CN104180292A - LED (light emitting diode) condensing lens and lamp - Google Patents
LED (light emitting diode) condensing lens and lamp Download PDFInfo
- Publication number
- CN104180292A CN104180292A CN201310193501.1A CN201310193501A CN104180292A CN 104180292 A CN104180292 A CN 104180292A CN 201310193501 A CN201310193501 A CN 201310193501A CN 104180292 A CN104180292 A CN 104180292A
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- Prior art keywords
- led
- collector lens
- lens
- led collector
- lamp
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Abstract
The invention provides an LED (light emitting diode) condensing lens. The LED condensing lens is made of a PC material, is in a cone frustum shape and comprises a paraboloid, an accommodating groove, an emergent light groove and a communicating groove, wherein the paraboloid meets a formula that y<2>=2Px, wherein the coordinate axis of the formula uses the center point of the bottom surface of the LED condensing lens as the origin, uses the central axis of the LED condensing lens as the axis x, and uses the axis vertical to the axis x as the axis y, and the value of the P is 1.5; the accommodating groove is formed in the center part of the bottom surface of the LED condensing lens and is used for accommodating an LED lamp, the emergent light groove is formed in the center part of the top surface of the LED condensing lens, the communicating groove is communicated with the accommodating groove and the communicating groove, and the LED condensing lens is integrally formed. The invention also provides a lamp. The LED condensing lens and the lamp provided by the invention have the advantages that the condensing effect can be more accurate, and in addition, the condensing lens can be firmly fixed on the lamp.
Description
Technical field
The present invention relates to a kind of lighting apparatus, relate in particular to a kind of LED collector lens and light fixture.
Background technology
In prior art, the collector lens on light fixture exists spotlight effect not good, and the utilization rate of LED luminous flux is low, cannot realize well the problem of optically focused.In addition, the collector lens on light fixture is not very firm.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that above-mentioned prior art exists, and proposes a kind of LED collector lens, can solve the not good and fixing unstable problem of LED collector lens of spotlight effect.
For solving the problems of the technologies described above, the present invention proposes a kind of LED collector lens, and the material of LED collector lens is PC, and LED collector lens is round table-like, and it comprises: parabola, and parabola meets formula:
, wherein, it is initial point that the reference axis of formula be take the central point of bottom surface of LED collector lens, take LED collector lens central shaft as
axle, with perpendicular to
axle is
axle,
value is 1.5; Holding tank, holding tank is located at the center of the bottom surface of LED collector lens, for holding LED lamp; Light output groove, light output groove is located at the center of the end face of LED collector lens; And connectivity slot, connectivity slot is communicated with holding tank and connectivity slot; Wherein, LED collector lens is one-body molded.
Preferably, the span of the radius of the bottom surface of LED collector lens is 8mm ± 0.2mm, and the span of the radius of the end face of LED collector lens is 20mm ± 0.2mm, and the high value of LED collector lens is 15mm ± 0.2mm.
Preferably, the span of the diameter of connectivity slot is 3.3mm ± 0.2mm.
Preferably, it is round table-like that light output groove is, the inclined-plane of light output groove with
the angle of axle is 10 °.
Preferably, LED collector lens is used for scope at the luminous intensity distribution of the beam angle of 7 ° to 9 °.
The present invention also proposes a kind of light fixture, and it comprises cover, lamp body, bottom, band LED aluminium base and lens unit, and lens unit comprises above-mentioned LED collector lens.
Preferably, comprise the LED lamp of 5 row 5 row with LED aluminium base, the corresponding LED lamp of lens unit is provided with the LED collector lens of 5 row 5 row.
Preferably, lens unit is provided with four columns, and column is provided with cavity, and the corresponding cavity of band LED aluminium base is provided with through hole, and lens unit is fixed on and is with on LED aluminium base by the screw mode in the cavity that through hole inserts column of pass.
Preferably, the minimum incidence angle of LED lamp directive LED flood lens is 33 °.
Compared with prior art, LED collector lens of the present invention, by simulating paraboloidal formula according to the feature of lens material, more according to this formula, manufacture lens, making lens can realize exactly total reflection, reduce light losing, is also that light is more poly-, and LED collector lens can be securely fixed on light fixture more.
Accompanying drawing explanation
Fig. 1 is the cutaway view of collector lens of the present invention.
Fig. 2 is the front view of collector lens of the present invention.
Fig. 3 is the top view of collector lens of the present invention.
Fig. 4 is the explosive view of light fixture of the present invention.
Fig. 5 is the front view of lens unit.
Fig. 6 is the top view of lens unit.
Fig. 7 is the side view of lens unit.
Fig. 8 is the index path of collector lens of the present invention.
Fig. 9 is the distribution curve flux figure of collector lens of the present invention.
Description of reference numerals is as follows: lens unit 1 LED collector lens 11 light output groove 111 holding tank 112 connectivity slot 113 parabola 114 band LED aluminium base 2 LED lamp 21 lamp body 3 bottom 4 covers 5.
The specific embodiment
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Refer to Fig. 1 to Fig. 3, LED collector lens 11 of the present invention, LED collector lens 11 is round table-like, and it comprises: parabola 114, holding tank 112, light output groove 111 and connectivity slot 113.
Refer to Fig. 1, the span of the radius a of the bottom surface of LED collector lens 11 is 8mm ± 0.2mm, and the span of the radius c of the end face of LED collector lens 11 is 20mm ± 0.2mm, and the span of the high d of LED collector lens 11 is 15mm ± 0.2mm.In the present embodiment, the radius a of the bottom surface of LED collector lens 11 is 8mm, and the radius c of end face is 20mm, and the high d of LED collector lens 11 is 15mm.
Please continue to refer to Fig. 1 to Fig. 3, parabola 114 meets formula:
.Wherein, it is initial point that the reference axis of formula be take the end face central point of LED collector lens 11, take LED collector lens 11 central shaft as
axle, with perpendicular to
axle is
axle,
value is 1.5.In order to reach good light distribution effect, the formula of expressing parabola 114 features by software simulation, manufactures the parabola 114 of LED collector lens 11 according to this formula, make LED collector lens 11 can realize total reflection.Utilize the produced LED collector lens 11 of this formula, can realize the luminous intensity distribution of the beam angle of scope between 7 ° to 9 °.
Holding tank 112 is located at the center of the bottom surface of LED collector lens 11, for holding LED lamp 21.Light output groove 111 is located at the end face center of LED collector lens 11.Light output groove 111 is round table-like, and the angle f of the inclined-plane of light output groove 111 and central shaft is 10 °.Connectivity slot 113 is communicated with holding tank 112 and connectivity slot 113.The span of the diameter b of connectivity slot 113 is 3.3mm.Wherein, LED collector lens 11 is one-body molded.
In the present embodiment, the material of LED collector lens 11 is PC(Polycarbonate, Merlon).
Refer to Fig. 4 to Fig. 7, the present invention also proposes a kind of light fixture, and it comprises cover 5, lamp body 3, bottom 4, band LED aluminium base 2 and lens unit 1.Lens unit 1 comprises above-mentioned LED collector lens 11.
In the present embodiment, comprise the LED lamp 21 of 5 row 5 row with LED aluminium base 2, the corresponding LED lamp 21 of lens unit 1 is provided with the LED collector lens 11 of 5 row 5 row.
Lens unit 1 is provided with four columns.Column is provided with cavity, and band LED aluminium base 2 corresponding cavitys are provided with through hole, and lens unit 1 is fixed on and is with on LED aluminium base 2 by the screw mode in the cavity that through hole inserts column of pass.
Refer to Fig. 8, according to refraction principle, from lens, inject to the light of air, when incidence angle is greater than certain value (critical value), the angle of emergence is 90 degree, start to occur total reflection, because the material of LED collector lens 11 of the present invention is PC, it is 23 ° that the critical table of looking into this material obtains critical value, in the light of the parabola 114 of directive LED collector lens 11, incidence angle minimum is 33 °, is greater than critical value, meets total reflection.Light, after parabola 114 reflections, vertically penetrates from lens front end, and light does not change.The light of mid portion does not directly penetrate through lens, has so both reduced light losing, makes light more poly-yet.Light, after parabola 114 reflections, vertically penetrates from lens front end, and light does not change.The light of mid portion does not directly penetrate through lens, has so both reduced light losing, makes light more poly-yet.
Refer to Fig. 9, from distribution curve flux, can learn, source light is after parabola 114 reflections, and maximum luminous intensity is 7000 cd (candela, candela) left and right, and the luminous intensity of half is 3500cd, can show that in the figure beam angle is 8 °.
Compared with prior art, LED collector lens of the present invention, by simulating paraboloidal formula according to the feature of lens material, more according to this formula, manufacture lens, making lens can realize exactly total reflection, reduce light losing, is also that light is more poly-, and LED collector lens can be securely fixed on light fixture more.
The foregoing is only better possible embodiments of the present invention, not limit the scope of the invention.The equivalent structure that all utilizations description of the present invention and accompanying drawing content have been done changes, and is all included in protection scope of the present invention.
Claims (9)
1. a LED collector lens, the material of described LED collector lens is PC, it is characterized in that, and described LED collector lens is round table-like, and it comprises:
Parabola, described parabola meets formula:
, wherein, it is initial point that the reference axis of described formula be take the central point of bottom surface of described LED collector lens, take described LED collector lens central shaft as
axle, with perpendicular to described
axle is
axle,
value is 1.5;
Holding tank, described holding tank is located at the center of the bottom surface of described LED collector lens, for holding described LED lamp;
Light output groove, described light output groove is located at the center of the end face of described LED collector lens; And
Connectivity slot, described connectivity slot is communicated with described holding tank and connectivity slot;
Wherein, described LED collector lens is one-body molded.
2. LED collector lens as claimed in claim 1, it is characterized in that, the span of the radius of the bottom surface of described LED collector lens is 8mm ± 0.2mm, the span of the radius of the end face of described LED collector lens is 20mm ± 0.2mm, and the high value of described LED collector lens is 15mm ± 0.2mm.
3. LED collector lens as claimed in claim 1, is characterized in that, the span of the diameter of described connectivity slot is 3.3mm ± 0.2mm.
4. LED collector lens as claimed in claim 1, is characterized in that, described light output groove is round table-like, the inclined-plane of described light output groove with described in
the angle of axle is 10 °.
5. LED collector lens as claimed in claim 1, is characterized in that, described LED collector lens is the luminous intensity distribution at the beam angle of 7 ° to 9 ° for scope.
6. a light fixture, is characterized in that, it comprises cover, lamp body, bottom, band LED aluminium base and lens unit, and described lens unit comprises the LED collector lens as described in claim 1 to 5 any one.
7. light fixture as claimed in claim 6, is characterized in that, the described LED lamp that comprises 5 row 5 row with LED aluminium base, and the corresponding described LED lamp of described lens unit is provided with the LED collector lens of 5 row 5 row.
8. light fixture as claimed in claim 6, it is characterized in that, described lens unit is provided with four columns, described column is provided with cavity, the corresponding described cavity of described band LED aluminium base is provided with through hole, and the mode that described lens unit passes in the cavity that described through hole inserts described column by screw is fixed on described band LED aluminium base.
9. light fixture as claimed in claim 6, is characterized in that, the minimum incidence angle of LED flood lens is 33 ° described in described LED lamp directive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193501.1A CN104180292A (en) | 2013-05-22 | 2013-05-22 | LED (light emitting diode) condensing lens and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193501.1A CN104180292A (en) | 2013-05-22 | 2013-05-22 | LED (light emitting diode) condensing lens and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104180292A true CN104180292A (en) | 2014-12-03 |
Family
ID=51961525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310193501.1A Pending CN104180292A (en) | 2013-05-22 | 2013-05-22 | LED (light emitting diode) condensing lens and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104180292A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020607A (en) * | 2015-03-05 | 2015-11-04 | 立达信绿色照明股份有限公司 | LED lens and lamp using LED lens |
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|---|---|---|---|---|
| CN101187448A (en) * | 2006-11-16 | 2008-05-28 | 宁波安迪光电科技有限公司 | LED spotlight |
| CN201187734Y (en) * | 2008-01-29 | 2009-01-28 | 张春涛 | LED condensing lens |
| US20100157434A1 (en) * | 2008-12-23 | 2010-06-24 | Samsung Electronics Co., Ltd. | Collimate lens assembly |
| CN101900295A (en) * | 2010-08-17 | 2010-12-01 | 王海军 | High-power LED small angle-packaged lens structure |
| CN101988640A (en) * | 2009-07-29 | 2011-03-23 | 苏州璨宇光学有限公司 | Lighting device and backlight module applying same |
| CN102080806A (en) * | 2009-11-27 | 2011-06-01 | 富准精密工业(深圳)有限公司 | Light-emitting diode module |
| CN202521494U (en) * | 2012-03-19 | 2012-11-07 | 厦门晶牌照明有限公司 | Thin LED (light-emitting diode) aisle lamp lens |
-
2013
- 2013-05-22 CN CN201310193501.1A patent/CN104180292A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187448A (en) * | 2006-11-16 | 2008-05-28 | 宁波安迪光电科技有限公司 | LED spotlight |
| CN201187734Y (en) * | 2008-01-29 | 2009-01-28 | 张春涛 | LED condensing lens |
| US20100157434A1 (en) * | 2008-12-23 | 2010-06-24 | Samsung Electronics Co., Ltd. | Collimate lens assembly |
| CN101988640A (en) * | 2009-07-29 | 2011-03-23 | 苏州璨宇光学有限公司 | Lighting device and backlight module applying same |
| CN102080806A (en) * | 2009-11-27 | 2011-06-01 | 富准精密工业(深圳)有限公司 | Light-emitting diode module |
| CN101900295A (en) * | 2010-08-17 | 2010-12-01 | 王海军 | High-power LED small angle-packaged lens structure |
| CN202521494U (en) * | 2012-03-19 | 2012-11-07 | 厦门晶牌照明有限公司 | Thin LED (light-emitting diode) aisle lamp lens |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020607A (en) * | 2015-03-05 | 2015-11-04 | 立达信绿色照明股份有限公司 | LED lens and lamp using LED lens |
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Application publication date: 20141203 |
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