CN206056922U - The device of light travels efficiency - Google Patents
The device of light travels efficiency Download PDFInfo
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- CN206056922U CN206056922U CN201620615137.2U CN201620615137U CN206056922U CN 206056922 U CN206056922 U CN 206056922U CN 201620615137 U CN201620615137 U CN 201620615137U CN 206056922 U CN206056922 U CN 206056922U
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Abstract
This utility model is applied to technical field of optical detection, there is provided a kind of device of light travels efficiency, including：One shading piece, with the socket that the light entrance and/or light exit with testee coordinates, the caliber size scalable of the socket；One luminance detection part, including a substrate, and located at some light sensors of the substrate, each light sensor is used to measure the brightness value on affiliated area, and sends data processing unit to；One data processing unit, for processing the brightness value for receiving, obtains light distribution and luminous flux.Whereby, this utility model simple structure, can more accurately measure light transmissioning efficiency.
Description
Technical field
This utility model is related to technical field of optical detection, more particularly to a kind of device of light travels efficiency.
Background technology
Light transmissioning efficiency is the important parameter for weighing optical transmission apparatus performance.The calculating of existing light transmissioning efficiency is to pass through
Entrance and exit luminous flux is detected respectively, calculates the efficiency of transmission of light, and the detection of luminous flux mainly there are two kinds of sides at present
Method：
1) detected by integrating sphere or distributed photometer.
2) multiple spot brightness value is measured using illumination meter, luminous flux is obtained by irradiated area.
In the first scheme, there is light suitable for 4 π illuminating sources, the i.e. total space using integrating sphere measurement, such as：It is incandescent
Lamp, electricity-saving lamp, so daylight lamp spot, the accuracy of test are high.If test object is 2 π illuminating sources, such as：Street lamp, Down lamp,
The light fixtures such as Ceiling light, shot-light, when inside integrating sphere, due to the bulky problem of light fixture itself, and the problem that width of light beam is narrow,
Cause test luminous flux error can be than larger.Distributed photometer is, using the angle for constantly changing test, to complete 4 π
The total space test of light source or 2 π light fixtures, the error that this kind of method does not have light fixture itself to affect test environment, so theoretical
The accuracy of upper test is higher than integrating sphere measurement method, and this kind of method of testing testing time is longer, and ordinary circumstance is not less than 30
Minute, it is impossible to it is applied to the measurement of unstable light source.And two kinds of equipment volume are larger, it is difficult to survey to installing light source
Examination.Because the illumination of light source irradiation is simultaneously uneven, and light spot shape mostly is abnormity, causes illumination and area accurately cannot survey
Amount, so second scheme can only do rough test, measuring accuracy is poor
In summary, prior art there will naturally be inconvenience and defect in actual use, it is therefore necessary to being improved.
Utility model content
For above-mentioned defect, the purpose of this utility model is to provide a kind of device of light travels efficiency, and which can
More accurately to measure light transmissioning efficiency.
To achieve these goals, this utility model provides a kind of device of light travels efficiency, including：
One shading piece, with the socket that the light entrance and/or light exit with testee coordinates, the bore of the socket
Size scalable；
One luminance detection part, including a substrate, and located at some light sensors of the substrate, each light sensor
For measuring the brightness value on affiliated area, and send data processing unit to；
One data processing unit, for processing the brightness value for receiving, obtains light distribution and luminous flux.
According to the device of light travels efficiency of the present utility model, the light sensor is linear photosensor sensor,
The substrate is pcb board, and the light sensor presses matrix form close-packed arrays.
According to the device of light travels efficiency of the present utility model, the shading piece is fitted close with luminance detection part.
According to the device of light travels efficiency of the present utility model, each light sensor connects a metal-oxide
The drain electrode of semiconductor field effect transistor, and some Metal-Oxide Semiconductor field-effect transistors grid connect a string
And conversion chip, the source electrode of the Metal-Oxide Semiconductor field-effect transistor is connected with difference amplifier in turn and AD turns
Parallel operation.
According to the device of light travels efficiency of the present utility model, arrange between the luminance detection part and testee
Attenuator.
By arranging a shading piece, which has what the light entrance with testee and/or light exit coordinated to this utility model
Socket, the caliber size scalable of the socket so that shading piece can be very good to match various testees, and reduce
Veiling glare is mixed into.Brightness value is detected additionally by a luminance detection part, which includes a substrate, and located at some light of the substrate
Dependent sensor, each light sensor are used to measure the brightness value on affiliated area, and send data processing unit to；Measured object
Body is coordinated with shading piece and the luminance detection part simultaneously.Finally by a data processing unit, the brightness value for receiving is processed, obtained
Light distribution and luminous flux, easily realize the measurement of light transmissioning efficiency whereby.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram of light travels efficiency of the present utility model；
Fig. 2A is luminance detection part overlooking the structure diagram of the present utility model；
Fig. 2 B are luminance detection part dimensional structure diagrams of the present utility model；
Fig. 3 is local attachment structure schematic diagram of the present utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain
This utility model, is not used to limit this utility model.
Referring to Fig. 1, this utility model shows the structure that the device of light travels efficiency is engaged with testee 50,
Wherein, the device of light travels efficiency includes：
One shading piece 10, with the socket that the light entrance and/or light exit with testee 50 coordinates, the socket
Caliber size scalable.
One luminance detection part 20, including a substrate 21, and located at some light sensors 22 of the substrate 21, each light
Dependent sensor 22 is used to measure the brightness value on affiliated area, and sends data processing unit 30 to.Light sensor 22 is concrete
Can be using sensor devices such as photoconductive resistance, light sensitive diode, phototriode, photosensitive IC and silicon cells.
One data processing unit 30, for processing the brightness value for receiving, obtains light distribution and luminous flux.Specifically, number
Light inlet and light-emitting window detection numerical value are carried out into computing according to processing unit 30, efficiency of transmission of the light in object is drawn.
In application of the present utility model, shading piece 10 is typically fitted close with luminance detection part 20 by bottom, in case
Only veiling glare is infiltrated in bottom affects measurement.The sizable socket in top of shading piece 10, for realizing and testee 50
Light inlet or light-emitting window are fitted close, whereby so that the light sensor 22 of luminance detection part 20 is only capable of detecting testee 50
Entrance light or outlet light, it is to avoid the impact of veiling glare.
Preferably, combine Fig. 2A and Fig. 2 B, light sensor 22 is linear photosensor sensor, and substrate 21 is pcb board, and light
Dependent sensor 22 presses matrix form close-packed arrays, and the light sensor area of each light sensor 22 is identical, and as known quantity.
Meanwhile, the photosensitive of each light sensor 22 faces up.Because it is densely arranged, and the face of known single linear photosensor sensor 22
Product, measures equivalent to light-emitting window is divided into countless small points, can fine perceive each upper non-uniform Distribution of point
Light, each linear photosensor sensor 22 measures the brightness value on affiliated area, sends data processing unit 40 to.Illumination
The photosensitive area of detection means 20 is more than 50 light-emitting window area of object to be detected.
In actual measurement, the light entrance of testee 50 or outlet are in close contact with each light sensor 22 as far as possible, with
Ensure the accuracy of measurement.Certainly, it is contemplated that the measurement range of light sensor 22, it may be necessary in testee 50 and photograph
Attenuator is set between degree detection piece 20, to meet different measurement demands.
It is in view of luminance detection part 20 by the linear photosensor sensor 22 of reduced size according to matrix form close-packed arrays, tested
50 general relative area of object is larger, and number of sensors used is more.Based on this, with reference to Fig. 3, each light sensor connection one
The drain electrode of Metal-Oxide Semiconductor field-effect transistor, and the grid of some Metal-Oxide Semiconductor field-effect transistors
Pole connects a string and conversion chip (74HC595), and the source electrode of the Metal-Oxide Semiconductor field-effect transistor is sequentially connected
There are difference amplifier and a/d converter.
This utility model uses MOSFET (Metal-Oxide Semiconductor field-effect transistor) to switch as probe power
Device, is controlled plus 74HC595 chips by dot matrix control mode, open-minded one by one per road sensor signal, optical signal
Difference amplifier and a/d converter through 30 located at data processing unit is processed, and measures the light intensity value of each point, according to
Matrix position draws out the surface of intensity distribution.
Data processing unit 30 carries out calculation process to linear photosensor sensing data, show that total light of measured light leads to
Amount.Computational methods are as follows：
In assuming illumination testing apparatus, single light sensor area is Si；The light that single linear photosensor sensor 22 is obtained
Electric current is Ii；The light sensor quantity for entering light light is Ain；22 quantity of light sensor for going out light light is Aout；Enter light light
Flux is Φin；Go out light luminous flux for Φout；It is I that test obtains being input into photoelectric current total amountin；Test obtains output light electric current total amount
For Iout, coefficient of correspondence of the wherein k for the faradic current and intensity of illumination of light sensor 22.
And then obtain the computing formula of efficiency and be
η=Φout/Φin=Iout/Iin
I.e. efficiency of transmission is equivalent to the ratio of light-emitting window and light inlet total illumination.
Data processing unit of the present utility model 30 includes human-computer interaction interface, can be detected by human-computer interaction interface input
Instruction, shows testing result.
This utility model is less relative to integrating sphere and distributed photometer volume, and cost is lower.Examine in light transmissioning efficiency
During survey, can be more simple, fast on measured light, it can also pacify that measured light can both be single product
Dress product.The light source of measurable larger light-emitting window area and special-shaped light-emitting window.The light source to Non uniform light is can accurately measure, and
Draw the surface of intensity distribution.
In sum, by arranging a shading piece, there is this utility model light entrance and/or light with testee to go out for which
The socket that mouth coordinates, the caliber size scalable of the socket so that shading piece can be very good to match various measured objects
Body, and reduce veiling glare and be mixed into.Brightness value is detected additionally by a luminance detection part, which includes a substrate, and is located at the base
Some light sensors of plate, each light sensor are used to measure the brightness value on affiliated area, and send data processing to
Unit；Testee is coordinated with shading piece and the luminance detection part simultaneously.Finally by a data processing unit, process what is received
Brightness value, obtains light distribution and luminous flux, easily realizes the measurement of light transmissioning efficiency whereby.
Certainly, this utility model can also have other various embodiments, spiritual and its essence without departing substantially from this utility model
In the case of, those of ordinary skill in the art work as and can make various corresponding changes and deformation, but these according to this utility model
Corresponding change and deformation should all belong to the scope of the claims appended by this utility model.
Claims (5)
1. a kind of device of light travels efficiency, it is characterised in that include：
One shading piece, with the socket that the light entrance and/or light exit with testee coordinates, the caliber size of the socket
Scalable；
One luminance detection part, including a substrate, and located at some light sensors of the substrate, each light sensor is used for
Brightness value on area belonging to measurement, and send data processing unit to；
One data processing unit, for processing the brightness value for receiving, obtains light distribution and luminous flux.
2. the device of light travels efficiency according to claim 1, it is characterised in that the light sensor is linear
Light sensor, the substrate are pcb board, and the light sensor presses matrix form close-packed arrays.
3. the device of light travels efficiency according to claim 1, it is characterised in that the shading piece and luminance detection
Part is fitted close.
4. the device of light travels efficiency according to claim 1, it is characterised in that each light sensor connection one
The drain electrode of Metal-Oxide Semiconductor field-effect transistor, and the grid of some Metal-Oxide Semiconductor field-effect transistors
Pole connects a string and conversion chip, and the source electrode of the Metal-Oxide Semiconductor field-effect transistor is connected with difference in turn and puts
Big device and a/d converter.
5. the device of light travels efficiency according to claim 1, it is characterised in that the luminance detection part with it is tested
Attenuator is set between object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615137.2U CN206056922U (en) | 2016-06-21 | 2016-06-21 | The device of light travels efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615137.2U CN206056922U (en) | 2016-06-21 | 2016-06-21 | The device of light travels efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206056922U true CN206056922U (en) | 2017-03-29 |
Family
ID=58371819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620615137.2U Active CN206056922U (en) | 2016-06-21 | 2016-06-21 | The device of light travels efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441811A (en) * | 2016-06-21 | 2017-02-22 | 烟台昕诺吉太阳能技术有限公司 | Device and method for detecting optical transmission efficiency |
-
2016
- 2016-06-21 CN CN201620615137.2U patent/CN206056922U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441811A (en) * | 2016-06-21 | 2017-02-22 | 烟台昕诺吉太阳能技术有限公司 | Device and method for detecting optical transmission efficiency |
| CN106441811B (en) * | 2016-06-21 | 2024-03-22 | 烟台昕诺吉太阳能技术有限公司 | Device and method for detecting light transmission efficiency |
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