CN202353897U - LED light source control circuit - Google Patents
LED light source control circuit Download PDFInfo
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- CN202353897U CN202353897U CN2011205295059U CN201120529505U CN202353897U CN 202353897 U CN202353897 U CN 202353897U CN 2011205295059 U CN2011205295059 U CN 2011205295059U CN 201120529505 U CN201120529505 U CN 201120529505U CN 202353897 U CN202353897 U CN 202353897U
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides an LED light source control circuit which is connected with a general power supply and an LED light source, and comprises a constant power supply circuit supplying stable current for the LED light source, and an optical control circuit and a time control circuit connected with the optical control circuit; the optical control circuit is used for automatically controlling the on/off of the LED light source according to the illumination intensity; the time control circuit is used for controlling the power on operation time of the LED light source, and is connected with the constant power supply circuit; the LED light source control circuit further comprises an executive circuit used for responding to signals of the optical control circuit and the time control circuit to turn on/off the constant power supply circuit; and the executive circuit is connected with the constant power supply circuit and the time control circuit. The LED light source adopts an optical control and time control combined control manner, the on/off of the LED light source can be automatically achieved with the changes of the natural light intensity, and besides, the time to begin/stop powering the LED can be regulated according to demands.
Description
Technical field
The utility model relates to led circuit, especially a kind of LED lamp control circuit.
Background technology
At present; General illuminating lamp have light-operated circuit (like corridor lamp control) or the time control circuit (like street lamp control); But single light-operated circuit or the time control circuit obvious not enough to energy-saving effect because throughout the year time difference relation, when the urban road in summer often can see that it is also black but street lamp light yellow; Winter, deceived but street lamp does not have brightly very much in the sky, has brought a lot of inconveniences to people's activities.In the corridor in some late into the night, lamp light yellow has still caused the waste of the energy when unmanned movable.
Moreover, because needs of people is varied, need to continue the asynchronism(-nization) of energising; With lamp etc., people are movable during its same nightfall with street lamp very needs when frequent like advertising lamp, corridor lamp, landscape lamp, school, but when the late into the night; People are movable rare, arrived behind the certain hour if can just close automatically and can save the energy, and if can set lasting conduction time as required; Realize regularly closing, needs then more gear to actual circumstances.Therefore, need a kind of can the keying by self adaptation light, the blended lamp light control circuit that again can self adaptation sound opens and closes.
Summary of the invention
In order to overcome above-mentioned defective; The utility model provides a kind of led light source control circuit; The control mode that adopts light-operated time control to combine; Can realize the opening and closing of led light source automatically along with the variation of natural lighting intensity, can regulate the time of led light source energising opening and closing simultaneously as required.
The led light source control circuit of the utility model; Connect general supply and led light source; Be included as led light source the constant-current power supply circuit of stabling current is provided, light-operated circuit and the time control circuit that is connected with light-operated circuit, said light-operated circuit are used for the open and close according to the strong and weak led light source of control automatically of intensity of illumination; Control circuit is used to control the electrical working time of led light source when said, and control circuit connects said constant-current power supply circuit when said.Described led light source control circuit also comprises executive circuit, be used for the response light control circuit, the time control circuit signal cut or conducting constant-current power supply circuit, said executive circuit connect said constant-current power supply circuit and the time control circuit.Described led light source control circuit also comprises derailing switch S1, S2; Said derailing switch S1 one end connects general supply; The other end connects the input of constant-current power supply circuit, and said derailing switch S2 one end connects general supply, the other end connect light-operated circuit and the time control circuit input.
Further; Said light-operated circuit is used for the open and close according to the strong and weak led light source of control automatically of intensity of illumination; It comprises that photo-resistor, resistor, capacitor C6, C7, the timely basis set of variable resistance RP1 become circuit U 1; Resistor R 7 is connected in time-base integrated circuit U1 with capacitor C6, C7, is the configuration circuit element of time-base integrated circuit U1, and photo-resistor RL connects the input of time-base integrated circuit U1; The photo-resistor RL and the time-base integrated circuit U1 of light-operated circuit connect into light-operated Schmidt trigger, the input of control circuit and executive circuit when the output of time-base integrated circuit U1 connects.
Further; Control circuit is used to control the electrical working time of led light source when said; It comprises resistor R 4, R5, R6, capacitor C3, C4, C5, diode D, variable resistance RP2 and clock circuit U 2, and variable resistance RP2, capacitor C3, resistor R 4, R5, R6 and clock circuit U2 internal circuit constitute the oscillating circuit that produces clock pulse signal.
Further; Said executive circuit comprises resistor R 2, R3, thyristor VS and switching tube VT1; Resistor R 3 is series at the base stage of switching tube VT1; The time control circuit clock pulse signal that produces be added to the base stage of switching tube VT1 through resistor R 3, loop of said executive circuit and said permanent power circuit formation is controlled the lasting electrical working time of led light source.
Further, said constant-current power supply circuit is used for converting civil power into direct voltage, it comprised the step-down metering function capacitor C 1, have pressure stabilization function diode D1, have the diode D2 of rectified action and have the capacitor C 2 of filter action.
Further, said constant-current power supply circuit can adopt non-isolation or isolated buck current constant mode.
Further, said derailing switch S1, S2 can be switch on wall, soft-touch control or air switch.
Further, said led light source control circuit comprises that also anti-light disturbs delay circuit, in case night instantaneous illumination interfered circuit operate as normal, it comprises resistor R 7 that is connected with photo-resistor RL and the capacitor C7 that is connected with resistor R 7.
Further, said led light source control circuit also comprises excess voltage protection, plays the overvoltage protection effect, and it comprises the piezo-resistance RV1 that is parallel to thyristor VS two ends.
The led light source control circuit work of the utility model is sensitive, and reliability is high, good stability, and easy to use, effectively energy savings can prevent the operate as normal of instantaneous illumination interfered circuit at night, and can prolong the useful life of illuminating lamp.
The led light source control circuit of the utility model can be realized the opening and closing of led light source automatically along with the variation of natural lighting intensity, and control circuit when connecting is simultaneously regulated conduction time as required.Because needs of people is varied, need to continue the asynchronism(-nization) of energising, like advertising lamp, corridor lamp, landscape lamp, school with lamp etc.; People are movable during its same nightfall with street lamp very needs when frequent; But when the late into the night, people are movable rare, close automatically after having arrived certain hour; And can set lasting conduction time according to actual needs, realize regularly closing.Simultaneously also can be manually opened or close.
The effect that the utility model is more useful is: overcome the artificial shortcoming of opening or closing lamp fully, and work is sensitive, and stable, reliable, can prevent that night, instantaneous illumination was disturbed, effective energy-conservation electric energy, and easy to use in case of emergency can be manually opened or close lamp.
Description of drawings
Fig. 1 is the theory diagram of the utility model led light source control circuit.
Fig. 2 is the circuit structure diagram of the utility model led light source control circuit.
Embodiment
Fig. 1 is the theory diagram of the utility model embodiment; Fig. 2 is the circuit structure diagram of present embodiment Fig. 1.As shown in Figure 1; The described led light source control circuit of present embodiment connects general supply and led light source; Said led light source control circuit comprises light-operated circuit and the time control circuit that is connected with light-operated circuit; Said light-operated circuit is used for the open and close according to the strong and weak led light source of control automatically of intensity of illumination, and control circuit is used to control the electrical working time of led light source when said, and control circuit connects said constant-current power supply circuit when said.Described led light source control circuit also comprises executive circuit, be used for the response light control circuit, the time control circuit signal cut or conducting constant-current power supply circuit, said executive circuit connect said constant-current power supply circuit and the time control circuit.Described led light source control circuit also comprises derailing switch S1, S2; Said derailing switch S1 one end connects general supply; The other end connects the input of constant-current power supply circuit, and said derailing switch S2 one end connects general supply, the other end connect light-operated circuit and the time control circuit input.
As shown in Figure 1, described led light source control circuit comprises derailing switch S1, S2, constant-current power supply circuit, the timely control circuit of light-operated circuit.Said derailing switch S1 one end connects general supply, and the other end connects the input of constant-current power supply circuit, and led light source connects the output of constant-current power supply circuit, and said constant-current power supply circuit directly provides stable electric current for led light source.Said derailing switch S2 one end connects general supply, the other end connect light-operated circuit with the time control circuit input, in case of emergency can be manually directly unlatching or off switch device S1 and S2.In this execution mode, described led light source control circuit also comprises executive circuit, be used for the response light control circuit, the time control circuit signal cut or conducting constant-current power supply circuit, said executive circuit connects said constant-current power supply circuit.
See also Fig. 2 circuit structure diagram.As shown in Figure 2, said light-operated circuit is used for the open and close according to the strong and weak led light source of control automatically of intensity of illumination.Said light-operated circuit comprises that photo-resistor RL, resistor R 7, capacitor C6, C7, the timely basis set of variable resistance RP1 become circuit U 1 (555 integrated circuit).Resistor R 7 is connected in time-base integrated circuit U1 with capacitor C6, C7, is the configuration circuit element of time-base integrated circuit U1.Photo-resistor RL connects the input of time-base integrated circuit U1, and the photo-resistor RL of light-operated circuit and time-base integrated circuit U1 (555 integrated circuit) connect into light-operated Schmidt trigger.The input of control circuit and executive circuit when the output of time-base integrated circuit U1 connects.In this execution mode, time-base integrated circuit U1 is 555 integrated circuits.The sensitivity of photo-resistor RL can be regulated through variable resistance RP1.
Control circuit is used to control the electrical working time of led light source when said.Control circuit comprises resistor R 4, R5, R6, capacitor C3, C4, C5, diode D3, variable resistance RP2 and clock circuit U 2 (CD4060 integrated circuit) when said.Variable resistance RP2, capacitor C3, resistor R 4, R5, R6 and clock circuit U2 internal circuit constitute oscillating circuit; Confirm length regularly through the resistance value of regulating variable resistance RP2, thereby make clock circuit U2 (CD4060 integrated circuit) produce clock pulse signal.
Said executive circuit be used for the response light control circuit, the time control circuit signal cut or conducting constant-current power supply circuit; It comprises resistor R 2, R3, thyristor VS and switching tube VT1; Resistor R 3 is series at the base stage of switching tube VT1; The time control circuit clock pulse signal that produces be added to the base stage of switching tube VT1 through resistor R 3, make switching tube VT1 conducting, again through 2 couples of thyristor VS of resistor R triggering and conducting.Said executive circuit connect said constant-current power supply circuit and the time control circuit, form a loop with said permanent power circuit the lasting electrical working time of led light source controlled.
The civil power that said constant-current power supply circuit is used for 220 volts converts the direct voltage that is about 9V into, it comprised the step-down metering function capacitor C 1, have pressure stabilization function diode D1, have the diode D2 of rectified action and have the capacitor C 2 of filter action.Civil power is after C1 step-down current limliting, D1 voltage stabilizing, D2 rectification and C2 filtering, and output is about the direct voltage of 9V, for led light source provides operating voltage, and exports to time-base integrated circuit U1 and clock circuit U2 as operating voltage.Said constant-current power supply circuit can adopt non-isolation of the prior art or isolated buck current constant mode.
Said derailing switch S1, S2 can be common switch on wall, soft-touch control or air switch or the like, and the user can select suitable switch according to the size of lighting device power.When needs are opened automatically or are closed led light source, the device S2 that only need close a switch, at this moment derailing switch S1 is in off-state; When needs are manually opened or are closed led light source, only need off switch device S2, control the unlatching of led light source or close through the state of control switch device S1; When abnormal conditions take place, only need to break off two derailing switch S1, S2.
Said led light source control circuit comprises that also anti-light disturbs delay circuit, in case night instantaneous illumination interfered circuit operate as normal, it comprises resistor R 7 that is connected with photo-resistor RL and the capacitor C7 that is connected with resistor R 7.
Said led light source control circuit also comprises excess voltage protection, plays the overvoltage protection effect, and it comprises the piezo-resistance RV1 that is parallel to thyristor VS two ends, in case the peak voltage in the electrical network damages thyristor.
The course of work of light-operated circuit is such: after connecting the 220V alternating current, the 220V alternating current is after C1 step-down current limliting, D1 voltage stabilizing, D2 rectification and C2 filtering, and output is about the direct voltage of 9V, and to the input of U1, U2 input voltage is provided.The photo-resistor RL of light-operated circuit and time-base integrated circuit U1 (555 integrated circuit) connect into light-operated Schmidt trigger.During daytime; Because extraneous light is stronger; Photo resistance RL is low resistive state, and the control signal that is added to time-base integrated circuit U1 (555 integrated circuit) input 2 pin is a high level, this moment time-base integrated circuit U1 (555 integrated circuit) output 3 pin output low levels.Run into foggy weather on night or daytime; Under the situation of natural light irradiation undercapacity; Photo-resistor RL loses illumination and presents high-impedance state (sensitivity of photo-resistor RL can be regulated through variable resistance RP1); The control signal that is added to time-base integrated circuit U1 (555 integrated circuit) input is a low level, and the 3 pin saltus steps of time-base integrated circuit U1 (555 integrated circuit) are high level.
The time control circuit the course of work be such: the time control circuit start by light-operated circuit output high level; After basis set became the 3 pin output high level of circuit U 1 (555 integrated circuit) at that time, the power end that high level adds to clock circuit U2 (CD4060 integrated circuit) 16 pin on the one hand made the time control circuit working; Add to the emitter of switching tube VT1 simultaneously; Because at this moment electroclock circuit U 2 (CD4060 integrated circuit) 3 pin are low level; Low level makes switching tube VT1 conducting through the base stage that resistor R 3 is added to switching tube VT1; The gate pole that trigger current is added to thyristor VS makes it conducting, makes said constant-current source circuit get the constant electric current of electric entering operating state input, and led light source gets electric lighting.After arriving timing, electroclock circuit U 2 (CD4060 integrated circuit) 3 pin output high level, switching tube VT1 ends, and thyristor VS turn-offs, and constant-current source circuit quits work, and led light source extinguishes.After arriving timing; Because time-base integrated circuit U1 (555 integrated circuit) output 3 pin are still exported high level; Clock circuit U2 (CD4060 integrated circuit) still can work on; Output 3 pin of clock circuit U2 this moment (CD4060 integrated circuit) still are high level; High level adds to 11 pin of clock circuit U2 (CD4060 integrated circuit) through diode D3, makes the oscillating circuit failure of oscillation, and the state of entire circuit remains to daybreak clock circuit U2 (CD4060 integrated circuit) outage always and quits work fully.
The led light source control circuit work of the utility model is sensitive, and reliability is high, good stability, and easy to use, effectively energy savings can prevent the operate as normal of instantaneous illumination interfered circuit at night, and can prolong the useful life of illuminating lamp.
The led light source control circuit of the utility model can be realized the opening and closing of led light source automatically along with the variation of natural lighting intensity, and control circuit when connecting is simultaneously regulated conduction time as required.Because needs of people is varied, need to continue the asynchronism(-nization) of energising, like advertising lamp, corridor lamp, landscape lamp, school with lamp etc.; People are movable during its same nightfall with street lamp very needs when frequent; But when the late into the night, people are movable rare, close automatically after having arrived certain hour; And can set lasting conduction time according to actual needs, realize regularly closing.Simultaneously also can be manually opened or close.
The effect that the utility model is more useful is: overcome the artificial shortcoming of opening or closing lamp fully, and work is sensitive, and stable, reliable, can prevent that night, instantaneous illumination was disturbed, effective energy-conservation electric energy, and easy to use in case of emergency can be manually opened or close lamp.
Claims (10)
1. led light source control circuit; Be connected between general supply and the led light source, be included as the constant-current power supply circuit that led light source provides stabling current, it is characterized in that; Said led light source control circuit comprises light-operated circuit and the time control circuit that is connected with light-operated circuit; Said light-operated circuit is used for the open and close according to the strong and weak led light source of control automatically of intensity of illumination, and control circuit is used to control the electrical working time of led light source when said, and control circuit connects said constant-current power supply circuit when said.
2. a kind of led light source control circuit according to claim 1; Said led light source control circuit also comprises executive circuit; Be used for the response light control circuit, the time control circuit signal cut or conducting constant-current power supply circuit, said executive circuit connect said constant-current power supply circuit and the time control circuit.
3. a kind of led light source control circuit according to claim 1 and 2; Also comprise derailing switch (S1, S2); Said derailing switch (S1) end connects general supply; The other end connects the input of constant-current power supply circuit, and said derailing switch (S2) end connects general supply, the other end connect light-operated circuit and the time control circuit input.
4. a kind of led light source control circuit according to claim 1 and 2; Wherein said light-operated circuit is used for the open and close according to the strong and weak led light source of control automatically of intensity of illumination; It comprises photo-resistor (RL), resistor (R7), capacitor (C6, C7), variable resistance (RP1) and time-base integrated circuit (U1); Resistor (R7) and capacitor (C6, C7) are connected in time-base integrated circuit (U1); It is the configuration circuit element of time-base integrated circuit (U1); Photo-resistor (RL) connects the input of time-base integrated circuit (U1), and photo-resistor of light-operated circuit (RL) and time-base integrated circuit (U1) connect into light-operated Schmidt trigger, the input of control circuit and executive circuit when the output of time-base integrated circuit (U1) connects.
5. a kind of led light source control circuit according to claim 1 and 2; Control circuit is used to control the electrical working time of led light source when wherein said; It comprises resistor (R4, R5, R6), capacitor (C3, C4, C5), variable resistance (RP2) and clock circuit (U2), and variable resistance (RP2), capacitor (C3), resistor (R4, R5, R6) constitute the oscillating circuit that produces clock pulse signal with clock circuit (U2) circuit.
6. a kind of led light source control circuit according to claim 2; Wherein said executive circuit comprises resistor (R2, R3), thyristor (VS) and switching tube (VT1); Resistor (R3) is series at the base stage of switching tube (VT1); The time control circuit clock pulse signal that produces be added to the base stage of switching tube (VT1) through resistor (R3), said executive circuit and loop of said permanent power circuit formation are controlled the lasting electrical working time of led light source.
7. a kind of led light source control circuit according to claim 1 and 2; Wherein said constant-current power supply circuit is used for converting civil power into direct voltage; It comprised the step-down metering function electric capacity (C1), have the diode (D1) of pressure stabilization function, the electric capacity (C2) that has the diode (D2) of rectified action and have filter action, said constant-current power supply circuit can adopt non-isolation or isolated buck current constant mode.
8. a kind of led light source control circuit according to claim 1 and 2, wherein said derailing switch (S1, S2) can be switch on wall, soft-touch control or air switch.
9. a kind of led light source control circuit according to claim 1 and 2; Wherein said led light source control circuit comprises that also anti-light disturbs delay circuit; In case night instantaneous illumination interfered circuit operate as normal, it comprises resistor (R7) that is connected with photo-resistor (RL) and the capacitor (C7) that is connected with resistor (R7).
10. a kind of led light source control circuit according to claim 1 and 2, wherein said led light source control circuit also comprises excess voltage protection, plays the overvoltage protection effect, it comprises the piezo-resistance (RV1) that is parallel to thyristor (VS) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205295059U CN202353897U (en) | 2011-12-17 | 2011-12-17 | LED light source control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205295059U CN202353897U (en) | 2011-12-17 | 2011-12-17 | LED light source control circuit |
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| CN202353897U true CN202353897U (en) | 2012-07-25 |
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| CN2011205295059U Expired - Fee Related CN202353897U (en) | 2011-12-17 | 2011-12-17 | LED light source control circuit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118463A (en) * | 2013-02-04 | 2013-05-22 | 上思县东岽电子科技有限责任公司 | Self-on self-adjusting self-off LED road lamp with semiconductor refrigerating piece for heat radiating |
| CN103209519A (en) * | 2013-03-12 | 2013-07-17 | 上思县东岽电子科技有限责任公司 | Light emitting diode (LED) ceiling lamp with timing and automatic dimming functions |
| CN103716940A (en) * | 2012-09-29 | 2014-04-09 | 深圳市海洋王照明工程有限公司 | Light-operated street-lamp circuit |
| CN103731963A (en) * | 2014-01-17 | 2014-04-16 | 黄焕珠 | Constant current driving optically controlled LED (Light Emitting Diode) illuminating lamp |
| CN104640293A (en) * | 2013-11-13 | 2015-05-20 | 深圳市海洋王照明工程有限公司 | Protection circuit |
| CN104640286A (en) * | 2013-11-13 | 2015-05-20 | 深圳市海洋王照明工程有限公司 | Light control circuit and lamp |
| CN104780691A (en) * | 2015-04-24 | 2015-07-15 | 上思县东岽电子科技有限责任公司 | Light control LED street lamp for institution and school office buildings |
| CN107065632A (en) * | 2017-06-15 | 2017-08-18 | 数码辰星科技发展（北京）有限公司 | A kind of electric power management circuit and system |
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2011
- 2011-12-17 CN CN2011205295059U patent/CN202353897U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716940A (en) * | 2012-09-29 | 2014-04-09 | 深圳市海洋王照明工程有限公司 | Light-operated street-lamp circuit |
| CN103716940B (en) * | 2012-09-29 | 2017-12-01 | 深圳市海洋王照明工程有限公司 | Light control road lamp circuit |
| CN103118463A (en) * | 2013-02-04 | 2013-05-22 | 上思县东岽电子科技有限责任公司 | Self-on self-adjusting self-off LED road lamp with semiconductor refrigerating piece for heat radiating |
| CN103209519A (en) * | 2013-03-12 | 2013-07-17 | 上思县东岽电子科技有限责任公司 | Light emitting diode (LED) ceiling lamp with timing and automatic dimming functions |
| CN104640293A (en) * | 2013-11-13 | 2015-05-20 | 深圳市海洋王照明工程有限公司 | Protection circuit |
| CN104640286A (en) * | 2013-11-13 | 2015-05-20 | 深圳市海洋王照明工程有限公司 | Light control circuit and lamp |
| CN104640286B (en) * | 2013-11-13 | 2018-11-27 | 深圳市海洋王照明工程有限公司 | A kind of light-operated circuit and lamps and lanterns |
| CN103731963A (en) * | 2014-01-17 | 2014-04-16 | 黄焕珠 | Constant current driving optically controlled LED (Light Emitting Diode) illuminating lamp |
| CN104780691A (en) * | 2015-04-24 | 2015-07-15 | 上思县东岽电子科技有限责任公司 | Light control LED street lamp for institution and school office buildings |
| CN107065632A (en) * | 2017-06-15 | 2017-08-18 | 数码辰星科技发展（北京）有限公司 | A kind of electric power management circuit and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN LAPIN LIGHTING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ANHUI JIXINZHAO OPTECH CO., LTD. Effective date: 20121105 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 231500 CHAOHU, ANHUI PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20121105 Address after: Longgang District of Shenzhen city center city, Guangdong province 518000 21 New District Huilong Po Industrial Zone Patentee after: Shenzhen Lapin Lighting Technology Co., Ltd. Address before: 231500 north and South Avenue of Lujiang Economic Development Zone, Chaohu, Anhui Patentee before: Anhui Jixinzhao Photoelectric S&T Holdings Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121217 |