CN218783036U

CN218783036U - Multi-color light source module capable of uniformly mixing light and lighting device

Info

Publication number: CN218783036U
Application number: CN202222636208.5U
Authority: CN
Inventors: 杨攀; 童鹍
Original assignee: Aputure Imaging Industries Co Ltd
Current assignee: Shenzhen Aitushi Innovation Technology Co.,Ltd.
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-31
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a multicolor light source module and a lighting device for uniform light mixing, which comprises a substrate and LED light source chips, wherein the LED light source chips are arranged on the substrate; the LED light source chip comprises a cold white LED chip, a warm white LED chip and a plurality of colored LED chips; the substrate is provided with a first light emitting surface and a second light emitting surface, and the first light emitting surface is circular; the second light-emitting surface is annular and surrounds the first light-emitting surface; the cold white LED chips and the warm white LED chips are distributed on the first light emitting surface in rows; the cold white light LED chips at the head and the tail of each row of cold white light LED chips are inscribed in the circle of the first light emitting surface; warm white LED chips at the head and the tail of each row of warm white LED chips are inscribed in a circle of the first light emitting surface; the plurality of colored LED chips are annularly and crossly distributed on the second light-emitting surface. The utility model discloses a polychrome light source module and lighting device of even mixed light makes the colour mix more evenly.

Description

Multi-color light source module capable of uniformly mixing light and lighting device

Technical Field

The utility model relates to an lighting apparatus technical field especially relates to a polychrome light source module and lighting device of even mixed light.

Background

At present, in the shooting process of movies, stages, studios, sports events and the like, lighting and supplementary lighting are generally needed to be carried out on shooting objects or environments. In a conventional shooting scene, white light illumination is selected, but in some special scenes, a color dimming function is required to be provided in order to highlight atmosphere or colors. This requires that a LED light source module includes several LEDs of different color types, where the colors may include R, G, B, W, and C, and each LED of different colors can be independently driven to achieve uniform light mixing, which results in high hardware cost and large size.

In addition, because each of the LEDs with different colors can be driven independently, the operating voltage is not easy to control, and different brightness of each color is easy to appear, so that the uniformity of light spots is poor and the illumination effect is poor after the LEDs with various colors are lighted.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's not enough, one of the purposes of the utility model provides a polychrome light source module of even mixed light, adopt the cold white light LED chip and the warm white light LED chip that the in-line distributes on the first luminescent surface in the middle of it, lie in and adopt on the first luminescent surface outlying second luminescent surface to be red light LED chip, green glow LED chip and the blue light LED chip of annular staggered distribution, the mixed light is even.

A second object of the present invention is to provide a lighting device, which has uniform light mixing.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

the multicolor light source module for uniformly mixing light comprises a substrate and a plurality of LED light source chips, wherein the LED light source chips are arranged on the substrate; the LED light source chips comprise a plurality of cold white LED chips, a plurality of warm white LED chips and a plurality of color LED chips;

the substrate is provided with a first light emitting surface and a second light emitting surface, and the first light emitting surface is circular; the second light-emitting surface is annular and surrounds the first light-emitting surface;

the plurality of cold white LED chips and the plurality of warm white LED chips are distributed on the first light emitting surface in a row; the plurality of cold white LED chips and the plurality of warm white LED chips are distributed on the first light emitting surface in a staggered manner; the cold white light LED chips at the head and the tail of each row of cold white light LED chips are inscribed in a circle of the first light emitting surface; the warm white LED chips at the head and the tail of each row of warm white LED chips are inscribed in a circle of the first light emitting surface;

and the plurality of colored LED chips are annularly and crossly distributed on the second luminous surface.

Further, the plurality of color LED chips comprise a plurality of red LED chips, a plurality of green LED chips and a plurality of blue LED chips; the plurality of red light LED chips, the plurality of green light LED chips and the plurality of blue light LED chips are annularly distributed on the second light emitting surface, and the plurality of red light LED chips, the plurality of green light LED chips and the plurality of blue light LED chips are distributed in a staggered mode.

Furthermore, the plurality of cold white LED chips are electrically connected in series; the plurality of warm white LED chips are electrically connected in series; the plurality of red light LED chips are electrically connected in series; the green LED chips are electrically connected in series; the plurality of blue light LED chips are electrically connected in series;

the plurality of cold white light LED chips, the plurality of warm white light LED chips, the plurality of red light LED chips, the plurality of green light LED chips and the plurality of blue light LED chips are electrically connected in parallel.

Further, the number of the cold white light LED chips is N1, and the working rated current of the cold white light LED chips is A1; the number of the warm white LED chips is N2, and the working rated current of the warm white LED chips is A2; the number of the red light LED chips is N3, and the working rated current of the red light LED chips is A3; the number of the green light LED chips is N4, and the working rated current of the green light LED chips is A4; the number of the blue LED chips is N5, and the working rated current of the blue LED chips is A5;

the N1= N2; the N1= (16/3) × N3; n1=8 × N4; n1=8 × N5;

said A1= A2; the A1= (3/16) × A3; the A1= (1/8) × A4; the A1= (1/8) × A5.

Furthermore, at least two circles of the plurality of red light LED chips, the plurality of green light LED chips and the plurality of blue light LED chips are distributed on the second light emitting surface from inside to outside; and at least one green light LED chip is distributed at the adjacent position of one red light LED chip.

Furtherly is arranged in a plurality of ruddiness LED chips of inboard first round, a plurality of green glow LED chip and a plurality of blue light LED chip to a ruddiness LED chip, a green glow LED chip and a blue light LED chip are first row cloth group, and the first row of cloth of every group is that annular interval evenly distributed in on the second light emitting area.

Furthermore, in the first circle of the plurality of red light LED chips, the plurality of green light LED chips and the plurality of blue light LED chips which are positioned at the periphery, two red light LED chips, one green light LED chip and one blue light LED chip are used as a second arrangement group, and each second arrangement group is uniformly distributed on the second light emitting surface in an annular interval manner; the two red LED chips of the second arrangement group are adjacent to the green LED chips of the first arrangement group.

Furthermore, the two red light LED chips of the second arrangement group are arranged corresponding to the green light LED chips of the first arrangement group; the blue LED chips of the second arrangement group are arranged corresponding to the blue LED chips of the first arrangement group; and the green LED chips of the second arrangement group are arranged corresponding to the red LED chips of the first arrangement group.

Furthermore, a cold white light LED chip connection anode, a warm white light LED chip connection anode, a red light LED chip connection anode, a green light LED chip connection anode and a blue light LED chip connection anode are distributed on one side of the substrate, which is positioned outside the second light emitting surface; and a cold white light LED chip wiring negative electrode, a warm white light LED chip wiring negative electrode, a red light LED chip wiring negative electrode, a green light LED chip wiring negative electrode and a blue light LED chip wiring negative electrode are distributed on the other side of the substrate, which is positioned outside the second light-emitting surface.

Furthermore, every two rows of the cold white light LED chips and every two rows of the warm white light LED chips are distributed on the first light emitting face in a staggered mode.

The second purpose of the utility model is realized by adopting the following technical scheme:

the illuminating device comprises a light-transmitting shell and the multicolor light source module for uniformly mixing light, wherein the multicolor light source module for uniformly mixing light is arranged in the light-transmitting shell.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) The utility model discloses a polychrome light source module of even mixed light, its first light-emitting face adopts cold white light LED chip and the warm white light LED chip that the row distributes, and the peripheral second light-emitting face of first light-emitting face then adopts red light LED chip, green glow LED chip and the blue light LED chip that is the crisscross arrangement of annular, under CCT (Correlated color temperature) and HIS mode (Hue-Saturation-luminance, hue-Intensity-Saturation), the homoenergetic mixed light is even; in addition, the number of the chips and the size of the chips are set, so that the voltages of the five light source chips are consistent, and the hardware driving volume and the cost are reduced.

(2) The lighting device of the utility model, through setting up the above-mentioned polychrome light source module of even mixed light, under CCT and HIS's mode, make the light source of five kinds of colours R, G, B, W, C realize the mixed light of mixing, and can make the voltage of the chip of five kinds of colours R, G, B, W, C unanimous, thus realize the luminance unanimity; in addition, the multicolor light source module capable of uniformly mixing light is arranged, so that the volume and the cost of hardware drive can be reduced.

Drawings

Fig. 1 is a schematic structural diagram of a multicolor light source module for uniform light mixing according to the present invention;

fig. 2 is a schematic structural diagram of a red LED chip in the multi-color light source module for uniform light mixing according to the present invention;

fig. 3 is a schematic structural diagram of a green LED chip in the multi-color light source module for uniform light mixing of the present invention;

fig. 4 is a schematic structural diagram of a blue LED chip in the multi-color light source module for uniform light mixing of the present invention;

fig. 5 is a schematic structural view of the cool white LED chip in the multi-color light source module for uniform light mixing of the present invention;

fig. 6 is a schematic structural diagram of a warm white LED chip in the multi-color light source module for uniform light mixing of the present invention;

fig. 7 is a schematic structural diagram of the substrate of the present invention.

In the figure: 1. a first light emitting face; 2. a second light emitting face; 3. a cold white LED chip; 31. the cold white LED chip is connected with the positive electrode; 32. a cold white light LED chip is connected with the negative electrode; 4. a warm white LED chip; 41. the warm white LED chip is connected with the positive electrode; 42. a warm white light LED chip is connected with a negative electrode; 5. a red LED chip; 51. the red LED chip is connected with the positive electrode; 52. a red light LED chip is connected with the negative electrode; 6. a green LED chip; 61. the green light LED chip is connected with the positive electrode; 62. a green LED chip wiring cathode; 7. a blue LED chip; 71. the blue LED chip is connected with the positive electrode; 72. a wiring cathode of the blue LED chip; 8. a substrate.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

in the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

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 description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the prior art, some special occasions need to use light sources with different colors and need to have a color dimming function. This requires that an LED light source module needs to include several types of LED light sources with different colors, where the colors may include five types, i.e., R, G, B, W, and C, and each LED with different colors can be independently driven to achieve uniform light mixing, but such an arrangement would make the hardware cost too high and the volume too large.

And because the LEDs of five different colors are driven independently, the working voltage is easy to control, so that the voltage of the LED of each color is different, and the brightness of each color is different, therefore, after the LED of each color is lightened, the uniformity of light spots is poor, and the lighting effect is poor.

In order to solve the above-mentioned problems, therefore, in embodiment 1,

the multicolor light source module with uniform light mixing shown in fig. 1-7 comprises a substrate 8 and a plurality of LED light source chips, wherein the substrate 8 is provided with a first light emitting face 1 and a second light emitting face 2, the first light emitting face 1 is circular, the second light emitting face 2 is annular, and an inner ring of the second light emitting face is a circle surrounded by the first light emitting face;

a plurality of LED light source chips are mounted on the substrate 8, and specifically, the plurality of LED light source chips at least include five color LED light source chips, i.e., a plurality of cold white LED chips 3, a plurality of warm white LED chips 4, a plurality of red LED chips 5, a plurality of green LED chips 6, and a plurality of blue LED chips 7.

As shown in fig. 5 and 6, a plurality of cold white LED chips 3 and a plurality of warm white LED chips 4 are all mounted on the first light emitting surface 1 of the substrate 8 in a row, and in each row of cold white LED chips 3, the cold white LED chips 3 at the head and the tail are all internally connected in a circle of the first light emitting surface 1; in each row of warm white LED chips 4, the warm white LED chips 4 at the head and the tail are all internally connected in the circle of the first light emitting surface 1; that is, in each line of LED light source chips in the circle of the first light emitting surface 1, the LED light source chips at the head and the tail are inscribed in the circle, so that a plurality of LED light source chips installed in the first light emitting surface 1 form a light emitting area, and the light emitting area is circular as a whole.

In addition, as shown in fig. 2 to 4, a plurality of red LED chips 5, a plurality of green LED chips 6, and a plurality of blue LED chips 7 are installed in the second light emitting surface 2, and the plurality of red LED chips 5, the plurality of green LED chips 6, and the plurality of blue LED chips 7 are distributed in an annular shape, and the plurality of red LED chips 5, the plurality of green LED chips 6, and the plurality of blue LED chips 7 are distributed in a staggered manner, that is, a plurality of LED light source chips installed on the second light emitting surface 2 form a light emitting area, and the light emitting area is in a circular shape.

Therefore, in the multicolor LED light source module of the present embodiment, the outermost LED light source chip in the first light emitting surface 1 of the substrate 8 is all inscribed on the edge of the circular light emitting area, so as to form a circular illumination spot, and the uniformity of the spot is better. In addition, a plurality of cold white light LED chips 3 and a plurality of warm white light LED chips 4 are arranged on the first light emitting surface 1, a plurality of red light LED chips 5, a plurality of green light LED chips 6 and a plurality of blue light LED chips 7 are arranged on the second light emitting surface 2, and the plurality of red light LED chips 5, the plurality of green light LED chips 6 and the plurality of blue light LED chips 7 are distributed in a staggered mode, so that the color mixing is more uniform, and the phenomenon that light spots of various colors are not uniform when a multicolor light source module is arranged in a light transmission shell is reduced.

It should be noted that the LED light source chip may further include six or more LED light source chips, and the color LED chips are not limited to red LED chips, green LED chips and blue LED chips, but also may be combined with other LED light source chips of different colors, specifically selected and set according to the needs of the actual situation, that is, a plurality of color LED chips are equally distributed on the annular area, the color LED chips in the second light emitting surface 2 have uniform light spots, and the arrangement of the warm white LED chips 4 and the cool white LED chips 3 distributed in a staggered manner in rows on the first light emitting surface 1 is matched, so that the color of the whole light source module is uniformly mixed.

Further, a plurality of cold white LED chips 3 are electrically connected in series; a plurality of warm white LED chips 4 are electrically connected in series; the red LED chips 5 are electrically connected in series; the green light LED chips 6 are electrically connected in series; a plurality of blue light LED chips 7 are electrically connected in series; namely, the LED light source chips of the same color are electrically connected in series.

The cold white LED chips 3, the warm white LED chips 4, the red LED chips 5, the green LED chips 6 and the blue LED chips 7 are electrically connected in parallel, that is, the LED light source chips with different colors are electrically connected in parallel.

On the basis of the structure, the LED light source chips with the same color are electrically connected in series, so that the currents of the LED light source chips with the same color are equal; the LED light source chips with different colors are electrically connected in parallel, the currents among the LED light source chips with different colors are unequal, and the working voltages among the LED light source chips with different colors are equal, so that the electric power of the LED light source chips can be controlled, the LED light source chips can keep the same electric power, the brightness of each LED light source chip with various colors can be kept the same, the LED light source chips with various colors can be lightened, the uniformity of light spots is good, and the lighting effect is good.

Furthermore, the number of the plurality of cold white LED chips 3 is set to be N1, and the working rated current of the cold white LED chips 3 is A1; the number of the warm white LED chips 4 is set to be N2, and the working rated current of the warm white LED chips 4 is A2; the number of the red light LED chips 5 is set to be N3, and the working rated current of the red light LED chips 5 is A3; the number of the green light LED chips 6 is set to be N4, and the working rated current of the green light LED chips 6 is A4; the number of the blue LED chips 7 is set to be N5, and the working rated current of the blue LED chips 7 is A5; and the quantity relation and the operation rated current relation of the plurality of LED light source chips are as follows:

N1＝N2；N1＝(16/3)*N3；N1＝8*N4；N1＝8*N5；

A1＝A2；A1＝(3/16)*A3；A1＝(1/8)*A4；A1＝(1/8)*A5。

on the basis of the structure, the number and the working rated current of the LED light source chips arranged on the substrate 8 are controlled, so that the control of the working voltage of the LED light source chips with different colors is realized. The relationship between the working voltage U and the working rated current A is as follows: and U = A R, R is the resistance of the LED light source chip. And the relationship between the electric power P and the operating voltage U and the operating rated current A is as follows: p = a × U.

Because the LED light source chips with the same color are electrically connected in series, the working current passing through each LED light source chip with the same color is equal, and because the resistances of the LED light source chips with the same color are equal, according to the formula: u = a × R, the operating voltage of each LED light source chip of the same color is consistent, and according to the formula: p = a × U shows that the operating power of each LED light source chip of the same color is the same, and therefore the brightness generated by each LED light source chip of the same color is the same.

Setting the working rated voltage of the plurality of cold white light LED chips 3 as U1 and the working power as P1; the working rated voltage of the plurality of warm white LED chips 4 is set as U2, and the working power is P2; setting the working rated voltage of the plurality of red light LED chips 5 as U3 and the working power as P3; setting the working rated voltage of the green light LED chips 6 as U4 and the working power as P4; the working rated voltage of the blue LED chips 7 is set to be U5, and the working power is P5. The LED light source chips with different colors are electrically connected in parallel, and in the parallel circuit, the voltages at different positions are equal, that is, U1= U2= U3= U4= U5.

Therefore, the power P = N × a × U of the LED light source chip. According to the formula, the working power P1= N1 × A1 × U1 of the cold white LED chip 3; the working power of the warm white LED chip 4 is P2= N2 A2U 2= P1; the operating power of the red LED chip 5 is P3= N3 × A3 × U3= (3/16) × N1 (16/3) × A1 × U1= P1; the operating power of the green LED chip 6 is P4= N4 × A4 × U4= (1/8) N1 × 8 × a1 × U1= P1; the operating power of the blue LED chip 7 is P5= N5 × A5 × U5= (1/8) N1 × 8 × a1 × U1= P1; as a result, P1= P2= P3= P4= P5.

It can be known from the above calculation that the operating powers of the LED light source chips of different colors are also the same, and therefore the luminances of the colors generated by the LED light source chips of different colors are the same, so that the colors of the LEDs of different colors are more uniformly mixed after the LEDs of different colors are lit, thereby reducing the problems of poor uniformity of light spots and poor illumination effect.

Of course, on the basis of the structure of the LED light source chips with more colors, only the working power of each group of colors needs to be the same, and the brightness of the colors generated by the LED light source chips with different groups of colors is the same, so as to reduce the problem of poor spot uniformity.

Further, as shown in fig. 1, at least two circles of a plurality of LED light source chips are distributed on the second light emitting surface 2, specifically, at least two circles of a plurality of red LED chips 5, a plurality of green LED chips 6 and a plurality of blue LED chips 7 are distributed from inside to outside, and at least one green LED chip 6 is distributed at an adjacent position of one red LED chip 5, that is, at least one green LED chip 6 is distributed on the left side or the right side of the red LED chip 5.

On the basis of the above structure, in a color light source, in order to achieve a high level of uniformity of combined light in a HIS mode (Hue-Saturation-brightness), one of the main problems to be overcome is non-uniformity of combined light of red light and green light, so that in order to enable red light and green light to be combined more uniformly, when LED light source chips are arranged, the red light and the green light are adjacently arranged, so that light of two colors from a light emitting point has a mixed intersection, and finally, the output combined light has better uniformity.

Further, as shown in fig. 1, the second light emitting surface 2 is provided with a plurality of RGB LED light source chips distributed in two circles, and the LED light source chips are located in the first circle of the first inner side of the plurality of red LED chips 5, the plurality of green LED chips 6 and the plurality of blue LED chips 7, and the first arrangement group of each group is a first arrangement group of red LED chips 5, green LED chips 6 and blue LED chips 7, and is uniformly distributed on the second light emitting surface 2 at an annular interval.

On the basis of the structure, because the homogeneity at facula edge is the hardest to mix, so when arranging LED light source chip, be close to the region at facula edge more, the colour of its adjacent LED light source chip can not be repeated, otherwise will lead to the facula of this region to the colour of repeated arranging, consequently in the first circle of the inboard of second light emitting area 2, through according to a ruddiness LED chip 5, the order of a green glow LED chip 6 and a blue light LED chip 7 for first group of arranging carries out the annular and arranges, and set up the first group of arranging of multiunit in the first circle of inboard, thereby make the homogeneity of the light of different colours better.

It should be noted that in an actual situation, other manners may also be adopted as the first arrangement group, for example, one red LED chip 5, one blue LED chip 7, and one green LED chip 6 are used as the first arrangement group, as long as the colors of the adjacent LED light source chips are not repeated, and the arrangement of the LED light source chips may be selected and set according to the needs of the actual situation.

Further, as shown in fig. 1, in the first peripheral circle of the plurality of red LED chips 5, the plurality of green LED chips 6, and the plurality of blue LED chips 7, two red LED chips 5, one green LED chip 6, and one blue LED chip 7 are used as a second arrangement group, and each second arrangement group is uniformly distributed on the second light emitting surface 2 at an annular interval; the second two ruddiness LED chips 5 of arranging the group are adjacent with the green glow LED chip 6 of the adjacent first row of cloth group, and in this embodiment, the second two ruddiness LED chips 5 of arranging the group and a green glow LED chip 6 of first correspond the setting, and is the same, and the green glow LED chip of the second row of cloth group corresponds the setting with the ruddiness LED chip of first row of cloth group, and arranges the blue light LED chip of group and the blue light LED chip of first row of cloth group at the second and correspond the setting.

On the basis of the above structure, in a color light source, in a HIS mode (Hue-Saturation-brightness), the uniformity of the combined light can reach a higher level, and one of the main problems to be overcome is the non-uniform problem of the combined light of red light and green light, so that in order to make the combined light of red light and green light more uniform, two red LED chips 5 on the outer ring and one green LED chip 6 on the inner ring are adjacently arranged, so that the lights of the two colors are mixed and intersected at the light emitting point, and finally the uniformity of the output combined light is better.

And the blue light LED chips of the second arrangement group and the blue light LED chips of the first arrangement group are correspondingly arranged, namely, the blue light LED chips of the two arrangement groups can uniformly combine light on the second light-emitting surface.

It should be noted that the arrangement mode of the second arrangement group is not fixed, and the arrangement mode of the second arrangement group can be adjusted correspondingly according to the arrangement of the LED light source chips of the first arrangement group, so that the light combination uniformity of the red light and the green light is better, and therefore, in an actual situation, the arrangement mode can be set according to the self requirement.

Further, on the first light emitting surface 1, a plurality of cool white LED chips 3 are distributed in a staggered manner every two rows and a plurality of warm white LED chips 4 are distributed in a staggered manner every two rows.

On the basis of the structure, the cold white LED chips 3 and the warm white LED chips 4 are arranged in a staggered mode, so that the situation that the color is too heavy in a certain area and uneven in color mixing caused by that the arrangement of the lamp beads with the same color is too dense is reduced.

It should be noted that there are various staggered arrangement modes of the cold white LED chips 3 and the warm white LED chips 4, for example, each row of cold white LED chips 3 and each row of warm white LED chips 4 may be distributed in a staggered manner, and as long as the cold white LED chips 3 and the warm white LED chips 4 are staggered, the situation that the color of a certain region is too much due to the arrangement of the LED chips of the same color in the region is reduced. The LED light source chips of the first light emitting surface 1 may be selected and arranged according to the needs of actual situations.

Further, in the present embodiment, the cold-white LED chip wiring positive electrode 31, the warm-white LED chip wiring positive electrode 41, the red LED chip wiring positive electrode 51, the green LED chip wiring positive electrode 61, and the blue LED chip wiring positive electrode 71 are distributed on the side of the substrate 8 outside the second light emitting surface 2; and the cold white LED chip wiring negative electrode 32, the warm white LED chip wiring negative electrode 42, the red LED chip wiring negative electrode 52, the green LED chip wiring negative electrode 62, and the blue LED chip wiring negative electrode 72 are distributed on the other side of the substrate 8 outside the second light emitting surface 2, that is, the LED chip wiring positive electrodes are all disposed on the same side of the substrate 8, and the LED chip wiring negative electrodes are all disposed on the other side of the substrate 8.

On the basis of the structure, the anode is arranged on one side of the substrate 8, the cathode is arranged on the other side of the substrate 8, and wiring is carried out in the process, so that the installation can be more convenient and orderly.

In the case of the example 2, the following examples are given,

on the basis of embodiment 1, in this embodiment, on the basis that the adopted LED chips are the plurality of red LED chips 5, the plurality of green LED chips 6, and the plurality of blue LED chips 7, twelve blue LED chips 7 may be specifically adopted, and the twelve blue LED chips 7 are annularly arranged on the second light emitting surface 2, and six LED chips are arranged inside and outside.

Eighteen red light LED chips 5 are adopted, and eighteen red light LED chips 5 are annularly arranged on the second light-emitting surface 2, six red light LED chips 5 are arranged on the inner side, twelve red light LED chips 5 are arranged on the outer side, and the red light LED chips 5 arranged on the outer side are pairwise in one group, and the red light LED chips 5 on the outer side and the red light LED chips 5 on the inner side are staggered mutually.

Twelve green light LED chips 6 are adopted, the twelve green light LED chips 6 are annularly arranged on the second light emitting surface 2, six green light LED chips are respectively arranged on the inner side and the outer side, the green light LED chip 6 on the inner side is adjacent to the red light LED chip 5 on the inner side, the green light LED chip 6 on the outer side is adjacent to the red light LED chip 5 on the outer side, and the green light LED chip 6 on the inner side is adjacent to the red light LED chip which is a group in pairs on the outer side, so that the green light and the red light can be uniformly mixed.

Ninety-six warm white light LED chips 4 are adopted, and the ninety-six warm white light LED chips 4 are arranged in a row in the first light emitting face 1, which is ten rows in total, and the first two warm white light LED chips 4 in each row are inscribed in a circle of the first light emitting face 1.

Ninety-six cold white light LED chips 3 are adopted, and the ninety-six cold white light LED chips 3 are arranged in the first light emitting surface 1 in rows, which are eight rows in total, and the first two cold white light LED chips 3 of each row are inscribed with the circle of the first light emitting surface 1.

Every two rows of warm white LED chips 4 and every two rows of cold white LED chips 3 are distributed in a staggered manner, so that the warm white light and the cold white light on the first light emitting face 1 can be well mixed in color.

In the case of the example 3, the following examples are given,

on the basis of example 1, further,

in this embodiment, the size of the red LED chip 5 is 0.95mm by 0.95mm; the green light LED chip 6 and the blue light LED chip 7 are both 0.98mm by 0.98mm; the cold white LED chips 3 and the warm white LED chips 4 are 0.825mm by 0.825mm in size.

Since the larger the size of the chip is in the actual working process of the LED chip, the larger the corresponding working rated current of the chip is, the largest driving current passing through the LED light source chip can be set to be 1 to 2 amperes by setting the size of the LED light source chip to be the corresponding size in this embodiment, so that the light emitting efficiency of the LED light source chip is improved as much as possible to provide sufficient luminous flux. And under this size, the production technology of LED light source chip is ripe, and the yield is high, and low cost makes the volume of the even mixed light polychrome light source module dwindle moreover, and cost reduction.

In the case of the example 4, the following examples are given,

on the basis of the

above embodiments

1, 2 and 3, there is also provided an illumination device, which includes a light-transmitting casing and the above multi-color light source module for uniformly mixing light, and the above multi-color LED light source module is installed in the light-transmitting casing. Therefore, the lighting device can realize uniform light mixing, and has small volume and low cost.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The multicolor light source module for uniformly mixing light comprises a substrate (8) and a plurality of LED light source chips, wherein the LED light source chips are arranged on the substrate (8); the LED light source comprises a plurality of LED light source chips, a plurality of LED light source chips and a plurality of LED light source chips, wherein the LED light source chips comprise a plurality of cold white LED chips (3), a plurality of warm white LED chips (4) and a plurality of color LED chips;

the substrate (8) is provided with a first light emitting surface (1) and a second light emitting surface (2), and the first light emitting surface (1) is circular; the second light-emitting surface (2) is annular and surrounds the first light-emitting surface (1);

the plurality of cold white LED chips (3) and the plurality of warm white LED chips (4) are distributed on the first light emitting face (1) in a row; the plurality of cold white LED chips (3) and the plurality of warm white LED chips (4) are distributed on the first light emitting face (1) in a staggered manner; the cold white light LED chips (3) at the head and tail ends of each row of cold white light LED chips (3) are inscribed in the circle of the first light emitting surface (1); the warm white LED chips (4) at the head and tail ends of each row of warm white LED chips (4) are inscribed in a circle of the first light emitting surface (1);

the plurality of colored LED chips are annularly and crossly distributed on the second light-emitting surface (2).

2. The homogeneously light-mixed multicolor light source module according to claim 1, wherein said plurality of colored LED chips comprises a plurality of red LED chips (5), a plurality of green LED chips (6) and a plurality of blue LED chips (7); a plurality of ruddiness LED chip (5), a plurality of green glow LED chip (6) and a plurality of blue light LED chip (7) are the annular and distribute in second light emitting area (2), a plurality of ruddiness LED chip (5), a plurality of green glow LED chip (6) and a plurality of blue light LED chip (7) crisscross distribution.

3. The uniformly light-mixing multicolor light source module according to claim 2, wherein said plurality of cold white LED chips (3) are electrically connected in series; the plurality of warm white LED chips (4) are electrically connected in series; the plurality of red LED chips (5) are electrically connected in series; the green LED chips (6) are electrically connected in series; the blue LED chips (7) are electrically connected in series;

the plurality of cold white LED chips (3), the plurality of warm white LED chips (4), the plurality of red LED chips (5), the plurality of green LED chips (6) and the plurality of blue LED chips (7) are electrically connected in parallel.

4. The uniformly light-mixing multicolor light source module according to claim 3, wherein the number of said plurality of cold white LED chips (3) is N1, and the operating rated current of said cold white LED chips (3) is A1; the number of the warm white LED chips (4) is N2, and the working rated current of the warm white LED chips (4) is A2; the number of the red light LED chips (5) is N3, and the working rated current of the red light LED chips (5) is A3; the number of the green light LED chips (6) is N4, and the working rated current of the green light LED chips (6) is A4; the number of the blue LED chips (7) is N5, and the working rated current of the blue LED chips (7) is A5;

the N1= N2; the N1= (16/3) × N3; n1=8 × N4; n1=8 × N5;

said A1= A2; the A1= (3/16) × A3; the A1= (1/8) × A4; the A1= (1/8) × A5.

5. The multicolor light source module for uniform light mixing according to claim 2, wherein at least two circles of the red light LED chips (5), the green light LED chips (6) and the blue light LED chips (7) are distributed on the second light emitting surface (2) from inside to outside; at least one green LED chip (6) is distributed at the adjacent position of one red LED chip (5).

6. The multicolor light source module for uniform light mixing according to claim 5, wherein one red light LED chip (5), one green light LED chip (6) and one blue light LED chip (7) are used as a first arrangement group in the first ring of the red light LED chips (5), the green light LED chips (6) and the blue light LED chips (7) which are positioned at the inner side, and the first arrangement group in each group is uniformly distributed on the second light emitting surface (2) at an annular interval.

7. The multicolor light source module for uniform light mixing according to claim 6, wherein two red light LED chips (5), one green light LED chip (6) and one blue light LED chip (7) are used as the second arrangement group in the first peripheral ring of the red light LED chips (5), the green light LED chips (6) and the blue light LED chips (7), and the second arrangement group in each group is uniformly distributed on the second light emitting surface (2) at annular intervals.

8. The multicolor light source module for uniform light mixing according to claim 7, wherein the two red LED chips (5) of the second arrangement group are disposed corresponding to the green LED chips (6) of the first arrangement group; the blue light LED chips (7) of the second arrangement group are arranged corresponding to the blue light LED chips (7) of the first arrangement group; and the green LED chips (6) of the second arrangement group are arranged corresponding to the red LED chips (5) of the first arrangement group.

9. The multicolor light source module with uniform light mixing according to claim 2, wherein a cold-white LED chip connection anode (31), a warm-white LED chip connection anode (41), a red LED chip connection anode (51), a green LED chip connection anode (61) and a blue LED chip connection anode (71) are distributed on one side of the substrate (8) outside the second light emitting surface (2); and a cold white light LED chip wiring negative electrode (32), a warm white light LED chip wiring negative electrode (42), a red light LED chip wiring negative electrode (52), a green light LED chip wiring negative electrode (62) and a blue light LED chip wiring negative electrode (72) are distributed on the other side of the substrate (8) outside the second light emitting surface (2).

10. The multicolor light source module with uniform light mixing according to claim 1, wherein every two rows of the plurality of cold white LED chips (3) and every two rows of the plurality of warm white LED chips (4) are distributed on the first light emitting face (1) in a staggered manner.

11. A lighting device comprising a light-transmissive housing and a uniformly mixed multicolor light source module as claimed in any of claims 1 to 10 mounted therein.