CN104676462B - Lenses and Lighting Devices - Google Patents

Lenses and Lighting Devices Download PDF

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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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CN
China
Prior art keywords
light
curved surface
convex
lens
concave
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Expired - Fee Related
Application number
CN201310617110.8A
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Chinese (zh)
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CN104676462A (en
Inventor
陈庆仲
王善越
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Champ Tech Optical Foshan Corp
Original Assignee
QUANYIDA TECHNOLOGY (FOSHAN) Co Ltd
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Priority to CN201310617110.8A priority Critical patent/CN104676462B/en
Publication of CN104676462A publication Critical patent/CN104676462A/en
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Publication of CN104676462B publication Critical patent/CN104676462B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

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

Lens and lighting device
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)

1.一种透镜，包括第一表面、与第一表面相对的第二表面，所述第一表面包括位于中央的出光面、环绕该出光面设置的安装面及一相对于该安装面向下凹陷形成且环绕该出光面设置的凹面，所述第二表面中央形成用于收容光源的凹槽，所述透镜具有一个位于凹槽的底面的椭圆形入光面，其特征在于，所述出光面包括第一凸曲面及第二凸曲面，所述第一凸曲面和第二凸曲面沿一第一方向设置于出光面的相对两侧，所述第一凸曲面沿第一方向的弧度大于第二凸曲面沿第一方向的弧度，第一凸曲面及第二凸曲面在第一方向上对出射光起会聚作用，第一凸曲面在第一方向对出射光的会聚作用小于第二凸曲面在第一方向对出射光的会聚作用，所述凹面高于所述光源，该凹面与该出光面相接的面平行于该安装面，所述入光面包括第一凹曲面及第二凹曲面，第一凹曲面靠近第一凸曲面一侧设置，第二凹曲面靠近第二凸曲面一侧设置，所述第一凹曲面沿第一方向的弧度小于第二凹曲面沿第一方向的弧度。1. A lens comprising a first surface, a second surface opposite the first surface, the first surface comprising a central light-emitting surface, a mounting surface arranged around the light-emitting surface, and a recessed downward relative to the mounting surface A concave surface is formed and arranged around the light emitting surface, a groove for accommodating the light source is formed in the center of the second surface, and the lens has an elliptical light incident surface located on the bottom surface of the groove, characterized in that the light emitting surface is It includes a first convex curved surface and a second convex curved surface, the first convex curved surface and the second convex curved surface are arranged on opposite sides of the light-emitting surface along a first direction, and the radian of the first convex curved surface along the first direction is greater than that of the first convex surface. The radian of the two convex surfaces along the first direction, the first convex surface and the second convex surface converge the outgoing light in the first direction, the first convex surface in the first direction converging the outgoing light is smaller than the second convex surface Convergence of the outgoing light in the first direction, the concave surface is higher than the light source, the surface connecting the concave surface and the light outgoing surface is parallel to the installation surface, and the light incident surface includes a first concave curved surface and a second concave surface Curved surfaces, the first concave curved surface is arranged on the side of the first convex curved surface, the second concave curved surface is arranged on the side of the second convex curved surface, and the radian of the first concave curved surface along the first direction is smaller than the radian of the second concave curved surface along the first direction. radian. 2.如权利要求1所述的透镜，其特征在于，所述出光面沿一第二方向的长度大于沿第一方向的长度，所述第二方向与第一方向垂直。2 . The lens of claim 1 , wherein the length of the light-emitting surface along a second direction is greater than the length along the first direction, and the second direction is perpendicular to the first direction. 3 . 3.如权利要求2所述的透镜，其特征在于，当所述透镜用于隧道灯或路灯中时，所述第二方向与道路延伸方向平行，所述第一方向与道路延伸方向垂直，所述第一凸曲面面向道路的路面设置，所述第二凸曲面背向道路的路面方向设置。3. The lens of claim 2, wherein when the lens is used in a tunnel light or a street light, the second direction is parallel to the extending direction of the road, and the first direction is perpendicular to the extending direction of the road, The first convex curved surface is disposed facing the road surface of the road, and the second convex curved surface is disposed facing away from the road surface direction of the road. 4.如权利要求2所述的透镜，其特征在于，所述第一凸曲面和第二凸曲面均为椭球面，且第一凸曲面和第二凸曲面的长轴平行于第二方向，短轴平行于第一方向。4. The lens of claim 2, wherein the first convex curved surface and the second convex curved surface are both ellipsoidal surfaces, and the long axes of the first convex curved surface and the second convex curved surface are parallel to the second direction, The minor axis is parallel to the first direction. 5.如权利要求2所述的透镜，其特征在于，所述第一凸曲面及第二凸曲面在第二方向上发散其出射光。5 . The lens of claim 2 , wherein the first convex curved surface and the second convex curved surface scatter the emitted light in the second direction. 6 . 6.如权利要求2所述的透镜，其特征在于，第一凹曲面及第二凹曲面皆为椭球面，第一凹曲面和第二凹曲面的长轴方向平行于第一方向设置。6 . The lens of claim 2 , wherein the first concave curved surface and the second concave curved surface are both ellipsoid surfaces, and the major axis directions of the first concave curved surface and the second concave curved surface are disposed parallel to the first direction. 7 . 7.如权利要求1所述的透镜，其特征在于，第一凹曲面与第一凸曲面之间的平均距离大于第二凹曲面与第二凸曲面之间的平均距离。7. The lens of claim 1, wherein the average distance between the first concave curved surface and the first convex curved surface is greater than the average distance between the second concave curved surface and the second convex curved surface. 8.如权利要求7所述的透镜，其特征在于，从该安装面上向上延伸形成四弧形的凸部，所述凸部环设于该凹面的四角落处。8 . The lens of claim 7 , wherein four arc-shaped convex portions are formed extending upward from the mounting surface, and the convex portions are annularly arranged at four corners of the concave surface. 9 . 9.一种照明装置，其特征在于，包括光源及如权利要求1至8任一项所述的透镜，所述光源设置在所述透镜的入光面一侧。9 . An illuminating device, characterized in that it comprises a light source and the lens according to any one of claims 1 to 8 , wherein the light source is arranged on the side of the light incident surface of the lens. 10 .
CN201310617110.8A 2013-11-29 2013-11-29 Lenses and Lighting Devices Expired - Fee Related CN104676462B (en)

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CN104676462B true CN104676462B (en) 2019-04-19

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* Cited by examiner, † Cited by third party
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
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
CN110131682A (en) * 2019-03-25 2019-08-16 厦门东昂光电科技有限公司 A strip-shaped lens part and LED lamp
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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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

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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
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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

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