CN201061078Y - Acousto-optic Q switch driver - Google Patents
Acousto-optic Q switch driver Download PDFInfo
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- CN201061078Y CN201061078Y CNU2007201192485U CN200720119248U CN201061078Y CN 201061078 Y CN201061078 Y CN 201061078Y CN U2007201192485 U CNU2007201192485 U CN U2007201192485U CN 200720119248 U CN200720119248 U CN 200720119248U CN 201061078 Y CN201061078 Y CN 201061078Y
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Abstract
The utility model discloses an acousto-optical Q switch driver, which comprises a control circuit, a display circuit, a key-press circuit, an external port, an overheat and overpower detector, a protective circuit, a high frequency small signal generator, a modulation circuit, and a power amplification circuit. The utility model is characterized in that: the control circuit is a microprocessor control circuit, and the display circuit comprises an LCD display circuit as well as a memory circuit; the microprocessor control circuit comprises a microprocessor U1, a signal isolation 1 circuit, a signal isolation 2 circuit and a signal synthesis circuit. The utility model has the advantages of visual display manner of various parameters, abundant display contents, storable parameters before operation and after each adjustment, extremely small jitter of modulation frequency, and adjustable first pulse coefficient. Therefore, the utility model can be applied in laser processing equipment, especially laser marking equipment for controlling the Q switch laser.
Description
Technical field
The present invention relates to the Q switching laser control device in a kind of laser process equipment, the Q switching laser control device in particularly a kind of laser marking device.
Background technology
The structure of existing Q switching laser marking device as shown in Figure 1.Among the figure: computer 101, laser cooling system 102, Q switching laser 103, two-dimensional scan galvanometer device 104, focus lamp 105, workpiece 106, LASER Light Source 107.Wherein, comprise marking control card 1011 in the computer 101; Comprise back mirror 1031 in the Q switching laser 103, acoustooptic Q-switching element 1032, resonant cavity 1033, outgoing mirror 1034.When computer marking software indication carrying out marking action, the marking control card can send signal of telecommunication indication power supply and work by the path of appointment by fixed current, two-dimensional scan galvanometer, meanwhile send out optical control signal to relevant position computer-chronograph marking control card, by acousto-optic q switch driver (being called for short the Q driver) control Q switching laser works at the two-dimensional scan vibration mirror scanning.In the two-dimensional scan process, its path is the curve or the line segment of sealing, the Q driver is controlled not bright dipping of laser on the path that does not need marking, needing on the path of marking the control laser to do the point-like marking release time, point that obtains separating by the point-like marking or continuous different processing effects such as lines by modulating frequency and Q.Promptly finish processing behind the end of scan to workpiece.The method of control Q driver has 3 kinds in the existing Q switching laser index carving system:
1, Q internal drive control mode (being called for short the internal control mode): computer marking control card only provides cursor and carves signal.The Q driver is loaded on the carrier signal of fixed frequency according to the modulating frequency of setting in the driver, Q release time, the synthetic modulation signal of first impulse ratio when receiving out light signal.The coaxial cable that carrier signal after this modulation is fixed by impedance is sent into the Q switching element of laser, the work of control laser;
2, Q driver external control mode (being called for short the external control mode): computer marking control card provides cursor and carves signal and analog voltage signal, analog voltage signal is used to set the modulating frequency of Q driver, and this aanalogvoltage and fixed frequency (0.2-50KHz) are sent by computer marking control card according to the mode of linear segmented usually.After the Q driver is received bright dipping marking signal and analog voltage signal, press the frequency of analog voltage signal correspondence, with the Q release time that internal drive is set, first impulse ratio acting in conjunction generates modulation signal and is loaded on the carrier signal of fixed frequency.Carrier signal after the modulation is sent into the Q switching element of laser by coaxial cable, the work of control laser;
3, external modulation mode: send modulation signal by computer marking control card, by the direct modulated carrier signal of Q internal drive circuit, the carrier signal after the modulation is sent into the Q switching element of laser by coaxial cable, the work of control laser.Because the external modulation mode can not effectively add first impulse ratio, though at aspect such as anti-interference good effect is arranged, this control mode seldom adopts in Q switching laser index carving system.
In the process of Q driver control Q switching laser, go out light signal effectively before, carrier signal has applied the long relatively time, makes Q switching be in off state, and the pumping source that Laser Power Devices drive has accumulated many relatively energy continuously to the working-laser material irradiation on the working-laser material.Therefore, much higher than follow-up pulse of first peak-power of laser pulse during marking.The purpose of having introduced first impulse ratio is that the Q switching element is opened slowly, suppresses first peak-power of laser pulse, makes the peak power of first pulse follow the equal of follow-up pulse, and the degree of depth when making marking is even.
The operation principle of traditional Q driver such as Fig. 2, shown in Figure 6 comprise control circuit 1089, LED display circuit 10811, key circuit 10810, outside control mouth 1088, overheated overpower detector 1085, protective circuit 1086, high frequency small-signal generator 1081, modulation circuit 1082, power amplification circuit 1,083 nine parts composition.When index carving system is worked: if adopt the internal control mode, then computer marking control card 1011 sends bright dipping marking signal 10111, if adopt the external control mode, then computer marking control card 1011 sends bright dipping marking signal 10111 and analog voltage signal 10113, if adopt the external modulation mode, then computer marking control card 1011 sends external modulation signal 10112; Control circuit can obtain corresponding signal from outside control mouth 1088 according to the set-up mode that the operator imports from key circuit 10810.For the internal control mode: can obtain an analog voltage by the potentiometer W1 108101 that regulates in the key circuit 10810, this magnitude of voltage one road is connected to frequency display circuit 10811.Frequency display circuit is 4 voltage-frequency conversion modules, is used to show the frequency of current setting.The V/F circuit 10895 (Voltage-to-frequency Converter) in the control circuit is delivered on another road.The V/F circuit can produce a fixing pwm signal (pulse-width signal), and modulating frequency F is corresponding with analog voltage in the signal, and the time of negative pulse width is Q T1 release time, and this width is determined by the component parameter in the V/F circuit 10895, is a fixed value.The bright dipping marking signal 10111 of outside control mouth 1088 is directly linked V/F circuit 10895 by internal wiring, is used to control whether output pwm signal of V/F circuit 10895 outputs, and high level is output, and low level is not exported.Under the normal condition, outside control mouth 1088 is not received bright dipping marking signal, and V/F circuit 10895 is output as high level.When V/F circuit 10895 receives effective bright dipping marking signal (high level), one road signal produces circuit by the first impulse ratio of Signal Spacing I 10891 indications and produces first pulse signal.It normally is high level that first impulse ratio produces circuit, only export the slow dropping signal (being first pulse signal 10892) of a set time length in the rising edge signal time side that receives Signal Spacing I 10891, deliver to modulation circuit 1082 through signal synthesis circuit 10893, control Q driver output end turn-offs carrier signal slowly, and then realizes slowly opening the Q switching element.The output of first impulse ratio generation circuit became high level after output was finished.Another road signal is after a fixed value of time-delay (first pulse delay time T f+PWM high level time Th), and control V/F circuit 10895 makes it at the pwm signal of output output by the parameter preset setting.Pwm signal outputs to modulation circuit 1082 after by Signal Spacing II 10894, signal synthesis circuit 10893.Under two input signal normal conditions of signal synthesis circuit 10893 is high level, first pulse is delayed when descending, the output of signal synthesis circuit 10893 also has proportional output signal, the signal of Signal Spacing II 10894 inputs has only high or low level, and signal synthesis circuit 10893 will preferentially be output as maximum or minimum value by this signal at the output of combiner circuit.High frequency small-signal generator 1081 produces the carrier signal of 40MHz or 27MHz, by modulation circuit 1082, with fundamental signal 10812 synthetic modulated carrier signals, is connected to Q switching by coaxial cable 1084 after power amplification circuit 1803 amplifies.For the external control mode: the analog voltage that potentiometer W1 108101 produces is provided by marking control card 1011, the generation of all the other signals, synthetic, amplification process is identical with the internal control mode.For the external modulation mode: the external modulation signal is a pwm signal, and the traditional Q driver directly directly is added to modulation circuit 1082 by Signal Spacing III 10897, by amplifying output behind modulation circuit 1082 modulated carrier signals.
Above-mentioned prior art exists following defective and deficiency:
1, in the existing Q switching laser marking device, adopt LED charactron, LED luminous tube to show relevant parameters such as modulating frequency, Q release time, first impulse ratio, guard mode as display mostly.Its shortcoming is that display mode is not directly perceived, displaying contents is not abundant;
When 2, existing Q switching laser marking device is by the frequent processing work of internal control mode, need on different rapidoprints, to obtain new processing effect, when for example obtaining different processing effects on color, the marking degree of depth etc. or the same material, need readjust modulating frequency, Q release time and first impulse ratio etc., adjusted parameter can't store, next time is when using, readjust again, adjustment repeatedly makes the production efficiency step-down, also the reliability and the life-span of machine is caused adverse influence;
When 3, existing Q switching laser marking device is worked by the external control mode, send bright dipping marking signal, analog voltage signal by computer marking control card.Analog voltage signal is easily introduced interference, causes the modulating frequency of working control Q switching laser action to shake the effect when influencing Q switching laser converted products within the specific limits;
4, the first impulse ratio of existing Q driver is fixed, and can only take into account some frequency bands during Default Value, but in actual the use, different modulating frequencies is set, the effect difference of its inhibition, and therefore existing driver is difficult to adapt to user's demand.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes above-mentioned prior art, provide that a kind of various parameter display mode is directly perceived, displaying contents is abundant, each adjusted parameter can store before the operation, and the modulating frequency shake is minimum, the Q switching driver that first impulse ratio can be regulated.
Above-mentioned purpose adopts following technical scheme just can realize: this programme is the same with prior art, comprises control circuit, display circuit, key circuit, outside control mouth, overheated overpower detector, protective circuit, high frequency small-signal generator, modulation circuit, power amplification circuit; Wherein key circuit, outside control mouth and protective circuit are connected with the input of control circuit respectively, and the LED display circuit is connected with the output of control circuit respectively with modulation circuit; Marking control card, bright dipping marking signal and external modulation signal are connected with the input port of outside control mouth respectively; Overheated overpower detector is connected with the input of protective circuit respectively with outer guard signal; High frequency small-signal (carrier wave) generator is connected with the input of modulation circuit, the output of modulation circuit is connected with the input of power amplification circuit, power amplification circuit is exported radiofrequency signal to Q switching, and its improvement is that said control circuit is a microprocessor control circuit; Said display circuit is a LCD display circuit; Also have one and the interconnective memory circuit of microprocessor control circuit in addition.
The optimal technical scheme that realizes above-mentioned purpose is on the basis of above scheme, and said microprocessor control circuit is designed to comprise a microprocessor U1, Signal Spacing 1 circuit, Signal Spacing 2 circuit and signal synthesis circuit; Wherein microprocessor U1 comprises LCD display module, first impulse ratio generation module and inner pulse-width signal generation module; The input of Signal Spacing 1 circuit is connected with the output of first impulse ratio generation module, and its output is connected with the input of combiner circuit; The input of Signal Spacing 2 circuit can be connected with the output or the external modulation signal of inner pulse-width signal generation module, and its output is connected with combiner circuit; Signal synthesis circuit output modulation signal.
Technique scheme compared with prior art because control circuit is changed into microprocessor control circuit, the LED display circuit is changed into the LCD display circuit, and increased storage circuit, so its beneficial effect is:
1, its various parameter display modes are directly perceived, displaying contents abundant;
2, each adjusted parameter can store before the operation, uses when operating for next time;
3, the modulating frequency shake is minimum, and first impulse ratio can be regulated.
The utility model is more clear to be understood with being convenient in order to make, and below by drawings and Examples it is described in further detail.
Description of drawings
Fig. 1 is the general structure schematic diagram of laser marking device.
Fig. 2 is the acousto-optic q switch driver structured flowchart of prior art.
Fig. 3 is the structured flowchart of the utility model acousto-optic q switch driver.
Fig. 4 is the circuit theory diagrams of the storage circuit among the utility model embodiment.
Fig. 5 is the circuit theory diagrams of the display circuit among the utility model embodiment.
Fig. 6 is the block diagram of the control circuit in the acousto-optic q switch driver of prior art.
Fig. 7 is the block diagram of the microprocessor control circuit among the utility model embodiment.
Fig. 8 is a physical circuit figure of the microprocessor control circuit of Fig. 7.
Embodiment
Referring to Fig. 3,4,5,7,8.Present embodiment comprise microprocessor control circuit 5, LCD display circuit 3, key circuit 4, outside control mouth 6, overheated overpower detector 8, protective circuit 7, high frequency small-signal generator 1, modulation circuit 10, power amplification circuit 9 and with microprocessor control circuit 5 interconnective memory circuits 2; Wherein key circuit 4, outside control mouth 6 and protective circuit 7 are connected with the input of microprocessor control circuit 5 respectively, and LED display circuit 3 is connected with the output of microprocessor control circuit 5 respectively with modulation circuit 10; The bright dipping marking signal 62 that marking control card 63 sends is connected with the input port of outside control mouth 6 respectively with external modulation signal 61; Overheated overpower detector 8 is connected with the input of protective circuit 7 respectively with outer guard signal 71; High frequency small-signal (carrier wave) generator 1 is connected with the input of modulation circuit 10, and the output of modulation circuit 10 is connected with the input of power amplification circuit 9, and power amplification circuit 9 is to Q switching output radio frequency (RF) signal 91.
Above-mentioned microprocessor control circuit 5 (referring again to Fig. 7) comprises a microprocessor U151, Signal Spacing 1 circuit 54, Signal Spacing 2 circuit 52 and signal synthesis circuit 53; Wherein microprocessor U1 comprises display module 511, first impulse ratio generation module 513 and inner pulse-width signal generation module 512; The input of Signal Spacing 1 circuit 54 is connected with the output of first impulse ratio generation module 513, and its output is connected with the input of signal synthesis circuit 53; The input of Signal Spacing 2 circuit 52 can be connected with the output or the external modulation signal 513 of inner pulse-width signal generation module 51, and its output is connected with signal synthesis circuit 53; Signal synthesis circuit 53 output modulation signals 531.
A kind of physical circuit as above-mentioned microprocessor control circuit 5 designs as shown in Figure 8, Signal Spacing 1 circuit 54 in the microprocessor control circuit 5 comprises a precision photoelectric coupler U4 and resistance R 5, R6, precision photoelectric coupler U4 comprises a photophore-LED and a light-receiving device-photosensitive semiconductor pipe, be connected with first impulse ratio generation module in the microprocessor again after the positive pole of this light-emitting diode and resistance R 5 serial connections, its minus earth, the collector electrode of this photosensitive semiconductor pipe with connect operating voltage again, its grounded emitter after resistance R 6 is connected in series; Signal Spacing 2 circuit 52 comprise a high-speed photoelectric coupler U3 and resistance R 4, high-speed photoelectric coupler U3 comprises a photophore-LED and an optical receiving circuit, the positive pole of this LED with after resistance R 4 is connected in series again with microprocessor in the external modulation signal end and connect its minus earth; The power supply termination operating voltage of optical receiving circuit, its output is formed the complementary type emitter follower circuit by two triodes, the collector electrode of NPN triode wherein connects operating voltage, its emitter is connected with the emitter of PNP triode, the grounded collector of PNP triode, the base stage of NPN triode is connected with the base stage of PNP pipe, and connects the output of optical receiving circuit, and the emission that connects altogether is the output of high-speed photoelectric coupler very; Signal synthesis circuit 53 comprises an emitter follower, triode Q1 and diode D1, and emitter follower comprises triode Q2 and resistance R 7; Wherein, the base stage of triode Q2 and resistance R 6 also connect, and its emitter is connected in series back ground connection with resistance R 7, and its collector electrode is connected with the emitter of triode Q1; The contact of two photosensitive semiconductor pipes in the base stage of triode Q1 and the high-speed photoelectric coupler also connects, and its collector electrode connects operating voltage; The base stage of the negative pole of diode D1 and triode Q1 also connects, and its positive pole is exported modulation signal 531 again with resistance R 7 and after connecing.
The model of microprocessor U1 in the above circuit is C8051F preferably; Memory circuit 2 comprises integrated circuit U2 and pull-up resistor R1, the R2 that a model is 24C16; LCD display circuit 3 comprises that a model is the LCD MODULE LCD1 of SVM19264, resistance R 3 and adjustable resistance W1; The model of high-speed photoelectric coupler U3 is that the model of TLP250, precision photoelectric coupler U4 is that the model of TLP521, triode Q1, Q2 is that the model of 2SC2688, diode D1 is FR104.
Microprocessor U1 is according to the setting of key circuit 4, and parameters such as modulating frequency F, the first impulse ratio Tf that the user is set by internal processes, Q T1 release time deposit among the surface-mounted integrated circuit U2 (24C16).When the user need access relevant parameter, from 24C16, read by the program in the microprocessor U1.Adjustable resistance W1 is used to regulate the contrast of LCD display, and power supply is by the display circuit backlight of R3 connection LCD display, and U1 controls the demonstration of LCD by LCD data port and control mouth.The driver control circuit that microprocessor control circuit of the present utility model is more traditional has been simplified V/F converter, Signal Spacing 3, inside/outside portion analog voltage signal, so the reliability of driver and result of use are effectively promoted.Bright dipping marking signal 62 connects the first impulse ratio generation module 513 and the inner PWM generation module 512 of microprocessor 51 inside.First impulse ratio is set the coarse adjustment of doing in a big way by microprocessor 51 according to the user.In addition, under the effect of microprocessor 51, also following and producing trickle variation when modulating frequency changes then first impulse ratio.Inner PWM generation module 512 after first pulse signal sends, the Th side's output pwm signal of delaying time again.External modulation signal 513 connects the display module 511 and the internal processes control switch of microprocessor 51 inside.Display module 511 can detect the modulating frequency F and the negative level time (Q release time) of external modulation signal 513, and shows by LCD display circuit 3.When the Q driver received effective bright dipping marking signal 62, switch W did switching according to the control mode of Set For Current, and when bright dipping marking signal 62 was invalid, the output of W fixedly connect high level.When the Q driver moved by the internal control mode, when detecting effective bright dipping marking signal 62 rising edges, radicals by which characters are arranged in traditional Chinese dictionaries impulse ratio generation module 513 sent slow rising voltage signal in the microprocessor 51, and signal time is adjustable first impulse ratio Tf.Signal is added to emitter follower Q2 and R7 through precision photoelectric coupler U4, and the output C output of emitter follower and the A port of microprocessor 51 are in proportion and reverse analog voltage signal (slow dropping signal).Output terminals A becomes low level after the first pulse signal ends, and the output of precision photoelectric coupler U4 will become high level, and Q2 is a conducting state.In the time of the head pulse signal ends, the inner PWM generation module 512 of microprocessor 51 controls sends pwm signal, is added to triode Q1 through high-speed photoelectric coupler, and this moment, Q2 was a conducting state, and output C will follow the pwm signal variation at a high speed.Diode D1 guarantees that output can be moved low level rapidly to when pwm signal is low level.When driver moved by the external control mode, marking control card 63 need send bright dipping marking signal 62 and external modulation signal 61 simultaneously.When detecting effective bright dipping marking signal 62 rising edges, the first pulse signal of microprocessor 51 outputs.After the first pulse signal output, the B point is directly exported the external modulation signal.First pulse signal is consistent with the building-up process and the internal control mode of external modulation signal.During drive operation, the display module 511 in the microprocessor 51 is delivered on another road of external modulation signal, and display module 511 detects the frequency and the negative level width (Q release time) of external modulation signal 513, and shows by the display screen in the LCD display circuit 3.When driver moved by the external modulation mode, microprocessor 51 output terminals A were output as low level, and the B end is output external modulation signal directly.
Claims (4)
1. an acousto-optic q switch driver comprises control circuit, display circuit, key circuit, outside control mouth, overheated overpower detector, protective circuit, high frequency small-signal generator, modulation circuit, power amplification circuit; Wherein key circuit, outside control mouth and protective circuit are connected with the input of control circuit respectively, and the LED display circuit is connected with the output of control circuit respectively with modulation circuit; Marking control card, bright dipping marking signal and external modulation signal are connected with the input port of outside control mouth respectively; Overheated overpower detector is connected with the input of protective circuit respectively with outer guard signal; High frequency small-signal carrier generator is connected with the discrepancy end of modulation circuit, the output of modulation circuit is connected with the input of power amplification circuit, power amplification circuit is exported radiofrequency signal to Q switching, it is characterized in that said control circuit is a microprocessor control circuit; Said display circuit is a LCD display circuit; Also have one and the interconnective memory circuit of microprocessor control circuit in addition.
2. acousto-optic q switch driver according to claim 1 is characterized in that said microprocessor control circuit comprises a microprocessor U1, Signal Spacing 1 circuit, Signal Spacing 2 circuit and signal synthesis circuit; Wherein microprocessor U1 comprises LCD display module, first impulse ratio generation module and inner pulse-width signal generation module; The input of Signal Spacing 1 circuit is connected with the output of first impulse ratio generation module, and its output is connected with the input of combiner circuit; The input of Signal Spacing 2 circuit can be connected with the output or the external modulation signal of inner pulse-width signal generation module, and its output is connected with combiner circuit; Signal synthesis circuit output modulation signal.
3. acousto-optic q switch driver according to claim 2, it is characterized in that Signal Spacing 1 circuit in the said microprocessor control circuit comprises a precision photoelectric coupler U4 and resistance R 5, R6, precision photoelectric coupler U4 comprises a photophore-LED and a light-receiving device-photosensitive semiconductor pipe, be connected with first impulse ratio generation module in the microprocessor again after the positive pole of this LED and resistance R 5 serial connections, its minus earth, the collector electrode of this photosensitive semiconductor pipe with connect operating voltage again, its grounded emitter after resistance R 6 is connected in series; Signal Spacing 2 circuit comprise a high-speed photoelectric coupler U3 and resistance R 4, high-speed photoelectric coupler U3 comprises a photophore-LED and an optical receiving circuit, the positive pole of this LED with after resistance R 4 is connected in series again with microprocessor in the external modulation signal end and connect its minus earth; The power supply termination operating voltage of optical receiving circuit, its output is formed the complementary type emitter follower circuit by two triodes, the collector electrode of NPN triode wherein connects operating voltage, its emitter is connected with the emitter of PNP triode, the grounded collector of PNP triode, the base stage of NPN triode is connected with the base stage of PNP pipe, and connects the output of optical receiving circuit, and the emission that connects altogether is the output of high-speed photoelectric coupler very; Signal synthesis circuit comprises an emitter follower, triode Q1 and diode D1, and emitter follower comprises triode Q2 and resistance R 7; Wherein, the base stage of triode Q2 and resistance R 6 also connect, and its emitter is connected in series back ground connection with resistance R 7, and its collector electrode is connected with the emitter of triode Q1; The contact of two photosensitive semiconductor pipes in the base stage of triode Q1 and the high-speed photoelectric coupler also connects, and its collector electrode connects operating voltage; The base stage of the negative pole of diode D1 and triode Q1 also connects, and its positive pole is exported modulation signal again with resistance R 7 and after connecing.
4. acousto-optic q switch driver according to claim 3, the model that it is characterized in that said microprocessor U1 is C8051F; Memory circuit comprises integrated circuit U2 and pull-up resistor R1, the R2 that a model is 24C16; Display circuit comprises display module LCD1, resistance R 3 and the adjustable resistance W1 that a model is SVM19264; The model of high-speed photoelectric coupler U3 is that the model of TLP250, precision photoelectric coupler U4 is that the model of TLP521, triode Q1, Q2 is that the model of 2SC2688, diode D1 is FR104.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201192485U CN201061078Y (en) | 2007-03-30 | 2007-03-30 | Acousto-optic Q switch driver |
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| CNU2007201192485U CN201061078Y (en) | 2007-03-30 | 2007-03-30 | Acousto-optic Q switch driver |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195228A (en) * | 2011-04-01 | 2011-09-21 | 中国电子科技集团公司第二十六研究所 | Acousto-optic Q switch drive source with function of automatic first pulse suppression |
| CN103346742A (en) * | 2013-06-05 | 2013-10-09 | 深圳市创鑫激光技术有限公司 | Acousto-optic Q-switch driver |
| CN103560392A (en) * | 2013-09-17 | 2014-02-05 | 中北大学 | Driving power supply of linear acousto-optic modulator with 256 grey levels |
| CN109755852A (en) * | 2017-11-07 | 2019-05-14 | 核工业理化工程研究院 | Based on the controllable Solid State Laser output-controlling device of multimode and control method |
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2007
- 2007-03-30 CN CNU2007201192485U patent/CN201061078Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195228A (en) * | 2011-04-01 | 2011-09-21 | 中国电子科技集团公司第二十六研究所 | Acousto-optic Q switch drive source with function of automatic first pulse suppression |
| CN103346742A (en) * | 2013-06-05 | 2013-10-09 | 深圳市创鑫激光技术有限公司 | Acousto-optic Q-switch driver |
| CN103346742B (en) * | 2013-06-05 | 2016-08-10 | 深圳市创鑫激光股份有限公司 | acousto-optic Q switch driver |
| CN103560392A (en) * | 2013-09-17 | 2014-02-05 | 中北大学 | Driving power supply of linear acousto-optic modulator with 256 grey levels |
| CN103560392B (en) * | 2013-09-17 | 2016-04-06 | 中北大学 | One has 256 grades of linear Acousto-Optic Modulator Drivers of gray scale |
| CN109755852A (en) * | 2017-11-07 | 2019-05-14 | 核工业理化工程研究院 | Based on the controllable Solid State Laser output-controlling device of multimode and control method |
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Owner name: SHENZHEN LIGHTSTAR LASER TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN GUANGDA LASER TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 518000 A, Fortune Plaza, Shennan Road, Shennan Road, Guangdong, Shenzhen, Futian District, 80PQR Patentee after: Shenzhen Lightstar Laser Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Futian District, Lin Yuan Road No. 8 Building 2 floor 1 Patentee before: Shenzhen Guangda Leser Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20160330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |