CN103712158A - Lens and led luminous module - Google Patents
Lens and led luminous module Download PDFInfo
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- CN103712158A CN103712158A CN201210380155.3A CN201210380155A CN103712158A CN 103712158 A CN103712158 A CN 103712158A CN 201210380155 A CN201210380155 A CN 201210380155A CN 103712158 A CN103712158 A CN 103712158A
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Abstract
The invention relates to a lens (1) for a light source. The lens (1) is characterized by comprising a carrier (15), a plurality of first micro-lens elements (13) and a plurality of second micro-lens elements (14). The first micro-lens elements (13) are arranged on a first side (11) of the carrier (15); the second micro-lens elements (14) are arranged on a second side (12) of the carrier (15), the second side (12) of the carrier (15) is opposite to the first side (11) of the carrier (15), the first micro-lens elements (13) are used for distributing light intensities of emergent light beams in a first direction, the second micro-lens elements (14) are used for distributing the light intensities of the emergent light beams in a second direction, and the first direction is different from the second direction. The invention further relates to an LED luminous module.
Description
Technical field
The present invention relates to a kind of lens and the LED light emitting module that comprises these lens.
Background technology
Because LED light source has life-span length, saves the energy, environmental friendliness, prevents the advantages such as vibrations, therefore, LED light source can be applied in field widely.
LED light source is applied in track lamp, conventionally, because illuminated object changes, therefore sometimes needs the lamp with different beam angles to satisfy the demand, and for example circular light distributes or ellipse-shaped light distributes.
In the prior art, there is lens subassembly and LED light emitting module, so that corresponding optical demands to be provided.This kind of scheme comprises LED module, collimation lens and outer cover lens, before wherein collimation lens is arranged on outer cover lens in light path.Wherein collimation lens is adjusted to collimated light beam by the light from LED module, and outer cover lens adjust the direction of the light of self-focus lens afterwards, to realize needed light, distributes.But the shortcoming of this kind of scheme is, for example, forming in oval photodistributed situation, and the included microlens array of outer cover lens determines the light intensity distributions of oval-shaped long axis direction, and the light intensity distributions of oval-shaped short-axis direction is decided by collimation lens.The lens subassembly consisting of collimation lens and outer cover lens determines that light distributes jointly.There is certain deficiency meeting aspect the lamp of different beam angles in this scheme, need to replace the conversion that lens subassembly is realized different beam angles.
Summary of the invention
Therefore the object of the invention is to, propose a kind of lens, the shortcoming that it can overcome various solutions of the prior art, has and the various advantages such as is convenient to meet different photodistributed demands, easy for installation, design freedom is high.
According to the present invention proposes a kind of lens for light source, it is characterized in that, comprising: carrier; Be arranged on the first lenticular lens elements of the first side on described carrier; Be arranged on the second lenticular lens elements in second side relative with described the first side of described carrier, described the first lenticular lens elements is provided for producing irradiating light beam light distribution in a first direction, and described the second lenticular lens elements is provided for producing the light distribution of irradiating light beam in second direction, and wherein said first direction is different with second direction.Because lens of the present invention comprise the first lenticular lens elements and the second lenticular lens elements, the two be respectively used to produce outgoing in a first direction with second direction on light distribution, therefore, save lens subassembly of the prior art and jointly determined the design of the light distribution of lens, but only by lens itself, just determined the light distribution through lens.Therefore,, in the situation that need to meet different beam angles, only change lens.In addition, because the first lenticular lens elements and the second lenticular lens elements are responsible for respectively the light distribution in first direction and second direction, therefore, provide certain design freedom, by designing respectively the first lenticular lens elements and the second lenticular lens elements, just can realize different beam angles.In addition, because lens itself have just determined light distribution, therefore, in the time of other beam angle of needs, only need lens to change just passable, therefore easy for installation, be convenient to realize different beam angle demands.
According to a preferred version of the present invention, wherein said first direction and second direction are perpendicular to one another.In this kind of situation, be particularly useful for oval hot spot and be similar to rectangular light spot.
According to further preferred version of the present invention, described outgoing beam forms oval-shaped hot spot, and wherein said first direction is oval short-axis direction, and described second direction is oval long axis direction.Thereby in the situation that forming oval hot spot, can obtain different elliptical beams.
According to a preferred version of the present invention, described the first lenticular lens elements and/or the second lenticular lens elements are projection or the hole in described carrier being formed on described carrier.Thereby be convenient to lens working and low cost of manufacture.
Preferably, described the first lenticular lens elements has spherical curved surface.This spherical curved surface provides the light distribution of oval short-axis direction.
Preferably, described a plurality of the first lenticular lens elements are distributed in respectively in a plurality of row parallel to each other, and wherein said row comprises at least one first lenticular lens elements.Thereby reduced light loss as far as possible, realized the effect stack of the light distribution of a plurality of the first lenticule unit.
Preferably, the base of described spherical crown has hexagonal outline, and each hexagonal outline of described a plurality of the first lenticular lens elements is adjacent to each other to limit class honey-comb shape array.Thereby reduced light loss as far as possible, and do not affected realized light distribution effect simultaneously.
According to a preferred version of the present invention, described the second lenticular lens elements has cylinder.This cylinder provides the light distribution of oval long axis direction.
Preferably, a plurality of the second lenticular lens elements are formed in a plurality of row parallel to each other, and wherein each row comprises second lenticular lens elements.Be that each second lenticular lens elements forms a row, a plurality of the second lenticular lens elements have formed a plurality of row.Thereby reduced light loss as far as possible, realized the effect stack of the light distribution of a plurality of the second lenticular lens elements unit.
Preferably, the end of described cylinder has fillet surface profile, and the radius of described fillet surface profile is different from the radius of described cylinder.Thereby reduced light loss as far as possible, and do not affected realized light distribution effect simultaneously.
Preferably, the radius of described cylinder is that the radius of 0.20mm and the fillet surface profile that connects adjacent two cylinders is 0.03mm.The size of above-mentioned cylinder is the preferred value that realizes good light distribution and lose compared with low light.
Preferably, described the first side is to deviate from a side of described light source and described the second side is the side in the face of described light source.Thereby realizing in oval photodistributed situation, be especially favourable.
Preferably, described carrier is annular, and described the first lenticule is distributed in respectively in a plurality of row that are parallel to diameter, and described the second lenticular lens elements is distributed in respectively in a plurality of row that are parallel to diameter.
Preferably, described carrier, the first microlens array and the second lenticular lens elements array are integrally formed.Thereby be convenient to manufacture and moulding.These lens can by plastics, for example PC or glass be made.
According to the invention still further relates to a kind of LED light emitting module, it is characterized in that, comprise the lens that possess above-mentioned feature.
According to a preferred version of the present invention, also comprise luminescence component and collimation optics, before wherein said collimation optics is arranged on the described lens as outer cover lens in light path.This collimation optics is collimation lens, and the lens that possess above-mentioned feature are outer cover lens.Like this, collimation lens carries out pre-adjustment to light, and outer cover lens determine that final light distributes.
Preferably, also comprise heat sinkly, describedly heat sinkly in the first side, carry described luminescence component, and comprise bearing, be used for holding described outer cover lens, described collimation optics and described seat supports are in described the first side, and described bearing upwards surrounds described collimation optics in week.Realized like this compact layout of LED light-emitting device.
Preferably, described collimation optics is circular light beam by the optical alignment from described luminescence component.Thereby through the outer cover lens of the above-mentioned feature of secondary optics element-possess, readjusting the light that light is distributed as after other the adjustment such as ellipse or rectangle distributes.
According to lens of the present invention and LED light emitting module, have and the various advantages such as be convenient to meet different photodistributed demands, easy for installation, design freedom is high.
Should be appreciated that, above generality is described and the following detailed description is all enumerated and illustrative, and object is for the further instruction that the invention provides to claimed.
Accompanying drawing explanation
Accompanying drawing forms the part of this description, for helping further to understand the present invention.These accompanying drawings illustrate embodiments of the invention, and are used for illustrating principle of the present invention together with description.Identical parts represent with identical label in the accompanying drawings.Shown in figure:
Fig. 1 is according to the explosive view of LED light emitting module of the present invention;
Fig. 2 is according to the stereogram of the first embodiment of lens of the present invention, wherein shows the first lenticular lens elements;
Fig. 3 is according to the sectional view of the first lenticular lens elements obtaining along B-B cross section of Fig. 2;
Fig. 4 is according to the stereogram of the first embodiment of lens of the present invention, wherein shows the second lenticular lens elements;
Fig. 5 is according to the sectional view of the lens that obtain along B-B cross section of Fig. 2;
Fig. 6 is according to the enlarged drawing in the cross section of the second lenticular lens elements of Fig. 5;
Fig. 7 is according to the index path of LED light emitting module of the present invention;
Fig. 8 is the amplification index path at process outer cover lens according to the LED light emitting module of Fig. 7.
The specific embodiment
In being discussed in more detail below, with reference to the accompanying drawing that forms the part of this description, wherein, in the mode of illustration, showing and can implement specific embodiments of the invention.About figure, such as " top ", " end ", 'fornt', 'back', " leading ", " trailing " directional terms, with reference to the direction of described accompanying drawing, use.Because the assembly of the embodiment of the present invention can be placed on many different directions, thus direction term only for explanation, and without any restriction the meaning.It should be understood that and can use other embodiment, and can carry out structure or logical changes under the prerequisite that does not deviate from scope of the present invention.So, describes in detail and should not be understood to the restrictive meaning below, and the present invention is defined by the appended claims.
Fig. 1 is according to the explosive view of LED light emitting module of the present invention.LED light emitting module is particularly useful for track lamp and shop lamp.As shown in Figure 1, LED light emitting module 100 comprises: as the lens 1 of outer cover lens; And bearing 2, outer cover lens can be installed in this bearing 2; And collimation optics 3; Luminescence component 5, this luminescence component comprises circuit board 51 and is arranged on the LED chip 52 on circuit board; And heat sink 4, this is heat sink uses as shell, and this is heat sink carries described luminescence component 5 in a side; For the mount pad 53 of LED light emitting module, this is heat sink 4 is installed on mount pad at opposite side.Heat sink 4 also have a plurality of fin 41 on periphery, realize the efficiently radiates heat for LED light source.
From light path, before collimation optics 3 is arranged on the described lens as outer cover lens in light path, light beam is carried out pre-adjustment and finally determines that through the outgoing of outer cover lens and by outer cover lens final light distributes by collimation optics.Collimation optics 3 has leg, is fixed to heat sink 4 or circuit board 51, thereby receives the light of luminescent module 5.Outer cover lens can from a side be installed to bearing 2 and bearing 2 from be installed to heat sink 4 or circuit board 51 in opposite side, and upwards surround collimation optics 3 in week.In this embodiment, above-mentioned heat sink 4, circuit board 51, collimation optics 3 and outer cover lens all form circle, thereby form cartridge type lamp.
Lens 1 in the LED light emitting module of Fig. 1 according to the present invention unlike the prior art.
Fig. 2 is according to the stereogram of the first embodiment of lens 1 of the present invention, wherein shows the first lenticular lens elements.Fig. 2 shows the side away from luminescence component 5 of lens 1, and wherein these lens 1 comprise: carrier 15; Be arranged on a plurality of first lenticular lens elements 13 of the first side 11 of described carrier 15; Be arranged on a plurality of second lenticular lens elements 14 of second side 12 relative with described the first side 11 of described carrier 15.The first lenticular lens elements 13 is provided for producing irradiating light beam light distribution in a first direction, and described the second lenticular lens elements 14 is provided for producing the light distribution of irradiating light beam in second direction, and wherein said first direction is different with second direction.In this specific embodiment, in order to produce oval hot spot, wherein first direction and second direction are perpendicular to one another, and wherein first direction is oval short-axis direction, and described second direction is oval long axis direction.
As can be seen from Figure 2, a plurality of the first lenticular lens elements 13 are formed in the projection on carrier 15.From top view, wherein each first lenticular lens elements and the first lenticular lens elements are around adjacent to each other, and have formed class honey-comb shape array.The first lenticular lens elements is distributed in respectively in a plurality of row parallel to each other, and every a line comprises at least one first lenticular lens elements.As shown in the figure, the capable diametric(al) that is parallel to respectively carrier 15 of these first lenticules.In Fig. 2, can see the edge contour of the second lenticular lens elements 14 of the second side 12 that is positioned at carrier 15.
Fig. 3 is according to the sectional view of the first lenticular lens elements 13 obtaining along B-B cross section of Fig. 2.The first independent lenticular lens elements has spherical curved surface, that is to say, this spherical Surface forming the optical surface of the first lenticular lens elements.And the bottom profile of spherical crown can be designed as hexagon, thereby be convenient to realize closely with other the first lenticular lens elements 13, gapless adjacency and coordinating.Fig. 4 is according to the stereogram of the first embodiment of lens of the present invention, wherein shows the second lenticular lens elements 14.A plurality of the second lenticular lens elements 14 are formed in the projection on carrier 15.The first lenticular lens elements 13 and the second lenticular lens elements 14 be the opposite direction of projection each other.From top view, the second lenticular lens elements 14 is formed in a plurality of row parallel to each other, and wherein each row is second lenticular lens elements 14.Wherein each second lens element 14 and the second lens element 14 are around adjacent to each other, and have formed a plurality of linear arraies.
As shown in Figure 4, these the second lenticular lens elements row are parallel to respectively the diametric(al) of carrier 15.In Fig. 2, can see the edge contour of the first lenticule 13 of the first side 11 that is positioned at carrier 15.
Fig. 5 is according to the sectional view of the lens that obtain along B-B cross section of Fig. 2.Carrier 15, at a lateral process, has formed the first lenticular lens elements 13.From cross section, owing to arranging in a plurality of row of the first lenticular lens elements 13 on being parallel to the direction of diameter, the first lenticular quantity difference that each row is included, therefore, at cross section, whole cross section is not the cross section profile that keeps constant.On whole cross section, intercepted the different portions section of the first different lenticular lens elements 13 in each row.Carrier 15, in the opposite side projection relative with a side, has formed the second lenticular lens elements 14.The second lenticular lens elements 14 self comprises the optical surface that forms the cylinder that is similar to column, is semicylinder in this embodiment.These second lenticular lens elements 14 have formed a row that is parallel to diameter, and at cross section, whole cross section has kept constant cross section profile substantially.Be on whole cross section, to have intercepted each the second lenticular lens elements 14, obtained a plurality of circular arcs adjacent one another are.
Fig. 6 is according to the enlarged drawing in the cross section of the second lenticular lens elements of Fig. 5.As can be seen from the figure, be similar to the first lenticular lens elements design, the second lenticular lens elements has column-shape curved surface, and this column-shape curved surface is optical surface.And the bottom profile of column-shape curved surface in other words the end of cylinder for the ease of realizing closely with other the second lenticular lens elements 14, gapless adjacency and coordinating, be designed to another radian changeover portion.In this specific embodiment, the radius of described cylinder is that the radius of 0.20mm and the curved surface that connects adjacent two cylinders is 0.03mm.
Fig. 7 is according to the index path of LED light emitting module of the present invention.Fig. 8 is the amplification index path at process outer cover lens according to the LED light emitting module of Fig. 7.
As Fig. 7, shown in 8, from the light of the light source 52 of described luminescence component 5, being collimated optical element 3 collimations is circular light beam, and further directive according to the lens 1 as outer cover lens of the present invention.First side at the first lenticular lens elements 13 places is to deviate from a side of described light source 52 and second side at the second lenticular lens elements 14 places for the side in the face of light source 52.Light is first through the second lenticular lens elements 14 and further through the first lenticular lens elements 13.The first lenticular lens elements 13 and the second lenticular lens elements 14 be respectively used to produce outgoing in a first direction with second direction on light distribution.In this embodiment, described outgoing beam forms oval-shaped hot spot, and wherein said first direction is oval short-axis direction, and described second direction is oval long axis direction.As seen from the figure, the second lenticular lens elements 14 the light distribution at long axis direction is provided, and the first lenticular lens elements 13 provides the light distribution at short-axis direction.
The oval hot spot of usining in the present embodiment illustrated according to lens of the present invention as example, yet, also can consider that other for example rectangular light spot carrys out design consideration lens of the present invention.Now the first lenticular lens elements and the second lenticular lens elements are responsible for respectively the light distribution in first direction and second direction, and the different designs according to the first lenticular lens elements and the second lenticular lens elements, just can realize different light beams.
Because lens itself according to the present invention have just determined light distribution, therefore, easy for installation, be convenient to realize different light beam demands, and certain design freedom is provided.
In addition, although only with respect to a kind of special characteristic or the aspect that discloses embodiments of the invention in numerous embodiments, but as any given or application-specific is desired, combination can be carried out with one or more further features or the aspect of other embodiment in these features or aspect.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Label list
100LED light emitting module
1 lens
11 first sides
12 second sides
13 first lenticular lens elements
14 second lenticular lens elements
15 carriers
2 bearings
3 collimation optics
4 is heat sink
41 fin
5 luminescence components
51 circuit boards
52LED chip
53 mount pads
Claims (17)
1. the lens for light source (1), is characterized in that, comprising: carrier (15); Be arranged on a plurality of first lenticular lens elements (13) of the first side (11) on described carrier (15); Be arranged on a plurality of the second lenticular lens elements (14) in second side (12) relative with described the first side (11) of described carrier (15), described the first lenticular lens elements (13) is provided for producing irradiating light beam light distribution in a first direction, and described the second lenticular lens elements (14) is provided for producing the light distribution of irradiating light beam in second direction, and wherein said first direction is different with second direction.
2. lens according to claim 1 (1), is characterized in that, wherein said first direction and second direction are perpendicular to one another.
3. lens according to claim 2 (1), is characterized in that, described outgoing beam forms oval-shaped hot spot, and wherein said first direction is oval short-axis direction, and described second direction is oval long axis direction.
4. according to the lens (1) described in any one in claim 1-3, it is characterized in that, described the first lenticular lens elements (13) and/or the second lenticular lens elements (14) are for being formed on projection or the hole in described carrier (15) on described carrier (15).
5. lens according to claim 4 (1), is characterized in that, described the first lenticular lens elements (13) has spherical curved surface.
6. lens according to claim 5 (1), is characterized in that, described a plurality of the first lenticular lens elements (13) are distributed in respectively in a plurality of row parallel to each other, and wherein described in each, row comprises at least one first lenticular lens elements (13).
7. lens according to claim 5 (1), is characterized in that, the base of described spherical crown has hexagonal outline, and each hexagonal outline of described a plurality of the first lenticular lens elements (13) is adjacent to each other to limit class honey-comb shape array.
8. lens according to claim 4 (1), is characterized in that, described the second lenticular lens elements (14) has cylinder.
9. lens according to claim 8 (1), is characterized in that, a plurality of the second lenticular lens elements (14) are formed in a plurality of row parallel to each other, and wherein each row comprises second lenticular lens elements (14).
10. lens according to claim 8 (1), is characterized in that, the end of described cylinder has fillet surface profile, and the radius of described fillet surface profile is different from the radius of described cylinder.
11. according to the lens (1) described in any one in claim 1-3, it is characterized in that, described the first side (11) is the side in the face of described light source for deviating from a side and described second side (12) of described light source.
12. according to the lens (1) described in any one in claim 1-3, it is characterized in that, described carrier (15) is annular, described the first lenticular lens elements (13) is distributed in respectively in the row of a plurality of diameters that are parallel to described carrier (15), and described the second lenticular lens elements (14) is distributed in respectively in the row of a plurality of diameters that are parallel to described carrier (15).
13. according to the lens (1) described in any one in claim 1-3, it is characterized in that, described carrier (15), the first lenticular lens elements (13) and the second lenticular lens elements (14) are integrally formed.
14. 1 kinds of LED light emitting modules (100), is characterized in that, comprise according to the lens (1) described in any one in claim 1-13.
15. LED light emitting modules according to claim 14 (100), is characterized in that, also comprise luminescence component (5) and collimation optics, and wherein said collimation optics is arranged on as the described lens (1) of outer cover lens before in light path.
16. LED light emitting modules according to claim 15 (100), it is characterized in that, also comprise heat sink (4), described heat sink (4) carry described luminescence component (5) in a side, and comprise bearing (2), be used for holding described outer cover lens, described collimation optics and described bearing (2) are supported on this side, and described bearing (2) upwards surrounds described collimation optics in week.
17. LED light emitting modules according to claim 15 (100), is characterized in that, described collimation optics is circular light beam by the optical alignment from described luminescence component (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380155.3A CN103712158A (en) | 2012-10-09 | 2012-10-09 | Lens and led luminous module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380155.3A CN103712158A (en) | 2012-10-09 | 2012-10-09 | Lens and led luminous module |
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| Publication Number | Publication Date |
|---|---|
| CN103712158A true CN103712158A (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210380155.3A Pending CN103712158A (en) | 2012-10-09 | 2012-10-09 | Lens and led luminous module |
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| CN (1) | CN103712158A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613707A (en) * | 2019-01-03 | 2019-04-12 | 海特光电有限责任公司 | A kind of beam shaping mirror and semiconductor laser light compensating apparatus |
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| CN201072068Y (en) * | 2007-07-05 | 2008-06-11 | 四川新力光源有限公司 | Dispersion lens used for LED light source lamp |
| TW201018828A (en) * | 2008-07-24 | 2010-05-16 | Koninkl Philips Electronics Nv | Luminaire device with several lighting units |
| US20110188242A1 (en) * | 2007-11-23 | 2011-08-04 | Osram Opto Semiconductors Gmbh | Optical Component and Illumination Device |
| CN102681319A (en) * | 2011-03-08 | 2012-09-19 | 精工爱普生株式会社 | Illumination device and projector |
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2012
- 2012-10-09 CN CN201210380155.3A patent/CN103712158A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201072068Y (en) * | 2007-07-05 | 2008-06-11 | 四川新力光源有限公司 | Dispersion lens used for LED light source lamp |
| US20110188242A1 (en) * | 2007-11-23 | 2011-08-04 | Osram Opto Semiconductors Gmbh | Optical Component and Illumination Device |
| TW201018828A (en) * | 2008-07-24 | 2010-05-16 | Koninkl Philips Electronics Nv | Luminaire device with several lighting units |
| CN102681319A (en) * | 2011-03-08 | 2012-09-19 | 精工爱普生株式会社 | Illumination device and projector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109613707A (en) * | 2019-01-03 | 2019-04-12 | 海特光电有限责任公司 | A kind of beam shaping mirror and semiconductor laser light compensating apparatus |
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