices, e.g. operated by control lever
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Length Measuring Devices By Optical Means (AREA)
Abstract
Lamp box is detected the invention discloses a kind of eyesight, including mounting bracket, the visual chart box being arranged in mounting bracket that can be slid up and down and the detection means being arranged on outside ceiling, detection means is in communication with each other with visual chart box and is connected, and by depending on table electricity box adjust to on the position of the height double altitudes of eyesight tester, detection means includes installing the housing on outside ceiling and the laser range finder installed in housing bottom surface, laser range finder is used for the height for detecting people, and export height values, visual chart box can be slided up and down and is connected in mounting bracket, the visual chart box is provided with the lowering or hoisting gear being in communication with each other with laser range finder, lowering or hoisting gear is used for the height values for receiving laser range finder output, and adjust the height regarding visual chart box according to height values, this Vission detector can adjust the height of visual chart box according to the height of eyesight tester, it is more accurate come the testing result for the eyesight tester for causing different heights.
Description
Technical field
The present invention relates to Vission detector field, more particularly to a kind of eyesight detection lamp box.
Background technology
During existing eyesight detection, the method for comparing popularization is that a c chart, detected person are fixed on metope
Stand in 5 meters from visual chart remote places, recognize the direction of E words on visual chart to examine regarding for detected person by detected person
Power, but it is existing there is Vission detector to be generally secured on metope, and then cause different elevated detected persons may be
It can look up or overlook during identification eyesight sheet icon, its testing result accuracy is not high, and existing Vission detector is in addition
Allow the brightness of visual chart is more uniform fluorescent lamp can be typically set at visual chart rear, be needed during each eyesight tester detection
Optist opens light source and guides eyesight tester station in fixed position, and the workload of optist is larger, and operation inconvenience, and
There is a situation where that optist forgets that closing power supply causes energy waste.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of accuracy it is high can automatic controlled height
Eyesight detects lamp box, can carry out height adjustment to visual chart box according to the height height of detected person.
To achieve the above object, the invention provides following technical scheme：A kind of eyesight detects lamp box, including installs branch
Frame, the visual chart box being arranged in mounting bracket that can be slid up and down and the detection means being arranged on outside ceiling, institute
State detection means and be in communication with each other with visual chart box and is connected, for the height for the tester that gives a test of one's eyesight, and will be adjusted depending on table electricity box to
With on the position of the height double altitudes of eyesight tester, the detection means includes installing housing and peace on outside ceiling
Mounted in the laser range finder of housing bottom surface, the laser range finder is used for the height for detecting people, and exports height values, described to regard
Power electricity box can be slided up and down and are connected in mounting bracket, and the visual chart box is provided with the lifting being in communication with each other with laser range finder and filled
Put, the lowering or hoisting gear is used for the height values for receiving laser range finder output, and regards visual chart box according to height values adjustment
Height.
Its advantage is：This Vission detector detects the detection means and visual chart lowering or hoisting gear of height by setting
Linkage is in communication with each other, realizes that eyesight detection lamp box can be adjusted height according to the height of tester so that visual chart box begins
Looking squarely on height of sighting line for tester is maintained at eventually so that the testing result of the eyesight tester of different heights is more accurate.
As a further improvement on the present invention, the mounting bracket is fixedly mounted on metope, and the mounting bracket is set
There is guide rail, the guide rail rear end face is provided with rack, the visual chart box is installed with the sliding sleeve with rectangular aperture, the sliding sleeve
Guide rail front end face is socketed, the lowering or hoisting gear includes servomotor, motor servo driver and comparator, the visual chart box
Downside, which is provided with, to be used to give a test of one's eyesight electricity box height and exports the second rangefinder of height number, and the comparator has first defeated
Enter end, the second input and output end, the laser range finder is coupled to first input end, second rangefinder is coupled to the
Two inputs, the output end is coupled with motor servo driver, and the servomotor is fixedly mounted on sliding sleeve, servo electricity
The take-off lever front end of machine is connected with gear, and the sliding sleeve both sides extend back and have connecting rod, and the connecting rod end is provided with circular hole, should
Circular hole, which is rotated, is socketed in gear both sides on extension bar, the wheel and rack engagement, when height values and height number not phase
Deng when, output end outputs signals to motor servo driver, the high number of degrees of motor servo driver driving servomotor rotation adjustment
Value.
Its advantage is：The height values and the second rangefinder detected by comparator to laser range finder are detected
Height number be compared, then servomotor is driven by comparator and motor servo driver, passes through servomotor connect band
Dynamic visual chart box is slided up and down along guide rail, realizes that visual chart box can accurately be moved to the position with tester's equal height
Put, the shift action of visual chart box can realize automation, servomotor has that fast response time, control accuracy be high, operation can
Lean on, small volume, small loss and other features, visual chart being capable of fast lifting and steady.
As a further improvement on the present invention, the housing lower surface is provided with human body infrared induction module, and the human body is red
Outer induction module is used to sense whether detected person enters induction region, and the housing lower surface is provided with projection lamp, described to regard
LED is installed, the visual chart box lower surface is provided with the second rangefinder, and second rangefinder is used to survey inside power electricity box
Measure the distance of visual chart box and room bottom surface, the laser range finder, human body infrared induction module, lowering or hoisting gear, LED, the
Two rangefinders and projection lamp are mutually coupled；When human body infrared induction module senses tester, decision circuitry controls Laser Measuring
Distance meter, the second rangefinder, projection lamp and LED start.
Its advantage is：Judge whether eyesight tester reaches test position by infrared induction module, in eyesight inspection
Laser range finder, the second rangefinder, projection lamp and LED are opened when survey person is positioned at test position, while being thrown by setting
Shadow lamp can indicate that people stand on accurate setting position so that laser range finder can effectively give a test of one's eyesight tester
Height, Vission detector intelligence degree is high on the whole, reduces the work of optometry person, improves the accurate of testing result
Degree.
As a further improvement on the present invention, the visual chart box includes lamp box and visual chart, and the lamp box is consolidated with sliding block
Fixed connection, the lamp box is cylindrical, and the side of the lamp box dorsad metope is provided with form, and the lamp box inner rotation is connected with transparent
Roller, visual chart bonding is in the outer surface of roller, and lamp box both sides shaft core position is provided with mounting groove, the mounting groove
Installation axle is inside fixedly connected with, the roller is rotated and is socketed in installation axle, and the side of the lamp box side is provided with deep-slotted chip breaker,
The roller side is provided with handle in correspondence arc groove location, and the handle stretches out deep-slotted chip breaker, and the deep-slotted chip breaker is rolled provided with instruction
The graduation mark of cylinder rotation distance, the LED is installed on the mounting shaft.
Its advantage is：By the visual chart box of roller type E word icon of the visual chart per a line is turned to
With eyesight tester's eyesight horizontal level, and its rotational structure is rationally easy to operate.
As a further improvement on the present invention, second rangefinder is laser range sensor or infrared distance sensor
Or ultrasonic distance-measuring sensor.
Its advantage is：The ray of second rangefinder will not touch human body so that the second rangefinder can be according to not
Same situation, its species selectivity is high.
As a further improvement on the present invention, the housing is provided with for installing fixed fixed installation part, and this is fixed
Installed part includes top plate, left plate and right plate, and the left plate and right plate lower end are extended with supporting plate, the top plate to inner side
Provided with the first mounting hole, the left plate is provided with the second mounting hole, and the right plate is provided with the 3rd mounting hole, and described first installs
Hole is provided with screw so that fixed installation part is arranged on wall, and the housing two sides are provided with connecting hole, the connecting hole and the
Two mounting holes and the 3rd mounting hole are fixedly connected by screw flight.
Its advantage is：Detection means is arranged on room top plate by the piece installing of solid Dingan County, is fixed and connected by screw rod
Connect, be easy to remove and repair, and can carry out horizontal adjustment to detection means when mounted.
As a further improvement on the present invention, the hypovalve that the housing is provided with is provided with air level, and the air level is
The circle bubble of iridescent.
Its advantage is：Air level can accurately instruct detection means to carry out horizontal adjustment, so that detection means
Laser range finder can effectively carry out eyesight detection to eyesight eyesight tester, and make it that the projected position of projection lamp is accurate not
Shift.
As a further improvement on the present invention, a diameter of 20-50cm of the projection aperture of the projection lamp.
Its advantage is：20-50cm diameter aperture can indicate that eyesight tester stands on accurate position, its
Position is located in the detection range of laser range finder, can effectively carry out height detection, it is projected and so that eyesight tester
Stand in the front of visual chart box, do not shift.
As a further improvement on the present invention, the projection lamp is in series with time switch, the setting time of the time switch
For 30-60s.
Its advantage is：Projection lamp is guiding eyesight tester to stand to after accurately being picked up position, passes through timing of connecting
Switch can be closed after 30-60s so that the light of projection lamp does not interfere with sight when detection.
Brief description of the drawings
Fig. 1 is use state figure of the present invention；
Fig. 2 is the structural representation of mounting bracket, visual chart box and the lowering or hoisting gear of the present invention；
Fig. 3 is the structural representation of visual chart box of the present invention；
Fig. 4 is the sectional view of visual chart box of the present invention；
Fig. 5 is the structural representation of detection means of the present invention；
Fig. 6 is the sectional view of detection means of the present invention；
Fig. 7 is the structural representation of fixed installation part；
Sectional view when Fig. 8 is guide rail and sliding sleeve routing motion；
Fig. 9 is circuit diagram of the invention.
1st, mounting bracket；2nd, visual chart box；3rd, detection means；4th, lowering or hoisting gear；5th, housing；6th, laser range finder；7th, people
Body infrared induction module；8th, projection lamp；9th, LED；10th, the second rangefinder；11st, comparator；12nd, Postponement module；13rd, guide rail；
14th, connecting hole；15th, rack；16th, sliding sleeve；17th, right plate；18th, servomotor；19th, gear；20th, connecting rod；21st, circular hole；22、
Lamp box；23rd, form；24th, connecting shaft；25th, mounting groove；26th, left plate；27th, roller；28th, deep-slotted chip breaker；29th, handle；30th, scale
Line；31st, fixed installation part；32nd, the first mounting hole, the 33, second mounting hole；34th, the 3rd mounting hole；35th, connecting hole；36th, level
Bubble；37th, time switch；38th, supporting plate；39th, top plate；40th, motor servo driver.
Embodiment
The present invention is described in further detail below in conjunction with the embodiment given by accompanying drawing.
Shown in reference picture 1-9, a kind of eyesight detection lamp box disclosed in the present embodiment, including mounting bracket 1, can slide up and down
The visual chart box 2 being arranged in mounting bracket 1 and the detection means 3 being arranged on outside ceiling, mounting bracket 1 fixes
On the vertical metope in room, detection means 3 is arranged on room top plate and remote, the inspection for 5m of the vertical range of visual chart box 2
Device 3 is surveyed to be in communication with each other and is connected with visual chart box 2, for the height for the tester that gives a test of one's eyesight, and will be adjusted depending on table electricity box to
On the position of the height double altitudes of eyesight tester, the detection means 3 includes installing housing 5 and peace on outside ceiling
Laser range finder 6 mounted in the bottom surface of housing 5, the model of its laser range finder 6 can select LTS-0, and the laser range finder 6 is used for
The height of people is detected, and exports height values, laser range finder 6 is arrived by sending vertical ray downwards by calculating laser
Detected height is calculated up to the detected person crown reflected time received by laser range finder 6, the visual chart box 2 can
Slide up and down and be connected in mounting bracket 1, the visual chart box 2 is provided with the lowering or hoisting gear 4 being in communication with each other with laser range finder 6,
The lowering or hoisting gear 4 can realize that the lowering or hoisting gear 4 is used to receive laser by the form of screw rod lifting platform or the slide rail of gear 19
The height values that rangefinder 6 is exported, and according to the height of height values adjustment visual chart box 2.
Eyesight disclosed in the present embodiment detects lamp box, and people tester forward direction faces visual chart box 2 when in use, stands
5 meters of remote positions of correspondence visual chart box, laser range finder 6 is arranged on the detecting position upper end correctly stood required for correspondence tester
Ceiling on, the height values of tester are measured by ceiling mounted laser range finder 6, with laser range finder 6
The height values that the lowering or hoisting gear 4 being in communication with each other is exported according to laser range finder 6 are adjusted, and its lowering or hoisting gear 4 can be
Screw rod lifting platform can also be gear device, and lowering or hoisting gear 4 causes visual chart box 2 to be moved up and down in mounting bracket 1, swashs
Optar 6 is communicated with the motor of lowering or hoisting gear 4, and driving visual chart box 2 is adjusted height according to the height of tester,
So that visual chart box 2 remains at the looking squarely on height of sighting line of tester so that the eyesight tester of different heights is in detection
Eyesight can be kept to look squarely during eyesight so that testing result is more accurate.
As a kind of improved embodiment, the mounting bracket 1 is fixedly mounted on metope, the mounting bracket
1 is provided with guide rail 13, and the rear end face of guide rail 13 is provided with rack 15, and the visual chart box 2 is installed with rectangular aperture
Sliding sleeve 16, the sliding sleeve 16 socket the front end face of guide rail 13, the lowering or hoisting gear 4 include servomotor 18, motor servo driver
40 and comparator 11, the servomotor 18 can select model SGMRV-44ANA-YR2 servomotor 18, the servomotor
Driver 40 controls the rotation of servomotor 18 using digital signal processor (DSP) as prior art as control core
Direction and velocity of rotation, its comparator 11 can be single-chip microcomputer, and the single-chip microcomputer can use the serial port programming list of (AT89C51) model
Piece machine, the downside of the visual chart box 2, which is provided with to be used to giving a test of one's eyesight, the height of electricity box 2 and exports the second rangefinder of height number
10, the comparator 11 has first input end, the second input and output end, and it is defeated that the laser range finder 6 is coupled to first
Enter end, second rangefinder 10 is coupled to the second input, and the output end is coupled with motor servo driver 40, described to watch
Take motor 18 to be fixedly mounted on sliding sleeve 16, the take-off lever front end of the servomotor 18 is connected with gear 19,16 liang of the sliding sleeve
Connecting rod 20 is extended with after lateral, the end of connecting rod 20 is provided with circular hole 21, the circular hole 21 rotates the tooth being socketed on extension bar
19 both sides are taken turns, the gear 19 is engaged with rack 15, when height values and height number are unequal, output end is output signals to
Motor servo driver 40, the driving rotation adjustment height number of servomotor 18 of motor servo driver 40, single-chip microcomputer is to receiving
The data of 6 and second rangefinder of laser range finder 10 converted, its reduction formula be laser range finder 6 subtract to the height on ground
Go laser range finder 6 detect with the distance on the detected person crown subtract again the average people crowns of 10cm to the distance of eyes be body
High numerical value, the distance on the second rangefinder 10 and ground plus visual chart box 2 eyesight sheet icon and the bottom surface of visual chart box 2 away from
From for height number, single-chip microcomputer judges the size of height values and height number, the servo when height values are more than height number
Control servomotor 18 take-off lever of motor driver 40, which is rotated forward, drives visual chart box 2 to move up until height values are equal to height
Servomotor 18 is out of service during numerical value, the control of motor servo driver 40 servomotor when height values are less than height number
The reversion of 18 take-off levers drives visual chart box 2 to be moved downwardly until that lowering or hoisting gear 4 is out of service when height values are equal to height number,
The measured value of single-chip microcomputer real-time reception laser range finder 6 and the second rangefinder 10 carries out subtraction, in obtained computing knot
When fruit is 0, the control servomotor 18 of motor servo driver 40 is out of service, when obtained operation result is positive number, servo
The control servomotor 18 of motor driver 40, which is rotated forward, causes visual chart box 2 to move upwards, when obtained operation result is negative,
The control servomotor 18 of motor servo driver 40, which is inverted, causes visual chart box 2 to move downward.
The high number of degrees that the height values and the second rangefinder 10 detected by comparator 11 to laser range finder 6 are detected
Value is compared, then drives servomotor 18 by comparator 11 and motor servo driver 40, passes through the connect band of servomotor 18
Dynamic visual chart box 2 is slided up and down along guide rail 13, realizes that visual chart box 2 can be accurately moved to and tester's equal height
Position, the shift action of visual chart box 2 can realize automation, and servomotor 18 has fast response time, control accuracy height, fortune
Row is reliable, small volume, small loss and other features, and visual chart being capable of fast lifting and steady.
As a kind of improved embodiment, the lower surface of housing 5 is provided with human body infrared induction module 7, should
Human body infrared induction module 7 is used to sense whether detected person enters induction region, and the lower surface of housing 5 is provided with projection lamp
8, LED 9 is installed inside the visual chart box 2, the lower surface of visual chart box 2 is provided with the second rangefinder 10, and this second
The model of rangefinder 10 can also select LTS-0, second rangefinder 10 be used to measuring visual chart box 2 and room bottom surface away from
From the laser range finder 6, human body infrared induction module 7, lowering or hoisting gear 4, LED 9, the second rangefinder 10 and projection lamp 8
It is mutually coupled；Decision circuitry control laser range finder 6, the second rangefinder when human body infrared induction module 7 senses tester
10th, projection lamp 8 and LED 9 start, the decision circuitry when tester is walked out outside the induction zone of human body infrared induction module 7
Control laser range finder 6, the second rangefinder 10, projection lamp 8 and LED 9 are closed, human body infrared induction module 7 and its judgement
The circuit theory of circuit is：Using pyroelectric infrared sensor (LN074B) as receive human body infrared radiation element, when
Pyroelectric infrared sensor is received after human infrared radiation signal, by pyroelectric infrared sensor internal conversion into a frequency
Low frequency signal faint about 0.3~3Hz, the electricity that input operational amplifier is constituted after low frequency signal amplifies through NPN transistor
Comparator 11 is pressed, when there is human body to be in the investigative range of pyroelectric infrared sensor, pyroelectric infrared sensor output is certain
Voltage, the voltage makes signal output voltage higher than ginseng through NPN transistor amplification and operational amplifier composition voltage comparator 11
Voltage is examined, at this moment operational amplifier output high level makes the conducting of N-channel FET, so that level output end output is high
Level, the startup of laser range finder 6, the second rangefinder 10, projection lamp 8 and LED 9 is controlled by high level.
Judge whether eyesight tester reaches test position by infrared induction module, tester is positioned at detection in eyesight
Laser range finder 6, the second rangefinder 10, projection lamp 8 and LED 9 are opened during position, while by setting projection lamp 8 can
Indicate that people stand on accurate setting position so that laser range finder 6 can effectively give a test of one's eyesight the height of tester,
The intelligence degree of Vission detector 3 is high on the whole, reduces the work of optometry person, improves the accuracy of testing result.
As a kind of improved embodiment, the visual chart box 2 includes lamp box 22 and visual chart, the lamp box 22
It is fixedly connected with a slide block, the lamp box 22 is cylindrical, the side of the lamp box 22 dorsad metope is provided with form 23, the lamp box 22
Portion is rotatably connected to transparent roller 27, and the visual chart bonding is in the outer surface of roller 27, the both sides axle center of lamp box 22 position
Install and be equipped with mounting groove 25, installation axle 24 is fixedly connected with the mounting groove 25, the roller is rotated and is socketed in installation axle, institute
The side for stating the side of lamp box 22 is provided with deep-slotted chip breaker 28, and the side of roller 27 is provided with handle in correspondence deep-slotted chip breaker 28 position
29, the handle 29 stretches out deep-slotted chip breaker 28, and the deep-slotted chip breaker 28 leads to provided with the graduation mark 30 for indicating the rotation distance of roller 27, optometry person
Cross handle 29 and rotate roller 27, handle 29 institute in a scale, form 23 is rotated in the deep-slotted chip breaker 28 it is observed that international mark
The icon of quasi- visual chart is arranged in connecting shaft 24 in conversion a line, the LED 9, is caused by the visual chart box 2 of roller type
E word icon of the visual chart per a line can turn to eyesight tester's eyesight horizontal level, and its rotational structure is rationally easy
Operation.
As a kind of improved embodiment, second rangefinder 10 is laser range sensor or infrared distance measurement
Sensor or ultrasonic distance-measuring sensor, the ray of the second rangefinder 10 will not touch human body so that the second rangefinder 10 can
So that according to different situations, its species selectivity is high.
As a kind of improved embodiment, the housing 5 is provided with for installing fixed fixed installation part 31,
The fixed installation part 31 includes top plate 39, left plate 26 and right plate 17, and the left plate 26 and the lower end of right plate 17 are prolonged to inner side
Stretching has supporting plate 38, and the top plate 39 is provided with the first mounting hole 32, and the left plate 26 is provided with the second mounting hole 33, the right side
Plate 17 is provided with the 3rd mounting hole 34, and first mounting hole 32 is provided with screw so that fixed installation part 31 is arranged on the top in room
On plate, the two sides of housing 5 are provided with connecting hole 14, when housing 5 is placed in supporting plate 38, and connecting hole 14 and second is installed
The mounting hole 34 of hole 33 and the 3rd aligns, and the mounting hole 33 of connecting hole 14 and second and the 3rd mounting hole 34 pass through screw flight
It is fixedly connected, when mounted can be by adjusting left and right screw rod to the horizontal adjustment of detection means 3, detection means 3 is pacified by fixed
Piece installing 31 is arranged on room top plate, is fixedly connected, is easy to remove and repair by screw rod, and detection can be filled when mounted
Put 3 carry out horizontal adjustments.
As a kind of improved embodiment, the hypovalve that the housing 5 is provided with is provided with air level, the level
Steep the circle bubble for iridescent.
Air level can accurately instruct detection means 3 to carry out horizontal adjustment, keep the bubble in air level to be located at level
The center of bubble so that the laser range finder 6 of detection means 3 effectively can carry out eyesight inspection to eyesight eyesight tester
Survey, and the projected position of projection lamp 8 is not shifted accurately.
It is used as a kind of improved embodiment, a diameter of 20-50cm of the projection aperture of the projection lamp 8.
20-50cm diameter aperture can indicate that eyesight tester stands on accurate position, and its position is located at laser
In the detection range of rangefinder 6, can effectively carry out height detection, its project and cause eyesight tester stand in visual chart
The front of case 2, does not shift.
As a kind of improved embodiment, the projection lamp 8 is in series with time switch, the setting of the time switch
Time is 30-60s.
Projection lamp 8 is guiding eyesight tester to stand to after accurately being picked up position, and by connecting, time switch can be in 30-
Closed after 60s so that the light of projection lamp does not interfere with sight when detection.
When using：When eyesight tester is reached in the detection range of human body infrared detection module, and in detection range
The regular hour is stopped, laser range finder 6, the second rangefinder 10, projection lamp 8 and LED 9 start, projection lamp 8 is filled in detection
Put 3 downward vertically corresponding position cast aperture, eyesight tester is regarded by aperture voluntarily adjustment position, 6 pairs of laser range finder
Power tester carries out height measurement, and the second rangefinder 10 is measured to the height of visual chart box 2, both detections of 11 pairs of comparator
Numerical value is compared and then controls the lifting of lowering or hoisting gear 4.
In summary, the present invention realizes that Vission detector can carry out rising-falling tone as the height of eyesight tester changes
Whole, eyesight tester, which remains, to look squarely so that testing result is more accurate, and Vission detector passes through during detection
Infrared induction, which is automatically turned on, closes, and overall automatic intelligent degree is high, reduces the work of optist, improves operating efficiency.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of eyesight detects lamp box, it is characterised in that：Including mounting bracket (1), can up and down sliding be arranged on mounting bracket
(1) visual chart box (2) on and the detection means (3) being arranged on outside ceiling, the detection means (3) and visual chart
Case (2) is in communication with each other connection, and the detection means (3) is used for the height of tester of giving a test of one's eyesight, and will be adjusted depending on table electricity box (2) to
With on the position of the height double altitudes of eyesight tester, the detection means (3) includes installing the housing on outside ceiling
(5) and the laser range finder (6) installed in housing (5) bottom surface, the laser range finder (6) is used for the height for detecting people, and defeated
Go out height values, the visual chart box (2), which can slide up and down, to be connected in mounting bracket (1), the visual chart box (2) be provided with
The lowering or hoisting gear (4) that laser range finder (6) is in communication with each other, the lowering or hoisting gear (4) is used to receive laser range finder (6) output
Height values, and adjust the height regarding visual chart box (2) according to height values.
2. a kind of eyesight detection lamp box according to claim 1, it is characterised in that：The mounting bracket (1) is fixedly mounted
On metope, the mounting bracket (1) is provided with guide rail (13), and guide rail (13) rear end face is provided with rack (15), described to regard
Power electricity box (2) are installed with the sliding sleeve (16) with rectangular aperture, the sliding sleeve (16) socket guide rail (13) front end face, the liter
Falling unit (4) includes servomotor (18), motor servo driver and comparator (11), the downside of the visual chart box (2)
Provided with for the electricity box that give a test of one's eyesight (2) height and the second rangefinder (10) of height number is exported, the comparator (11) has
First input end, the second input and output end, the laser range finder (6) are coupled to first input end, second ranging
Instrument (10) is coupled to the second input, and the output end is coupled with motor servo driver (40), and the servomotor (18) is solid
Dingan County is on sliding sleeve (16), and the take-off lever front end of the servomotor (18) is connected with gear (19), sliding sleeve (16) both sides
Extending back has connecting rod (20), and connecting rod (20) end is provided with circular hole (21), and the circular hole (21) rotates and is socketed in extension bar
On gear (19) both sides, the gear (19) engages with rack (15), when height values and height number are unequal, output
End outputs signals to motor servo driver (40), motor servo driver (40) driving servomotor (17) rotation adjustment height
Numerical value.
3. a kind of eyesight detection lamp box according to claim 2, it is characterised in that：Housing (5) lower surface is provided with
Human body infrared induction module (7), the human body infrared induction module (7) is used to sense whether detected person enters induction region, institute
State housing (5) lower surface and be provided with projection lamp (8), the visual chart box (2) is internal to be provided with LED (9), the visual chart box
(2) lower surface is provided with the second rangefinder (10), and second rangefinder (10) is used to measure visual chart box (2) and room bottom surface
Distance, the laser range finder (6), human body infrared induction module (7), lowering or hoisting gear (4), LED (9), the second rangefinder
And projection lamp (8) is mutually coupled (10)；When human body infrared induction module (7) senses tester, decision circuitry controls laser
Rangefinder (6), the second rangefinder (10), projection lamp (8) and LED (9) start.
4. a kind of eyesight detection lamp box according to claim 3, it is characterised in that：The visual chart box (2) includes lamp box
(22) and visual chart, the lamp box (22) is fixedly connected with a slide block, and the lamp box (22) is cylindrical, the lamp box (22) dorsad metope
Side be provided with form (23), lamp box (22) inner rotation is connected with transparent roller (27), and the visual chart bonding exists
The outer surface of roller (27), lamp box (22) both sides shaft core position is provided with mounting groove (25), fixed in the mounting groove (25)
Installation axle (24) is connected with, the roller is rotated and is socketed in installation axle (24), and the side of lamp box (22) side is provided with
Deep-slotted chip breaker (28), the roller (27) is provided with handle (29) in correspondence deep-slotted chip breaker (28) position sideways, and the handle (29) stretches out
Deep-slotted chip breaker (28), the deep-slotted chip breaker (28) is provided with the graduation mark (30) for indicating roller (27) rotation distance, LED (9) peace
In installation axle (24).
5. a kind of eyesight detection lamp box according to claim 4, it is characterised in that：Second rangefinder (10) is laser
Distance measuring sensor or infrared distance sensor or ultrasonic distance-measuring sensor.
6. a kind of eyesight detection lamp box according to claim 5, it is characterised in that：The housing (5) is provided with for pacifying
Fixed fixed installation part (31) is filled, the fixed installation part (31) includes top plate (39), left plate (26) and right plate (17), should
Left plate (26) and right plate (17) lower end are extended with supporting plate (38) to inner side, and the top plate is provided with the first mounting hole (32),
The left plate (26) is provided with the second mounting hole (33), and the right plate (17) is provided with the 3rd mounting hole (34), first peace
Dress hole (32) is provided with screw so that fixed installation part (31) is arranged on wall, and housing (5) two sides are provided with connecting hole
(14), the connecting hole (14) is fixedly connected with the second mounting hole (33) and the 3rd mounting hole (34) by screw flight.
7. a kind of eyesight detection lamp box according to claim 6, it is characterised in that：The lower casing that the housing (5) is provided with
Face is provided with air level, and the air level is the circle bubble of iridescent.
8. a kind of eyesight detection lamp box according to claim 7, it is characterised in that：The projection aperture of the projection lamp (8)
A diameter of 20-50cm.
9. a kind of eyesight detection lamp box according to claim 8, it is characterised in that：, the projection lamp (8) be in series with timing
Switch, the setting time of the time switch is 30-60s.
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| CN201710387404.4A CN106983489B (en) | 2017-05-26 | 2017-05-26 | A kind of eyesight detection lamp box |
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| CN201710387404.4A CN106983489B (en) | 2017-05-26 | 2017-05-26 | A kind of eyesight detection lamp box |
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| CN106983489A true CN106983489A (en) | 2017-07-28 |
| CN106983489B CN106983489B (en) | 2019-03-19 |
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| CN108272630A (en) * | 2018-03-14 | 2018-07-13 | 刘增磊 | Moxaburner device |
| CN108634581A (en) * | 2018-05-14 | 2018-10-12 | 朱雨辰 | Multi-functional automatic dining table |
| CN109124561A (en) * | 2018-03-20 | 2019-01-04 | 许昌学院 | One kind is anti-to recite visual chart |
| CN109330555A (en) * | 2018-09-14 | 2019-02-15 | 侯尧珍 | A kind of intelligent eyesight detection based on cloud computing and training correction system |
| CN109907728A (en) * | 2019-04-11 | 2019-06-21 | 梁恩惠 | A kind of sight test means and method |
| CN109998470A (en) * | 2019-04-18 | 2019-07-12 | 深圳亿点五网络科技有限公司 | A kind of eyesight test method and device |
| CN111685722A (en) * | 2020-05-29 | 2020-09-22 | 义乌市光明工程近视防控研究所 | Wisdom campus is with intelligent visual detection system |
| CN111685721A (en) * | 2020-05-29 | 2020-09-22 | 义乌市光明工程近视防控研究所 | Eyesight screening equipment capable of automatically adjusting detection distance |
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