CN102954385A - Anti-dazzle high-efficiency LED (Light Emitting Diode) lamp - Google Patents
Anti-dazzle high-efficiency LED (Light Emitting Diode) lamp Download PDFInfo
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- CN102954385A CN102954385A CN2012105003026A CN201210500302A CN102954385A CN 102954385 A CN102954385 A CN 102954385A CN 2012105003026 A CN2012105003026 A CN 2012105003026A CN 201210500302 A CN201210500302 A CN 201210500302A CN 102954385 A CN102954385 A CN 102954385A
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- led lamp
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Abstract
The invention discloses an anti-dazzle high-efficiency LED (Light Emitting Diode) lamp which comprises an LED light source and a lamp back plate, wherein a diffuse reflection layer is arranged on the inner surface of the lamp back plate; an arc top surface, a first inner lateral surface and a second inner lateral surface are arranged on the lamp back plate; the first inner lateral surface and the second inner lateral surface are respectively connected with two end parts of the arc top surface; a first LED lamp strip and a second LED lamp strip are arranged on the LED light source; the first LED lamp strip is fixedly arranged on the first inner lateral surface; the second LED lamp strip is fixedly arranged on the second inner lateral surface; in addition, a mirror surface reflector is fixedly connected to the inner lateral surface by corresponding to each LED lamp strip; and the LED lamp strip is arranged between the arc top surface and the mirror surface reflector corresponding to the arc top surface. The anti-dazzle high-efficiency LED lamp disclosed by the invention has the advantages ofs less optical loss, high utilization rate of light and uniformity in brightness in the use process; and meanwhile, the dazzle of the light source is avoided.
Description
Technical field
The present invention relates to lighting device, in particular a kind of anti-dazzle efficient LED light fixture.
Background technology
At present, the brightness of LED along with the raising of luminous flux in continuous increase, brightness has exceeded 1000000cd/m2, and this brightness value has exceeded the accommodation (10-4-106cd/m2) of human eye brightness sensation, just has the vision tingling sensation if people directly see led light source.
As shown in Figure 1, the too high scheme of current solution LED lamp brightness is that the led light source 2 that will be fixed on the substrate 3 stashes, by high reflectance diffuse-reflective material 1 its light that sends being carried out Multi reflection mixes rear from the casual emitting surface outgoing of light fixture, still this scheme following points defective:
1), all be diffuse-reflective material in the lamp chamber, even the reflectivity of diffuse-reflective material is high again, infinite reflection repeatedly is the large luminous efficiency of high attenuation light fixture also;
2), the distance of LED and diffuse surface is too near, irreflexive light is reflected onto on LED or the LED aluminium base and is absorbed;
3), can be too high by brightness after the LED irradiation near the reflecting surface of LED side, when seeing to light fixture from the light fixture outside, have two bright fringes to be distributed in the light fixture inboard, reduce light fixture overall brightness uniformity effect.
4), this is luminous as intrinsic lambertain type because of LED, no matter θ is much, shines on the reflector to such an extent that light distributes and all can not reach the higher uniformity.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of in use optical loss few, light utilization efficiency is high, and brightness is even, and has avoided simultaneously the anti-dazzle efficient LED light fixture of light source glare problem.
Technical scheme of the present invention is as follows: a kind of anti-dazzle efficient LED light fixture, comprise that led light source and surface are provided with the light fixture backboard of diffuse reflector, the first medial surface and the second medial surface that described light fixture backboard arranges an arc top surface and links to each other with described arc top surface both ends respectively; Described led light source arranges a LED lamp bar and the 2nd LED lamp bar, and a described LED lamp bar is fixedly installed on described the first medial surface, and described the 2nd LED lamp bar is fixedly installed on described the second medial surface; And, corresponding each LED lamp bar, its place medial surface also is fixedly connected with a specular reflector, and described LED lamp bar is arranged between the described arc top surface specular reflector corresponding with it.
Be applied to technique scheme, in the described LED light fixture, the just relative setting of light emission direction of a described LED lamp bar and described the 2nd LED lamp bar.
Be applied to each technique scheme, in the described LED light fixture, the connection angle of each specular reflector LED lamp corresponding to it bar place medial surface is set to a, wherein, and 0＜a≤90 degree.
Be applied to each technique scheme, in the described LED light fixture, described specular reflector is set to the bar shaped specular reflector.
Be applied to each technique scheme, in the described LED light fixture, it also arranges the two end cap that is fixedly connected with the both ends of described light fixture backboard respectively, and the inner surface of each end cap also arranges diffuse reflector.
Adopt such scheme, the design principle of the present invention by adopting mirror-reflection and diffuse reflection combination reduced the dazzle harm of high-brightness LED light source to human eye with the outgoing after changing into uniform area source of LED spot light; And, by led light source being fixedly installed on two medial surfaces of light fixture backboard, each LED is luminous towards LED light fixture medial surface, and, medial surface also is fixedly connected with a specular reflector at LED lamp bar place, described LED lamp bar is arranged between the described arc top surface specular reflector corresponding with it, the light on LED lamp bar top is directly according to the diffuse reflector to the light fixture backboard, after reflecting through the minute surface transmitter, the light of LED lamp bar bottom shines the diffuse reflector to the light fixture backboard, the diffuse reflector of last again process light fixture backboard reflexes to light-emitting window, reduced the optical loss of Multi reflection, light utilization efficiency is high, and brightness is even, and, the light fixture backboard, and the overall structure of specular reflector etc. also has the effect of blocking to LED lamp bar, can directly not see source light during eye-observation LED light fixture, avoided LED to deliver directly the harm of light dazzle.
Description of drawings
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present invention.
Fig. 3 is schematic cross-section of the present invention.
Fig. 4 a is led light source top radiation direction schematic diagram among the present invention.
Fig. 4 b is led light source bottom radiation direction schematic diagram among the present invention.
Fig. 4 c is led light source overall light direction schematic diagram among the present invention.
Fig. 5 is the schematic diagram of width luminance uniformity of the present invention.
Fig. 6 is distribution curve flux figure of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present embodiment provides a kind of anti-dazzle efficient LED light fixture, and in use optical loss is few for described LED light fixture, and light utilization efficiency is high, and lamp brightness is even, and has avoided simultaneously the light source glare problem.
Wherein, as shown in Figure 2, described LED light fixture comprises that led light source and inner surface are provided with the light fixture backboard 104 of diffuse reflector, diffuse reflector can pass through plated film, smear diffuse-reflective material, or the mode such as fixing is arranged on the inner surface of described light fixture backboard, wherein, described light fixture backboard 104 arranges an arc top surface 102, and the first medial surface 101 and the second medial surface 109 that link to each other with described arc top surface 102 both ends respectively, arc top surface 102, the surface of the first medial surface 101 and the second medial surface 109 all arranges diffuse reflector, in use, the light that the LED light fixture sends reflexes to the light-emitting window of LED light fixture through the diffuse reflector of light fixture backboard 104 inner surface settings, irradiate the outside by light-emitting window again.
And, described led light source arranges a LED lamp bar 103 and the 2nd LED lamp bar 107, the one LED lamp bar 103 and the 2nd LED lamp bar 107 are the linear led light source, each LED lamp bar comprises some LED, each LED is linear and arranges, and, a described LED lamp bar 103 is fixed on described the first medial surface 101, described the 2nd LED lamp bar 107 is fixed on described the second medial surface 109, preferably, the just relative setting of light emission direction of a described LED lamp bar and described the 2nd LED lamp bar, be that described the first medial surface can be set to two relative medial surfaces with described the second medial surface, the light-emitting area of a described LED lamp bar and described the 2nd LED lamp bar is oppositely arranged, thereby can make the just relative setting of light emission direction of a described LED lamp bar and described the 2nd LED lamp bar, the light on a described LED lamp bar and described the 2nd LED lamp bar top can direct irradiation to the diffuse reflector of arc top surface, reduce the Multi reflection optical loss, optical efficiency is high.
And, corresponding each LED lamp bar, its place medial surface also is fixedly connected with a specular reflector, an i.e. corresponding LED lamp bar 103, the first specular reflector 108, the first specular reflectors 108 also are set also are fixedly connected with the first medial surface, namely the first medial surface one end is connected with arc top surface, the other end connects the first specular reflector 108, the one LED lamp bars 103 and is arranged between described arc top surface and the first specular reflector 108; And, corresponding the 2nd LED lamp bar 107, the second specular reflector 106 also is set, the second specular reflector 106 also is fixedly connected with the second medial surface, namely the second medial surface one end is connected with arc top surface, the other end connects the second specular reflector 106, the two LED lamp bars 107 and is arranged between described arc top surface and the second specular reflector 106; Specular reflector can be comprised of substrate and the specular layer that is arranged on substrate surface, and wherein, specular layer can cross plated film, smear the surface that specular reflective material or the mode such as fixing are arranged on substrate.So arrange, the light of each LED lamp bar bottom is reflexed in the diffuse reflector of arc top surface by its corresponding specular reflector that arranges, and the light of reflection irradiates the outside through the diffuse reflector diffuse reflection of light fixture backboard arc top surface to the light-emitting window of LED light fixture.
So, as shown in Figure 3, light fixture backboard 104 arranges diffuse surface 1041, diffuse surface 1042 and diffuse surface 1043, the first specular reflector 108 arranges mirror reflection surface 1081, the second specular reflector 106 arranges mirror reflection surface 1061, and the LED light fixture also arranges diffuse surface 1062 and diffuse surface 1082.So, the LED light fixture is when luminous, the radiation direction on LED top is shown in Fig. 4 a, the light direct irradiation on each LED lamp bar top is to the diffuse reflector of light fixture backboard 104 arc top surfaces, and, as described in Fig. 4 b, the light of each LED lamp bar bottom reflexes on the diffuse reflector of light fixture backboard 104 arc top surfaces through specular reflector 108; And shown in Fig. 4 c, direct irradiation is at diffuse reflector or reflex to light on the diffuse reflector after diffuse reflector reflection, irradiates the outside by LED light fixture light-emitting window 401, uses for illumination.
Wherein, each specular reflector can be set to the bar shaped specular reflector, bar shaped specular reflector and its corresponding corresponding setting of LED lamp bar, thereby can guarantee that the light that LED lamp bar shines its underpart can be reflexed in the diffuse reflector of arc top surface fully by the bar shaped specular reflector, reflection efficiency is high.
And, the overall structure of light fixture backboard 104, the first specular reflector 108, the second specular reflector 106 has the effect of blocking to a LED lamp bar and the 2nd LED lamp bar, by this structure is set, can make the light fixture user at arbitrarily angled each LED that all can't see inside in the LED light fixture outside, be that each LED is hidden, avoided the light source glare problem of LED light fixture.
Perhaps, the side at each specular reflector LED lamp corresponding to it bar place is connected and fixed, be that specular reflector 108 and the first medial surface 101 are connected and fixed, specular reflector 106 and the second medial surface 109 are connected and fixed, and, its connection angle is set to a, wherein, 0＜a≤90 degree, be that relative its corresponding LED lamp bar of specular reflector has an angle of inclination, by the size setting of its connection angle a, can effectively control the distribution of each LED lamp bar bottom minute light energy, so that it is even to be reflected into the intensity of illumination distribution that is mapped on the arc top surface diffuse reflector, wherein, as shown in Figure 5, because the reflectivity of arc top surface diffuse reflector is identical, so the light luminance of arc top surface is also identical, each light is through the diffuse reflection of arc top surface diffuse reflector, finally distributing with lambert's type light transmits the outside, when seeing to the LED light fixture from LED light fixture outside, and the brightness of inner surface uniformity of LED light fixture.
Perhaps, end cap 105 and end cap 110 also are set, end cap 105 is fixedly connected with the both ends of described light fixture backboard respectively with end cap 110, and, the inner surface of end cap 105 and end cap 110 also arranges diffuse reflector, thereby irradiate the outside after making the light diffuse reflection through end cap 105 and end cap 110, light utilization efficiency is higher.
So, as shown in Figure 6, by each led light source being arranged on the medial surface of light fixture backboard, make led light source far away apart from the diffuse reflector surface distance of arc top surface, the light of led light source bottom and by specular reflector control ray axis to, can effectively reduce the light Multi reflection of LED light fixture inner chamber, reduce the optical loss of light fixture, improve the efficient of light fixture.
Be preferred embodiment of the present invention only below, be not limited to the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. anti-dazzle efficient LED light fixture comprises that led light source and inner surface are provided with the light fixture backboard of diffuse reflector, is characterized in that:
The first medial surface and the second medial surface that described light fixture backboard arranges an arc top surface and links to each other with described arc top surface both ends respectively;
Described led light source arranges a LED lamp bar and the 2nd LED lamp bar, and a described LED lamp bar is fixedly installed on described the first medial surface, and described the 2nd LED lamp bar is fixedly installed on described the second medial surface;
And, corresponding each LED lamp bar, its place medial surface also is fixedly connected with a specular reflector, and described LED lamp bar is arranged between the described arc top surface specular reflector corresponding with it.
2. LED light fixture according to claim 1 is characterized in that, the just relative setting of light emission direction of a described LED lamp bar and described the 2nd LED lamp bar.
3. LED light fixture according to claim 1 is characterized in that, the connection angle of each specular reflector LED lamp corresponding to it bar place medial surface is set to a, wherein, and 0＜a≤90 degree.
4. LED light fixture according to claim 3 is characterized in that, described specular reflector is set to the bar shaped specular reflector.
5. LED light fixture according to claim 1 is characterized in that, it also arranges the two end cap that is fixedly connected with the both ends of described light fixture backboard respectively, and the inner surface of each end cap also arranges diffuse reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105003026A CN102954385A (en) | 2012-11-30 | 2012-11-30 | Anti-dazzle high-efficiency LED (Light Emitting Diode) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105003026A CN102954385A (en) | 2012-11-30 | 2012-11-30 | Anti-dazzle high-efficiency LED (Light Emitting Diode) lamp |
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| CN102954385A true CN102954385A (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105003026A Pending CN102954385A (en) | 2012-11-30 | 2012-11-30 | Anti-dazzle high-efficiency LED (Light Emitting Diode) lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919074A (en) * | 2017-12-05 | 2018-04-17 | 浙江华上电子科技有限公司 | A kind of advertising lamp box for including diffusing reflection device |
Citations (5)
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| CN101446392A (en) * | 2008-12-30 | 2009-06-03 | 史杰 | LED light source module |
| CN101681059A (en) * | 2007-05-29 | 2010-03-24 | 皇家飞利浦电子股份有限公司 | Illumination system, luminaire and backlighting unit |
| CN201462551U (en) * | 2009-02-26 | 2010-05-12 | 上虞菁华背光源有限公司 | Diffuse reflection desk lamp adopting fluorescent lamp or LED light source |
| CN201475683U (en) * | 2009-07-31 | 2010-05-19 | 深圳格林照明技术有限公司 | Anti-glaring high-brightness LED fluorescent lamp |
| CN202511050U (en) * | 2012-03-13 | 2012-10-31 | 苏州东亚欣业节能照明有限公司 | Lamp |
-
2012
- 2012-11-30 CN CN2012105003026A patent/CN102954385A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101681059A (en) * | 2007-05-29 | 2010-03-24 | 皇家飞利浦电子股份有限公司 | Illumination system, luminaire and backlighting unit |
| CN101446392A (en) * | 2008-12-30 | 2009-06-03 | 史杰 | LED light source module |
| CN201462551U (en) * | 2009-02-26 | 2010-05-12 | 上虞菁华背光源有限公司 | Diffuse reflection desk lamp adopting fluorescent lamp or LED light source |
| CN201475683U (en) * | 2009-07-31 | 2010-05-19 | 深圳格林照明技术有限公司 | Anti-glaring high-brightness LED fluorescent lamp |
| CN202511050U (en) * | 2012-03-13 | 2012-10-31 | 苏州东亚欣业节能照明有限公司 | Lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919074A (en) * | 2017-12-05 | 2018-04-17 | 浙江华上电子科技有限公司 | A kind of advertising lamp box for including diffusing reflection device |
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Application publication date: 20130306 |