CN201680288U - Area light source lens of LED point light source - Google Patents
Area light source lens of LED point light source Download PDFInfo
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- CN201680288U CN201680288U CN200920351161XU CN200920351161U CN201680288U CN 201680288 U CN201680288 U CN 201680288U CN 200920351161X U CN200920351161X U CN 200920351161XU CN 200920351161 U CN200920351161 U CN 200920351161U CN 201680288 U CN201680288 U CN 201680288U
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Abstract
The utility model provides an area light source lens which can convert an LED point light source into an area light source. An embodiment of the area light source lens is as follows: the area light source lens comprises an inclined bottom part and an inclined top part; an inverted cone-shaped light reflection concave part is formed at the top part in the lens; a light source concave part is formed at the bottom part in the lens, and the light source concave part corresponds to the light reflection concave part; and mesh points are formed at the bottom of the area light source lens, and a reflecting layer is further formed. The area light source lens has the following functions: main components in light emitted from an LED light source enter into the area light source lens from the bottom part and are radiated to the light reflection concave part, and the side surface of the light reflection concave part can change the direction of the main components in the light, spread the main components along the direction which is almost parallel to the light-emitting surface of the area light source lens, and lead the main components in the light to be reflected by the mesh points on the bottom surface of the area light source lens and the reflecting layer and be further ejected from the surface at the top part of the area light source lens, thereby forming the area light source in the same size of the area light source lens rather then the point light source in the same size of the LED-packaged light-emitting surface.
Description
Technical field
The utility model discloses and a kind of the LED spot light to be transformed into the lens of area source, belongs to technical field of semiconductor illumination.
Background technology
LED has been widely used in special lighting and general lighting field, and therefore the spot light characteristic that LED has, in a lot of the application, need be transformed into area source to the LED spot light.One of method is that a plurality of led light sources are arranged on a plane.But, when said method being applied to some field, particularly for the LED spot light of (1) lesser amt; (2) need the zone of irradiation nearer from the LED spot light, the spot light characteristic of LED is still very outstanding, can't well satisfy the demand.
A kind ofly the LED spot light is transformed into the area source lens devices is suggested.
The utility model discloses a kind of different lens that the LED spot light are transformed into area source.
The utility model content
The utility model provides a kind of lens, can be transformed into area source to the LED spot light, even also like this for single led spot light, abbreviates the area source lens as.The structure of an embodiment of area source lens is as follows, and a transparent substance has the top of inclined bottom and inclination, and the function at the top of inclined bottom and inclination is more effectively light to be reflected the area source lens; Form the light reflective recess of a reverse taper shape at the top of the inside of area source lens, the function of light reflective recess is the direction of propagation that changes light; A light source recess is formed on the bottom of portion within it, and the function of light source recess is that the LED spot light is set therein; Wherein, light source recess corresponding with the light reflective recess (preferred embodiment: the summit of light reflective recess is directly over the center of light source recess); Form the site on the inclined bottom, form a reflecting layer then; Form concaveconvex structure on the top that tilts; Form reflectance coating on the side of area source lens.The function of area source lens is as follows, the main component of the light that led light source sends is from bottom entering surface light lens, shine the light reflective recess, the side of light reflective recess changes the direction of propagation of the main component of light, make it along the direction propagation almost parallel with the light output surface (surface at top) of area source lens, site on the bottom surface of quilt cover light lens and reflectance coating reflection, penetrate from the light output surface of area source lens, thereby form an area source onesize, and no longer be the onesize spot light of light output surface that encapsulates with LED with the area source lens.
Area source lens of the present utility model, wherein,
(A) setting of area source lens is to select from one group is provided with, the setting of this group comprises, (1) transparent area source lens, (2) the inside doping light diffusing particles (light-scatteringparticle) of area source lens, (3) top coating one deck light diffusing particles (diffusionparticle) of area source lens, the inside doping light diffusing particles of (4) area source lens and top coating one deck light diffusing particles.
(B) structure on the surface at the top of area source lens is to select from one group of structure, and this group structure comprises that the surface at the top of (1) area source lens (except the light reflective recess) is called for short planar top in same plane; (2) edge at the top of area source lens is lower than the bottom of the light reflective recess at top, is called for short the top of inclination.
(C) structure on the surface of the bottom of area source lens is to select from one group of structure, and this group structure comprises that the surface of the bottom of (1) area source lens (except the light source recess) is called for short planar base in same plane; (2) structure with the surface corresponding mid portion of light reflective recess the bottom of area source lens is the plane, led light source is set below this plane, the edge of the bottom of area source lens be higher than the bottom with the corresponding mid portion of light reflective recess, abbreviate inclined bottom as; (3) bottom of area source lens has the light source recess with the corresponding mid portion of light reflective recess, and the light source recess comprises column type, polygon prism type, part ball-shape; (4) combination of said structure, for example, the combination of structure (1) and structure (3), the combination of structure (2) and structure (3).
(D) setting on the surface at the top of area source lens (comprising the top of planar top and inclination) is to select from one group is provided with, and the setting of this group comprises the surface that (1) is smooth; (2) form concaveconvex structure on the surface, concaveconvex structure comprises, alligatoring structure, photon crystal structure; (3) form fluorescent powder membrane on the surface; (4) combination of above-mentioned setting for example, is provided with the combination of (2) and setting (3).
(E) setting on the surface of the bottom of area source lens (comprising planar base and inclined bottom) is to select from one group is provided with, and the setting of this group comprises the surface that (1) is smooth; (2) form the site on the surface; (3) form concaveconvex structure on the surface, concaveconvex structure comprises, alligatoring structure, photon crystal structure; (4) form fluorescent powder membrane on the surface; (5) form reflectance coating on the surface; (6) combination of above-mentioned setting, for example, the combination of (2) and setting (4) is set, the combination of setting (3) and setting (4) is provided with the combination of (2) and setting (5), and the combination of (3) and setting (5) is set, the combination of (4) and setting (5) is set, the combination of setting (2), setting (4) and setting (5) is provided with the combination of (3), setting (4) and setting (5), etc.
(F) profile on the surface at the top of area source lens (comprising the top of planar top and inclination) is to select from one group of shape, and this group shape comprises, circular, polygon, and polygon comprises equilateral triangle, square, regular hexagon, etc.
(G) setting of the side of area source lens is to select from one group is provided with, and the setting of this group comprises, forms reflectance coating on the surface of (1) side, bonding one reflectance coating on the surface of (2) side.
(H) as funnel, the bottom surface of light reflective recess has only profile.The shape of the profile of the bottom surface of light reflective recess is to select from one group of shape, and this group shape comprises, circular, polygon, and polygon comprises equilateral triangle, square, regular hexagon, etc.
(I) shape of the side in the cross section of light reflective recess is to select from one group of shape, and this group shape comprises, straight line, curve, broken line.
(J) setting of light reflective recess is to select from one group is provided with, and the setting of this group comprises, forms reflectance coating on the side of (1) light reflective recess, non-filler in (2) light reflective recess, and reverberation is filled at the top of (3) light reflective recess.
The setting of any one area source lens in above-mentioned (A), (B) structure on the surface at the top of any one area source lens in, (C) structure on the surface of the bottom of any one area source lens in, (D) top of any one area source lens (comprises in, the setting on the surface top of planar top and inclination), (E) bottom of any one area source lens (comprises in, planar base and inclined bottom) the setting on surface, the profile on the surface at the top of any one area source lens (F) (comprising the top of planar top and inclination), (G) setting of the side of any one area source lens in, (H) shape of the profile of the bottom of any one light reflective recess in, (I) shape of the side in the cross section of any one light reflective recess in, (J) setting of any one light reflective recess is combined and is promptly constituted an embodiment of the present utility model in.
The purpose of this utility model and the effect that can reach are as follows:
(1) the area source lens that provide of the utility model convert the spot light of single led encapsulation to area source, more effectively light are reflected the area source lens.
(2) the area source lens that provide of the utility model are easy to produce in batches.
The utility model and its feature and benefit will better be showed in the following detailed description.
Description of drawings
The top view of an embodiment of Fig. 1 a display surface light lens.
The top view of an embodiment of Fig. 1 b display surface light lens.
The top view of an embodiment of Fig. 1 c display surface light lens.
The top view of an embodiment of Fig. 1 d display surface light lens.
The top view of an embodiment of Fig. 1 e display surface light lens.
The top view of an embodiment of Fig. 1 f display surface light lens.
The sectional view of an embodiment of Fig. 2 a display surface light lens.
The sectional view of an embodiment of Fig. 2 b display surface light lens.
The sectional view of an embodiment of Fig. 2 c display surface light lens.
The sectional view of an embodiment of Fig. 2 d display surface light lens.
The sectional view of an embodiment of Fig. 2 e display surface light lens.
The cross section of an embodiment of Fig. 3 a display surface light lens.
The sectional view of an embodiment of Fig. 3 b display surface light lens.
The sectional view of an embodiment of Fig. 3 c display surface light lens.
The sectional view of an embodiment of Fig. 3 d display surface light lens.
The sectional view of an embodiment of Fig. 3 e display surface light lens.
The sectional view of an embodiment of Fig. 3 f display surface light lens.
Specific embodiment
Though embodiment of the present utility model will be described below, following description just illustrates principle of the present utility model, rather than limitation the utility model is in the description of following embodiment.
Attention: following all embodiment that are applicable to area source lens of the present utility model:
(1) ratio of each several part is not represented the true ratio of the each several part of embodiment among each figure.
(2) form the light reflective recess at the top of the inside of area source lens, the side of light reflective recess the bottom from the area source lens is entered and the main component of the light at directive top in the side of the inside of area source lens spigot surface light lens, promptly, after the incident light entering surface light lens, penetrate on the side of light reflective recess, under its effect, the main component of light is in the direction propagation almost parallel with the light output surface of area source lens of the edge, inside of area source lens, by the top of the site of bottom and reflectance coating direct light source lens and ejaculation therefrom.
(3) structure on the surface at the top of area source lens is to select from one group of structure, and this group structure comprises that (a) surface at the top of area source lens (except the light reflective recess) is called for short planar top in same plane; (b) edge at the top of area source lens is lower than the mid portion at top, is called for short the top of inclination.
(4) structure on the surface of the bottom of area source lens is to select from one group of structure, and this group structure comprises, (a) surface of the bottom of area source lens (except the light source recess) in same plane (abbreviation planar base); (b) structure with the surface corresponding mid portion of light reflective recess the bottom of area source lens is the plane, led light source is set below this plane, the edge of the bottom of area source lens be higher than the bottom with the corresponding mid portion of light reflective recess, abbreviate inclined bottom as; (c) bottom of area source lens has the light source recess with the corresponding mid portion of light reflective recess, and the light source recess comprises column type, polygon prism type (comprising cubic build), part ball-shape; (d) combination of said structure, for example, the combination of structure (a) and structure (c), the combination of structure (b) and structure (c).
(5) setting on the surface at the top of area source lens (comprising the top of planar top and inclination) is to select from one group is provided with, and the setting of this group comprises, (a) smooth surface; (b) form concaveconvex structure on the surface, concaveconvex structure comprises, alligatoring structure, photon crystal structure; (c) form fluorescent powder membrane on the surface; (d) combination of above-mentioned setting for example, is provided with the combination of (b) and setting (c).
(6) setting on the surface of the bottom of area source lens (comprising planar base and inclined bottom) is to select from one group is provided with, and the setting of this group comprises, (a) smooth surface; (b) form the site on the surface;
(c) form concaveconvex structure on the surface, concaveconvex structure comprises, alligatoring structure, photon crystal structure;
(d) form fluorescent powder membrane on the surface; (e) form reflectance coating on the surface; (f) combination of above-mentioned setting, for example, the combination of (b) and setting (d) is set, the combination of setting (c) and setting (d) is provided with the combination of (b) and setting (e), and the combination of (c) and setting (e) is set, the combination of (d) and setting (e) is set, the combination of setting (b), setting (d) and setting (e) is provided with the combination of (c), setting (d) and setting (e), etc.
(7) profile on the surface at the top of area source lens (comprising the top of planar top and inclination) is to select from one group of shape, and this group shape comprises, (a) circle, and (b) polygon, polygon comprise equilateral triangle, square, regular hexagon, etc.
(8) setting of the side of area source lens is to select from one group is provided with, and the setting of this group comprises, (a) forms reflectance coating on the surface of side, (b) bonding one reflectance coating on the surface of side.
(9) setting of area source lens is to select from one group is provided with, and the setting of this group comprises: (a) transparent area source lens; (b) the inside doping light diffusing particles of area source lens; (c) top coating one deck light diffusing particles of area source lens; (d) the inside doping light diffusing particles of area source lens and top coating one deck light diffusing particles.The difference setting of area source lens has determined the area source lens to have two types, when light lens adopts being provided with of (a), does not have diffusion function face to face.When light lens adopts (b), (c) and being provided with (d), has diffusion function (also can be referred to as: diffusion type-area source lens, to show difference) face to face.
(10) light is subjected to scattering and reflex simultaneously when the internal communication of diffusion type-area source lens, and penetrates from the surface at the top of area source lens.
(11) the suitable light scattering that diffusion type-area source lens are set is than (optical diffusionratio), light transmission (total optical transmission), the feature of light reflective recess and the shape and the density of distribution and site, to reach the brightness uniformity of emergent light.For example, the light scattering ratio may be selected between 5% to 90%, and light transmission may be selected between 40% to 95%.
(12) feature of the suitable light reflective recess that area source lens (non-diffusion type-area source lens) are set and the shape and the density of distribution and site are to reach the brightness uniformity of emergent light.
(13) thickness of area source lens depends on the dimension of the light output surface of LED encapsulation.
(14) the light reflective recess be shaped as reverse taper, as funnel, the bottom surface of light reflective recess has only profile; The reverse taper shape comprises: (a) inverted cone shape; (b) inverted pyramid shape.
(15) height of light reflective recess is less than or equal to the thickness (Fig. 2 shows the thickness of the height of light reflective recess less than the area source lens, equals the situation of the thickness of area source lens for the height of light reflective recess, shows in the drawings) of area source lens.
(16) (for example, for rounded bottom surface, its minimum dimension is its diameter to the minimum dimension of the profile of the bottom surface of light reflective recess; For rectangular bottom surface, its minimum dimension is the length of side of its minor face.) (for example, for circular light output surface, its maximum dimension is its diameter more than or equal to the maximum dimension of the light output surface of LED encapsulation; For the rectangle light output surface, its maximum dimension is its diagonal).
(17) shape of the profile of the bottom surface of light reflective recess is to select from one group of shape, and this group shape includes, but are not limited to: (a) circle; (b) polygon, polygon comprise equilateral triangle, square, regular hexagon, etc.
(18) shape of the side in the cross section of light reflective recess is to select from one group of shape, and this group shape includes, but are not limited to: (a) straight line; (b) curve; (c) broken line; The light at directive top becomes the light of the side of directive area source lens at the inner transformation of area source lens as long as the side of light reflective recess can enter most bottom from the area source lens, promptly, as long as make after the main component entering surface light lens of incident light, the side of light reflective recess has changed the direction of propagation of the main component of light, makes the direction propagation almost parallel with the light output surface of area source lens of its edge in the area source lens.
(19) setting of light reflective recess is to select from one group is provided with, and the setting of this group comprises: (a) non-filler in the light reflective recess; (b) form one deck reflectance coating on the light reflective recess side; (c) light reflective recess top is provided with a reflecting object identical shaped with recess.
(20) cooperate the LED encapsulation of adopting, the height of selective light reflective recess and the size of bottom surface, make the side of light reflective recess change the direction of propagation of the main component of light, make the direction propagation almost parallel of its edge in the area source lens with the light output surface of area source lens,, make that the bright dipping of area source lens is even.
(21) angle between the surface on the bottom of top of Qing Xieing and area source lens and the corresponding mid portion of light reflective recess is 0.1 ° to 20 °, and the angle between the surface on the bottom of inclined bottom and area source lens and the corresponding mid portion of light reflective recess is 0.1 ° to 20 °.
The top view of the difform embodiment of Fig. 1 display surface light lens.
The top view of an embodiment of Fig. 1 a display surface light lens.Area source lens 101 have cylindrical shape, and the profile on the surface at its top is circular.The light reflective recess 102 of inverted cone (funnel) shape is formed on the top of the inside of area source lens 101, and the bottom surface of light reflective recess 102 has only profile.The structure on the surface of the bottom surface of area source lens 101 is light source recesses 103 that cylindrical shape is formed on the bottom of portion within it.The summit of light reflective recess 102 is directly over the center of light source recess 103.
The top view of an embodiment of Fig. 1 b display surface light lens.The light reflective recess 102 of inverted cone (funnel) shape is formed on the top of the inside of the area source lens 101 of cylindrical shape, and the structure on the surface of the bottom surface of area source lens 101 is light source recesses 103 that the tetragonal body shape is formed on the bottom of portion within it.The summit of light reflective recess 102 is directly over the center of light source recess 103.
The top view of an embodiment of Fig. 1 c display surface light lens.The light reflective recess 102 of inverted cone (funnel) shape is formed on the top of the inside of the area source lens 101 of tetragonal body shape, and the structure on the surface of the bottom surface of area source lens 101 is light source recesses 103 that cylindrical shape is formed on the bottom of portion within it.The summit of light reflective recess 102 is directly over the center of light source recess 103.
The top view of an embodiment of Fig. 1 d display surface light lens.The light reflective recess 102 of the body of falling the rectangular pyramid (funnel) shape is formed on the top of the inside of the area source lens 101 of tetragonal body shape, and the structure on the surface of the bottom surface of area source lens 101 is light source recesses 103 that the tetragonal body shape is formed on the bottom of portion within it.The summit of light reflective recess 102 is directly over the center of light source recess 103.
The top view of an embodiment of Fig. 1 e display surface light lens.Area source lens 101 have the hexagonal prism shape, and the profile on the surface at its top is a hexagon.The light reflective recess 102 of the shape of falling the hexagonal pyramid is formed on the top of the inside of area source lens 101.The surface of the bottom surface of area source lens 101 is planes.
The top view of an embodiment of Fig. 1 f display surface light lens.Area source lens 101 have three limit shapes, and the profile on the surface at its top is a triangle.The light reflective recess 102 of the shape of falling the triangular pyramid is formed on the top of the inside of area source lens 101, and the surface of the bottom surface of area source lens 101 is planes.
The sectional view of the embodiment of the different structure of Fig. 2 display surface light lens includes, but not limited to the A-A cross section of Fig. 1.
Notice that the profile on the surface at the top of the area source lens that Fig. 2 shows can be (1) circle; (2) polygon, polygon comprise equilateral triangle, square, regular hexagon, etc.As funnel, the bottom surface of light reflective recess has only profile.The shape of the profile of the bottom surface of light reflective recess is to select from one group of shape, and this group shape comprises: (1) circle, and (2) polygon, polygon comprises equilateral triangle, square, regular hexagon.
The sectional view of an embodiment of Fig. 2 a display surface light lens.The light reflective recess 202 of reverse taper shape is formed on the top of the inside of area source lens 201.Area source lens 201 have top 201t, side, inclined bottom 204 and surface 205.The structure of the bottom of area source lens 201 is as follows, and the structure with surfaces 205 light reflective recess 202 corresponding mid portions the bottom of area source lens 201 is the plane, places led light source below surface 205; The edge of the bottom 204 of area source lens 201 is higher than the surface 205 of the mid portion of bottom, and being called for short bottom 204 is inclined bottom 204.
The sectional view of an embodiment of Fig. 2 b display surface light lens.The embodiment of the area source lens that Fig. 2 b shows and the embodiment of Fig. 2 a display surface light lens are basic identical, its difference is: the structure with surfaces light reflective recess 202 corresponding mid portions the bottom of the area source lens 201 that Fig. 2 b shows is: have light source recess 203, light source recess 203 be shaped as column type or polygon prism type.
The sectional view of an embodiment of Fig. 2 c display surface light lens.The embodiment of the area source lens that Fig. 2 c shows and the embodiment of Fig. 2 b display surface light lens are basic identical, its difference is: the structure with surfaces light reflective recess 202 corresponding mid portions the bottom of the area source lens 201 that Fig. 2 c shows is: have light source recess 206, light source recess 206 be shaped as the part ball-shape.
The sectional view of an embodiment of Fig. 2 d display surface light lens.The light reflective recess 202 of reverse taper shape is formed on the top of the inside of area source lens 201.The structure on the surface 208 of the bottom of area source lens 201 is planes.In the edge of the bottom of the light reflective recess 202 of the mid portion at top, be called for short the top 207 of inclination at the bottom of the edge at the top 207 of area source lens 201.
The sectional view of an embodiment of Fig. 2 e display surface light lens.The light reflective recess 202 of reverse taper shape is formed on the top of the inside of area source lens 201.Area source lens 201 have the top 207 and the inclined bottom 204 of inclination.Structure with surfaces 205 light reflective recess 202 corresponding mid portions the bottom of area source lens 201 is the plane.
The sectional view of the embodiment that the difference of Fig. 3 display surface light lens is provided with.
The sectional view of an embodiment of Fig. 3 a display surface light lens.The light reflective recess 302 of reverse taper shape is formed on the top of the inside of area source lens 301, and the side 302z in the cross section of light reflective recess 302 is a straight line.The structure on the surface at the top of area source lens 301 is planar top, covers fluorescent powder membrane 310 or one deck light diffusing particles on the surface at the top of area source lens 301.Setting with surfaces 305 light reflective recess 302 corresponding mid portions the bottom of area source lens 301 is smooth plane.The setting of inclined bottom is that formation concaveconvex structure 309 is gone up on the surface, and concaveconvex structure 309 comprises, alligatoring structure, photon crystal structure.
The sectional view of an embodiment of Fig. 3 b display surface light lens.The light reflective recess 302 of reverse taper shape is formed on the top of the inside of area source lens 301, and the side in the cross section of light reflective recess 302 is a straight line, and the setting of light reflective recess 302 is not have filler, does not have reflectance coating.Structure with surfaces 305 light reflective recess 302 corresponding mid portions the bottom of area source lens 301 is the plane, and the setting on surface 305 is smooth planes.The setting of inclined bottom 304 is that formation site 311 is gone up on the surface.The structure at the top of area source lens 301 is planar top, and the setting on the surface at the top of area source lens 301 is smooth surfaces.
The sectional view of an embodiment of Fig. 3 c display surface light lens.The light reflective recess 302 of reverse taper shape is formed on the top of the inside of area source lens 301, and the side in the cross section of light reflective recess 302 is a curve, and the setting of light reflective recess 302 is to form reflectance coating 302f on its side.Structure with surfaces 305 light reflective recess 302 corresponding mid portions the bottom of area source lens 301 is the plane, and the setting on surface 305 is smooth planes.The setting of inclined bottom is that formation reflectance coating 304f or fluorescent powder membrane are gone up in the surface.The setting of the side of area source lens 301 is to form (or bonding) reflectance coating 301f.Form concaveconvex structure 312 on the surface at the top of area source lens 301, concaveconvex structure comprises, alligatoring structure, photon crystal structure.
The sectional view of an embodiment of Fig. 3 d display surface light lens.The light reflective recess 302 of reverse taper shape is formed on the top of the inside of area source lens 301.Structure with surfaces 305 light reflective recess 302 corresponding mid portions the bottom of area source lens 301 is the plane, and the setting on surface 305 is smooth planes.The setting of inclined bottom 304 is smooth planes.Form concaveconvex structure 307c on the top that tilts, concaveconvex structure comprises, alligatoring structure, photon crystal structure.
The sectional view of an embodiment of Fig. 3 e display surface light lens.The light reflective recess 302 of reverse taper shape is formed on the top of the inside of area source lens 301.Structure with surfaces 305 light reflective recess 302 corresponding mid portions the bottom of area source lens 301 is the plane, and the setting on surface 305 is smooth planes.The setting of inclined bottom 304 is smooth planes.Form fluorescent powder membrane 307f or one deck light diffusing particles on the top that tilts.
The sectional view of an embodiment of Fig. 3 f display surface light lens.The light reflective recess 302 of reverse taper shape is formed on the top of the inside of area source lens 301.Area source lens 301 comprise, the bottom of area source lens 301 and surfaces 305 light reflective recess 302 corresponding mid portions, inclined bottom 304, the top 307 that tilts.The setting of area source lens 301 is: inner doping light diffusing particles.
Note, angle between the surfaces 305 on the top 307 of the inclination of area source lens 301 and the bottom of area source lens 301 and light reflective recess 302 corresponding mid portions is 0.1 ° to 20 °, and the angle between the surfaces 305 on the inclined bottom 304 of area source lens 301 and the bottom of area source lens 301 and light reflective recess 302 corresponding mid portions is 0.1 ° to 20 °.
Top concrete description does not limit scope of the present utility model, and only provides some specific illustrations of the present utility model.Therefore covering scope of the present utility model should be determined by claim and their legal equivalents, rather than by above-mentioned specific detailed description and embodiment decision.
Claims (11)
1. LED area source lens comprise lens; It is characterized in that described lens have top surface, side and inclined bottom; The light reflective recess of a reverse taper shape is formed on the top of the inside of described lens.
2. LED area source lens according to claim 1 is characterized in that, the structure of the top surface of described lens is to select from one group of structure, and this group structure comprises that (1) top surface is a planar top; (2) top surface is the top that tilts.
3. LED area source lens according to claim 2, it is characterized in that, angle between the surface on the bottom of the top of described inclination and described area source lens and the corresponding mid portion of described smooth reflective recess is 0.1 ° to 20 °, and the angle between the surface on the bottom of described inclined bottom and described area source lens and the corresponding mid portion of light reflective recess is 0.1 ° to 20 °.
4. LED area source lens according to claim 1 is characterized in that, the setting of the top surface of described lens is to select from one group is provided with, and the setting of this group comprises, (a) level and smooth surface; (b) form concaveconvex structure on the top surface; (c) form fluorescent powder membrane on the top surface; (d) form concaveconvex structure and on concaveconvex structure, cover fluorescent powder membrane on the top surface.
5. LED area source lens according to claim 1 is characterized in that, the setting of the inclined bottom of described lens is to select from one group is provided with, and the setting of this group comprises, (a) level and smooth surface; (b) form the site on the inclined bottom; (c) form concaveconvex structure on the inclined bottom; (d) cover fluorescent powder membrane on the inclined bottom; (e) form reflectance coating on the inclined bottom; (f) other parts that form site and site and inclined bottom on inclined bottom film that is reflected covers; (g) cover reflectance coating on covering fluorescent powder membrane and the fluorescent powder membrane on the inclined bottom; (h) cover fluorescent powder membrane on formation site and the site on the inclined bottom; (i) cover fluorescent powder membrane on formation concaveconvex structure and the concaveconvex structure on the inclined bottom; (j) cover reflectance coating on formation concaveconvex structure and the concaveconvex structure on the inclined bottom; (k) form on the inclined bottom on concaveconvex structure, the concaveconvex structure to cover on fluorescent powder membrane and the fluorescent powder membrane and cover reflectance coating; (m) form on the inclined bottom on site, the site to cover on fluorescent powder membrane and the fluorescent powder membrane and cover reflectance coating.
6. LED area source lens according to claim 1 is characterized in that, have the light source recess with the corresponding position of described smooth reflective recess on the bottom of the inside of described lens.
7. LED area source lens according to claim 1 is characterized in that, the profile of the top surface of described lens is to select from one group of shape, and this group shape comprises, (a) circle; (b) polygon.
8. LED area source lens according to claim 1 is characterized in that, the setting of described lens is to select from one group is provided with, and the setting of this group comprises, (a) transparent lens; (b) lens of inner doping light diffusing particles; (c) top surface applies the lens of one deck light diffusing particles; (d) inner doping light diffusing particles and top surface apply the lens of one deck light diffusing particles.
9. LED area source lens according to claim 1 is characterized in that, the setting of the side of described lens is to select from one group is provided with, and the setting of this group comprises, (a) forms reflectance coating on the surface of side; (b) bonding one reflectance coating on the surface of side.
10. LED area source lens according to claim 1 is characterized in that, the shape of the profile of the bottom of described smooth reflective recess is to select from one group of shape, and this group shape comprises, (a) circle; (b) polygon; Polygon comprises equilateral triangle, square, regular hexagon; The shape of the side in the cross section of described smooth reflective recess is to select from one group of shape, and this group shape comprises, (a) straight line; (b) curve; (c) broken line.
11. LED area source lens according to claim 1 is characterized in that, the setting of described smooth reflective recess is to select from one group is provided with, and the setting of this group comprises, (a) forms reflectance coating on the side of light reflective recess; (b) non-filler in the light reflective recess; (c) reverberation is filled at the top of light reflective recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920351161XU CN201680288U (en) | 2009-12-26 | 2009-12-26 | Area light source lens of LED point light source |
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| CN200920351161XU CN201680288U (en) | 2009-12-26 | 2009-12-26 | Area light source lens of LED point light source |
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| CN201680288U true CN201680288U (en) | 2010-12-22 |
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| CN102654252A (en) * | 2011-03-04 | 2012-09-05 | 日立空调·家用电器株式会社 | Lens and illumination device |
| CN102748708A (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 fitting using same |
| CN103104834A (en) * | 2011-11-10 | 2013-05-15 | 晶元光电股份有限公司 | Illumination apparatus |
| KR20130051849A (en) * | 2011-11-10 | 2013-05-21 | 엘지이노텍 주식회사 | Member for controlling luminous flux and display device having the same |
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| CN102654252B (en) * | 2011-03-04 | 2015-04-22 | 日立空调·家用电器株式会社 | Lens and illumination device |
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| CN102748708A (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 fitting using same |
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| CN103104834A (en) * | 2011-11-10 | 2013-05-15 | 晶元光电股份有限公司 | Illumination apparatus |
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| CN103836542B (en) * | 2012-11-22 | 2015-10-07 | 深圳市光峰光电技术有限公司 | Wavelength converter, light-source system and relevant projecting system thereof |
| CN103836542A (en) * | 2012-11-22 | 2014-06-04 | 深圳市光峰光电技术有限公司 | Wavelength conversion device, light source system and projection system related to light source system |
| KR20140122934A (en) * | 2013-04-11 | 2014-10-21 | 에스엘 주식회사 | Light emitting apparatus |
| KR102122411B1 (en) * | 2013-04-11 | 2020-06-12 | 에스엘 주식회사 | Light emitting apparatus |
| CN105042507A (en) * | 2014-03-18 | 2015-11-11 | 恩普乐股份有限公司 | Light emitting device, surface light source device and display apparatus |
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| US10503008B2 (en) | 2018-02-28 | 2019-12-10 | Huizhou China Star Optoelectronics Technology Co, Ltd. | Quantum dot (QD) lamps and displays |
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