CN102620240B - 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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- CN102620240B CN102620240B CN201110028584.XA CN201110028584A CN102620240B CN 102620240 B CN102620240 B CN 102620240B CN 201110028584 A CN201110028584 A CN 201110028584A CN 102620240 B CN102620240 B CN 102620240B
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- light source
- described light
- source mouth
- 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, LED light fixture becomes concerned in recent years focus with its low consumption, the characteristic such as durable, and the light-configuration mode of LED light fixture has important impact to the light efficiency of light fixture.Taking LED street lamp as example, the luminous intensity distribution of LED street lamp in prior art, mostly adopts special LED lens luminous intensity distribution.For this mode, because LED lens can design smallerly, thereby can in limited space, arrange more LED light source, improve the illumination of light fixture on road surface.
But, adopt lens luminous intensity distribution, can make the decay of LED light increase, thereby reduce the efficiency of light fixture.
In the prior art, also have part LED street lamp to adopt reflector luminous intensity distribution, still, unreasonable due to what design, the size of reflector is generally all larger, and the size that can meet the single reflector of light distribution requirements approaches 20mm × 40mm × 50mm.The reflector of this size can cause the volume of whole LED street lamp excessive, has both affected 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 and the correspondence with corresponding light source setting go out the light-emitting window that optical position arranges, described light source mouth and described light-emitting window are rectangle, and by be oppositely arranged and symmetrical two the first reflectings surface and two the second reflectings surface enclose form, described the first reflecting surface and described the second reflecting surface are Extrude Face, and there is respectively the first stretching bus and the second stretching bus, described the first stretching bus and the second stretching bus are and are positioned at conplane multi-section-line, and include six end to end line segments, angle between every line segment two ends and described light source mouth geometric center line is 8-12 °, the length of described six line segments is increased successively by described light source mouth to described light-emitting window.
More specifically, in described the first stretching bus, the angle between described line segment two ends and described light source mouth geometric center line is 10 °.
More specifically, in described the second stretching bus, the angle between described line segment two ends and described light source mouth geometric center line is 10 °.
More specifically, in described the first stretching bus, it is 51.5 ° near the angle between line segment and the described light source mouth place plane of described light source mouth.
More specifically, in described the second stretching bus, it is 46.5 ° near the angle between line segment and the described light source mouth place plane of described light source mouth.
More specifically, described light source mouth is square.
More specifically, the length of side of described light source mouth is 8 millimeters.
More specifically, on described two the first reflectings surface and two the second reflectings surface, cross and be provided with reflectance coating.
More specifically, described reflectance coating is 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 the multiple LED chips that are positioned circuit board, also comprise and the rectangle luminous intensity distribution reflector of the corresponding setting of described multiple LED chips, described 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 significantly be dwindled, and the rectangle luminous intensity distribution reflector size of making is not more than 16mm × 23mm × 14mm, and, adopt the light emitting anger of the LED light fixture of aforementioned rectangle luminous intensity distribution reflector can reach 40 ° × 60 °, uniformity of illuminance is high.
Brief description of the drawings
Fig. 1 is the schematic perspective view of rectangle luminous intensity distribution reflector of the present invention one preferred embodiment;
Fig. 2 is schematic top plan view embodiment illustrated in fig. 1, and shows reference axis;
Fig. 3 is schematic side view embodiment illustrated in fig. 1, and shows reference axis;
Fig. 4 is that master embodiment illustrated in fig. 1 looks schematic diagram, 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 working state schematic representation embodiment illustrated in fig. 1;
Fig. 8 is that the master of LED light fixture of the present invention looks schematic diagram;
Fig. 9 is distribution curve flux figure embodiment illustrated in fig. 8.
Detailed description of the invention
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Please refer to Fig. 1 to Fig. 4, for a preferred embodiment of rectangle luminous intensity distribution reflector of the present invention, light source mouth 11 and correspondence that this rectangle luminous intensity distribution reflector 1 has corresponding light source setting go out the light-emitting window 12 that optical position arranges, described light source mouth 11 and described light-emitting window 12 are rectangle, and by be oppositely arranged and symmetrical two the first reflectings surface 13 and two the second reflectings surface 14 enclose form.Described the first reflecting surface 13 and described the second reflecting surface 14 are Extrude Face, and have respectively the first stretching bus and the second stretching bus.Described the first stretching bus and the second stretching bus are and are positioned at conplane multi-section-line.Wherein said the first stretching bus comprises six end to end line segments (being line segment 131 shown in Fig. 5,132,133,134,135,136), angle between every line segment two ends and described light source mouth geometric center O line is 8-12 °, and the length of described six line segments is increased successively by described light source mouth 11 to described light-emitting window 12.Described the second stretching bus also comprises six end to end line segments (being line segment 141 shown in Fig. 6,142,143,144,145,146), angle between every line segment two ends and described light source mouth geometric center O line is also 8-12 °, and the length of described six line segments is increased successively by described light source mouth 11 to described light-emitting window 12.Below the present embodiment is described further.
For convenience of description, in the present embodiment, taking by light source mouth geometric center O and respectively perpendicular to two straight lines on light source mouth 11 both sides as X-axis and Y-axis, taking by light source mouth geometric center O and respectively perpendicular to the straight line of light source mouth 11 place planes as Z axis, set up coordinate system., length and the width of the corresponding rectangle luminous intensity distribution of X-axis and Y-axis reflector, Z axis is the height of corresponding rectangle luminous intensity distribution reflector.
Incorporated by reference to reference to Fig. 5, in the present embodiment, for described the first stretching bus, the angle between line segment 131,132,133,134,135,136 two ends and described light source mouth geometric center O line is 10 °.It is 51.5 ° near the angle between line segment 131 and the described light source mouth 11 place planes of described light source mouth 11, thereby, in line segment 131 and figure the angle of Z axis be 38.5 °, line segment 132 with figure in the angle of Z axis be 33.5 °, line segment 133 with figure in the angle of Z axis be 26 °, line segment 134 with figure in the angle of Z axis be 23.5 °, line segment 135 with figure in the angle of Z axis be 11 °, line segment 136 with figure in the angle of Z axis be 0 °.
Incorporated by reference to reference to Fig. 6, in the present embodiment, for described the second stretching bus, line segment 141, 142, 143, 144, 145, angle between 146 two ends and described light source mouth geometric center O line is also 10 °, it is 46.5 ° near the angle between line segment 141 and the described light source mouth 11 place planes of described light source mouth 11, thereby, in line segment 141 and figure, the angle of Z axis is 43.5 °, in line segment 142 and figure, the angle of Z axis is 33.5 °, in line segment 143 and figure, the angle of Z axis is 23.5 °, in line segment 144 and figure, the angle of Z axis is 13.5 °, in line segment 145 and figure, the angle of Z axis is 3.5 °, and the angle of Z axis is 40 ° in line segment 146 and figure, the length of line segment 146 can make the corresponding Extrude Face of line segment 146 concordant in the position of light-emitting window 12 with the corresponding Extrude Face of adjacent segments 136.
In the present embodiment, described light source mouth 11 is square, and its length of side is 8 millimeters.Above-mentioned condition and parameter have determined the shape and size of the present embodiment rectangle luminous intensity distribution reflector 1.The rectangle luminous intensity distribution reflector size of making is 16mm × 23mm × 14mm.
In the present embodiment, on described two the first reflectings surface 13 and two the second reflectings surface 14, cross and be provided with reflectance coating, can select reflectivity higher than 75% aluminium film the reflectance coating as described rectangle luminous intensity distribution reflector.
Incorporated by reference to reference to Fig. 7, for the present embodiment working state schematic representation, the light-emitting area of LED chip 2 is alignd with rectangle luminous intensity distribution reflector bottom, and the center line of LED chip 2 overlaps with the center line of 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 is directly shot out, and other most light penetrate after two the first reflectings surface 13 and two the second reflecting surface 14 reflections.Send the also light of directive reflector center line one side from LED chip 2, after reflector reflection, penetrated by reflector center line opposite side, penetrate thereby make to be interleaved mode through the light of reflector reflection.
Incorporated by reference to reference to Fig. 8, be a preferred embodiment of LED light fixture A of the present invention, this LED light fixture A comprises the multiple LED chips 2 that are positioned circuit board 3, also comprises the rectangle luminous intensity distribution reflector 1 with the corresponding setting of described multiple LED chips 2.
The specific practice of the present embodiment is, is provided with altogether 20 LEDs chips 2 on circuit board 3, each rectangle luminous intensity distribution reflector 1 LED chip corresponding to 1 3W, and as shown in the figure, both all arrange according to 4 × 5 mode the position relationship of LED chip 2 and rectangle luminous intensity distribution reflector 1.20 shared light fixture spaces of rectangle luminous intensity distribution reflector are less than 90mm × 92mm × 14mm.If adopt reflector luminous intensity distribution of the prior art, the bulk that the reflector of 20 LEDs chips takies is installed so and will be at least 215mm × 175mm × 33.9mm.Therefore, the volume of the light fixture of the present embodiment is significantly dwindled.
LED chip 2 is not through reflection or refraction in the situation that, and its luminescent ligand light characteristic meets lambert's body radiation law, and light emitting anger is about 120 degree.It is 120 degree left and right that the rectangle luminous intensity distribution reflector of the present embodiment is applicable to light emitting anger, and diameter dimension is less than the LED chip of 8mm.Incorporated by reference to reference to Fig. 9, the emergent light of LED chip after the reflection of the present embodiment rectangle luminous intensity distribution reflector, its light emitting anger is about 40 × 60 degree, and realizes floodlighting in this region, has higher uniformity of illuminance.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a rectangle luminous intensity distribution reflector, light source mouth and the correspondence with corresponding light source setting go out the light-emitting window that optical position arranges, it is characterized in that: described light source mouth and described light-emitting window are rectangle, and by be oppositely arranged and symmetrical two the first reflectings surface and two the second reflectings surface enclose form, described the first reflecting surface and described the second reflecting surface are Extrude Face, and thering is respectively the first stretching bus and the second stretching bus, described the first stretching bus and the second stretching bus are and are positioned at conplane multi-section-line; Described the first stretching bus comprises six end to end line segments, angle between every line segment two ends and described light source mouth geometric center line is 8-12 ° and is 0 ° near the line segment two ends of described light-emitting window and the angle of described light source mouth geometric center line, the length of described six line segments by described light source mouth extremely described light-emitting window increase successively; Described the second stretching bus comprises six end to end line segments, and the angle between every line segment two ends and described light source mouth geometric center line is 8-12 °, and the length of described six line segments is increased successively by described light source mouth to described light-emitting window; In described the first stretching bus, be 51.5 ° near the angle between line segment and the described light source mouth place plane of described light source mouth, be 90 ° near the angle between line segment and the described light source mouth place plane of described light-emitting window; In described the second stretching bus, be 46.5 ° near the angle between line segment and the described light source mouth place plane of described light source mouth, be 50 ° near the angle between line segment and the described light source mouth place plane of described light-emitting window.
2. rectangle luminous intensity distribution reflector as claimed in claim 1, is characterized in that: in described the first stretching bus, the angle between described line segment two ends and described light source mouth geometric center line is 10 °.
3. rectangle luminous intensity distribution reflector as claimed in claim 1, is characterized in that: in described the second stretching bus, the angle between described line segment two ends and described light source mouth geometric center line is 10 °.
4. rectangle luminous intensity distribution reflector as claimed in claim 1, is characterized in that: described light source mouth is square.
5. rectangle luminous intensity distribution reflector as claimed in claim 4, is characterized in that: the length of side of described light source mouth is 8 millimeters.
6. rectangle luminous intensity distribution reflector as claimed in claim 1, is characterized in that: on described two the first reflectings surface and two the second reflectings surface, plating is provided with reflectance coating.
7. rectangle luminous intensity distribution reflector as claimed in claim 6, is characterized in that: described reflectance coating is aluminium film, and its reflectivity is higher than 75%.
8. a LED light fixture, comprise the multiple LED chips that are positioned circuit board, it is characterized in that: also comprise and the rectangle luminous intensity distribution reflector of the corresponding setting of described multiple LED chips, described rectangle luminous intensity distribution reflector is the rectangle luminous intensity distribution reflector as described in claim 1-7 any one.
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 CN102620240A (en) | 2012-08-01 |
| CN102620240B true 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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| Country | Link |
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| CN (1) | CN102620240B (en) |
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 |
|---|---|
| CN102620240A (en) | 2012-08-01 |
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Granted publication date: 20141210 Termination date: 20190126 |