CN103775886A - Light control assembly and LED lamp - Google Patents
Light control assembly and LED lamp Download PDFInfo
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- CN103775886A CN103775886A CN201410046108.4A CN201410046108A CN103775886A CN 103775886 A CN103775886 A CN 103775886A CN 201410046108 A CN201410046108 A CN 201410046108A CN 103775886 A CN103775886 A CN 103775886A
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Abstract
The invention relates to a light control assembly and an LED (Light-Emitting Diode) lamp. The LED lamp comprises a printed circuit board, a plurality of groups of radiating fins, a Fresnel lens set and a frame, wherein one side of the printed circuit board is used for being electrically connected with a plurality of LED chips; a primary lens and a secondary lens are sequentially arranged on each LED chip in the light outgoing direction; the plurality of groups of radiating fins are arranged on the other side of the printed circuit board in a heat conducting manner; the Fresnel lens set comprises a plurality of Fresnel lenses; each Fresnel lens independently corresponds to one LED chip; the printed circuit board and the Fresnel lens set are respectively embedded on both sides of the frame; the light control assembly is formed by the primary lenses, the secondary lenses and the Fresnel lenses. In the light control assembly, the primary lenses, the secondary lenses and the Fresnel lenses are sequentially arranged on the axis. According to the light control assembly and the LED lamp which are disclosed by the invention, light is stable and uniform, long-range light illumination meets the illumination standard, the light emitting efficiency is high, and the lamp has a compact structure and a small size and is convenient to maintain.
Description
Technical field
The present invention relates to control optical assembly and the LED light fixture of LED lighting field, particularly relate to a kind of control optical assembly and LED light fixture of arrow beam of light.
Background technology
Along with the development of semiconductive luminescent materials and technique, light emitting diode (LED) replaces conventional light source just gradually, become light source of new generation, be widely used in projection lamp, reading lamp, car headlamp etc., although there is the advantage such as high-efficiency environment friendly, durable safety, but its output intensity is cosine distribution roughly, be therefore conventionally considered to approximate Lambertian radiator.Such spatial light intensity distributes, if processed and directly application without suitable optical system, in most cases all be difficult to meet the light fixture of illumination and the performance indications that device will reach, also can greatly reduce because of the existence of a large amount of invalid light the efficiency of system simultaneously.Secondary optical design for LED can effectively be modulated LED illuminator light distribution characteristic, and its optical field distribution is met the different needs.
LED is applied in narrow optical illumination, can realize long distance illumination.Low-power LED arrow beam of light light fixture is mainly the control light of realizing illumination by reflector at present, but its control light is limited in one's ability, mainly has following deficiency: one, easily produce veiling glare, source efficiency is reduced; Two, light fixture volume increase, service life section, maintenance period is short; Three, reflector cost is higher.Due to size and its chip size relation in direct ratio of LED power, great power LED has larger chip size, therefore conventional narrow photocontrol is applied to great power LED also certain limitation, and has the shortcomings such as illumination distances is short, illumination is unadjustable, efficiency is low, maintenance is inconvenient.
Summary of the invention
Because the existing defect of above-mentioned prior art the object of the present invention is to provide a kind of control optical assembly and LED light fixture, make its light stable and uniform, far lighting meets lighting criteria, and luminous efficiency is high, and fitting structure compact volume is little easy to maintenance.
To achieve these goals, the one control optical assembly proposing according to the present invention, for the control light of LED chip light source, it comprises: one-level lens are aspheric surface convex lens, and the one side of incident ray is plane, and the one side of emergent ray is quadratic surface; Secondary lens, are aspheric surface convex lens, and the one side of incident ray is plane, and the one side of emergent ray is quadratic surface; And Fresnel Lenses group, the one side of incident ray is plane, the one side of emergent ray is the concentrically ringed array arrangement that spacing changes; Wherein these one-level lens, these secondary lens and this Fresnel Lenses, be set in sequence on axis.
The present invention also can be applied to the following technical measures to achieve further.
Aforesaid control optical assembly, wherein said one-level lens and secondary lens are integrated set of lenses.
Aforesaid control optical assembly, the light of wherein said LED chip outgoing is 15 to 18 degree by emergent ray light emitting anger after these one-level lens and this secondary lens reflection successively, is preferably 16 degree; After this Fresnel Lenses refraction, the final light emitting anger of light is in 1 degree again.
To achieve these goals, a kind of LED light fixture also proposing according to the present invention, it comprises: printed circuit board (PCB), and a side of this printed circuit board (PCB) is used for being electrically connected multiple LED chips, on each LED chip, is disposed with one-level lens and secondary lens along light direction; Organize fin more, be arranged on the opposite side of this printed circuit board (PCB) with heat-conducting mode; Fresnel Lenses group, comprises multiple Fresnel Lenses, and each Fresnel Lenses is independent corresponding with this LED chip; And framework, this printed circuit board (PCB) and this Fresnel Lenses group are entrenched in respectively the both sides of framework; Wherein, these one-level lens, secondary lens and Fresnel Lenses formation are controlled optical assembly as the aforementioned.
Aforesaid LED light fixture, wherein said printed circuit board (PCB) is spliced by multiple sub-circuit boards; One side heat-conducting mode of each this sub-circuit board is installed one group of fin, and the opposite side of this sub-circuit board is electrically connected multiple LED chips, and each this LED chip last time arranges these one-level lens and these secondary lens, and then forms light source radiating module.
Aforesaid LED light fixture, it also comprises lampshade, this lampshade comprises this Fresnel Lenses group and is arranged on the outer rim at this Fresnel Lenses group edge.
Aforesaid LED light fixture, the bottom of wherein said Fresnel Lenses group is provided with transparent support member.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, control optical assembly of the present invention and LED light fixture, at least have following advantages:
One, control optical assembly of the present invention and LED light fixture, luminous intensity is high, and luminous flux is large, and beam angle is little, and uniform-illumination can meet different specific demands.
Two, LED light fixture of the present invention, compact conformation, volume is little.
Two, LED light fixture of the present invention, modularity design, can be for different demands, build different modules and module quantity, flexible and convenient to use.
Four, control optical assembly of the present invention and LED light fixture, control optic angle degree is little, and beam angle is controlled in 1 degree, is applicable to long distance illumination.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of LED light fixture of the present invention preferred embodiment.
Fig. 2 is the perspective exploded view of LED light fixture of the present invention preferred embodiment.
Fig. 3 is the light source radiating module assembling schematic diagram of LED light fixture of the present invention preferred embodiment.
Fig. 4 is the structural representation of control optical assembly of the present invention preferred embodiment.
Fig. 5 is the principle schematic of control optical assembly of the present invention preferred embodiment.
Fig. 6 is the one-level lens arrangement schematic diagram of control optical assembly of the present invention.
Fig. 7 is the secondary lens arrangement schematic diagram of control optical assembly of the present invention.
Fig. 8 is the Fresnel Lenses partial structurtes schematic diagram of control optical assembly of the present invention.
Fig. 9 is the integrated Fresnel Lenses group schematic diagram of control optical assembly of the present invention.
Figure 10 is the simulated effect figure of LED light fixture of the present invention.
The specific embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, the control optical assembly proposing according to the present invention and its specific embodiment of LED light fixture, step, structure, feature and effect thereof are described in detail.
Referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, is respectively that schematic perspective view, perspective exploded view, the light source radiating module of LED light fixture of the present invention preferred embodiment assembled the structural representation of schematic diagram, control optical assembly, the principle schematic of control optical assembly.
The LED light fixture 1 of preferred embodiment of the present invention, comprises printed circuit board (PCB) 3, organizes fin 4 more, framework 5 and Fresnel Lenses group 23.
One side of this printed circuit board (PCB) 3 is electrically connected multiple LED chips 20, on each LED chip 20, is disposed with one-level lens 21 and secondary lens 22 along light direction.This radiating element 4 fits tightly the opposite side at this printed circuit board (PCB) 3 by heat-conducting cream; This printed circuit board (PCB) 3 and this Fresnel Lenses group 23 are entrenched in respectively the both sides of framework 5.This Fresnel Lenses group 23 comprises multiple Fresnel Lenses 235, and each Fresnel Lenses 235 is independent corresponding with this LED chip 20.These one-level lens 21, secondary lens 22 and Fresnel Lenses 235 form a control optical assembly 2.Framework 5 can regulate as required the bright dipping elevation angle of light fixture and support above-mentioned parts.
Above-mentioned printed circuit board (PCB) 3 can be spliced by multiple sub-circuit boards 31.The gluing one group of fin 4 of one side of each this sub-circuit board 31, the opposite side of this sub-circuit board 31 is electrically connected for example five LED chips 20 arranged in a straight line of multiple LED chip 20(), each 20 last time of LED chip arranges one-level lens 21 and secondary lens 22, and then forms light source radiating module 7.In one embodiment, can splice a side that is entrenched in framework 5 after 20 light source radiating modules 7.
Quantity and array way that this light source radiating module 7 is entrenched in framework 5 also can have different modes, for example, can be that rectangular array can be also circular array, can be also erose arrays.
One-level lens 21, secondary lens 22 and the Fresnel Lenses 235 of this control optical assembly 2, be set in sequence in axis L upper, and LED chip 20, one-level lens 21, secondary lens 22 and Fresnel Lenses 235 are with axis L structure axisymmetricly.
It (is 120 degree in the present embodiment that these LED chip 20 emergent ray lighting angles exceed 110 degree, power is more than 15W), the light of these LED chip 20 outgoing reflects rear outgoing by one-level lens 21 and secondary lens 22 successively, after 22 refractions of secondary lens, emergent ray light emitting anger is 15 to 18 degree, is preferably 16 degree; After 22 refractions of secondary lens, the light of outgoing is by this Fresnel Lenses 235, and after these Fresnel Lenses 235 refractions, the final light emitting anger of light is in 1 degree.This Fresnel Lenses group 23 can be that multiple Fresnel Lenses 235 form integrated Fresnel Lenses group.
Shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9, be respectively one-level lens arrangement schematic diagram, secondary lens arrangement schematic diagram, Fresnel Lenses partial structurtes schematic diagram and the Fresnel Lenses group schematic diagram of control optical assembly 2 of the present invention.
These one-level lens 21 are aspheric surface convex lens, adopt acrylic material to make, and surface finish, has high light transmittance.Wherein the one side 211 of incident ray is plane, and the one side 212 of emergent ray is quadratic surface.In one embodiment, these one-level lens 21 center thicknesses are 8mm to 10mm, and exiting surface coefficient of curvature is to bear 0.6 to bearing 0.8, but not as limit.LED chip 20 emergent raies that lighting angle 120 is spent, after 21 refractions of one-level lens, light emitting anger is gathered.
These secondary lens 22 are aspheric surface convex lens, adopt acrylic material to make, and surface finish, has high light transmittance.Wherein, simultaneously (incidence surface) 221 is plane, and one side (exiting surface) 222 is quadratic surface in addition.In one embodiment, these secondary lens 22 center thicknesses are 13mm to 17mm, and exiting surface coefficient of curvature is negative 0.9 to negative 1.1.Light after these one-level lens 21 refractions is reflected by secondary lens 22 again, and the light emitting anger after 22 refractions of secondary lens is 15 to 18 degree, is preferably 16 degree.These one-level lens 21 and secondary lens 22 can be integrated set of lenses, and these one-level lens 21 are 10mm to 12mm with these secondary lens 22 spacings.
This Fresnel Lenses 235 adopts acrylic material or glass material to make, and wherein, the one side 2351 of the incident ray of Fresnel Lenses 235 is plane, the concentrically ringed array arrangement that the one side 2352 of emergent ray changes for spacing.In one embodiment, these Fresnel Lenses 235 focal lengths are 530m to 560mm.Distance 460mm to 500mm between this Fresnel Lenses 235 and this secondary lens 22.
The control optical assembly 2 of the present embodiment, in the time that light source is 800lmLED chip size, more than the illumination at 100m place reaches 120lux, bright dipping half-angle is 1 °.The control optical assembly 2 of the present embodiment, bright dipping is even, and collimation is strong, and irradiation distance is far away.
Above-mentioned Fresnel Lenses group 23 can be built into an integrated lampshade, lampshade is by the Fresnel Lenses 235 of array and be arranged at peripheral outer rim 233 and form, in order to improve the stability of light fixture entirety, Fresnel Lenses group 23 bottoms are provided with transparent support member 234.This lampshade is except having the effect of parallel rays of correction, can also dustproof and waterproof, and the service life of improving product.
Referring to shown in Figure 10, is the simulated effect figure of LED light fixture of the present invention.The LED light fixture of preferred embodiment of the present invention, simulation result shows, and rising angle was in once, and compared with traditional lighting lamp, under equal luminous flux condition, energy consumption is lower than traditional lighting lamp, and light is even.
Although the present invention discloses as above with preferred embodiment, so not in order to limit scope of the invention process, the simple equivalence of doing according to claims of the present invention and description changes and modifies, and still belongs in the scope of technical solution of the present invention.
Claims (7)
1. a control optical assembly, for the control light of LED chip light source, is characterized in that comprising:
One-level lens, are aspheric surface convex lens, and the one side of incident ray is plane, and the one side of emergent ray is quadratic surface;
Secondary lens, are aspheric surface convex lens, and the one side of incident ray is plane, and the one side of emergent ray is quadratic surface; And
Fresnel Lenses group, the one side of incident ray is plane, the one side of emergent ray is the concentrically ringed array arrangement that spacing changes;
Wherein these one-level lens, these secondary lens and this Fresnel Lenses, be set in sequence on axis.
2. control optical assembly as claimed in claim 1, is characterized in that described one-level lens and secondary lens are integrated set of lenses.
3. control optical assembly as claimed in claim 1, is characterized in that the light of this described LED chip outgoing is 15 to 18 degree by emergent ray light emitting anger after these one-level lens and this secondary lens reflection successively; After this Fresnel Lenses refraction, the final light emitting anger of light is in 1 degree again.
4. a LED light fixture, is characterized in that comprising:
Printed circuit board (PCB), a side of this printed circuit board (PCB) is used for being electrically connected multiple LED chips, on each LED chip, is disposed with one-level lens and secondary lens along light direction;
Organize fin more, be arranged on the opposite side of this printed circuit board (PCB) with heat-conducting mode;
Fresnel Lenses group, comprises multiple Fresnel Lenses, and each Fresnel Lenses is independent corresponding with this LED chip; And
Framework, this printed circuit board (PCB) and this Fresnel Lenses group are entrenched in respectively the both sides of framework,
Wherein, these one-level lens, secondary lens and Fresnel Lenses form as the control optical assembly as described in arbitrary in claims 1 to 3.
5. LED light fixture as claimed in claim 4, is characterized in that described printed circuit board (PCB) is spliced by multiple sub-circuit boards; One side heat-conducting mode of each this sub-circuit board is installed one group of fin, and the opposite side of this sub-circuit board is electrically connected multiple LED chips, and each this LED chip last time arranges these one-level lens and these secondary lens, and then forms light source radiating module.
6. LED light fixture as claimed in claim 4, characterized by further comprising lampshade, and this lampshade comprises this Fresnel Lenses group and is arranged on the outer rim at this Fresnel Lenses group edge.
7. the LED light fixture as described in arbitrary claim in claim 4 to 6, is characterized in that the bottom of this Fresnel Lenses group is provided with transparent support member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046108.4A CN103775886A (en) | 2014-02-08 | 2014-02-08 | Light control assembly and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046108.4A CN103775886A (en) | 2014-02-08 | 2014-02-08 | Light control assembly and LED lamp |
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| Publication Number | Publication Date |
|---|---|
| CN103775886A true CN103775886A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410046108.4A Pending CN103775886A (en) | 2014-02-08 | 2014-02-08 | Light control assembly and LED lamp |
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| CN (1) | CN103775886A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504453A (en) * | 2017-09-28 | 2017-12-22 | 赛尔富电子有限公司 | A kind of filter glass, the LED and illuminator with the filter glass |
| CN115307109A (en) * | 2022-08-09 | 2022-11-08 | 深圳市拓普光照明科技有限公司 | Method for manufacturing LED searchlight by using fly-eye lens and Fresnel lens |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000164010A (en) * | 1998-11-27 | 2000-06-16 | Ichikoh Ind Ltd | Lighting fixture for vehicle using led as light source |
| CN201314521Y (en) * | 2008-11-14 | 2009-09-23 | 杰森医疗设备(上海)有限公司 | Shadowless lamp |
| CN201636698U (en) * | 2010-03-26 | 2010-11-17 | 广州市雅江光电设备有限公司 | LED beam lamp optical system |
| CN202017942U (en) * | 2011-04-27 | 2011-10-26 | 广州市番禺区南艺灯光音响实业有限公司 | High-power led soft light lamp |
| CN202349763U (en) * | 2011-11-16 | 2012-07-25 | 广州市雅江光电设备有限公司 | Optical system of LED (light emitting diode) light beam lamp |
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2014
- 2014-02-08 CN CN201410046108.4A patent/CN103775886A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000164010A (en) * | 1998-11-27 | 2000-06-16 | Ichikoh Ind Ltd | Lighting fixture for vehicle using led as light source |
| CN201314521Y (en) * | 2008-11-14 | 2009-09-23 | 杰森医疗设备(上海)有限公司 | Shadowless lamp |
| CN201636698U (en) * | 2010-03-26 | 2010-11-17 | 广州市雅江光电设备有限公司 | LED beam lamp optical system |
| CN202017942U (en) * | 2011-04-27 | 2011-10-26 | 广州市番禺区南艺灯光音响实业有限公司 | High-power led soft light lamp |
| CN202349763U (en) * | 2011-11-16 | 2012-07-25 | 广州市雅江光电设备有限公司 | Optical system of LED (light emitting diode) light beam lamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504453A (en) * | 2017-09-28 | 2017-12-22 | 赛尔富电子有限公司 | A kind of filter glass, the LED and illuminator with the filter glass |
| CN107504453B (en) * | 2017-09-28 | 2023-11-14 | 赛尔富电子有限公司 | Light filtering lens, LED lamp with light filtering lens and lighting system |
| CN115307109A (en) * | 2022-08-09 | 2022-11-08 | 深圳市拓普光照明科技有限公司 | Method for manufacturing LED searchlight by using fly-eye lens and Fresnel lens |
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Application publication date: 20140507 |