CN201177205Y - Large power LED stroboscope - Google Patents
Large power LED stroboscope Download PDFInfo
- Publication number
- CN201177205Y CN201177205Y CNU2008200853841U CN200820085384U CN201177205Y CN 201177205 Y CN201177205 Y CN 201177205Y CN U2008200853841 U CNU2008200853841 U CN U2008200853841U CN 200820085384 U CN200820085384 U CN 200820085384U CN 201177205 Y CN201177205 Y CN 201177205Y
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- China
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- power led
- constant current
- current drive
- great power
- drive circuit
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- Expired - Fee Related
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- Y02B20/42—
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a high-power LED stroboscope, comprising a frequency control circuit, a constant current drive circuit and a high-power LED component, wherein the output end of the frequency control circuit is connected to the input end of the constant current drive circuit so as to transmit a signal with certain frequency generated by the frequency control circuit to the constant current drive circuit; and the output end of the constant current drive circuit is connected to the input end of the high-power LED component so as to input the signal with certain frequency to the constant current drive circuit to drive the high-power LED component to operate. The high-power LED stroboscope ensures that the stroboscope can be used in situations which require high illumination intensity to observe a high-speed moving product in high-speed vibration and adverse conditions through a high-power LED, and can reach the service life over 50,000 hours and achieve the technical effect of illumination in different luminous angles besides response to high frequency through a good radiating device and irradiation of a lens.
Description
Technical field
The utility model relates to a kind of stroboscope, relates in particular to the stroboscope of forming based on great power LED.
Background technology
In the occasion of general high speed printing machine, high-speed packaging machine lamp, need the flicker frequency and the machine operating speed of the lamp of stroboscope to realize synchronously, so that can observe static relatively pattern.The lamp of existing stroboscope all is based on gas-filled lamp bulb or low-power LED (light emitting diode), the performance of gas-filled lamp bulb or low-power LED is as follows respectively: the advantage of gas-filled lamp bulb is brightness height, low price, and shortcoming is that frequency response is slow, antivibration ability, service life are short; Low-power LED is then just opposite, its advantage is that frequency response is fast, shock resistance is strong, shortcoming be brightness low, cost an arm and a leg, and attenuation ratio is very fast, not reaching quick print or high-speed moving object needs the requirement of highlight illumination, also only rests on the test occasion.
Summary of the invention
Is the defective of the stroboscope of light source in order to overcome above-mentioned with gas-filled lamp bulb and low-power LED, and the utility model provides a kind of can adapt to that high-speed response frequency requirement, anti-vibration ability are strong, long service life, the high great power LED stroboscope of brightness.
Great power LED stroboscope provided by the utility model, comprise frequency control circuit, constant current drive circuit and great power LED assembly, the output of frequency control circuit is connected to the input of constant current drive circuit, the signal of the certain frequency that frequency control circuit is produced is given constant current drive circuit, the output of constant current drive circuit is connected to the input of great power LED assembly, and the signal input constant current drive circuit that will have certain frequency is to drive the work of great power LED assembly.The quantity video of great power LED dodges the requirement of observer and decides, and as needing the lower occasion of brightness ratio, can use single great power LED, as need the higher occasion of brightness ratio, then uses a plurality of great power LEDs.The frequency parameter of frequency control circuit can regulate and be stored in parameter in the frequency control circuit by frequency signal input circuit input or user, and output signal is to constant current drive circuit after handling by analysis.The resulting signal of frequency control circuit can be the signal that the synchronization pulse that gives of button, knob, touch screen, other machines or image capture apparatus give.
For improving the radiating effect of high-power LED light source, the further technical scheme of the utility model is that heat abstractor is set on great power LED, great power LED is installed on the heat abstractor, and heat abstractor can be the pcb board (printed wiring board) or the metal fin of metal substrate.
Penetrate uniformity and directionality for reaching illumination, further technical scheme of the present utility model is the lens that different angles are set in the place ahead of great power LED, in order to realize the illumination of different lighting angles.According to different lighting requirements, described lens can be concavees lens or convex lens.
The beneficial effect that the utlity model has is: by adopting great power LED, make stroboscope can use the occasion of observing the high-speed motion product in high speed vibration, condition very severe and needs illuminance occurred frequently, and adopt good heat abstractor and scioptics irradiation, except can responding very high frequency, can also reach service life and the technique effect of realizing different lighting angle illuminations greater than 50000 hours.
Below in conjunction with drawings and embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model great power LED stroboscope.
Fig. 2 is the structural representation of great power LED assembly among Fig. 1.
Fig. 3 is the electrical schematic diagram of Fig. 1 medium frequency control circuit.
Fig. 4 is the circuit theory diagrams of the utility model great power LED stroboscope.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, the embodiment of the utility model great power LED stroboscope, comprise signal input circuit 7, frequency control circuit 6, constant current drive circuit 5 and great power LED assembly 4, the output of signal input circuit 7 is connected to the input of frequency control circuit 6, the output of frequency control circuit 6 is connected to the input of constant current drive circuit 5, the signal of the certain frequency that frequency control circuit 6 is produced is given constant current drive circuit 5, the output of constant current drive circuit 5 is connected to the input of great power LED assembly 4, input to the PWM (pulse width modulator) of constant current drive circuit 5 from the frequency signal of control circuit 6, thereby change the frequency of great power LED flicker.
Great power LED assembly 4 comprises metal fin 4.1, is installed in some great power LEDs 4.2 and lens 4.3 on the metal fin 4.1, lens 4.3 be positioned at great power LED 4.2 the place ahead and with its maintenance certain distance.In order to detect the sign that contains fluorescent material on some specialities, great power LED 4.2 can adopt the purple LED lamp.
The frequency signal that frequency control circuit 6 passes to constant current drive circuit 5 can be to have regulated and be stored in parameter in the frequency control circuit 6 by the user, and can adopt dual mode to produce:, can directly use MCU (one chip microcomputer) to produce frequency signal 1, when the occasion that only need export in the application scenario less than 2Khz; 2, produce greater than the frequency more than the 2Khz when needs, can use MCU control DDS (Direct Digital Synthesizer) chip to produce frequency signal.
The below bright for instance course of work of the present utility model: such as, the object that need illuminate is with the frequency uniform motion of 100HZ.Open the great power LED stroboscope, the frequency parameter of its work originally is the data (such as being 120HZ) of preserving last time, and the running frequency of the frequency of great power LED stroboscope and object is asynchronous at this moment.Use potentiometer knob or regulating frequencies such as digital coding type encoder or switch on the signal input circuit 7 to arrive 100HZ, perhaps use the synchronizing signal of reserving rotating speed on some former machine, perhaps capture device is caught the frequency of its object operation so that the frequency of stroboscopic reaches 100HZ, after frequency control circuit 6 obtains the signal of 100HZ, to send the frequency signal of 100HZ to constant current drive circuit 5, constant current drive circuit 5 drives great power LED assembly 4 with the LED drive current that the electric energy of civil power or battery transfers constant current to, and operating frequency changes with frequency control circuit 6.
Claims (4)
1, a kind of great power LED stroboscope, it is characterized in that: comprise frequency control circuit (6), constant current drive circuit (5) and great power LED assembly (4), the output of frequency control circuit (6) is connected to the input of constant current drive circuit (5), the signal of the certain frequency that frequency control circuit (6) is produced is given constant current drive circuit (5), the output of constant current drive circuit (5) is connected to the input of great power LED assembly (4), and the signal input constant current drive circuit (5) that will have certain frequency is to drive great power LED assembly (4) work.
2, great power LED stroboscope according to claim 1 is characterized in that: the lens (4.3) that described great power LED assembly (4) comprises heat abstractor (4.1), is installed at least one great power LED (4.2) on the heat abstractor and is positioned at great power LED the place ahead.
3, great power LED stroboscope according to claim 2 is characterized in that: described heat abstractor (4.1) is the PCB or the metal fin of metal substrate.
4, according to claim 2 or 3 described great power LED stroboscopes, it is characterized in that: described lens (4.3) are concavees lens or convex lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200853841U CN201177205Y (en) | 2008-04-07 | 2008-04-07 | Large power LED stroboscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200853841U CN201177205Y (en) | 2008-04-07 | 2008-04-07 | Large power LED stroboscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201177205Y true CN201177205Y (en) | 2009-01-07 |
Family
ID=40217220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200853841U Expired - Fee Related CN201177205Y (en) | 2008-04-07 | 2008-04-07 | Large power LED stroboscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201177205Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692561A (en) * | 2011-03-25 | 2012-09-26 | 海洋王照明科技股份有限公司 | Flash frequency test circuit and test method thereof |
| CN102692562A (en) * | 2011-03-25 | 2012-09-26 | 海洋王照明科技股份有限公司 | Circuit used for testing flash frequency and method thereof |
| CN104254179A (en) * | 2014-09-03 | 2014-12-31 | 宁波欣达印刷机器有限公司 | LED (light emitting diode) automatic synchronous stroboscopic device and control method thereof |
-
2008
- 2008-04-07 CN CNU2008200853841U patent/CN201177205Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692561A (en) * | 2011-03-25 | 2012-09-26 | 海洋王照明科技股份有限公司 | Flash frequency test circuit and test method thereof |
| CN102692562A (en) * | 2011-03-25 | 2012-09-26 | 海洋王照明科技股份有限公司 | Circuit used for testing flash frequency and method thereof |
| CN102692561B (en) * | 2011-03-25 | 2016-05-18 | 海洋王照明科技股份有限公司 | Flashing rate test circuit and method of testing thereof |
| CN104254179A (en) * | 2014-09-03 | 2014-12-31 | 宁波欣达印刷机器有限公司 | LED (light emitting diode) automatic synchronous stroboscopic device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20130407 |