CN102679192A - Intelligent light source without light attenuation - Google Patents
Intelligent light source without light attenuation Download PDFInfo
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- CN102679192A CN102679192A CN201110068780XA CN201110068780A CN102679192A CN 102679192 A CN102679192 A CN 102679192A CN 201110068780X A CN201110068780X A CN 201110068780XA CN 201110068780 A CN201110068780 A CN 201110068780A CN 102679192 A CN102679192 A CN 102679192A
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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
Abstract
The invention relates to an LED (Light Emitting Diode) lamp and specifically discloses an intelligent light source without light attenuation. The intelligent light source comprises an LED main light source mounted on a lamp shell and further comprises a photosensitive receiving circuit, a light attenuation detecting circuit and a compensation light source, wherein the photosensitive receiving circuit is used for collecting an illumination intensity signal of the LED main light source; the light attenuation detecting circuit is used for comparing the illumination intensity signal with a preset intensity threshold; and if the illumination intensity signal is less than the intensity threshold, the compensation light source is turned on. The light attenuation problem of the lamp is indirectly solved by using the intelligent light source without light attenuation and the service life of the lamp is prolonged.
Description
Technical field
The present invention relates to a kind of LED light fixture, be specifically related to a kind of bad light intelligence light source.
Background technology
All there is the problem of light decay in light fixture, especially the LED light fixture.Because in the time of great power LED work, the operating temperature of itself can not well distribute, and will cause the LED working junction temperature too high, thereby accelerate the light decay of LED, causes the lost of life of light fixture.
At present, in order to solve the problem of light decay, present thinking all concentrates on methods such as the packaging technology of LED is improved, increasing light fixture area of dissipation to reduce the LED operating temperature, and how these methods also can not fundamentally solve the light decay problem of LED light fixture.Because the light decay of LED own is that objective reality can not be eliminated, and at most also can only slow down its light decay, in case the led light source light decay in the LED light fixture promptly uses end-of-life to a certain degree just not reaching the requirement of user for brightness.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of LED light fixture of longer service life.
For realizing the foregoing invention purpose, technical scheme that the present invention adopts is following:
A kind of bad light intelligence light source comprises the LED main light source that is installed on the lamp housing; Also comprise photosensitive receiving circuit, light decay testing circuit and compensatory light; Said photosensitive receiving circuit is gathered the intensity of illumination signal of said LED main light source; Said light decay testing circuit compares said intensity of illumination signal and preset intensity threshold, less than said intensity threshold, then opens said compensatory light like said intensity of illumination signal.
Said bad light intelligence light source, said intensity threshold size is 86% of the pairing intensity of illumination signal value of the initial luminous intensity of said LED main light source.
In the said bad light intelligence light source, said photosensitive receiving circuit is a plurality of photo resistance that are distributed on the lamp housing, and said light filling source is a plurality of LED that are cascaded.
Because the light fixture light decay is embodied in the reduction of its quantity of illumination, the present invention changes through the intensity of illumination of photosensitive its LED main light source of receiving circuit perception, through the light decay testing circuit itself and preset intensity threshold is compared, and determines whether to open compensatory light.When this light fixture light decay to certain degree, the intensity of illumination that just photosensitive receiving circuit perceives its LED main light source is just opened offset supply during less than preset threshold value.Intensity threshold of the present invention can be confirmed according to the scope that allows light decay, is X% such as allowing light decay, and this intensity threshold size is (1-X%) of the pairing illumination intensity value of the initial luminous intensity of its LED main light source so.
By on can know that the thinking that the present invention solves the light decay problem is to take the measure of light filling, rather than the continuity conventional thought removes to improve or stop this irreversible light decay.
Therefore, the present invention has solved the problem of light fixture light decay from the side, makes and has obtained prolongation its service life.
Description of drawings
The picture that this description of drawings provided is used for auxiliary to further understanding of the present invention, constitutes the application's a part, does not constitute to improper qualification of the present invention, in the accompanying drawings:
Fig. 1 is a kind of concrete structure sketch map of existing LED light fixture;
Fig. 2 is a kind of concrete structure sketch map of the present invention after improving;
Fig. 3 is an electric theory diagram of the present invention;
Fig. 4 is a kind of particular circuit configurations figure of the present invention.
Diagram:
1, LED main light source 2, photosensitive receiving circuit
3, light decay testing circuit 4, compensating circuit
The specific embodiment
To combine accompanying drawing and practical implementation method to specify the present invention below, be used for explaining the present invention in schematic enforcement of the present invention and explanation, but not as to qualification of the present invention.
Embodiment 1:
As shown in Figure 2; Present embodiment discloses a kind of bad light intelligence light source; Comprise the LED main light source 1, photoreceptor, light decay testing circuit 3 and the compensatory light 4 that are installed on the lamp housing; A plurality of photoreceptors constitute photosensitive receiving circuit 2, and its compensatory light 4 is included as lamp pearl and the lens that light filling adds.Wherein, for better light filling, its compensatory light 4 is evenly distributed between each LED main light source 1.Wherein, in order to gather the intensity of illumination signal of LED main light source 1, photoreceptor is evenly distributed on around the LED main light source 1.
Be depicted as a kind of circuit block diagram and the particular circuit configurations sketch map of present embodiment like Fig. 3 and 4; Photosensitive receiving circuit 2, light decay testing circuit 3, compensatory light 4 are cascaded successively; Photosensitive receiving circuit 2 is gathered the intensity of illumination signal of said LED main light source 1; Light decay testing circuit 3 compares said intensity of illumination signal and preset intensity threshold, less than said intensity threshold, then opens said compensatory light 4 like said intensity of illumination signal.According to general light decay situation, the intensity threshold size is 90% of the pairing intensity of illumination signal value of the initial luminous intensity of said LED main light source in the present embodiment.
Fig. 4 is a kind of particular circuit configurations sketch map of present embodiment.Among the figure, photo resistance R16 constitutes photosensitive receiving circuit.Among the figure; Chip IC 1, optocoupler U2, triode Q1, Q2, relay K 1; Diode D1; Capacitor C 2, C3, C4, C5, resistance R 2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R15, R16, R17, above components and parts link together through the connected mode among the figure and constitute the light decay testing circuit.Among the figure, LED1,,,,,, LEDn series connection constitutes the compensatory light circuit.
The present invention has increased photosensitive receiving circuit 2, light decay testing circuit 3, compensating circuit 4 on traditional LED lamp luminescence face; Because the light decay of light fixture is embodied in the reduction of lamp luminescence amount,, convert thereof into the variation of a level signal through the illumination of the LED main light source 1 on the former light fixture of photosensitive receiving circuit 2 receptions.Preset light fixture light decay permissible value-intensity threshold; Such as allowing light decay 10%, produce a signal difference when photoreceptor detects the initial luminous quantity of light fixture (not light decay) and light decay 10% so, be delivered to light decay testing circuit 3 to this signal difference; Light decay testing circuit 3 is through relatively amplifying; Export one and open signal, thereby drive compensatory light 4 work, thereby replenish 10% light decay of light fixture.
Lamp pearl and lens that light filling of the present invention added are compensatory lights, and when light fixture did not have light decay or light decay not to surpass the degree that allows, they were idle.Also having a kind of situation is that additional light source also can be worked when the LED of light fixture main light source reduces by 10% because of the fault luminous quantity, thereby the luminous quantity that ensures light fixture does not reduce.
Need to prove; The present invention only is illustrated the situation of fixed compensation light quantity, and how many present invention can also adopt the decay of LED main light source, compensates what mode; Thereby make that the luminous quantity of light fixture is invariable always, these all are protection scope of the present invention.
Need to prove, the present invention only schematic illustration a kind of situation of photosensitive receiving circuit, the present invention can also adopt other optical sensors, with reach gather purpose that the LED main light source quantity of illumination changes all can, these all are protection scope of the present invention.
Need to prove; The present invention only schematic illustration a kind of situation of light decay testing circuit, the present invention can also adopt other light decay testing circuits, such as adopting single-chip microcomputer; Judge through the monolithic program when illumination variation and control open compensatory light; These versions can both adopt existing techniques in realizing, and therefore, these all are protection scope of the present invention.
More than the technical scheme that the embodiment of the invention provided has been carried out detailed introduction; Used concrete example among this paper the principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. a bad light intelligence light source comprises the LED main light source that is installed on the lamp housing, it is characterized in that:
Also comprise photosensitive receiving circuit, light decay testing circuit and compensatory light;
Said photosensitive receiving circuit is gathered the intensity of illumination signal of said LED main light source;
Said light decay testing circuit compares said intensity of illumination signal and preset intensity threshold, less than said intensity threshold, then opens said compensatory light like said intensity of illumination signal.
2. bad light intelligence light source according to claim 1 is characterized in that:
Said intensity threshold size is 86% of the pairing intensity of illumination signal value of the initial luminous intensity of said LED main light source.
3. bad light intelligence light source according to claim 1 is characterized in that:
Said photosensitive receiving circuit is a plurality of photo resistance that are distributed on the lamp housing.
4. bad light intelligence light source according to claim 1 is characterized in that:
Said light filling source is a plurality of LED that are cascaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068780XA CN102679192A (en) | 2011-03-11 | 2011-03-11 | Intelligent light source without light attenuation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068780XA CN102679192A (en) | 2011-03-11 | 2011-03-11 | Intelligent light source without light attenuation |
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|---|---|
| CN102679192A true CN102679192A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110068780XA Pending CN102679192A (en) | 2011-03-11 | 2011-03-11 | Intelligent light source without light attenuation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163039A (en) * | 2015-04-21 | 2016-11-23 | 松下电气机器（北京）有限公司 | A kind of light fixture with constant luminous flux and light-dimming method thereof |
| CN106287408A (en) * | 2016-08-03 | 2017-01-04 | 田雨庭 | A kind of high-precision sun optical simulator |
| CN109637455A (en) * | 2019-01-11 | 2019-04-16 | 合肥京东方显示技术有限公司 | A kind of array substrate, its driving method, display panel and display device |
| CN109946228A (en) * | 2017-12-12 | 2019-06-28 | 里特机械公司 | Optics Yarn senser and its control method |
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| JP2006269932A (en) * | 2005-03-25 | 2006-10-05 | Denso Corp | Illumination drive circuit for vehicle |
| CN101421558A (en) * | 2003-03-24 | 2009-04-29 | 路创电子公司 | The system of daylight and artificial light and sun glare in the control space |
| CN201285323Y (en) * | 2008-09-05 | 2009-08-05 | 达方电子股份有限公司 | Light attenuation detector and lamp with the light attenuation detector |
| CN201487769U (en) * | 2009-08-04 | 2010-05-26 | 陈天星 | Solar street lamp |
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2011
- 2011-03-11 CN CN201110068780XA patent/CN102679192A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421558A (en) * | 2003-03-24 | 2009-04-29 | 路创电子公司 | The system of daylight and artificial light and sun glare in the control space |
| JP2006269932A (en) * | 2005-03-25 | 2006-10-05 | Denso Corp | Illumination drive circuit for vehicle |
| CN201285323Y (en) * | 2008-09-05 | 2009-08-05 | 达方电子股份有限公司 | Light attenuation detector and lamp with the light attenuation detector |
| CN201487769U (en) * | 2009-08-04 | 2010-05-26 | 陈天星 | Solar street lamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163039A (en) * | 2015-04-21 | 2016-11-23 | 松下电气机器（北京）有限公司 | A kind of light fixture with constant luminous flux and light-dimming method thereof |
| CN106287408A (en) * | 2016-08-03 | 2017-01-04 | 田雨庭 | A kind of high-precision sun optical simulator |
| CN109946228A (en) * | 2017-12-12 | 2019-06-28 | 里特机械公司 | Optics Yarn senser and its control method |
| CN109637455A (en) * | 2019-01-11 | 2019-04-16 | 合肥京东方显示技术有限公司 | A kind of array substrate, its driving method, display panel and display device |
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