CN202511022U - Light-emitting diode (LED) lamp - Google Patents
Light-emitting diode (LED) lamp Download PDFInfo
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- CN202511022U CN202511022U CN2011205125753U CN201120512575U CN202511022U CN 202511022 U CN202511022 U CN 202511022U CN 2011205125753 U CN2011205125753 U CN 2011205125753U CN 201120512575 U CN201120512575 U CN 201120512575U CN 202511022 U CN202511022 U CN 202511022U
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Abstract
The utility model discloses a light-emitting diode (LED) lamp. The LED lamp comprises at least one LED light source and a reflecting cover, wherein the at least one LED light source is used for emitting light rays; the reflecting cover comprises a plurality of reflecting surfaces; each reflecting surface reflects the light rays emitted by the LED light source to each corresponding lighting region; and each lighting region has the same illumination. The LED lamp can greatly improve the illumination direction of the LED lamp, can effectively eliminate the glare phenomenon and can realize uniform illumination of each lighting region.
Description
Technical field
The utility model relates to field of illumination lamp technology, relates in particular to a kind of light-emitting diode (LED) lamp.
Background technology
LED (Light Emitting Diode, light emitting diode) is a kind of solid-state semiconductor devices, and it can directly be converted into light to electricity.It has changed the luminous and luminous principle of electricity-saving lamp tricolor powder of incandescent lamp tungsten filament, and adopts electroluminescence.Led light source has the conventional light source incomparable advantage: in the service life of (1) overlength, under suitable supply voltage and electric current, service life was up to 60,000 to 100,000 hours, and is longer more than 10 times than the conventional light source life-span; (2) environmental protection does not have mercury in the light source, do not pollute, and does not have ultraviolet ray and infrared ray in the spectrum, has not both had heat, does not have radiation yet, and dazzle is little, and cold light source can safe touch, belongs to typical green illumination light source; (3) the LED power consumption is quite low, super low-power consumption, and the equal illumination effect is than conventional light source energy-conservation nearly 80%; (4) volume is little, and is sturdy and durable, and LED is encapsulated in the epoxy resin the inside fully, and is all firmer than bulb and fluorescent tube; (5) the led light source colour rendering is good, and colour rendering index is greater than 70.
Present LED lighting mainly contains two kinds of ways of realization: a kind of is that led light source is positioned in the conventional lamp; A kind ofly in addition evenly arrange, adopt lens directly to carry out luminous intensity distribution for led light source.But these two kinds of forms still fail to overcome the defective of traditional LED lighting.These defectives comprise:
Direction of illumination property is poor, and irradiation area is not obvious, that is to say to have shone the place that need not shine.Under the situation of identical total light flux, caused effective coverage, ground illumination to reduce.
Uneven illumination is even, causes closely bright, remote dark phenomenon.Distance is than the illumination in territory, far field alignment request not up to standard, or the illumination in close together zone is far above standard-required.Because illumination patterns is inhomogeneous, reach lighting criteria for making the dark space between road both sides and adjacent two lamps, so design the time has to adopt light source more high-power, more high light flux satisfying the illumination requirement to the dark space, thereby cause waste of electric energy.
If a dazzling luminous point is arranged in the visual field, will influence visual effect, make human eye uncomfortable.When light fixture light intensity peak elevation angle during near 70 °, belong to half light chopping light fixture, glare phenomenon is serious.
The utility model content
The utility model embodiment provides a kind of light-emitting diode (LED) lamp, and in order to the direction of illumination property of improving the LED light fixture and eliminate glare phenomenon, this LED light fixture comprises:
At least one led light source is used to emit beam;
Reflector comprises some reflectings surface, and the light that each reflecting surface sends led light source reflexes to each corresponding field of illumination.
Preferable, said LED light fixture may further include:
Collector lens is installed on the front end of led light source, and the light that led light source sends is carrying out polymerization through behind the collector lens;
Said reflector is installed on the front end of collector lens, and each reflecting surface is further used for the light after the polymerization is reflexed to each corresponding field of illumination.
Preferable, the light that the beam angle 120 that said collector lens can be further used for that led light source is sent is spent is polymerized to the light of beam angle 10 degree.
Preferable, when led light source quantity reduced, the residue led light source can adopt high-power LED light source.
Preferable, each field of illumination illumination is identical.
Among the utility model embodiment; The light that some reflectings surface of reflector send at least one led light source reflexes to each corresponding field of illumination, can significantly improve the direction of illumination property of LED light fixture, makes irradiation area obvious; Needn't shine the place that need not shine; With respect to existing LED light fixture, under the situation of identical total light flux, effective coverage, ground illumination increases.Simultaneously, can make the light intensity peak elevation angle be about 60 °, the light intensity on 80 ° and 90 ° directions of elevation angle is no more than 30cd/1000lm and 10cd/1000lm, belongs to the light chopping light fixture, thereby eliminates glare phenomenon effectively.
Also adopt the collector lens that is installed on the led light source front end that the light that led light source sends is carried out polymerization among the utility model embodiment; The light of each reflecting surface of reflector after with polymerization reflexes to each corresponding field of illumination; Thereby further improve the direction of illumination property of LED light fixture, accurately control the reflection position of light, make outside the effective lighting zone luminous flux very little in the field of illumination; Avoid the luminous energy wasting phenomenon, and further eliminate glare phenomenon.
Among the utility model embodiment, when led light source quantity reduced, the residue led light source can adopt high-power LED light source, was guaranteeing can effectively to reduce led light source quantity under the light distribution effect prerequisite, thereby between high light efficiency and low cost, selected easily to use.
Among the utility model embodiment, each field of illumination illumination is identical, closely bright, remote dark phenomenon can not occur, can realize the even illumination of each field of illumination, with respect to existing LED light fixture, can avoid causing waste of electric energy.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of LED light fixture among the utility model embodiment;
Fig. 2 is the process chart of LED lamp lighting method among the utility model embodiment;
Fig. 3 is the sketch map of the instantiation of LED light fixture among the utility model embodiment;
Fig. 4 is for carrying out the sketch map that grid is divided to effective lighting zone, ground among the utility model embodiment;
Fig. 5 divides subregional sketch map again for net region among the utility model embodiment;
Fig. 6 is the distribution sketch map of single LEDs luminous flux of light source among the utility model embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer, the utility model embodiment is explained further details below in conjunction with accompanying drawing.At this, illustrative examples of the utility model and explanation thereof are used to explain the utility model, but not as the qualification to the utility model.
Utility model people notices: existing LED light fixture technology fails to make full use of the strong characteristics of LED light directionality, fails the direction of LED light is controlled rationally and effectively.For the direction of illumination property of improving the LED light fixture and eliminate glare phenomenon, the utility model embodiment provides a kind of LED light fixture, and is as shown in Figure 1, and this LED light fixture can comprise:
At least one led light source is used to emit beam;
Reflector comprises some reflectings surface, and the light that each reflecting surface sends led light source reflexes to each corresponding field of illumination.Led light source is installed on the substrate among Fig. 1, and is not shown.
In the enforcement; The light that some reflectings surface of LED light fixture reflector send at least one led light source reflexes to each corresponding field of illumination, can significantly improve the direction of illumination property of LED light fixture, makes irradiation area obvious; Needn't shine the place that need not shine; With respect to existing LED light fixture, under the situation of identical total light flux, effective coverage, ground illumination increases.Simultaneously, can make the light intensity peak elevation angle be about 60 °, the light intensity on 80 ° and 90 ° directions of elevation angle is no more than 30cd/1000lm and 10cd/1000lm, belongs to the light chopping light fixture, thereby eliminates glare phenomenon effectively.
As shown in Figure 1, during practical implementation, the LED light fixture among the utility model embodiment can further include:
Collector lens is installed on the front end of led light source, and the light that led light source sends is carrying out polymerization through behind the collector lens;
Said reflector is installed on the front end of collector lens, and each reflecting surface is further used for the light after the polymerization is reflexed to each corresponding field of illumination.
In the enforcement; The collector lens that is installed on the led light source front end carries out polymerization with the light that led light source sends, and the light of each reflecting surface of reflector after with polymerization reflexes to each corresponding field of illumination, can further improve the direction of illumination property of LED light fixture; Accurately control light is at the reflection position of field of illumination; Make outside the effective lighting zone luminous flux very little, avoid the luminous energy wasting phenomenon, and further eliminate glare phenomenon.
During practical implementation, the light that the beam angle 120 that collector lens for example can be further used for that led light source is sent is spent is polymerized to the light of beam angle 10 degree.
During practical implementation, when led light source quantity reduced, the residue led light source can adopt high-power LED light source.When reducing certain several led light source, improve all the other led light source power, increase single LEDs luminous flux of light source, can keep effective coverage, ground average illumination constant, uniformity of illuminance is constant.Guaranteeing effectively to reduce led light source quantity under the light distribution effect prerequisite, thereby between high light efficiency and low cost, selecting easily to use.
During practical implementation, each field of illumination illumination is identical, closely bright, remote dark phenomenon can not occur, can realize the even illumination of each field of illumination, with respect to existing LED light fixture, can avoid causing waste of electric energy.
As shown in Figure 2, the LED lamp lighting method can comprise among the utility model embodiment:
The light that some reflectings surface of step 202, reflector send led light source reflexes to each corresponding field of illumination.
During practical implementation, may further include:
The collector lens that is installed on the led light source front end carries out polymerization with the light that led light source sends;
Each reflecting surface of said reflector further reflexes to each corresponding field of illumination with the light after the polymerization.
During practical implementation, the light that the beam angle 120 that said collector lens can further send led light source is spent is polymerized to the light of beam angle 10 degree.
During practical implementation, may further include:
When led light source quantity reduced, the residue led light source adopted high-power LED light source.When reducing certain several led light source, improve all the other led light source power, increase single LEDs luminous flux of light source, can keep effective coverage, ground average illumination constant, uniformity of illuminance is constant.
During practical implementation, each field of illumination illumination is identical.
Illustrate the practical implementation of the LED light fixture of the utility model embodiment below.In this example, suppose that LED lamp installation height is a H rice, be used for road lighting.
Referring to Fig. 3, the illumination zone of street lamp is along road length direction 3.0H rice, and width 1.0H rice, LED light fixture is in road length direction left-right symmetric, the A place be positioned at the LED light fixture under, the B place is positioned on the road length direction apart from the 1.5H of A place rice.Because square being directly proportional of the attenuation degree of luminous flux and irradiation distance, under same exposure intensity, the light source center that leaves street lamp is far away more, and road illumination is more little.A place and light source center distance are H rice, and then B place and light source center distance is a 1.8H rice.The illumination of supposing the A place is 1lx, and then the illumination at B place is 0.3lx.In like manner can calculate the illumination at any place in the illumination zone of LED light fixture.In this example, for making A place and B place same illumination is arranged, the luminous flux of light source that reflexes to the B place just need equal to reflex to 3 times of luminous flux of light source at A place.In order to make the light flux distribution in this illumination zone even; Need promptly on the LED light fixture, the led light source luminous flux be distributed according to penetrating distance at light source; And reflex to the appointed area along certain orientation, thereby control light effectively and equably shines desired zone.
In order to satisfy above-mentioned requirement, in this example the LED light fixture according to the directional characteristic of led light source, through the first time collector lens carry out the light polymerization, change the emission angle of light source, through the light of reflection control for the second time, realize desired control light effect again.Led light source carries out the light polymerization through collector lens; The lighting angle of led light source converges gathering, is about 120 degree, after collector lens like the beam angle of led light source itself; Beam angle can draw in about 10 degree; Irradiate light through the reflection of reflector reflecting surface, illuminates the effective coverage on ground to reflector.
In order to make ground brightness even, need the luminous flux of reasonable distribution led light source.As shown in Figure 4; Grid is carried out in effective lighting zone, ground divide, number of grid is E (E is an integer), and the luminous flux of all light sources is all assigned in E the net region; Because square being directly proportional of the decay of luminous flux and distance can calculate the regional needed luminous flux of light source of arbitrary mess thus.Far away more from the light source center distance, the net region area is more little.Because the A place is positioned under the LED light fixture, is the center with the A point, the have a few in the net region is roughly the same with the distance that A is ordered.With net region 1 is example, supposes that led light source quantity is N (N is an integer), and the luminous flux of single LEDs light source is that (establish T is integer to T; Unit is lm, and single LEDs light source power is 1W), as shown in Figure 5; Net region 1 needed led light source quantity is N/E; Net region 1 is divided into Z subregion, and the luminous flux of all led light sources that net region 1 is corresponding all is divided into Z part, and Z part luminous flux is a corresponding Z subregion respectively; Every part of subregion all receives the partial luminous flux of N/E led light source; Calculate the distance of Z subregion and light source center, calculate Z the needed luminous flux in subregion, confirm the percentage of every part of shared single LEDs luminous flux of light source of luminous flux of light source.Because Z subregion and A point distance are roughly the same, therefore the percentage of every part of shared single LEDs light source total light flux of luminous flux of light source is comparatively approaching.Fig. 6 is the distribution sketch map of single LEDs luminous flux of light source, and the center of circle is the light center of single LEDs light source, according to the led light source lighting angle; Every part of zone also can be divided into three parts, is respectively zone (1), (2), (3), and zone (1) is each led light source directional light; Zone (2) is each led light source angular light; Lighting angle is 2 degree, and zone (3) is each led light source angular light, and lighting angle is 4 degree.According to the needed luminous flux of light source of ground arbitrary region, the quantity and the luminous flux of the led light source that distribution needs.
Even for the brightness that realizes the effective coverage, ground, accurately control light through the reflector reflecting surface again in this example.As shown in Figure 1, suppose that reflector is made up of Q (Q is an integer) piece reflecting surface, Q equals the umber that the led light source number multiply by every LEDs light source.The reflector reflector shape has been shown among Fig. 1, and the irradiate light that every part of led light source comprises through the reflection of reflecting surface, illuminates ground region to corresponding reflector reflecting surface.According to the needed luminous flux of light source of the arbitrary region on ground; The quantity and the luminous flux that distribute led light source after the polymerization of the light that is comprised process collector lens, shine the reflecting surface of reflector; Reflection through the reflector reflecting surface; Accurately control light is at the reflection position on ground, and light flux distribution is even in the effective coverage, ground, and luminous flux is very little outside the effective coverage.Effective coverage, ground uniformity of illuminance is high, avoids the luminous energy wasting phenomenon.Simultaneously, the light intensity peak elevation angle can be 60 °, and the light intensity on 80 ° and 90 ° directions of elevation angle is no more than 30cd/1000lm and 10cd/1000lm, belongs to the light chopping light fixture, eliminates glare phenomenon effectively.
Demand for realizing reducing cost also can reduce led light source quantity in this example, keeps illuminance of ground and uniformity of illuminance constant simultaneously, thereby optimizes the allocative decision of led light source and luminous flux.With net region 1 is example, and the light of N/E led light source illuminates net region 1 through collector lens polymerization and reflection control light; As shown in Figure 5, N/E led light source shines certain subregion according to equal ratio, when reducing certain several led light source; Net region 1 all subregion illumination reduce in proportion; Uniformity of illuminance remains unchanged, and when improving all the other led light source power, increases single LEDs luminous flux of light source; Then net region 1 all subregional average illuminations are constant, and uniformity of illuminance is constant.According to same design theory, reduce led light source quantity, any subregion, ground illumination reduces in proportion, and uniformity of illuminance is constant, through increasing single LEDs light source power, can keep effective coverage, ground uniformity of illuminance constant, and average illumination is constant.
In sum; The LED light fixture of the utility model embodiment utilizes the control light design of reflector owing to do not have the direct irradiation and the jump in brightness of light, significantly improves the direction of illumination property of LED light fixture; And eliminated irrational glare phenomenon, also can make uniformity of illuminance very high.Simultaneously, distribute based on luminous flux of light source, the luminous flux that the effective coverage, ground receives is a plurality of led light source stacks, guarantees can effectively reduce the quantity of led light source under the prerequisite of light distribution effect, between low-cost and high light efficiency, selects to use.The LED illuminance of lamp uniformity of the utility model embodiment is high, does not have unreasonable dazzle, satisfies the result of use of photoenvironment, in indoor and outdoor illumination, is with a wide range of applications.
Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; And be not used in the protection domain that limits the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. a light-emitting diode (LED) lamp is characterized in that, comprising:
At least one led light source is used to emit beam;
Reflector comprises some reflectings surface, and the light that each reflecting surface sends led light source reflexes to each corresponding field of illumination;
Collector lens is installed on the front end of led light source, and the light that led light source sends is carrying out polymerization through behind the collector lens;
Said reflector is installed on the front end of collector lens, and each reflecting surface is further used for the light after the polymerization is reflexed to each corresponding field of illumination;
The light that the beam angle 120 that said collector lens is further used for that led light source is sent is spent is polymerized to the light of beam angle 10 degree.
2. LED light fixture as claimed in claim 1 is characterized in that, when led light source quantity reduced, the residue led light source adopted high-power LED light source.
3. like each described LED light fixture of claim 1 to 2, it is characterized in that each field of illumination illumination is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205125753U CN202511022U (en) | 2011-12-09 | 2011-12-09 | Light-emitting diode (LED) lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205125753U CN202511022U (en) | 2011-12-09 | 2011-12-09 | Light-emitting diode (LED) lamp |
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| Publication Number | Publication Date |
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| CN202511022U true CN202511022U (en) | 2012-10-31 |
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| CN2011205125753U Expired - Fee Related CN202511022U (en) | 2011-12-09 | 2011-12-09 | Light-emitting diode (LED) lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162107A (en) * | 2011-12-09 | 2013-06-19 | 北京通力盛达节能设备股份有限公司 | Light-emitting diode (LED) lamp and lighting method thereof |
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2011
- 2011-12-09 CN CN2011205125753U patent/CN202511022U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162107A (en) * | 2011-12-09 | 2013-06-19 | 北京通力盛达节能设备股份有限公司 | Light-emitting diode (LED) lamp and lighting method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Light-emitting diode (LED) lamp and lighting method thereof Effective date of registration: 20150618 Granted publication date: 20121031 Pledgee: Beijing technology business factoring Ltd. Pledgor: Beijing Tonlier Energy-saving LLC. Registration number: 2015990000483 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20161209 |