CN205283885U - Multichannel LED luminance uniformity adjusting device - Google Patents
Multichannel LED luminance uniformity adjusting device Download PDFInfo
- Publication number
- CN205283885U CN205283885U CN201521117363.XU CN201521117363U CN205283885U CN 205283885 U CN205283885 U CN 205283885U CN 201521117363 U CN201521117363 U CN 201521117363U CN 205283885 U CN205283885 U CN 205283885U
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- CN
- China
- Prior art keywords
- led
- controller
- test equipment
- luminance
- led group
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a multichannel LED luminance uniformity adjusting device, including LED banks, PWM pulse width modulator, controller, timing platform, luminance test equipment, the quantity of LED banks is two sets of for at least, the LED banks is parallelly connected is in the same place, has two LED lamps to establish ties on every LED banks and forms, and the output port at the controller is connected to every LED banks, and the input port difference connection director of controller, PWM pulse width modulator, controller connect the timing platform, timing platform connection luminance test equipment, luminance test equipment aims at the LED banks, the utility model discloses a controller control light brightness has promoted light brightness's uniformity, has reduced the difference between the luminance each other, has very big remaining in the LED lectotype, can not increase the cost of hardware, also can not the increase of production, the technology complexity of test, and convenient and practical.
Description
Technical field
The invention belongs to car bulb commissioning device technical field, be specifically related to a kind of LED multi-path brightness uniformity adjusting apparatus.
Background technology
In the design of automobile electronics, majority of case is the brightness by the rigid control light of hardware, as shown in Figure 2, but owing to being difficult to keep highly identical on circuit components, especially LED lamplight brightness, even if under same current drive condition, brightness is likely to there is larger difference, and LED is more susceptible to a batch Different Effects of dispatching from the factory occur, and LED luminance also there will be difference, not easily meets the demand of client. If only improved from hardware, it is necessary to selecting the LED of the higher circuit components of precision and same batch, do so can cause production to carry out in high volume, the cost of product is increasing, and profit declines, and can not solve the deviation of brightness at all.
Therefore, those skilled in the art needs to have developed a kind of new departure, is used for adjusting light difference problem, reduces the product requirement to hardware selection, the qualification rate of the product simultaneously improved.
Summary of the invention
For solving the problems referred to above, the invention discloses a kind of LED multi-path brightness uniformity adjusting apparatus, adopt controller to control lamplight brightness, reduce the difference each other between brightness, do not increase the cost of hardware, without increasing the process complexity producing, testing, convenient and practical.
For reaching above-mentioned purpose, technical scheme is as follows:
A kind of LED multi-path brightness uniformity adjusting apparatus, it is characterized in that: include LED group, PWM pulse width modulator, controller, adjustment platform, luminance test equipment, the quantity of described LED group is at least two groups, described LED group is connected in parallel, each LED group there are two LED be in series, each LED group is connected to the output port of controller, the input port of controller connects controller, PWM pulse width modulator respectively, controller connects adjustment platform, adjustment platform connects luminance test equipment, described luminance test equipment alignment LED group.
As a modification of the present invention, the quantity of described LED group is 2-5 group.
As a modification of the present invention, the quantity of described LED group is three groups.
As a modification of the present invention, described luminance test equipment is FeasaLED tester.
The invention has the beneficial effects as follows:
A kind of LED multi-path brightness uniformity adjusting apparatus of the present invention, controller is adopted to control lamplight brightness, improve the concordance of lamplight brightness, decrease the difference each other between brightness, LED type selecting just has very big remaining, the cost of hardware will not be increased, without increasing the process complexity producing, testing, convenient and practical.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the schematic diagram of original technology.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is merely to illustrate the present invention rather than restriction the scope of the present invention.
As shown in Figure 1, a kind of LED multi-path brightness uniformity adjusting apparatus of the present invention, including LED group, PWM pulse width modulator, controller, adjustment platform, luminance test equipment, the quantity of described LED group is at least two groups, described LED group is connected in parallel, each LED group there are two LED be in series, each LED group is connected to the output port of controller, the input port of controller connects controller respectively, PWM pulse width modulator, controller connects adjustment platform, adjustment platform connects luminance test equipment, described luminance test equipment alignment LED group.
During use, PWM pulse width modulator is connected to the input of controller, and each LED group connectivity port is controller waveform delivery outlet, the PWM drive waveforms of output different duty, indirectly controls the voltage of light, reaches to adjust the needs of lamplight brightness.
When adjusting product light concordance, luminance test equipment Inspection LED group brightness, receipt is fed back to adjustment platform, adjustment platform send luminance parameter, controller through computed in software export corresponding brightness PWM drive waveforms, until adjustment to normal brightness, this luminance parameter is then saved in storage device by controller, when equipment powers on again, setup parameter is just used to calculate the dutycycle of output PWM ripple, thus every paths of LEDs lamp brightness just can reach normal brightness.
The quantity of LED group of the present invention is three groups.
Luminance test equipment of the present invention is FeasaLED tester.
A kind of LED multi-path brightness uniformity adjusting apparatus of the present invention, controller is adopted to control lamplight brightness, improve the concordance of lamplight brightness, by the brightness adjustment that granularity is less, it is possible to make brightness to reach deviation very little, decrease the difference each other between brightness, LED type selecting just has very big remaining, the cost of hardware will not be increased, without increasing the process complexity producing, testing, convenient and practical.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also includes the technical scheme being made up of above technical characteristic combination in any.
Claims (4)
1. a LED multi-path brightness uniformity adjusting apparatus, it is characterized in that: include LED group, PWM pulse width modulator, controller, adjustment platform, luminance test equipment, the quantity of described LED group is at least two groups, described LED group is connected in parallel, each LED group there are two LED be in series, each LED group is connected to the output port of controller, the input port of controller connects controller, PWM pulse width modulator respectively, controller connects adjustment platform, adjustment platform connects luminance test equipment, described luminance test equipment alignment LED group.
2. a kind of LED multi-path brightness uniformity adjusting apparatus according to claim 1, it is characterised in that: the quantity of described LED group is 2-5 group.
3. a kind of LED multi-path brightness uniformity adjusting apparatus according to claim 2, it is characterised in that: the quantity of described LED group is three groups.
4. a kind of LED multi-path brightness uniformity adjusting apparatus according to claim 1, it is characterised in that: described luminance test equipment is FeasaLED tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117363.XU CN205283885U (en) | 2015-12-30 | 2015-12-30 | Multichannel LED luminance uniformity adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117363.XU CN205283885U (en) | 2015-12-30 | 2015-12-30 | Multichannel LED luminance uniformity adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205283885U true CN205283885U (en) | 2016-06-01 |
Family
ID=56068406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521117363.XU Expired - Fee Related CN205283885U (en) | 2015-12-30 | 2015-12-30 | Multichannel LED luminance uniformity adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205283885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041339A (en) * | 2018-08-01 | 2018-12-18 | 广州市浩洋电子股份有限公司 | A kind of illumination uniformity adjusting method of LED multi-path |
| CN110244212A (en) * | 2019-07-15 | 2019-09-17 | 云谷（固安）科技有限公司 | Organic light emitting diode device life-span test system and method, light measuring device |
-
2015
- 2015-12-30 CN CN201521117363.XU patent/CN205283885U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109041339A (en) * | 2018-08-01 | 2018-12-18 | 广州市浩洋电子股份有限公司 | A kind of illumination uniformity adjusting method of LED multi-path |
| CN109041339B (en) * | 2018-08-01 | 2019-11-08 | 广州市浩洋电子股份有限公司 | A kind of illumination uniformity adjusting method of LED multi-path |
| CN110244212A (en) * | 2019-07-15 | 2019-09-17 | 云谷（固安）科技有限公司 | Organic light emitting diode device life-span test system and method, light measuring device |
| CN110244212B (en) * | 2019-07-15 | 2021-11-19 | 云谷（固安）科技有限公司 | System and method for testing service life of organic light-emitting diode device and light measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20211230 |