CN104676462B - Lens and lighting device - Google Patents
Lens and lighting device Download PDFInfo
- Publication number
- CN104676462B CN104676462B CN201310617110.8A CN201310617110A CN104676462B CN 104676462 B CN104676462 B CN 104676462B CN 201310617110 A CN201310617110 A CN 201310617110A CN 104676462 B CN104676462 B CN 104676462B
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- Prior art keywords
- light
- convex surface
- lens
- convex
- concave curved
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Classifications
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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 present invention relates to a kind of lens, including incidence surface and light-emitting surface, the light-emitting surface includes the first convex surface and the second convex surface, first convex surface and the second convex surface are set to the opposite sides of light-emitting surface along a first direction, first convex surface is greater than the second convex surface along the radian of 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 in a first direction to the converging action of emergent light less than the second convex surface in a first direction to the converging action of emergent light, the incidence surface includes the first concave curved surface and the second concave curved surface, first concave curved surface is arranged close to the first convex surface side, second concave curved surface is arranged close to the second convex surface side, first concave curved surface along first direction radian less than the second concave curved surface along the radian of first direction.The invention further relates to a kind of lighting devices with said lens.
Description
Technical field
The present invention relates to optical field more particularly to a kind of lens and with the lighting device of the lens.
Background technique
Currently, big multiple light courcess, such as the emergent ray of light emitting diode, discharge lamp and halogen lamp all have certain diverging
Angle, to generally require one lens of setting before these light sources, keeping it full to adjust the angle of divergence of its light for illuminating
Sufficient illumination zone demand.It is mostly circle that current lighting device, which is formed by illumination region, under certain illumination occasions, is caused
The wasting of resources.Such as tunnel illumination, if the light field of Tunnel Lamp is circle, a part of light is broken forth except road range, not only
It results in waste of resources and is also possible to be formed wrong traffic guiding, in this way, then requiring Tunnel Lamp to be formed by illumination region concentrates on tunnel
Road is preferred, and has biggish illumination length on the direction along tunnel, and has lesser photograph on the direction perpendicular to tunnel
Bright length, effectively to utilize the luminous energy of lighting device.
Summary of the invention
In view of this, it is necessary to provide a kind of higher lighting devices of light utilization ratio and the lighting device to be used
Lens.
A kind of lens, including first surface, the second surface opposite with first surface, the first surface includes in being located at
The light-emitting surface of centre, around the light-emitting surface setting mounting surface and one relative to the installation downwards concave shape at and around should go out light
The concave surface of face setting, the second surface center form the groove for accommodating light source, and there is the lens one to be located at groove
Bottom surface oval incidence surface, the light-emitting surface includes the first convex surface and the second convex surface, first convex surface and the
Two convex surfaces are set to the opposite sides of light-emitting surface along a first direction, and first convex surface is greater than along the radian of first direction
Along the radian of first direction, the first convex surface and the second convex surface play emergent light to assemble and make second convex surface in a first direction
With, the first convex surface in a first direction to the converging action of emergent light less than the second convex surface in a first direction to the meeting of emergent light
Poly- effect, the concave surface are higher than the light source, and the face which connects with the light-emitting surface is parallel to the mounting surface, the incidence surface
Including the first concave curved surface and the second concave curved surface, the first concave curved surface is arranged close to the first convex surface side, and the second concave curved surface is close to
Two convex surface sides setting, first concave curved surface along first direction radian less than the second concave curved surface along the arc of first direction
Degree.
A kind of lighting device, including light source and lens, the lens, including incidence surface and light-emitting surface, the light source setting exist
The incidence surface side of the lens, the light-emitting surface include the first convex surface and the second convex surface, first convex surface and the
Two convex surfaces are set to the opposite sides of light-emitting surface along a first direction, and first convex surface is greater than along the radian of first direction
Along the radian of first direction, the first convex surface and the second convex surface play emergent light to assemble and make second convex surface in a first direction
With, the first convex surface in a first direction to the converging action of emergent light less than the second convex surface in a first direction to the meeting of emergent light
Poly- effect, the incidence surface include the first concave curved surface and the second concave curved surface, and the first concave curved surface is arranged close to the first convex surface side,
Second concave curved surface is arranged close to the second convex surface side, first concave curved surface along first direction radian less than the second concave curved surface
Along the radian of first direction.
The first convex surface and the second convex surface in the light-emitting surface of the lens, with the first concave curved surface and in incidence surface
Two concave curved surfaces match the most of road surface towards road of light offset that light source can be allowed to issue and irradiate, and improve lighting device
Light utilization ratio, the places such as highway, tunnel can be preferably applied for.
Detailed description of the invention
Fig. 1 is the perspective exploded view for the lighting device that an embodiment of the present invention provides.
Fig. 2 is stereoscopic schematic diagram of the lens from incident side in the lighting device in Fig. 1.
Fig. 3 is the schematic top plan view of the lens in Fig. 2.
Fig. 4 is the cross-sectional view in IV-IV direction of the lighting device in Fig. 3 in Fig. 1.
Fig. 5 is the cross-sectional view in V-V direction of the lighting device in Fig. 3 in Fig. 1.
Fig. 6 is the Illumination Distribution figure of the lighting device in Fig. 1.
Fig. 7 is the three-dimensional assembling schematic diagram for the lighting device that another embodiment of the present invention provides.
Main element symbol description
Lighting device 1a, 1b
Lens 100
First surface 10
Light-emitting surface 11
First convex surface 111
Second convex surface 112
Mounting surface 12
Concave surface 13
Notch 121
Protrusion 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 holder 300
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
It please refers to Fig.1 to Fig.3, the lighting device 1a that an embodiment of the present invention provides includes lens 100 and light source 200.
The lighting device 1a can be used in the illuminators such as street lamp, garden lamp, Tunnel Lamp.
The light source 200 can be one of light emitting diode, discharge lamp and halogen lamp etc..It is described in present embodiment
Light source 200 is light emitting diode, which is arranged on a circuit board 201.
The lens 100 are made of light transmittance high material PMMA (polymethyl methacrylate) or PC (polycarbonate).
The lens 100 include first surface 10, the second surface 20 opposite with the first surface 10, connect the first surface 10
With the first side 30 and the second side 40 opposite with the first side 30 of second surface 20.As the lighting device 1a
When for Tunnel Lamp or street lamp, the first side 30 is arranged towards the road surface of road, and the second side 40 is backwards to road
The setting of road surface direction, the first side 30 and second side 40 are substantially parallel with road extending direction.
The first surface 10 of the lens 100 includes centrally located light-emitting surface 11 and surround the peace that the light-emitting surface 11 is arranged
Dress face 12.The light-emitting surface 11 is used to control the light shape for the light being emitted through light-emitting surface 11.The mounting surface 12 is used in lens
In 100 installation processes, cooperate with components such as lamp outer casings to fix lens 100.In present embodiment, 12 edge of mounting surface
Multiple notches 121 through first surface 10 and second surface 20 are formed with, which is to combine production line actual conditions
And design, production jig can be cooperated, realize that lens 100 are quickly and accurately assemblied in above lamps and lanterns, reduce mistake, saved
Time.Relative to the mounting surface 12, recess forms and is arranged around the light-emitting surface 11 downwards for one concave surface 13.The concave surface 13 is higher than should
Light source 200.The face that the concave surface 13 connects with the light-emitting surface 11 is parallel to the mounting surface 12.Shape is upwardly extended from the mounting surface 12
At the protrusion 122 of four arcs.The protrusion 122 is located on four corners of the concave surface 13.
The light-emitting surface 11 protrudes the center for being formed in first surface 10.The length of the light-emitting surface 11 Y in a second direction is big
In the length along first direction X.The second direction Y is vertical with first direction X.When the lighting device 1a for Tunnel Lamp or
When street lamp, the second direction Y is substantially parallel with road extending direction, and the first direction X substantially hangs down with road extending direction
Directly.In present embodiment, which is substantially in ellipticity.
Please refer to Fig. 5, the light-emitting surface 11 includes the first convex surface 111 and the second convex surface 112.Described first is convex
Curved surface 111 and the second convex surface 112 are set to the opposite sides of light-emitting surface 11 along first direction X.First convex surface 111 with
Second convex surface 112 is to be smoothly connected.First convex surface 111 is arranged close to the first side 30, second evagination
Face 112 is arranged close to the second side 40.First convex surface 111 is greater than the second convex surface along the radian of first direction X
112 along first direction X radian, make light-emitting surface 11 along first direction X be biased to 30 side of first side be arranged.When the illumination fills
When setting 1a for Tunnel Lamp or street lamp, first convex surface 111 is arranged towards the road surface of road, second convex surface 112
It is arranged backwards to the road surface direction of road.
Please refer to Fig. 4 and Fig. 5, the first convex surface 111 and the second convex surface 112 dissipate it on second direction Y and go out
Light is penetrated, and assembles its emergent light on X in a first direction.First convex surface 111 is small to the focusing light effect of light on X in a first direction
In on the second convex surface 112 in a first direction X to the focusing light effect of light.In present embodiment, 111 He of the first convex surface
Second convex surface 112 is ellipsoid, and the long axis of the first convex surface 111 and the second convex surface 112 is parallel to second direction Y,
Short axle is parallel to first direction X.First convex surface 111 and the second convex surface 112 dissipate its emergent light on second direction Y, make
The range of exposures of the light being emitted from the first convex surface 111 and the second convex surface 112 Y in a second direction is larger.
20 center of second surface of the lens 100 forms fluted 21, and the groove 21 is for accommodating light source 200.It is described
Lens 100 have the oval incidence surface 22 of a bottom surface for being located at groove 21.In order to increase to lens 100 close to the first evagination
The light quantity of 111 side emergent light of face, the incidence surface 22 along first direction X be biased to 112 side of the second convex surface (i.e. with the first side
The opposite side in face 30) setting, i.e., incidence surface 22 is relatively distant from first along relatively close second convex surface 112 of first direction X
Convex surface 111.
The light shape of 100 emergent light of lens is controlled in order to make full use of incidence surface 22, and the incidence surface 22 includes first recessed
Curved surface 221, the 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 leans on
Nearly first convex surface, 111 side setting.Second concave curved surface 222 is arranged close to 112 side of the second convex surface.First concave curved surface
221 along first direction X radian less than the second concave curved surface 222 along the radian of first direction X.First concave curved surface 221 and first convex
Average distance between curved surface 111 is greater than the average distance between the second concave curved surface 222 and the second convex surface 112.First concave curved
The long axis direction of face 221 and the second concave curved surface 222 is parallel to first direction X setting.
In the present embodiment, the first convex surface 111 and the second convex surface 112 in the light-emitting surface 11 of the lens 100,
With in incidence surface 22 the first concave curved surface 221 and the second concave curved surface 222 to match light offset that light source 200 can be allowed to issue big
It is partially toward the road surface irradiation of road, the light utilization efficiency of lighting device 1a is improved, the fields such as highway, tunnel can be preferably applied for
Institute.
Referring to Fig. 6, the lighting device 1a Illumination Distribution figure provided according to the present embodiment can be seen that lighting device 1a
Irradiation area be substantially in a rectangle, the relatively uniform distribution of light field illumination can effectively reduce dazzle coefficient.In this implementation
In example, the length-width ratio of the rectangular irradiation area is about 3:1.The range of exposures of lighting device 1a is wide, can satisfy 12
Meter or more road intersection mouth lighting requirement.
Lighting device of the invention can be such that lighting device has more using multiple lens 100 are arranged in arbitrary shape
Flexibility and illuminating effect is more preferable.
Referring to Fig. 7, a kind of lighting device 1b that another embodiment of the present invention provides includes lamp holder 300, is arranged in lamp
Multiple light sources (not shown) on seat 300 and multiple lens 100 for being respectively overlay in multiple light sources.The multiple lens
100 are arranged in the surface of lamp holder 300 in array-like.The light source can be one in light emitting diode, discharge lamp and halogen lamp etc.
Kind.
It is understood that for those of ordinary skill in the art, can do in accordance with the technical idea of the present invention
Various other changes and modifications out, and all these changes and deformation all should belong to the protection model of the claims in the present invention
It encloses.
Claims (9)
1. a kind of lens, including first surface, the second surface opposite with first surface, the first surface includes centrally located
Light-emitting surface, around light-emitting surface setting mounting surface and one relative to the installation downwards concave shape at and around the light-emitting surface
The concave surface of setting, the second surface center form the groove for accommodating light source, and there is the lens one to be located at groove
The oval incidence surface of bottom surface, which is characterized in that the light-emitting surface includes the first convex surface and the second convex surface, and described first is convex
Curved surface and the second convex surface are set to the opposite sides of light-emitting surface along a first direction, and first convex surface is along first direction
Radian is greater than the second convex surface along the radian of first direction, and the first convex surface and the second convex surface are in a first direction to emergent light
Rise converging action, the first convex surface in a first direction to the converging action of emergent light less than the second convex surface in a first direction to go out
The converging action of light is penetrated, the concave surface is higher than the light source, and the face which connects with the light-emitting surface is parallel to the mounting surface, institute
Stating incidence surface includes the first concave curved surface and the second concave curved surface, and the first concave curved surface is arranged close to the first convex surface side, the second concave curved
Face is arranged close to the second convex surface side, first concave curved surface along first direction radian less than the second concave curved surface along first party
To radian.
2. lens as described in claim 1, which is characterized in that the light-emitting surface is greater than along the length of a second direction along first
The length in direction, the second direction are vertical with first direction.
3. lens as claimed in claim 2, which is characterized in that when the lens are in Tunnel Lamp or street lamp, described the
Two directions are parallel with road extending direction, and the first direction is vertical with road extending direction, and first convex surface is towards road
The road surface on road is arranged, and second convex surface is arranged backwards to the road surface direction of road.
4. lens as claimed in claim 2, which is characterized in that first convex surface and the second convex surface are ellipsoid,
And first the long axis of convex surface and the second convex surface be parallel to second direction, short axle is parallel to first direction.
5. lens as claimed in claim 2, which is characterized in that first convex surface and the second convex surface are in a second direction
Dissipate its emergent light.
6. lens as claimed in claim 2, which is characterized in that the first concave curved surface and the second concave curved surface are all ellipsoid, and first
The long axis direction of concave curved surface and the second concave curved surface is parallel to first direction setting.
7. lens as described in claim 1, which is characterized in that the average distance between the first concave curved surface and the first convex surface is big
Average distance between the second concave curved surface and the second convex surface.
8. lens as claimed in claim 7, which is characterized in that the protrusion to form four arcs is upwardly extended from the mounting surface,
The protrusion is located on four corners of the concave surface.
9. a kind of lighting device, which is characterized in that including light source and lens as claimed in any one of claims 1 to 8, the light
The incidence surface side of the lens is arranged in source.
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 CN104676462A (en) | 2015-06-03 |
| CN104676462B true 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) |
Families Citing this family (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 |
| JP2018037177A (en) * | 2016-08-30 | 2018-03-08 | 日立アプライアンス株式会社 | Luminaire |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476695B (en) * | 2009-01-21 | 2012-07-11 | 杭州杭科光电有限公司 | 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 |
| CN102410491A (en) * | 2010-09-23 | 2012-04-11 | 富士迈半导体精密工业（上海）有限公司 | Lens and light source module |
-
2013
- 2013-11-29 CN CN201310617110.8A patent/CN104676462B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104676462A (en) | 2015-06-03 |
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| TA01 | Transfer of patent application right | ||
| 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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