CN101684918A - Non-imaging optical directional light distribution lens of LED light source - Google Patents

Non-imaging optical directional light distribution lens of LED light source Download PDF

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Publication number
CN101684918A
CN101684918A CN200910022670A CN200910022670A CN101684918A CN 101684918 A CN101684918 A CN 101684918A CN 200910022670 A CN200910022670 A CN 200910022670A CN 200910022670 A CN200910022670 A CN 200910022670A CN 101684918 A CN101684918 A CN 101684918A
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China
Prior art keywords
light
distribution
light source
lens
led
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Pending
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CN200910022670A
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Chinese (zh)
Inventor
胡家培
胡民海
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Xian Zhihai Power Technology Co Ltd
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Xian Zhihai Power Technology Co Ltd
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Priority to CN200910022670A priority Critical patent/CN101684918A/en
Publication of CN101684918A publication Critical patent/CN101684918A/en
Priority to PCT/CN2010/073065 priority patent/WO2010133183A1/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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

Abstract

The invention provides a non-imaging optical directional light distribution lens of an LED light source. The lens comprises a lens body, wherein the lens body is provided with an incident face and anemergent face; the incident face is an LED light incident face, and is arranged into a tooth shape; and an included angle theta between the incident face and the emergent face is between 0 and 90 degrees. By the lens, the technical problems of poor evenness of light distribution and low light efficiency due to the fact that the prior art cannot improve the Lambert character of the LED light sourceradically and cannot realize directional light distribution are solved. The lens can directionally control the light distribution of the LED light source, realizes precise light distribution, and hashigh reliability, energy conservation and environmental protection.

Description

The non-imaging optical directional light distribution lens of led light source
Technical field
The invention belongs to nonimaging optics luminous intensity distribution technical field, be specifically related to a kind of non-imaging optical directional light distribution lens of led light source.
Background technology
Functional lighting such as street lamp, Tunnel Lamp, require minimal illumination index, the highest dazzle of all necessary satisfied illumination code requirement of illumination of every bit in the illumination zone to require index, light intensity uniformity index and light area requirement for restriction, require also very high reliability of products and energy-saving and environmental protection performance etc.In order to improve illuminating effect; the health of protection eye must utilize light fixture to carry out the optical system illuminating light distribution, promptly in a given site of road and given zone, road surface; form a uniform light field of illumination by light-illuminating, the light that shines outside the given area is regarded as invalid light.
The luminous intensity distribution of traditional lighting light fixture mainly is to rely on reflector that light is reflected distribution, light is controlled in the rational regulation zone, and improves the uniformity of light intensity.This method of carrying out the light intensity distribution by reflection, its major defect is that optical energy loss is big, power consumption is big.
The encapsulation of common led light source as shown in Figure 1.Its light distribution E is directly proportional with the cosine of beam angle θ ', and the light that led light source 101 sent is being decayed rapidly with the increase of angle of emergence θ ' according to formed illumination E on the surface.What led light source 101 can be regarded a kind of 180 degree angle bright dippings as has lambert (Lambertian) characteristic light source, and light distribution is that the center is strong, periphery weakens, as shown in Figure 2.If the characteristic of led light source is not carried out the secondary optics design, such light distribution is difficult to satisfy the demand of function lighting use, and the existence of a large amount of invalid light not only makes optical energy loss big, has also reduced illuminating effect widely.Below be the place's taper seat curve of light distribution analysis of existing LED road lamp largest light intensity:
Fig. 3 is the distribution curve flux that the 240W symmetric form of actual measurement does not have suitable light-distribution LED street lamp, and it shows quite a few luminous energy and leaks into beyond the effective coverage frame 102.The result shows that invalid wide the earth has reduced illuminating effect.For realizing lighting requirement, light source can only be gone out power and be increased to 240W, cause energy waste.
Fig. 4 is the distribution curve flux of the 150W butterfly type light-distribution LED street lamp of actual measurement.It shows that the result shows that the uniformity of illumination is very poor, along shadow surface dazzle is arranged, and the blind area is arranged in the irradiation area.
Led light source generally is divided into single light source and multiple light courcess two classes.
Existing multi-light source LED lighting, its luminous intensity distribution are by the setting angle of adjusting numerous light sources light intensity to be carried out direct projection to distribute, and the lighting of formation is a module group type.The multiple light courcess light fixture is Heavy Weight not only, and has produced multiple image, has limited the power expansion and the scope of application, is serious potential safety hazard to vehicle and pedestrian especially.
Existing single light source LED lighting, its luminous intensity distribution mainly are the imitation conventional lamp, rely on reflector that light is reflected distribution.Because the existence of lambert (Lambertian) characteristic, the light that reflector can reflect are seldom, can't fundamentally improve the characteristic that led light source light distribution center is strong, periphery weakens.
Summary of the invention
The object of the present invention is to provide a kind of non-imaging optical directional light distribution lens of led light source, it has solved lambert's characteristic that prior art can't fundamentally be improved led light source, thereby can not realize directional light distribution, cause the technical problem that the luminous intensity distribution uniformity is poor, light efficiency is low.
Technical scheme of the present invention is as follows:
The present invention utilizes light to dredge the refraction effect of material from the close material of light to light, overcomes lambert's characteristic of led light source, the characteristic that promptly the light distribution center is strong, periphery weakens.The present invention reflects non-imaging light-distribution lens by orientation the energy of led light source is redistributed, the light that led light source sent is carried out shaping, change, control with making full use of of realization luminous energy, make the LED spot light become the lens surface uniform surface light source with the orientation of light distribution.Implementation step is as follows:
A kind of non-imaging optical directional light distribution lens of led light source, comprise lenticular body 203, this lenticular body 203 has the plane of incidence 201 and exit facet 202, and its special character is: the described plane of incidence 201 is the LED plane of light incidence, and the described plane of incidence 201 is arranged as profile of tooth; Angle theta=0～90 of the described plane of incidence 201 and exit facet 202 °.
The above plane of incidence 201 that is arranged as profile of tooth generally is arranged on the same datum level, and this datum level can be plane or curved surface.
Above-described exit facet 202 can be plane or curved surface.
The above-described plane of incidence 201 also can be plane or curved surface.
Above-described lenticular body 203 can adopt glass material, PS material, PC material or PMMA material etc.
The above-described plane of incidence 201, exit facet 202 can be the continuous curve surfaces that has flex point or do not have flex point.
The above-described plane of incidence 201, exit facet 202 also can be interrupted curved surfaces.
The present invention has following advantage:
1. it is big to collect light angle, can make full use of the luminous energy of led light source, and the light efficiency height realizes that the lighting requirement desired power is little, therefore can save energy.
2. can make the LED spot light become the lens surface uniform surface light source to the directed control of the light distribution of led light source, luminous intensity distribution uniformity height can be realized precise light distribution control.
3. changed lambert's characteristic of led light source, the light distribution that makes led light source is applicable to the types of functionality lighting, the reliability of products height along with the decay that shooting angle increases is less.
4. can make the illumination of every bit in the illumination zone all satisfy the illumination code requirement fully, promptly satisfy minimal illumination index, the highest dazzle requirement index, light intensity uniformity index and light area requirement for restriction etc.
5. non-blind area, free from glare in the irradiation area use environmental protection, are beneficial to eye health.
6. simple in structure, cost is low.
Description of drawings:
Fig. 1 is the packaged type of existing common led light source.
Fig. 2 is lambert (Lambertian) light source of 180 ° of beam angles for the led light source equivalence.
Fig. 3 is the distribution curve flux that the existing 240W symmetric form of actual measurement does not have suitable light-distribution LED street lamp,
Wherein,
(a) be the meridian plane distribution curve flux;
(b) be the largest light intensity place taper seat curve of light distribution.
Fig. 4 is the distribution curve flux of the existing 150W butterfly type light-distribution LED street lamp of actual measurement,
Wherein,
(a) be the meridian plane distribution curve flux;
(b) be the largest light intensity place taper seat curve of light distribution.
Fig. 5 is a directed plane of refraction optical schematic diagram of the present invention.
Fig. 6 is the directed astigmatism refraction of a light-distribution lens of the present invention schematic diagram.
Fig. 7 is a light-distribution lens directed beams anaclasis schematic diagram of the present invention.
Fig. 8 is the directed banded refraction schematic diagram of light-distribution lens of the present invention.
Fig. 9 is the structural representation with the directed refraction of the present invention light-distribution lens of Pro/Engineer software design.
Figure 10 is the LightTools software emulation taper seat plot of light intensity of the existing symmetric form LED street lamp that do not have suitable luminous intensity distribution.
Figure 11 is to use the LightTools software emulation taper seat plot of light intensity of the LED street lamp of the directed refraction of the present invention light-distribution lens.
Figure 12 is to use the LightTools software emulation distribution curve flux of the LED street lamp of the directed refraction of the present invention light-distribution lens.
Figure 13 is to use the engineering of the directed refraction of the present invention light-distribution lens analog simulation LED street lamp to use schematic diagram.
Figure 14 is the directed light distribution map that reflects the LED street lamp of nonimaging optics light-distribution lens of use the present invention of actual measurement.
Figure 15 is the directed distribution curve flux that reflects the LED street lamp of nonimaging optics light-distribution lens of use the present invention of actual measurement,
Wherein,
(a) be the meridian plane distribution curve flux;
(b) be the largest light intensity place taper seat curve of light distribution.
Figure 16 is the comparison diagram of the LED street lamp of same power, same light source, different lens condition,
Wherein,
(a) be the common thick lens LED street lamp that waits;
(b) be directed refractor LED street lamp;
(c) be the common thick lens that waits;
(d) be directed refractor.
Figure 17 is the distribution curve flux that actual measurement 150W uses the LED street lamp of the directed refraction of the present invention nonimaging optics light-distribution lens,
Wherein,
(a) be the meridian plane distribution curve flux;
(b) be the largest light intensity place taper seat curve of light distribution.
The specific embodiment
The directed refraction principle of light-distribution lens of the present invention:
(1.1) Snell's law: light incides on the interface of different medium, and reflection and refraction can take place.Wherein incident light and refract light are positioned on the same plane, and satisfy following relationship with the angle of interface normal:
Si Nieer formula N mSin θ m=N nSin θ n,
N wherein mAnd N nBe respectively the refractive index of two media, θ mAnd θ nBe respectively incidence angle and refraction angle.
(1.2) the directed refraction principle of light-distribution lens:
As shown in Figure 5, the incident medium refractive index N of light-distribution lens 1, light-distribution lens refractive index N 2, the emergent medium refractive index N of LED light behind light-distribution lens 3LED light is incident to the incidence angle θ of light-distribution lens 1, inject the refraction angle θ behind the light-distribution lens 2, outgoing is to the incidence angle θ of emergent medium 3, the angle of emergence θ behind light-distribution lens 4The plane of incidence 201 of light-distribution lens and the angle theta of exit facet 202.The refractive index N of lenticular body 203 2=1.56; Incident medium, the emergent medium of lenticular body 203 are air, then incident medium refractive index N 1=emergent medium refractive index N 3=1.
When the light of led light source when air is incident to lenticular body 203, N 2＞N 1θ then 1＞θ 2, the refraction of deflection normal takes place in light; When light when lenticular body 203 is injected the air, N 2＞N 3, θ then 4＞θ 3, the refraction of light generation off-normal, its off-normal, the angle of directed refraction is θ 4
∵θ 1＝θ，
N 1sinθ 1＝N 2sinθ 2
sinθ 2＝N 1sinθ 1/N 2
θ 2＝sin -1(N 1sinθ 1/N 2)＝sin -1(N 1sinθ/N 2)
θ 3＝θ 1-θ 2＝θ-θ 2＝θ-sin -1(N 1sinθ/N 2)
N 3sinθ 4＝N 2sinθ 3
sinθ 4＝N 2sinθ 3/N 3
θ 4＝sin -1(N 2sinθ 3/N 3)
Be θ 4=sin -1(N 2Sin (θ-sin -1(N 1Sin θ/N 2)/N 3))
If θ=30 °
θ then 4=sin -1((30 °-sin of 1.56sin -1(sin30 °/1.56)))=18 °
(1.3) the directed astigmatism refraction of light-distribution lens: as shown in Figure 6, can equivalence be after the LED light of the Lambertian source of 180 ° of beam angles passes directed astigmatic profile of tooth lens, light can be towards vertical with profile of tooth and off-centered direction refraction, can change the optical field distribution shape thus, the refractive direction light intensity is improved, other direction light intensity decreasings also can carry out diffuse light and learn processing.
(1.4) light-distribution lens directed beams anaclasis: as shown in Figure 7, can equivalence be after the LED light of the Lambertian source of 180 ° of beam angles passes directed beams light profile of tooth lens, light can be towards vertical with profile of tooth and towards the refraction of the direction at center, can change the optical field distribution shape thus, the refractive direction light intensity is improved, other direction light intensity decreasings also can reflect compression and light uniform treatment to exposing to effective lighting zone light in addition.
(1.5) the banded directed astigmatism refraction of light-distribution lens: as shown in Figure 8, can equivalence be after the LED light of the Lambertian source of 180 ° of beam angles passes the directed banded refractor of profile of tooth, light can be towards vertical banded direction refraction with profile of tooth, make the optical field distribution shape that becomes band, improve in banded direction light intensity, other direction light intensity decreasings also can carry out the light uniform treatment.
Referring to Fig. 5, concrete structure of the present invention is as follows:
Lenticular body 203 of the present invention has the plane of incidence 201 and exit facet 202.The plane of incidence 201 is the LED plane of light incidence, and the plane of incidence 201 can be plane or curved surface.The plane of incidence 201 is arranged as profile of tooth; The plane of incidence 201 that is arranged as profile of tooth generally is arranged on the same datum level, and this datum level can be plane or curved surface.Exit facet 202 can be plane or curved surface.Angle theta=0～90 of the plane of incidence 201 and exit facet 202 °.The plane of incidence 201, exit facet 202 can be the continuous curve surfaces that flex point is arranged or do not have flex point, also can be interrupted curved surfaces.
Lenticular body 203 of the present invention can adopt glass material, PC material or PMMA material etc.Characteristics such as that glass material has is high temperature resistant, penetrance height.The PC material is a makrolon material, and the PMMA material is a polymethyl methacrylate materials, and not only penetrance is higher for these two kinds of materials, realizes aspheric surface optically focused easily, reduces the yellow milky spot phenomenon of hot spot, can also make the product injection mo(u)lding, makes production cost lower.Lenticular body 203 also can adopt transparent PS material, and promptly the transparent polystyrene material is commonly called as benzene.
Analog simulation lighting example with the directed refraction of the present invention nonimaging optics light-distribution lens:
Utilize the present invention that the orientation refraction light-distribution lens of different directions is made up, luminous intensity distribution is carried out in the projection light light distribution of led light source, can make light distribution satisfy application request.
Fig. 9 is the directed refraction of the LED light fixture light-distribution lens with the design of Pro/Engineer software, and the requirement of road lighting light distribution is satisfied in its light distribution fully.According to road shape nonuseable part light distribution beyond roadside, the limit, room is reflected compression, road is reflected enhancing along the useful light distribution of stretching direction, carry out diffuse light simultaneously and learn processing.
And Figure 10 to be symmetric form do not have suitable light-distribution LED street lamp LightTools software emulation taper seat plot of light intensity, it is circular that it is shaped as symmetry, and the central area light intensity is very strong; Radially away from the center of circle, light intensity decays rapidly with cosine-shaped.Be that most of luminous flux shines the central area, peripheral light intensity is very weak.
Figure 11 is to use the LED street lamp LightTools software emulation taper seat plot of light intensity of the directed refraction of the present invention light-distribution lens, and its shape approximation is a rectangle, and light intensity is even in the rectangular region, and is evenly linear away from the peritropous light distribution in rectangle center.
Figure 12 is to use the directed refraction of the present invention light-distribution lens LED street lamp LightTools software emulation distribution curve flux.
At the long limit C shown in the solid line 0Face, the beam angle during its light intensity 40% is:
C 0＝(225+22.5)-(135-22.5)＝135°；
At the minor face C shown in the dotted line 90Face, the beam angle during its light intensity 40% is:
C 90＝225-135＝90°。
Figure 13 uses with the engineering of the directed refraction of the present invention light-distribution lens analog simulation LED street lamp:
40% light intensity C 0Direction (the long limit of rectangle) length:
L＝2H×tan(C 0/2)＝2H×tan(135°/2)＝4.42H；
40% light intensity C 90Direction (rectangle minor face) length:
W＝2H×tan(C 90/2)＝2H×tan(90°/2)＝2H。
That is: when satisfying orientation refraction light-distribution lens LED street lamp LightTools software emulation distribution curve flux, the light distribution that street lamp projects the road surface is approximate rectangular, the long C of rectangle 0With wide C 90Ratio be: 2.41.
By the surface of intensity distribution shown in Figure 14 and distribution curve flux shown in Figure 15 as seen: measured result and analog simulation data basically identical.Its C 0Face 40% light intensity beam angle is 133 °, its C 90Face 40% light intensity beam angle is 90 °, and the strong precision control that distributes of light has realized satisfying the need.
When the light pole height is 10m, the long limit L (C of 40% light intensity road surface distribution rectangle 0) and minor face (C 90) W is:
L＝2H×tan(C 0/2)＝2H×tan(133°/2)＝46(m)
W＝2H×tan(C 90/2)＝2H×tan(90°/2)＝20(m)
The case effect conclusion:
As shown in figure 16, reflect non-imaging light-distribution lens by orientation the energy of light is redistributed, the light that led light source sent is carried out shaping and change, thereby realized the utilization of energy of light source and the orientation control of light distribution.Orientation reflects the nonimaging optics light-distribution lens, the light of led light source is oriented has been refracted to lens surface, and the LED spot light is changed becomes the lens surface uniform surface light source, has improved the light distribution uniformity; Changed lambert's characteristic of led light source, the distribution that makes LED street lamp light intensity is along with the decay that shooting angle increases is less; It is simple in structure, the collection light angle is big, utilization ratio of optical energy is high.
Analyze the directed refraction of actual measurement 150W shown in Figure 17 nonimaging optics light-distribution lens LED road lamp light distribution curve, the result is: illumination uniformity is good, does not have dazzle along the road surface, and the illumination efficiency height realizes that the lighting requirement desired power is little.

Claims (7)

1. the non-imaging optical directional light distribution lens of a led light source, comprise lenticular body (203), this lenticular body (203) has the plane of incidence (201) and exit facet (202), it is characterized in that: the described plane of incidence (201) is the LED plane of light incidence, and the described plane of incidence (201) is arranged as profile of tooth; Angle theta=0～90 of the described plane of incidence (201) and exit facet (202) °.
2. the non-imaging optical directional light distribution lens of led light source according to claim 1, it is characterized in that: the described plane of incidence (201) that is arranged as profile of tooth is arranged on the same datum level, and this datum level is plane or curved surface.
3. the non-imaging optical directional light distribution lens of led light source according to claim 1 and 2, it is characterized in that: described exit facet (202) is plane or curved surface.
4. the non-imaging optical directional light distribution lens of led light source according to claim 3, it is characterized in that: the described plane of incidence (201) is plane or curved surface.
5. the non-imaging optical directional light distribution lens of led light source according to claim 4 is characterized in that: described lenticular body (203) is glass material, PS material, PC material or PMMA material.
6. the non-imaging optical directional light distribution lens of led light source according to claim 5 is characterized in that: the described plane of incidence (201), exit facet (202) are for having flex point or not having the continuous curve surface of flex point.
7. the non-imaging optical directional light distribution lens of led light source according to claim 5, it is characterized in that: the described plane of incidence (201), exit facet (202) are interrupted curved surface.
CN200910022670A 2009-05-22 2009-05-22 Non-imaging optical directional light distribution lens of LED light source Pending CN101684918A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200910022670A CN101684918A (en) 2009-05-22 2009-05-22 Non-imaging optical directional light distribution lens of LED light source
PCT/CN2010/073065 WO2010133183A1 (en) 2009-05-22 2010-05-21 Non-imaging optical directional light distributing lens for led light source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910022670A CN101684918A (en) 2009-05-22 2009-05-22 Non-imaging optical directional light distribution lens of LED light source

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WO (1) WO2010133183A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
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WO2010133183A1 (en) * 2009-05-22 2010-11-25 西安智海电力科技有限公司 Non-imaging optical directional light distributing lens for led light source
CN103256560A (en) * 2013-05-21 2013-08-21 柳州相光科技有限责任公司 Offset-focus optical lens
CN105042388A (en) * 2015-09-10 2015-11-11 福建鸿博光电科技有限公司 Panel lamp and light-emitting method thereof
CN106907650A (en) * 2017-04-17 2017-06-30 泉州师范学院 The greeting lamp optical element and its method for designing of a kind of generation ring of light combination pattern
US9826592B2 (en) 2015-04-28 2017-11-21 Qisda (SuZhou) Co., ltd Lamp having illumination modules with different percentage of luminance adjustment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2334042Y (en) * 1998-08-07 1999-08-18 李殿奎 High brightness luminous device
CN2486837Y (en) * 2001-06-08 2002-04-17 华锦光电科技股份有限公司 Signal lamp of light-emitting diode
CN2553238Y (en) * 2002-06-19 2003-05-28 桂林机床电器有限公司 Lampshade capable of reinforcing signal lamp effective light intensity
US7534013B1 (en) * 2003-01-16 2009-05-19 Simon Jerome H Illuminating devices using small PT sources including LEDs
US7484871B2 (en) * 2003-07-29 2009-02-03 Valeo Sylvania Llc Single lens for LED signal light
ITTO20030853A1 (en) * 2003-10-30 2005-05-01 Ct Ricerche Plast Optica S R L LUMINOUS DEVICE, IN PARTICULAR LUMINOUS PANEL FOR SIGNS OR INFORMATION TO THE PUBLIC, OR FANALE OF MOTOR VEHICLES.
GB2417790B (en) * 2004-09-07 2006-11-08 Set Europ Ltd Lighting system
US7207700B2 (en) * 2005-09-22 2007-04-24 Visteon Global Technologies, Inc. Near field lens with spread characteristics
DE202006014814U1 (en) * 2006-09-25 2007-01-04 Adolf Nissen Elektrobau Gmbh + Co. Kg Optical lens system for a warning light and such a light have convex Fresnel collecting lens on one side of LED and undulations on the other
CN101684917B (en) * 2009-05-22 2011-04-20 西安智海电力科技有限公司 Non-imaging optical directional light distribution method for LED lighting source
CN101684918A (en) * 2009-05-22 2010-03-31 西安智海电力科技有限公司 Non-imaging optical directional light distribution lens of LED light source
CN101566307B (en) * 2009-05-22 2011-04-20 西安智海电力科技有限公司 Non-imaging optical directional light distribution method for LED light source

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010133183A1 (en) * 2009-05-22 2010-11-25 西安智海电力科技有限公司 Non-imaging optical directional light distributing lens for led light source
CN103256560A (en) * 2013-05-21 2013-08-21 柳州相光科技有限责任公司 Offset-focus optical lens
US9826592B2 (en) 2015-04-28 2017-11-21 Qisda (SuZhou) Co., ltd Lamp having illumination modules with different percentage of luminance adjustment
CN105042388A (en) * 2015-09-10 2015-11-11 福建鸿博光电科技有限公司 Panel lamp and light-emitting method thereof
CN106907650A (en) * 2017-04-17 2017-06-30 泉州师范学院 The greeting lamp optical element and its method for designing of a kind of generation ring of light combination pattern

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