CN210717003U

CN210717003U - Light source module

Info

Publication number: CN210717003U
Application number: CN201921585382.3U
Authority: CN
Inventors: 张权; 李扬林
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd; YLX Inc
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-06-09
Anticipated expiration: 2029-09-23
Also published as: WO2021057269A1

Abstract

The utility model provides a light source module, including base plate, first LED light source and second LED light source, the base plate includes central zone and centers on central zone's at least one deck annular region. The first LED light source is arranged in the central area; the second LED light sources are arranged in at least one layer of annular area, and in the same annular area, the adjacent second LED light sources have different inclination angles. The utility model provides a different angle of inclination has between the adjacent second LED light source in the same annular region of light source module, has improved the light-emitting homogeneity of light source module, has increased the central illuminance of the emergent facula of light source module.

Description

Light source module

Technical Field

The utility model relates to the field of optical technology, particularly, relate to a light source module.

Background

The LED light source module usually has a secondary optical design, and a compound eye structure is usually adopted to ensure uniformity of light emission, and the compound eye structure is generally classified into a single compound eye structure and a double compound eye structure. The double-compound-eye structure has good light-emitting uniformity effect, but the central illumination of light spots formed by the light emitted by the lamp is low; the illumination of the light-emitting center of the lamp with the single compound eye structure under the same platform can be improved by about 30%, but the single compound eye scheme has the scheme that the light distribution uniformity is relatively poor. Especially, for some lamps with high central brightness requirement and good uniformity of light distribution, the existing single compound eye scheme cannot meet the requirement of emergent light, and therefore a novel light source module scheme is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light source module to solve above-mentioned problem.

The embodiment of the utility model provides an above-mentioned purpose is realized through following technical scheme.

The utility model provides a light source module, including base plate, first LED light source and second LED light source, the base plate includes central zone and centers on central zone's at least one deck annular region. The first LED light source is arranged in the central area; the second LED light sources are arranged in at least one layer of annular area, and in the same annular area, the adjacent second LED light sources have different inclination angles.

In one embodiment, the difference in tilt angle between adjacent second LED light sources is the same within the same annular region.

In one embodiment, the difference in tilt angles is 90 ° or 360 °/n, where n is the number of second LED light sources in the same annular region.

In one embodiment, the second LED light sources in each annular region are arranged in an annular array.

In one embodiment, the second LED light sources in each layer of the annular region are arranged in a polygonal point set.

In one embodiment, the second LED light sources in adjacent annular regions are offset from each other.

In one embodiment, the first LED light source includes a first lens unit and a first LED assembly, each second LED light source includes a second lens unit and a second LED assembly, the first LED assembly and the second LED assembly are mounted on the substrate, the first lens unit covers the first LED assembly, the second lens unit covers the second LED assembly, and the second lens units of adjacent second LED light sources have different tilt angles in the same annular region.

In one embodiment, the first LED assembly comprises 4 first LED chips, the 4 first LED chips are arranged in a rectangular array in the first lens unit, the second LED assembly comprises 4 second LED chips, and the 4 second LED chips are arranged in a rectangular array in the second lens unit.

In one embodiment, the second LED light sources in each layer of the annular region are arranged in a hexagonal point set.

In one embodiment, the light source module further comprises a lens assembly, and the light rays emitted from the first LED light source and the second LED light source pass through the lens assembly and are emitted to form an image.

Compared with the prior art, the utility model provides a different angle of inclination has between the adjacent second LED light source in the same annular region of light source module, has improved the light-emitting homogeneity of light source module, has increased the central illuminance of the emergent facula of light source module.

These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first light source module according to an embodiment of the present invention.

Fig. 2 is a sectional view in the direction a-a of fig. 1.

Fig. 3 is a schematic structural diagram of a second light source module according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a third light source module according to an embodiment of the present invention.

Fig. 5 is an enlarged view of fig. 4 at B.

Fig. 6 is a schematic structural diagram of a fourth light source module according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a fifth light source module according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a sixth light source module according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a seventh light source module according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of an eighth light source module according to an embodiment of the present invention.

Fig. 11 is an effect simulation diagram of the first light source module and the prior art light source module of the present invention.

Detailed Description

In order to facilitate understanding of the embodiments of the present invention, the embodiments of the present invention will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In addition, the "uniformity of light spot distribution" in the present invention means that the light spot has uniform illumination change from the center to the periphery, that is, the central area has the strongest illumination, and the process of gradual weakening of the illumination of the peripheral area is uniform; in other words, there is no suddenly increased or decreased illumination area during the change of the illumination of the light spot.

Referring to fig. 1, the present invention provides a light source module 1, including a substrate 10, a first LED light source 20 and a second LED light source 30, where the substrate 10 includes a central region 11 and at least one annular region 13 surrounding the central region 11, it can be understood that the at least one annular region 13 is connected to the central region 11, and when the annular regions 13 are two or more layers, all the annular regions 13 are connected in sequence from inside to outside, and the outer annular region 13 surrounds the inner annular region 13. the first LED light source 20 is installed in the central region 11. the second LED light source 30 is installed in the at least one annular region 13, and in the same annular region 13, different tilt angles α are provided between the adjacent second LED light sources 30. the tilt angle α is an included angle formed between the width direction of the second LED light source 30 and the width direction of the first LED light source 20, where the width direction is the width direction of a light emitting surface corresponding to the LED light source, and a conventional rectangular LED light source includes a single LED chip, where the width direction is the width direction of the light emitting surface, and if the light source includes a plurality of short sides, the light emitting surface is defined by a plurality of LED chips.

Specifically, in the present embodiment, the orthographic projection of the substrate 10 is substantially rectangular, the center of the substrate 10 is the geometric center thereof, and the material of the substrate 10 may be aluminum, silicon, a polymer material, a composite material, or the like.

In other embodiments, the orthographic projection of the substrate 10 may be a regular circle, an ellipse, a triangle, a square, a trapezoid, or the like, or may be other irregular shapes, which is not limited herein.

The substrate 10 comprises a central region 11 and at least one layer of annular region 13 surrounding the central region 11, wherein the central region 11 is located in a central position of the substrate 10. In this embodiment, the central area 11 may also be a polygon area with the center of the substrate 10 as a center, for example, an inscribed circle with a radius of 1cm or 2cm, wherein the radius may be selected to have a suitable size according to the actual size of the substrate or according to the requirement of the light spot. In other embodiments, the central region 11 may be a circular region with a radius of 1cm, for example, with the center of the rectangular substrate 10 as the center. The annular region 13 may be polygonal ring-shaped and surrounds the central region 11. The distance between two adjacent layers of annular regions 13 may be equal or unequal.

Referring to fig. 1 and fig. 2, the substrate 10 further includes a mounting surface 12 and a fixing surface 14 opposite to each other, where the mounting surface 12 is used for mounting components such as an LED light source, various antennas, a processor module, and the like, and the mounting manner may be soldering or the like. The fixing surface 14 may be used to fix the lamp housing, and the fixing manner may be bonding or screw fixing connection to accommodate the light source module 1 in the lamp housing.

The first LED light source 20 may be a single LED chip, and the LED chip may emit light of a plurality of colors, such as red, green, blue, cyan, white, orange, and purple, according to the material inside the chip. The first LED light source 20 may also be an LED chip array formed by combining a plurality of LED chips, and the colors of the LED chips may be composed of one or more. The first LED light source 20 may also be a common LED light bead.

In the present embodiment, the first LED light source 20 includes a single LED chip, the first LED light source 20 is mounted in the central region 11, and the number of the first LED light sources 20 is one.

In other embodiments, the first LED light source 20 can also be a lighting element formed by a plurality of LED chips or LED bead arrays.

In the present embodiment, the number of the second LED light sources 30 may be 3, 4, 5 or more, the second LED light sources 30 and the first LED light sources 20 have the same structure, the second LED light sources 30 are mounted in at least one layer of the annular region 13, and in the same annular region 13, adjacent second LED light sources 30 have different inclination angles α, wherein the inclination angle α refers to a rotation angle of each second LED light source 30 relative to the first LED light source 20, and the rotation angle may be understood as a rotation angle at which the second LED light source 30 rotates by a predetermined angle with the center of its light emitting surface as a base point, which is the placement direction of the first LED light source 20, and the inclination angle α may also be understood as an angle formed between the width direction of the second LED light source 30 and the width direction of the first LED light source 20, wherein the width direction refers to the width direction of the light emitting surface of the LED light source.

In some embodiments, the second LED light sources 30 in each layer of the annular region 13 are arranged in a polygon point set, where the polygon point set refers to a pattern formed by sequentially connecting the centers of the light emitting surfaces of the second LED light sources 30 clockwise or counterclockwise according to a certain direction, and the polygon may be a quadrangle, a pentagon, a hexagon, etc., and in particular, a regular polygon structure, such as a regular quadrangle, a regular pentagon, a regular hexagon, etc., may also be formed in this embodiment, in the same annular region 13, the difference of the inclination angles α between adjacent second LED light sources 30 is the same and 90 °, in this embodiment, for example, the number of the second LED light sources 30 is 7 in total, and the inclination angles of the first light emitting device, the second light emitting device, the seventh light emitting device, the first light emitting device, the second light emitting device, the third light emitting device, the fourth light emitting device, the third light emitting device, the fourth light emitting device, the third light emitting device, the fourth light emitting device, the third light emitting device, the.

With reference to fig. 1, in the present embodiment, the at least one layer of annular region 13 includes one layer of annular region 13, the number of the second LED light sources 30 in the annular region 13 is 7, and the difference of the inclination angles α between the adjacent second LED light sources 30 in the annular region 13 is 90 °.

In other embodiments, the at least one layer of annular region 13 may include at least two layers of annular regions 13, and the second LED light sources 30 in adjacent annular regions 13 may be staggered from each other, so that the arrangement of the second LED light sources 30 is more uniform, the interference of the light emitted from the second LED light sources 30 in adjacent annular regions 13 is reduced, and the uniformity of the light emitted from the light source module 1 is increased.

In other embodiments, the second LED light sources 30 in each layer of the annular region 13 are arranged in an annular array, that is, the second LED light sources 30 are uniformly distributed in the annular region 13, that is, a line connecting the center of the second LED light source 30 and the center of the first LED light source 20 equally divides the annular region 13.

In one embodiment, the difference in the tilt angle α between adjacent second LED light sources 30 within the same annular region 13 is the same and is 360 °/n, where n is the number of LED light sources in the same annular region 13.

Referring to fig. 3, in one embodiment, the at least one layer of annular region 13 includes one layer of annular region 13, the number of the second LED light sources 30 in the annular region 13 is 7, the 7 second LED light sources 30 are arranged in an annular array, and the difference of the inclination angles α between the adjacent second LED light sources 30 in the annular region 13 is 51.42 °.

Referring to fig. 4, in an embodiment, the first LED light source 20 includes a first lens unit 22 and a first LED assembly 24, the first LED assembly 24 is mounted on the substrate 10, the first LED assembly 24 may include a plurality of first LED chips 241, and the plurality of first LED chips 241 may be arranged in an array or in other forms. The first lens unit 22 is substantially rectangular, and the first lens unit 22 covers the first LED assembly 24, so as to reduce the influence of environmental factors such as water and vapor on the first LED chip 241 and prolong the service life of the light source module 1.

Referring to fig. 4 and 5, in one embodiment, the first LED assembly 24 includes 4 first LED chips 241, the 4 first LED chips 241 are disposed in the first lens unit 22 in a rectangular array, the 4 first LED chips 241 are a red LED chip 2411, a green LED chip 2412, a blue LED chip 2413 and a white LED chip 2414, the blue LED chip 2413 and the red LED chip 2411 are disposed diagonally, and the green LED chip 2412 and the white LED chip 2414 are disposed diagonally.

In one embodiment, the second LED light sources 30 and the first LED light sources 20 have the same structure, each of the second LED light sources 30 may also include a second lens unit 32 and a second LED assembly 34, the second LED assembly 34 is mounted on the substrate 10, the second lens unit 32 covers the second LED assembly 34, and the second lens units 32 of adjacent second LED light sources 30 have different tilt angles α and the tilt angles α of adjacent second LED assemblies 34 are different in the same annular region 13.

Referring to fig. 6, in other embodiments, the second LED light source 30 may further include a single second LED chip 341 on the basis that the first LED light source 20 includes the first lens unit 22 and the first LED assembly 24.

In one embodiment, the inclination angles α of the adjacent second LED assemblies 34 may be the same, and it can be understood by those skilled in the art that the inclination angles α of the second LED assemblies 34 may be arbitrarily set to ensure that the second lens units 32 of the adjacent second LED light sources 30 have different inclination angles α, and because the second lens units 32 cover the second LED assemblies 34, the effect of the light emitted from the second LED assemblies 34 to the outside depends on the arrangement angles of the second lens units 32.

In one embodiment, the second LED assembly 34 includes 4 second LED chips 341, and the 4 second LED chips 341 are disposed in a rectangular array in the second lens unit 32. The 4 second LED chips 341 may also emit different color lights, respectively.

Referring to fig. 7, in one embodiment, the at least one layer of annular regions 13 includes four layers of annular regions 13, the difference of the tilt angles α between the adjacent second LED light sources 30 in the annular regions 13 is 90 °, and the second LED light sources 30 in each layer of annular regions 13 are arranged in a hexagonal point set, as shown in fig. 7, the difference of the tilt angles of two adjacent second LED light sources 30 respectively located in two adjacent annular regions 13 is 90 °.

Referring to fig. 8, in one embodiment, the at least one layer of annular region 13 includes five layers of annular regions 13, the difference of the inclination angles α between the adjacent second LED light sources 30 in the annular regions 13 is 90 °, and the second LED light sources 30 in each layer of annular regions 13 are arranged in an octagonal dot set.

Referring to fig. 9, in an embodiment, the at least one layer of annular region 13 includes four layers of annular regions 13, the difference of the inclination angles α between the adjacent second LED light sources 30 in the annular regions 13 is 90 °, and the second LED light sources 30 in each layer of annular region 13 may also not be arranged in a polygonal dot set, for example, the fourth layer of annular region 13 includes 8 second LED light sources 30 respectively near four corners of the substrate 10.

Referring to fig. 10, in another embodiment, the light source module 1 further includes a lens assembly 500, and the light emitted from the first LED light source 20 and the second LED light source 30 passes through the lens assembly 500 and is emitted to form an image. It is in this embodiment, lens subassembly 500 can include collimating lens 100, fly eye lens 200 and condensing lens 300, and light passes through collimating lens 100's collimation effect after first LED light source 20 and second LED light source 30 are emergent in proper order, and fly eye lens 200 carries out the homogenization of illuminance and colour to the light, passes through the focus of condensing lens 300 again, and on last projecting was to unthreaded hole 400, form the facula of illuminance and colour homogeneity on unthreaded hole 400 to the facula that satisfies light effect and stage effect is emergent.

Please refer to fig. 11, a graph a in fig. 11 is an emergent light spot illuminance simulation diagram of LED light sources arranged along the same direction included in the light source module in the prior art, the spot illuminance distribution of the emergent light is similar to the light emitting surface shape of the LED light source, i.e. equivalent to the superposition of the emergent light of the LED light sources with a plurality of same light emitting surfaces, therefore, even if a subsequent light uniformizing device is added under the condition that the LED light sources included in the light source module are arranged in the same direction, the problem of uneven spot illuminance distribution on the emergent light surface cannot be significantly improved, and a graph b is the emergent light spot illuminance simulation diagram of the first embodiment of the present invention, the emergent light has better distribution uniformity.

To sum up, the utility model provides a different angle of inclination α has between the adjacent second LED light source 30 in the same annular region 13 of light source module 1, has improved light source module 1's light-emitting homogeneity, has increased the central illuminance of the emergent facula of light source module 1.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A light source module, comprising:

a substrate comprising a central region and at least one layer of annular region surrounding the central region;

a first LED light source mounted to the central region; and

and the second LED light sources are arranged in the at least one layer of annular area, and in the same annular area, the adjacent second LED light sources have different inclination angles.

2. The light source module according to claim 1, wherein the difference of the tilt angles between the adjacent second LED light sources is the same in the same annular region.

3. The light source module as claimed in claim 2, wherein the difference of the tilt angles is 90 ° or 360 °/n, where n is the number of the second LED light sources in the same annular region.

4. The light source module as claimed in claim 2, wherein the second LED light sources in each layer of the annular region are arranged in an annular array.

5. The light source module as claimed in claim 1, wherein the second LED light sources in each layer of the annular region are arranged in a polygonal dot set.

6. The light source module according to claim 1, wherein the second LED light sources in adjacent annular regions are mutually staggered.

7. The light source module as claimed in claim 1, wherein the first LED light source includes a first lens unit and a first LED assembly, each of the second LED light sources includes a second lens unit and a second LED assembly, the first LED assembly and the second LED assembly are mounted on the substrate, the first lens unit covers the first LED assembly, the second lens unit covers the second LED assembly, and the second lens units of the adjacent second LED light sources have different tilt angles in the same annular region.

8. The light source module according to claim 7, wherein the first LED assembly comprises 4 first LED chips, the 4 first LED chips are arranged in the first lens unit in a rectangular array, the second LED assembly comprises 4 second LED chips, and the 4 second LED chips are arranged in the second lens unit in a rectangular array.

9. The light source module as claimed in claim 5, wherein the second LED light sources in each layer of the annular region are arranged in a hexagonal point set.

10. The light source module of claim 1, further comprising a lens assembly, wherein the light emitted from the first LED light source and the second LED light source passes through the lens assembly and is imaged.