CN201407597Y - Lens capable of changing output intensity distribution of light-emitting diode (LED) in large range - Google Patents
Lens capable of changing output intensity distribution of light-emitting diode (LED) in large range Download PDFInfo
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- CN201407597Y CN201407597Y CN2009201169191U CN200920116919U CN201407597Y CN 201407597 Y CN201407597 Y CN 201407597Y CN 2009201169191 U CN2009201169191 U CN 2009201169191U CN 200920116919 U CN200920116919 U CN 200920116919U CN 201407597 Y CN201407597 Y CN 201407597Y
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- emitting diode
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Abstract
The utility model relates to a lens capable of changing the output intensity distribution of a light-emitting diode (LED) in large range, relating to the optical field. The prior art has the defects that the structure is complex, the light-radiation requirement is difficult to be ensured, and the like. The lens is provided with an upper curved surface and a bottom surface; a light-transmission medium layer is arranged between the upper curved surface and the bottom surface; and the light-transmission medium layer is provided with an optical processing inclined surface. As the lens is providedwith a convex part or a concave part with the optical processing inclined surface, part of central light beams of the LED lamp radiate towards two sides so as to form the maximum light intensity about60 degrees away from the central line, thus meeting the illumination requirement. And the lens has the advantages of simple structure, convenient installation and maintenance and stable working.
Description
[technical field]
The utility model relates to optical field, specifically is a kind of lens that can change the distribution of light emitting diode output intensity on a large scale.
[background technology]
The application of great power LED in road lighting is universal day by day, road lighting all has strict demand to the illumination on illuminated road surface, brightness, the uniformity, photochromic and scope etc., the light distribution of light fixture need be satisfied the shape shown in curve among Fig. 11, and promptly the maximum output intensity of light fixture is on about 60 ° on decentre line.And the light distribution of the light that general LED directly sends is rounded, and therefore the output largest light intensity need add the secondary optics treating apparatus outside LED near center line.
At present usually the secondary optics processing method that adopts is to adopt a plurality of LED and before each LED collector lens is set, and regulates the shooting angle of each LED, makes it to shine specific scope, and the irradiation by a plurality of LED superposes and reaches whole light intensity requirement.Adopt the fitting structure complexity of this method, installation and maintenance are all very loaded down with trivial details, and when one or several damaged among these LED, it was dark partially just can to occur the part in the whole range of exposures, does not reach the light distribution requirement.
[utility model content]
In order to overcome the above-mentioned defective that exists in the prior art, the utility model adopts lens of a light source just can realize street lamp light distribution requirement by improving lens shape, with reach simplified structure, be convenient to installation and maintenance, the purpose of working stability.
For this reason, the utility model is by the following technical solutions: a kind ofly can change the lens that the light emitting diode output intensity distributes on a large scale, it is characterized in that it has top-surface camber and bottom surface, is the light transmission medium layer between top-surface camber and the bottom surface, and described light transmission medium layer is provided with light and handles the inclined-plane.After installing these lens, LED generally is positioned under the bottom surface, wide the causing that LED sent vertically shines light processing inclined-plane, refraction continuation edge takes place fraction light propagates with the light path that the vertical direction angle is more or less the same, and most of light can reflect, and penetrates to the side of lens, so just make the poly-side that arrived of the light that originally shone the center, suitably regulate the size shape of male part, just can make light fixture about 60 °, reach maximum light intensity, satisfy instructions for use.This programme uses a great power LED, lens just can realize light distribution requirements, and is simple in structure, and installation and maintenance are convenient, compare with the prior art of using a plurality of LED, and the fault rate of light fixture is also lower.
As to the improving and replenishing of technique scheme, the utility model is further taked following technical measures:
Described light is handled the inclined-plane and is located at top-surface camber, and top-surface camber central authorities are provided with an inner fovea part, and draw in downwards gradually from top-surface camber the side of this inner fovea part, forms light and handles the inclined-plane.
Described light is handled the inclined-plane and is located at top-surface camber, and top-surface camber central authorities are provided with an inner fovea part, and draw in downwards gradually from top-surface camber the side of this inner fovea part, forms light and handles the inclined-plane.This dual mode can both form reflecting effect.
Described male part is to be horizontal triangular prism shaped, and a triangular prism shaped side is connected on the bottom surface, and other two sides form light and handle the inclined-plane, and light penetrates from two sides after light is handled the inclined-plane reflection.
Described male part or inner fovea part also can be turbination or inverted pyramid or the elliptic cone that falls, and drift angle generally between 20 °-35 °, is according to circumstances selected.
Described top-surface camber and bottom surface all are parabolic, and male part is located at down parabolic central authorities, and this just is equivalent to process male part or inner fovea part on traditional convex lens, and convenient processing and manufacture can reach light distribution requirements too.
Described top-surface camber is an aspheric surface, he comprises a main curved surface and is located at two outer convex surfaces on the main curved surface symmetrically, described bottom surface comprises a plane and the inner sunken face of driveing on the plane, the lower ending opening of inner sunken face has the straight line of two symmetries, link to each other by two circular arcs between two straight lines, male part is located at inner sunken face central authorities.
Described top-surface camber is an aspheric surface, he comprises a main curved surface and is located at two outer convex surfaces on the main curved surface symmetrically, described bottom surface comprises a plane and the inner sunken face of driveing on the plane, the lower ending opening of inner sunken face has the straight line of two symmetries, link to each other by two circular arcs between two straight lines, inner fovea part is located at main curved surface central authorities.
Outer convex surface has the effect that central ray is dispersed to both sides equally, and with after male part combines, light distribution effect is better with this structure, and the irradiation area shape is better.
Beneficial effect: the utility model has male part or the inner fovea part that light is handled the inclined-plane by being provided with on lens, LED light fixture part central ray is dispersed to both sides, forms largest light intensity for about 60 ° at the decentre line, satisfy illumination requirement, simple in structure, installation and maintenance are convenient, working stability.
[description of drawings]
Fig. 1 is the desirable light intensity distribution schematic diagram of street lamp.
Fig. 2 is the utility model structural representation.
Fig. 3 is a bottom surface portions schematic diagram of the present utility model.
Fig. 2 is another structural representation of the utility model.
[specific embodiment]
The lens that can change the distribution of light emitting diode output intensity on a large scale as shown in Figure 2, have top-surface camber 5 and bottom surface 2, fill the light transmission medium layer between top-surface camber 5 and the bottom surface 2, bottom surface central authorities are provided with a male part 3, draw in downwards gradually from the bottom surface side of male part 3, form light and handle inclined-plane 31, the apex angle of male part 3 can be selected in 20 °-35 °.
Under comparatively ideal situation, top-surface camber 1 can be made into shape shown in Figure 2, comprise main curved surface 52 and be located at two outer convex surfaces 51 on the main curved surface symmetrically, bottom surface 2 comprises plane 21 and inner sunken face 22, the lower ending opening of inner sunken face 22 has the straight line of two symmetries, link to each other (Fig. 3) by two circular arcs between two straight lines, male part is located at inner sunken face central authorities.
Male part can be made into triangular prism shaped, and a triangular prism shaped side is connected on the bottom surface, and other two sides 31 form light and handle the inclined-plane, also can be made into turbination (as Fig. 3) or inverted pyramid or the oval taper of falling.Top-surface camber and ground shape also can adopt traditional paraboloidal.Other parts of male part and lens can be made into integration, and can separately make the back assembling.
After being contained in these lens on the LED 4, can see, when the light of the vertical centerline direction that LED sends is handled the inclined-plane through light by Fig. 2, a part is through superrefraction, and slightly to side deflection, another part is then through reflection, change bigger angle and penetrate, thereby reach the light distribution requirement to the side.
Same, in upper curve central authorities inner fovea part 6 is set and also can reaches identical effect (Fig. 4).
Claims (10)
1, a kind of lens that can change the distribution of light emitting diode output intensity on a large scale, it is characterized in that: it has top-surface camber and bottom surface, is the light transmission medium layer between top-surface camber and the bottom surface, and described light transmission medium layer is provided with light and handles the inclined-plane.
2, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 1, it is characterized in that: described light is handled the inclined-plane and is located at the bottom surface, bottom surface central authorities are provided with a male part, and draw in downwards gradually from the bottom surface side of this male part, form light and handle the inclined-plane.
3, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 1, it is characterized in that: described light is handled the inclined-plane and is located at top-surface camber, top-surface camber central authorities are provided with an inner fovea part, and draw in downwards gradually from top-surface camber the side of this inner fovea part, form light and handle the inclined-plane.
4, according to claim 2ly can change the lens that the light emitting diode output intensity distributes on a large scale, it is characterized in that: described male part is to be horizontal triangular prism shaped, and a triangular prism shaped side is connected on the bottom surface, and other two sides form light and handle the inclined-plane.
5, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 2, it is characterized in that: described male part is a turbination, its drift angle is 20 °-35 °.
6, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 2 is characterized in that: described male part is the inverted pyramid or the elliptic cone that falls.
7, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 3, it is characterized in that: described inner fovea part is a turbination, its drift angle is 20 °-35 °.
8, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 3 is characterized in that: described inner fovea part is the inverted pyramid or the elliptic cone that falls.
9, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 2, it is characterized in that: described top-surface camber is an aspheric surface, he comprises a main curved surface and is located at two outer convex surfaces on the main curved surface symmetrically, described bottom surface comprises a plane and the inner sunken face of driveing on the plane, the lower ending opening of inner sunken face has the straight line of two symmetries, link to each other by two circular arcs between two straight lines, male part is located at inner sunken face central authorities.
10, the lens that can change the distribution of light emitting diode output intensity on a large scale according to claim 3, it is characterized in that: described top-surface camber is an aspheric surface, he comprises a main curved surface and is located at two outer convex surfaces on the main curved surface symmetrically, described bottom surface comprises a plane and the inner sunken face of driveing on the plane, the lower ending opening of inner sunken face has the straight line of two symmetries, link to each other by two circular arcs between two straight lines, inner fovea part is located at main curved surface central authorities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201169191U CN201407597Y (en) | 2009-03-31 | 2009-03-31 | Lens capable of changing output intensity distribution of light-emitting diode (LED) in large range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201169191U CN201407597Y (en) | 2009-03-31 | 2009-03-31 | Lens capable of changing output intensity distribution of light-emitting diode (LED) in large range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407597Y true CN201407597Y (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201169191U Expired - Fee Related CN201407597Y (en) | 2009-03-31 | 2009-03-31 | Lens capable of changing output intensity distribution of light-emitting diode (LED) in large range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407597Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192471A (en) * | 2010-03-02 | 2011-09-21 | 亿光电子工业股份有限公司 | Optical lens and lighting device comprising same |
| CN102537831A (en) * | 2010-12-22 | 2012-07-04 | 欧司朗有限公司 | Lens and lighting device with same |
| CN102563526A (en) * | 2011-12-28 | 2012-07-11 | 东莞雷笛克光学有限公司 | Light-equalizing lens |
-
2009
- 2009-03-31 CN CN2009201169191U patent/CN201407597Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192471A (en) * | 2010-03-02 | 2011-09-21 | 亿光电子工业股份有限公司 | Optical lens and lighting device comprising same |
| CN102537831A (en) * | 2010-12-22 | 2012-07-04 | 欧司朗有限公司 | Lens and lighting device with same |
| CN102537831B (en) * | 2010-12-22 | 2016-05-11 | 欧司朗股份有限公司 | Lens and the lighting device with these lens |
| EP2656131B1 (en) * | 2010-12-22 | 2018-11-28 | OSRAM GmbH | Lens and illumination apparatus having the same |
| CN102563526A (en) * | 2011-12-28 | 2012-07-11 | 东莞雷笛克光学有限公司 | Light-equalizing lens |
| CN102563526B (en) * | 2011-12-28 | 2014-08-20 | 东莞雷笛克光学有限公司 | Light-equalizing lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20110331 |