CN102788318B - Lens for light distribution of LED (light emitting diode) lamp and lamp thereof - Google Patents
Lens for light distribution of LED (light emitting diode) lamp and lamp thereof Download PDFInfo
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- CN102788318B CN102788318B CN201210314333.2A CN201210314333A CN102788318B CN 102788318 B CN102788318 B CN 102788318B CN 201210314333 A CN201210314333 A CN 201210314333A CN 102788318 B CN102788318 B CN 102788318B
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Abstract
The invention discloses a lens for light distribution of an LED (light emitting diode) lamp. The lens is bowl-shaped and the side face of the lens is a reflection face, an opening for mounting an LED light source is arranged at the small end of the lens, N layers of emergent faces are arranged at the surface of the big end of the lens, N is an integer more than or equal to 2, and each layer of emergent face is gradually deflected towards the same side. The lens for light distribution of LED lamp disclosed by the invention enables the emergent ray of the LED to be ejected along a certain angle, the emergent rays gradually irradiate the region to be illuminated, and a light-shade separation line is obviously formed at the edge of the illuminating field, so that the geometrical utilization efficiency of optical energy is improved.
Description
Technical field
The present invention relates to a kind of LED light fixture, lens and light fixture thereof that particularly a kind of LED lamp distribution is used.
Background technology
LED, as novel energy-conserving light source, has been widely used in various light fixtures, as indoor projection lamp, outdoor street lamp etc., for the light fixture of such illumination occasion, in the edge of illuminated field illumination, is generally slowly to change.
And when the illumination in specified scope, as large-scale outdoor signboard and lamp box advertisement, need the scope of illumination very clear and definite, if the lighting system that still adopts edge illumination slowly to change, guarantee again the uniformity of illumination simultaneously, having most of light to be irradiated to needs outside field of illumination, will cause like this significant wastage of energy; There are in addition some illumination occasions to require to form obvious light and shade by line at illuminated field, as the lower beam illumination of automobile and motorcycle.How for above-mentioned lighting demand design LED light fixture and LED lamp distribution lens, become present GeLED lamps & lanterns factory problem demanding prompt solution.
Summary of the invention
The object of the invention is to according to the demand of above-mentioned illumination occasion, a kind of LED light fixture is provided, be allowed to condition at illuminated field edge and form clearly light and shade by line, improve how much utilization ratios of luminous energy of the wall lamp that the advertisement out of doors of LED light fixture, advertising lamp box and architectural lighting uses, expand LED light fixture as the range of application of the lower beam illumination of automobile, motorcycle and other field.
In order to realize foregoing invention object, the invention provides following technical scheme:
The lens that LED lamp distribution is used, described lens shape is bowl shape, described lens side is reflecting surface, described lens small end offers the opening that LED light source is installed, the large end surfaces of lens has N layer exit facet, and N is more than or equal to 2 integer, each layer of exit facet deflection gradually towards the same side.The large end surfaces of lens adopts this layer structure, the light that LED light source sends reflects with continuous successively different angle at the large end surfaces of lens, emergent light penetrates along certain angle scope, the light of outgoing is mapped to the region that needs illumination successively gradually, at the edge of illuminated field, form obvious light and shade by line, improved how much utilization ratios of luminous energy.
Preferably, described each layer exit facet comprises annular or circular exit facet.The high-quality light of the outer shroud outgoing of the large end of lens forms obvious light and shade by line at the edge of illuminated field, the light of other ring outgoing of the large end of lens is mapped to the zone line of field of illumination successively gradually, by changing quantity, shape and the deflection angle of endless belt, adjust the uniformity of field of illumination, with light and shade by the illumination zone of the perpendicular direction of line and light and shade by the readability of line, improved how much utilization ratios of luminous energy.
Preferably, the surface of each layer of exit facet of the large end of described lens consists of a plurality of cylinders, by changing face shape parameter and the quantity of cylinder, can change light and shade by line the length of illuminated field and at illuminated field in light and shade the illumination zone by line direction.
Preferably, the bottom surface of the opening of described lens small end is plane of refraction.
Preferably, the opening bilateral symmetry of described lens small end is provided with positioning convex, is convenient to the installation location of these lens.
The present invention also provides the LED light fixture of the lens that a kind of LED of use lamp distribution uses, and its specific implementation is such: drive circuit and heat abstractor that LED light source, LED light source are set at described lens small end opening part form.
compared with prior art, beneficial effect of the present invention:
The large end surfaces of the lens that LED lamp distribution of the present invention is used has N layer exit facet, each layer of exit facet is inclined to one side gradually towards the same side, adopt the layer structure surface of this angle gradient, the light that LED light source sends reflects with continuous successively different angle at the large end surfaces of lens, emergent light penetrates along certain angle scope, the light of outgoing is mapped to the region that needs illumination successively gradually, at the edge of illuminated field, forms obvious light and shade by line, has improved the geometry utilization ratio of luminous energy.In preferred version of the present invention, each layer of exit facet comprises that the surface of annular or the exit facet of circle and each layer of exit facet of the large end of lens consists of a plurality of cylinders, adopt these lens to carry out luminous intensity distribution, the high-quality light of the outer shroud outgoing of the large end of lens forms obvious light and shade by line at the edge of illuminated field, light of other ring outgoing of the large end of lens are penetrated the zone line that is mapped to gradually successively field of illumination.Can improve like this geometry utilization ratio of outdoor advertisement lighting, lamp box advertisement illumination and architectural lighting.Can expand like this LED light fixture in the application in fields such as automobile, motorcycle lower beam illumination.
accompanying drawing explanation:
Fig. 1 is specific embodiment of the invention LED lens profile structural representation.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the stereogram of specific embodiment of the invention LED lens.
Mark in figure: 1-lens, 2-opening, the large end of 3-lens, 31-cylinder, 4-wing limit, 5-positioning convex.
The specific embodiment
Below in conjunction with test example and the specific embodiment, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on content of the present invention all belong to scope of the present invention.
embodiment 1
As shown in Figures 1 to 4, the lens 1 that the LED lamp distribution of the present embodiment is used, described lens 1 are shaped as bowl shape, and the side of described lens 1 is reflecting surface.Described lens 1 small end offers the opening 2 that LED light source (not shown) is installed, and described opening 2 can be circular arc, the conical surface etc.The large end of lens 3 surfaces have N layer exit facet, and N is more than or equal to 2 integer, and in the present embodiment, N gets 4, each layer of exit facet deflection gradually towards the same side.The large end of lens 3 surfaces adopt this layer structure, the light that LED light source sends reflects with continuous successively different angle on the large end of lens 3 surfaces, emergent light penetrates along certain angle scope, the light of outgoing is mapped to the region that needs illumination successively gradually, at the edge of illuminated field, form obvious light and shade by line, improved how much utilization ratios of luminous energy.
Preferably, each layer of exit facet deflection predetermined angular, gradually deflection successively.Described each layer exit facet is annular or circular exit facet.The high-quality light of the large end 3 outer shroud outgoing of lens forms obvious light and shade by line at the edge of illuminated field, the light of large end 3 other ring outgoing of lens is penetrated the zone line that is mapped to gradually successively field of illumination, by changing shape and the deflection angle of endless belt, adjust the uniformity of field of illumination, with light and shade by the illumination zone of the perpendicular direction of line and light and shade the readability by line.The surface of each layer of exit facet of the large end 3 of described lens consists of a plurality of cylinders 31, by changing face shape parameter and the quantity of cylinder 31, can change light and shade by line the length of illuminated field and illuminated field in light and shade the illumination zone by line direction.The large end 3 of lens stretches out along outermost ring surface edge and forms wing limit 4.The bottom surface of the opening 2 of described lens 1 small end is plane of refraction.Opening 2 bilateral symmetry of described lens 1 small end are provided with positioning convex 5, are convenient to the installation location of these lens 1.
embodiment 2
As shown in Figure 1, the LED light fixture of the lens that the use LED lamp distribution of the present embodiment is used comprises the full content of embodiment 1, and drive circuit and heat abstractor that LED light source (not shown), LED light source are set at described lens 1 small end opening 2 places form (not shown).The light that LED light source sends is on the large end of described lens 3 surfaces with continuous successively different angle refraction, and emergent light penetrates along certain angle scope.The high-quality light of the large end 3 outer shroud outgoing of lens forms obvious light and shade by line at the edge of illuminated field, the light of large end 3 other ring outgoing of lens is penetrated the zone line that is mapped to gradually successively field of illumination, by changing shape and the deflection angle of endless belt, adjust the uniformity of field of illumination, with light and shade by the illumination zone of the perpendicular direction of line and light and shade the readability by line.The surface of each layer of exit facet of the large end 3 of described lens is cylinder 31, by changing face shape parameter and the quantity of cylinder 31, can change light and shade by line the length of illuminated field and at illuminated field in light and shade the illumination zone by line direction.
This LED light fixture can be applicable to have clear and definite illumination zone as outdoor advertisement lighting, lamp box advertisement illumination and architectural lighting.LED light fixture can expand the application in fields such as automobile, motorcycle lower beam illumination like this.
The foregoing is only preferred embodiment of the present invention, not in order to limit 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., within all should being included in protection scope of the present invention.
Claims (6)
1. lens that LED lamp distribution is used, described lens shape is bowl shape, it is characterized in that: described lens side is reflecting surface, described lens small end offers the opening that LED light source is installed, the large end surfaces of lens has N layer exit facet, N is more than or equal to 2 integer, each layer of exit facet deflection gradually towards the same side, and each layer of exit facet be deflection predetermined angular successively.
2. the lens that LED lamp distribution according to claim 1 is used, is characterized in that: described each layer exit facet comprises annular or circular exit facet.
3. the lens that LED lamp distribution according to claim 2 is used, is characterized in that: the surface of each layer of exit facet of the large end of described lens consists of a plurality of cylinders.
4. the lens that LED lamp distribution according to claim 1 is used, is characterized in that: the bottom surface of the opening of described lens small end is plane of refraction.
5. the lens of using according to the LED lamp distribution described in claim 1 to 4 any one, is characterized in that: the opening bilateral symmetry of described lens small end is provided with positioning convex.
6. a LED light fixture for lens described in right to use requirement 1 to 5 any one, is characterized in that: described lens small end opening part arranges drive circuit and the heat abstractor of LED light source, LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314333.2A CN102788318B (en) | 2012-08-30 | 2012-08-30 | Lens for light distribution of LED (light emitting diode) lamp and lamp thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314333.2A CN102788318B (en) | 2012-08-30 | 2012-08-30 | Lens for light distribution of LED (light emitting diode) lamp and lamp thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788318A CN102788318A (en) | 2012-11-21 |
| CN102788318B true CN102788318B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210314333.2A Active CN102788318B (en) | 2012-08-30 | 2012-08-30 | Lens for light distribution of LED (light emitting diode) lamp and lamp thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851546B (en) * | 2012-11-30 | 2017-07-14 | 深圳市海洋王照明工程有限公司 | Light-source structure and the runway alert lamp containing the light-source structure |
| CN111237711A (en) * | 2018-11-29 | 2020-06-05 | 深圳市绎立锐光科技开发有限公司 | Light source system and lighting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476695A (en) * | 2009-01-21 | 2009-07-08 | 陈哲艮 | Lens of LED light source for road lamp and road lamp using the same |
| US7618162B1 (en) * | 2004-11-12 | 2009-11-17 | Inteled Corp. | Irradiance-redistribution lens and its applications to LED downlights |
| CN201852037U (en) * | 2010-11-24 | 2011-06-01 | 霍永峰 | Lens for light distribution of light emitting diode (LED) illumination lamp and lamp thereof |
| CN201875629U (en) * | 2010-10-28 | 2011-06-22 | 深圳市朗恒电子有限公司 | Novel lens |
| CN102252266A (en) * | 2011-07-02 | 2011-11-23 | 重庆科鹰电气有限公司 | Light-emitting diode (LED) lens of automobile |
| CN202382168U (en) * | 2011-12-28 | 2012-08-15 | 广州市雅江光电设备有限公司 | Multi-color light-mixing condensing lens with small angle and high efficiency |
-
2012
- 2012-08-30 CN CN201210314333.2A patent/CN102788318B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7618162B1 (en) * | 2004-11-12 | 2009-11-17 | Inteled Corp. | Irradiance-redistribution lens and its applications to LED downlights |
| CN101476695A (en) * | 2009-01-21 | 2009-07-08 | 陈哲艮 | Lens of LED light source for road lamp and road lamp using the same |
| CN201875629U (en) * | 2010-10-28 | 2011-06-22 | 深圳市朗恒电子有限公司 | Novel lens |
| CN201852037U (en) * | 2010-11-24 | 2011-06-01 | 霍永峰 | Lens for light distribution of light emitting diode (LED) illumination lamp and lamp thereof |
| CN102252266A (en) * | 2011-07-02 | 2011-11-23 | 重庆科鹰电气有限公司 | Light-emitting diode (LED) lens of automobile |
| CN202382168U (en) * | 2011-12-28 | 2012-08-15 | 广州市雅江光电设备有限公司 | Multi-color light-mixing condensing lens with small angle and high efficiency |
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| Publication number | Publication date |
|---|---|
| CN102788318A (en) | 2012-11-21 |
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Application publication date: 20121121 Assignee: CHENGDU HENGKUN OPTICAL-ELECTRONIC TECHNOLOGY Co.,Ltd. Assignor: Huo Yongfeng Contract record no.: 2014510000071 Denomination of invention: Lens for light distribution of LED (light emitting diode) lamp and lamp thereof Granted publication date: 20140507 License type: Exclusive License Record date: 20140704 |
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