CN104676462A - Lens and lighting device - Google Patents
Lens and lighting device Download PDFInfo
- Publication number
- CN104676462A CN104676462A CN201310617110.8A CN201310617110A CN104676462A CN 104676462 A CN104676462 A CN 104676462A CN 201310617110 A CN201310617110 A CN 201310617110A CN 104676462 A CN104676462 A CN 104676462A
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- Prior art keywords
- convex surface
- lens
- concave curved
- convex
- along
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
Abstract
The invention relates to a lens. The lens comprises a light incident face and a light emitting face; the light emitting face comprises a first convex curved face and a second convex curved face; the first convex curved face and the second convex curved face are arranged at two opposite sides of the light emitting face along the first direction, and the gradients of the first convex curved face along the first direction is more than that of the second convex curved face along the first direction; the first convex curved face and the second convex curved face play a convergence effect on the emitting light on the first direction, and the convergence effect of the first convex curved face on the emitting light on the first direction is less than the convergence effect of the second convex curved face on the emitting light on the first direction; the light incident face comprises a first concave curved face and a second concave curved face, and the first concave curved face closes to one side of the first convex curved face, and the second concave curved face closes to one side of the second convex curved face; the gradient of the first concave curved face along the first direction is less than that of the second concave curved face along the first direction. The invention further relates to a lighting device with the lens.
Description
Technical field
The present invention relates to optical field, particularly relate to a kind of lens and there is the lighting device of these lens.
Background technology
At present, large multiple light courcess, the emergent ray as light emitting diode, discharge lamp and Halogen lamp LED etc. all has certain angle of divergence, to for illumination, general needs arrange lens before these light sources, and the angle of divergence adjusting its light makes it meet illumination zone demand.The field of illumination that current lighting device is formed is mostly circular, under some illumination occasion, causes the wasting of resources.Such as tunnel illumination, if the light field of Tunnel Lamp is circular, then a part of light is broken forth outside road scope, not only cause the wasting of resources also may form wrong traffic guiding, so, then it is good for requiring that field of illumination that Tunnel Lamp is formed concentrates on tunnel, has larger illumination length along on the direction in tunnel, and perpendicular to the direction in tunnel having less illumination length, effectively to utilize the luminous energy of lighting device.
Summary of the invention
In view of this, be necessary the lighting device providing a kind of smooth utilization ratio higher, and the lens that this lighting device adopts.
A kind of lens, comprise incidence surface and exiting surface, described exiting surface comprises the first convex surface and the second convex surface, described first convex surface and the second convex surface are arranged at the relative both sides of exiting surface along a first direction, described first convex surface is greater than the radian of the second convex surface along first direction along the radian of first direction, first convex surface and the second convex surface play converging action to emergent light in a first direction, first convex surface is less than the second convex surface in the converging action of first direction to emergent light in the converging action of first direction to emergent light, described incidence surface comprises the first concave curved surface and the second concave curved surface, first concave curved surface is arranged near the first convex surface side, second concave curved surface is arranged near the second convex surface side, described first concave curved surface is less than the radian of the second concave curved surface along first direction along the radian of first direction.
A kind of lighting device, comprise light source and lens, these lens, comprise incidence surface and exiting surface, described light source is arranged on the incidence surface side of described lens, described exiting surface comprises the first convex surface and the second convex surface, described first convex surface and the second convex surface are arranged at the relative both sides of exiting surface along a first direction, described first convex surface is greater than the radian of the second convex surface along first direction along the radian of first direction, first convex surface and the second convex surface play converging action to emergent light in a first direction, first convex surface is less than the second convex surface in the converging action of first direction to emergent light in the converging action of first direction to emergent light, described incidence surface comprises the first concave curved surface and the second concave curved surface, first concave curved surface is arranged near the first convex surface side, second concave curved surface is arranged near the second convex surface side, described first concave curved surface is less than the radian of the second concave curved surface along first direction along the radian of first direction.
The first convex surface in the exiting surface of described lens and the second convex surface, the light that light source can be allowed to send of matching with the first concave curved surface in incidence surface and the second concave curved surface offsets major part and irradiates towards the road surface of road, improve the light utilization ratio of lighting device, the place such as highway, tunnel can be applied to better.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view of the lighting device that an embodiment of the present invention provides.
Fig. 2 is the schematic perspective view that the lens in the lighting device in Fig. 1 are observed from incident side.
Fig. 3 is the schematic top plan view of the lens in Fig. 2.
Fig. 4 is the sectional view of the lighting device in Fig. 1 along the IV-IV direction in Fig. 3.
Fig. 5 is the sectional view of the lighting device in Fig. 1 along the V-V direction in Fig. 3.
Fig. 6 is the Illumination Distribution figure of the lighting device in Fig. 1.
Fig. 7 is the solid assembling schematic diagram of the lighting device that another embodiment of the present invention provides.
Main element symbol description
| Lighting device | 1a、1b |
| Lens | 100 |
| First surface | 10 |
| Exiting surface | 11 |
| First convex surface | 111 |
| Second convex surface | 112 |
| Installed surface | 12 |
| Concave surface | 13 |
| Breach | 121 |
| Protuberance | 122 |
| Second surface | 20 |
| Groove | 21 |
| Incidence surface | 22 |
| First concave curved surface | 221 |
| Second concave curved surface | 222 |
| First side | 30 |
| Second side | 40 |
| Light source | 200 |
| Circuit board | 201 |
| Lamp socket | 300 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to Fig. 1 to Fig. 3, the lighting device 1a that an embodiment of the present invention provides comprises lens 100 and light source 200.Described lighting device 1a can be used in the lightings such as street lamp, garden lamp, Tunnel Lamp.
Described light source 200 can be the one in light emitting diode, discharge lamp and Halogen lamp LED etc.In present embodiment, described light source 200 is light emitting diode, and this light emitting diode is arranged on a circuit board 201.
Described lens 100 are by the high material PMMA(polymethyl methacrylate of light transmittance) or PC(Merlon) make.Described lens 100 comprise first surface 10, the second surface 20 relative with described first surface 10, the first side 30 connecting described first surface 10 and second surface 20 and second side 40 relative with described first side 30.When described lighting device 1a be used for Tunnel Lamp or street lamp time, described first side 30 is arranged towards the road surface of road, described second side 40 dorsad road direction, road surface setting, described first side 30 is roughly parallel with road bearing of trend with the second side 40.
The first surface 10 of described lens 100 comprises the exiting surface 11 being positioned at central authorities and the installed surface 12 arranged around this exiting surface 11.Described exiting surface 11 is for controlling the light shape of the light through exiting surface 11 outgoing.Described installed surface 12, in lens 100 installation process, fixes lens 100 with part fits such as lamp outer casings.In present embodiment, described installed surface 12 edge is formed with multiple breach 121 running through first surface 10 and second surface 20, these breach 121 design in conjunction with production line actual conditions, production tool can be coordinated, realize lens 100 to be assemblied in quickly and accurately above light fixture, reduce mistake, save time.One concave surface 13 is recessed to form downwards relative to this installed surface 12 and arranges around this exiting surface 11.The protuberance 122 of four arcs is upwards extended to form from this installed surface 12.Described protuberance 122 is located on four corners of this concave surface 13.
Described exiting surface 11 protrudes the central authorities being formed at first surface 10.This exiting surface 11 is greater than the length along first direction X along the length of second direction Y.Described second direction Y is vertical with first direction X.When described lighting device 1a is used for Tunnel Lamp or street lamp, described second direction Y is roughly parallel with road bearing of trend, and described first direction X is roughly vertical with road bearing of trend.In present embodiment, this exiting surface 11 is roughly in ellipticity.
Please refer to Fig. 5, described exiting surface 11 comprises the first convex surface 111 and the second convex surface 112.Described first convex surface 111 and the second convex surface 112 are arranged at the relative both sides of exiting surface 11 along first direction X.Described first convex surface 111 and the second convex surface 112 are in smoothing junction.Described first convex surface 111 is arranged near described first side 30, and described second convex surface 112 is arranged near described second side 40.Described first convex surface 111 is greater than the radian of the second convex surface 112 along first direction X along the radian of first direction X, makes exiting surface 11 be partial to the first side, side 30 along first direction X and arranges.When described lighting device 1a be used for Tunnel Lamp or street lamp time, described first convex surface 111 is arranged towards the road surface of road, described second convex surface 112 dorsad road direction, road surface setting.
Please refer to Fig. 4 and Fig. 5, the first convex surface 111 and the second convex surface 112 disperse its emergent light on second direction Y, and assemble its emergent light on first direction X.First convex surface 111 is less than the optically focused effect to light on first direction X of the second convex surface 112 to the optically focused effect of light on first direction X.In present embodiment, described first convex surface 111 and the second convex surface 112 are ellipsoid, and the longer axis parallel of the first convex surface 111 and the second convex surface 112 is in second direction Y, and minor axis parallel is in first direction X.First convex surface 111 and the second convex surface 112 disperse its emergent light on second direction Y, make from the light of the first convex surface 111 and the second convex surface 112 outgoing larger along the range of exposures of second direction Y.
Second surface 20 central authorities of described lens 100 are formed with groove 21, and this groove 21 is for accommodating light source 200.Described lens 100 have the oval incidence surface 22 that is positioned at the bottom surface of groove 21.In order to increase to the light quantity of lens 100 near the first convex surface 111 side emergent light, described incidence surface 22 is partial to the second convex surface 112 side (namely relative with the first side 30 side) along first direction X and is arranged, and namely incidence surface 22 is relatively relative to the first convex surface 111 near the second convex surface 112 along first direction X.
In order to make full use of incidence surface 22 to control the light shape of lens 100 emergent light, described incidence surface 22 comprises the first concave curved surface 221, second concave curved surface 222.First concave curved surface 221 and the second concave curved surface 222 are all ellipsoid.First concave curved surface 221 is arranged near the first convex surface 111 side.Second concave curved surface 222 is arranged near the second convex surface 112 side.Described first concave curved surface 221 is less than the radian of the second concave curved surface 222 along first direction X along the radian of first direction X.Average distance between first concave curved surface 221 and the first convex surface 111 is greater than the average distance between the second concave curved surface 222 and the second convex surface 112.The long axis direction of the first concave curved surface 221 and the second concave curved surface 222 is parallel to first direction X and arranges.
In the present embodiment, the first convex surface 111 and the second convex surface 112 in the exiting surface 11 of described lens 100, the light that light source 200 can be allowed to send of matching with the first concave curved surface 221 in incidence surface 22 and the second concave curved surface 222 offsets major part and irradiates towards the road surface of road, improve the light utilization efficiency of lighting device 1a, the place such as highway, tunnel can be applied to better.
Refer to Fig. 6, the lighting device 1a Illumination Distribution figure provided according to the present embodiment can find out, the irradiation area of lighting device 1a is roughly in a rectangle, and the relatively uniform distribution of its light field illumination, can effectively reduce dazzle coefficient.In the present embodiment, the length-width ratio of described rectangular irradiation area is about 3:1.The range of exposures of this lighting device 1a is wide, can meet the lighting requirement of more than 12 meters road intersection mouths.
Lighting device of the present invention can adopt and multiple lens 100 are arranged in arbitrary shape, makes lighting device have more flexibility and illuminating effect is better.
Refer to Fig. 7, multiple lens 100 that a kind of lighting device 1b that another embodiment of the present invention provides comprises lamp socket 300, is arranged on the multiple light source (not shown) on lamp socket 300 and covers respectively on multiple light source.Described multiple lens 100 are arranged in the surface of lamp socket 300 in array-like.Described light source can be the one in light emitting diode, discharge lamp and Halogen lamp LED etc.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (10)
1. lens, comprise incidence surface and exiting surface, it is characterized in that, described exiting surface comprises the first convex surface and the second convex surface, described first convex surface and the second convex surface are arranged at the relative both sides of exiting surface along a first direction, described first convex surface is greater than the radian of the second convex surface along first direction along the radian of first direction, first convex surface and the second convex surface play converging action to emergent light in a first direction, first convex surface is less than the second convex surface in the converging action of first direction to emergent light in the converging action of first direction to emergent light, described incidence surface comprises the first concave curved surface and the second concave curved surface, first concave curved surface is arranged near the first convex surface side, second concave curved surface is arranged near the second convex surface side, described first concave curved surface is less than the radian of the second concave curved surface along first direction along the radian of first direction.
2. lens as claimed in claim 1, is characterized in that, described exiting surface is greater than the length along first direction along the length of a second direction, and described second direction is vertical with first direction.
3. lens as claimed in claim 2, it is characterized in that, when described lens are used in Tunnel Lamp or street lamp, described second direction is parallel with road bearing of trend, described first direction is vertical with road bearing of trend, described first convex surface is arranged towards the road surface of road, described second convex surface dorsad road direction, road surface arrange.
4. lens as claimed in claim 2, it is characterized in that, described first convex surface and the second convex surface are ellipsoid, and the longer axis parallel of the first convex surface and the second convex surface is in second direction, and minor axis parallel is in first direction.
5. lens as claimed in claim 2, it is characterized in that, described first convex surface and the second convex surface disperse its emergent light in a second direction.
6. lens as claimed in claim 2, it is characterized in that, the first concave curved surface and the second concave curved surface are all ellipsoid, and the long axis direction of the first concave curved surface and the second concave curved surface is parallel to first direction and arranges.
7. lens as claimed in claim 1, it is characterized in that, the average distance between the first concave curved surface and the first convex surface is greater than the average distance between the second concave curved surface and the second convex surface.
8. lens as claimed in claim 1, it is characterized in that, also comprise first surface and the second surface relative with first surface, described exiting surface protrudes the central authorities being formed at first surface, described second surface central authorities form the groove for accommodating light source, and described incidence surface is positioned at the bottom surface of groove.
9. lens as claimed in claim 8, it is characterized in that, also comprise the installed surface arranged around this exiting surface, one concave surface is recessed to form downwards relative to this installed surface and arranges around this exiting surface, from this installed surface, upwards extend to form the protuberance of four arcs, described protuberance is located on four corners of this concave surface.
10. a lighting device, is characterized in that, comprises light source and the lens as described in any one of claim 1 to 9, and described light source is arranged on the incidence surface side of described lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617110.8A CN104676462B (en) | 2013-11-29 | 2013-11-29 | Lens and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310617110.8A CN104676462B (en) | 2013-11-29 | 2013-11-29 | Lens and lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676462A true CN104676462A (en) | 2015-06-03 |
| CN104676462B CN104676462B (en) | 2019-04-19 |
Family
ID=53311862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310617110.8A Active CN104676462B (en) | 2013-11-29 | 2013-11-29 | Lens and lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676462B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572834A (en) * | 2016-01-27 | 2016-05-11 | 珠海格力电器股份有限公司 | Lens and remote control device with same |
| CN105910063A (en) * | 2016-04-18 | 2016-08-31 | 东莞市鑫诠光电技术有限公司 | Lens and LED lamp |
| CN107781735A (en) * | 2016-08-30 | 2018-03-09 | 日立空调·家用电器株式会社 | Lighting device |
| CN111708108A (en) * | 2020-06-08 | 2020-09-25 | 欧菲微电子技术有限公司 | Projection lens, emission module and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN101639198A (en) * | 2009-08-24 | 2010-02-03 | 深圳市九拓光电有限公司 | Light-emitting diode lens |
| CN102022690A (en) * | 2009-09-11 | 2011-04-20 | 玉晶光电股份有限公司 | Optical lens |
| CN102252229A (en) * | 2010-04-28 | 2011-11-23 | 亨沃工业公司 | Underwater light having sealed polymer housing and method of manufacture therefor |
| US20120075865A1 (en) * | 2010-09-23 | 2012-03-29 | Foxsemicon Integrated Technology, Inc. | Lens and light source module |
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2013
- 2013-11-29 CN CN201310617110.8A patent/CN104676462B/en active Active
Patent Citations (5)
| 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 |
| CN101639198A (en) * | 2009-08-24 | 2010-02-03 | 深圳市九拓光电有限公司 | Light-emitting diode lens |
| CN102022690A (en) * | 2009-09-11 | 2011-04-20 | 玉晶光电股份有限公司 | Optical lens |
| CN102252229A (en) * | 2010-04-28 | 2011-11-23 | 亨沃工业公司 | Underwater light having sealed polymer housing and method of manufacture therefor |
| US20120075865A1 (en) * | 2010-09-23 | 2012-03-29 | Foxsemicon Integrated Technology, Inc. | Lens and light source module |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572834A (en) * | 2016-01-27 | 2016-05-11 | 珠海格力电器股份有限公司 | Lens and remote control device with same |
| CN105910063A (en) * | 2016-04-18 | 2016-08-31 | 东莞市鑫诠光电技术有限公司 | Lens and LED lamp |
| CN107781735A (en) * | 2016-08-30 | 2018-03-09 | 日立空调·家用电器株式会社 | Lighting device |
| CN111708108A (en) * | 2020-06-08 | 2020-09-25 | 欧菲微电子技术有限公司 | Projection lens, emission module and electronic equipment |
| CN111708108B (en) * | 2020-06-08 | 2021-11-23 | 江西欧迈斯微电子有限公司 | Projection lens, emission module and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN104676462B (en) | 2019-04-19 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170517 Address after: 518109 Guangdong province Foshan City Warburg West Industrial Zone Chancheng District Road No. 35 Applicant after: Quanyida Technology (Foshan) Co., Ltd. Address before: 518109 Guangdong province Foshan City Warburg West Industrial Zone Chancheng District Road No. 35 Applicant before: Quanyida Technology (Foshan) Co., Ltd. Applicant before: Foxconn Precision Industry Co., Ltd. |
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