CN205157166U - LED luminance detection and calibration device - Google Patents
LED luminance detection and calibration device Download PDFInfo
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- CN205157166U CN205157166U CN201520864566.9U CN201520864566U CN205157166U CN 205157166 U CN205157166 U CN 205157166U CN 201520864566 U CN201520864566 U CN 201520864566U CN 205157166 U CN205157166 U CN 205157166U
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Abstract
The utility model discloses a LED luminance detection and calibration device, its major structure include a tool and industrial computer, and the tool includes an airtight darkroom and a DUT anchor clamps case, be provided with the industry camera in the airtight darkroom, lead to unthreaded hole, telecentric mirror head and slip table, DUT anchor clamps incasement is provided with the DUT anchor clamps, LED is connected through a PWM regulating unit to the industrial computer, and the industrial computer still links to each other with the industry camera. The DUT anchor clamps pin waits to calibrate LED, and LED light passes to the industry camera through leading to the unthreaded hole, and the industry camera is shot to LED to on transmitting the industrial computer to, the industrial computer carries out the RGB analysis, calculates LED luminous intensity, and accomplish LED luminance and detect, and through industrial computer control PWM regulating unit, adjustment duty cycle, the luminance of calibration LED. The utility model provides a LED luminance detection and calibration device realizes detecting and the calibration LED luminance to have that the function is perfect, advantage such as simple structure and price / performance ratio height.
Description
Technical field
The utility model relates to photoelectric field, is specially a kind of LED luminance testing calibration device.
Background technology
Consumer-elcetronics devices is general all with LED light or flashlamp, and the brightness of lamp is strong and weak and show the part that uniformity coefficient difference is also Consumer's Experience, or even product design pith.
Traditional eye-observation, although LED luminance calibration can be realized, can not robotization, consistance is poor, wasting manpower and material resources; Utilize spectrometer to test, although LED luminance testing calibration precision is high, and can robotization be realized, because equipment price is expensive and maintenance cost is high, and fail to be widely used.
In sum, provide a kind of structure simple, and the device of LED luminance testing calibration function can be realized, be still current industry facing challenges.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of LED luminance testing calibration device, by utilizing industrial camera, telecentric lens and industrial computer to realize calculating to LED luminance monitoring and testing, and there is the simple and cost performance advantages of higher of perfect in shape and function, structure.
The utility model solves the technical scheme that its technical matters adopts: a kind of LED luminance testing calibration device, it is characterized in that: its agent structure is a tool and the industrial computer being arranged on tool outside, described tool comprises an airtight darkroom and a DUT Fixture box, industrial camera is provided with in airtight darkroom, airtight darkroom sidewall is provided with a light hole, DUT fixture is provided with in described DUT Fixture box, DUT fixture locks LED to be calibrated, the light of LED is transferred to industrial camera by light hole, and described industrial computer is connected with LED to be calibrated with industrial camera respectively.
Further, a telecentric lens is also provided with between described industrial camera and LED to be calibrated.
Further, described industrial computer is connected with LED to be calibrated by a PWM regulon.
Further, described industrial camera and telecentric lens are arranged on the adjustable slide unit of three-dimensional.
Further, the process software that has RGB image analysis function is provided with in described industrial computer.
Further, be connected by USB line between described industrial camera with described industrial computer.
The beneficial effect that the utility model brings has:
A kind of LED luminance testing calibration device, utilizes industrial camera, telecentric lens and industrial computer, realizes LED luminance monitoring and testing, and has the simple and cost performance advantages of higher of perfect in shape and function, structure.
Accompanying drawing explanation
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail,
Accompanying drawing 1 is cut-away view of the present utility model;
Accompanying drawing 2 is external structures of the present utility model;
Accompanying drawing 3 is connection diagrams of industrial computer of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details:
With reference to accompanying drawing 1 and accompanying drawing 3, the utility model is a kind of LED luminance testing calibration device, and agent structure is a tool and an industrial computer 3; With reference to accompanying drawing 2, tool of the present utility model comprises airtight darkroom 1 and DUT Fixture box 2.
Tool is divided into two parts: airtight darkroom 1 and DUT Fixture box 2, the slide unit 14 that industrial camera 11, light hole 12, telecentric lens 13 and XYZ three-dimensional are adjustable is provided with in airtight darkroom 1, telecentric lens 13 can realize the effect correcting industrial camera 11 camera lens parallax, it can, in certain object distance range, make the Nonlinear magnify multiplying power obtained change; Industrial camera 11 and telecentric lens 13 are arranged on the adjustable slide unit 14 of XYZ three-dimensional, by slip slide unit 14, can finely tune the position of industrial camera 11, focus; DUT fixture 21 is provided with in DUT Fixture box 2.On the wall of light hole 12 between airtight darkroom 1 and DUT Fixture box.Industrial computer 3 controls LED luminance to be calibrated by a PWM regulon 31.
The course of work of the present utility model mainly comprises the steps: that DUT fixture 21 pins LED to be calibrated, the light of LED is transferred to industrial camera 11 camera lens by the light hole 12 on the wall of airtight darkroom 1, control industrial camera 11 by industrial computer 3 to take pictures to emitting led, and picture transmission on industrial computer 3; Then, the processor on industrial computer 3 carries out RGB analysis by software, calculates LED luminous intensity, completes LED luminance and detects.Be connected by USB line between industrial camera 11 with industrial computer 3.After completing LED luminance detection, industrial computer 3 can judge that whether the brightness of LED to be calibrated is desirable, if undesirable, then control PWM regulon 31, regulates the dutycycle of PWM, thus realizes object LED luminance being adjusted to perfect condition.
More than that better enforcement of the present utility model is illustrated, but the utility model is created and is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (6)
1. a LED luminance testing calibration device, it is characterized in that: its agent structure is a tool and the industrial computer (3) being arranged on tool outside, described tool comprises an airtight darkroom (1) and a DUT Fixture box (2), industrial camera (11) is provided with in airtight darkroom (1), airtight darkroom (1) sidewall is provided with a light hole (12), DUT fixture (21) is provided with in described DUT Fixture box (2), DUT fixture (21) locks LED to be calibrated, the light of LED is transferred to industrial camera (11) by light hole (12), described industrial computer (3) is connected with LED to be calibrated with industrial camera (11) respectively.
2. a kind of LED luminance testing calibration device according to claim 1, is characterized in that: be also provided with a telecentric lens (13) between described industrial camera (11) and LED to be calibrated.
3. a kind of LED luminance testing calibration device according to claim 1, is characterized in that: described industrial computer (3) is connected with LED to be calibrated by a PWM regulon (31).
4. a kind of LED luminance testing calibration device according to claim 2, is characterized in that: described industrial camera (11) and telecentric lens (13) are arranged on the adjustable slide unit (14) of three-dimensional.
5. a kind of LED luminance testing calibration device according to claim 1, is characterized in that: be provided with the process software that has RGB image analysis function in described industrial computer (3).
6. a kind of LED luminance testing calibration device according to claim 1, be is characterized in that: be connected by USB line between described industrial camera (11) with described industrial computer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864566.9U CN205157166U (en) | 2015-10-30 | 2015-10-30 | LED luminance detection and calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864566.9U CN205157166U (en) | 2015-10-30 | 2015-10-30 | LED luminance detection and calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205157166U true CN205157166U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520864566.9U Active CN205157166U (en) | 2015-10-30 | 2015-10-30 | LED luminance detection and calibration device |
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| CN (1) | CN205157166U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973571A (en) * | 2016-04-27 | 2016-09-28 | 厦门大学 | CCD-based LED chip microscopic surface brightness measuring method |
| CN106879249A (en) * | 2017-04-26 | 2017-06-20 | 航天科技控股集团股份有限公司 | Printed board assembly automatic checkout equipment |
| CN111044261A (en) * | 2019-12-27 | 2020-04-21 | 深圳盛达同泽科技有限公司 | Method, device, storage medium and system for detecting illumination uniformity of eye fundus camera |
-
2015
- 2015-10-30 CN CN201520864566.9U patent/CN205157166U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973571A (en) * | 2016-04-27 | 2016-09-28 | 厦门大学 | CCD-based LED chip microscopic surface brightness measuring method |
| CN105973571B (en) * | 2016-04-27 | 2018-05-29 | 厦门大学 | A kind of measuring method of the LED chip macroscopic surface brightness based on CCD |
| CN106879249A (en) * | 2017-04-26 | 2017-06-20 | 航天科技控股集团股份有限公司 | Printed board assembly automatic checkout equipment |
| CN111044261A (en) * | 2019-12-27 | 2020-04-21 | 深圳盛达同泽科技有限公司 | Method, device, storage medium and system for detecting illumination uniformity of eye fundus camera |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 519000 -1, two or three, four building, 1 floor, 10 Futian Road, Xiangzhou District, Zhuhai, Guangdong. Patentee after: Zhuhai Bojie electronic Limited by Share Ltd Address before: 519000 Futian Road, Xiangzhou District, Zhuhai, Guangdong Province, No. 10 Patentee before: Zhuhai Bojay Electronics Co., Ltd. |