CN112555703B

CN112555703B - Lamp set

Info

Publication number: CN112555703B
Application number: CN202011229266.5A
Authority: CN
Inventors: 莫怀友; 凡凯
Original assignee: Aputure Imaging Industries Co Ltd
Current assignee: Shenzhen Aitushi Innovation Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-11-19
Anticipated expiration: 2040-11-06
Also published as: CN112555703A

Abstract

The invention relates to the technical field of lighting, and provides a lamp which comprises a substrate, a plurality of light-emitting units and a control module, wherein each light-emitting unit comprises a white light source and a plurality of RGB light sources; the control module comprises a white light control module and an RGB control module, and can enable the light-emitting unit to generate illumination meeting various occasions; the lamp beads of the RGB light source are arranged adjacently in pairs, so that light can be well mixed; the plurality of RGB light sources are uniformly arranged on the periphery of the white light source, so that the plurality of RGB light sources in a single light-emitting unit and the white light source can be uniformly mixed; and a plurality of light-emitting units are uniformly distributed at intervals along the circumferential direction of the central area, and when the control module adjusts the white light source and the RGB light source, the lamp can emit uniform mixed light.

Description

Lamp set

Technical Field

The invention relates to the technical field of lighting, and particularly provides a lamp.

Background

In a shooting scene, a shooting object generally needs to be subjected to supplementary lighting, and generally white light is used for lighting, but some scenes need white light lighting and often need light color lighting with different colors in order to support the scene light color atmosphere, and because the white light LED spectrum is not a strictly continuous spectrum, part of color LEDs need to be lightened to improve color rendering when a special object is lighted, the supplementary lighting lamp not only needs to have a white light lighting function, but also needs to have a color and color temperature adjusting function. And the light filling lamp with higher power at present comprises a large number of LEDs, and the phenomenon of uneven light mixing such as light spots and color rings easily occurs after light mixing among the color LEDs and between the color LEDs and the white LEDs, so that the light filling effect is poor.

Disclosure of Invention

The invention aims to provide a lamp which can adjust color temperature and color and can mix light uniformly.

In order to achieve the purpose, the invention adopts the technical scheme that: a light fixture, comprising:

a substrate having a central region and a mounting region disposed around the central region;

the light-emitting units are arranged in the mounting area and are uniformly distributed at intervals along the circumferential direction of the central area, each light-emitting unit comprises a white light source and a plurality of RGB light sources uniformly arranged on the periphery of the white light source, each white light source comprises a plurality of white light beads for emitting white light, each RGB light source comprises a red light bead, a green light bead and a blue light bead, and the red light beads, the green light beads and the blue light beads are arranged adjacently; and

the control module comprises a white light control module and an RGB control module, wherein the white light control module is used for controlling the on-off and the driving power of the white light source, and the RGB control module is used for controlling the on-off and the driving power of the RGB light source;

the substrate is provided with a first virtual circle and a second virtual circle, the first virtual circle and the second virtual circle both take the center of the substrate as the circle center, at least one lamp bead of the RGB light source is arranged on the first virtual circle, at least two lamp beads of the RGB light source are arranged on the second virtual circle, and the white light source is arranged in the area between the first virtual circle and the second virtual circle.

Preferably, the lamp beads of the single light-emitting unit are arranged to form an equilateral triangle array, the equilateral triangle array comprises N rows of lamp beads which are parallel to each other and are gradually increased in number from the center of the substrate to the edge direction of the substrate, the number of the lamp beads of one row of the lamp beads close to the center of the substrate is one, and the number of the lamp beads of one row of the lamp beads close to the edge of the substrate is N.

Preferably, two rows of lamp beads close to the center of the substrate in the equilateral triangle array are set as each lamp bead of the same RGB light source; two lamp beads at one end of a first row of lamp beads in the direction from the edge to the center of the substrate and one lamp bead at the same end of a second row of lamp beads in the direction from the edge to the center of the substrate are set as each lamp bead of the same RGB light source; two lamp beads at the other end of the first row of lamp beads in the direction from the edge of the substrate to the center and one lamp bead at the same end of the second row of lamp beads in the direction from the edge of the substrate to the center are set as each lamp bead of the same RGB light source; and other lamp beads in the N rows of lamp beads are set as the white light lamp beads.

Preferably, be close to one row of lamp pearl at base plate center with be close to the lamp pearl at both ends all establishes in one row of lamp pearl at base plate edge red light lamp pearl.

Preferably, the number of the light emitting units is six.

Preferably, the white light bulbs of the same light-emitting unit are all cold white light bulbs emitting cold white light or all warm white light bulbs emitting warm white light, and the white light sources of the plurality of light-emitting units are alternately arranged to emit cold white light and warm white light.

Preferably, the total number of the warm white light bulbs is 2-3 times of the total number of the RGB light sources; the total number of the cold white light lamp beads is 2-3 times of the total number of the RGB light sources.

Preferably, the white light beads of a single light-emitting unit are connected in series to form a bead group, the red light beads of the plurality of light-emitting units are connected in series to form a bead group, the green light beads of the plurality of light-emitting units are connected in series to form a bead group, and the blue light beads of the plurality of light-emitting units are connected in series to form a bead group.

Preferably, the RGB control module includes a red control module, a green control module and a blue control module, the red control module is configured to control on/off and driving power of a lamp bead group in which the red light lamp bead is located, the green control module is configured to control on/off and driving power of a lamp bead group in which the green light lamp bead is located, and the blue control module is configured to control on/off and driving power of a lamp bead group in which the blue light lamp bead is located; the white light control module comprises a plurality of sub white light control modules, and the sub white light control modules respectively control the on-off of the white light sources of the light emitting units and the magnitude of the driving power.

Preferably, a routing channel extending from the center of the substrate to the edge of the substrate is formed between the adjacent light emitting units on the substrate, and the routing channel is used for wiring of the light emitting units adjacent to the routing channel.

The invention has the beneficial effects that: the control module of the lamp comprises a white light control module for controlling the on-off and driving power of the white light source and an RGB control module for controlling the on-off and driving power of the RGB light source, wherein the white light control module drives the white light source to generate cold white light illumination, warm white light illumination or color temperature illumination between cold white and warm white. The RGB control module can drive the RGB light source to generate atmosphere illumination with required colors according to use requirements. And because the spectrum of the white light bead is not a continuous spectrum in a strict sense, when a special object is illuminated, the color rendering property can be improved by illuminating part of the colored beads, and when the control module simultaneously drives the white light source 21 and the RGB light source 22, the white light illumination with higher brightness can be generated, the illumination with the improved white light color rendering shape can be generated, and the light supplement requirements in various occasions can be met. In the lamp provided by the invention, the red light beads, the green light beads and the blue light beads in the RGB light source are arranged adjacently in pairs, so that the three beads of the RGB light source can be well mixed; the plurality of RGB light sources in the light-emitting unit are uniformly arranged on the periphery of the white light source, so that the plurality of RGB light sources in the single light-emitting unit and the white light source can be uniformly mixed; its a plurality of luminescence units are laid along central area's circumference even interval for also can evenly mix the light between each luminescence unit, control module is through adjusting white light source and RGB light source when the colour or the colour temperature of regulation lamps and lanterns like this, and lamps and lanterns homoenergetic are sent even and are mixed the light, avoid forming spot or color ring, and the light filling effect is better.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic plan view of a light emitting module according to an embodiment of the present invention;

fig. 2 is a schematic plan view of a light emitting unit according to an embodiment of the present invention;

fig. 3 is a schematic plan view of an arrangement of a white light bead and an RGB light source provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a position where a light emitting unit is disposed on a substrate according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a substrate; 11-a central region; 12-a mounting area; 13-a first virtual circle; 14-a second virtual circle; 15-routing channel; 2-a light-emitting unit; 21-a white light source; 211-white light lamp bead; 22-RGB light source; 221-red light beads; 222-green light bead; 223-blue light lamp beads; 231-a first row of beads; 232-second row of beads; 233-third row of lamp beads; 234-fourth row of beads; 235-fifth row of lamp beads; 236-sixth row of beads.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The present embodiment provides a lamp, please refer to fig. 1 to 3, including a substrate 1, a plurality of light emitting units 2, and a control module (not shown). Base plate 1 has central zone 11 and the installation region 12 that sets up around this central zone 11, be provided with a plurality of luminescence unit 2 on the installation region 12, a plurality of luminescence unit 2 are laid along the even interval of central zone 11's circumference, luminescence unit 2 includes white light source 21 and evenly sets up in a plurality of RGB light source 22 of white light source 21 periphery, white light source 21 includes that a plurality of sends white light's white light lamp pearl 211, RGB light source 22 is including the red light lamp pearl 221 who sends red light, send green light's green glow pearl 222 and send blue light's blue light lamp pearl 223, this red light lamp pearl 221, green glow pearl 222 and blue light lamp pearl 223 adjacent setting. The control module comprises a white light control module for controlling the on-off of the white light source 21 and the magnitude of the driving power and an RGB control module for controlling the on-off of the RGB light source 22 and the magnitude of the driving power. The substrate 1 is provided with a first virtual circle 13 and a second virtual circle 14 which both use the center of the substrate 1 as the center of a circle, in each light-emitting unit 2, the first virtual circle 13 is provided with one lamp bead of at least one RGB light source 22, the second virtual circle 14 is provided with one lamp bead of at least two RGB light sources 22, and a white light source 21 is arranged in the area between the first virtual circle 13 and the second virtual circle 14.

It should be noted that the substrate 1 may be made of metal or ceramic, and the shape of the substrate 1 may be circular or square, and may be specifically set as required. The central region 11 of the substrate 1 may be a circular region located at the center of the substrate 1, the mounting region 12 may be an annular region disposed around the circular central region 11, and the plurality of light emitting units 2 are disposed in the annular mounting region 12 and uniformly spaced along the circumferential direction of the central region 11.

The light emitting unit 2 includes a set of white light sources 21 and a plurality of RGB light sources 22 disposed around the white light sources 21. Wherein the single group of white light sources 21 comprises a plurality of white light beads 211 emitting white light. The white light beads 211 can be warm white light beads emitting warm white light, and can also be cool white light beads emitting cool white light. The color temperature of the warm white light is between 3300K and 5300K, the light color is soft and yellow, so that people have pleasant, comfortable and peaceful feelings, and the warm white light is suitable for places such as shops, hospitals, offices, restaurants, dining rooms, waiting rooms and the like. The cold white light has a color temperature above 5300K, bright brightness and blue light color. The light source is close to natural light, has bright feeling, concentrates people, and is suitable for places such as offices, meeting rooms, classrooms, drawing rooms, design rooms, reading rooms of libraries, exhibition windows and the like. Each RGB light source 22 includes a red light bead 221 emitting red light, a green light bead 222 emitting green light, and a blue light bead 223 emitting blue light, wherein the red light wavelength range can be 600-720 nm, the green light wavelength range can be 510-530 nm, and the blue light wavelength range can be 430-480 nm. Two or three of the red light, the green light, and the blue light are mixed at different luminances, and light of other colors such as yellow light, cyan light, magenta light, and white light can be obtained. In fig. 1 to 4, warm white light beads, cool white light beads, red light beads, green light beads, and blue light beads are denoted by NW, W, R, G, and B, respectively.

The control module comprises a white light control module (not shown) and an RGB control module (not shown), the white light control module can control the on/off of the white light source 21 and the magnitude of the driving power, and the RGB control module can control the on/off of the RGB light source 22 and the magnitude of the driving power. The white light control module driving the white light source 21 can produce cool white illumination, warm white illumination, or color temperature illumination between cool white and warm white. The RGB control module drives the RGB light sources 22 according to the usage requirements to generate the desired color of the ambience lighting. And because the spectrum of the white light bead 211 is not a strictly continuous spectrum, and the color rendering property can be improved by lighting part of the colored beads when a special object is lighted, when the white light source 21 and the RGB light source 22 are driven simultaneously, not only can white light illumination with higher brightness be generated, but also illumination with the improved white light color rendering property can be generated.

The control module of the lamp provided by the embodiment comprises a white light control module for controlling the on-off of the white light source and the driving power and an RGB control module for controlling the on-off of the RGB light source and the driving power, and the light supplementing requirements in various occasions can be met. The red light beads 221, the green light beads 222 and the blue light beads 223 of the RGB light source 22 are adjacently arranged in pairs in an aggregation mode, so that the three beads of the RGB light source 22 can be well mixed; the plurality of RGB light sources 22 in the light emitting unit 2 are uniformly arranged on the periphery of the white light source 21, so that the plurality of RGB light sources 22 in a single light emitting unit 2 and the white light source 21 can be uniformly mixed; and a plurality of light-emitting units 2 are uniformly arranged at intervals along the circumferential direction of the central region 11, so that light can be uniformly mixed among the light-emitting units 2. Therefore, the control module adjusts the white light source 21 and/or the RGB light source 22 so that the lamp can emit uniform mixed light under various lighting modes when the color or the color temperature of the lamp is changed, spots or color rings are prevented from being formed, and the light supplementing effect is better.

In another embodiment of the present application, please refer to fig. 1 to 3, the lamp beads of a single light emitting unit 2 are arranged in an equilateral triangle array, the equilateral triangle array includes N rows of lamp beads that are parallel to each other and increase in number, the number of the lamp beads of a row of lamp beads near the center of the substrate 1 is one, and the number of the lamp beads of a row of lamp beads near the edge of the substrate 1 is N.

Further, two rows of lamp beads close to the center of the substrate 1 are set as each lamp bead of the same RGB light source 22; two lamp beads at one end of a first row of lamp beads in the direction from the edge of the substrate 1 to the center of the substrate 1 and one lamp bead at the same end of a second row of lamp beads in the direction from the edge of the substrate 1 to the center are set as each lamp bead of the same RGB light source 22; two lamp beads at the other end of the first row of lamp beads in the direction from the edge of the substrate 1 to the center and one lamp bead at the same end of the second row of lamp beads in the direction from the edge of the substrate 1 to the center are set as each lamp bead of the same RGB light source 22; and other lamp beads in the N rows of lamp beads are set as white light lamp beads 211.

It can be understood that all the lamp beads of a single light-emitting unit 2 are jointly arranged to form an equilateral triangle array, the distances between any two adjacent lamp beads in the equilateral triangle array are equal, the equilateral triangle array comprises N rows of parallel lamp beads, the first row of lamp beads and the second row of lamp beads … … are sequentially arranged from the center of the substrate 1 to the edge direction of the substrate 1, and N is a positive integer greater than or equal to 4. Wherein the lamp pearl quantity of first row of lamp pearl is one, and the lamp pearl quantity of second row of lamp pearl is two, analogizes in proper order, and the lamp pearl quantity of Nth row of lamp pearl is N. The three lamp beads included in the first row of lamp beads and the second row of lamp beads are respectively set as red lamp beads 221, green lamp beads 222 and blue lamp beads 223 of the same RGB light source 22; two lamp beads on the outermost side of one end of the Nth row of lamp beads and one lamp bead on the outermost side of the same end of the N-1 th row of lamp beads are respectively set as a red lamp bead 221, a green lamp bead 222 and a blue lamp bead 223 of the same RGB light source 22; two lamp beads on the outermost side of the other end of the nth row of lamp beads and one lamp bead on the outermost side of the same end of the N-1 th row of lamp beads are respectively set as a red lamp bead 221, a green lamp bead 222 and a blue lamp bead 223 of the same RGB light source 22. And the other lamp beads in the third row to the Nth row are all set as white light lamp beads 211. Wherein each lamp pearl of RGB light source 22 can follow clockwise setting in order, also can follow anticlockwise setting in order.

Referring to fig. 1 and 4, a plurality of light-emitting units 2 may be disposed on a substrate 1 at the following positions, where the substrate 1 has an x axis and a y axis as shown in fig. 4, a lamp bead of one light-emitting unit 2 near the center of the substrate 1 is located on a first virtual circle 13 with a radius r1, that is, a first row of lamp beads is located on the first virtual circle 13 with a radius r1, a second row of lamp beads to an nth row of lamp beads are respectively located on a virtual straight line which forms a 150 ° angle with the positive direction of the x axis, two outermost lamp beads of the nth row are both located on a second virtual circle 14, and the second virtual circle 14 and the first virtual circle 13 are concentric circles using the center of the substrate 1 as the center. At this time, the other light emitting cells 2 may be obtained by rotating the light emitting cells 2 around the center of the substrate 1 by a predetermined angle value calculated by dividing 360 ° by the number of the light emitting cells 2.

As an implementation manner, please refer to fig. 1 to 3, the equilateral triangle array includes six rows of lamp beads, a first row of lamp beads 231, a second row of lamp beads 232, a third row of lamp beads 233, a fourth row of lamp beads 234, a fifth row of lamp beads 235, and a sixth row of lamp beads 236 are sequentially arranged from the center of the substrate 1 to the edge of the substrate 1, the six rows of lamp beads are parallel to each other, and the number of the six rows of lamp beads sequentially increases from the center of the substrate 1 to the edge of the substrate 1, wherein the number of the first row of lamp beads 231, i.e., the row of lamp beads close to the center of the substrate 1, is one, the number of the sixth row of lamp beads 236, i.e., the row of lamp beads close to the edge of the substrate 1, is six, and the number of the second row of lamp beads 232, the third row of lamp beads 233, the fourth row of lamp beads 234, and the fifth row of lamp beads 235 is two, three, four, and five respectively. The light-emitting units 2 can be arranged on the substrate 1 according to the following positions, the substrate 1 has an x axis and a y axis as shown in fig. 4, the center of the first row of light beads 231 is located on the first virtual circle 13 with the radius r1, the second row of light beads 232, the third row of light beads 233, the fourth row of light beads 234, the fifth row of light beads 235 and the sixth row of light beads 236 are respectively located on a virtual straight line which forms 150 degrees with the positive direction of the x axis, the two outermost light beads of the sixth row are located on the second virtual circle 14, and at this time, the other light-emitting units 2 can be obtained by rotating the light-emitting units 2 by integral multiples of 60 degrees around the center of the substrate 1.

The single light emitting unit 2 includes a white light source 21 and three RGB light sources, and is arranged according to the following positional relationship, and three light beads included in a first row of light beads 231 and a second row of light beads 232 in the six rows of light beads are respectively set as a red light bead 221, a green light bead 222, and a blue light bead 223 of the first RGB light source. Two lamp beads on the outermost side of one end of the sixth row of lamp beads 236 and one lamp bead on the outermost side of the same end of the fifth row of lamp beads are respectively set as the red lamp bead 221, the green lamp bead 222 and the blue lamp bead 223 of the second RGB light source. Two lamp beads on the outermost side of the other end of the sixth row of lamp beads 236 and one lamp bead on the outermost side of the same end of the fifth row of lamp beads are respectively set as the red lamp bead 221, the green lamp bead 222 and the blue lamp bead 223 of the third RGB light source. And other lamp beads in the third row to the sixth row are all set as white light lamp beads 211.

In the lamp provided by the embodiment, the lamp beads of a single light-emitting unit 2 are arranged in an equilateral triangle array, and three lamp beads included in the first row of lamp beads and the second row of lamp beads are set as three lamp beads of the same RGB light source; two lamp beads on the outermost side of one end of the Nth row of lamp beads and one lamp bead on the outermost side of the same end of the (N-1) th row of lamp beads are set as three lamp beads of the same RGB light source; two lamp beads on the outermost side of the other end of the Nth row of lamp beads and one lamp bead on the outermost side of the same end of the (N-1) th row of lamp beads are set as three lamp beads of the same RGB light source. That is, the three RGB light sources 22 included in the light emitting unit 2 are uniformly disposed on the periphery of the white light source 21, and the three RGB light sources 22 can keep the same distance between each two RGB light sources, so that the RGB light sources 22 and the white light source 21 in the same light emitting unit 2 can be uniformly mixed. And six rows of lamp beads form an equilateral triangle array, and the distance between any two adjacent lamp beads is equal, thereby being beneficial to the heat dissipation of each lamp bead. In addition, when the number of the lamp beads needs to be increased or decreased properly to change the power of the lamp, the power of the lamp can be changed conveniently only by correspondingly changing the radiuses of the two first virtual circles 13 and/or the two second virtual circles 14 and correspondingly increasing or decreasing the number of the lamp beads. For example, when the quantity of lamp beads needs to be increased to increase the power of the lamp, the radius of the second virtual circle 14 can be increased, and more rows of lamp beads are arranged on one side, close to the edge of the substrate 1, of the original lamp beads, so that great convenience is brought to production and design.

In another embodiment of the present application, please refer to fig. 1 to 3, a row of beads near the center of the substrate 1 and beads at both ends of the row of beads near the edge of the substrate 1 are set as red beads 221.

It is worth explaining that, compared with lamp beads of other colors, the thermal sensitivity of the red light lamp beads 221 is higher, that is, the brightness of the red light lamp beads 221 is obviously reduced along with the rise of the temperature, and the lamp beads at the outermost sides of the two ends of the row of lamp beads close to the center of the substrate 1 and the row of lamp beads close to the edge of the substrate 1 are set as the red light lamp beads 221, that is, the red light lamp beads 221 are arranged in a region with better heat dissipation, so that the heat dissipation of the red light lamp beads 221 is facilitated, and the brightness of each lamp bead is balanced.

In another embodiment of the present application, referring to fig. 2 and 3, the number of the light emitting units 2 is less than or equal to six.

It is to be noted that the light emitting units 2 may be provided in three, six, or the like, and may be provided as needed. Because the lamp bead of single luminescence unit 2 arranges and is equilateral triangle array, when the quantity of luminescence unit 2 is less than or equal to six, the area of central zone 11 can set for littleer than installation area 12 area, and when each luminescence unit 2 adopted the mode of gathering to set up, can not hinder each other yet, is favorable to mixing light. When the number of the light emitting units 2 is greater than six, as the number of the light emitting units 2 increases, the area of the central region 11 needs to be increased accordingly, and the arrangement of the light emitting units 2 is more dispersed, which is not favorable for light mixing. Preferably, the number of the light emitting units 2 is set to six. When the number of the light emitting units 2 is six, the area of the central area is small, and meanwhile, all lamp beads in the annular light emitting area are distributed most uniformly, and the light mixing effect is better.

In the lamp provided by the embodiment, the number of the light emitting units 2 is less than or equal to six, and the central region 11 can be set to be a region with a smaller area, so that the light emitting units 2 can be arranged in an annular light emitting region between the first virtual circle 13 and the second virtual circle 14 on the substrate 1 in a gathering manner, and a better light mixing effect is achieved; and when RGB light sources are distributed on the inner side and the outer side of the annular light emitting area, the phenomenon that only central colored light of the substrate 1 is concentrated or edge colored light is concentrated can be avoided, so that the lamp has a better light mixing effect.

In another embodiment of the present application, referring to fig. 1 to 4, the white light beads 211 of the same light emitting unit 2 are all cool white beads emitting cool white light or all warm white beads emitting warm white light, and the white light sources 21 of the plurality of light emitting units 2 are alternately arranged to emit cool white light and warm white light.

Further, the total number of the warm white light bulbs is 2-3 times of the total number of the RGB light sources 22; the total amount of the cold white light bulbs is 2-3 times of the total amount of the RGB light sources 22.

It should be noted that the single white light source 21 may be configured as a warm white light bead or a cool white light bead, or may be configured as a mixture of the warm white light bead and the cool white light bead. In this embodiment, the white light beads 211 of the same light emitting unit 2 are all cool white beads emitting cool white light or all warm white beads emitting warm white light, and the white light sources 21 of the plurality of light emitting units 2 are alternately arranged to emit cool white light and warm white light. When the total number of the light emitting units 2 is an even number, the adjacent light emitting units 2 emit white lights with different color temperatures, that is, the white light beads 211 of one of the two adjacent light emitting units 2 are all set as cold white light beads emitting cold white light, and the white light beads 211 of the other light emitting unit 2 are all set as warm white light beads emitting warm white light. When the number of the light emitting units 2 is odd, only one group of the adjacent two light emitting units 2 emits white light with the same color temperature, and the other group of the adjacent two light emitting units 2 all emit white light with different color temperatures. By adopting the mode of arranging among the phases, the control module adjusts the cold white light lamp beads and the warm white light lamp beads, so that a better light mixing effect can be achieved when the color temperature of the lamp is adjusted.

In addition, because the plurality of RGB light sources 22 of the light-emitting unit 2 are uniformly arranged at the periphery of the white light source 21, if the three RGB light sources 22 of the light-emitting unit 2 are respectively arranged at three corners of the equilateral triangle array 23, when the power of the lamp is increased and the number of the white light beads 211 is large, the distance between the RGB light source 22 far away from the center of the substrate 1 and the RGB light source 22 close to the center of the substrate 1 is increased, which is not beneficial to light combination, therefore, the number of the white light beads 211 should be controlled within a certain range, and is determined according to different light combination effects, the number of the same kind of white light beads 211 is 2-3 times the number of all the RGB light sources 22 of the lamp, that is, the number of the warm white light beads of the lamp is 2-3 times the number of the RGB light sources 22 of the lamp; the number of the cold white light beads of the lamp is 2-3 times of the number of the RGB light sources 22 of the lamp. As a specific implementation manner, the number of the light-emitting units 2 is six, each light-emitting unit 2 includes 12 white light beads 211 and 3 RGB light sources 22, wherein all beads of the white light sources 21 of the three light-emitting units 2 are set as warm white light beads, all beads of the white light sources 21 of the other three light-emitting units 2 are set as cool white light beads, the total number of the warm white light beads of the lamp is 36, the total number of the cool white light beads is 36, and the number of the RGB light sources 22 of the lamp is 18. At this time, the number of the warm white light beads and the number of the cold white light beads are 2 times of the number of the RGB light sources 22 of the lamp, and the distances between the RGB light sources 22 far away from the center of the substrate 1 and the RGB light sources 22 near the center of the substrate 1 in the three RGB light sources 22 are kept small, so that light can be combined well.

In another embodiment of the present application, the white light beads 211 of a single light emitting unit 2 are connected in series to form a bead group, and the white light beads 211 of the same type are connected in parallel between a plurality of light emitting units 2. The red light beads 221 of the plurality of light emitting units 2 are connected in series to form a bead group, the green light beads 222 of the plurality of light emitting units 2 are connected in series to form a bead group, and the blue light beads 223 of the plurality of light emitting units 2 are connected in series to form a bead group.

Further, the RGB control module (not shown) includes a red light control module (not shown), a green light control module (not shown), and a blue light control module (not shown), the white light control module (not shown) includes a plurality of sub-white light control modules, wherein the red light control module is configured to control the on/off and the driving power of the lamp bead group where the red light lamp bead 221 is located, the green light control module is configured to control the on/off and the driving power of the lamp bead group where the green light lamp bead 222 is located, the blue light control module is configured to control the on/off and the driving power of the lamp bead group where the blue light lamp bead 223 is located, and the plurality of sub-white light control modules respectively control the on/off and the driving power of the white light source 21 of the plurality of light emitting units 2.

It should be noted that the white light beads 211 of a single light emitting unit 2 are connected in series to form a bead group emitting white light, and the white light beads 211 of the same type among a plurality of light emitting units 2 may or may not be connected in parallel. All the red light lamp beads 221 of the plurality of light-emitting units 2 are connected in series jointly to form a lamp bead group emitting red light, all the green light lamp beads 222 of the plurality of light-emitting units 2 are connected in series jointly to form a lamp bead group emitting green light, all the blue light lamp beads 223 of the plurality of light-emitting units 2 are connected in series jointly to form a lamp bead group emitting blue light, namely, the lamp beads in the white light source 21 of a single light-emitting unit 2 are connected in series separately to form the lamp bead group, all the red light lamp beads 221 of the lamp are connected in series to form the lamp bead group emitting red light, all the green light lamp beads 222 of the lamp are connected in series to form the lamp bead group emitting green light, and all the blue light lamp beads 223 of the lamp are connected in series to form the lamp bead group emitting blue light. The plurality of sub white light control modules are respectively electrically connected with the white light sources 21 of the plurality of light emitting units 2, and each sub white light control module controls one corresponding white light source 21; the red light control module is electrically connected with the red light emitting lamp bead group; the green light control module is electrically connected with the lamp bead group emitting green light; the blue light control module is electrically connected with the lamp bead group which emits blue light.

When the driving is performed specifically, all the red light beads 221 of the plurality of light emitting units 2 are located in the same loop, and the red light control module controls the on-off and the magnitude of the driving power. All the green light beads 222 of the plurality of light emitting units 2 are located in the same loop, and the on-off and driving power are controlled by the green light control module. All the blue light beads 223 of the plurality of light emitting units 2 are located in the same loop, and the blue light control module controls the on-off and the magnitude of the driving power. All white light beads 211 of the same light emitting unit 2 are independently located in a loop, and the plurality of white light control modules respectively control the white light sources 21 of the plurality of light emitting units 2, that is, each white light control module controls the on-off and the driving power of the white light source 21 of one light emitting unit 2.

When cold white lighting is needed, the white light control module drives all cold white light bulbs to be lightened, and other bulb lamps are turned off; when warm white lighting is needed, the white light control module drives to light the corresponding warm white light lamp beads, and other lamp beads are turned off; when the cold white and warm white color temperature illumination is needed, the white light control module drives all the cold white light beads and the warm white light beads with proper power and adjusts the power ratio of the cold white light beads and the warm white light beads to adjust to the proper color temperature; when atmosphere illumination is needed, the red light control module, the green light control module and the blue light control module can respectively adjust the power of the red light emitting lamp bead group, the green light emitting lamp bead and the blue light emitting lamp bead according to the R, G, B light brightness ratio needed by the specific light color to mix the needed light color; when light with partial color needs to be added in white light illumination, the white light control module drives the corresponding white light lamp beads 211, and the RGB control module drives the lamp bead group emitting red light, the lamp beads emitting green light and the lamp beads emitting blue light to be mixed; when higher white light illumination is needed, the RGB control module drives the lamp bead group emitting red light, the lamp beads emitting green light and the lamp beads emitting blue light to synthesize corresponding white light so as to improve the white light brightness of the whole lamp.

In the lamp provided by the embodiment of the invention, the control module comprises a plurality of sub-white light control modules for controlling the on-off and driving power of the white light unit 21, a red light control module for controlling the lamp bead group emitting red light, a green light control module for controlling the lamp bead group emitting green light and a blue light control module for controlling the lamp bead group emitting blue light, and the color temperature and the color of the lamp can be adjusted by simultaneously adjusting one or more of the plurality of lamp bead groups emitting white light, the lamp bead group containing red light, the lamp bead group containing green light and the lamp bead group containing blue light, so that the lamp can meet the light supplement requirements in various scenes.

In another embodiment of the present application, referring to fig. 1 to 3, a routing channel 15 is disposed between the adjacent light emitting units 2 of the substrate 1 along a direction from the center of the substrate 1 to the edge of the substrate 1, and the routing channel 15 is used for routing the series-parallel circuit of the light emitting units 2 adjacent to the routing channel.

It should be noted that, the white light beads 211 of each white light source 21 of a single light emitting unit 2 are connected in series to form a bead group, all the red light beads 221 on the substrate 1 need to be connected in series to form a bead group, all the green light beads 222 on the substrate 1 need to be connected in series to form a bead group, all the blue light beads 223 on the substrate 1 need to be connected in series to form a bead group, and each bead group is electrically connected to the corresponding control module, because beads in the same bead group are dispersed in the center of the substrate 1 and the edge of the substrate 1, a large number of wires need to be arranged on the substrate 1, and wire channels 15 are left between each light emitting unit 2, which is not only beneficial to the electrical connection of each bead of each light emitting unit 2, can effectively avoid the crossing of the wires, but also can be convenient for the heat dissipation of the beads, and enhance the safety performance of the lamp.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A light fixture, comprising:

a substrate (1) having a central region (11) and a mounting region (12) disposed around the central region (11);

the light-emitting units (2) are arranged in the mounting area (12) and are uniformly distributed at intervals along the circumferential direction of the central area (11), each light-emitting unit (2) comprises a white light source (21) and a plurality of RGB light sources (22) uniformly arranged on the periphery of the white light source (21), each white light source (21) comprises a plurality of white light beads (211) emitting white light, each RGB light source (22) comprises a red light bead (221), a green light bead (222) and a blue light bead (223), and the red light beads (221), the green light beads (222) and the blue light beads (223) are arranged in a pairwise adjacent manner; and

the control module comprises a white light control module for controlling the on-off and the driving power of the white light source (21) and an RGB control module for controlling the on-off and the driving power of the RGB light source (22);

the lamp beads of the single light-emitting unit (2) are distributed to form an equilateral triangle array, the equilateral triangle array comprises N rows of lamp beads which are parallel to each other and are gradually increased in number from the center of the substrate (1) to the edge direction of the substrate (1), the number of the lamp beads of one row close to the center of the substrate (1) is one, and the number of the lamp beads of one row close to the edge of the substrate (1) is N; the three corners of the equilateral triangle array are respectively provided with the RGB light sources (22).

2. The luminaire of claim 1, wherein: two rows of lamp beads close to the center of the substrate (1) in the equilateral triangle array are set as each lamp bead of the same RGB light source (22); two lamp beads at one end of a first row of lamp beads in the direction from the edge to the center of the substrate (1) and one lamp bead at the same end of a second row of lamp beads in the direction from the edge to the center of the substrate (1) are set as each lamp bead of the same RGB light source (22); two lamp beads at the other end of the first row of lamp beads in the direction from the edge to the center of the substrate (1) and one lamp bead at the same end of the second row of lamp beads in the direction from the edge to the center of the substrate (1) are set as each lamp bead of the same RGB light source (22); and other lamp beads in the N rows of lamp beads are set as the white light lamp beads (211).

3. The luminaire of claim 2, wherein: be close to one row of lamp pearl at base plate (1) center with be close to the lamp pearl at both ends all establishes in one row of lamp pearl at base plate (1) edge red light lamp pearl (221).

4. The luminaire of claim 1, wherein: the number of the light emitting units (2) is less than or equal to six.

5. The luminaire of claim 1, wherein: the white light lamp beads (211) of the same light-emitting unit (2) are all cold white light lamp beads emitting cold light white or all warm white light lamp beads emitting warm white, and the white light sources (21) of the light-emitting units (2) are alternately arranged to emit cold white light and warm white light.

6. The luminaire of claim 5, wherein: the total number of the warm white light bulbs is 2-3 times of the total number of the RGB light sources (22); the total quantity of the cold white light lamp beads is 2-3 times of the total quantity of the RGB light sources (22).

7. The luminaire of claim 1, wherein: the white light lamp beads (211) of the single light-emitting unit (2) are connected in series to form a lamp bead group, the red light lamp beads (221) of the light-emitting units (2) are connected in series to form a lamp bead group, the green light lamp beads (222) of the light-emitting units (2) are connected in series to form a lamp bead group, and the blue light lamp beads (223) of the light-emitting units (2) are connected in series to form a lamp bead group.

8. The luminaire of claim 7, wherein: the RGB control module comprises a red light control module, a green light control module and a blue light control module, the red light control module is used for controlling the on-off and the driving power of a lamp bead group where the red light lamp beads (221) are located, the green light control module is used for controlling the on-off and the driving power of a lamp bead group where the green light lamp beads (222) are located, and the blue light control module is used for controlling the on-off and the driving power of a lamp bead group where the blue light lamp beads (223) are located; the white light control module comprises a plurality of sub white light control modules, and the sub white light control modules respectively control the on-off of the white light sources (21) of the light emitting units (2) and the magnitude of driving power.

9. A light fixture as recited in any one of claims 1-8, wherein: the substrate (1) forms a wiring channel (15) extending from the center of the substrate (1) to the edge direction of the substrate (1) between the adjacent light-emitting units (2), and the wiring channel (15) is used for wiring of the light-emitting units (2).