CN101900266A - LED and LED street lamp - Google Patents
LED and LED street lamp Download PDFInfo
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- CN101900266A CN101900266A CN 201010189804 CN201010189804A CN101900266A CN 101900266 A CN101900266 A CN 101900266A CN 201010189804 CN201010189804 CN 201010189804 CN 201010189804 A CN201010189804 A CN 201010189804A CN 101900266 A CN101900266 A CN 101900266A
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Abstract
The invention relates to the fields of light-emitting diode (LED) structure and LED street lamp lighting. The LED is characterized in that an LED chip is fixed on an LED support and coated with fluorescent glue; a packaged lens is arranged above the LED support and outside the fluorescent glue, and silica gel is injected between the inner side of the packaged lens and the outside of the fluorescent glue, wherein the packaged lens is formed by splicing two spherical crown-shaped bodies which are approximately ellipsoid; and the packaged lens and the silica gel can replace an integral silica gel packaging structure having the packaged lens profile. The LED street lamp comprises the LEDs, a lamp socket and reflectors, wherein the reflectors comprise a plurality of U-shaped elongated slots; the LEDs are arranged at the bottom of the U-shaped elongated slots of the reflectors; and the reflectors are mounted on the lamp socket. The invention solves the problem that the white-light LED is prone to non-uniform illumination intensity when being used in the street lamp for lighting with simple structure and achieves the LED structure and the LED street lamp capable of realizing the uniform rectangular light spot lighting.
Description
Technical field
The present invention relates to Light-Emitting Diode (LED) field, relate in particular to and to realize that the photodistributed Light-Emitting Diode of rectangle (LED) reaches by its street lighting device that constitutes.
Background technology
Power type white light LED is considered to the solid light source of a new generation because of plurality of advantages such as its energy-saving and environmental protection, will progressively replace traditional lighting light sources such as incandescent lamp, fluorescent lamp, enters the general lighting field.General LED street lamp is to adopt common encapsulated LED, because the luminescence chip of common encapsulated LED and the light that fluorescent material sends do not carry out optical correction, can form circular hot spot (light is distributed as lambert's type), therefore its light that shines the road surface is distributed as middle bright and dark circular light spot all around, illumination is very inhomogeneous, and circular light spot does not meet the requirement of road lengthwise, generally need convert circular light spot to the rectangular light district by other auxiliary optical lens systems.
In the prior art, convert circular light spot to the rectangular light district and adopt cylindrical lens more,, can not solve the uneven problem of light though it can make the ray cast of sending become the rectangular light district.Perhaps for improving uniformity of illuminance, common solution is to use the reflector of secondary optical lens or more complicated, yet all comparatively complexity and cost are also higher for these two kinds of method structures, and light loss is bigger.For example: Chinese patent publication number CN101324317A discloses a kind of " special-shaped lens and high power LED road lamp shade ".It is provided with lens again in the LED outside, and these lens are special-shaped lens, can convert the light that hemispherical led light source sends to rectangular light spot, and can well solve the uneven problem of light.But the structure of this special-shaped lens is very complicated, and precision prescribed is also very high, in case machining accuracy does not reach requirement, just can't reach the reflection or the refraction effect of expection.Therefore the solution cost of existing employing special-shaped lens is very high.And the secondary lens that uses in this structure itself has only about 90% visible light transmittance, so just caused the decline of road lamp efficiency.
Summary of the invention
Therefore, for overcoming the defective of above-mentioned prior art, the present invention proposes a kind of LED, the packaging body self of this LED itself forms lens, the light of the different angles that luminescence chip and fluorescent material can be sent changes his rising angle by different curved surface adjustments, and the light that LED itself is sent forms the hot spot of rectangle, the same with the shape on road road surface, the illumination during use on the road surface is also very even.And, the LED of this specific package structure is applied to field of street lamp lighting, obtain a kind ofly can realize the photodistributed LED street lamp of even rectangle.
Technical scheme of the present invention is:
A kind of LED is: fix a led chip on led support, be coated with fluorescent glue on the led chip, described led support top is provided with a package lens with the fluorescent glue outside, and between package lens inboard and fluorescent glue outside, inject silica gel, described package lens is spliced by the ball-crown body of two similar ellipsoids, the height of splicing place is less than the height on spherical crown summit, each ball-crown body outer surface is made of 3 sections different smooth linkings of curved surface of curvature, and the second curved sections radius of curvature at spherical crown summit place that wherein is positioned at ball-crown body is less than near the first surface section radius of curvature of two ball-crown body splicings place and the 3rd curved sections radius of curvature in package lens two outsides.
Further, described package lens and silica gel can be replaced by the silica gel encapsulating structure of the package lens profile that the above-mentioned ball-crown body by two similar ellipsoids of having of one is spliced.
Further, described splicing place is 0.1mm～2mm with the difference in height on spherical crown summit.
Further, described splicing place is 0.3mm～0.7mm with the difference in height on spherical crown summit.
Further again, described splicing place is 0.5mm with the difference in height on spherical crown summit.
Further, the spacing on the spherical crown summit of described two ball-crown bodies is 0.5mm～8mm.
Further, the spacing on the spherical crown summit of described two ball-crown bodies is 3.5mm～4.5mm.
Further, the described second curved sections radius of curvature is 1mm～10mm.
Further, the described second curved sections radius of curvature is 2.3mm.
A kind of LED street lamp that is made of aforesaid LED, lamp base and reflection shield is specifically: described reflection shield is many and arranges the U-shaped trough types that are provided with according to application requirements, a plurality of aforesaid LED are placed the bottom of the U-shaped trough type of described reflection shield at interval according to application requirements, described reflection shield is installed on the described lamp base.
Further, the dual-side of the U-shaped trough type of described reflection shield is adjustable flat board.
Further, the flat board of described dual-side is articulated in the bottom of described U-shaped trough type.
Further, the angle of the flat board of described dual-side is 15 °～85 °.
Further, the material of described package lens can be the resin or the silica gel of high-transmittance.
The present invention adopts as above technical scheme, the present invention proposes a kind of LED, the packaging body self of this LED itself forms lens, lens surface is to be spliced by different curve, led chip is lucky by different curved surface outgoing with the light of the different angles that fluorescent material is sent, there is refringence between package lens material and air, emergent ray is reflected, thereby changed the exit direction of light, the light that LED itself is sent forms approximate rectangular hot spot, the same with the shape on road road surface, the illumination during use on the road surface is also very even.And this LED structure also just reduced production cost owing to do not use secondary optical lens and reflector in the prior art, is a kind of rectangle luminous lighting LED simple in structure and with low cost.The present invention also is applied to field of street lamp lighting with the LED of this specific package structure, and is the reflection shield of adjustable flat board according to the dual-side that road illumination needs design a kind of U-shaped trough type, can obtain a kind ofly can realize the photodistributed LED street lamp of even rectangle.This scheme has been avoided lens to absorb reflection and has been waited the light loss that causes owing to do not add secondary lens, and with respect to the scheme of using secondary lens, the light efficiency of the whole lamp of street lamp can improve about 6%.
Description of drawings
Fig. 1 (a) is a wide longitudinal cross-section schematic diagram of first example structure of LED of the present invention;
Fig. 1 (b) is the leptoprosopy longitudinal cross-section schematic diagram of first example structure of LED of the present invention;
Fig. 1 (c) is the vertical view of first example structure of LED of the present invention;
Fig. 2 (a) is a wide longitudinal cross-section schematic diagram of second example structure of LED of the present invention;
Fig. 2 (b) is the leptoprosopy longitudinal cross-section schematic diagram of second example structure of LED of the present invention;
Fig. 2 (c) is the vertical view of second example structure of LED of the present invention;
Fig. 3 (a) is the wide face light path schematic diagram longitudinally of LED of the present invention;
Fig. 3 (b) is the leptoprosopy light path schematic diagram longitudinally of LED of the present invention;
Fig. 4 is the light distribution schematic diagram of angle and the The Relationship of Light intensity of LED of the present invention;
Fig. 5 is the schematic perspective view of LED street lamp of the present invention;
Fig. 6 is the interior light path schematic diagram of reflection shield of LED street lamp of the present invention.
The specific embodiment
Now the present invention is further described with the specific embodiment in conjunction with the accompanying drawings.
Consult shown in Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c), the LED2 of present embodiment comprises led chip 22, led support 21, fluorescent glue 23, silica gel 24 and package lens 25.Described led chip 22 is fixed on the led support 21, go between led support 21 from led chip 22 again on.Be coated with fluorescent glue 23 on the led chip 22, be installed to package lens 25 on the led support 21 and be placed on outside the led chip 22, annotating in the package lens 25 again and go up silica gel 24.Structure close proximity such as the silica gel 24 of described package lens 25 lower ends and led support 21 do not have air layer, and its material can be transparent silica gel, transparent epoxy resin etc.Described package lens 25 is spliced by the ball-crown body of two similar ellipsoids, the height of splicing place 251 is less than the height on spherical crown summit 252, each ball-crown body outer surface is made of 3 sections different smooth linkings of curved surface of curvature, and the second curved sections radius of curvature R 2 at spherical crown summit place that wherein is positioned at ball-crown body is less than near the first surface section radius of curvature R 1 of two ball-crown body splicings place and the 3rd curved sections radius of curvature R 3 in 25 liang of outsides of package lens.
Consult shown in Fig. 2 (a), Fig. 2 (b) and Fig. 2 (c), the LED2 of second embodiment and above-mentioned the same led chip 22, led support 21, the fluorescent glue 23 of comprising of first embodiment, above-mentioned package lens 25 that different is and silica gel 24 can be replaced by the silica gel encapsulating structure 24 ' of the package lens profile that the above-mentioned ball-crown body by two similar ellipsoids of having of one is spliced.
Owing to have refringence between the material of package lens 25 and silica gel 24 or silica gel encapsulating structure 24 ' and air, led chip 22 reflects in package lens 25 or silica gel encapsulating structure 24 ' surface with the light that fluorescent material sends, thereby has changed the exit direction of light.And package lens 25 of the present invention or silica gel encapsulating structure 24 ' are to have LED package surface shape by changing, and change original single globe lens into two ellipsoid lens, and the light path of the lens packages of this structure is shown in Fig. 3 (a) and Fig. 3 (b).From index path as can be seen, behind the package lens 25 of the package lens profile that the light that led chip 22 sends is spliced by the ball-crown body by two similar ellipsoids or the silica gel encapsulating structure 24 ' its light intensity than the cross direction both sides is strengthened, thereby formed the uniform rectangular light spot of illumination.
Fig. 4 is the light distribution schematic diagram of angle and the The Relationship of Light intensity of described LED2, the LED of this light distribution can obtain the uniform rectangular light distribution of illumination in the middle of using illumination, therefore the present invention has solved the even problem of white light LEDs uneven illumination with simple structure, and can obtain required rectangular light spot.
Consult shown in Figure 5, be with LED structure applications of the present invention in field of street lamp lighting, thereby the photodistributed LED street lamp of the even rectangle of a kind of realization that proposes.This LED street lamp is made of aforesaid LED2, lamp base 3 and reflection shield 1.Wherein, described reflection shield 1 is many U-shaped trough types of arranging setting according to application requirements, a plurality of aforesaid LED2 are arranged at intervals at the bottom 11 of the U-shaped trough type of described reflection shield 1 according to application requirements, described reflection shield 1 is installed on the described lamp base 3.The dual-side of the U-shaped trough type of described reflection shield 1 is adjustable flat board 12.Preferably, the flat board 12 of described dual-side is articulated in the bottom 11 of described U-shaped trough type.The angle of the flat board 12 of described dual-side is 15 °～85 °.
Consult shown in Figure 6ly, described LED2 vertically vertically install along the U-shaped elongated slot of reflection shield 1 with its broad, and on street lamp, the reflection shield 1 of U-shaped trough type vertically is provided with along road again when mounted.In addition, it is that the horizontal unnecessary light of directive road that 15 °～85 ° flat board 12 can send LED2 reflects to the centre that the dual-side of described reflection shield 1 has angle, thereby guaranteed that this LED street lamp produces better rectangular light and distributes, with the demand of the even rectangular illumination that satisfies road.
An important advantage of LED street lamp of the present invention is: the flat board 12 of the U-shaped elongated slot dual-side of this reflection shield 1 is the adjustable structure that articulates with the bottom 11 of U-shaped trough type.During installation, angle [alpha], the β of bottom 11 vertical lines of flat board 12 relative U-shaped trough types that can be by regulating dual-side, regulate to middle reinforcement light how much.Like this, when the package lens 25 of described LED or the machining accuracy of silica gel encapsulating structure 24 ' do not reach designing requirement, when the light centre after causing reflecting is not enough or brighter, in the time of can passing through light fixture is installed, regulate the angle of reflection shield 1 dual-side flat board 12, light is carried out reinforcement to the position of deficiency, thereby light is evenly distributed.Mode by adjustable reflection shield 1 dual-side angle is come reinforcement light can reduce the requirement on machining accuracy to package lens 25 or silica gel encapsulating structure 24 '.Moreover, can regulate the reflection shield 1 of dual-side angle, can also regulate the irradiation area of light, that is to say, according to LED on LED street lamp and the LED street lamp in road installation site transversely, and desired irradiation area, the angle of regulating dual-side, by the reflection of reflection shield dual-side, make light fall the regulation zone.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present invention that do not break away from appended claims and limited; can make various variations to the present invention in the form and details, be protection scope of the present invention.
Claims (13)
1. LED, it is characterized in that: on led support (21), fix a led chip (22), be coated with fluorescent glue (23) on the led chip (22), described led support (21) top is provided with a package lens (25) with fluorescent glue (23) outside, and between package lens (25) inboard and fluorescent glue (23) outside, inject silica gel (24), described package lens (25) is spliced by the ball-crown body of two similar ellipsoids, the height of splicing place (251) is less than the height of spherical crown summit (252), each ball-crown body outer surface is made of 3 sections different smooth linkings of curved surface of curvature, and the second curved sections radius of curvature (R2) at spherical crown summit place that wherein is positioned at ball-crown body is less than near the first surface section radius of curvature (R1) of two ball-crown body splicings place and the 3rd curved sections radius of curvature (R3) in package lens (25) two outsides.
2. LED according to claim 1 is characterized in that: described package lens (25) and silica gel (24) can be replaced by the silica gel encapsulating structure (24 ') of the package lens profile that the above-mentioned ball-crown body by two similar ellipsoids of having of one is spliced.
3. LED according to claim 1 is characterized in that: described splicing place (251) is 0.1mm～2mm with the difference in height on spherical crown summit (252).
4. LED according to claim 3 is characterized in that: described splicing place (251) is 0.3mm～0.7mm with the difference in height on spherical crown summit (252).
5. LED according to claim 4 is characterized in that: described splicing place (251) is 0.5mm with the difference in height on spherical crown summit (252).
6. LED according to claim 1 is characterized in that: the spacing on the spherical crown summit (252) of described two ball-crown bodies is 0.5mm～8mm.
7. LED according to claim 6 is characterized in that: the spacing on the spherical crown summit (252) of described two ball-crown bodies is 3.5mm～4.5mm.
8. LED according to claim 1 is characterized in that: the described second curved sections radius of curvature (R2) is 1mm～10mm.
9. LED according to claim 8 is characterized in that: the described second curved sections radius of curvature (R2) is 2.3mm.
10. LED street lamp that constitutes by the as above described LED of arbitrary claim (2), lamp base (3) and reflection shield (1), it is characterized in that: described reflection shield (1) is many U-shaped trough types, the described LED of a plurality of as above arbitrary claim (2) is arranged at the bottom (11) of the U-shaped trough type of described reflection shield (1), described reflection shield (1) is installed on the described lamp base (3).
11. LED street lamp according to claim 10 is characterized in that: the dual-side of the U-shaped trough type of described reflection shield (1) is adjustable flat board (12).
12. LED street lamp according to claim 11 is characterized in that: the flat board of described dual-side (12) is articulated in the bottom (11) of described U-shaped trough type.
13. LED street lamp according to claim 11 is characterized in that: the angle of the flat board of described dual-side (12) is 15 °～85 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010189804 CN101900266A (en) | 2009-05-19 | 2010-05-18 | LED and LED street lamp |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920138480 | 2009-05-19 | ||
| CN200920138480.2 | 2009-05-19 | ||
| CN 201010189804 CN101900266A (en) | 2009-05-19 | 2010-05-18 | LED and LED street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101900266A true CN101900266A (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010189804 Pending CN101900266A (en) | 2009-05-19 | 2010-05-18 | LED and LED street lamp |
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| CN (1) | CN101900266A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767756A (en) * | 2012-06-27 | 2012-11-07 | 中微光电子(潍坊)有限公司 | Two-peak lens LED (Light-Emitting Diode) for street lamp |
| CN102832322A (en) * | 2012-09-03 | 2012-12-19 | 歌尔声学股份有限公司 | Light emitting diode device |
| CN102980090A (en) * | 2011-09-07 | 2013-03-20 | 王元成 | Light-emitting diode (LED) street lamp |
| CN103411143A (en) * | 2013-07-09 | 2013-11-27 | 南通亚浦照明电器制造有限公司 | LED lamp for improving lighting effect and reducing light attenuation |
| CN104421836A (en) * | 2013-09-05 | 2015-03-18 | 江苏积汇新能源科技有限公司 | Universal LED lens |
| CN107191893A (en) * | 2017-07-24 | 2017-09-22 | 深圳市华星光电技术有限公司 | A kind of LED/light source lens and display panel |
| CN108591854A (en) * | 2018-06-14 | 2018-09-28 | 李鹤荣 | A kind of light-source structure that light extraction is wide |
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| CN101101096A (en) * | 2007-07-27 | 2008-01-09 | 江苏伯乐达光电科技有限公司 | Highly effective slot-shaped reflective cover and its uses in LED road lamp |
| CN101373048A (en) * | 2008-08-05 | 2009-02-25 | 周广跃 | LED light source structure |
| CN201237103Y (en) * | 2008-08-11 | 2009-05-13 | 李�浩 | High-power LED suitable for road lamp |
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2010
- 2010-05-18 CN CN 201010189804 patent/CN101900266A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101101096A (en) * | 2007-07-27 | 2008-01-09 | 江苏伯乐达光电科技有限公司 | Highly effective slot-shaped reflective cover and its uses in LED road lamp |
| CN101373048A (en) * | 2008-08-05 | 2009-02-25 | 周广跃 | LED light source structure |
| CN201237103Y (en) * | 2008-08-11 | 2009-05-13 | 李�浩 | High-power LED suitable for road lamp |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980090A (en) * | 2011-09-07 | 2013-03-20 | 王元成 | Light-emitting diode (LED) street lamp |
| CN102980090B (en) * | 2011-09-07 | 2015-04-08 | 王元成 | Light-emitting diode (LED) street lamp |
| CN102767756A (en) * | 2012-06-27 | 2012-11-07 | 中微光电子(潍坊)有限公司 | Two-peak lens LED (Light-Emitting Diode) for street lamp |
| CN102832322A (en) * | 2012-09-03 | 2012-12-19 | 歌尔声学股份有限公司 | Light emitting diode device |
| CN103411143A (en) * | 2013-07-09 | 2013-11-27 | 南通亚浦照明电器制造有限公司 | LED lamp for improving lighting effect and reducing light attenuation |
| CN104421836A (en) * | 2013-09-05 | 2015-03-18 | 江苏积汇新能源科技有限公司 | Universal LED lens |
| CN104421836B (en) * | 2013-09-05 | 2018-03-13 | 江苏积汇新能源科技有限公司 | A kind of Universal LED lens |
| CN107191893A (en) * | 2017-07-24 | 2017-09-22 | 深圳市华星光电技术有限公司 | A kind of LED/light source lens and display panel |
| CN107191893B (en) * | 2017-07-24 | 2020-06-05 | 深圳市华星光电技术有限公司 | Lens for LED light source and display panel |
| CN108591854A (en) * | 2018-06-14 | 2018-09-28 | 李鹤荣 | A kind of light-source structure that light extraction is wide |
| WO2019237418A1 (en) * | 2018-06-14 | 2019-12-19 | 李鹤荣 | Light source structure having large light emergent surface |
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Application publication date: 20101201 |