CN105202394A - Lens combination and lighting device using lens combination - Google Patents

Abstract

The invention discloses a lens combination and a lighting device applying the same, wherein the lens combination is used for at least arranging a first light source and a second light source and comprises a first lens and a second lens, the first lens comprises a first light incident surface, a first light emergent surface and a first arranging space which is positioned on one side of the first light incident surface and is used for arranging the first light source; the second lens comprises a second light incident surface, a second light emitting surface and a second placing space which is positioned on one side of the second light incident surface and used for placing the second light source; the light emitted by the first light source passes through the first light incident surface and the light emergent light pattern behind the first light emergent surface is consistent with the light emergent light pattern behind the second light incident surface and the second light emergent surface. The invention solves the problem that in the prior art, it is difficult to ensure that the light emitted by different light sources can obtain the same light distribution effect after penetrating through the lens covered on the light source.

Description

Lens combination and lighting device using lens combination

technical field

The invention relates to the field of illumination technology, in particular to a lens combination and an illumination device using the lens combination.

Background technique

At present, the lighting device usually includes a light source module and a lens matched with the light source module, so as to focus or collimate the light emitted by the above-mentioned light source module through the lens.

In the prior art, in order to achieve the above-mentioned purpose of focusing or collimating light, when the lighting device includes multiple light sources, a lens covering the light source is provided for each light source, so that the lighting device including multiple light sources Multiple lenses are required.

However, if a lens covering the light source is respectively provided for different light sources, it is difficult to ensure that the light emitted by the different light sources passes through the lens covering the light source. , to obtain the same light distribution effect, thereby affecting the lighting effect of the lighting device.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a lens combination and an illuminating device using the lens combination to solve the problem in the prior art that it is difficult to ensure that the light emitted by different light sources passes through the lens covering the light source to obtain the same The problem of the light distribution effect.

In order to achieve the above purpose, the lens combination provided by the embodiment of the present invention and the lighting device using the lens combination are realized as follows:

A lens combination for at least arranging a first light source and a second light source, comprising:

The first lens includes a first light incident surface, a first light exit surface, and a first installation space on one side of the first light incident surface for arranging the first light source, the first light incident surface and the first light incident surface The first light-emitting surface is curved; and

The second lens includes a second light incident surface, a second light exit surface, and a second installation space on one side of the second light incident surface for arranging the second light source, the second light incident surface and the second light incident surface The second light-emitting surface is curved;

Wherein, the incident light emitted by the first light source passes through the first light incident surface and the first light exit surface, and the incident light emitted by the second light source passes through the second light incident surface, The light types of the light exiting behind the second light exiting surface are consistent.

Further, the first lens and the second lens are provided integrally or separately.

Further, the first lens is in the shape of a ring.

Further, the first lens is configured such that the angle between the incident light emitted by the first light source and the normal is greater than the outgoing light and the normal obtained after the incident light passes through the light incident surface and the light exit surface The included angle; the second lens is configured such that the included angle between the incident light emitted by the second light source and the normal is larger than the outgoing light obtained after the incident light passes through the light incident surface and the light exit surface and the normal The angle of the line.

Further, the second lens is in the shape of a ring or a point, and if the second lens is in the shape of a ring, the center of the first lens coincides with the center of the second lens; the second lens If the two lenses are point-shaped, the second lens is located at the center of the first lens.

Further, the surface shape of the first section of the first lens obtained along the first section line is inconsistent with the surface type of the second section of the second lens obtained along the first section line, and the first section line through the center of the first lens.

Further, a concavo-convex structure is formed on the first light incident surface and/or the first light exit surface, a concavo-convex structure is formed on the second light incident surface and/or the second light exit surface, and the concavo-convex structure The structure includes one or more of etched structure and frosted structure.

Further, the dispersion angle corresponding to the etched structure or the frosted structure is positively correlated with the distribution angles of the first and second light sources in the first and second installation spaces.

Further, the first light-incident surface and/or the first light-exit surface are provided with a concave-convex grain-removing layer, and the second light-incidence surface and/or the second light-exit surface are provided with Concave-convex grain-removing layer.

A lighting device using a combination of lenses, comprising:

case;

a light source module, located in the housing, including a substrate and a first light source and a second light source disposed on the substrate; and

A lens combination matched with the light source module, the lens combination includes:

The first lens includes a first light incident surface, a first light exit surface, and a first installation space on one side of the first light incident surface for arranging the first light source, the first light incident surface and the first light incident surface The first light-emitting surface is curved; and

The second lens includes a second light incident surface, a second light exit surface, and a second installation space on one side of the second light incident surface for arranging the second light source, the second light incident surface and the second light incident surface The second light-emitting surface is curved;

Wherein, the light emitted by the first light source passes through the first light incident surface and the first light exit surface, and the light emitted by the second light source passes through the second light incident surface and the second light exit surface. The light types behind the second light-emitting surface are the same.

Further, the illuminating device further includes a reflective part disposed in the housing and arranged in a ring shape.

It can be seen from the above technical solution provided by the present invention that the lens combination used in the lighting device of the present invention can make the incident light emitted by the first light source installed in the first installation space pass through the first light incident surface and the first light exit. The outgoing light pattern obtained after the surface is consistent with the outgoing light pattern obtained by the incident light emitted by the second light source placed in the second installation space after passing through the second light incident surface and the second light exit surface, thus ensuring that the lens The first lens and the second lens in the combination can have the same light distribution effect, and it is avoided to provide each light source with a lens covering the light source respectively, thereby improving the lighting effect of the lighting device.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in the present invention. Those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a perspective view of a lighting device in an embodiment of the present invention;

Fig. 2 is an exploded view of the lighting device in the embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view of the lighting device along the A-A direction of Fig. 1;

Fig. 4 is a schematic cross-sectional view of the lens combination along the A-A direction of Fig. 1;

Fig. 5 shows another angle of view of the cross-sectional schematic diagram shown in Fig. 3;

Fig. 6 is a schematic structural diagram of a lens combination on the light incident surface side in an embodiment of the present invention;

7a and 7b are schematic diagrams of the arrangement of the first light source on the light source module in the embodiment of the present invention;

Fig. 8 is a schematic diagram of a light distribution curve in an embodiment of the present invention;

Fig. 9 is an optical path diagram of the light emitted by the light source passing through the light incident surface and the light exit surface of the lens in the embodiment of the present invention;

Fig. 10 is an optical path diagram of the light emitted by the first and second light sources passing through the lens combination in the embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a lighting device to solve the problem in the prior art that it is difficult to ensure that the light emitted by each light source included in the above lighting device passes through each lens to obtain a consistent light pattern.

Referring to FIG. 1 and FIG. 2 , the lighting device 100 of this embodiment may include a housing 10 , a light source module 40 disposed in the housing 10 , and a lens assembly 30 matched with the light source module 40 .

The light source module 40 may include a substrate 41 , a plurality of first light sources 42 arranged in a ring shape arranged on the first surface 410 of the substrate 41 , and one or more second light sources arranged on the first surface 410 of the substrate 41 43. Wherein, the second light source 43 is located at the center of the ring of the first light source 42 . The above-mentioned first light source 42 and the second light source 43 may be light emitting diodes (Light Emitting Diode, LED), or other types of light emitters. The above-mentioned light source module 40 also includes electronic devices (not shown) disposed on the substrate 41 . The light source module 40 can be integrated with a driving module (not shown) for driving the light source module 40, and the driving module can be integrated on the first surface 410 of the substrate 41, or opposite to the first surface set on the second surface.

Correspondingly, the lens assembly 30 may include a base 33 for attaching to the base plate 41 of the above-mentioned light source module 40, a ring-shaped first lens 32 connected to the base 33, and a ring-shaped first lens 32 connected to the base 33 and positioned at The second lens 31 is the center of the first lens 32 . Wherein, the above-mentioned first lens 32 is arranged in cooperation with the first light source 42 of the above-mentioned light source module, and the above-mentioned second lens 31 is arranged in cooperation with the second light source 41 of the above-mentioned light source module 40 .

It is worth mentioning that the above-mentioned lens combination 30 is a lens component comprising at least two lenses, and the at least two lenses may be integrally arranged or not integrally arranged, and the number of lenses included in the lens combination 30 is not limited by limited to this. In the embodiment of the present application, the above-mentioned second lens 31 may be annular or non-annular (such as point). Preferably, if the first lens 32 and the second lens 31 are both annular, the center of the first lens 32 (that is, the center of the circle presented by the lens) coincides with the center of the second lens 31; If the first lens 32 is annular, and the second lens 31 is point-shaped, then the position of the second lens 31 can be arranged on the ring center of the first lens 32, and further, if the second lens 31 is Dot shape, the center of the dot of the second lens 31 can be set to coincide with the center of the ring of the first lens 32 . Of course, in a feasible embodiment of the present application, the mutual positions of the first lens 32 and the second lens 31 are not limited.

Preferably, in order to further improve the luminous effect and aesthetics of the lighting device 100, the above-mentioned lighting device 100 may further include a reflective member 20 disposed in the casing 10 and arranged in a ring shape, and the reflective member 20 surrounds the first outside the lens 32. The reflective component 20 includes an arc-shaped reflective surface 21 and an opening 22 for the lens assembly 30 to pass through during installation. The above-mentioned reflective member 20 may adopt specular reflection, or diffuse reflection, or absorption type reflection, and the like.

In the embodiment of the present invention, the housing 10 may include a bottom wall 12 and a side wall 11 connected to the bottom wall 12, the bottom wall 12 is provided with a plurality of fixing screw holes 13, correspondingly, the substrate 41 of the light source module 40 A plurality of notches 45 are provided on it. A plurality of fixing through holes 34 are disposed on the base 33 of the lens assembly 30 . The sidewall 11 of the casing 10 is further provided with a plurality of locking portions 110 protruding inwardly from the sidewall 11 . The reflector 20 is further provided with a mounting wall 23 for fitting with the side wall 11 of the housing 10 , and the mounting wall 23 is provided with a plurality of fastening holes 230 for matching with the above-mentioned fastening portion 110 .

During the installation process, the light source module 40 is first placed on the bottom wall 12 of the casing 10, and during the placement process, the plurality of notches 45 of the light source module 40 are respectively fitted on the bottom wall 12 There are a plurality of fixing screw holes 13 , and then the lens assembly 30 is placed on the first surface 410 of the substrate 41 on which the first light source 42 is provided. Similarly, during the placement process, the positions of the multiple fixing through holes 34 of the lens assembly 30 and the multiple fixing screw holes 13 can be matched, and the above-mentioned light source module 40 and the lens combination can be connected through the bolts 70 matched with the fixing screw holes 13. 30 is fixed in the housing 10. Of course, the above-mentioned combination of the light source module 40 and the lens assembly 30 is not limited to this, and may also be glued, riveted, or the like. Subsequently, the reflective component 20 is placed on the periphery of the lens assembly 30 , and the reflective component 20 and the housing 10 are fixed to each other through the interfitting buckling portion 110 and the buckling hole 230 . Similarly, the above-mentioned combination of the reflective member 20 and the casing 10 is not limited thereto, and may also be glued, riveted, or the like. It is worth mentioning that the lighting device 100 further includes a wire 60 installed on the bottom of the housing 10 , and the wire 60 is electrically connected to the light source module 40 .

Cooperate with reference to Fig. 3 to Fig. 5, wherein, define that the section shown in Fig. 3 to Fig. 5 is obtained along the first section line (that is, the A-A direction shown in Fig. 1), and the first section section The line passes through the center of the first lens 32. The first lens 32 includes a ring-shaped first lens body 320 and a first groove 323 recessed from the base 33 , and the second lens 31 includes a second lens body 310 and a recess from the base 33 The second groove 313 is formed. The first lens 32 has a first light incident surface 322 and a first light exit surface 324 arranged opposite to each other. After the lens assembly 30 and the light source module 40 are installed, due to the existence of the first groove 323, the first light incident surface A first cavity 321 for arranging the first light source 42 can be formed between the surface 322 and the first surface 410 (shown in FIG. 2 ). Similarly, the second lens 31 also has a second light-incident surface and a second light-exit surface opposite to each other. Due to the existence of the second groove 313, when the lens combination 30 and the light source module 40 are installed, the second A second cavity 311 for arranging the second light source 43 is formed between the second light incident surface of the lens 31 and the first surface 410 . In the embodiment of the present invention, the first light source 42 distributed in a ring shape of the light source module 40 can be placed in the first cavity 321 of the first lens 32, compared with the prior art, the lighting device 100 can be limited More light sources are arranged in the space, thereby improving the luminous efficiency of the lighting device 100 . In addition, the lens combination 30 can adjust the number of the first light sources 42 inside the first lens 32 accordingly according to the required luminous flux. Moreover, the above-mentioned lens combination 30 can share a variety of packages with good compatibility, and the arrangement of the light sources on the substrate 41 is more flexible.

It is also worth noting that, in the embodiment of the present invention, the first light incident surface 322 and the first light exit surface 324 of the first lens 32 are set as curved surfaces, and the curvature radius of the first light incident surface 322 is greater than the The radius of curvature of the first light-emitting surface 324 is described above. In this way, when the light source of the lighting device is installed in the lens assembly 30, the incident light emitted by the light source completely passes through the lens assembly 30 to be emitted outward, and the first lens 32 with a curved surface shape can make the luminous efficiency and light distribution effect better. good. Since the embodiment of the present invention forms a first cavity or a second cavity surrounded by the substrate 41 and the base 33 by bonding the substrate 41 of the light source module 40 and the base 33 of the lens assembly 30 to each other, each The first light source and the second light source are completely accommodated in the first cavity 321 or the second cavity 311 , which can ensure that all incident light can pass through the lens assembly 30 and irradiate outside the lighting device, and the luminous efficiency is high.

Referring to FIG. 4 , in order to make the light distribution effect of each light source on the lighting device consistent after passing through the above-mentioned lens combination 30 (that is, the output light type is consistent), in this embodiment, the first lens 32 is obtained along the first section line. The surface shape of the first section of the second lens 31 is not consistent with the surface shape of the second section obtained along the first section line of the second lens 31 . In this embodiment, the height of the first lens 32 in the thickness direction of the base portion 33 is not equal to the height of the second lens 31 in the thickness direction of the base portion 33 . That is to say, if the height of the first lens 32 in the thickness direction of the base 33 is defined as: the first vertical distance from the first top 325 of the first lens 32 to the base 33; The height in the thickness direction of 33 is: the second vertical distance from the second top 315 of the second lens 31 to the base 33 , and the above-mentioned first vertical distance can be greater or smaller than the above-mentioned second vertical distance. Certainly, in a preferred embodiment, the above-mentioned first vertical distance is set to be greater than the above-mentioned second vertical distance.

Preferably, an accommodating space 25 for accommodating electronic components (not shown) of the light source module 40 is formed between the casing 10 and the reflective member 20 . In this embodiment, by distributing the electronic components in the accommodating space 25 , the thickness of the lighting device can be effectively reduced, making the lighting device lighter and thinner. Wherein, the electronic device may include a driving module (not shown), so that the driving module is also arranged in the accommodating space 25 . Of course, the above driving module can also be integrally integrated with the light source module on the substrate 41 .

Referring to FIG. 6 , it is a schematic structural view of the side of the first lens on which the first light-incident surface is provided. During actual use, a small amount of light sources may not be turned on in the lighting device, which may cause graininess when the human eye observes the lighting device through the lens. In order to eliminate the above-mentioned graininess and enhance the visual effect, in this embodiment, a graininess-removing layer 35 in a concave-convex shape may be formed on the first light incident surface 322 or the first light exit surface 324 of the first lens 30 . The grain-removing layer 35 can be any form of concave-convex structure integrally formed on the first light-incident surface 322 and/or the first light-exit surface 324 of the first lens 32 , such as a "V"-shaped structure. Certainly, the grain-removing layer 35 in a concave-convex shape may also be disposed on the first light-incident surface 322 and the first light-exit surface 324 at the same time. In the same principle, the grain removal layer 35 may also be formed on the second light incident surface or the second light output surface of the second lens 31 .

7a and 7b, which are schematic diagrams of the arrangement of the first light source on the light source module in the embodiment of the present invention. Wherein, it can be seen that the number of the first light sources 42 arranged in a ring can be adjusted as required. The distribution angle of the first light sources 42 is defined as: the angle formed by the line between two adjacent first light sources 42 and the center of the ring. Then, the number of first light sources 42 in FIG. 7a is 20, and the distribution angle thereof is 18°. The number of first light sources 42 in FIG. 7b is 40, and their distribution angle is 9°. In the embodiment of the present invention, in order to eliminate the spot phenomenon caused by the stretching direction of the ring-shaped first lens 32 being unable to control the light, a There is a concave-convex structure, and the concave-convex structure may include one or more of an etched structure formed by an etching process, and a frosted structure formed by a frosting process. In this embodiment, through the above-mentioned etched structure or frosted structure, the dispersion angle of the incident light generated by the first light source 42 after passing through the first lens can meet a certain requirement.

Referring to FIG. 8 , it is a schematic diagram of a light distribution curve in an embodiment of the present invention. The definition of the above-mentioned dispersion angle refers to: when a bundle of parallel light rays is incident on the first lens 32, the exit light of 1/2 intensity corresponding to half of the maximum value of the exit light intensity is determined, then the dispersion angle is Refers to the angle formed by two outgoing rays of 1/2 intensity. For example, in the light distribution curve in Figure 8, if the maximum intensity of the outgoing light is 1 (the light with the maximum light intensity is concentrated at the normal position of the first lens), then the outgoing light with 1/2 intensity is distributed in the above method The position of ±2.5° of the line position, so at this time, the dispersion angle is 5°.

In order to obtain a uniform light spot, in this embodiment, the etched structure or the frosted structure makes the dispersion angle of the first lens 32 positively correlated with the distribution angle of the first light source 42 . That is to say, when the distribution angle becomes smaller, the size of the above-mentioned dispersion angle needs to be correspondingly reduced, and when the distribution angle becomes larger, the size of the above-mentioned dispersion angle needs to be correspondingly increased. For example: when the distribution angle is 18°, the dispersion angle may be 12°, and when the distribution angle is 9°, the dispersion angle may be 6°.

Referring to FIG. 9 , it is an optical path diagram of the incident light of the light source passing through the lens in the present invention. Both the light-incident surface and the light-exit surface of the lens have a converging effect on the light. Among them, define the angle between the incident ray of the light source and the normal line as a, define the angle between the incident ray of the light source and the normal line obtained by refracting the light incident surface as b, and define the light refracted by the above light incident surface and then pass through The angle between the light refracted by the light exit surface and the normal line is c. Generally, the above-mentioned included angle a is 0°-90°, and after being refracted by the light-incident surface, the above-mentioned included angle b converges to 0°-65°, and after being refracted by the light-emitting surface, the above-mentioned included angle c converges to 0°-50° °. Referring to FIG. 10 , it is an optical path diagram of the light emitted by the first and second light sources passing through the lens combination. If the light type is defined, it is the maximum angle between the outgoing light and the normal after the light generated by the light source is refracted by the lens (the first lens 32 or the second lens 31 ). For example, after the light emitted by the first light source 42 in the first lens 32 is refracted by the first light incident surface 322 and the first light exit surface 324 of the first lens 32, the maximum angle between the outgoing light and the normal line is β1, After the light emitted by the second light source 43 in the second lens 31 is refracted by the second light incident surface and the second light exit surface of the second lens 31 , the maximum included angle between the outgoing light and the normal line is β2. Therefore, the outgoing light pattern of the light emitted by the first light source 42 after passing through the first lens 32 is consistent with the outgoing light pattern of the light emitted by the second light source 43 after passing through the second lens 31. It can be understood that the above-mentioned included angle β1 is the same as the above-mentioned The included angles β2 are equal. It can be seen that in the embodiment of the present invention, the first lens 32 is arranged in a circular shape, and the second lens 31 is arranged in a point shape. If the cross-sectional shape of the second cross section corresponding to the point-like second lens 31 is the same, it is difficult to achieve the light pattern after the first light source 42 passes through the first lens 32 and the light pattern after the second light source 43 passes through the second lens 31. The effect of the light type is exactly the same. For this reason, in this embodiment, the sectional surface shape of the first section corresponding to the above-mentioned first lens 32 is set to be inconsistent with the sectional surface shape of the second section corresponding to the above-mentioned second lens 31, thereby realizing the light distribution of the two. same type. Based on the above, the present invention sets the cross-sectional shapes of the first lens 32 and the second lens 31 to be inconsistent, so that the first lens 32 and the second lens 31 have the same light distribution effect (that is, the above-mentioned angle β1 and the above-mentioned The included angle β2 is equal). Usually, due to the difference in manufacturing process, the point-shaped second lens 31 is a rotationally symmetrical surface, while the ring-shaped first lens 32 is not a rotationally symmetrical surface, assuming that the incident light passes through the point-shaped second lens 31 The maximum included angle β2 between the outgoing light and the normal obtained after is 60°. If the cross-sectional surface type of the ring-shaped first lens 32 is set to be the same as the cross-sectional surface type of the second lens 31, the incident light may pass through The maximum angle β2 between the outgoing light and the normal obtained after passing through such a first lens 32 is usually greater than 60° (for example, 70°-80°). Based on the above reasons, in order to make the ring-shaped first lens 32 and the dot-shaped second lens 31 have the same light distribution effect, the present invention will change the cross-sectional shape of the above-mentioned first lens 32 in the process to make The maximum included angle β2 between the incident light and the normal obtained after the incident light passes through the first lens 32 is maintained at 60°. In various embodiments of the present invention, the method of changing the cross-sectional surface type of the first lens 32 may include changing the curvature of the first light incident surface 322 and the first light exit surface 324 of the first lens 32, or changing the height of the first lens 32, Or change the width of the first lens 32, etc., which are not limited in the present invention.

To sum up, the lens combination used in the lighting device of the present invention can make the incident light emitted by the first light source installed in the first installation space pass through the first light incident surface and the first light exit surface to obtain the output light pattern , which is consistent with the outgoing light type of the incident light emitted by the second light source placed in the second installation space after passing through the second light incident surface and the second light exit surface, so that the first lens and the second light emitting surface in the lens combination can be ensured The second lens can have the same light distribution effect, and it is avoided to provide each light source with a lens covering the light source, thereby improving the lighting effect of the lighting device.

The above are only examples of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims (11)

1. a lens combination, in order at least to settle the first light source and secondary light source, is characterized in that, described lens combination comprises:

First lens, comprise the first incidence surface, the first exiting surface and be positioned at first accommodation space in order to settle described first light source of described first incidence surface side, described first incidence surface and described first exiting surface are curved; And

Second lens, comprise the second incidence surface, the second exiting surface and be positioned at second accommodation space in order to settle described secondary light source of described second incidence surface side, described second incidence surface and described second exiting surface are curved;

Wherein, the incident ray of described first light source transmitting is consistent with the bright dipping light type of the incident ray that described secondary light source is launched after described second incidence surface, described second exiting surface through the bright dipping light type of described first incidence surface after described first exiting surface.

2. lens combination as claimed in claim 1, is characterized in that, described first lens and described second lens are integrated and arrange or be separated setting.

3. lens combination as claimed in claim 1, it is characterized in that, described first lens are circular.

4. lens combination as claimed in claim 1, it is characterized in that, described first lens are configured such that the incident ray that described first light source is launched and the angle of normal are greater than the angle of emergent ray that this incident ray obtains after described incidence surface and described exiting surface and normal; Described second lens are configured such that the angle of the incident ray that described secondary light source is launched and normal is greater than the angle of emergent ray that this incident ray obtains after described incidence surface and described exiting surface and normal.

5. lens combination as claimed in claim 1, it is characterized in that, described second lens are circular or point-like, and wherein said second lens are circular, then the ring heart of described first lens overlaps with the ring heart of described second lens; Described second lens are point-like, then described second lens are positioned at the ring heart of described first lens.

6. lens combination as claimed in claim 5, it is characterized in that, the face type in the second cross section that the face type in the first cross section that described first lens obtain along the first hatching and described second lens obtain along the first hatching is inconsistent, and described first hatching is by the ring heart of described first lens.

7. lens combination as claimed in claim 1, it is characterized in that, described first incidence surface and/or described first exiting surface are formed with concaveconvex structure, described second incidence surface and/or described second exiting surface are formed with concaveconvex structure, described concaveconvex structure comprise in erosion line structure, frosted structure one or more.

8. lens combination as claimed in claim 7, is characterized in that, the distribution angle positive correlation of first, second light source in described erosion line structure or dispersion angle corresponding to described frosted structure and first, second accommodation space described.

9. lens combination as claimed in claim 1, it is characterized in that, described first incidence surface and/or described first exiting surface are provided with the granular sensation layer of dispelling of concave-convex surface, described second incidence surface and/or described second exiting surface are provided with the granular sensation layer of dispelling of concave-convex surface.

10. apply a lighting device for lens combination, it is characterized in that, comprising:

Housing;

Light source module, is positioned at described housing, and described light source module comprises substrate and the first light source of being arranged on described substrate and secondary light source; And

With described light source die assembly close as the lens combination in claim 1 ~ 9 as described in any one.

11. lighting devices as claimed in claim 10, is characterized in that, described lighting device also comprises and being arranged in described housing and the reflection part arranged in the form of a ring.