CN203338172U - Semiconductor laser constant current drive and temperature control system - Google Patents
Semiconductor laser constant current drive and temperature control system Download PDFInfo
- Publication number
- CN203338172U CN203338172U CN2013204442308U CN201320444230U CN203338172U CN 203338172 U CN203338172 U CN 203338172U CN 2013204442308 U CN2013204442308 U CN 2013204442308U CN 201320444230 U CN201320444230 U CN 201320444230U CN 203338172 U CN203338172 U CN 203338172U
- Authority
- CN
- China
- Prior art keywords
- resistance
- semiconductor laser
- circuit
- chip microcomputer
- termination
- 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
Links
Images
Landscapes
- Semiconductor Lasers (AREA)
Abstract
The utility model discloses a semiconductor laser constant current drive and temperature control system which is composed of synchronous buck converter (U1), a constant current drive circuit (U2), a three end voltage regulator (U3), a single chip microcomputer (U4), an current regulating circuit (U5), a temperature sensing circuit (U6), a synchronous buck converter (U7), a PWM power drive circuit (U8) and a thermoelectric cooler (U9). A synchronous buck circuit and the constant current drive circuit provide a stable and reliable constant current source with a strong anti-interference ability for a semiconductor laser. The current regulating circuit is connected with the single chip microcomputer. The single chip microcomputer carries out sampling through AD, produces PWM of different duty cycles to control the constant current drive circuit, and outputs adjustable current to drive the semiconductor laser. A temperature sensor detects the work temperature of the semiconductor laser. The work temperature is converted into voltage and enters the single chip microcomputer through an AD conversion circuit. The single chip microcomputer produces a PWM signal according to the detected temperature data, and the PWM signal is output to the thermoelectric cooler through the PWM power drive circuit, thus the work of the thermoelectric cooler is controlled, and semiconductor laser temperature automatic control is realized. According to the utility model, an adjustable quasi continuous semiconductor laser drive power supply is provided; heating or cooling can be carried out on the semiconductor laser according to the monitored work temperature of the semiconductor laser; and the service life of the semiconductor laser is prolonged.
Description
Technical field
The present invention relates to constant current driving and temperature and control, particularly a kind of semiconductor laser constant current driving and temperature control system.
Background technology
Semiconductor laser is current-injecting semiconductor PN light emitting devices, has little, lightweight, the direct modulation of volume, wide bandwidth, conversion efficiency is high, highly reliable and be easy to the characteristics such as integrated, is widely used.Because semiconductor laser is a kind of high power density device with high quantum efficiency; its ability to bear for surge is poor; the variation that electric current is small will cause the very big variation of luminous power output and the variation of device parameters; these change the safe handling directly jeopardize device, thereby in actual applications performance and the safeguard protection of driving power are had to very high requirement.In addition on the one hand, semiconductor laser is power consumption type active device, temperature in the course of work can have a significant effect to its output characteristics, and excess Temperature will cause semiconductor laser ageing even to damage, therefore temperature need to be controlled to the applicable working temperature of laser instrument, so just can make laser output power stable, extend the serviceable life of laser instrument.
At present, the constant current driving of noise spectra of semiconductor lasers and temperature are controlled to also have much needs the problem solved.The for example current precision of constant current driver output, startup slowly; In temperature controlled processes, not high etc. to the monitoring accuracy of temperature.
Summary of the invention
The present invention is directed to the technical deficiency that existing product exists, and a kind of semiconductor laser constant current driving and temperature control system of being applicable to of developing.This system provides a kind of adjustable quasi-continuous semiconductor laser drive power, simultaneously can also be according to the semiconductor laser working temperature of monitoring, and noise spectra of semiconductor lasers is heated or freeze, prolongation semiconductor laser serviceable life.
The technology used in the present invention means are as follows:
A kind of semiconductor laser constant current driving and temperature control system, it is characterized in that comprising synchronous buck converter (U1), constant-current drive circuit (U2), three terminal regulator (U3), single-chip microcomputer (U4), current regulating circuit (U5), temperature sensing circuit (U6), synchronous buck converter (U7), pwm power driving circuit (U8), thermoelectric refrigerating unit (U9), the annexation of its various piece is:
Described constant-current drive circuit (U2), three terminal regulator (U3), current regulating circuit (U5), temperature sensing circuit (U6), pwm power driving circuit (U8) all are connected with single-chip microcomputer (U4), described pwm power driving circuit (U8) is connected with synchronous buck converter (U7), described constant-current drive circuit (U2) is connected with synchronous buck converter (U17), and described temperature sensing circuit (U6) is connected with semiconductor laser with thermoelectric refrigerating unit (U9):
The inner annexation of described constant-current drive circuit (U2) is as follows:
The PWM_LD signal enters the in-phase end of operational amplifier (U1A) through the second resistance (R2), the end of oppisite phase of operational amplifier (U1A) is connected with output terminal; Output termination the 3rd resistance (R3) of operational amplifier (U1A), the other end of the 3rd resistance (R3) is connected with the node of the 7th resistance (R7) with the in-phase end of operational amplifier (U1B), the end of oppisite phase of operational amplifier (U1B) is connected with the node of the 5th resistance (R5) with the 8th resistance (R8), the other end ground connection of the 8th resistance (R8); The output terminal of operational amplifier (U1B) is connected with an end of the 4th resistance (R4), and the other end of the 4th resistance (R4) connects NMOS(Q1) grid; NMOS(Q1) drain electrode connects synchronous buck converter (U17) output terminal, and source electrode NMOS(Q1) is connected with the node of the 5th resistance (R5) with the 6th resistance (R6); The other end of the 6th resistance (R6) is connected with the cathode node of the 3rd electric capacity (C3), diode (D1) negative pole, the 9th resistance (R9) and laser diode with the 7th resistance (R7); The other end and minus earth laser diode of the other end of the 3rd electric capacity (C3), diode (D1) positive pole, the 9th resistance (R9).
The inner annexation of described pwm power driving circuit (U8) is as follows:
AVDD end and the PVDD termination 5V of pwm power driving circuit (U8); AGND end and PGND end ground connection; 32 pin of HIZ termination the 23rd resistance (R23) and single-chip microcomputer (U4), the 23rd resistance (R23) other end ground connection; FAULT1 end pin meets 2 pin of the 24th resistance (R24) and single-chip microcomputer (U4), the 24th another termination of resistance (R24) 5V; 3 pin of FAULT0 termination the 26th resistance (R26) and single-chip microcomputer (U4), the 26th another termination of resistance (R26) 5V; IN+ end, IN-end and SHUTDOWM end are connected with 29 pin, 28 pin and 27 pin of single-chip microcomputer (U4) respectively; One end of OUT+ termination the 4th inductance (L4), another termination the 17th electric capacity (C17) of the 4th inductance (L4) and the node of thermoelectric refrigerating unit (U9), the other end ground connection of the 17th electric capacity (C17); One end of OUT-termination the 5th inductance (L5), another termination the 19th electric capacity (C19) of the 5th inductance (L5) and the node of thermoelectric refrigerating unit (U9), the other end ground connection of the 19th electric capacity (C19);
The operational amplifier chip of described constant-current drive circuit is LM2904.
It is DRV592 that the H bridge of described pwm power driving circuit (U8) drives chip.
Described single-chip microcomputer is STM8S105K4.
The accompanying drawing explanation
Fig. 1 is theory diagram of the present invention;
Fig. 2 is pwm power driving circuit principle figure of the present invention;
Fig. 3 is driving circuit principle figure of the present invention;
Fig. 4 is single chip circuit schematic diagram of the present invention.
Fig. 5 is three terminal regulator of the present invention, current regulating circuit and temperature sensing circuit schematic diagram.
Embodiment
As shown in Figure 1, it is by comprising that synchronous buck converter (U1), constant-current drive circuit (U2), three terminal regulator (U3), single-chip microcomputer (U4), current regulating circuit (U5), temperature sensing circuit (U6), synchronous buck converter (U7), pwm power driving circuit (U8), thermoelectric refrigerating unit (U9) etc. form for principle of the invention block diagram.
After adding the 12V DC voltage by external interface, through three terminal regulator output 5V DC voltage, single-chip microcomputer is started working, and internal processes brings into operation.At first, internal processes detects the input value of current regulating circuit (U5), and according to different input values, program is exported the PWM ripple of different duty, is used for regulating the drive current of semiconductor laser.The value of feedback of detected temperatures sensing circuit (U6), according to the difference of value of feedback, export to pwm power driving circuit (U8) by the PWM ripple of different duty simultaneously, controls thermoelectric refrigerating unit (U9) refrigeration or heating after overdriving.
Principle of the invention figure is as shown in Fig. 2,3,4,5.
In Fig. 2, the PWM_LD signal enters the in-phase end of operational amplifier (U1A) through the second resistance (R2), and the end of oppisite phase of operational amplifier (U1A) is connected with output terminal, and operational amplifier (U1A) forms voltage follower; Output termination the 3rd resistance (R3) of operational amplifier (U1A), the other end of the 3rd resistance (R3) is connected with the node of the 7th resistance (R7) with the in-phase end of operational amplifier (U1B), the end of oppisite phase of operational amplifier (U1B) is connected with the node of the 5th resistance (R5) with the 8th resistance (R8), the other end ground connection of the 8th resistance (R8), operational amplifier (U1B) forms a differential amplifier circuit; The output terminal of operational amplifier (U1B) is connected with an end of the 4th resistance (R4), and the other end of the 4th resistance (R4) connects NMOS(Q1) grid; NMOS(Q1) drain electrode connects synchronous buck converter (U17) output terminal, and source electrode NMOS(Q1) is connected with the node of the 5th resistance (R5) with the 6th resistance (R6), NMOS(Q1) forms and expands current circuit; The other end of the 6th resistance (R6) is connected with the cathode node of the 3rd electric capacity (C3), diode (D1) negative pole, the 9th resistance (R9) and laser diode with the 7th resistance (R7); The other end and minus earth laser diode of the other end of the 3rd electric capacity (C3), diode (D1) positive pole, the 9th resistance (R9).
In Fig. 3, the AVDD of pwm power driver (U3) end and PVDD termination 5V; AGND end and PGND end ground connection; 32 pin of HIZ termination the 23rd resistance (R23) and single-chip microcomputer (U4), the 23rd resistance (R23) other end ground connection; FAULT1 end pin meets 2 pin of the 24th resistance (R24) and single-chip microcomputer (U4), the 24th another termination of resistance (R24) 5V; 3 pin of FAULT0 termination the 26th resistance (R26) and single-chip microcomputer (U4), the 26th another termination of resistance (R26) 5V; IN+ end, IN-end and SHUTDOWM end are connected with 29 pin, 28 pin and 27 pin of single-chip microcomputer (U4) respectively; One end of OUT+ termination the 4th inductance (L4), another termination the 17th electric capacity (C17) of the 4th inductance (L4) and the node of thermoelectric refrigerating unit (U9), the other end ground connection of the 17th electric capacity (C17); One end of OUT-termination the 5th inductance (L5), another termination the 19th electric capacity (C19) of the 5th inductance (L5) and the node of thermoelectric refrigerating unit (U9), the other end ground connection of the 19th electric capacity (C19).
In Fig. 4 and Fig. 5, single-chip microcomputer (U4) is as the control core of system, and its PWM_LD end connects constant-current drive circuit (U2); PWM_IN+, PWM_IN-, FAULT1, FAULT0, HI_Z and SHUTDOWN end are connected to pwm power driving circuit (U8); The SW interface is the one-chip machine simulation debugging interface; The AD_TEC end is connected to the 12 resistance (R12) and is connected with the node of the 13 resistance (R13), another termination 5V of the 12 resistance (R12), another termination GND of the 13 resistance (R13), this partial circuit is used for measuring the temperature of semiconductor laser; The AD_PTR end is connected to the centre tap of variable resistor (R15), a termination 5V of variable resistor (R15), and other end ground connection, this partial circuit is used for adjusting the size of semiconductor laser drive current.Three terminal regulator (U5) output 5V voltage, for single-chip microcomputer provides working power.
Show after tested, the present invention has the characteristics such as circuit is simple, stable performance, the output current precision is high, temperature control is accurate.
Claims (4)
1. a semiconductor laser constant current driving and temperature control system, it is characterized in that comprising synchronous buck converter (U1), constant-current drive circuit (U2), three terminal regulator (U3), single-chip microcomputer (U4), current regulating circuit (U5), temperature sensing circuit (U6), synchronous buck converter (U7), pwm power driving circuit (U8), thermoelectric refrigerating unit (U9), the annexation of its various piece is:
Described constant-current drive circuit (U2), three terminal regulator (U3), current regulating circuit (U5), temperature sensing circuit (U6), pwm power driving circuit (U8) all are connected with single-chip microcomputer (U4), described pwm power driving circuit (U8) is connected with synchronous buck converter (U7), described constant-current drive circuit (U2) is connected with synchronous buck converter (U17), and described temperature sensing circuit (U6) is connected with semiconductor laser with thermoelectric refrigerating unit (U9);
The inner annexation of described constant-current drive circuit (U2) is as follows:
The PWM_LD signal enters the in-phase end of operational amplifier (U1A) through the second resistance (R2), the end of oppisite phase of operational amplifier (U1A) is connected with output terminal; Output termination the 3rd resistance (R3) of operational amplifier (U1A), the other end of the 3rd resistance (R3) is connected with the node of the 7th resistance (R7) with the in-phase end of operational amplifier (U1B), the end of oppisite phase of operational amplifier (U1B) is connected with the node of the 5th resistance (R5) with the 8th resistance (R8), the other end ground connection of the 8th resistance (R8); The output terminal of operational amplifier (U1B) is connected with an end of the 4th resistance (R4), and the other end of the 4th resistance (R4) connects NMOS(Q1) grid; NMOS(Q1) drain electrode connects synchronous buck converter (U17) output terminal, and source electrode NMOS(Q1) is connected with the node of the 5th resistance (R5) with the 6th resistance (R6); The other end of the 6th resistance (R6) is connected with the cathode node of the 3rd electric capacity (C3), diode (D1) negative pole, the 9th resistance (R9) and laser diode with the 7th resistance (R7); The other end and minus earth laser diode of the other end of the 3rd electric capacity (C3), diode (D1) positive pole, the 9th resistance (R9);
The inner annexation of described pwm power driving circuit (U8) is as follows:
AVDD end and the PVDD termination 5V of pwm power driver (U3); AGND end and PGND end ground connection; 32 pin of HIZ termination the 23rd resistance (R23) and single-chip microcomputer (U4), the 23rd resistance (R23) other end ground connection; FAULT1 end pin meets 2 pin of the 24th resistance (R24) and single-chip microcomputer (U4), the 24th another termination of resistance (R24) 5V; 3 pin of FAULT0 termination the 26th resistance (R26) and single-chip microcomputer (U4), the 26th another termination of resistance (R26) 5V; IN+ end, IN-end and SHUTDOWM end are connected with 29 pin, 28 pin and 27 pin of single-chip microcomputer (U4) respectively; One end of OUT+ termination the 4th inductance (L4), another termination the 17th electric capacity (C17) of the 4th inductance (L4) and the node of thermoelectric refrigerating unit (U9), the other end ground connection of the 17th electric capacity (C17); One end of OUT-termination the 5th inductance (L5), another termination the 19th electric capacity (C19) of the 5th inductance (L5) and the node of thermoelectric refrigerating unit (U9), the other end ground connection of the 19th electric capacity (C19).
2. a kind of semiconductor laser constant current driving according to claim 1 and temperature control system, the operational amplifier chip that it is characterized in that described constant-current drive circuit (U2) is LM2904.
3. a kind of semiconductor laser constant current driving according to claim 1 and temperature control system, is characterized in that the H bridge driving chip of described pwm power driving circuit (U8) is DRV592.
4. a kind of semiconductor laser constant current driving according to claim 1 and temperature control system, is characterized in that described single-chip microcomputer is STM8S105K4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204442308U CN203338172U (en) | 2013-07-25 | 2013-07-25 | Semiconductor laser constant current drive and temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204442308U CN203338172U (en) | 2013-07-25 | 2013-07-25 | Semiconductor laser constant current drive and temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203338172U true CN203338172U (en) | 2013-12-11 |
Family
ID=49706837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204442308U Expired - Fee Related CN203338172U (en) | 2013-07-25 | 2013-07-25 | Semiconductor laser constant current drive and temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203338172U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104238599A (en) * | 2014-09-12 | 2014-12-24 | 山东大学 | TEC temperature controller based on single-chip microcomputer and applied to optical fiber system |
| CN104331102A (en) * | 2014-09-18 | 2015-02-04 | 杭州电子科技大学 | TEC-based laser temperature control circuit |
| CN104345750A (en) * | 2013-07-25 | 2015-02-11 | 长春工业大学 | Semiconductor laser constant current driving and temperature control system |
| CN105630037A (en) * | 2014-10-31 | 2016-06-01 | 天津市普瑞仪器有限公司 | Temperature control system |
| CN106033203A (en) * | 2015-03-10 | 2016-10-19 | 联想(北京)有限公司 | Control device |
| CN106451065A (en) * | 2016-10-09 | 2017-02-22 | 北京杏林睿光科技有限公司 | Constant-current driving system of semiconductor laser |
| CN106711757A (en) * | 2016-12-16 | 2017-05-24 | 山东北方光学电子有限公司 | Drive circuit for semiconductor laser |
| CN107436431A (en) * | 2017-07-17 | 2017-12-05 | 南京理工大学 | A kind of pulse laser emission circuit |
| CN108233169A (en) * | 2015-05-06 | 2018-06-29 | 武汉博激世纪科技有限公司 | Semiconductor laser adjustable constant-flow driving circuit based on three sections of voltage-stablizers |
| CN108563260A (en) * | 2016-12-26 | 2018-09-21 | 武汉博激世纪科技有限公司 | A kind of high accuracy temperature control circuit with DAC constant-current circuits |
| CN109326956A (en) * | 2018-11-19 | 2019-02-12 | 深圳市大族锐波传感科技有限公司 | A kind of laser driving system and semiconductor laser module |
| CN110609393A (en) * | 2019-09-23 | 2019-12-24 | 山西傲维光视光电科技有限公司 | Laser light source system for balancing service life of laser and eliminating speckles for cinema |
| CN112098978A (en) * | 2020-09-14 | 2020-12-18 | 哈工大机器人（合肥）国际创新研究院 | System and method for improving on-state speed of TOF camera laser and reducing driving power consumption |
| CN116048156A (en) * | 2023-01-10 | 2023-05-02 | 江苏三联生物工程股份有限公司 | Bidirectional temperature control system of electrochemiluminescence detection device |
-
2013
- 2013-07-25 CN CN2013204442308U patent/CN203338172U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345750B (en) * | 2013-07-25 | 2017-12-19 | 长春工业大学 | A kind of semiconductor laser constant current driving and temperature control system |
| CN104345750A (en) * | 2013-07-25 | 2015-02-11 | 长春工业大学 | Semiconductor laser constant current driving and temperature control system |
| CN104238599A (en) * | 2014-09-12 | 2014-12-24 | 山东大学 | TEC temperature controller based on single-chip microcomputer and applied to optical fiber system |
| CN104331102A (en) * | 2014-09-18 | 2015-02-04 | 杭州电子科技大学 | TEC-based laser temperature control circuit |
| CN105630037A (en) * | 2014-10-31 | 2016-06-01 | 天津市普瑞仪器有限公司 | Temperature control system |
| CN106033203A (en) * | 2015-03-10 | 2016-10-19 | 联想(北京)有限公司 | Control device |
| CN106033203B (en) * | 2015-03-10 | 2019-01-15 | 联想(北京)有限公司 | A kind of control device |
| CN108233169A (en) * | 2015-05-06 | 2018-06-29 | 武汉博激世纪科技有限公司 | Semiconductor laser adjustable constant-flow driving circuit based on three sections of voltage-stablizers |
| CN106451065B (en) * | 2016-10-09 | 2023-07-04 | 北京杏林睿光科技有限公司 | Semiconductor laser constant current driving system |
| CN106451065A (en) * | 2016-10-09 | 2017-02-22 | 北京杏林睿光科技有限公司 | Constant-current driving system of semiconductor laser |
| CN106711757A (en) * | 2016-12-16 | 2017-05-24 | 山东北方光学电子有限公司 | Drive circuit for semiconductor laser |
| CN108563260A (en) * | 2016-12-26 | 2018-09-21 | 武汉博激世纪科技有限公司 | A kind of high accuracy temperature control circuit with DAC constant-current circuits |
| CN107436431A (en) * | 2017-07-17 | 2017-12-05 | 南京理工大学 | A kind of pulse laser emission circuit |
| CN109326956A (en) * | 2018-11-19 | 2019-02-12 | 深圳市大族锐波传感科技有限公司 | A kind of laser driving system and semiconductor laser module |
| CN110609393A (en) * | 2019-09-23 | 2019-12-24 | 山西傲维光视光电科技有限公司 | Laser light source system for balancing service life of laser and eliminating speckles for cinema |
| CN112098978A (en) * | 2020-09-14 | 2020-12-18 | 哈工大机器人（合肥）国际创新研究院 | System and method for improving on-state speed of TOF camera laser and reducing driving power consumption |
| CN112098978B (en) * | 2020-09-14 | 2024-03-26 | 哈工大机器人（合肥）国际创新研究院 | System and method for improving turn-on speed of TOF camera laser and reducing driving power consumption |
| CN116048156A (en) * | 2023-01-10 | 2023-05-02 | 江苏三联生物工程股份有限公司 | Bidirectional temperature control system of electrochemiluminescence detection device |
| CN116048156B (en) * | 2023-01-10 | 2024-01-30 | 江苏三联生物工程股份有限公司 | Bidirectional temperature control system of electrochemiluminescence detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203338172U (en) | Semiconductor laser constant current drive and temperature control system | |
| CN104345750A (en) | Semiconductor laser constant current driving and temperature control system | |
| CN102290705A (en) | High-reliability constant voltage mode semiconductor laser driver with continuously adjustable output light power | |
| CN103701033A (en) | Work protection system for DFB (distributed feed back) laser | |
| CN204538461U (en) | A kind of drive circuit for laser | |
| CN113110634A (en) | Semiconductor laser temperature control system, equipment and method | |
| CN100527036C (en) | Semiconductor laser temperature control system | |
| CN201084032Y (en) | Semiconductor laser temperature control system | |
| CN109814631A (en) | Small-sized quick high accuracy constant temperature system based on TEC | |
| CN215181607U (en) | Semiconductor laser temperature control system and equipment | |
| CN103822729A (en) | Design of thermoelectric generation thermal system wireless temperature measuring apparatus | |
| CN107544333A (en) | A kind of automation data intelligent monitor system based on mobile internet-of-things terminal | |
| CN201171240Y (en) | LED constant-current driver with temperature protection | |
| CN205642489U (en) | Type hot type gas flow measuring device is diped in low -power consumption | |
| CN103747567A (en) | LED light source constant-current driving circuit | |
| CN201706379U (en) | Solar photoelectric integrated light power supply | |
| CN204681625U (en) | Input feedforward LED drive circuit | |
| JP6056976B2 (en) | Electronic equipment | |
| CN105784035A (en) | Low-power-consumption and immersed type thermal gas flow measuring method and device | |
| CN204104190U (en) | LED drive power and LED display | |
| CN104853511A (en) | Gate driving type low-power temperature measuring system based on precision reverse current source | |
| CN203232277U (en) | A high-precision temperature generator based on a microprocessor | |
| CN205039396U (en) | Take semiconductor laser drive power supply of control by temperature change circuit | |
| CN203026791U (en) | Intelligent adjustable light source device | |
| CN207504916U (en) | A kind of Internet of Things automated data intelligent monitor system |
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 |
Granted publication date: 20131211 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |