CN215489148U - Light mixing device - Google Patents

Abstract

The embodiment of the application belongs to the field of lighting lamps and relates to a light mixing device. The light mixing device comprises: the lamp comprises a lamp panel, wherein a plurality of uniformly distributed lamp beads and optical devices arranged along the light emitting direction of the lamp beads are arranged on the lamp panel, and each lamp bead is electrically connected with the lamp panel; each lamp bead comprises a plurality of light-emitting chips, and the colors of light rays emitted by two adjacent light-emitting chips are different; at least two adjacent light emitting chips in two adjacent lamp beads emit light with the same color; light rays emitted by two light emitting chips at the same arrangement position in two adjacent lamp beads are superposed on a target surface to realize light mixing. This application need not to set up extra mixed light structure, only can realize adjustable colour temperature mixed light through optical device accuse light, and mix the light effectual, has still reduced the loss of light energy simultaneously, has improved overall efficiency.

Description

Light mixing device

Technical Field

The application relates to the technical field of lighting fixtures, in particular to a light mixing device.

Background

As shown in fig. 1 and 2, the existing light mixing device 100 mainly comprises a lamp panel 110, two optical devices 120 and two dual-color temperature lamp beads 130, where the two dual-color temperature lamp beads 130 each include two light emitting chips 131 emitting warm white light and two light emitting chips 132 emitting cool white light, and the chips with the same color temperature are respectively fixed on a pair of opposite vertex angles and arranged in a matrix. The two-color temperature lamp beads 130 of the existing light mixing device 100 are generally arranged in a manner of being copied in the same direction parallel to the lamp panel 110, and the part of the light emitted by the two-color temperature lamp beads 130 which does not pass through the light reflecting cup can directly irradiate on a target surface due to uncontrollable; as shown in fig. 1, light rays a and c emitted by the light emitting chips 131 and 131 ″ emitting warm white light and light rays b and d emitted by the light emitting chips 132 and 132 ″ emitting cold white light respectively irradiate two ends of the target surface and cannot be superposed, so that secondary light spots with uneven color temperature distribution are formed on the target surface; as shown in fig. 3 and 4, it can be seen from the illuminance diagram and the color temperature graph that the variation range of the color temperature value is large in the place of the edge of the secondary light spot, no matter in the X axis or the Y axis, which also illustrates that the light mixing effect is not good in the edge of the secondary light spot, and the color temperature distribution is not uniform.

In order to make the color temperature distribution of the secondary light spots uniform, the conventional light mixing device usually adds a frosted lens on the light reflecting cup for mixing light, but when the light passes through the frosted lens, part of energy is lost, so that the overall efficiency of the light mixing device is low; the frosted lens has a strong diffuse reflection effect, so that the glare value of the light mixing device is high, and discomfort of human eyes can be caused when the frosted lens is used; in addition, after the frosted lens is added, the beam angle and the light spot of the original reflection cup can be damaged.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a light mixing device aiming at the defects in the prior art, and aims to solve the problems of low light mixing efficiency and poor light mixing effect in the prior art.

In order to solve the above technical problem, an embodiment of the present application provides a light mixing device, which adopts the following technical solutions:

a light mixing device comprising: the lamp comprises a lamp panel, wherein a plurality of uniformly distributed lamp beads and optical devices arranged along the light emitting direction of the lamp beads are arranged on the lamp panel, and each lamp bead is electrically connected with the lamp panel;

each lamp bead comprises a plurality of light-emitting chips, and the colors of light rays emitted by two adjacent light-emitting chips are different;

at least two adjacent light emitting chips in two adjacent lamp beads emit light with the same color;

light rays emitted by two light emitting chips at the same arrangement position in two adjacent lamp beads are superposed on a target surface to realize light mixing.

Further, the types of the light emitting chips are at least two of a blue light chip, a white light chip, a red light chip and a green light chip.

Specifically, each lamp bead comprises two light-emitting chips, and the types of the two light-emitting chips are any two of the blue light chip, the white light chip, the red light chip and the green light chip.

Specifically, the two light emitting chips are a blue light chip and a white light chip respectively, and in the two lamp beads which are adjacently arranged in the same direction parallel to the lamp panel, the light emitting chips in one lamp bead are sequentially arranged according to the sequence of the blue light chip and the white light chip, and the light emitting chips in the other lamp bead are sequentially arranged according to the sequence of the white light chip and the blue light chip;

light rays emitted by the blue light chips and the white light chips at the same arrangement position in the two adjacent lamp beads are superposed on a target surface to realize light mixing.

Specifically, each lamp bead comprises four light-emitting chips, and the types of the four light-emitting chips are any two of the blue light chip, the white light chip, the red light chip and the green light chip.

Specifically, the four light-emitting chips are two blue light chips and two white light chips respectively, and in the two adjacent light beads arranged in the same direction parallel to the lamp panel, the light-emitting chips in one light bead are arranged in a matrix in the clockwise direction from the first position in such a manner that the blue light chips and the white light chips are alternately distributed, and the light-emitting chips in the other light bead are arranged in a matrix in the clockwise direction from the position corresponding to the first position in such a manner that the white light chips and the blue light chips are alternately distributed;

light rays emitted by the blue light chips and the white light chips at the same arrangement position in the two adjacent lamp beads are superposed on a target surface to realize light mixing.

Specifically, each lamp bead all includes four luminescence chips, four luminescence chips's kind is respectively blue light chip, white light chip, ruddiness chip and green glow chip.

Specifically, in the same direction parallel to the lamp panel, the light emitting chips in one of the two lamp beads are arranged in a matrix in the clockwise direction from the first position in a manner that the red light chips, the green light chips, the white light chips and the blue light chips are alternately distributed, and the light emitting chips in the other lamp are arranged in a matrix in the clockwise direction from the position corresponding to the first position in a manner that the blue light chips, the red light chips, the green light chips and the white light chips are alternately distributed;

light rays emitted by the blue light chip, the white light chip, the red light chip and the green light chip which are arranged at the same position in the two adjacent lamp beads are superposed on a target surface to realize light mixing.

Specifically, the optical device is a reflective cup, or a lens, or a reflective cup and a light guide column.

Specifically, the lamp plate is a PCB board.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects: it can be seen from the illuminance diagram and the color temperature curve diagram that the change range of the color temperature value is very small no matter in the X axis or the Y axis at the edge of the auxiliary light spot, which indicates that the light mixing can be performed in the application, the color temperature distribution at the edge of the auxiliary light spot is uniform, and the color temperature values of the whole auxiliary light spot and the middle part are basically consistent, i.e. the auxiliary light spot becomes more uniform. The utility model provides a simple manufacture only installs a lamp pearl after the lamp plate, installs again after rotating another lamp pearl, makes the light colour that sends of the luminescent chip of same permutation position in two lamp pearls of adjacent setting inequality can. The color temperature adjustable light mixing structure does not need to be provided with an additional light mixing structure (such as a frosted lens), and the color temperature adjustable light mixing can be realized only by controlling light through an optical device, so that compared with the prior art, the color temperature adjustable light mixing structure reduces the loss of light ray energy and improves the overall efficiency; the light does not pass through the light mixing structure, the original optical design is not damaged, the diffuse reflection effect is not generated, and the glare value is reduced; because an additional light mixing structure is not required to be added, the manufacturing cost is saved while the glare is reduced; the application realizes the purpose that the light angle and the light spot of the optical device are not influenced.

Drawings

In order to illustrate the present application or prior art more clearly, a brief description of the drawings needed for the description of the embodiments or prior art will be given below, it being clear that the drawings in the following description are some embodiments of the present application and that other drawings can be derived from them by a person skilled in the art without inventive effort.

FIG. 1 is a schematic diagram of arrangement of two-color temperature lamp beads of a light mixing device in the prior art;

FIG. 2 is a schematic view of light emitted by a dual-color temperature lamp bead of a light mixing device in the prior art;

FIG. 3 is a graph of the illuminance of a light spot formed by a light mixing device in the prior art;

FIG. 4 is a graph of color temperature of a light spot formed by a light mixing device in the prior art;

fig. 5 is a schematic diagram of a lamp bead arrangement of the light mixing device provided in the embodiment of the present application;

fig. 6 is a schematic view of light rays emitted by a lamp bead of the light mixing device provided in the embodiment of the present application;

fig. 7 is an illuminance chart of light spots formed by the light mixing device according to the embodiment of the present application;

FIG. 8 is a graph showing a color temperature of a light spot formed by the light mixing device according to the embodiment of the present disclosure;

fig. 9 is a schematic arrangement diagram of each lamp bead in the light mixing device provided in the embodiment of the present application including two light emitting chips;

fig. 10 is a schematic arrangement diagram of each lamp bead in the light mixing device provided in the embodiment of the present application including four light emitting chips;

fig. 11 is another arrangement schematic diagram that each lamp bead in the light mixing device provided by the embodiment of the application includes four light emitting chips.

Detailed Description

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 application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

Lux: the illumination intensity refers to the energy of visible light received per unit area, and is abbreviated as illumination intensity, unit Lux or Lx.

CCT: the abbreviation of corrected color temperature means the correlated color temperature, when the color of the light emitted by a light source is close to the color of the black body radiating at a certain temperature, the temperature of the black body is called the correlated color temperature of the light source, and the unit is K.

The embodiment of the present application provides a light mixing device, as shown in fig. 5 and 6, the light mixing device 200 includes: the lamp panel 210 is provided with a plurality of uniformly arranged lamp beads 220 and optical devices 230 arranged along the light emitting direction of the lamp beads, and each lamp bead 220 is electrically connected with the lamp panel 210;

each lamp bead 220 comprises a plurality of light-emitting chips 221, and the colors of light rays emitted by two adjacent light-emitting chips 221 are different;

in the two adjacent lamp beads 220, at least two adjacent light-emitting chips 221 emit light with the same color;

light rays emitted by the two light emitting chips 221 at the same arrangement position in the two adjacent lamp beads 220 are overlapped on a target surface to realize light mixing.

The working principle of the light mixing device 200 provided by the embodiment of the application is as follows: the light emitted by the light emitting chips 221 does not pass through the optical device 230, and can directly irradiate on the target surface due to uncontrollable light, but because the colors of the light emitted by two adjacent light emitting chips 221 in each lamp bead 220 are different in the application, and because the colors of the light emitted by at least two adjacent light emitting chips 221 in the two adjacent lamp beads 220 are the same, the colors of the light emitted by the light emitting chips 221 in the two adjacent lamp beads 220 at the same arrangement position are different, so that the light emitted by the two light emitting chips 221 in the two adjacent lamp beads 220 at the same arrangement position are complementary in position, and the light emitted by the two light emitting chips 221 in the two adjacent lamp beads 220 at the same arrangement position is overlapped on the target surface to realize light mixing, and the auxiliary light spots with uniform color temperature distribution are formed on the target surface.

As shown in fig. 6, a light ray f emitted by the light emitting chip 221 on the left side of one lamp bead 220 is a cold white light with a low color temperature, a light ray e emitted by the light emitting chip 221' on the right side is a warm white light with a high color temperature, a light ray h emitted by the light emitting chip 221 ″ on the left side of the other lamp bead 220' adjacent to the lamp bead is a warm white light with a high color temperature, a light ray g emitted by the light emitting chip 221' ″ on the right side is a cold white light with a low color temperature, the light rays f and h emitted by the light emitting chips 221, 221 ″ are irradiated on the same end of the target surface to be overlapped to realize light mixing, the light rays e and g emitted by the light emitting chips 221', 221' ″ are irradiated on the same end of the target surface to be overlapped to realize light mixing, and a secondary light spot with uniform color temperature distribution is formed on the target surface.

The beneficial effects of the mixed light device that this application embodiment provided are: as shown in fig. 7 and 8, it can be seen from the illuminance diagram and the color temperature graph that the variation range of the color temperature value is small in the place of the edge of the secondary light spot, no matter in the X axis or the Y axis, which indicates that the present application can mix light, the color temperature distribution at the edge of the secondary light spot is uniform, and the color temperature values of the whole secondary light spot and the middle part are substantially consistent, that is, the secondary light spot becomes relatively uniform. The lamp plate is simple to manufacture, and after one lamp bead 220 is installed on the lamp plate, the other lamp bead 220' is installed after being rotated, so that the light color emitted by the light emitting chips 221 at the same arrangement positions in the two adjacent lamp beads 220 is different. The color temperature adjustable light mixing structure does not need to be provided with an additional light mixing structure (such as a frosted lens), and the color temperature adjustable light mixing can be realized only by controlling light through the optical device 230, so that compared with the prior art, the color temperature adjustable light mixing structure reduces the loss of light ray energy and improves the overall efficiency; the light does not pass through the light mixing structure, the original optical design is not damaged, the diffuse reflection effect is not generated, and the glare value is reduced; because an additional light mixing structure is not required to be added, the manufacturing cost is saved while the glare is reduced; the application realizes the purpose that the light angle and the light spot of the optical device are not influenced.

In addition, the lamp beads 220 used in the light mixing device 200 may be a dual color temperature lamp bead and an RGBW lamp bead, the dual color temperature lamp bead includes a light emitting chip emitting warm white light and a light emitting chip emitting cool white light, or the dual color temperature lamp bead includes two light emitting chips emitting warm white light and two light emitting chips emitting cool white light, the chips with the same color temperature are respectively fixed on a pair of opposite vertex angles and arranged in a matrix, or the RGBW lamp bead includes a blue light chip, a white light chip, a red light chip and a green light chip and arranged in a matrix; the application provides a mix light device 200 is applicable to two colour temperature lamp pearls or RGBW lamp pearl, only needs two lamp pearls 220 of adjacent setting, and the light colour that has two luminescent chip 221 that close to at least and send is the same, and the light colour that 220 looks co-arrangement position's luminescent chip 221 sent is inequality in two lamp pearls of adjacent setting, can realize mixing light, makes this application be applicable to multiple lamp pearl 220.

The secondary light spot in this embodiment refers to: there is no spot of light on the target surface that is controlled by the optics 230.

Further, the kinds of the light emitting chips 221 are at least two of a blue chip 222, a white chip 223, a red chip 224 and a green chip 225. Any two of the blue chip 222, the white chip 223, the red chip 224, and the green chip 225 may be combined to different colors.

As shown in fig. 9, specifically, each of the lamp beads 220 includes two light emitting chips 221, and the types of the two light emitting chips 221 are any two of the blue light chip 222, the white light chip 223, the red light chip 224, and the green light chip 225.

Specifically, the two light emitting chips 221 are a blue light chip 222 and a white light chip 223, and in the two adjacent light beads 220 in the same direction parallel to the lamp panel 210, the light emitting chips 221 in one light bead 220 are sequentially arranged according to the order of the blue light chip 222 and the white light chip 223, and the light emitting chips 221 in the other light bead 220 are sequentially arranged according to the order of the white light chip 223 and the blue light chip 222;

light rays emitted by the blue light chips 222 and the white light chips 223 in the two adjacent lamp beads 220 at the same arrangement position are overlapped on a target surface to realize light mixing.

Certainly, not only the two light emitting chips 221 described in this embodiment are respectively the blue light chip 222 and the white light chip 223, but also the two light emitting chips are respectively the red light chip 224 and the white light chip 223, the two light emitting chips are respectively the blue light chip 222 and the red light chip 224, and so on, and only the color of the light emitted by the adjacent light emitting chips 221 in the two adjacent lamp beads 200 needs to be the same.

As shown in fig. 10, specifically, each of the lamp beads 220 includes four light emitting chips 221, and the types of the four light emitting chips 221 are any two of a blue light chip 222, a white light chip 223, a red light chip 224, and a green light chip 225.

Specifically, the four light emitting chips 221 are two blue light chips 222 and two white light chips 223, and in the two adjacent light beads 220 in the same direction parallel to the lamp panel 210, the light emitting chips 221 in one light bead 220 are arranged in a matrix in the clockwise direction from the first position in a manner that the blue light chips 222 and the white light chips 223 are alternately distributed, and the light emitting chips 221 in the other light bead 220 are arranged in a matrix in the clockwise direction from the position corresponding to the first position in a manner that the white light chips 223 and the blue light chips 222 are alternately distributed;

light rays emitted by the blue light chips 222 and the white light chips 223 in the two adjacent lamp beads 220 at the same arrangement position are overlapped on a target surface to realize light mixing.

Of course, not only the four light emitting chips 221 described in this embodiment are respectively two blue light chips 222 and two white light chips 223, but also the four light emitting chips 221 are respectively two red light chips 224 and two white light chips 223, the four light emitting chips 221 are respectively two blue light chips 222 and two red light chips 224, and the like, and only the color of light emitted by the adjacent light emitting chips 221 in the two adjacent lamp beads 220 needs to be the same.

As shown in fig. 11, specifically, each of the lamp beads 220 includes four light emitting chips 221, and the types of the four light emitting chips 221 are the blue light chip 222, the white light chip 223, the red light chip 224, and the green light chip 225, respectively.

Specifically, in the same direction parallel to the lamp panel 210, in two of the lamp beads 220 that are adjacently disposed, the light emitting chips 221 in one of the lamp beads 220 are arranged in a matrix from the first position along the clockwise direction in a manner that the red light chips 224, the green light chips 225, the white light chips 223, and the blue light chips 222 are alternately distributed, and the light emitting chips 221 in the other lamp bead 220 are arranged in a matrix from the position corresponding to the first position along the clockwise direction in a manner that the blue light chips 222, the red light chips 224, the green light chips 225, and the white light chips 223 are alternately distributed;

light rays emitted by the blue light chip 222, the white light chip 223, the red light chip 224 and the green light chip 225 which are arranged at the same position in the two adjacent lamp beads 220 are overlapped on a target surface to realize light mixing.

Of course, not only the light emitting chips 221 in one of the light beads 220 described in this embodiment are arranged in a matrix in the clockwise direction from the first position in the manner that the red light chips 224, the green light chips 225, the white light chips 223, and the blue light chips 222 are alternately distributed, but also the light emitting chips 221 in the other light bead 220 are arranged in a matrix in the clockwise direction from the position corresponding to the first position in the manner that the blue light chips 222, the red light chips 224, the green light chips 225, and the white light chips 223 are alternately distributed, and it may also be any arrangement manner, only that in two adjacent light beads 220, at least two adjacent light emitting chips 221 emit light with the same color.

Specifically, the optical device 230 is a reflective cup, a lens, a reflective cup and a light guide pillar. The optical device 230 in this embodiment is not limited to the reflective cup, and is also applicable to an optical device such as a lens or a light guide pillar combined with a reflective cup.

Specifically, the lamp panel 210 is a PCB.

Specifically, the number of the lamp beads 220 is two or more, and at least two lamp beads 220 are needed for realizing light mixing.

Preferably, the number of the lamp beads 220 is even, so that the light mixing effect is better.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (10)

1. A light mixing device, comprising:

the lamp comprises a lamp panel, wherein a plurality of uniformly distributed lamp beads and optical devices arranged along the light emitting direction of the lamp beads are arranged on the lamp panel, and each lamp bead is electrically connected with the lamp panel;

each lamp bead comprises a plurality of light-emitting chips, and the colors of light rays emitted by two adjacent light-emitting chips are different;

at least two adjacent light emitting chips in two adjacent lamp beads emit light with the same color;

light rays emitted by two light emitting chips at the same arrangement position in two adjacent lamp beads are superposed on a target surface to realize light mixing.

2. The light mixing device of claim 1, wherein the light emitting chips are at least two of a blue light chip, a white light chip, a red light chip and a green light chip.

3. The light mixing device of claim 2, wherein each of the lamp beads comprises two light emitting chips, and the two light emitting chips are any two of the blue light chip, the white light chip, the red light chip and the green light chip.

4. The light mixing device according to claim 3, wherein the two light emitting chips are a blue light chip and a white light chip, respectively, and in the two adjacent light beads arranged in the same direction parallel to the lamp panel, the light emitting chips in one light bead are sequentially arranged according to the order of the blue light chip and the white light chip, and the light emitting chips in the other light bead are sequentially arranged according to the order of the white light chip and the blue light chip;

light rays emitted by the blue light chips and the white light chips at the same arrangement position in the two adjacent lamp beads are superposed on a target surface to realize light mixing.

5. The light mixing device of claim 2, wherein each of the lamp beads comprises four light emitting chips, and the four light emitting chips are any two of the blue light chip, the white light chip, the red light chip and the green light chip.

6. The light mixing device according to claim 5, wherein the four light emitting chips are two blue light chips and two white light chips, respectively, and in the same direction parallel to the lamp panel, among two adjacent light beads, the light emitting chips in one light bead are arranged in a matrix in a manner that the blue light chips and the white light chips are alternately distributed clockwise from a first position, and the light emitting chips in the other light bead are arranged in a matrix in a manner that the white light chips and the blue light chips are alternately distributed clockwise from a position corresponding to the first position;

light rays emitted by the blue light chips and the white light chips at the same arrangement position in the two adjacent lamp beads are superposed on a target surface to realize light mixing.

7. The light mixing device of claim 2, wherein each of the lamp beads comprises four light emitting chips, and the four light emitting chips are respectively a blue light chip, a white light chip, a red light chip and a green light chip.

8. The light mixing device according to claim 7, wherein in the same direction parallel to the lamp panel, the light emitting chips in one of the two adjacent lamp beads are arranged in a matrix in an alternating manner of a red light chip, a green light chip, a white light chip and a blue light chip from a first position in a clockwise direction, and the light emitting chips in the other lamp bead are arranged in a matrix in an alternating manner of a blue light chip, a red light chip, a green light chip and a white light chip from a position corresponding to the first position in a clockwise direction;

light rays emitted by the blue light chip, the white light chip, the red light chip and the green light chip which are arranged at the same position in the two adjacent lamp beads are superposed on a target surface to realize light mixing.

9. The light mixing device of claim 1, wherein the optical device is a reflective cup, a lens, or a reflective cup and a light guide.

10. The light mixing device of claim 1, wherein the light panel is a PCB board.

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