CN204578837U - A kind of light fixture with constant luminous flux - Google Patents
A kind of light fixture with constant luminous flux Download PDFInfo
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- CN204578837U CN204578837U CN201520244966.XU CN201520244966U CN204578837U CN 204578837 U CN204578837 U CN 204578837U CN 201520244966 U CN201520244966 U CN 201520244966U CN 204578837 U CN204578837 U CN 204578837U
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- light fixture
- light
- optical sensor
- luminous flux
- luminous
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of light fixture, particularly a kind of light fixture with constant luminous flux, comprise: luminous component, it is characterized in that: described light fixture also comprises: for regulating the control device of described luminous component output light flux and for sensing the optical sensor of the luminous intensity of its position; The input side of described control device is electrically connected with described optical sensor, and its outlet side is electrically connected with described luminous component; The utility model on described light fixture or around an optical sensor is set, for detecting output light flux or the luminous intensity of light fixture in real time, and brightness or the luminous flux of luminous component is regulated by control device, realize light fixture with constant luminous flux brightness output, also serve the effect of prolonging service lives of lamps simultaneously.
Description
Technical field
The utility model relates to a kind of light fixture, particularly a kind of light fixture with constant luminous flux.
Background technology
At present, LED common on market or light fixture in the process used, along with the increase of lighting time, due to characteristic or light transparent member etc. aging of luminous component, the luminous flux of lamp or light fixture can progressively decline, and that is, the brightness of lamp or light fixture can reduce along with the increase in useful life.General, the downward trend of the luminous flux of light fixture is negative exponent trend, to such an extent as to does not reach stable result of use in some occasion, so not only can affect normal work and the life of people, also can affect the mood of user.Be normally defined when the luminous flux of lamp or light fixture drops to 70% or 50% of its initial luminous flux, the life-span of this lamp or light fixture also just ends.This defect causes user to need regular replacement lamp or light fixture, considerably increases living cost.
Utility model content
Technical problem to be solved in the utility model there is provided a kind of light fixture, and it is in the whole life cycle of light fixture, and all with the light fixture that constant luminous flux exports, it also has the advantage postponing light fixture useful life.
In order to solve the problems of the technologies described above, the utility model have employed following technical scheme:
There is a light fixture for constant luminous flux, comprising: for regulating the control device of described luminous component output light flux and for sensing the optical sensor of the luminous intensity of its position; The input side of described control device is electrically connected with described optical sensor, and its outlet side is electrically connected with described luminous component.
Wherein, described light fixture also comprises the lamp panel for settling described luminous component, and described optical sensor is arranged on described lamp panel.
Wherein, the shape of described lamp panel is circular or square.
Wherein, the surrounding of described luminous component is provided with lamp housing, and described optical sensor is arranged on inside described lamp housing.
Wherein, be provided with one inside described lamp housing and be in the light groove, described in be in the light the notch of groove towards described luminous component, be in the light in groove described in described optical sensor is arranged on.
Wherein, described lamp housing is that printing opacity or semi transparent material are made.
Wherein, described control device comprises: the Transformer Rectifier circuit be connected with power supply and for regulating the light adjusting circuit of described luminous component brightness or output light flux, described light adjusting circuit is electrically connected with described Transformer Rectifier circuit and described optical sensor respectively, and described light adjusting circuit receives the light intensity signal from described optical sensor.
Wherein, the quantity of described transducer is more than or equal to 1.
Wherein, described optical sensor is active optical sensor or passive optical sensors.
Wherein, described luminous component is LED.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is by the setting of optical sensor and control device, realizes the adjustment to luminous component luminous flux, makes it export a constant luminous flux or maintain constant brightness;
2, illuminate with constant luminous flux because the utility model maintains light fixture, have the advantages that to extend light fixture useful life.
3, the utility model structure is simple, easy for installation.
Accompanying drawing explanation
Fig. 1 is the structure chart with the light fixture of constant luminous flux of the utility model embodiment;
Fig. 2 is the profile with the light fixture of constant luminous flux of the utility model embodiment;
Fig. 3 is the structure chart of the control device in the utility model embodiment;
Fig. 4 is the light fixture with constant luminous flux of the utility model embodiment and the luminous flax curve figure of existing light fixture.
Description of reference numerals
1-optical sensor 2-lamp panel
3-luminous component 4-control device
5-lamp housing 6-light-passing board
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
As depicted in figs. 1 and 2, for a kind of structure chart and profile with the light fixture of constant luminous flux of the utility model embodiment, described light fixture comprises: lamp panel 2, be arranged on luminous component 3 on described lamp panel 2 and control device 4, and described luminous component 3 is electrically connected with described control device 4; Described control device 4 regulates output light flux or the brightness of described luminous component 3; The described light fixture with constant luminous flux also comprises one for sensing the optical sensor 1 of the intensity of illumination of its position; Described optical sensor 1 can be arranged on described light fixture or described adjacent lamp, preferably, described optical sensor 1 is arranged on a position do not affected by external light source, lamp housing 5 can be provided with on described lamp panel 2, what described optical sensor can be arranged on inside described lamp housing 5 one is in the light in groove, described in be in the light the opening of groove towards luminous component 3; Described lamp housing 5 can be made up of printing opacity or semi transparent material; Described lamp housing 5 also can cover and establish a light-passing board 6, prevent falling into of dust, described light-passing board can have astigmatism functions, realizes better radiation response; The shape of described lamp panel 2 can be square or circular, also can be other arbitrary shapes, as in the present embodiment being circle.Optical sensor 1 described in the present embodiment can be active optical sensor or passive optical sensors.
As shown in Figure 3, described control device 4 in the present embodiment comprises: the Transformer Rectifier circuit be connected with power supply and for regulating the light adjusting circuit of described light fixture output light flux, described light adjusting circuit is electrically connected with described Transformer Rectifier circuit and described optical sensor 1 respectively, described light adjusting circuit receives the intensity of illumination signal from described optical sensor 1, process by analysis, regulate the luminous flux of described luminous component, make the luminous flux that it keeps output one constant.In addition when described optical sensor is active sensor, described Transformer Rectifier circuit also will be connected with described optical sensor, to provide power supply.
The light-dimming method with the light fixture of constant luminous flux described in the present embodiment, comprises the following steps:
S1: the luminous intensity at its position place is surveyed in described optical sensor sense 1, and send described light intensity signal to described control device 4;
S2: described control device receives described light intensity signal, and according to the size of described luminous intensity, regulate voltage or the electric current at the two ends of described luminous component 3, thus regulate the output light flux of described luminous component 3, make it export a constant luminous flux.
Wherein, described light adjusting circuit is provided with an initial luminous flux, described initial luminous flux can for described luminous component light first time, the light flux values that the luminous intensity that described optical sensor sense 1 measures is corresponding, preferred described initial luminous flux also can be the 70%-80% of described luminous component nominal light flux.Described light adjusting circuit compensates adjustment according to the output light flux of difference to described luminous component between light flux values corresponding to described light intensity signal and described initial luminous flux; When described transducer is multiple, the luminous intensity average value processing that multiple described optical sensor transmits by described light adjusting circuit, and light flux values corresponding to this average and the output light flux of difference to described luminous component between described initial luminous flux compensate adjustment, described luminous component is made to keep stable luminous flux to export.
As shown in Figure 4, for the light fixture with constant luminous flux of the present embodiment and the luminous flax curve figure of existing light fixture, wherein with existing LED as a comparison, as can be seen from Figure 4, curve a represents the luminous flux attenuation curve of existing LED, along with the growth in the useful life of LED, the luminous flux of existing LED declines gradually from initial value, when output light flux is 50% or 70% of initial luminous flux, is defined as the end of a period of this LED life-span, just can not continues again to employ; Curve b represents the luminous flax curve of the LED in the utility model embodiment, through the mating reaction of optical sensor 1 and light adjusting circuit, compensates, make its luminous flux remain 100% initial luminous flux always to the luminous flux of described LED.Obviously, compared with curve a, embodiment of the present utility model, not only makes LED lamplight flux be in stable initial condition always, simultaneously because luminous flux does not significantly reduce, also makes extend the useful life of LED, decreases living cost.Dash area in addition in figure represent by light sensors to the decline of luminous flux and the compensated part taked, the life-span of whole light fixture depends on possible maximum compensation rate c.As a preferred version, in the present embodiment, the initial luminous flux of LED is the 70%-80% of its nominal light flux, in general, the highlight flux (maximum current that can be born by LED determines) of LED can exceed nominal light flux 20%-30%, therefore, maximum compensation rate c is about 50% of initial luminous flux.The stablizing effect of the luminous flux of the LED in the longer time (light fixture) that can reach like this is more obvious, and life effect is also more obvious.
In sum, the utility model on described light fixture or around an optical sensor is set, for detecting the output light intensity of light fixture in real time, and by the light intensity feedback that the detects control device to light fixture, to regulate its brightness or luminous flux, realize light fixture with constant luminous flux output brightness; Illuminate with constant luminous flux because the utility model maintains light fixture, have the advantages that to extend light fixture useful life, it is simple that the utility model also has structure, feature easy for installation.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection range of the present utility model is defined by the claims.Those skilled in the art can in essence of the present utility model and protection range, and make various amendment or equivalent replacement to the utility model, this amendment or equivalent replacement also should be considered as dropping in protection range of the present utility model.
Claims (10)
1. there is a light fixture for constant luminous flux, comprising: luminous component, it is characterized in that: described light fixture also comprises: for regulating the control device of described luminous component output light flux and for sensing the optical sensor of the luminous intensity of its position; The input side of described control device is electrically connected with described optical sensor, and its outlet side is electrically connected with described luminous component.
2. the light fixture with constant luminous flux according to claim 1, is characterized in that: described light fixture also comprises the lamp panel for settling described luminous component, and described optical sensor is arranged on described lamp panel.
3. the light fixture with constant luminous flux according to claim 2, is characterized in that: the shape of described lamp panel is for circular or square.
4. the light fixture with constant luminous flux according to claim 1, it is characterized in that: the surrounding of described luminous component is provided with lamp housing, described optical sensor is arranged on inside described lamp housing.
5. the light fixture with constant luminous flux according to claim 4, is characterized in that: be provided with one inside described lamp housing and be in the light groove, described in be in the light the notch of groove towards described luminous component, be in the light in groove described in described optical sensor is arranged on.
6. the light fixture with constant luminous flux according to claim 4, is characterized in that: described lamp housing is that printing opacity or semi transparent material are made.
7. the light fixture with constant luminous flux according to claim 1, it is characterized in that: described control device comprises: the Transformer Rectifier circuit be connected with power supply and for regulating the light adjusting circuit of described luminous component brightness or output light flux, described light adjusting circuit is electrically connected with described Transformer Rectifier circuit and described optical sensor respectively, and described light adjusting circuit receives the light intensity signal from described optical sensor.
8. the light fixture with constant luminous flux according to claim 1, is characterized in that: the quantity of described transducer is more than or equal to 1.
9. the light fixture with constant luminous flux according to claim 1, is characterized in that: described optical sensor is active optical sensor or passive optical sensors.
10. the light fixture with constant luminous flux according to claim 1, is characterized in that: described luminous component is LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244966.XU CN204578837U (en) | 2015-04-21 | 2015-04-21 | A kind of light fixture with constant luminous flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244966.XU CN204578837U (en) | 2015-04-21 | 2015-04-21 | A kind of light fixture with constant luminous flux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204578837U true CN204578837U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520244966.XU Active CN204578837U (en) | 2015-04-21 | 2015-04-21 | A kind of light fixture with constant luminous flux |
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| CN (1) | CN204578837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135235A (en) * | 2015-07-29 | 2015-12-09 | 江苏达伦电子股份有限公司 | LED lamp with automatic brightness correction function |
-
2015
- 2015-04-21 CN CN201520244966.XU patent/CN204578837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135235A (en) * | 2015-07-29 | 2015-12-09 | 江苏达伦电子股份有限公司 | LED lamp with automatic brightness correction function |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |