CN102620240A - Rectangular light distribution reflector and LED (light-emitting diode) lamp - Google Patents
Rectangular light distribution reflector and LED (light-emitting diode) lamp Download PDFInfo
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- CN102620240A CN102620240A CN201110028584XA CN201110028584A CN102620240A CN 102620240 A CN102620240 A CN 102620240A CN 201110028584X A CN201110028584X A CN 201110028584XA CN 201110028584 A CN201110028584 A CN 201110028584A CN 102620240 A CN102620240 A CN 102620240A
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- light source
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- intensity distribution
- luminous intensity
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Abstract
The invention discloses a rectangular light distribution reflector and an LED (light-emitting diode) lamp. The rectangular light distribution reflector comprises a light source port arranged corresponding to a light source and a light-emitting port arranged corresponding to a light-emitting position, wherein the light source port and the light-emitting port are rectangular and are enclosed by two first reflection surfaces and two second reflection surfaces, which are oppositely arranged and symmetrical, the first reflection surfaces and the second reflection surfaces are stretched surfaces and respectively comprise first stretched buses and second stretched buses, the first stretched buses and the second stretched buses are multi-section lines positioned on the same plane and respectively comprise six line sections which are in head-to-tail connection, the included angle between the connection lines from the two ends of each line section to the geometric center of the light source port is 8-12 degrees, and the lengths of the six line sections are sequentially increased from the light source port to the light-emitting port. Compared with the prior art, the sizes of the light distribution reflector and LED lamp disclosed by the invention can be greatly reduced.
Description
Technical field
The present invention relates to LED (Light Emitting Diode, light emitting diode) technical field of lamps, more particularly, relate to a kind of rectangle luminous intensity distribution reflector and LED light fixture.
Background technology
Along with developing rapidly of high-power LED lamp, the LED light fixture becomes the focus of being paid close attention in recent years with its low consumption, characteristic such as durable, and the light-configuration mode of LED light fixture is to the light efficiency important influence of light fixture.With the LED street lamp is example, and the luminous intensity distribution of LED street lamp in the prior art mostly adopts special LED lens luminous intensity distribution.For this mode, because the LED lens can design smallerly, thereby can in limited space, arrange more led light source, improve the illumination of light fixture on the road surface.
But, adopt the lens luminous intensity distribution, the decay of LED light is increased, thereby reduce the efficient of light fixture.
In the prior art, also have partial L ED street lamp to adopt the reflector luminous intensity distribution, still, because design is unreasonable, the size of reflector is generally all bigger, and the size of single reflector that can satisfy light distribution requirements is near 20mm * 40mm * 50mm.The reflector of this size can cause the volume of whole LED street lamp excessive, has both influenced attractive in appearance, the increase manufacturing cost of light fixture.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of rectangle luminous intensity distribution reflector, and it can realize the miniaturization of light fixture.
Another technical problem to be solved by this invention is to provide a kind of LED light fixture, and it has above-mentioned rectangle luminous intensity distribution reflector.
For rectangle luminous intensity distribution reflector of the present invention; Above-mentioned technical problem is solved like this: a kind of rectangle luminous intensity distribution reflector is provided; Light source mouth with corresponding light source setting goes out the light-emitting window that optical position is provided with corresponding, and said light source mouth and said light-emitting window are rectangle, and by be oppositely arranged and two first reflectings surface of symmetry and two second reflectings surface surround form; Said first reflecting surface and said second reflecting surface are stretching face; And having the first stretching bus and the second stretching bus respectively, the said first stretching bus and the second stretching bus are and are positioned at conplane multistage line, and include six end to end line segments; Angle between every line segment two ends and the said light source mouth geometric center line is 8-12 °, and the length of said six line segments is increased by said light source mouth to said light-emitting window successively.
More specifically, in the said first stretching bus, the angle between said line segment two ends and the said light source mouth geometric center line is 10 °.
More specifically, in the said second stretching bus, the angle between said line segment two ends and the said light source mouth geometric center line is 10 °.
More specifically, in the said first stretching bus, it is 51.5 ° near the line segment of said light source mouth and the angle between the plane, said light source mouth place.
More specifically, in the said second stretching bus, it is 46.5 ° near the line segment of said light source mouth and the angle between the plane, said light source mouth place.
More specifically, said light source mouth is a square.
More specifically, the length of side of said light source mouth is 8 millimeters.
More specifically, cross on said two first reflectings surface and two second reflectings surface and be provided with reflectance coating.
More specifically, said reflectance coating is the aluminium film, and its reflectivity is higher than 75%.
For LED light fixture of the present invention; Above-mentioned technical problem is solved like this: a kind of LED light fixture is provided; Comprise a plurality of led chips that are positioned circuit board, comprise also and the rectangle luminous intensity distribution reflector of the corresponding setting of said a plurality of led chips that said rectangle luminous intensity distribution reflector has said structure.
Compared with prior art; The size of rectangle luminous intensity distribution reflector of the present invention can be dwindled significantly, and the rectangle luminous intensity distribution reflector size of processing is not more than 16mm * 23mm * 14mm, and; Adopt the luminous angle of the LED light fixture of aforementioned rectangle luminous intensity distribution reflector can reach 40 ° * 60 °, uniformity of illuminance is high.
Description of drawings
Fig. 1 is the schematic perspective view of rectangle luminous intensity distribution reflector of the present invention one preferred embodiment;
Fig. 2 is a schematic top plan view embodiment illustrated in fig. 1, and shows reference axis;
Fig. 3 is a schematic side view embodiment illustrated in fig. 1, and shows reference axis;
Fig. 4 is that master embodiment illustrated in fig. 1 looks sketch map, and shows reference axis;
Fig. 5 be embodiment illustrated in fig. 1 in the structural representation of the first stretching bus, and show reference axis;
Fig. 6 be embodiment illustrated in fig. 1 in the structural representation of the second stretching bus, and show reference axis;
Fig. 7 is a working state schematic representation embodiment illustrated in fig. 1;
Fig. 8 is that the master of LED light fixture of the present invention looks sketch map;
Fig. 9 is distribution curve flux figure embodiment illustrated in fig. 8.
The specific embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please referring to figs. 1 through Fig. 4; Preferred embodiment for rectangle luminous intensity distribution reflector of the present invention; The light source mouth 11 that this rectangle luminous intensity distribution reflector 1 has the corresponding light source setting goes out the light-emitting window 12 that optical position is provided with correspondence; Said light source mouth 11 is rectangle with said light-emitting window 12, and by be oppositely arranged and two first reflectings surface 13 of symmetry and two second reflectings surface 14 surround form.Said first reflecting surface 13 is stretching face with said second reflecting surface 14, and has the first stretching bus and the second stretching bus respectively.The said first stretching bus and the second stretching bus are and are positioned at conplane multistage line.The wherein said first stretching bus comprises six end to end line segments (being line segment 131,132,133,134,135,136 shown in Figure 5); Angle between every line segment two ends and the said light source mouth geometric center O line is 8-12 °, and the length of said six line segments is increased by said light source mouth 11 to said light-emitting window 12 successively.The said second stretching bus also comprises six end to end line segments (being line segment 141,142,143,144,145,146 shown in Figure 6); Angle between every line segment two ends and the said light source mouth geometric center O line also is 8-12 °, and the length of said six line segments is increased by said light source mouth 11 to said light-emitting window 12 successively.Below present embodiment is described further.
Be convenient explanation; In the present embodiment; To be X axle and Y axle perpendicular to two straight lines on light source mouth 11 both sides respectively also,, set up coordinate system to be the Z axle perpendicular to the straight line on plane, light source mouth 11 place respectively also through light source mouth geometric center O through light source mouth geometric center O.Then, the length and the width of the corresponding rectangle luminous intensity distribution of X axle and Y axle reflector, the height of the then corresponding rectangle luminous intensity distribution of Z axle reflector.
Please combine with reference to Fig. 5, in the present embodiment, for the said first stretching bus, the angle between line segment 131,132,133,134,135,136 two ends and the said light source mouth geometric center O line is 10 °.Near the line segment 131 of said light source mouth 11 and the angle between the plane, said light source mouth 11 place is 51.5 °; Thereby, among line segment 131 and the figure angle of Z axle be 38.5 °, line segment 132 with figure in the angle of Z axle be 33.5 °, line segment 133 with figure in the angle of Z axle be 26 °, line segment 134 with figure in the angle of Z axle be 23.5 °, line segment 135 with figure in the angle of Z axle be 11 °, line segment 136 with figure in the angle of Z axle be 0 °.
Please combine with reference to Fig. 6; In the present embodiment; For the said second stretching bus; Angle between line segment 141,142,143,144,145,146 two ends and the said light source mouth geometric center O line also is 10 °; Near the line segment 141 of said light source mouth 11 and the angle between the plane, said light source mouth 11 place is 46.5 °, thereby, among line segment 141 and the figure angle of Z axle be 43.5 °, line segment 142 with figure in the angle of Z axle be 33.5 °, line segment 143 with figure in the angle of Z axle be 23.5 °, line segment 144 with figure in the angle of Z axle be 13.5 °, line segment 145 with figure in the angle of Z axle be 3.5 °; And the angle of Z axle is 40 ° among line segment 146 and the figure, and the length of line segment 146 can be so that line segment 146 pairing stretching faces be concordant in the position of light-emitting window 12 with adjacent segments 136 pairing stretching faces.
In the present embodiment, said light source mouth 11 is a square, and its length of side is 8 millimeters.Above-mentioned condition and parameter have promptly determined the shape and size of present embodiment rectangle luminous intensity distribution reflector 1.The rectangle luminous intensity distribution reflector size of processing is 16mm * 23mm * 14mm.
In the present embodiment, cross on said two first reflectings surface 13 and two second reflectings surface 14 and be provided with reflectance coating, can select reflectivity to be higher than 75% aluminium film reflectance coating as said rectangle luminous intensity distribution reflector.
Please combine with reference to Fig. 7; Be the present embodiment working state schematic representation; The light-emitting area of led chip 2 is alignd with rectangle luminous intensity distribution reflector bottom, the central lines of the center line of led chip 2 and rectangle luminous intensity distribution reflector, and the light-emitting area of led chip 2 is towards the light-emitting window direction of rectangle luminous intensity distribution reflector.
Like this, the light part that led chip 2 sends directly penetrates goes, and other most light penetrate through two first reflectings surface 13 and two second reflecting surface 14 reflection backs.Send and the light of directive reflector center line one side from led chip 2,, penetrate, penetrate thereby make light through reflector reflects be the intersection mode by reflector center line opposite side through after the reflector reflects.
Please combine with reference to Fig. 8, be the preferred embodiment of LED light fixture A of the present invention, this LED light fixture A comprises a plurality of led chips 2 that are positioned circuit board 3, also comprises the rectangle luminous intensity distribution reflector 1 with said a plurality of led chip 2 corresponding settings.
The specific practice of present embodiment is, is provided with 20 LEDs chips 2 on the circuit board 3 altogether, each rectangle luminous intensity distribution reflector 1 led chip corresponding to 1 3W, and led chip 2 is as shown in the figure with the position relation of rectangle luminous intensity distribution reflector 1, and both all arrange according to 4 * 5 mode.The shared light fixture space of 20 rectangle luminous intensity distribution reflectors is less than 90mm * 92mm * 14mm.If adopt reflector luminous intensity distribution of the prior art, the reflector occupation space size that 20 LEDs chips are installed so will be at least 215mm * 175mm * 33.9mm.Therefore, the volume of the light fixture of present embodiment is able to significantly dwindle.
Led chip 2 is under the situation of not process reflection or refraction, and its luminescent ligand light characteristic meets lambert's body radiation law, and luminous angle is about 120 degree.The rectangle luminous intensity distribution reflector of present embodiment is applicable to that luminous angle is about 120 degree, and diameter dimension is less than the led chip of 8mm.Please combine with reference to Fig. 9, the emergent light after the led chip process present embodiment rectangle luminous intensity distribution reflector reflects, its luminous angle is about 40 * 60 degree, and in this zone, realizes floodlighting, has than higher uniformity of illuminance.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. rectangle luminous intensity distribution reflector; Light source mouth with corresponding light source setting goes out the light-emitting window that optical position is provided with correspondence; It is characterized in that: said light source mouth and said light-emitting window are rectangle; And by be oppositely arranged and two first reflectings surface of symmetry and two second reflectings surface surround form, said first reflecting surface and said second reflecting surface are stretching face, and have the first stretching bus and the second stretching bus respectively; The said first stretching bus and the second stretching bus are and are positioned at conplane multistage line; And include six end to end line segments, and the angle between every line segment two ends and the said light source mouth geometric center line is 8-12 °, the length of said six line segments is increased by said light source mouth to said light-emitting window successively.
2. rectangle luminous intensity distribution reflector as claimed in claim 1 is characterized in that: in the said first stretching bus, the angle between said line segment two ends and the said light source mouth geometric center line is 10 °.
3. rectangle luminous intensity distribution reflector as claimed in claim 1 is characterized in that: in the said second stretching bus, the angle between said line segment two ends and the said light source mouth geometric center line is 10 °.
4. like claim 2 or 3 described rectangle luminous intensity distribution reflectors, it is characterized in that: in the said first stretching bus, be 51.5 ° near the line segment of said light source mouth and the angle between the plane, said light source mouth place.
5. like claim 2 or 3 described rectangle luminous intensity distribution reflectors, it is characterized in that: in the said second stretching bus, be 46.5 ° near the line segment of said light source mouth and the angle between the plane, said light source mouth place.
6. rectangle luminous intensity distribution reflector as claimed in claim 1 is characterized in that: said light source mouth is square.
7. rectangle luminous intensity distribution reflector as claimed in claim 6 is characterized in that: the length of side of said light source mouth is 8 millimeters.
8. rectangle luminous intensity distribution reflector as claimed in claim 1 is characterized in that: cross on said two first reflectings surface and two second reflectings surface and be provided with reflectance coating.
9. rectangle luminous intensity distribution reflector as claimed in claim 1 is characterized in that: said reflectance coating is the aluminium film, and its reflectivity is higher than 75%.
10. LED light fixture; Comprise a plurality of led chips that are positioned circuit board; It is characterized in that: comprise also and the rectangle luminous intensity distribution reflector of the corresponding setting of said a plurality of led chips that said rectangle luminous intensity distribution reflector has any described structure like claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028584.XA CN102620240B (en) | 2011-01-26 | 2011-01-26 | Rectangular light distribution reflector and LED (light-emitting diode) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110028584.XA CN102620240B (en) | 2011-01-26 | 2011-01-26 | Rectangular light distribution reflector and LED (light-emitting diode) lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102620240A true CN102620240A (en) | 2012-08-01 |
| CN102620240B CN102620240B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110028584.XA Expired - Fee Related CN102620240B (en) | 2011-01-26 | 2011-01-26 | Rectangular light distribution reflector and LED (light-emitting diode) lamp |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153698A (en) * | 2006-09-27 | 2008-04-02 | 阳杰科技股份有限公司 | LED bulb socket |
| CN101725903A (en) * | 2008-10-31 | 2010-06-09 | 台达电子工业股份有限公司 | Illuminating device and light reflecting cover thereof |
| CN101832512A (en) * | 2010-05-19 | 2010-09-15 | 海洋王照明科技股份有限公司 | Flood light reflector, flood light and motor boat |
-
2011
- 2011-01-26 CN CN201110028584.XA patent/CN102620240B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101153698A (en) * | 2006-09-27 | 2008-04-02 | 阳杰科技股份有限公司 | LED bulb socket |
| CN101725903A (en) * | 2008-10-31 | 2010-06-09 | 台达电子工业股份有限公司 | Illuminating device and light reflecting cover thereof |
| CN101832512A (en) * | 2010-05-19 | 2010-09-15 | 海洋王照明科技股份有限公司 | Flood light reflector, flood light and motor boat |
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| Publication number | Publication date |
|---|---|
| CN102620240B (en) | 2014-12-10 |
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Granted publication date: 20141210 Termination date: 20190126 |