CN109632091A - Portable plane illumination photometer - Google Patents
Portable plane illumination photometer Download PDFInfo
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- CN109632091A CN109632091A CN201910091270.0A CN201910091270A CN109632091A CN 109632091 A CN109632091 A CN 109632091A CN 201910091270 A CN201910091270 A CN 201910091270A CN 109632091 A CN109632091 A CN 109632091A
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- 238000005286 illumination Methods 0.000 title claims abstract description 128
- 230000005389 magnetism Effects 0.000 claims abstract description 53
- 239000011159 matrix material Substances 0.000 claims abstract description 51
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 14
- 239000000872 buffer Substances 0.000 claims description 29
- 238000009413 insulation Methods 0.000 claims description 29
- 238000005259 measurement Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 238000005375 photometry Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000002688 persistence Effects 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000006870 function Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005483 Hooke's law Effects 0.000 description 1
- 101100015484 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GPA1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0403—Mechanical elements; Supports for optical elements; Scanning arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/0271—Housings; Attachments or accessories for photometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J2001/4247—Photometry, e.g. photographic exposure meter using electric radiation detectors for testing lamps or other light sources
Abstract
The present invention relates to a kind of Portable plane illumination photometers, place cosine corrector in the top of each round tube hole in the top of cap, constitute cosine corrector matrix, shading lattice matrix, illuminance transducer matrix, concave mirror surface matrix and three-color LED matrix are successively arranged immediately below round tube hole matrix, driving gear shaft is located at the middle position of each driven gear shaft, driving gear on driving gear shaft engages connection with the driven gear on the driven gear shaft of two sides, welds a rectangle permanent magnetism bar on driving gear；Cap inside top is equipped with upper core, and circuit board is equipped with lower core；The digital analog converter end of the anode connection CPU of three-color LED, cathode connect data selector MUX2；Illuminance transducer passes through data selector MUX1Connect the analog-digital converter ADC of CPU1, the analog-digital converter ADC of CPU2Temperature sensor is connected, three control signal outputs of CPU are separately connected upper core, lower core and liquid crystal display.
Description
Technical field
The present invention relates to a kind of indoor illumination intensity meters, in particular to a kind of to write operating area illumination for measuring children
Portable indoor part plan illumination photometer.
Background technique
China's children's learning tasks are heavier, are chronically in writing and reading process, and desktop or screen illumination are
It is no suitable, mostly by the subjective judgement of parent or teacher, lacks the real-time monitoring to brightness value, especially often there is student to be immersed in work
In industry, and oneself sitting posture deviation gradually dim to environment shuts out the light and does not know, also no supervision, and it is close that these situations become student
Depending on one of the reason that rate is high for many years.
Indoor writing and reading area are the work surfaces of a part rather than some point, the illumination meeting in work surface everywhere
It is variant, such as reading area lamp illuminance is dazzling, and it is dim to write region illumination, can deteriorated vision, therefore cannot act as industry
The illumination of the brightness value characterization entire surface of certain point in face, cannot act as the photograph of the average illumination value characterization entire surface in industry face
Degree.And current illumination photometer or it is only equipped with the illuminance transducer that can only measure certain point illumination, cause to measure entire work
The illumination in industry face needs repeatedly measurement, especially still owes simplicity, such as patent publication No. to the illumination photometry of large area
A kind of student of voice prompting disclosed in CN104406688B learns with illuminance test device etc. or only to show four illumination
The average illumination value of sensor test point, such as a kind of Four-sensor type illuminometer disclosed in patent publication No. CN102538959A
Deng the illumination in entire plane everywhere cannot be measured simultaneously, and shows light situation everywhere simultaneously.
In life, many adults and children do not have the knowledge of illuminance related fields still, grasp conventional shine
Degree meter is difficult with the brightness value of lx unit, and patent publication No. CN102818626B discloses a kind of several different colours thus
With the method for the illumination photometry value of the monochromatic LED qualitative representation certain point of brightness, but its indicate certain point illumination it is too dark, partially
Secretly ... ..., too bright, just with 5 different lamps and explanatory note must be cooperated, it is complex, and still can not measure and show simultaneously
Show light situation everywhere in work surface.
Therefore need one kind that can indicate in work surface in real time convenient for parent, teacher and children's portable use at present
The novel planar illumination photometer of illumination everywhere.
Summary of the invention
The present invention is to provide for a kind of Portable plane illumination photometer for the instruction of part plan illumination, to solve existing skill
Drawbacks described above present in art.
The technical scheme is that a kind of Portable plane illumination photometer, including illuminance transducer matrix, cosine corrector
The top of matrix, cap, circuit board, bottom plate and three-color LED matrix, the cap is equipped with round tube hole matrix, each round tube hole
Size shape is identical, and cosine corrector is placed on round tube hole top, and the center of adjacent two round tube holes is away from equal, composition cosine correction
Device matrix, be successively arranged immediately below round tube hole matrix with cap one and side be each perpendicular to shading lattice matrix at the top of cap,
Illuminance transducer matrix, the fixed concave mirror on circuit boards being bonded in the axis side convex wing of driving gear shaft and driven gear shaft
Face matrix and the three-color LED matrix in concave mirror surface；The side of round tube hole matrix is equipped with switch and liquid crystal display, with bottom plate
Bracket, CPU and its peripheral circuit, concave mirror surface, three-color LED are welded on fixed circuit board, the driving gear shaft is located at each
The middle position of driven gear shaft, driving gear shaft and each driven gear shaft are connect with respective bracket respectively, driving gear shaft
On driving gear engage connection with the driven gear on the driven gear shaft of two sides, also engagement connects between adjacent driven gear
It connects, each gear shaft axis is contour and is parallel to each other, and transmission ratio is 1:1 between each gear；One is welded on the driving gear
Root rectangle permanent magnetism bar, axis side convex wing plane and illuminance transducer plane thereon of the long side perpendicular to driving gear shaft；It is described
Cap inside top corresponds to and is equipped with upper core at rectangle permanent magnetism bar, corresponds on the circuit board and is equipped with lower iron at rectangle permanent magnetism bar
Core；When the illuminance transducer is in position in horizontal direction, each cosine corrector and round tube hole, shading lattice, photograph below
Degree sensor, concave mirror surface, three-color LED center line be overlapped；The digital analog converter of the anode connection CPU of the three-color LED
DAC1~DAC3Port, cathode connect data selector MUX2；The output end of the illuminance transducer passes through data selector MUX1
Connect the analog-digital converter ADC of CPU1Port, the analog-digital converter ADC of CPU2Port connects the output end of temperature sensor, CPU
Three control signal output O1~O3It is separately connected upper core, lower core and liquid crystal display.
Further, left baffle and right baffle, the liquid crystal display are respectively embedded into the empty slot of the left and right sides of the cap
The O of device reception CPU3The instruction at end controls signal, according to the layout of degree sensor matrices, shows in illuminance transducer matrix and respectively shines
Spend brightness value measured by sensor.
Further, the right baffle-plate lower end is equipped with left barb, and right shell body lower end is equipped with right barb, and respectively embedded in cap
In the slot of arranged on left and right sides, and left barb and right barb be respectively by cell wall elastic compression, so that the static friction of left and right baffle and slot
Power is self-possessed greater than baffle, and when right baffle-plate or right shell body are drawn out when shutting out the light out of slot, the right baffle-plate or right shell body are stopped
In any position without gliding because of self weight；When excessively pulling out left baffle and right baffle, left barb is in the left chamber of left side groove
Expansion, and right barb is unfolded in the right chamber of right side groove, and baffle is prevented to be drawn out outside slot, guarantees that barb collapses when baffle is pressurized,
It backs into slot.
Further, the luminous end of each three-color LED, positioned at the focus of concave mirror surface, so that the light that each three-color LED issues
It is reflected vertically upward by concave mirror surface, the shading lattice, round tube hole, cosine corrector across surface, projects and shine to outside cap, hidden
The equal blacking in the side of light lattice absorbs the stray light that lower section three-color LED issues, in case stray light is outside through adjacent cosine corrector
Leakage, and form interfering with each other for assorted light；The CPU passes through control address wire A1……AmSo that data selector MUX2
The cathode of each three-color LED is grounded by timesharing in turn, and by digital analog converter DAC1~DAC3The value of electrical signals combination at end makes each
Three-color LED issues the light color of its corresponding surface surveyed illumination of illuminance transducer.
Further, at the axis side convex wing of the driving gear shaft and driven gear shaft radial section be in rectangle, and axis remaining
The radial section at place is rounded, and every rooted tooth wheel shaft runs through the groove of a column shading lattice；Driving gear shaft and driving gear are one
Body, every driven gear shaft is integrated, the both ends difference of driving gear shaft and driven gear shaft with driven gear thereon
It is connected with the bracket through a bearing, and each gear shaft, bearing and bracket are made of good conductor metal, the illuminance transducer
Zero curve with where it axis side convex wing weld, bracket then on circuit board zero curve weld, the zero of the illuminance transducer
Line is connected by driving gear shaft or driven gear shaft and its bearing and bracket and circuit zero curve；The signal of the illuminance transducer
Line is hung down using thin spring silk made of good conductor metal from driving gear shaft or driven gear shaft, with the data on circuit board
Selector MUX1It is welded to connect.
Further, under initial measured state, the permanent magnetism bar magnetic pole S is upper, and for magnetic pole N under, the long side of permanent magnetism bar is vertical
It is padded on buffer insulation in being bonded on bottom plate, the side of long side, and pads to abut on buffer insulation and be fixed on the upper of cap inside top
Iron core lower end, bonds buffer insulation underlay on the other side of long side, and buffer insulation underlay against it is fixed on circuit boards under
Iron core upper end；As the O of CPU2End output low level, O1When the output high level of end, the lower core power-off, and upper core is powered, and makes
It obtains upper core and forms the pole S in electromagnet upper and that the pole N is under, the pole N of upper core and permanent magnetism bar magnetic pole S are attracting, and permanent magnetism bar is inhaled
It is securely fixed, be pressurized anticollision buffering and electric insulation effect are padded on the buffer insulation between upper core and permanent magnetism bar, are insulated simultaneously
It buffers underlay to be oppressed by permanent magnetism bar and lower core, plays anticollision buffer function, the axis side on driving gear shaft and driven gear shaft is convex
Wing plane is parallel to bottom plate, and when illumination photometer is lain in work surface, the illuminance transducer in the convex wing of each axis side is in same water
Plane, center are located on the center line of cosine corrector and three-color LED, constitute illumination photometry matrix, the illumination photometry square
Battle array receives the illumination that the external world penetrates cosine corrector from top to bottom and comes, to data selector MUX1Output illuminance electric signal, CPU
By controlling address wire A1……AmSo that data selector MUX1Each road illumination electric signal is inputted the analog-to-digital conversion of CPU by timesharing
Device ADC1, while analog-digital converter ADC2The real time temperature signal of temperature sensor output is received, the real time temperature signal is for CPU
Make temperature-compensating when calculating illumination；After CPU calculates each brightness value and corresponding tristimulus signal, into display state；When
The O of CPU2End output high level, O1When the output low level of end, upper core power-off, lower core be powered to be formed upper end be the pole N and
Lower end is the electromagnet of the pole S, so that the permanent magnetism bar lower end pole N is repelled each other with the pole lower core N, and the permanent magnetism bar upper end pole S and the pole lower core N
It is attracting, cause permanent magnetism bar to drive the illuminance transducer rotation in driving gear, driving gear shaft and its axis side convex wing, passes through simultaneously
Gear engaged transmission drives the illuminance transducer rotation in driven gear, driven gear shaft and its axis side convex wing；When being rotated up to
At 90 °, the pole S of permanent magnetism bar hits the pole lower core N, and the pole N of permanent magnetism bar hits upper core bottom, and it is slow that anticollision is paved on buffer insulation
Punching acts on, and anticollision buffering and electric insulation effect are paved under buffer insulation, and permanent magnetism bar is sucked fixation, makes permanent magnetism bar by lower core
Long side goes to horizontal position, and it is extremely vertical with bottom plate to rotate each axis side convex wing and illuminance transducer also all, and the CPU passes through control
Output end O processed3Liquid crystal display is set to show that illumination value matrix, CPU control address wire A1……AmWith digital analog converter DAC1~
DAC3Output, timesharing circulation connect each three-color LED in three-color LED matrix, and it is corresponding with brightness value to be allowed to the light color issued, use
The persistence of vision at family makes it to observe the assorted light distribution that three-color LED matrix is issued simultaneously, passes to intuitively understand illumination
The distribution of planar illumination measured by sensor；Then CPU issues command signal again powers off lower core, and upper core is powered, and returns to
Measuring state, i.e. axis side convex wing and illuminance transducer go back to horizontal position again, continue to measure ..., are controlled by CPU and are constantly repeated
Above-mentioned measuring state and display state, constantly realize the real-time measurement and display of planar illumination.
Further, when the CPU controls continuous duplicate measurements state and display state, all axis side convex wings and illumination are passed
Sensor constantly transfers the change in location that presentation is horizontal, vertical, horizontal, vertical ... around axis reciprocating rotary simultaneously, reaches in illumination photometer
The effect of interior stirring air, so that air themperature is uniform in illumination photometer, the temperature sensor is fixed on nearly centre in cap,
Air themperature measured by it can represent the air themperature in illumination photometer everywhere, convenient for temperature-compensation circuit is arranged in illumination photometer.
Further, the three-color LED receives digital analog converter DAC1~DAC3After driving signal, the light of different colours is issued,
The color of light indicates the range of the surveyed brightness value of illuminance transducer right above it, is indicated with the red of seven color visible lights: illumination <
100lx；Orange expression: 100lx≤illumination < 300lx；Yellow indicates: 300lx≤illumination < 500lx；Green indicates: 500lx≤
Illumination < 2000lx；Cyan indicates: 2000lx≤illumination < 5000lx；Blue indicates: 5000lx≤illumination < 10000lx；Purple table
Show: illumination >=10000lx is suitable for writing operation according to different luminescent colors can intuitively understand which region in plane, which
Region then needs to be promoted or reduced illumination.
Further, the concave mirror surface uses polishing metal mirror surface as opening upwards concave surface, and concave surface maximum horizontal radius is small
In the round tube hole radius of cap, concave bottom has through-hole, and the pin of each three-color LED passes through the number on the through-hole, with circuit board
Mode converter DAC1~DAC3Port and data selector MUX2Port welding.
The beneficial effects of the present invention are: Portable plane illumination photometer of the invention utilizes rotatable illuminance transducer square
The up-down structure of battle array and three-color LED matrix, illumination should be measured to each point in plane by solving, and show asking for brightness value again
Topic；Circuit lead is also served as with mechanical structure, solves the problems, such as to be difficult to lay a large amount of conducting wires in mancarried device；With axis side convex wing with
Illuminance transducer matrix rotates simultaneously, so that air themperature tends to uniformly, simplify and sense illumination everywhere everywhere in the present apparatus
The issues of temperature compensation of device；Qualitative intuitive display with the luminescent color of three-color LED matrix to multiple spot illumination photometry value in plane,
The point illumination photometry of conventional illumination meter is extended to planar illumination measurement, so that family and school are to teenager's office operation plane
Interior Illumination Distribution is very clear, is conducive to teenager's sight protectio；The right baffle-plate or right shell body of pull-out are for simulating teenager
When doing one's assignment, can influence of the shelter of left or right side to work surface illumination fold to predefine work surface nearby
Put the data such as book, notes.
Detailed description of the invention
Fig. 1 is Portable plane illumination photometer circuit diagram of the invention；
Fig. 2 is Portable plane illumination photometer top view and its partial sectional view of the invention；
Fig. 3 is the sectional view along A-A of Portable plane illumination photometer measuring state of the invention；
Fig. 4 is the sectional view along A-A that Portable plane illumination photometer of the invention shows state；
Fig. 5 is the B-B direction cross-sectional view of Portable plane illumination photometer measuring state of the invention；
Fig. 6 is the B-B direction cross-sectional view that Portable plane illumination photometer of the invention shows state.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, Portable plane illumination photometer circuit diagram, switch SB is closed CPU and is powered, into measuring state:
The O of CPU2Port exports low level, triode T2Cut-off, lower core 26 power off；O1Port exports high level, three poles
Pipe T1Saturation, upper core 15 are powered；O3Port command liquid crystal display clear screen；Digital analog converter DAC1~DAC3Port output is low
Level, the D of n three-color LED1~DnDo not shine；Cpu instruction address wire A1……AmLevel change so that n illumination passes
Sensor E1~EnSuccessively by data selector MUX1It is connected to analog-digital converter ADC1, illuminance signal, and analog-to-digital conversion are acquired for CPU
Device ADC2The real time temperature signal for then receiving temperature sensor output makees temperature-compensating when calculating illumination for CPU.In spatial position
On, the E of illuminance transduceriThe D of three-color LED should be located atiSurface.
After CPU finds out n brightness value and corresponding three colors drive signal value, it is switched to display state:
CPU does not receive analog-digital converter ADC1And ADC2Input；O1Port exports low level, triode T1Cut-off, upper iron
Core 15 powers off；O2Port exports high level, triode T2Saturation, lower core 26 are powered；Even if illuminance transducer is 10 X, 10 matrix
Planar illumination measurement, n=100, therefore mancarried device shows the mass data of such multiple spot, using O3Port command liquid crystal
E in display Pagination Display illuminance transducer matrix1~EnMeasured value method；Cpu instruction address wire A1……AmLevel becomes
Change, so that data selector MUX2Successively D1~DnThe cathode of three-color LED is connected to the end GND and reaches and successively gate three-color LED
Effect, the D to the three-color LED being strobedi, CPU pass through digital analog converter DAC1~DAC3Port output illuminance sensor EiMeasurement
Three corresponding color driving signals of value, enable DiIt shines, with its top of luminescent color qualitative representation illuminance transducer EiSurveyed illumination.
When circulation drives n three-color LED to shine, persisted according to human visual, observer can see the illumination of each point in entire plane
Display.The present invention will finally determine the regional area that suitable teenager does one's assignment, therefore according to each point Illumination Distribution in plane
Qualitative display is main display mode, and the quantitative Pagination Display of liquid crystal display is not easy to user while observing each point illumination
Value, can be used as auxiliary display mode.Display state terminates, and CPU is switched to measuring state again, is measured next time.As a result,
The continuous handover measurement state of CPU and display state, are achieved that the real-time measurement and display of planar illumination, until switch SB is cut off
Power supply.
Portable plane illumination photometer top view and its partial sectional view as shown in Figure 2, including the left side on the left of cap 5, cap
The cosine school of baffle 14 and the positive switch 6 of the right shell body 7 on right side, cap and liquid crystal display 8, the positive centralized arrangement of cap 5
4 matrix of positive device, each cosine corrector 4 are communicated through 25 matrix of round tube hole immediately below it with 3 matrix of shading lattice, each shading lattice 3
Four side it is all vertical with 5 top surface of cap, radial section is all identical square, is in same immediately below 3 matrix of shading lattice
The illuminance transducer matrix that each metal-toothed wheel shaft in one plane and the illuminance transducer 1 for being bonded in axis side convex wing 24 are constituted,
It is 2 matrix of concave mirror surface immediately below it.Each gear shaft and its gear are metal one, secondly end passes through on bearing and circuit board 12
Bracket 11 connect, the axis of each gear shaft, which is in the same plane, to be parallel to each other, and driving gear shaft 9 is located in each gear shaft
Between position, secondly side is more driven gear shafts 10.
When the illumination photometer is placed on normal use in operation plane, top view is as shown in Figure 2.It is initial after the closure of switch 6
State is measuring state shown in Fig. 2, and under CPU control, driving gear 19 is revolved simultaneously by 1:1 engaged transmission, all gears
Turn, so that each illuminance transducer 1 is in same level, and upward state simultaneously, ambient penetrate cosine corrector 4 and be irradiated to
Illuminance transducer 1, illuminance transducer matrix just export the illuminance signal of the plane each point.At that time each cosine corrector 4 and its
The round tube hole 25 of underface, shading lattice 3, illuminance transducer 1 in horizontal direction center line be overlapped, and the centerline of every a line
In in same plane, the centerlines of each column is in same plane, and each center line is parallel to each other.
The sectional view along A-A of Portable plane illumination photometer measuring state as shown in Figure 3, the top surface of cap 5 are mutual in side
Vertically, top is a column round tube hole 25, and the top of each round tube hole 25 places cosine corrector 4 and constitutes column cosine correction
Device, the lower radius of round tube hole are less than upper radius to support cosine corrector 4, and 5 inside top of cap is and cap one
A column shading lattice 3, the side of each shading lattice is equidistant, and all vertical with 5 top surface of cap, the lower section of shading lattice 3 be bonding
A column illuminance transducer 1 in the axis side convex wing 24 of driving gear shaft 9, driving gear shaft 9 is through a column shading right above it
The groove 31 of lattice 3, welded on fixed circuit board 12 with bottom plate 22 bracket 11, CPU and its peripheral circuit, a column concave mirror surface 2,
One column three-color LED 23, bracket 11 supports driving gear shaft 9 and the driving gear of a rectangle permanent magnetism bar 17 has been welded in end
19, driving gear 19 and driving gear shaft 9 are metal one.Temperature sensor 21 is fixed on nearly centre in illumination photometer.
Under measuring state, the upper core 15 for being vertically fixed on 5 inside top of cap is powered, and lower core 26 powers off, and makes iron
Core 15 become the pole S in upper end and the pole N in the electromagnet of lower end, the pole N and the S of permanent magnetism bar 17 are extremely attracting, then the S of permanent magnetism bar 17
Pole is driven the long side of driving gear 19 pivoting to permanent magnetism bar 17 together vertical with bottom plate 22 by attraction, permanent magnetism bar with it is upper
The lower end of iron core 15 stops operating after being attracted；Pass through 1:1 engaged transmission, the driven gear of two sides of rotation driving of driving gear 19
It rotates jointly, each gear shaft rotates to each illuminance transducer 1 in 24 plane of axis side convex wing stopping when reaching in positive horizontal direction
Movement, i.e., illuminance transducer 1 faces up under diagram state, receives ambient light photograph, and output illuminance signal is acquired for CPU, together
When temperature sensor 21 also export measured temperature signal for CPU acquire.The signal wire of illuminance transducer 1 is the thin spring silk 20 of metal,
It hangs down from gear shaft, with the data selector MUX on circuit board 121It is welded to connect.Due to the gear shaft radius of mancarried device
Carefully, it rotates and causes the deformation of the thin spring silk 20 also small for 90 ° of each gear shaft, which only meets the bullet of Hooke's law
Property it is flexible, antidetonation and anti-deformation effects can be reached, and do not influence as circuit signal line on it.
Concave mirror surface 2 uses polishing metal mirror surface as opening upwards concave surface, and concave bottom has through-hole, and concave surface maximum horizontal half
Diameter is less than the round tube hole radius of cap 5, and the pin of each three-color LED 23 passes through the digital-to-analogue conversion on the through-hole, with circuit board 12
Device port DAC1~DAC3 and the welding of the port data selector MUX2.Bottom plate 22 is fixed by screw and cap 5.
Portable plane illumination photometer as shown in Figure 4 shows the sectional view along A-A of state, is on the basis of Fig. 3, to upper core
15 power-off, and lower core 26 is powered, so that the pole S of permanent magnetism bar 17 is attracted by lower core, then the pole S of permanent magnetism bar 17 is by attraction
And driving gear 19 is driven to be pivoted 90 ° together, the long side of permanent magnetism bar 17 goes to horizontal position, and the insulation of long side bonding is slow
Pad 16 is rushed to against 15 lower end of upper core, the buffer insulation underlay 18 of long side bonding abuts lower core upper end, engages and pass by 1:1
Dynamic, the driven gear of two sides of the rotation driving of driving gear 19 rotates jointly, and each gear shaft is rotated to each photograph in axis side convex wing 24
Spend sensor 1 and 22 upright position of bottom plate.
In order to realize illumination photometer to the real-time measurement and display of planar illumination, CPU need to constantly switch Fig. 3 measuring state and
The display state of Fig. 4, so that each axis side convex wing 24 and 1 reciprocal 90 ° of rotary motion of each illuminance transducer thereon, so that illumination photometer
Interior air themperature is uniform, therefore a temperature sensor 21 is only needed to be fixed on nearly centre in cap 5, measured by air themperature
Air themperature everywhere in illumination photometer can be represented, the structure is convenient for setting temperature-compensation circuit in illumination photometer.
Here it is shown that state, 23 timesharing of three-color LED is by the digital analog converter DAC of CPU1~DAC3Signal is driven, it is issued
Luminescent color corresponding to the measured value of surface illuminance transducer 1, such as red expression: illumination < 100lx；Orange expression:
100lx≤illumination < 300lx；Yellow indicates: 300lx≤illumination < 500lx；Green indicates: 500lx≤illumination 2000lx；Cyan
It indicates: 2000lx≤illumination < 5000lx；Blue indicates: 5000lx≤illumination < 10000lx；Purple indicates: illumination >=
10000lx, and the achievable general visual task of 300~500lx of usually yellow representative, 500~2000lx that green represents can
The operation that has certain requirements to vision is completed, therefore user need to only see that luminescent color is known that the region if appropriate for affected
Industry, and whether need to increase or decrease local illumination.Since the luminous end of each three-color LED 23 is respectively positioned on the coke of concave mirror surface 2
Point, so that the light that three-color LED 23 issues is reflected by concave mirror surface vertically upward mostly, shading lattice 3, the round tube hole across surface
25, cosine corrector 4 is projected to outside cap 5 and is shone, and the equal blacking in each side of shading lattice absorbs the spuious of lower section three-color LED sending
Light in order to avoid stray light is leaked out through adjacent cosine corrector 4, and forms interfering with each other for assorted light.In vertical position
The horizontal cross-section of the axis side convex wing and illuminance transducer 1 set is much smaller than the horizontal cross-section of round tube hole 25, therefore it is to reflection light
The effect of blocking is negligible, and the reflection light overwhelming majority projects cap 5.
The B-B direction cross-sectional view of Portable plane illumination photometer measuring state as shown in Figure 5, the empty slot of two side of left and right of cap 5
Inside it is respectively embedded into right baffle-plate 14 and right shell body 7, there is a left barb 29 in 14 lower end of right baffle-plate, and there is a right barb 27 in 7 lower end of right shell body, and two kinds
Baffle is made of plastics, and barb is by cell wall elastic compression, so that the stiction of baffle and slot is self-possessed greater than baffle, baffle
When being pulled out shielding light photograph out of slot, baffle can be stopped in any position without because self weight is glided；Right shell body 7 is excessively drawn
Out, right barb 27 is unfolded in the right chamber of right side groove, and right shell body is prevented to be drawn out outside slot, also can guarantee barb when baffle is pressurized
It collapses, can back into slot.
The right shell body 7 being drawn out is for simulating during teenager does one's assignment, the case where light from right side is blocked,
This causes the measured value of certain illuminance transducers 1 to reduce, each point Illumination Distribution that illumination photometer is shown will from it is unobstructed when it is different, by
Can this can be predicted before operation stack data such as book, notes etc. on the right side of it.If pulling out right baffle-plate 14, can simulate from left side
Light be blocked situation.
Driving gear 19 on driving gear shaft 9 engages connection with the driven gear 13 on the driven gear shaft 10 of two sides,
Also engagement connection between adjacent driven gear 10, each gear shaft axis is contour and is parallel to each other.Each gear shaft and with its one
Gear is connect by bearing with bracket 11, and bracket 11 is welded on the zero curve of circuit board 12, each gear shaft and secondly the bearing held
It is good conductor metal, such as copper with bracket, so that each gear shaft is both machine components, also can be considered the extension of circuit zero curve
Section；Circuit board 12 is fixed on bottom plate 22, and bottom plate is fixed with cap 5 by screw.It is vertically fixed on the upper of 5 inside top of cap
Iron core 15 is powered, and lower core 26 powers off, and so that upper core 15 is become the pole S in upper end and electromagnet of the pole N in lower end, the pole N and weldering
The S for connecing the permanent magnetism bar 17 on driving gear 19 is extremely attracting, and then the pole S of permanent magnetism bar 17 is driven driving gear 19 by attraction
The long side of pivoting to permanent magnetism bar 17 is vertical with bottom plate 22 together, and pad 16 abuts on the buffer insulation of 17 long side of permanent magnetism bar bonding
The buffer insulation underlay 18 of 15 lower end of upper core, long side bonding abuts 26 upper end of lower core, on buffer insulation pad 16 iron core with
When permanent magnetism bar collides, anticollision buffer function was not only played, but also play electric insulation, and had kept the coil of upper core 15 and permanent magnetism bar 17 electrical
Isolation, buffer insulation underlay 18 then play anticollision buffer function.By 1:1 engaged transmission, driving gear 19 rotates so that each driven
Gear rotates together, the rotation so that illuminance transducer be in horizontal direction receive ambient light shine and output illuminance signal measurement
Value, is acquired by CPU.
Portable plane illumination photometer as shown in Figure 6 shows the B-B direction cross-sectional view of state, and on the basis of Fig. 5, upper core 15 is disconnected
Electricity, lower core 26, which is powered, forms that upper end is the pole N and lower end is the electromagnet of the pole S, so that the 17 lower end pole N of permanent magnetism bar and lower core 26
The pole N repel each other, and the 17 upper end pole S of permanent magnetism bar and the N of lower core 26 are extremely attracting, so that permanent magnetism bar 17 be made to drive 19 He of driving gear
Driving gear shaft 9 rotates, while by 1:1 gear engaged transmission, each driven gear 13 and driven gear shaft 10 being driven to rotate；When
When being rotated up to 90 °, the pole S of permanent magnetism bar 17 hits the pole N of lower core 26, and the pole N of permanent magnetism bar 17 hits the bottom of upper core 15
Portion, buffer insulation underlay 18 had not only played anticollision buffer function, but also played electric insulation, made the coil and permanent magnetism bar 17 of lower core 26
Electrical isolation, pad 16 then plays anticollision buffer function on buffer insulation.Each axis side convex wing and illuminance transducer all will be with bottom plates at that time
22 is vertical, enters display state at that time, cpu instruction three-color LED and liquid crystal display are made illumination and shown.
Claims (9)
1. a kind of Portable plane illumination photometer, including illuminance transducer (1) matrix, cosine corrector (4) matrix, cap (5), electricity
Road plate (12), bottom plate (22) and three-color LED (23) matrix, it is characterised in that: the top of the cap (5) is equipped with round tube hole (25)
The size shape of matrix, each round tube hole (25) is identical, and cosine corrector (4) are placed on round tube hole (25) top, two neighboring circle
The center of through-hole (25) constitutes cosine corrector matrix, is successively arranged and cap one immediately below round tube hole (25) matrix away from equal
Body and side are each perpendicular to shading lattice (3) matrix at the top of cap (5), are bonded in driving gear shaft (9) and driven gear shaft
(10) illuminance transducer (1) matrix in axis side convex wing (24) plane, concave mirror surface (2) matrix being fixed on circuit board (12)
With three-color LED (23) matrix being located in concave mirror surface；The side of round tube hole (25) matrix is equipped with switch (6) and liquid crystal display
Device (8)；Bracket (11), CPU and its peripheral circuit, concave mirror surface (2), three are welded on fixed circuit board (12) with bottom plate (22)
Color LED (23), the driving gear shaft (9) are located at the middle position of each driven gear shaft (10), driving gear shaft (9) He Gecong
Movable gear shaft (10) is connect with respective bracket (11) respectively, the driving gear (19) on driving gear shaft (9) and two sides from
Driven gear (13) on movable gear shaft (10) engages connection, engages connection, each gear shaft axis between adjacent driven gear (13)
Line is contour and is parallel to each other, and transmission ratio is 1:1 between each gear；A rectangle permanent magnetism is welded on the driving gear (19)
Bar (17), axis side convex wing (24) plane and illuminance transducer (1) plane thereon of the long side perpendicular to driving gear shaft (9)；
Cap (5) inside top corresponds to and is equipped with upper core (15) at rectangle permanent magnetism bar (17), corresponds to square on the circuit board (12)
Lower core (26) are equipped at shape permanent magnetism bar (17)；When the illuminance transducer (1) is in position in horizontal direction, each cosine correction
The center of device (4) and round tube hole (25), shading lattice (3), illuminance transducer (1), concave mirror surface (2), three-color LED (23) below
Line is overlapped；The digital analog converter DAC of the anode connection CPU of the three-color LED (23)1~DAC3Port, cathode connect data choosing
Select device MUX2；The signal end of the illuminance transducer (1) passes through data selector MUX1Connect the analog-digital converter ADC of CPU1End
Mouthful, the analog-digital converter ADC of CPU2Port connects the output end of temperature sensor (21), three control signal output O of CPU1
~O3It is separately connected upper core (15), lower core (26) and liquid crystal display (8).
2. Portable plane illumination photometer according to claim 1, it is characterised in that: the left and right sides of the cap (5)
Right baffle-plate (14) and right shell body (7) are respectively embedded into empty slot；The liquid crystal display (8) receives the O of CPU3The instruction at end controls
Signal is shown in illuminance transducer (1) matrix measured by each illuminance transducer (1) by the layout of illuminance transducer (1) matrix
Brightness value.
3. Portable plane illumination photometer according to claim 2, it is characterised in that: right baffle-plate (14) lower end is equipped with a left side
Barb (29), right shell body (7) lower end are equipped with right barb (27), and respectively in the slot of the arranged on left and right sides of cap (5), and left
Barb (29) and right barb (27) are respectively by cell wall elastic compression, so that left and right baffle (14,7) and the stiction of slot are greater than
Baffle self weight, when right baffle-plate (14) or right shell body (7) are drawn out when shutting out the light out of slot, the right baffle-plate (14) or right shell body
(7) it stops in any position without because self weight is glided；When excessively pulling out right baffle-plate (14) and right shell body (7), left barb
(29) expansion in the left chamber of left side groove (30), and right barb (27) expansion in the right chamber (28) of right side groove, prevent baffle quilt
It pulls out outside slot, guarantees that barb collapses when baffle is pressurized, and backs into slot.
4. Portable plane illumination photometer according to claim 1, it is characterised in that: the luminous end of each three-color LED (23),
Focus positioned at concave mirror surface (2) passes through just so that the light that each three-color LED (23) issues is reflected vertically upward by concave mirror surface
Shading lattice (3), round tube hole (25), the cosine corrector (4) of top are projected outside to cap (5) and are shone, the side of shading lattice (3)
Equal blacking absorbs the stray light that lower section three-color LED (23) issues, in case stray light is through adjacent cosine corrector (4) to leaking
Leakage, and form interfering with each other for assorted light；The CPU passes through control address wire A1……AmSo that data selector MUX2Point
When the cathode of each three-color LED (23) is grounded in turn, and by digital analog converter DAC1~DAC3The value of electrical signals combination at end makes each
A three-color LED (23) issues the light color of its corresponding surface illuminance transducer (1) surveyed illumination.
5. Portable plane illumination photometer according to claim 1, it is characterised in that: the driving gear shaft (9) and driven
Radial section is in rectangle at the axis side convex wing (24) of gear shaft (10), and radial section is rounded at the rest of axis, every rooted tooth wheel
Axis runs through the groove (31) of a column shading lattice (3)；Driving gear shaft (9) and driving gear (19) are in one, every driven tooth
Wheel shaft (10) is integrated with driven gear (13) thereon, and the both ends of driving gear shaft (9) and driven gear shaft (10) lead to respectively
It crosses bearing to connect with bracket (11), and each gear shaft, bearing and bracket are made of good conductor metal, the illumination sensing
The zero curve of device (1) is welded with the axis side convex wing (24) where it, and bracket (11) is then welded with the zero curve on circuit board (12), institute
The zero curve for stating illuminance transducer (1) passes through driving gear shaft (9) or driven gear shaft (10) and its bearing and bracket (11) and electricity
Road zero curve is connected；The signal wire of the illuminance transducer (1) is using thin spring silk (20) made of good conductor metal, and from driving tooth
Wheel shaft (9) or driven gear shaft (10) hang down, with the data selector MUX on circuit board (12)1It is welded to connect.
6. Portable plane illumination photometer according to claim 1, it is characterised in that: under initial measured state, the permanent magnetism
Bar (17) magnetic pole S is upper, and for magnetic pole N under, the long side of permanent magnetism bar (17) bonds insulation on the side of long side perpendicular to bottom plate (22)
(16) are padded in buffering, and pads (16) on buffer insulation and abuts upper core (15) lower end for being fixed on cap (5) inside top, long side
The other side on bond buffer insulation underlay (18), and buffer insulation underlay (18) abuts the lower iron that is fixed on circuit board (12)
Core (26) upper end；As the O of CPU2End output low level, O1When the output high level of end, lower core (26) power-off, and upper core
(15) it is powered, so that upper core (15) forms the pole S in electromagnet upper and that the pole N is under, the pole N of upper core (15) and permanent magnetism bar
(17) magnetic pole S is attracting, and permanent magnetism bar (17) is sucked fixation, is padded on the buffer insulation between upper core (15) and permanent magnetism bar (17)
(16) the anticollision buffering that has been pressurized and electric insulation effect, while buffer insulation underlay (18) is by permanent magnetism bar (17) and lower core (26)
Compressing, plays anticollision buffer function, and axis side convex wing (24) plane on driving gear shaft (9) and driven gear shaft (10) is parallel to bottom
Plate (22), when illumination photometer is lain in work surface, the illuminance transducer (1) in the convex wing of each axis side is in same level,
Center is located on the center line of cosine corrector (4) and three-color LED (23), constitutes illumination photometry matrix, the illumination photometry square
Battle array receives the illumination that the external world penetrates cosine corrector from top to bottom and comes, to data selector MUX1Output illuminance electric signal, CPU
By controlling address wire A1……AmSo that data selector MUX1Each road illumination electric signal is inputted the analog-to-digital conversion of CPU by timesharing
Device ADC1, while analog-digital converter ADC2The real time temperature signal of temperature sensor (21) output is received, which supplies
CPU makees temperature-compensating when calculating illumination；After CPU calculates each brightness value and corresponding tristimulus signal, into display state；
As the O of CPU2End output high level, O1When the output low level of end, upper core (15) power-off, lower core (26) is powered, is formed
Upper end is the pole N and lower end is the electromagnet of the pole S, so that permanent magnetism bar (17) lower end pole N is repelled each other with lower core (26) pole N, and permanent magnetism
Bar (17) upper end pole S and lower core (26) N are extremely attracting, and permanent magnetism bar (17) is caused to drive driving gear (19), driving gear shaft (9)
And its in axis side convex wing (24) illuminance transducer (1) rotation, while by gear engaged transmission, drive driven gear (13),
Illuminance transducer (1) rotation on driven gear shaft (10) and its axis side convex wing (24)；When being rotated up to 90 °, permanent magnetism bar
(17) the pole S hits lower core (26) pole N, and the pole N of permanent magnetism bar (17) hits upper core (15) bottom, pads (16) on buffer insulation
Anticollision buffer function is played, buffer insulation underlay (18) plays anticollision buffering and electric insulation, by permanent magnetism bar (17) by lower core
(26) fixation is sucked, the long side of permanent magnetism bar (17) is made to go to horizontal position, and makes each axis side convex wing (24) and illuminance transducer (1)
Also all rotation is extremely vertical with bottom plate, and the CPU passes through control output end O3Liquid crystal display (8) are made to show illumination value matrix, CPU
Control address wire A1……AmWith digital analog converter DAC1~DAC3Output, timesharing circulation are connected each in three-color LED (23) matrix
Three-color LED (23), is allowed to that the light color issued is corresponding with brightness value, and the persistence of vision of user makes it to observe three colors simultaneously
The assorted light distribution that LED (23) matrix is issued, to intuitively understand the distribution of planar illumination measured by illuminance transducer (1)；
Then CPU issues command signal again powers off lower core (26), and upper core (15) is powered, and returns to measuring state, i.e. axis side is convex
The wing (24) and illuminance transducer (1) go back to horizontal position again to be continued to measure ..., constantly repeats above-mentioned measuring state by CPU control
With display state, the real-time measurement and display of planar illumination are constantly realized.
7. Portable plane illumination photometer according to claim 6, it is characterised in that: the CPU controls continuous duplicate measurements
When state and display state, all axis side convex wings (24) and illuminance transducer (1) constantly transfer to present around axis reciprocating rotary simultaneously
Horizontal, vertical, horizontal, vertical ... change in location achievees the effect that stir air in illumination photometer, so that empty in illumination photometer
Temperature degree is uniform, and the temperature sensor (21) is fixed on nearly centre in cap (5), measured by air themperature can represent
Air themperature in illumination photometer everywhere, convenient for temperature-compensation circuit is arranged in illumination photometer.
8. the Portable plane illumination photometer according to claim 4 or 6, it is characterised in that: the three-color LED (23) receives number
Mode converter DAC1~DAC3After driving signal, the light of different colours is issued, the color of light indicates illuminance transducer institute right above it
The range for surveying brightness value, is indicated: illumination < 100lx with the red of seven color visible lights；Orange expression: 100lx≤illumination < 300lx；
Yellow indicates: 300lx≤illumination < 500lx；Green indicates: 500lx≤illumination < 2000lx；Cyan indicates: 2000lx≤illumination <
5000lx；Blue indicates: 5000lx≤illumination < 10000lx；Purple indicates: illumination >=10000lx, according to different luminous face
It is suitable for writing operation that color, which intuitively understands which region in plane, which region then needs to be promoted or reduced illumination.
9. Portable plane illumination photometer according to claim 1, it is characterised in that: the concave mirror surface (2) uses polishing metal
Mirror surface is as opening upwards concave surface, and concave surface maximum horizontal radius is less than the round tube hole radius of cap (5), and concave bottom has logical
Hole, the pin of each three-color LED (23) pass through the digital analog converter DAC on the through-hole, with circuit board (12)1~DAC3Port with
And data selector MUX2Port welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910091270.0A CN109632091B (en) | 2019-01-30 | 2019-01-30 | Portable plane illuminometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910091270.0A CN109632091B (en) | 2019-01-30 | 2019-01-30 | Portable plane illuminometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109632091A true CN109632091A (en) | 2019-04-16 |
| CN109632091B CN109632091B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060132779A1 (en) * | 2004-12-22 | 2006-06-22 | Bayer Materialscience Llc | Process photometer |
| CN101059368A (en) * | 2007-04-16 | 2007-10-24 | 杭州远方光电信息有限公司 | Distribution photometer |
| CN202471101U (en) * | 2012-02-10 | 2012-10-03 | 无锡科来姆环境科技有限公司 | Environment ultraviolet index board |
| CN105758516A (en) * | 2016-05-18 | 2016-07-13 | 南京嘉瑞斯电力科技有限公司 | Optical sensor |
| AU2015403945A1 (en) * | 2015-07-30 | 2017-12-14 | Mitsubishi Electric Corporation | Indoor unit of air conditioners |
-
2019
- 2019-01-30 CN CN201910091270.0A patent/CN109632091B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060132779A1 (en) * | 2004-12-22 | 2006-06-22 | Bayer Materialscience Llc | Process photometer |
| CN101059368A (en) * | 2007-04-16 | 2007-10-24 | 杭州远方光电信息有限公司 | Distribution photometer |
| CN202471101U (en) * | 2012-02-10 | 2012-10-03 | 无锡科来姆环境科技有限公司 | Environment ultraviolet index board |
| AU2015403945A1 (en) * | 2015-07-30 | 2017-12-14 | Mitsubishi Electric Corporation | Indoor unit of air conditioners |
| CN105758516A (en) * | 2016-05-18 | 2016-07-13 | 南京嘉瑞斯电力科技有限公司 | Optical sensor |
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| CN109632091B (en) | 2020-10-09 |
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