CN102654268A - LED (Light-Emitting Diode) lens device, LED lens device module and LED lamp device - Google Patents
LED (Light-Emitting Diode) lens device, LED lens device module and LED lamp device Download PDFInfo
- Publication number
- CN102654268A CN102654268A CN2011100502273A CN201110050227A CN102654268A CN 102654268 A CN102654268 A CN 102654268A CN 2011100502273 A CN2011100502273 A CN 2011100502273A CN 201110050227 A CN201110050227 A CN 201110050227A CN 102654268 A CN102654268 A CN 102654268A
- Authority
- CN
- China
- Prior art keywords
- led
- lens
- light
- parabolic
- bowl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to an LED (Light-Emitting Diode) lens device, an LED lens device module and an LED lamp device. The LED lens device is used for covering the exterior of an LED and controlling the light direction of the LED and comprises a parabolic light-condensing bowl, a collimating lens and a facetted-eye lens system, wherein the collimating lens is arranged in the parabolic light-condensing bowl, and the facetted-eye lens system is arranged at the opening end of the parabolic light-condensing bowl; the focal point of the parabolic light-condensing bowl is coincided with that of the collimating lens; the LED is arranged at the focal point of the parabolic light-condensing bowl; one side of the collimating lens facing the LED is of a free curved surface; the facetted-eye lens system comprises a plurality of facetted-eye lenses which are in arrayed arrangement; the shapes of the facetted-eye lenses are of free curved surfaces; and the projection of the facetted-eye lenses along the axial direction of the parabolic light-condensing bowl is rectangular.
Description
Technical Field
The invention relates to the field of illumination, in particular to an LED lens device, an LED lens device module and an LED lamp.
Background
Compared with the traditional illumination light source, the LED has the advantages of environmental protection, energy conservation, long service life, shock resistance and the like, and along with the improvement of the LED technology, the improvement of the light efficiency stability of the LED light source and the reduction of the price of the LED, the LED illumination is gradually expanded to the urban illumination application from the field of outdoor landscape illumination and road illumination. However, compared with the conventional fluorescent lamp and sodium lamp, the LED lamp has a smaller volume, so that the light-emitting surface is small, which results in a small illumination area. In addition, the light spots formed by the existing LED lamp are circular light spots 6, as shown in fig. 1 and fig. 2, the illuminance distribution of the light spots belongs to lambertian circular distribution, the illuminance at a position close to the center of a circle is strong, the farther away from the center of the circle, the weaker the illuminance, the too strong light at the position close to the center of the circle, glare, and the too dark light at the position far away from the center of the circle are caused, which is not beneficial to the protection of the eyesight of people living in the lighting environment for a long time. The national index requirement on indoor illumination is that the illuminance uniformity is greater than 0.8, and the single-lamp illuminance uniformity of the conventional LED lamp is generally lower than 0.8. In addition, for a rectangular target lighting surface, such as corridor 5, the existing LED lamp forms a circular light spot, so that about 50% of the light is scattered outside corridor 5, as shown in fig. 2, resulting in waste. In addition, when the lamp with a plurality of LEDs is used for illumination, light spots formed on a target illumination surface by the LEDs cannot be seamlessly spliced, as shown in fig. 3, so that the illumination uniformity is low.
Disclosure of Invention
The invention aims to overcome the defects of small illumination area and low illumination uniformity of the conventional LED lamp and provides a lens device which can increase the illumination area of an LED and improve the illumination uniformity.
The LED lens device is used for covering the outside of an LED to control the light direction of the LED, and comprises a parabolic light-gathering bowl, a collimating lens arranged in the parabolic light-gathering bowl and a fly eye lens system arranged at the opening end of the parabolic light-gathering bowl, wherein the focus of the parabolic light-gathering bowl is superposed with the focus of the collimating lens, the LED is arranged at the focus of the parabolic light-gathering bowl, one side of the collimating lens facing the LED is a free curved surface, the part, close to the edge, of the light emitted by the LED is totally reflected by the inner wall of the parabolic light-gathering bowl to form incident light parallel to the axis of the parabolic light-gathering bowl, the part, close to the middle, of the light emitted by the LED is refracted by the collimating lens to form incident light parallel to the axis of the parabolic light-gathering bowl, and the fly eye lens system comprises a plurality of fly eye lenses arranged in an array manner, the fly-eye lens is in a free-form surface shape, the projection of the fly-eye lens along the axis direction of the parabolic light gathering bowl is rectangular, the incident light is refracted by the fly-eye lens to form emergent light, and the emergent light forms rectangular light spots on a target illumination surface.
Preferably, the parabolic light-gathering bowl, the collimating lens and the fly-eye lens system are integrally formed.
More preferably, the parabolic light collecting bowl, the collimating lens and the fly-eye lens system are formed by injection molding of PMMA (polymethyl methacrylate).
Preferably, the generatrix equation of the parabolic light gathering bowl is y24fx, where f is the focal length of the parabolic light gathering bowl.
As a further preference, the free-form surfaces of the collimator lens and the fly-eye lens conform in shape to the equation
Wherein,
wherein
2-light-emitting angle of LED, alpha3Is the angle between the emergent ray and the target illumination surfaceRHalf the length of the rectangular spot.
The invention also provides an LED lens device module which comprises a mounting plate and a plurality of LED lens devices arranged on the mounting plate.
Preferably, the mounting plate is integrally formed with the lens device.
The invention also provides an LED lamp which comprises an aluminum substrate, an LED arranged on the aluminum substrate and the lens device.
The invention also provides another LED lamp which comprises an aluminum substrate, a plurality of LEDs arranged on the aluminum substrate and the LED lens device module, wherein each LED is respectively arranged at the focus of the parabolic light-gathering bowl of each LED lens device of the LED lens device module.
Compared with the prior art, the LED lens device module and the LED lamp have the following beneficial effects:
1. the LED lens device comprises a parabolic light-gathering bowl, a collimating lens arranged in the parabolic light-gathering bowl and a fly eye lens system arranged at the opening end of the parabolic light-gathering bowl, light rays emitted by an LED are converted into light rays parallel to the axis of the parabolic light-gathering bowl through the parabolic light-gathering bowl and the collimating lens, and the light rays refracted out through the fly eye lens projected into a rectangle form a rectangular light spot with large area and uniform brightness on a target illumination surface. Therefore, the lighting area and the illuminance uniformity of the LED lamp are increased, and the glare problem of the LED lamp can be greatly reduced.
2. The parabolic light-gathering bowl, the collimating lens and the fly-eye lens system are integrally formed, so that the LED lens device is simple to manufacture, low in cost and high in precision.
3. The LED lens device module can enable light spots formed by light rays emitted by the LEDs on a target illumination surface to be spliced seamlessly, and illumination uniformity and illumination efficiency of illumination are improved.
Drawings
Fig. 1 is a diagram illustrating an actually measured illuminance effect of a conventional LED lamp;
FIG. 2 is a schematic diagram illustrating the illumination effect of a conventional LED lamp on a corridor;
FIG. 3 is a schematic diagram of the lighting effect of a plurality of existing LED lamps on a corridor;
FIG. 4 is a schematic perspective view of an LED lens device according to the present invention;
FIG. 5 is a schematic top view of an LED lens apparatus of the present invention;
FIG. 6 is a schematic diagram of the light path of the fly-eye lens of the LED lens device according to the present invention for refracting the incident light;
FIG. 7 is a schematic top view of an LED lens device module of the present invention;
FIG. 8 is a graph of the illuminance distribution of the LED lamp of the present invention;
FIG. 9 is a light intensity distribution diagram of an LED lamp having the present invention;
FIG. 10 is a schematic view of the illumination effect of an LED lamp on a corridor according to the present invention;
fig. 11 is a schematic view of the lighting effect of another LED lamp of the present invention on a corridor.
Detailed Description
Fig. 4 is a schematic perspective view of an LED lens device according to the present invention, and fig. 5 is a schematic top view of the LED lens device according to the present invention. As shown in fig. 4 and 5, the LED lens device of the present invention is used for covering an LED to control a light direction of the LED, and includes a parabolic light focusing bowl 1, a collimating lens 2 disposed in the parabolic light focusing bowl 1, and a fly eye lens system 3 disposed at an opening end of the parabolic light focusing bowl 1, a focal point of the parabolic light focusing bowl 1 coincides with a focal point of the collimating lens, the LED is disposed at the focal point of the parabolic light focusing bowl 1, a side of the collimating lens 2 facing the LED is a free curved surface, the fly eye lens system 3 includes a plurality of fly eye lenses 4 arranged in an array, the fly eye lenses 4 are shaped as a free curved surface, and a projection of the fly eye lenses 4 along an axial direction of the parabolic light focusing bowl 1 is rectangular. The LED is placed at the focal point of the parabolic light focusing bowl 1, a part of light emitted by the LED close to the edge is irradiated on the inner surface of the parabolic light focusing bowl 1, and after total reflection, an incident light 16 parallel to the axis of the parabolic light focusing bowl 1 is formed, fig. 6 is a schematic diagram of a light path of the fly eye lens of the LED lens device of the present invention refracting the incident light 16, as shown in fig. 6, the incident light 16 is irradiated at a point t (x, z) of the rectangular free curved surface of the fly eye lens 4 at the edge part of the fly eye lens system 3, and an emergent light 17 intersects with the target illumination surface 14 at a point p (XR, H). N is the normal vector of the incident light 16 and the fly-eye lens. According to the marginal ray theory, the light rays emitted from the edge of the collimating lens are always positioned on the outermost side of the illumination target plane, the light rays are guaranteed not to be staggered after passing through the collimating lens and are always incident on the target illumination surface 14 from outside to inside, the original direction of the light rays refracted out from each fly eye lens 4 is changed, the emergent light rays 17 are formed, and due to the fact that the orthographic projection of the fly eye lenses 4 is rectangular, the emergent light rays 17 form rectangular light spots 7 with large areas on the target illumination surface 14. The part of the light that LED sent is close to the centre takes place the refraction when through collimating lens 2, forms the incident ray 16 parallel with the axis of parabola spotlight bowl 1 after the refraction, incident ray 16 forms emergent ray 17 through the refraction of fly eye lens 4, emergent ray 17 shines and forms rectangle facula 7 on the target finding surface, and the principle is the same as above. Rectangular light spots 7 formed by a plurality of fly-eye lenses 4 are superposed to form a large-area rectangular light spot 7 with an illuminance uniformity of 0.85, as shown in fig. 8 and 9, which are respectively an illuminance distribution diagram and a light intensity distribution diagram of an LED lamp provided with the LED lens device of the present invention and installed at a height of 1.8 meters, wherein a line 11 in fig. 9 represents a light distribution of 0-90 degrees, and a line 12 represents a light distribution of 90-180 degrees. Therefore, the LED lens device can increase the illumination area and the illumination uniformity of the LED and greatly reduce the glare problem of the conventional LED lamp.
In the above embodiment, the parabolic light collecting bowl 1, the collimating lens 2 and the fly eye lens system 3 are integrally formed. The integrally formed LED lens device is simple to manufacture and therefore low in cost and has high precision.
In the above embodiment, the parabolic light focusing bowl 1, the collimating lens 2 and the fly-eye lens system 3 are made of PMMA (polymethyl methacrylate) by injection molding.
In the above embodiment, the generatrix equation of the parabolic light gathering bowl 1 is y24fx, where f is the focal length of the parabolic light focusing bowl 1.
In the above-described embodiment, the shape of the free-form surfaces of the collimator lens and the fly-eye lens conforms to the equation
Wherein,
wherein2-light-emitting angle of LED, alpha3Is the angle between the emergent ray and the target illumination surfaceRHalf the length of the rectangular spot.
Fig. 7 is a schematic top view of the LED lens device module of the present invention, and as shown in fig. 7, the LED lens device module includes a mounting board 8 and a plurality of LED lens devices arranged on the mounting board 8. In this embodiment, the mounting plate 8 and the lens device are integrally formed, and are also formed by injection molding of PMMA. The LED lens device module provided by the invention can realize seamless splicing of light spots formed by light rays emitted by a plurality of LEDs on the target illumination surface 14, and improves illumination uniformity and illumination efficiency.
The invention also provides an LED lamp (not shown in the figure), which comprises an aluminum substrate, an LED arranged on the aluminum substrate and the lens device, wherein the LED is positioned at the focus of the parabolic light-gathering bowl 1 of the lens device. Fig. 10 is a schematic view of the lighting effect of the LED lamp with the LED lens device on the corridor 5 according to the present invention, as shown in fig. 10, the LED lamp with the LED lens device generates rectangular light spots, and the parameters of the LED lens device are adjusted to match the architectural parameters of the corridor 5, so that the rectangular light spots 7 having the same width as the corridor 5 can be generated, that is, the light of the LED lamp with the LED lens device is substantially all irradiated in the corridor 5 and the illuminance is uniform, and compared with the existing LED lamp achieving the same illuminance, the LED lamp with the LED lens device greatly improves the lighting efficiency.
The invention also provides another LED lamp (not shown in the figure), which includes an aluminum substrate, a plurality of LEDs arranged on the aluminum substrate, and the LED lens device module, wherein each LED is respectively arranged at a focus of the parabolic light collecting bowl 1 of each LED lens device of the LED lens device module. The light spots generated by the LED lamp with the LED lens device module can be seamlessly butted on the target illumination surface 14, as shown in fig. 11, so that the illumination uniformity and the illumination efficiency are further improved.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (9)
1. An LED lens device for covering an LED to control the light direction of the LED, characterized in that: the device comprises a parabolic light gathering bowl, a collimating lens arranged in the parabolic light gathering bowl and a fly eye lens system arranged at the opening end of the parabolic light gathering bowl, wherein the focus of the parabolic light gathering bowl is superposed with the focus of the collimating lens, the LED is arranged at the focus of the parabolic light gathering bowl, one side of the collimating lens, facing the LED, is a free curved surface, the light rays emitted by the LED are close to the edge part and form incident light rays parallel to the axis of the parabolic light gathering bowl after being totally reflected by the inner wall of the parabolic light gathering bowl, the light rays emitted by the LED are close to the middle part and form incident light rays parallel to the axis of the parabolic light gathering bowl after being refracted by the collimating lens, the fly eye lens system comprises a plurality of fly eye lenses arranged in an array, the fly eye lenses are in free curved surfaces, and the projection of the fly eye lenses along the axis direction of the parabolic light gathering bowl is rectangular, the incident light is refracted by the fly-eye lens to form emergent light, and the emergent light forms rectangular light spots on the target illumination surface.
2. The LED lens apparatus of claim 1, wherein: the parabolic light-gathering bowl, the collimating lens and the fly-eye lens system are integrally formed.
3. The LED lens apparatus of claim 2, wherein: the parabolic light gathering bowl, the collimating lens and the fly-eye lens system are formed by PMMA injection molding.
4. The LED lens apparatus of claim 1, wherein: the generatrix equation of the parabolic light-gathering bowl is y24fx, where f is the focal length of the parabolic light gathering bowl.
5. The LED lens apparatus of claim 4, wherein: the free-form surfaces of the collimating lens and the fly-eye lens conform to the equation
Wherein,
wherein
Angle of light emission, α3Is the angle between the emergent ray and the target illumination surfaceRHalf the length of the rectangular spot.
6. The utility model provides a LED lens device module which characterized in that: comprising a mounting board and a plurality of LED lens arrangements according to any of claims 1-5 arranged on said mounting board.
7. The LED lens device module of claim 6, wherein: the mounting plate and the lens device are integrally formed.
8. An LED lamp, characterized in that: comprising an aluminum substrate, an LED provided on said aluminum substrate and a lens arrangement as claimed in any one of claims 1 to 5.
9. An LED lamp, characterized in that: comprising an aluminum substrate, a plurality of LEDs disposed on the aluminum substrate, and the LED lens device module of claim 8, wherein each of the LEDs is disposed at a focus of the parabolic light gathering bowl of each LED lens device of the LED lens device module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100502273A CN102654268A (en) | 2011-03-02 | 2011-03-02 | LED (Light-Emitting Diode) lens device, LED lens device module and LED lamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100502273A CN102654268A (en) | 2011-03-02 | 2011-03-02 | LED (Light-Emitting Diode) lens device, LED lens device module and LED lamp device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102654268A true CN102654268A (en) | 2012-09-05 |
Family
ID=46729939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100502273A Pending CN102654268A (en) | 2011-03-02 | 2011-03-02 | LED (Light-Emitting Diode) lens device, LED lens device module and LED lamp device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102654268A (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103656868A (en) * | 2013-12-12 | 2014-03-26 | 中国科学院苏州生物医学工程技术研究所 | Neonatal jaundice therapeutic equipment optical device based on LED light source |
| CN103872228A (en) * | 2012-12-11 | 2014-06-18 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting-diode combination |
| CN104019426A (en) * | 2013-09-05 | 2014-09-03 | 四川通盈能源开发有限公司 | Integrated light distribution lens for LED street lamp |
| CN104061453A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | LED lamps and their light source structure |
| CN104075250A (en) * | 2013-03-29 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Light distribution structure and LED lamp thereof |
| CN104180302A (en) * | 2013-05-28 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Lamp and lens thereof |
| WO2015014062A1 (en) * | 2013-07-31 | 2015-02-05 | 华南理工大学 | Free-form surface micro lens array for led headlamp of automobile |
| CN104676475A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Led light distribution lens and led lamp |
| CN104676467A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Lens and LED (light emitting diode) lamp with lens |
| CN105465646A (en) * | 2016-01-14 | 2016-04-06 | 浙江晶日照明科技有限公司 | LED optics structure capable of achieving conversion between round light spots and square light spots |
| CN105570832A (en) * | 2014-10-15 | 2016-05-11 | 比亚迪股份有限公司 | Led lens |
| CN105749428A (en) * | 2016-02-23 | 2016-07-13 | 天津工业大学 | Free-form surface type neonatal jaundice phototherapy lighting system |
| CN105782905A (en) * | 2016-05-05 | 2016-07-20 | 上海理工大学 | LED lens designing method capable of achieving hexagon uniform illumination |
| CN104180304B (en) * | 2013-05-28 | 2017-02-22 | 海洋王（东莞）照明科技有限公司 | LED (Light Emitting Diode) lamp and light distribution lens thereof |
| CN106931402A (en) * | 2016-12-14 | 2017-07-07 | 江西科技师范大学 | A kind of LED traffic signal light lens mask |
| CN107013884A (en) * | 2017-05-31 | 2017-08-04 | 杭州光锥科技有限公司 | Projecting Lamp lens, light emitting module and Projecting Lamp with the Projecting Lamp lens |
| CN107062157A (en) * | 2017-05-31 | 2017-08-18 | 杭州光锥科技有限公司 | Underground lamp lens, light emitting module and underground lamp with the underground lamp lens |
| CN108227204A (en) * | 2018-01-26 | 2018-06-29 | 宁波正特光学电器有限公司 | A kind of VR glasses with night vision function |
| CN109958928A (en) * | 2019-03-18 | 2019-07-02 | 山东方星光电科技有限公司 | Anti-dazzle mesh LED blackboard lamp |
| CN113266779A (en) * | 2021-05-26 | 2021-08-17 | 嘉兴追光智能科技有限公司 | Light beam collimation module and lighting lamp |
-
2011
- 2011-03-02 CN CN2011100502273A patent/CN102654268A/en active Pending
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872228A (en) * | 2012-12-11 | 2014-06-18 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting-diode combination |
| CN104061453B (en) * | 2013-03-21 | 2016-02-10 | 海洋王（东莞）照明科技有限公司 | LED lamp and light source structure thereof |
| CN104061453A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | LED lamps and their light source structure |
| CN104075250A (en) * | 2013-03-29 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Light distribution structure and LED lamp thereof |
| CN104180302A (en) * | 2013-05-28 | 2014-12-03 | 海洋王（东莞）照明科技有限公司 | Lamp and lens thereof |
| CN104180304B (en) * | 2013-05-28 | 2017-02-22 | 海洋王（东莞）照明科技有限公司 | LED (Light Emitting Diode) lamp and light distribution lens thereof |
| WO2015014062A1 (en) * | 2013-07-31 | 2015-02-05 | 华南理工大学 | Free-form surface micro lens array for led headlamp of automobile |
| CN104019426A (en) * | 2013-09-05 | 2014-09-03 | 四川通盈能源开发有限公司 | Integrated light distribution lens for LED street lamp |
| CN104676467A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Lens and LED (light emitting diode) lamp with lens |
| CN104676475A (en) * | 2013-11-29 | 2015-06-03 | 海洋王（东莞）照明科技有限公司 | Led light distribution lens and led lamp |
| CN103656868A (en) * | 2013-12-12 | 2014-03-26 | 中国科学院苏州生物医学工程技术研究所 | Neonatal jaundice therapeutic equipment optical device based on LED light source |
| CN105570832A (en) * | 2014-10-15 | 2016-05-11 | 比亚迪股份有限公司 | Led lens |
| CN105570832B (en) * | 2014-10-15 | 2019-05-17 | 比亚迪股份有限公司 | LED lens |
| CN105465646B (en) * | 2016-01-14 | 2019-01-18 | 浙江晶日照明科技有限公司 | A kind of LED light structure of achievable circular light spot and square focus spot transformation |
| CN105465646A (en) * | 2016-01-14 | 2016-04-06 | 浙江晶日照明科技有限公司 | LED optics structure capable of achieving conversion between round light spots and square light spots |
| CN105749428A (en) * | 2016-02-23 | 2016-07-13 | 天津工业大学 | Free-form surface type neonatal jaundice phototherapy lighting system |
| CN105749428B (en) * | 2016-02-23 | 2018-04-06 | 天津工业大学 | A kind of free form surface formula Neonatal jaundice phototherapy illuminator |
| CN105782905A (en) * | 2016-05-05 | 2016-07-20 | 上海理工大学 | LED lens designing method capable of achieving hexagon uniform illumination |
| CN106931402A (en) * | 2016-12-14 | 2017-07-07 | 江西科技师范大学 | A kind of LED traffic signal light lens mask |
| CN107013884A (en) * | 2017-05-31 | 2017-08-04 | 杭州光锥科技有限公司 | Projecting Lamp lens, light emitting module and Projecting Lamp with the Projecting Lamp lens |
| CN107062157A (en) * | 2017-05-31 | 2017-08-18 | 杭州光锥科技有限公司 | Underground lamp lens, light emitting module and underground lamp with the underground lamp lens |
| CN107062157B (en) * | 2017-05-31 | 2023-02-10 | 浙江光锥科技有限公司 | Underground lamp lens, light emitting module with same and underground lamp |
| CN108227204A (en) * | 2018-01-26 | 2018-06-29 | 宁波正特光学电器有限公司 | A kind of VR glasses with night vision function |
| CN109958928A (en) * | 2019-03-18 | 2019-07-02 | 山东方星光电科技有限公司 | Anti-dazzle mesh LED blackboard lamp |
| CN109958928B (en) * | 2019-03-18 | 2022-05-13 | 山东方星光电科技有限公司 | Anti-dazzle mesh LED blackboard lamp |
| CN113266779A (en) * | 2021-05-26 | 2021-08-17 | 嘉兴追光智能科技有限公司 | Light beam collimation module and lighting lamp |
| CN113266779B (en) * | 2021-05-26 | 2023-04-07 | 嘉兴追光智能科技有限公司 | Light beam collimation module and lighting lamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102654268A (en) | LED (Light-Emitting Diode) lens device, LED lens device module and LED lamp device | |
| US8419215B2 (en) | LED lamp and street lamp using the same | |
| US8465173B2 (en) | LED lamp and street lamp using the same | |
| CN102853374B (en) | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp | |
| AU2015238892A1 (en) | An optical lens and a miner's helmet lamp | |
| CN105333318A (en) | Wide Angle LED Lighting Unit | |
| CN105627252A (en) | LED arched lens with long and narrow light spot | |
| CN107013884A (en) | Projecting Lamp lens, light emitting module and Projecting Lamp with the Projecting Lamp lens | |
| TWI471616B (en) | Lens module for light emitting diode light source | |
| CN104295967B (en) | LED multifaceted light-emitting planar light source | |
| CN204986700U (en) | LED spotlight | |
| CN210118645U (en) | Collimated light source system | |
| US8371725B2 (en) | Shaped optical prism structure | |
| WO2010133094A1 (en) | Non-imaging optical directed light distributing method for led illumination light source | |
| CN102901045A (en) | Fresnel lens for high-power light-emitting diode (LED) light source | |
| CN205979623U (en) | Medical treatment shadowless lamp lens | |
| TWM473473U (en) | LED streetlamp lens module | |
| CN104676467A (en) | Lens and LED (light emitting diode) lamp with lens | |
| CN220707158U (en) | Reflection and refraction high-light-efficiency combined lamp cup | |
| KR102115834B1 (en) | Optical lens for led luminaire | |
| CN202835182U (en) | Fresnel lens for LED light source with high power | |
| EP2400212A2 (en) | LED lamp forming light distribution mode of approximate parallel optical array by using lenses | |
| CN207080826U (en) | A compound total reflection LED spotlight lens | |
| CN202835187U (en) | Improved structure of the reflector cup to enhance the spotlight effect | |
| CN214948814U (en) | Airport taxiway lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120905 |