CN102683337A - Integrated method of high-power light-emitting diode (LED) arrays - Google Patents
Integrated method of high-power light-emitting diode (LED) arrays Download PDFInfo
- Publication number
- CN102683337A CN102683337A CN2012101840568A CN201210184056A CN102683337A CN 102683337 A CN102683337 A CN 102683337A CN 2012101840568 A CN2012101840568 A CN 2012101840568A CN 201210184056 A CN201210184056 A CN 201210184056A CN 102683337 A CN102683337 A CN 102683337A
- Authority
- CN
- China
- Prior art keywords
- array
- led
- led array
- algorithm
- basic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an integrated method of high-power light-emitting diode (LED) arrays. The method comprises first achieving optical arrangement of LED array base modules through a value optimizing method, enabling the illuminance of the LED array base modules on illuminating surfaces to be uniformized, and enabling the LED array base modules to comprise base arrays formed respectively by 4 LEDs, 5 LEDs, 6 LEDs and 7 LEDs; then expanding the base array modules into a large-scale LED array; and finally continuously selecting a required number of LED subarrays in the large-scale LED array to serve as an applied array. The large-scale LED array is formed by more than 7 LEDs. The integrated method has the advantages that the LED array with a random number can be integrated by using the value optimizing method to optimize a few array base modules. The method is fast and simple, and automatic arrangement is achieved. In particular, when the number of the LEDs is very large, the integrated method has a very obvious advantage.
Description
Technical field
The present invention relates to a kind of integrated approach of high-power LED array, belong to the LED lighting technical field.
Background technology
Along with improving constantly of light efficiency, LED develops into a kind of novel light source gradually, and the various illuminations of extensive use are like street lamp, Tunnel Lamp, bulkhead lamp capable, room lighting and projection and display lighting.Therefore single LEDs in a lot of illumination application, need use the integrated led array module of plurality of LEDs because the luminous flux of output is limited.Therefore how designing a led array module, make it on objective plane, realize evenly illumination, is a very crucial problem.Previous technology is to the arrangement of led array, mainly is to calculate arranging of led array through the method for resolving, and solution procedure is complicated, and computational efficiency is low, and LED that can only the pairing approximation lambertian distribution carries out arrangement design.In the one Chinese patent application 201110366801.6, carry out Automatic Optimal through the program of using a computer and arrange the LED position, formed one, make it can on illuminated area, form uniform Illumination Distribution the led array module.This method is pretty good to the fewer array effect of a number, but the led array more to a number, when reaching tens like LED number, because the parameters optimization that relates to is more, it is very long that optimization time becomes, and common computer almost can't be realized.
Summary of the invention
The object of the invention provides a kind of high-power LED array integrated approach, and with a high-power LED array of plurality of LEDs fast integration module, this array module has realized the illumination homogenizing on objective plane.The method can realize arbitrary number, and the led array of light distribution is integrated arbitrarily, and it is integrated to arrange through computer program control realization Automatic Optimal, has strengthened the operability of commercial Application.
According to technical scheme provided by the invention; Said high-power LED array integrated approach; At first realize the optimal arrangement of led array basic module through the method for numerical optimization; Make these led array basic modules illumination homogenizing on illuminated area, said led array basic module comprises the basic array that is made up of respectively 4,5,6,7 LEDs; Then these basic array modules are extended to large-scale led array.
When expanding to large scale array by basic array, as a female array, female array is duplicated along all directions becomes new subarray then by basic array, shared limit between female array and the subarray.Then each new subarray being remake is that a female array continues expansion.The last array of the LED subarray of requirement of in said extensive led array, choosing continuously as an application.Described extensive led array is by constituting greater than 7 LED.
The method of said numerical optimization is meant optimizes the illuminance uniformity evaluation function; Said illuminance uniformity evaluation function is the variance of multiple spot illumination on the illuminated area; The illuminance uniformity evaluation function is the function about each LED position coordinates in the array, through optimizing the position of LED, realizes that illuminance uniformity objective appraisal functional value is minimum; Be that variance is minimum, promptly obtain the even distribution of illumination on the illuminated area.
Select optimized Algorithm that said illuminance uniformity evaluation function is optimized; Make the objective appraisal functional value less than the minimum value that requires; Just obtained the optimum position of each LED, said optimized Algorithm adopts random walk algorithm, particle cluster algorithm, ant group algorithm, simulated annealing, fish-swarm algorithm or fruit bat algorithm.Said random walk algorithm is the multiple target optimizing algorithm.
In the said process of choosing the LED subarray continuously, need preferentially to keep the LED in the subarray to be continuously and to be symmetrically distributed.
Advantage of the present invention is: the present invention optimizes the array module of several little numbers earlier as basic array, according to certain method these basic array is integrated into the LED module of a big number at last.Use numerical optimization to optimize the led array that the less several basic array modules of a number just can integrated any number.This method is quick, and simple and realization automation is arranged; Particularly when a number was very large, advantage was very obvious.
Description of drawings
Fig. 1 is implementing procedure figure of the present invention.
Fig. 2 (a) is the array of figure of evenly arranging with five LEDs illumination of the random walk method simulation of optimizing.
Fig. 2 (b) is the array of figure of evenly arranging with six LEDs illumination of the random walk method simulation of optimizing.
Fig. 2 (c) is the array of figure of evenly arranging with seven LEDs illumination of the random walk method simulation of optimizing.
Fig. 3 (a) is that five LEDs basic array unit move to form the sketch map of a large scale array by vector.
Fig. 3 (b) is that six LEDs basic array unit move to form the sketch map of a large scale array by vector.
Fig. 4 (a) is integrated of the integrated large scale array of five LEDs basic array of the embodiment of the invention.
Fig. 4 (b) is integrated of the integrated large scale array of six LEDs basic array of the embodiment of the invention.
Fig. 4 (c) is integrated of the integrated large scale array of seven LEDs basic array of the embodiment of the invention.
Fig. 5 selects 9 LEDs to arrange as the combination of subarray for circle on integrated of LED.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Thinking of the present invention is: carry out fewer purpose led array earlier and optimize the arrangement of, make its illumination homogenizing, optimize good array to these and call basic module (basic module has comprised, the array module that 4,5,6,7 LEDs constitute respectively).Optimize the arrangement of these basic modules, adopt random walk algorithm, particle cluster algorithm, ant group algorithm, simulated annealing, fish-swarm algorithm or fruit bat algorithm.Carry out these led array basic modules integrated on a large scale with computer then.In extensive integrated array the inside, can enclose the led array that selects required number and use as a subarrays.Select in the process of subarray at circle, keep the LED in the subarray to be continuously and to be symmetrically distributed that the led array integrating process is as shown in Figure 1 as far as possible.
As shown in Figure 1, the present invention utilizes the best of numerical optimization realization led array basic module to arrange, and the illuminance uniformity evaluation function that wherein adopts is the variance of multiple spot illumination on the illuminated area.When program running, through the position of each LED in the reasonably optimizing basic module, realize that illuminance uniformity objective appraisal functional value is minimum, promptly variance is minimum, promptly can obtain the even distribution of illumination on the illuminated area.Then these LED basic array modules are extended to large-scale array, in this large scale array, choose the array of the LED subarray of requirement more continuously as an application.Described extensive led array is by constituting greater than 7 LED.
Optimizing process makes illuminated area illuminance uniformity evaluation function value minimum exactly, and promptly each point illumination variance is minimum on the illuminated area, i.e. the process of uniformity raising.The practical implementation process of optimizing is following: select the reasonable optimizing algorithm (like the random walk algorithm; Particle cluster algorithm; Ant group algorithm; Fruit bat algorithm etc.) the objective appraisal function is optimized, makes objective appraisal function value, so just can obtain the optimum position of each LED less than the minimum value that requires.After the optimum position that obtains LED, the led array light source is arranged by calculating the acquisition position, at light simulation and analysis software, analyze based on monte carlo method, come the confirmatory experiment result.Analysis software Tracepro commonly used, ASAP, Lightools etc.
Below be example with the random walk algorithm, introduce the process that LED basic array module is optimized in random walk.The random walk algorithm is a kind of calculating of carrying out based on the interval uniform random number sequence of utilization [0,1], is highly suitable for the dealing with nonlinear optimization problem.Use the random walk algorithm to be optimized illuminance uniformity and need following step:
1 sets up evaluation function.
Evaluation function is to be used for judging the standard of target migration to certain position quality, is unique foundation of carrying out random walk, and evaluation function is exactly the evaluation function of illuminance uniformity.
2 object initializations.
The random walk algorithm need be chosen initial position (here corresponding to the LED initial position) to the target of required optimization; Say in principle; All can find the target function minimum value from any one initial position; But in order to reduce optimization time, preferably will select a suitable initial position, this initial position should be the maximum zone of desired Probability Distribution density in the migration scope.
3 are provided with the migration step-length.
For the target migration is provided with the migration step-length, the direction of each migration and distance are by the weights decision that produces at random.Selecting the principle of selecting suitable weights size and be will be in the exploration process of migration, has 1/3 to 1/2 exploration step to be accepted.
4 selection operations.
Selection operation is: obtain the initial value of an evaluation function behind the selected target initial value, every trip makes a move and produces a new functional value, and compares with last value, selects smaller value as current Function Optimization value.Migration finishes until migration one by one.
Selecting of 5 optimal values.
If in the iterations of regulation, all can not find more excellent value, think that then optimal solution is the center separating with current optimal, current step-length is in the ball of radius, at this moment step-length is reduced by half.Turn back to the initial value position, begin the walking of a new round again.
6 non-linear optimizing.
Behind the certain number of times of random walk algorithm migration; With resultant result is initial value; Carry out local optimal searching; And the local optimum that finds optimizing to the last finds the desired position of target function as new initial value and continue migration, just found the corresponding LED position coordinates of Evaluation for Uniformity function minimum.(b) be respectively the array of figure of evenly arranging shown in (c) like Fig. 2 (a) with five, six of the random walk method simulation of optimizing, seven LEDs illumination.
If adopt other algorithm; The implementation process of its implementation process and random walk algorithm is also similar; Corresponding illumination homogenizing evaluation function with the objective appraisal function of every kind of algorithm; The variable of LED position coordinates as the objective appraisal function, through the enforcement of algorithm, the position coordinates of optimization variable obtains objective appraisal minimum of a function value.
Introduce the integrated method of led array that realizes below.
Integrated that selects LED to arrange belongs to the plane as coordinate surface, sets up plane coordinate system.With the female array of LED basic array (like 5 arrays) as integrated, the center of female array is arranged on the origin of coordinates.In LED arranges the plane, female array will be duplicated according to certain orientation, guarantee the new array and the shared limit of female array that produce.Then each new subarray being remake is that a female array continues expansion.Shown in Figure 3 is a sketch map that is expanded to large scale array by basic array.Fig. 3 (a) is become the sketch map of a large scale array by five basic array unit extensions; Fig. 3 (b) is become the sketch map of a large scale array by six basic array unit extensions; Fig. 3 (c) is become the sketch map of a large scale array by seven basic array unit extensions.Fig. 4 (a) (b), (c) is respectively the extensive led array that is made up of five, six, seven LEDs basic array.Fig. 5 has illustrated how from extensive led array, to choose the Applying Array of any number.
Claims (7)
1. high-power LED array integrated approach; It is characterized in that: the optimal arrangement that realizes the led array basic module through the method for numerical optimization; Make the illumination homogenizing of these led array basic modules, said led array basic module comprises the basic array that is made up of respectively 4,5,6,7 LEDs; Then these basic array modules are extended to large-scale led array, in said extensive led array, choose the array of the LED subarray of requirement more continuously as an application.
2. high-power LED array integrated approach according to claim 1 is characterized in that, described extensive led array is by constituting greater than 7 LED.
3. high-power LED array integrated approach according to claim 1; It is characterized in that the method for said numerical optimization is meant optimizes the illuminance uniformity evaluation function, said illuminance uniformity evaluation function is the variance of multiple spot illumination on the illuminated area; Through optimizing the position of LED; Realize that illuminance uniformity objective appraisal functional value is minimum, promptly variance is minimum, promptly obtains the even distribution of illumination on the illuminated area.
4. high-power LED array integrated approach according to claim 3; It is characterized in that; Select optimized Algorithm that said illuminance uniformity evaluation function is optimized; Make objective appraisal function value less than the minimum value that requires, just obtained the optimum position of each LED, said optimized Algorithm adopts random walk algorithm, particle cluster algorithm, ant group algorithm, simulated annealing, fish-swarm algorithm or fruit bat algorithm.
5. high-power LED array integrated approach according to claim 4 is characterized in that, said random walk algorithm is the multiple target optimizing algorithm.
6. high-power LED array integrated approach according to claim 1 is characterized in that, said extensive led array is to be made up of the uniform led array basic module of illumination; When expanding to large scale array by basic array; By basic array as a female array; Then female array being duplicated along all directions becomes new subarray, shared limit between female array and the subarray, and then each new subarray being remake is that a female array continues expansion.
7. high-power LED array integrated approach according to claim 1 is characterized in that, in the said process of choosing the LED subarray continuously, needs preferentially to keep the LED in the subarray to be continuously and to be symmetrically distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101840568A CN102683337A (en) | 2012-06-05 | 2012-06-05 | Integrated method of high-power light-emitting diode (LED) arrays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101840568A CN102683337A (en) | 2012-06-05 | 2012-06-05 | Integrated method of high-power light-emitting diode (LED) arrays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102683337A true CN102683337A (en) | 2012-09-19 |
Family
ID=46815029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101840568A Pending CN102683337A (en) | 2012-06-05 | 2012-06-05 | Integrated method of high-power light-emitting diode (LED) arrays |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102683337A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813158A (en) * | 2017-02-09 | 2017-06-09 | 上海同岩土木工程科技股份有限公司 | A kind of infrared light compensating lamp for vcehicular tunnel quick detection |
| CN107026392A (en) * | 2017-05-15 | 2017-08-08 | 深圳奥比中光科技有限公司 | Vcsel array light source |
| CN107039885A (en) * | 2017-05-04 | 2017-08-11 | 深圳奥比中光科技有限公司 | The laser array being imaged applied to 3D |
| CN110572209A (en) * | 2019-09-30 | 2019-12-13 | 山东建筑大学 | Indoor visible light communication LED optimal layout method and system |
| CN112347597A (en) * | 2020-11-13 | 2021-02-09 | 西安工程大学 | Method for improving LED illumination uniformity based on improved particle swarm optimization |
| CN113194222A (en) * | 2021-03-18 | 2021-07-30 | 优尼特克斯公司 | Combined imaging device |
| CN113916906A (en) * | 2021-09-03 | 2022-01-11 | 江苏理工学院 | LED light source illumination optimization method of visual detection system and used experimental equipment |
| CN115299262A (en) * | 2022-08-12 | 2022-11-08 | 湖北工业大学 | High-uniformity intelligent plant light supplementing method |
| CN112347597B (en) * | 2020-11-13 | 2024-04-05 | 西安工程大学 | Method for improving LED illumination uniformity based on improved particle swarm algorithm |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307295A (en) * | 1991-01-14 | 1994-04-26 | Vari-Lite, Inc. | Creating and controlling lighting designs |
| CN102254052A (en) * | 2010-05-17 | 2011-11-23 | 深圳市摩西尔电子有限公司 | Computer-aided design method and device of Light-Emitting Diode (LED) display module |
-
2012
- 2012-06-05 CN CN2012101840568A patent/CN102683337A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5307295A (en) * | 1991-01-14 | 1994-04-26 | Vari-Lite, Inc. | Creating and controlling lighting designs |
| CN102254052A (en) * | 2010-05-17 | 2011-11-23 | 深圳市摩西尔电子有限公司 | Computer-aided design method and device of Light-Emitting Diode (LED) display module |
Non-Patent Citations (1)
| Title |
|---|
| SUNIL KUMAR KOPPARAPU: "Lighting design for machine vision application", 《 IMAGE AND VISION COMPUTING》, vol. 24, no. 7, 1 July 2006 (2006-07-01), pages 720 - 726 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813158A (en) * | 2017-02-09 | 2017-06-09 | 上海同岩土木工程科技股份有限公司 | A kind of infrared light compensating lamp for vcehicular tunnel quick detection |
| CN107039885A (en) * | 2017-05-04 | 2017-08-11 | 深圳奥比中光科技有限公司 | The laser array being imaged applied to 3D |
| CN107026392A (en) * | 2017-05-15 | 2017-08-08 | 深圳奥比中光科技有限公司 | Vcsel array light source |
| US10958893B2 (en) | 2017-05-15 | 2021-03-23 | Orbbec Inc. | VCSEL array light source |
| CN107026392B (en) * | 2017-05-15 | 2022-12-09 | 奥比中光科技集团股份有限公司 | VCSEL array light source |
| CN110572209A (en) * | 2019-09-30 | 2019-12-13 | 山东建筑大学 | Indoor visible light communication LED optimal layout method and system |
| CN112347597A (en) * | 2020-11-13 | 2021-02-09 | 西安工程大学 | Method for improving LED illumination uniformity based on improved particle swarm optimization |
| CN112347597B (en) * | 2020-11-13 | 2024-04-05 | 西安工程大学 | Method for improving LED illumination uniformity based on improved particle swarm algorithm |
| CN113194222A (en) * | 2021-03-18 | 2021-07-30 | 优尼特克斯公司 | Combined imaging device |
| CN113916906A (en) * | 2021-09-03 | 2022-01-11 | 江苏理工学院 | LED light source illumination optimization method of visual detection system and used experimental equipment |
| CN113916906B (en) * | 2021-09-03 | 2024-01-09 | 江苏理工学院 | LED light source illumination optimization method of visual detection system and experimental equipment used by method |
| CN115299262A (en) * | 2022-08-12 | 2022-11-08 | 湖北工业大学 | High-uniformity intelligent plant light supplementing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102683337A (en) | Integrated method of high-power light-emitting diode (LED) arrays | |
| CN201363590Y (en) | Large-power LED light source with saturated and gentle light and large-power LED illumination lamp using same | |
| CN105282939A (en) | Energy saving illumination control method and system | |
| CN102496063A (en) | Illumination uniformization method for high-power LED (light-emitting diode) array | |
| CN101424384A (en) | Light shield and illuminating apparatus employing the light shield | |
| CN103234173B (en) | Design method for high-diffuse-reflection-rate free-form surface for achieving even-illumination | |
| Ji et al. | Lighting design of underground parking with tubular daylighting devices and LEDs | |
| CN103470973A (en) | Illuminating apparatus and method for improving illumination uniformity | |
| CN104879711A (en) | Design method of double-free-form-surface LED (light emitting diode) uniform-light lens based on cubic spline | |
| CN103020386B (en) | Novel LED (Light Emitting Diode) optical design feedback optimizing method | |
| KR101609643B1 (en) | Color temperature and illumination condition control system using remote control | |
| CN104093251A (en) | Landscape lamp application method based on smart bulbs | |
| CN107750071A (en) | A kind of light modulation processing system of LED lamp | |
| CN206582554U (en) | The LED of adjustable luminous intensity distribution | |
| CN202773650U (en) | Tissue culture device for seedlings of dendrobium officinale | |
| CN102788281B (en) | Secondary optical element used for light-emitting diode (LED) illumination | |
| CN204114637U (en) | A kind of light source mixed light system of LED solar simulator | |
| CN201561308U (en) | High-power light-emitting diode light source | |
| CN202691901U (en) | Free-form surface lens for LED (Light-Emitting Diode) street lamp | |
| KR20120008330A (en) | Led lighting system and method | |
| CN102954376B (en) | LED (Light-emitting Diode) device matched with lens or light bulb and LED light arrangement method | |
| Chen et al. | Freeform lens design for LED illumination with high uniformity and efficiency | |
| Dragomir et al. | Irradiance model and simulation of a lighting LED system | |
| CN104075236A (en) | Light distribution system and lighting device provided with same | |
| Sun et al. | Sunlight and LED hybrid illumination in indoor lighting design |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120919 |