CN101900294A - Condensing lens and lamp using same - Google Patents

Condensing lens and lamp using same Download PDF

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Publication number
CN101900294A
CN101900294A CN201010241944XA CN201010241944A CN101900294A CN 101900294 A CN101900294 A CN 101900294A CN 201010241944X A CN201010241944X A CN 201010241944XA CN 201010241944 A CN201010241944 A CN 201010241944A CN 101900294 A CN101900294 A CN 101900294A
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line segment
lens
axis angulation
lens axis
satisfy
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CN101900294B (en
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周明杰
罗英达
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Oceans King Lighting Science and Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
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Oceans King Lighting Science and Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
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Abstract

The invention relates to a condensing lens and a lamp using the same. The condensing lens is a cone lens which is symmetrical about a lens axis, wherein the middle part of a first end face with smaller diameter dents inwardly to form a light source accommodating cavity for matching and accommodating an LED light source; the middle part of a second end face with larger diameter dents inwardly to form a convex spherical surface of which the convex side faces the second end face; the side wall of the condensing lens is a fully reflecting surface; the bus of the cone lens is a fold line and is formed by sequentially connecting a plurality of segments; and the angle between the plurality of segments and the lens axis is shown in the specifications, wherein n is the refractive index of the condensing lens. Light rays of the LED light source at any angle are condensed and fully utilized and the luminous angle of emergent rays of the condensing lens is less than 5 degrees, so that the condensation effect is greatly improved.

Description

A kind of collector lens and the light fixture that uses this collector lens
[technical field]
The present invention relates to a kind of lens, relate in particular to a kind of collector lens of led light source and light fixture that uses this collector lens of being applicable to.
[background technology]
Along with making science and technology and development of semiconductor, led light source becomes the substitute of conventional light source by force day by day with its little power consumption, brightness.
But led light source is limit by self character, and angle of radiation is very big, easily diffusion.When using led light source, need carry out optically focused to it.
At present, the paraboloidal reflector of the general employing of optically focused mode to led light source, but this mode will realize luminous angle, and very little (spending less than 5 as luminous angle) need do the reflector size bigger, otherwise the less light in the luminous angle of led light source can't be utilized, cause the final luminous angle of led light source bigger, waste a large amount of manufactured materials simultaneously.Also have and adopt convex lens that led light source is carried out optically focused, but the bigger light in the luminous angle of this mode LED can't be utilized, lower to the utilization rate of led light source luminous flux, finally cause the light efficiency utilization rate of light fixture too low.
[summary of the invention]
In view of this, be necessary to provide a kind of led light source light that makes full use of, luminous angle is less than the collector lens of 5 degree and the light fixture that uses this collector lens.
A kind of collector lens, described collector lens is with the axisymmetric circular platform type lens of lens light, less first end face of diameter middle part caves inward and forms a light source containing cavity that is used for adaptive ccontaining led light source, and described collector lens second end surface with larger diameter middle part caves inward and forms the protruding sphere of convex surface towards described second end face; The sidewall of described collector lens is a fully reflecting surface, and the bus of described circular platform type lens is a broken line, and described bus is in turn connected to form by the multistage line segment, and described multistage line segment and described lens axis angulation are
Figure BSA00000212456600021
Extremely
Figure BSA00000212456600022
Wherein, n is the collector lens refractive index.
Preferably, described protruding spherical radius is R, and R satisfies:
1/R＝1/[(n-1)L]，
Wherein, L is the distance of the sphere summit of protruding sphere to the led light source center.
Preferably, described refractive index n is 1.59, and the sphere summit of described protruding sphere is 6mm to the distance L at led light source center, and protruding spherical radius R is 3.54mm.
Preferably, described bus is in turn connected to form by 13 sections line segments, is respectively by first end face to the second end face of described collector lens: first line segment, second line segment, the 3rd line segment, the 4th line segment, the 5th line segment, the 6th line segment, the 7th line segment, the 8th line segment, the 9th line segment, the tenth line segment, the 11 line segment, the 12 line segment and the 13 line segment.
Preferably,
First line segment, satisfy with the lens axis angulation:
Second line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600024
The 3rd line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600025
The 4th line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600026
The 5th line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600027
The 6th line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600028
The 7th line segment, satisfy with the lens axis angulation:
The 8th line segment, satisfy with the lens axis angulation:
Figure BSA000002124566000210
The 9th line segment, satisfy with the lens axis angulation:
Figure BSA000002124566000211
The tenth line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600031
The 11 line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600032
The 12 line segment, satisfy with the lens axis angulation:
The 13 line segment, satisfy with the lens axis angulation:
Figure BSA00000212456600034
Preferably,
First line segment and lens axis angulation are 45.00 °;
Second line segment and lens axis angulation are 43.43 °;
The 3rd line segment and lens axis angulation are 41.87 °;
The 4th line segment and lens axis angulation are 40.32 °;
The 5th line segment and lens axis angulation are 38.79 °;
The 6th line segment and lens axis angulation are 37.30 °;
The 7th line segment and lens axis angulation are 35.84 °;
The 8th line segment and lens axis angulation are 34.43 °;
The 9th line segment and lens axis angulation are 33.08 °;
The tenth line segment and lens axis angulation are 31.80 °;
The 11 line segment and lens axis angulation are 30.60 °;
The 12 line segment and lens axis angulation are 29.50 °;
The 13 line segment and lens axis angulation are 28.50 °.
Preferably, described light source containing cavity is the column type containing cavity.
Preferably, described light source containing cavity diameter is 3mm.
Preferably, the material of described collector lens adopts Merlon or polymethyl methacrylate.
A kind of light fixture that comprises above-mentioned described collector lens.
Above-mentioned collector lens and the light fixture that uses this collector lens, first end face middle part caves inward and forms the light source containing cavity, second end face middle part caves inward and forms the protruding sphere of convex surface towards second end face, sidewall is a fully reflecting surface, the bus of circular platform type lens is a broken line, bus is in turn connected to form by the multistage line segment, and multistage line segment and lens axis angulation are
Figure BSA00000212456600041
Extremely
Figure BSA00000212456600042
To led light source at any angle light carry out optically focused, make full use of led light source light, and make the luminous angle of collector lens emergent ray less than 5 the degree, improved spotlight effect greatly.
[description of drawings]
Fig. 1 is a collector lens section of structure among the embodiment;
Fig. 2 is a collector lens structure vertical view among the embodiment;
Fig. 3 is a collector lens structure side view among the embodiment;
Fig. 4 is a collector lens schematic diagram among the embodiment;
Fig. 5 is a collector lens emergent ray distribution curve flux schematic diagram among the embodiment;
Fig. 6 is a fitting structure schematic diagram among the embodiment.
[specific embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
This collector lens is with the axisymmetric circular platform type lens of lens light, and less first end face middle part of diameter caves inward and forms a light source containing cavity that is used for adaptive ccontaining led light source; The second end surface with larger diameter middle part caves inward and forms the protruding sphere of convex surface towards second end face; The sidewall of collector lens is a fully reflecting surface, and the bus of circular platform type lens is a broken line, and bus is in turn connected to form by the multistage line segment, and this bus revolves the sidewall that three-sixth turn forms collector lens around lens axis, and multistage line segment and lens axis angulation are
Figure BSA00000212456600043
Extremely
Figure BSA00000212456600044
Wherein, n is the collector lens refractive index, the arcsin function of Arcsin (x) expression x, and its domain of definition is [1,1], function value is [90 °, 90 °].
Fig. 1 is a collector lens section of structure among the embodiment.Fig. 2 is a collector lens structure vertical view among the embodiment.Fig. 3 is a collector lens structure side view among the embodiment.In conjunction with Fig. 1 and Fig. 3, this collector lens is the circular platform type lens, comprises first end face 100, second end face 200 and the sidewall 300 that connects first end face 100 and second end face 200.
First end face, 100 middle parts cave inward and form light source containing cavity 110, and light source containing cavity 110 is the column type containing cavity, and side 111 is the face of cylinder, and bottom surface 112 is the plane.Led light source light through the side 111 and bottom surface 112 go into to inject collector lens.Among this embodiment, light source containing cavity 110 diameters are D, and size is determined according to the concrete size of led light source.When placing led light source, the led light source center overlaps with the lens axis 400 of collector lens.
Second end face 200 is an exit facet, and its middle part caves inward and forms the protruding sphere 210 of convex surface towards second end face 200.Protruding sphere 210 radiuses are R.If the sphere summit of protruding sphere 210 (being the intersection point of protruding sphere 210 and lens axis 400) is L to the distance at led light source center, the refractive index of collector lens is n, and then R satisfies following formula:
1/R＝1/[(n-1)L]
Sidewall 300 is a fully reflecting surface, and the light of led light source incident is carried out total reflection, make light after total reflection with lens axis 400 near parallel outgoing.Sidewall 300 revolves three-sixth turn by the bus 500 of circular platform type collector lens around lens axis 400 and forms.Bus 500 is a broken line, is in turn connected to form by the multistage line segment.Among this embodiment, bus 500 is in turn connected to form by 13 sections line segments, is respectively by first end face, 100 to second end faces 200:
First line segment 501, satisfy with lens axis 400 angulations:
Second line segment 502, satisfy with lens axis 400 angulations:
Figure BSA00000212456600052
The 3rd line segment 503, satisfy with lens axis 400 angulations:
Figure BSA00000212456600053
The 4th line segment 504, satisfy with lens axis 400 angulations:
Figure BSA00000212456600054
The 5th line segment 505, satisfy with lens axis 400 angulations:
Figure BSA00000212456600061
The 6th line segment 506, satisfy with lens axis 400 angulations:
Figure BSA00000212456600062
The 7th line segment 507, satisfy with lens axis 400 angulations:
Figure BSA00000212456600063
The 8th line segment 508, satisfy with lens axis 400 angulations:
Figure BSA00000212456600064
The 9th line segment 509, satisfy with lens axis 400 angulations:
The tenth line segment 510, satisfy with lens axis 400 angulations:
Figure BSA00000212456600066
The 11 line segment 511, satisfy with lens axis 400 angulations:
Figure BSA00000212456600067
The 12 line segment 512, satisfy with lens axis 400 angulations:
Figure BSA00000212456600068
The 13 line segment 513, satisfy with lens axis 400 angulations:
Figure BSA00000212456600069
In a preferred embodiment, these collector lens refractive index n=1.59, the distance L=6mm at led light source center is arrived on the sphere summit of protruding sphere 210, radius R=3.54mm, the diameter D=3mm of light source containing cavity 110, then:
First line segment 501 is 45.00 ° with lens axis 400 angulations;
Second line segment 502 is 43.43 ° with lens axis 400 angulations;
The 3rd line segment 503 is 41.87 ° with lens axis 400 angulations;
The 4th line segment 504 is 40.32 ° with lens axis 400 angulations;
The 5th line segment 505 is 38.79 ° with lens axis 400 angulations;
The 6th line segment 506 is 37.30 ° with lens axis 400 angulations;
The 7th line segment 507 is 35.84 ° with lens axis 400 angulations;
The 8th line segment 508 is 34.43 ° with lens axis 400 angulations;
The 9th line segment 509 is 33.08 ° with lens axis 400 angulations;
The tenth line segment 510 is 31.80 ° with lens axis 400 angulations;
The 11 line segment 511 is 30.60 ° with lens axis 400 angulations;
The 12 line segment 512 is 29.50 ° with lens axis 400 angulations;
The 13 line segment 513 is 28.50 ° with lens axis 400 angulations.
Fig. 4 is a collector lens schematic diagram among the embodiment.Fig. 5 is a collector lens emergent ray distribution curve flux schematic diagram among the embodiment.In conjunction with Fig. 1 to Fig. 5, led light source is arranged in the light source containing cavity 110.The light that the angle that led light source sends is less, after the refraction through bottom surface 112 and protruding sphere 210, emergent ray is approaching parallel with lens axis 400.Led light source sends the bigger light of angle, and 111 refraction arrives sidewall 300 through the side, and 300 pairs of light of sidewall are launched entirely, and is approaching parallel with lens axis 400 through the light of full emission, at last by 200 outgoing of second end face.After measured, this luminous angle of collector lens emergent ray is less than 5 degree, and spotlight effect is good.Simultaneously, be the plane partly in addition in the middle of second end face 200, effectively reduced light decay.
Among this embodiment, this collector lens adopts transparent material, is convenient to injection mo(u)lding, preferably adopts Merlon (PC) or polymethyl methacrylate (PMMA) material.
In addition, the present invention also provides a kind of light fixture that comprises above-mentioned described collector lens; As required, this light fixture can comprise the above-mentioned collector lens that same horizontal distribution rule is provided with more than two, and as shown in Figure 6, this light fixture comprises 3 above-mentioned collector lenses, 3 collector lenses are the horizontal distribution rule and are provided with, and the corresponding led light source of each collector lens.After measured, this light fixture emergent ray distribution curve flux is consistent with single collector lens emergent ray distribution curve flux, and spotlight effect is good, and this light fixture luminous flux is greatly improved simultaneously, and illuminance is greatly improved.
Above-mentioned collector lens and the light fixture that uses this collector lens, first end face middle part caves inward and forms the light source containing cavity, second end face middle part caves inward and forms the protruding sphere of convex surface towards second end face, sidewall is a fully reflecting surface, circular platform type lens bus is a broken line, bus is in turn connected to form by the multistage line segment, and multistage line segment and lens axis angulation are Extremely
Figure BSA00000212456600072
To led light source at any angle light carry out optically focused, make full use of led light source light, and make the luminous angle of collector lens emergent ray less than 5 the degree, improved spotlight effect greatly.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. collector lens, it is characterized in that, described collector lens is with the axisymmetric circular platform type lens of lens light, less first end face of diameter middle part caves inward and forms a light source containing cavity that is used for adaptive ccontaining led light source, and described collector lens second end surface with larger diameter middle part caves inward and forms the protruding sphere of convex surface towards described second end face; The sidewall of described collector lens is a fully reflecting surface, and the bus of described circular platform type lens is a broken line, and described bus is in turn connected to form by the multistage line segment, and described multistage line segment and described lens axis angulation are
Figure FSA00000212456500011
Extremely
Figure FSA00000212456500012
Wherein, n is the collector lens refractive index.
2. collector lens according to claim 1 is characterized in that, described protruding spherical radius is R, and R satisfies:
1/R＝1/[(n-1)L]，
Wherein, L is the distance of the sphere summit of protruding sphere to the led light source center.
3. collector lens according to claim 2 is characterized in that, described refractive index n is 1.59, and the sphere summit of described protruding sphere is 6mm to the distance L at led light source center, and protruding spherical radius R is 3.54mm.
4. according to claim 1 or 3 described collector lenses, it is characterized in that, described bus is in turn connected to form by 13 sections line segments, is respectively by first end face to the second end face of described collector lens: first line segment, second line segment, the 3rd line segment, the 4th line segment, the 5th line segment, the 6th line segment, the 7th line segment, the 8th line segment, the 9th line segment, the tenth line segment, the 11 line segment, the 12 line segment and the 13 line segment.
5. collector lens according to claim 4 is characterized in that,
First line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500013
Second line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500014
The 3rd line segment, satisfy with the lens axis angulation:
The 4th line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500016
The 5th line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500017
The 6th line segment, satisfy with the lens axis angulation:
The 7th line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500022
The 8th line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500023
The 9th line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500024
The tenth line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500025
The 11 line segment, satisfy with the lens axis angulation:
The 12 line segment, satisfy with the lens axis angulation:
Figure FSA00000212456500027
The 13 line segment, satisfy with the lens axis angulation:
6. collector lens according to claim 5 is characterized in that,
First line segment and lens axis angulation are 45.00 °;
Second line segment and lens axis angulation are 43.43 °;
The 3rd line segment and lens axis angulation are 41.87 °;
The 4th line segment and lens axis angulation are 40.32 °;
The 5th line segment and lens axis angulation are 38.79 °;
The 6th line segment and lens axis angulation are 37.30 °;
The 7th line segment and lens axis angulation are 35.84 °;
The 8th line segment and lens axis angulation are 34.43 °;
The 9th line segment and lens axis angulation are 33.08 °;
The tenth line segment and lens axis angulation are 31.80 °;
The 11 line segment and lens axis angulation are 30.60 °;
The 12 line segment and lens axis angulation are 29.50 °;
The 13 line segment and lens axis angulation are 28.50 °.
7. collector lens according to claim 1 is characterized in that, described light source containing cavity is the column type containing cavity.
8. according to claim 1 or 7 described collector lenses, it is characterized in that described light source containing cavity diameter is 3mm.
9. collector lens according to claim 1 is characterized in that, the material of described collector lens adopts Merlon or polymethyl methacrylate.
10. light fixture that comprises the arbitrary described collector lens of claim 1 to 9.
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102654274A (en) * 2011-03-04 2012-09-05 海洋王照明科技股份有限公司 LED (light-emitting diode) condenser lens
CN102748707A (en) * 2011-04-21 2012-10-24 海洋王照明科技股份有限公司 Floodlight total-reflection lens and LED (Light Emitting Diode) lamp using lens
CN102759067A (en) * 2011-04-26 2012-10-31 海洋王照明科技股份有限公司 LED (light-emitting diode) flooding total-reflection lens and LED lamp using same
CN102901039A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Flood total-reflection lens and LED lamp with same
CN102901041A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 LED (Light-Emitting Diode) lens and LED lamp provided with same
CN102901038A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Floodlight total reflection lens and LED (light-emitting diode) lamp with same
CN102901037A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Floodlight lens and LED (light-emitting diode) lamp with same
CN102901040A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Small LED lens and LED lamp with same
CN104053941A (en) * 2011-11-30 2014-09-17 克利公司 Optical arrangement for solid-state lighting system
CN104344338A (en) * 2013-08-05 2015-02-11 海洋王（东莞）照明科技有限公司 Condensing lens and lamp
CN105351885A (en) * 2015-12-05 2016-02-24 中山市华南理工大学现代产业技术研究院 Design method for optical lens for LED automobile front fog lamp
CN106369513A (en) * 2015-08-28 2017-02-01 陈伟景 Energy-saving LED lamp with direction and height being adjustable

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JP2010092765A (en) * 2008-10-09 2010-04-22 Suwa Optronics:Kk Illumination device
CN101761868A (en) * 2009-09-30 2010-06-30 海洋王照明科技股份有限公司 Light distribution lens and LED lamp thereof

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102654274A (en) * 2011-03-04 2012-09-05 海洋王照明科技股份有限公司 LED (light-emitting diode) condenser lens
CN102654274B (en) * 2011-03-04 2014-06-11 海洋王照明科技股份有限公司 LED (light-emitting diode) condenser lens
CN102748707B (en) * 2011-04-21 2014-05-14 海洋王照明科技股份有限公司 Floodlight total-reflection lens and LED (Light Emitting Diode) lamp using lens
CN102748707A (en) * 2011-04-21 2012-10-24 海洋王照明科技股份有限公司 Floodlight total-reflection lens and LED (Light Emitting Diode) lamp using lens
CN102759067A (en) * 2011-04-26 2012-10-31 海洋王照明科技股份有限公司 LED (light-emitting diode) flooding total-reflection lens and LED lamp using same
CN102759067B (en) * 2011-04-26 2015-07-01 海洋王照明科技股份有限公司 LED (light-emitting diode) flooding total-reflection lens and LED lamp using same
CN102901041B (en) * 2011-07-28 2015-01-14 海洋王照明科技股份有限公司 LED (Light-Emitting Diode) lens and LED lamp provided with same
CN102901039A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Flood total-reflection lens and LED lamp with same
CN102901037A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Floodlight lens and LED (light-emitting diode) lamp with same
CN102901038A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Floodlight total reflection lens and LED (light-emitting diode) lamp with same
CN102901040A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 Small LED lens and LED lamp with same
CN102901040B (en) * 2011-07-28 2014-09-17 海洋王照明科技股份有限公司 Small LED lens and LED lamp with same
CN102901037B (en) * 2011-07-28 2014-09-17 海洋王照明科技股份有限公司 Floodlight lens and LED (light-emitting diode) lamp with same
CN102901038B (en) * 2011-07-28 2014-09-17 海洋王照明科技股份有限公司 Floodlight total reflection lens and LED (light-emitting diode) lamp with same
CN102901039B (en) * 2011-07-28 2014-11-05 海洋王照明科技股份有限公司 Flood total-reflection lens and LED lamp with same
CN102901041A (en) * 2011-07-28 2013-01-30 海洋王照明科技股份有限公司 LED (Light-Emitting Diode) lens and LED lamp provided with same
CN104053941A (en) * 2011-11-30 2014-09-17 克利公司 Optical arrangement for solid-state lighting system
CN104344338A (en) * 2013-08-05 2015-02-11 海洋王（东莞）照明科技有限公司 Condensing lens and lamp
CN106369513A (en) * 2015-08-28 2017-02-01 陈伟景 Energy-saving LED lamp with direction and height being adjustable
CN105351885A (en) * 2015-12-05 2016-02-24 中山市华南理工大学现代产业技术研究院 Design method for optical lens for LED automobile front fog lamp
CN105351885B (en) * 2015-12-05 2018-10-23 中山市华南理工大学现代产业技术研究院 A kind of optical lens design method of automobile LED front fog lamp

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