CN103836420A - LED lamp - Google Patents
LED lamp Download PDFInfo
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- CN103836420A CN103836420A CN201410103004.2A CN201410103004A CN103836420A CN 103836420 A CN103836420 A CN 103836420A CN 201410103004 A CN201410103004 A CN 201410103004A CN 103836420 A CN103836420 A CN 103836420A
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- face
- light
- diffuser plate
- light fixture
- led light
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Abstract
The invention discloses an LED lamp. The LED lamp comprises a light emitting module and a diffusion plate, and further comprises a scattering module corresponding to the diffusion plate, wherein the scattering module is used for enlarging the scattering angle of light, and a light mixing cavity is formed between the diffusion plate and the scattering module. By the arrangement of the scattering module, the transmission mode of light can be changed, the total-reflection mode is changed to the transmission mode with reflection and refraction combined, the scattering angle of light can be enlarged, light can be evenly emitted out via the diffusion plate, then light losses can be reduced, and the lighting effect of the LED lamp can be improved.
Description
Technical field
The present invention relates to lighting technical field, particularly relate to a kind of LED light fixture.
Background technology
Along with LED(light emitting diode) technology increasingly mature, the advantages such as volume is little, power consumption is low because having for LED, long service life, high brightness, low in calories, environmental protection, sturdy and durable, changeable, be called as after incandescent lamp, sodium vapor lamp, fluorescent lamp the 4th generation light source, be widely used in various indoor, outdoor display screens, in the view and white-light illuminating of the building such as traffic signals, tunnel, mansion, outdoor billboard, park night scene, airport, subway, elevated overpass.
In existing LED light fixture, LED lamp is connected with pcb board (printed circuit board (PCB)), and the light that LED lamp sends can be transmitted to diffuser plate after LGP carries out total reflection, is transmitted in external environment via the refraction action of diffuser plate.
But there is multiple total reflection phenomenon in the light sending due to LED lamp, can cause light loss in light-passing board, finally cause light efficiency effect poor, as low in brightness, shadow surface has shade etc.
Summary of the invention
In view of this, the object of this invention is to provide a kind of LED light fixture, the light that can make LED lamp send evenly penetrates, and improves the light efficiency of LED light fixture.
The invention provides a kind of LED light fixture, comprise light emitting module and diffuser plate, also comprise the diffuse transmission module being oppositely arranged with described diffuser plate, described diffuse transmission module, for expanding the scattering angle of light, is provided with mixed light chamber between described diffuser plate and described diffuse transmission module.
Preferably, described diffuse transmission module comprises LGP and the total reflecting destructive part that is arranged at described LGP, and described total reflecting destructive part is arranged at the end face of described LGP away from described diffuser plate; Described diffuse transmission module also comprises diffuser, and described diffuser and described total reflecting destructive part are oppositely arranged and described diffuser is arranged at the end face of described LGP near described diffuser plate.
Preferably, described diffuser is concave panel, and described concave panel is towards the direction depression away from described diffuser plate.
Preferably, described total reflecting destructive part and described diffuser are all uniformly distributed along the length direction of described LGP.
Preferably, described diffuse transmission module is spill end face with the relative end face of described light emitting module, and described female end is facing to the direction depression away from described light emitting module; Described diffuse transmission module is convex end face near the end face of described diffuser plate, and described convex is towards the direction projection near described diffuser plate.
Preferably, described male end face comprises the first convex end face and the second convex end face, and described the first convex end face is positioned at same straight line with the minimum point of be connected contact and the described spill end face of the symmetrical setting of described the second convex end face and described the first convex end face and described the second convex end face.
Preferably, it is characterized in that, the chamber wall in described mixed light chamber is provided with reflective sheeting.
Preferably, the angle between chamber wall and the described light-passing board in described mixed light chamber is acute angle.
Preferably, described light emitting module comprises LED lamp and pcb board, and described LED lamp is arranged at described pcb board.
Preferably, also comprise radiating piece, described radiating piece is connected with described pcb board.
A kind of LED light fixture provided by the present invention, comprises light emitting module and diffuser plate, also comprises the diffuse transmission module being oppositely arranged with diffuser plate, and diffuse transmission module, for expanding the scattering angle of light, is provided with mixed light chamber between diffuser plate and diffuse transmission module.Compared with prior art, by diffuse transmission module is set, the circulation way that can change light is propagated total reflection to change reflection into and reflect the circulation way combining, can expand the scattering angle of light, and via diffuser plate, light is evenly penetrated, and then can reduce light loss, improve the light efficiency of LED light fixture.
Brief description of the drawings
Fig. 1 is the structural representation of LED light fixture in embodiment mono-provided by the present invention;
Fig. 2 is the schematic diagram of the index path after the partial structurtes of LED light fixture shown in Fig. 1 are amplified;
Fig. 3 is the structural representation of LED light fixture in embodiment bis-provided by the present invention;
Fig. 4 is the schematic diagram of the index path after the partial structurtes of LED light fixture shown in Fig. 3 are amplified;
Wherein, in Fig. 1 and Fig. 2:
LED lamp 1-1, pcb board 1-2, diffuser plate 1-3, LGP 1-4, total reflecting destructive part 1-5, diffuser 1-6, mixed light chamber 1-7, chamber wall 1-8, radiating piece 1-9;
In Fig. 3 to Fig. 4:
LED lamp 2-1, pcb board 2-2, diffuser plate 2-3, spill end face 2-4, the first convex end face 2-5, the second convex end face 2-6, mixed light chamber 2-7, chamber wall 2-8, radiating piece 2-9.
Detailed description of the invention
Core of the present invention is to provide a kind of LED light fixture, and the light that can make LED lamp send evenly penetrates, and improves the light efficiency of LED light fixture.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment mono-
Please refer to 1 and Fig. 2, Fig. 1 is the structural representation of LED light fixture in embodiment mono-provided by the present invention, and Fig. 2 is the schematic diagram of the index path after the partial structurtes of LED light fixture shown in Fig. 1 are amplified, and the arrow in Fig. 2 represents the direction of propagation of light.
In this detailed description of the invention, a kind of LED lamp is provided, comprise by LED lamp 1-1 and pcb board 1-2(printed circuit board (PCB)) light emitting module, the diffuser plate 1-3 forming and the diffuse transmission module being oppositely arranged with diffuser plate 1-3, diffuse transmission module comprises LGP 1-4, is all arranged at total reflecting destructive part 1-5 and the diffuser 1-6 of LGP 1-4, and wherein total reflecting destructive part 1-5 is arranged at the end face of LGP 1-4 away from diffuser plate 1-3; Diffuser 1-6 and total reflecting destructive part 1-5 are oppositely arranged and diffuser 1-6 is arranged at the end face of LGP 1-4 near diffuser plate 1-3.Between diffuser plate 1-3 and diffuse transmission module, be provided with mixed light chamber 1-7.
So arrange, the light that LED lamp 1-1 sends is propagated (because the surface of LGP is provided with reflective membrane in LGP 1-4, therefore there is total reflection in light in LGP), in the time that light arrives total reflecting destructive part 1-5, total reflecting destructive part 1-5 can destroy the total emission that light carries out in LGP 1-4, after total reflecting destructive part 1-5, light can reflect via different reflection angles, some light being reflected can continue to carry out total reflection along LGP 1-4, until arrive other diffuser 1-6, penetrate via diffuser 1-6; The remaining light that is reflected can irradiate in diffuser 1-6, and refracts to mixed light chamber 1-7 via diffuser 1-6, and in the 1-7 of mixed light chamber, two parts light can mix, and penetrates via diffuser plate 1-3, ensures uniformity when light penetrates.
Due to the effect of total reflecting destructive part 1-5, can destroy the total reflection of light in LGP 1-4, so can change the propagation angle of light, and make light can be transmitted to diffuser 1-6; Diffuser 1-6 can expand the refraction angle of light, and then can expand the irradiating angle of light, ensures the uniformity of light simultaneously.Owing to being provided with total reflecting destructive part 1-5 and diffuser 1-6 in LGP 1-4, can reducing light at LGP 1-4 inner total reflection number of times, thereby can reduce light loss, and then can improve light efficiency.
In addition, in this detailed description of the invention, diffuser 1-6 is the concave panel that is arranged at LGP 1-4, this concave panel is towards the direction depression away from diffuser plate 1-3, so, because concave panel has the effect of refraction angle that changes light, can expand the refraction angle of light, and then expand the irradiating angle of light; The breakdown point that total reflecting destructive part 1-5 forms for the surface at diffuser plate adopts laser to carve or the painting point that adopts spary technology to form, breakdown point or painting point are along a surface distributed for diffuser plate, because breakdown point or the setting that is coated with point cause the surperficial flatness difference of diffuser plate, and then cause light that total reflection can not occur, thereby change the reflection angle of light, and then can change light and expose to the incident angle of diffuser.It should be noted that, in this detailed description of the invention, diffuser 1-6 is the concave panel that is arranged at LGP 1-4, certainly, does not also get rid of directly LGP and is set to concave panel near the end face of diffuser plate.
In further scheme, because LGP 1-4 has certain length, and light emitting module is arranged at respectively two ends of LGP 1-4, therefore, reduce light loss, in this detailed description of the invention, diffuser 1-6 and total reflecting destructive part 1-5 are all uniformly distributed along the length direction of LGP 1-4, can carry out refraction and reflection repeatedly to light with this, make light all enter mixed light chamber 1-7, finally evenly spread out of via diffuser plate 1-3.
In scheme further, the angle that the chamber wall 1-8 of mixed light chamber 1-7 is provided with between chamber wall 1-8 and the light-passing board of reflective sheeting and mixed light chamber 1-7 is acute angle, so, under effect via reflective sheeting, the light that exposes to chamber wall 1-8 can be reflected onto diffuser plate 1-3, and then can further reduce light loss, improve light efficiency.Angle between chamber wall 1-8 and diffuser plate 1-3 is set to acute angle simultaneously, can further ensure that the light in the 1-7 of mixed light chamber evenly penetrates, and further improves light efficiency.
In addition, cause the accumulation of heat for fear of long-time use of pcb board 1-2, in this detailed description of the invention, also be provided with radiating piece 1-9, radiating piece 1-9 is connected with pcb board 1-2, the heat that so pcb board 1-2 can be produced via radiating piece 1-9 conducts, and reduces the heat build-up of pcb board 1-2, ensures the normal use of light emitting module.
Embodiment bis-
Please refer to 3 and Fig. 4, Fig. 3 is the structural representation of LED light fixture in embodiment bis-provided by the present invention, and Fig. 4 is the schematic diagram of the index path after the partial structurtes of LED light fixture shown in Fig. 3 are amplified, and the arrow in Fig. 4 represents the direction of propagation of light.
In this detailed description of the invention, a kind of LED light fixture is provided, comprise by LED lamp 2-1 and pcb board 2-2(printed circuit board (PCB)) light emitting module, the diffuser plate 2-3 forming and the diffuse transmission module being oppositely arranged with diffuser plate 2-3, between diffuser plate 2-3 and diffuse transmission module, be provided with mixed light chamber 2-7.Diffuse transmission module is spill end face 2-4 with the relative end face of light emitting module, and spill end face 2-4 is towards the direction depression away from light emitting module; Diffuse transmission module is convex end face near the end face of diffuser plate 2-3, and convex is towards the direction projection near diffuser plate 2-3.
So arrange, when the light that LED lamp 2-1 sends exposes to the spill end face 2-4 of diffuse transmission module, because the curvature of spill end face 2-4 is different, therefore it is different that light exposes to the angle of spill end face 2-4, refraction angle is not identical yet simultaneously, therefore light arrives the angle difference of convex end face, because male end mask has the effect of light diffusion, in the time that light arrives convex end face, under the effect of convex end face, light is penetrated with different refraction angles, be transmitted to mixed light chamber 2-7, then evenly penetrate via diffuser plate 2-3.
Due to the setting of spill end face 2-4 and convex end face, light is played to the effect of dispersing, can improve the irradiating angle of light, and owing to directly utilizing spill end face 2-4 to carry out the refraction of light, can reduce light loss, and then can improve light efficiency.
In further scheme, male end face comprises the first convex end face 2-5 and the second convex end face 2-6, the first convex end face 2-5 and the second convex end face 2-6 want to be symmetrical arranged, and the minimum point of the tie point of the first convex end face 2-5 and the second convex end face 2-6 and spill end face 2-4 is positioned at same straight line, this straight line is the line of symmetry of the first convex end face 2-5 and the second convex end face 2-6.So arrange, by the first convex end face 2-5 and the second convex end face 2-6 are set, can expand the ejaculation angle of light, and then can expand the irradiating angle of light, improve light efficiency.
It should be noted that, in this detailed description of the invention, adopt the first convex end face 2-5 of symmetrical setting and the second convex end face 2-6 as the convex end face of diffuse transmission module according to user demand, certainly, also can adopt according to actual conditions other convex end face.
In further scheme, be provided with two light emitting modules, two adjacent settings of light emitting module, are provided with and the light emitting module diffuse transmission module of corresponding setting one by one equally, certainly, also can multiple light emitting modules be set according to actual user demand.
In scheme further, the angle that the chamber wall 2-8 of mixed light chamber 2-7 is provided with between chamber wall 2-8 and the light-passing board of reflective sheeting and mixed light chamber 2-7 is acute angle, so, under effect via reflective sheeting, the light that exposes to chamber wall 2-8 can be reflected onto diffuser plate 2-3, and then can further reduce light loss, improve light efficiency.Angle between chamber wall 2-8 and diffuser plate 2-3 is set to acute angle simultaneously, can further ensure that the light in the 2-7 of mixed light chamber evenly penetrates, and further improves light efficiency.
In addition, cause the accumulation of heat for fear of long-time use of pcb board 2-2, in this detailed description of the invention, also be provided with radiating piece 2-9, radiating piece 2-9 is connected with pcb board 2-2, the heat that so pcb board 2-2 can be produced via radiating piece 2-9 conducts, and reduces the heat build-up of pcb board 2-2, ensures the normal use of light emitting module.
Above a kind of LED light fixture provided by the present invention is described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a LED light fixture, comprise light emitting module and diffuser plate, it is characterized in that, also comprise the diffuse transmission module being oppositely arranged with described diffuser plate, described diffuse transmission module, for expanding the scattering angle of light, is provided with mixed light chamber between described diffuser plate and described diffuse transmission module.
2. LED light fixture according to claim 1, is characterized in that, described diffuse transmission module comprises LGP and the total reflecting destructive part that is arranged at described LGP, and described total reflecting destructive part is arranged at the end face of described LGP away from described diffuser plate; Described diffuse transmission module also comprises diffuser, and described diffuser and described total reflecting destructive part are oppositely arranged and described diffuser is arranged at the end face of described LGP near described diffuser plate.
3. LED light fixture according to claim 2, is characterized in that, described diffuser is concave panel, and described concave panel is towards the direction depression away from described diffuser plate.
4. LED light fixture according to claim 3, is characterized in that, described total reflecting destructive part and described diffuser are all uniformly distributed along the length direction of described LGP.
5. LED light fixture according to claim 1, is characterized in that, described diffuse transmission module is spill end face with the relative end face of described light emitting module, and described female end is facing to the direction depression away from described light emitting module; Described diffuse transmission module is convex end face near the end face of described diffuser plate, and described convex is towards the direction projection near described diffuser plate.
6. LED light fixture according to claim 5, it is characterized in that, described male end face comprises the first convex end face and the second convex end face, and described the first convex end face is positioned at same straight line with the minimum point of be connected contact and the described spill end face of the symmetrical setting of described the second convex end face and described the first convex end face and described the second convex end face.
7. according to the LED light fixture described in arbitrary of claim 1 to 6, it is characterized in that, the chamber wall in described mixed light chamber is provided with reflective sheeting.
8. LED light fixture according to claim 7, is characterized in that, the angle between chamber wall and the described light-passing board in described mixed light chamber is acute angle.
9. LED light fixture according to claim 7, is characterized in that, described light emitting module comprises LED lamp and pcb board, and described LED lamp is arranged at described pcb board.
10. LED light fixture according to claim 7, is characterized in that, also comprises radiating piece, and described radiating piece is connected with described pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103004.2A CN103836420A (en) | 2014-03-19 | 2014-03-19 | LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103004.2A CN103836420A (en) | 2014-03-19 | 2014-03-19 | LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103836420A true CN103836420A (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410103004.2A Pending CN103836420A (en) | 2014-03-19 | 2014-03-19 | LED lamp |
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| Country | Link |
|---|---|
| CN (1) | CN103836420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486373A (en) * | 2020-04-23 | 2020-08-04 | 广东艾罗照明科技股份有限公司 | Light splitting spotlight |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087180A (en) * | 1992-11-13 | 1994-05-25 | 三星电管株式会社 | The back lighting device that is used for liquid crystal device |
| CN101408640A (en) * | 2007-10-09 | 2009-04-15 | 富士迈半导体精密工业（上海）有限公司 | Light source module group |
| JP2009087595A (en) * | 2007-09-28 | 2009-04-23 | Puratekku:Kk | Lighting module, light source unit, and lighting device |
| CN201935119U (en) * | 2010-06-23 | 2011-08-17 | 深圳市九洲光电科技有限公司 | Wide-angle grading lens used for LED (light-emitting diode) and lamp box |
| JP2013114875A (en) * | 2011-11-28 | 2013-06-10 | Inazuma Denki Koji:Kk | Lighting device |
| CN203963543U (en) * | 2014-03-19 | 2014-11-26 | 杭州上达光电科技有限公司 | A kind of LED light fixture |
-
2014
- 2014-03-19 CN CN201410103004.2A patent/CN103836420A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087180A (en) * | 1992-11-13 | 1994-05-25 | 三星电管株式会社 | The back lighting device that is used for liquid crystal device |
| JP2009087595A (en) * | 2007-09-28 | 2009-04-23 | Puratekku:Kk | Lighting module, light source unit, and lighting device |
| CN101408640A (en) * | 2007-10-09 | 2009-04-15 | 富士迈半导体精密工业（上海）有限公司 | Light source module group |
| CN201935119U (en) * | 2010-06-23 | 2011-08-17 | 深圳市九洲光电科技有限公司 | Wide-angle grading lens used for LED (light-emitting diode) and lamp box |
| JP2013114875A (en) * | 2011-11-28 | 2013-06-10 | Inazuma Denki Koji:Kk | Lighting device |
| CN203963543U (en) * | 2014-03-19 | 2014-11-26 | 杭州上达光电科技有限公司 | A kind of LED light fixture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486373A (en) * | 2020-04-23 | 2020-08-04 | 广东艾罗照明科技股份有限公司 | Light splitting spotlight |
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Application publication date: 20140604 |