CN209673221U - A kind of light source monitoring system - Google Patents
A kind of light source monitoring system Download PDFInfo
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- CN209673221U CN209673221U CN201920388496.2U CN201920388496U CN209673221U CN 209673221 U CN209673221 U CN 209673221U CN 201920388496 U CN201920388496 U CN 201920388496U CN 209673221 U CN209673221 U CN 209673221U
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Abstract
The utility model discloses a kind of light source monitoring systems, mainly include light source controller, the light source board connecting with light source controller, data presentation device；The light source board mainly includes first structure outline border, the second structure outline border, diffuser plate, diffusion barrier, light guide plate, the two sides of light guide plate are followed successively by diffusion barrier, diffuser plate respectively, the mode of being centrosymmetric is arranged between first structure outline border and the second structure outline border, and first structure outline border inward flange is provided with lamp bar；Color sensor, data processing and conversion circuit are installed, color sensor is located at the center inside the second structure outline border, and color sensor, data processing and conversion circuit, light source controller are sequentially connected with inside the second structure outline border.The utility model the light source board design and the setting of color sensor compact by structure optimization, realize the real-time accurate monitoring of light source parameters, solve the problems, such as that light source monitoring passes through manual testing, reduce the use of client light source measurement instrument.
Description
Technical field
The utility model relates to optical fields, more particularly to a kind of light source monitoring system.
Background technique
With the high speed development of camera industry, the type of light source is more and more diversified, and the requirement for detecting light source is also more next
It is higher thus also higher and higher to light source board requirement.
In the structure of light source board, light guide plate (light guide plate) is acrylic/PC plate using optical grade
Material is carved in the acryl plates bottom surface of optical grade with laser then with having high reflectivity and the not hitech materials of extinction
It carves, V-type cross grid engraving, UV screen printing technology stamp light guiding points.It is drawn using optical grade acryl plates from lamp and is issued
The light come is in the stop on optical grade acryl plates surface, and when light is mapped to each light guiding points, reflected light can be toward all angles
Then diffusion destroys conditioned reflex and is projected by light guide plate front.By various densitys, light guiding points not of uniform size, leaded light can be made
Plate uniformly light-emitting.The purposes of reflector plate is that the light for exposing bottom surface is reflected back in light guide plate, for improving the service efficiency of light；
In the case of homalographic light emission luminance, luminous efficiency is high, low in energy consumption.
Point light source or linear light source emit beam into propagating in light guide plate, by light guide plate with optical texture design
Bottom surface and reflecting plate project light diffusion, and are evenly distributed in light emitting region, to cooperate the optical characteristics of liquid crystal display
It is required that.When more smooth due to the surface of light guide plate, light is easily made to generate scattering phenomenon, and in turn to the visual angle of image and light
The uniformity has an impact.Therefore, the bottom or top of part light guide plate are provided with multiple micro-structures, to lower light in leaded light
The scattering phenomenon that plate surface generates, and promote whole outgoing light homogeneity and radiance degree.
Light guide plate is as component indispensable in light source board, to the requirement with higher of the quality of light guide plate.Light guide plate
Loss of the light source in conductive process it is more serious, the conductibility of light is bad, the ginseng for the light that light source upper and lower surface can be made to issue
Number is inconsistent, and the accuracy rate of light source detection is caused to substantially reduce.
Therefore it is urgent to provide a kind of novel light source monitoring systems to solve the above problems.
Utility model content
It is compact by structure optimization the technical problem to be solved by the utility model is to provide a kind of light source monitoring system
Light source board design and the setting of color sensor, significantly improve the accuracy rate of light source detection.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of light source monitoring system
System mainly includes light source controller, the light source board connecting with light source controller, data presentation device；
The light source board mainly includes first structure outline border, the second structure outline border, diffuser plate, diffusion barrier, light guide plate, leaded light
The two sides of plate are followed successively by diffusion barrier, diffuser plate respectively, and the mode of being centrosymmetric is arranged in outside first structure outline border and the second structure
Between frame, first structure outline border inward flange is provided with lamp bar；
Color sensor, data processing and conversion circuit, color sensor position are installed inside the second structure outline border
Center inside the second structure outline border, color sensor, data processing and conversion circuit, light source controller sequentially connect
It connects.
In one preferred embodiment of the utility model, front and the back side of the light guide plate are to get face ready.
In one preferred embodiment of the utility model, the light guide plate is the high-purity light guide plate of 5mm thickness.
In one preferred embodiment of the utility model, the diffuser plate is smooth surface close to the one side of diffusion barrier, far from expansion
The one side for dissipating film is Shamian Island.
In one preferred embodiment of the utility model, the diffuser plate is the husky acrylic of a light one of 3mm thickness.
In one preferred embodiment of the utility model, the lamp bar is mutually mixed by multiple groups lamp bead.
In one preferred embodiment of the utility model, the color sensor passes through I2C bus and data processing with turn
Circuit connection is changed, the data processing is connect by RS485 interface with light source controller with conversion circuit.
In one preferred embodiment of the utility model, the data presentation device includes charactron, computer.
Further, the charactron is connect with light source controller, and the computer passes through RS232 interface and light source controller
Connection.
Further, the light source controller uses single-chip microcontroller.
The beneficial effects of the utility model are:
(1) the utility model light source board design and the setting of color sensor compact by structure optimization, examines light source
The quality of survey significantly improves, and the assembling optical sources of the light source board are centered on light guide plate, form that upper and lower surface is centrosymmetric
It arranges diffusion barrier and diffuser plate, the parameter for the light that two sides issues above light source can be made most to be intended to unanimously, so that light source parameters are supervised
The accuracy rate of control significantly improves；
(2) light source board embeds optical parameter such as colour temperature, chromaticity coordinates, the photograph of miniature color sensor real time monitoring light source
Degree, solution current device is more and more compacter and is difficult to a difficult point for inspection light source variation；Color sensor is mounted on light source simultaneously
The center of reverse side can effectively monitor the parameter that client uses light source, the light that the light source parameters of monitoring and client use
Deviation is not present in source parameter, and the parameter of light source variation and the parameter that color sensor is read are in increasing or decreasing with amplitude,
The monitoring effect of light source is good.
Detailed description of the invention
Fig. 1 is the structural block diagram of one preferred embodiment of the utility model light source monitoring system；
Fig. 2 is the positive three-dimensional structure diagram of the light source board；
Fig. 3 is the three-dimensional structure diagram of the light source back；
Fig. 4 is the explosive view of Fig. 3；
Fig. 5 is the functional block diagram of the light source monitoring system.
The components in the drawings are labeled as follows: 1, first structure outline border, the 2, second structure outline border, 3, diffuser plate, 4, diffusion
Film, 5, light guide plate, 6, lamp bar, 7, color sensor, 8, data processing and conversion circuit, 9, cover board, 10, sensor mounting groove.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Referring to Fig. 1, the utility model embodiment includes:
A kind of light source monitoring system is mainly shown including light source controller, the light source board connecting with light source controller, data
Device.The data presentation device includes charactron, computer, and the charactron is connect with light source controller, and the computer passes through
RS232 interface is connect with light source controller.The charactron is used for display light source plate inner light source parameter such as colour temperature, chromaticity coordinates, photograph
Degree, the computer monitor the true value of light source parameters in real time for client.
Further, the light source controller uses single-chip microcontroller STM32F103, low in energy consumption, economical easy-to-use, has good
Integrated performance.
Referring next to Fig. 2 to Fig. 4, the core of the system is specifically described --- the structure of light source board:
The light source board mainly includes first structure outline border 1, the second structure outline border 2, diffuser plate 3, diffusion barrier 4, light guide plate
5.In conjunction with Fig. 2 and Fig. 3, first structure outline border 1 and the second structure outline border 2 are fixed into slab construction, light source by several screws
The front of plate is diffuser plate 3, and the back side is the second structure outline border 2.1 inward flange of first structure outline border is provided with lamp bar 6, the lamp
Item 6 is mutually mixed by multiple groups lamp bead.
In conjunction with Fig. 4, the two sides of light guide plate 5 are followed successively by diffusion barrier 4, diffuser plate 3 respectively, and the mode of being centrosymmetric is arranged in
Between one structure outline border 1 and the second structure outline border 2.Centered on light guide plate 5, upper and lower surface is in the assembling optical sources of the light source board
Centrosymmetric form can be such that the parameter for the light that two sides issues above light source is most intended to unanimously, so that light source parameters monitoring
Accuracy rate significantly improves.
Preferably, the light guide plate 5 selects the high-purity light guide plate of 5mm thickness.Light guide plate 5 uses the two-sided carver got ready
Skill, make lamp bar 6 issue light be diffused into light source surface through diffuser plate 3 after repeatedly reflecting, thus make the colour temperature on light source surface,
Illuminance uniformity is up to 95% or more, and the loss in raw material and working hour is greatly saved, improve light source overall performance and
There is great improvement to light source manufacturing process.
Preferably, the diffuser plate 3 selects the husky acrylic of a light one for 3mm thickness.The diffuser plate 3 is close to diffusion barrier 4
It is on one side smooth surface, the one side far from diffusion barrier 4 is Shamian Island.3 smooth surface of diffuser plate plays the role of the internal reflection of light inwardly, improves
The light emission rate of light source, the slow decaying of light source parameters.
Color sensor 7, data processing and conversion circuit 8 are installed, outside is equipped with lid inside the second structure outline border 2
Plate 9.Color sensor 7 passes through I2C bus is connect with data processing with conversion circuit 8, and data processing passes through with conversion circuit 8
RS485 interface is connect with light source controller.The data processing and conversion circuit 8 mainly include single-chip microcontroller STM32F103,485
Chip SN65HVD485EDR and peripheral circuit.Color sensor 7 is mounted on the center inside the second structure outline border 2, at this
It is provided with sensor mounting groove 10, client can be effectively monitored and use the parameter of light source, while not interfering with making for client
With.Client can monitor the true value of light source parameters in real time, can stop in time after discovery light source parameters are exceeded, prevent because of light source
And the fraction defective generated.In contrast, it is assumed that color sensor 7 is mounted on the other positions of light source board, such as structural corners, side
Side, the light source parameters of monitoring can and the light source parameters that use of client there are certain deviations, and the parameter of light source variation is with color
The parameter that sensor 7 is read will not be in increasing or decreasing with amplitude, therefore the monitoring effect of light source can also have a greatly reduced quality.
By the light source board design and the setting of color sensor 7 that structure optimization is compact, the real-time standard of light source parameters is realized
Really monitoring solves the problems, such as that light source monitoring passes through manual testing, reduces the use of client light source measurement instrument, prevent
The influence of environmental factor, improves the efficiency and accuracy used, meets existing market demand when client's point examines light source.
In conjunction with Fig. 5, the color sensor 7 is used to obtain the RGB component value of light source, the data processing and conversion circuit
RGB component value is scaled XYZ coordinate value by mapping matrix operation by 8, then by XYZ coordinate value arithmetical operation be chromaticity coordinates xy,
Brightness Lv obtains colour temperature T and illumination Ev by chromaticity coordinates and brightness operation.Data processing leads to light source parameters with conversion circuit 8
It crosses RS485 interface to be transferred to controller and come out by numeral method, controller also passes through RS232 interface will be in light source parameters
The real-time monitoring and control of the brain that conducts electricity realization light source.Concrete operation process is as follows:
The colour temperature and illumination of light source are adjusted using light source controller first；
Then light source color temperature brightness is adjusted to (2850k, 3000lux), is tested to obtain X with reference instrument2850, Y2850,
Z2850, color sensor acquires R2850, G2850, B2850；
Light source color temperature brightness is adjusted to (4000k, 3000lux) again, is tested to obtain X with reference instrument4000, Y4000, Z4000,
Color sensor acquires R4000, G4000, B4000；
Light source color temperature brightness is finally adjusted to (6000k, 4000lux), is tested to obtain X with reference instrument6000, Y6000,
Z6000, color sensor acquires R6000, G6000, B6000.Calculation formula are as follows:
Deviation=reference instrument test value X sensor reading value-1；
XYZ calculation formula:
Chromaticity coordinates and brightness calculation formula:
X=X/ (X+Y+Z)
Y=Y/ (X+Y+Z)
Lv=Y
Colour temperature and luminance calculation formula:
CCT=449.0 × n3+3525.0×n2+6823.3×n+5520.33
N=(x-Xe)/(Ye-y)
Xe=0.3320
Ye=0.1858
Ev=Lv X π
The light source monitoring system uses the principle of luminosity of side entering light.Close to the reflection of the light positioned at 5 two sides of light guide plate
It puts tiny partially round row and spacing is become estranged, and the reflection point for being located at 5 middle section of light guide plate is close and coarse slightly ob-round.Work as light
Enter light guide plate from four side light sources, when a part encounters reflection point, diffusing reflection to 5 surface of light guide plate, another part is that light is direct
It penetrates light guide plate 5 and reaches surface.The direct light obtained closer to 5 position of light guide plate of light source is stronger, and separate is weaker；And it is another
Aspect, tiny by the reflection point of close to sources and become estranged, the light that diffusing reflection comes out is less, those of opposite remote light source it is coarse and
The light that close point reflection comes out is relatively abundant.After these light complex fusions, to achieve the effect that monolith light source board is bright.Simultaneously
The lamp bar 6 designs multiple groups lamp bead and is mutually mixed, by light source controller typing software can realize multi color temperature, more illumination
Automatic calibration, makes the light source monitoring system tend to intelligence, and compatible multiple color temperatures not only can satisfy the multi-party of client
Face test, and reduce the input cost of client, improve the service efficiency of client.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of light source monitoring system, which is characterized in that the light source for mainly including light source controller, being connect with light source controller
Plate, data presentation device；
The light source board mainly includes first structure outline border, the second structure outline border, diffuser plate, diffusion barrier, light guide plate, light guide plate
Two sides are followed successively by diffusion barrier, diffuser plate respectively, the mode of being centrosymmetric be arranged in first structure outline border and the second structure outline border it
Between, first structure outline border inward flange is provided with lamp bar；
Color sensor, data processing and conversion circuit be installed, color sensor is located at the inside the second structure outline border
Center inside two structure outline borders, color sensor, data processing and conversion circuit, light source controller are sequentially connected with.
2. light source monitoring system according to claim 1, which is characterized in that front and the back side of the light guide plate are to beat
Point face.
3. light source monitoring system according to claim 1, which is characterized in that the light guide plate is that the high-purity of 5mm thickness is led
Tabula rasa.
4. light source monitoring system according to claim 1, which is characterized in that the diffuser plate is close to the one side of diffusion barrier
Smooth surface, the one side far from diffusion barrier are Shamian Island.
5. light source monitoring system according to claim 1, which is characterized in that the diffuser plate is that a light one for 3mm thickness is husky
Acrylic.
6. light source monitoring system according to claim 1, which is characterized in that the lamp bar be mutually mixed by multiple groups lamp bead and
At.
7. light source monitoring system according to claim 1, which is characterized in that the color sensor passes through I2C bus and number
It is connect according to processing with conversion circuit, the data processing is connect by RS485 interface with light source controller with conversion circuit.
8. light source monitoring system according to claim 1, which is characterized in that the data presentation device include charactron,
Computer.
9. light source monitoring system according to claim 8, which is characterized in that the charactron is connect with light source controller,
The computer is connect by RS232 interface with light source controller.
10. light source monitoring system described according to claim 1 or 7 or 9, which is characterized in that the light source controller is using single
Piece machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388496.2U CN209673221U (en) | 2019-03-26 | 2019-03-26 | A kind of light source monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920388496.2U CN209673221U (en) | 2019-03-26 | 2019-03-26 | A kind of light source monitoring system |
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| CN209673221U true CN209673221U (en) | 2019-11-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017895A (en) * | 2019-03-26 | 2019-07-16 | 广州市轩士佳电子科技有限公司 | A kind of light source monitoring system |
| CN113390610A (en) * | 2020-03-11 | 2021-09-14 | 三赢科技（深圳）有限公司 | Light source device and light uniformity real-time monitoring system thereof |
-
2019
- 2019-03-26 CN CN201920388496.2U patent/CN209673221U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017895A (en) * | 2019-03-26 | 2019-07-16 | 广州市轩士佳电子科技有限公司 | A kind of light source monitoring system |
| CN110017895B (en) * | 2019-03-26 | 2023-11-14 | 广州市轩士佳电子科技有限公司 | Light source monitoring system |
| CN113390610A (en) * | 2020-03-11 | 2021-09-14 | 三赢科技（深圳）有限公司 | Light source device and light uniformity real-time monitoring system thereof |
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