CN218383600U

CN218383600U - LED light source module and lighting device

Info

Publication number: CN218383600U
Application number: CN202222188163.XU
Authority: CN
Inventors: 莫怀友
Original assignee: Aputure Imaging Industries Co Ltd
Current assignee: Shenzhen Aitushi Innovation Technology Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-01-24
Anticipated expiration: 2032-08-18

Abstract

The embodiment of the application provides an LED light source module and a lighting device, comprising an LED chip and a condensing lens; the condensing lens comprises a plane and an aspheric surface which are arranged in a back direction; the light emitting surface of the LED chip is opposite to the plane of the condensing lens and is arranged at intervals; the distance between the light emitting surface of the LED chip and the condensing lens is 0.25 mm to 0.45 mm; the edge thickness of the condenser lens is 1.5 mm to 1.7 mm; the curved surface shape of the aspherical surface of the condenser lens is determined by a function. According to the embodiment of the application, the LED light source module with the beam angle of 36-37 degrees is obtained through the aspheric surface with the specific curved surface shape and the condensing lens with the specific edge thickness and the LED chip with the specific position relation with the condensing lens; the LED light source modules emitting warm white, cold white, red light, green light and blue light are dispersedly arranged on the circuit substrate, so that the lighting device with uniform light mixing and improved illumination intensity is obtained.

Description

LED light source module and lighting device

Technical Field

The application relates to the field of lighting, in particular to an LED light source module and a lighting device.

Background

In a shooting scene, a lighting device is often used to illuminate a subject, and the light source of such lighting device may be a tungsten lamp, a fluorescent lamp, an LED, etc., which may include, for example, one or more combinations of colored lights of cold color temperature, warm color temperature, red, green, and blue. When light sources of two or more color temperatures or colors are involved, a diffusion plate or a soft light sheet is often disposed on the light emitting side of the light source in order to make the entire light emission more uniform and soft.

Because the power requirements of the lighting devices are changed along with the difference of shooting scenes, the output of the existing lighting devices with higher power is generally the number and the arrangement area of the light sources of the light source module are simply overlapped, and a soft light sheet or a diffusion plate on the light emitting side is matched.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an LED light source module and a lighting device, and the LED light source module is formed by combining a condensing lens with a specific aspheric surface and edge thickness and an LED chip which keeps a specific position relation with the condensing lens, so that the beam angle of the LED light source module is 36-37 degrees, and further the lighting device is uniform in light mixing and improved in illumination.

The embodiment of the application provides a LED light source module, it includes:

an LED chip and a condenser lens; the condensing lens comprises a plane and an aspheric surface which are arranged in a back direction; the light emitting surface of the LED chip is opposite to the plane of the condensing lens and is arranged at intervals; the distance between the light emitting surface of the LED chip and the condensing lens is 0.25 mm to 0.45 mm; the thickness of the edge of the condensing lens is 1.5 mm to 1.7 mm;

the aspheric design of the condenser lens satisfies the function:

wherein z is the rise value of the aspheric surface of the condenser lens; y is the radial abscissa value of the aspheric surface of the condenser lens, and the value range of y is

The aperture of the condensing lens; r is the curvature radius of the aspheric surface of the condensing lens, and the value range of r is-2.25 mm to-1.95 mm; k is the aspheric coefficient of the condensing lens, and the value range of k is-0.95 to-0.75.

The embodiment of the present application further provides a lighting device, which includes:

a circuit board; and

a light source array including a plurality of LED light source modules;

the LED light source modules comprise a plurality of warm white emitting LED light source modules, a plurality of cold white emitting LED light source modules, a plurality of red light emitting LED light source modules, a plurality of green light emitting LED light source modules and a plurality of blue light emitting LED light source modules; the light source array comprises at least one double-color temperature LED light source module row which is only formed by a plurality of emitting warm white LED light source modules and a plurality of emitting cold white LED light source modules at intervals, the light source array comprises a plurality of double-color temperature color LED light source module rows which are formed by combining any three or more than three of the emitting warm white LED light source modules, the emitting cold white LED light source modules, the emitting red LED light source modules, the emitting green LED light source modules and the emitting blue LED light source modules at intervals, the line number of the double-color temperature color LED light source module row is larger than that of the double-color temperature LED light source module row, and the double-color temperature color LED light source module row is positioned on two sides of the double-color temperature LED light source module row.

According to the embodiment of the application, the LED light source module with the beam angle of 36-37 degrees is obtained through the aspheric surface determined by a specific function, the condensing lens with the specific edge thickness and the LED chip with the specific position relation with the condensing lens.

The lighting device provided by the embodiment of the application, the warm white emitting LED light source modules, the cold white emitting LED light source modules, the red emitting LED light source modules, the green emitting LED light source modules and the blue emitting LED light source modules with beam angles of 36-37 degrees are arranged to form the light source array, so that when the lighting device 40 simultaneously lights a plurality of warm white emitting LED light source modules and a plurality of cold white emitting LED light source modules, or singly lights a plurality of red emitting LED light source modules, or singly lights a plurality of green emitting LED light source modules, or singly lights a plurality of blue emitting LED light source modules, the beam angles of the correspondingly formed color temperature light, red light, green light and blue light are all 36-37 degrees, and because the beam angles of the color temperature light, the red light, the green light and the blue light are basically consistent and in a small-angle range, the lighting device 40 has the effects of uniform light mixing and improved illumination.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural diagram of an LED light source module provided in an embodiment of the present application.

Fig. 2 is a schematic diagram illustrating a positional relationship between a condensing lens and an LED chip in the LED light source module shown in fig. 1.

Fig. 3 is a bottom view of the structure shown in fig. 2 when the light emitting surface of the LED chip is square.

Fig. 4 is a bottom view of the structure shown in fig. 2 when the light emitting surface of the LED chip is circular.

Fig. 5 is a schematic structural diagram of an LED light source module according to an embodiment of the present application.

Fig. 6 is a first structural schematic diagram of an illumination device provided in an embodiment of the present application.

Fig. 7 is a second structural schematic diagram of the lighting device according to the embodiment of the present application.

Fig. 8 is a spatial light intensity distribution diagram of the lighting device shown in fig. 6 after all the red LED light source modules are turned on.

Fig. 9 is a spatial light intensity distribution diagram of the lighting device shown in fig. 6 after the green LED light source modules are fully lighted.

Fig. 10 is a spatial light intensity distribution diagram of the lighting device shown in fig. 6 after all the blue LED light source modules are turned on.

Fig. 11 is a spatial distribution diagram of the spatial luminous intensity of the illumination device shown in fig. 6 after all the warm and cool white LED light source modules are turned on.

Reference numerals are as follows:

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

In the description of the present application, it is to be understood that the terms "first", "second", "third", "fourth", "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. It is also to be understood that the term "plurality" means "at least two". It can be understood that, in the present application, the warm white emitting LED light source module is provided with a warm white LED chip for emitting warm white light; the cold white emitting LED light source module is provided with a cold white LED chip and is used for emitting cold white light; the red light emitting LED light source module is provided with a red light LED chip or a red-green-blue mixed light LED chip and is used for emitting red light; the green light emitting LED light source module is provided with a green light LED chip or a red, green and blue mixed light LED chip and is used for emitting green light; the blue light LED light source module is provided with a blue light LED chip or a red, green and blue mixed light LED chip and is used for emitting blue light.

Referring to fig. 1-2, an embodiment of the present disclosure provides an LED light source module 10, which includes an LED chip 110 and a condensing lens 120. The condenser lens 120 includes a plane 122 and an aspherical surface 124 disposed oppositely; the light emitting surface 112 of the LED chip 110 is opposite to and spaced apart from the plane 122 of the condenser lens 120; the distance d1 between the light emitting surface 112 of the LED chip 110 and the condenser lens 120 is 0.25 mm to 0.45 mm; the edge thickness d2 of the condenser lens 120 is 1.5 mm to 1.7 mm.

The aspheric surface 124 of the condenser lens 120 is designed to satisfy the function:

where z is a rise value of the aspherical surface 124 of the condenser lens 120; y is a radial abscissa of the aspheric surface 124 of the condenser lens 120, and y has a value range of

The aperture of the condenser lens 120; r is the curvature radius of the aspheric surface 124 of the condenser lens 120, and the value range of r is-2.25 mm to-1.95 mm; k is the aspheric surface 124 coefficient of the condenser lens 120, and the value of k ranges from-0.95 to-0.75.

It is understood that when the LED chip 110 is not provided with the condenser lens 120, the lighting model is a lambertian model, and the beam angle of the LED chip 110 is 120 degrees. Illustratively, the condenser lens 120 may be an aspheric plano-convex lens. The function of the aspherical surface 124 of the condenser lens 120 determines the curved surface shape of the aspherical surface 124.

The embodiment of the application obtains the LED light source module 10 with a beam angle of 36 to 37 degrees by the aspheric surface 124 determined by a specific function, the condensing lens 120 with a specific edge thickness, and the LED chip 110 having a specific positional relationship with the condensing lens 120. Therefore, in the embodiment of the present application, the light beam angle of the LED light source module 10 is 36 to 37 degrees by combining the condensing lens 120 having a specific aspheric surface and edge thickness and the LED chip 110 maintaining a specific positional relationship with the condensing lens 120 to form the LED light source module 10.

In some embodiments, referring to fig. 1-3, the light emitting surface 112 is square. Aperture of condenser lens 120

Ratio to inner diameter d3 of light emitting surface 112 is 5. It is understood that when the light emitting surface 112 has a square shape, the inner diameter d3 of the light emitting surface 112, that is, the diameter of the inscribed circle of the light emitting surface 112, and the inner diameter d3 of the light emitting surface 112 is equal to the side length of the light emitting surface 112. Illustratively, the aperture of the condenser lens 120

Is 5 mm; the inner diameter d3 of the light-emitting surface 112 is 1 mm.

In other embodiments, referring to fig. 1-2 and 4, the light emitting surface 112 is circular; aperture of the condenser lens 120

Diameter of light emitting surface 112

Is a ratio of

Illustratively, the aperture of the condenser lens 120

Is 5 mm; diameter of the light emitting surface 112

Is composed of

And (4) millimeter.

Referring to fig. 1, the led light source module 10 further includes a supporting structure 130. The support structure 130 is disposed at one side of the plane 122 of the condenser lens 120. The supporting structure 130 encloses to form an accommodating space 132 for accommodating the LED chip 110. When the LED chip 110 and the supporting structure 130 are disposed on the circuit substrate 20, the supporting structure 130 allows the light-emitting surface 112 of the LED chip 110 to be disposed opposite to and spaced apart from the plane 122 of the condensing lens 120.

Referring to fig. 1, the led light source module 10 further includes a package support 140 and a soldering layer 150.

The package support 140 encloses a reflective cavity 142. The LED chip 110 is disposed in the reflective cavity 142, and an opening of the reflective cavity 142 faces the condenser lens 120. The reflective cavity 142 is used to condense light emitted from the LED chip 110. And is soldered to the circuit board 20 via the solder layer 150. The solder layer 150 may be a solder pad.

The soldering layer 150 is disposed on a side of the package support 140 facing away from the reflective cavity 142, and the soldering layer 150 is used for being soldered to the circuit substrate 20, so as to electrically connect the anode and the cathode of the LED chip 110 to the circuit substrate 20.

Illustratively, the outer diameter of the package support 140 and the outer diameter of the solder layer 150 are smaller than the inner diameter of the support structure 130, such that the support structure 130 is spaced apart from the package support 140 and the solder layer 150. It can be understood that the supporting structure 130, the package support 140 and the soldering layer 150 are disposed at an interval, so that the heat of the LED chip 110 is not directly conducted to the condensing lens 120 through the supporting structure 130, and thus the occurrence of the situation that the optical performance of the condensing lens 120 is changed due to deformation caused by uneven heating can be avoided.

In some embodiments, the LED chips 110 include any one of a warm white LED chip, a cool white LED chip, a red LED chip, a green LED chip, a blue LED chip, or a mixed red, green, and blue LED chip.

It can be understood that the red, green and blue mixed light LED chip is a chip whole formed by packaging a red LED chip, a green LED chip and a blue LED chip. It can also be understood that the red, green and blue mixed light LED chip can emit any one of red, green and blue light alone, any two of red, green and blue light simultaneously, and three of red, green and blue light simultaneously through electric signal control.

Referring to fig. 5, an LED light source module 30 is further provided in the present embodiment, including a circuit substrate 20 and an LED light source module 10. The LED light source module 10 is disposed on the circuit board 20.

In the prior art, in a shooting scene, a lighting device packaged with warm white, cold white, red light, green light and blue light LEDs is often used, and a photographic lighting lamp with a relatively wide color gamut is obtained by combining warm color temperature, cold color temperature, red light, green light and blue light. The existing lighting device usually packages red, green and blue light LED chips on a same support to form a three-in-one color light source, and packages warm white LED chips and cold white LED chips on mutually independent supports to form warm white light source and cold white light source. The lighting device of this structure: when the light of each light source is not directly projected to the irradiated surface through any optical element, the light mixing of the irradiation light spots is more uniform, but the illumination intensity of the irradiated surface is relatively low; a standard lens or a total reflection lens is arranged on one side of the light emitting surface of the light source for condensing, so that although the illumination of the irradiated surface can be improved, the irradiation light spots of the three-in-one color light source can have color layering, so that the mixed light is not uniform; through add even light structure with the printing opacity face of standard lens or total reflection lens, such as dull polish, squama, shine line and compound eye structure, these even light structures pass through the diffuse reflection effect, though can play the inhomogeneous problem of mixed light that eliminates the illumination facula of trinity light source, but also produce a large amount of stray light simultaneously for trinity colored light source and lighting device's illuminance reduces.

In view of the above, referring to fig. 6 and fig. 7, an illumination apparatus 40 including a circuit substrate 20 and a light source array 410 is provided in the embodiment of the present disclosure. The light source array 410 includes a plurality of LED light source modules 10.

The plurality of LED light source modules 10 include a plurality of warm white emitting LED light source modules, a plurality of cold white emitting LED light source modules, a plurality of red light emitting LED light source modules, a plurality of green light emitting LED light source modules, and a plurality of blue light emitting LED light source modules. The light source array 410 includes at least one row 416 of dual color temperature LED light source modules spaced apart by only a plurality of warm-white emitting LED light source modules and a plurality of cold-white emitting LED light source modules. The light source array 410 includes a plurality of rows of two-color temperature color LED light

source module rows

412, 414 that are alternately arranged by any three or more of a plurality of warm white emitting LED light source modules, a plurality of cool white emitting LED light source modules, a plurality of red light emitting LED light source modules, a plurality of green light emitting LED light source modules, and a plurality of blue light emitting LED light source modules. The number of rows of dual color temperature color LED light source module rows 412 is greater than the number of rows of dual color temperature LED light source module rows 416. The dual color temperature color LED light

source module rows

412, 414 are located on either side of the dual color temperature LED light source module row 416.

It is understood that the light source array 410 is disposed on the circuit substrate 20.

It will also be appreciated that the circuit substrate 20, which may be a substrate printed with circuitry or printed with PCB traces or provided with conductive wires, is used for telecommunications communication of the LED light source module. The circuit substrate may be a ceramic circuit substrate or an aluminum circuit substrate.

It can be understood that the LED chip emitting cool white LED light source module is a cool white LED chip. The LED chip of the LED light source module for emitting red light is a red light LED chip or a red-green-blue mixed light LED chip. The LED chip of the green light emitting LED light source module is a green light LED chip or a red, green and blue mixed light LED chip, and the LED chip of the blue light emitting LED light source module is a blue light LED chip or a red, green and blue mixed light LED chip.

The warm white emitting LED light source module emits warm white light with a beam angle of 36-37 degrees when being turned on. The cold white emitting LED light source module emits cold white light with a beam angle of 36-37 degrees when being turned on. The red light emitting LED light source module emits red light with a beam angle of 36-37 degrees when being turned on. The green light emitting LED light source module emits green light with a beam angle of 36-37 degrees when being turned on. The blue-light-emitting LED light source module emits blue light with a beam angle of 36-37 degrees when being turned on.

Illustratively, the two-color-temperature color LED light

source module rows

412, 414 may be a combination of two-color-temperature LED light source modules including a plurality of warm-white-emitting LED light source modules, a plurality of cool-white-emitting LED light source modules, and any one of a plurality of red-light-emitting LED light source modules, a plurality of green-light-emitting LED light source modules, and a plurality of blue-light-emitting LED light source modules.

Illustratively, the

rows

412, 414 of two color temperature color LED light source modules may also be a combination of two color temperature LED light source modules including a plurality of warm white emitting LED light source modules, a plurality of cool white emitting LED light source modules, and any two color LED light source modules among a plurality of red light emitting LED light source modules, a plurality of green light emitting LED light source modules, and a plurality of blue light emitting LED light source modules.

Illustratively, the

rows

412, 414 of two-color-temperature color LED light source modules may also be a combination of three color LED light source modules including a plurality of warm-white-emitting LED light source modules, a plurality of cold-white-emitting LED light source modules, and a plurality of red-light-emitting LED light source modules, a plurality of green-light-emitting LED light source modules, and a plurality of blue-light-emitting LED light source modules.

It can be understood that, in the illumination device 40 provided in the embodiment of the present application, the light source array 410 is formed by arranging the warm white emitting LED light source modules, the cool white emitting LED light source modules, the red emitting LED light source modules, the green emitting LED light source modules and the blue emitting LED light source modules with beam angles of 36 to 37 degrees, so that when the illumination device 40 simultaneously lights a plurality of warm white emitting LED light source modules and a plurality of cool white emitting LED light source modules, or when individually lights a plurality of red emitting LED light source modules, or when individually lights a plurality of green emitting LED light source modules, or individually lights a plurality of blue emitting LED light source modules, beam angles of color temperature light, red light, green light and blue light which are correspondingly formed are all 36 to 37 degrees, and since the beam angles of color temperature light, red light, green light and blue light are substantially consistent and in a small angle range, the illumination of the illumination device 40 has the effect of uniform mixed light illumination and improved illumination.

Referring to fig. 6 and 7, ww denotes a warm white emitting LED light source module, CW denotes a cool white emitting LED light source module, R denotes a red emitting LED light source module, G denotes a green emitting LED light source module, and B denotes a blue emitting LED light source module.

Referring to fig. 8-11, fig. 8 is a spatial light intensity distribution diagram of the lighting device 40 shown in fig. 6 after all the light-emitting LED light source modules emitting red light are turned on, which illustrates that the beam angle of red light emitted by the lighting device 40 is about 36.5 degrees after all the light-emitting LED light source modules emitting red light in the lighting device 40 are turned on.

Fig. 9 is a spatial light intensity distribution diagram of the illumination device 40 shown in fig. 6 after all of the LED light source modules emitting green light are turned on, and illustrates that the beam angle of green light emitted by the illumination device 40 is about 36.5 degrees after all of the LED light source modules emitting green light in the illumination device 40 are turned on.

Fig. 10 is a spatial light intensity distribution diagram of the lighting device 40 shown in fig. 6 after all of the blue-light-emitting LED light source modules are turned on, and illustrates that the beam angle of the blue light emitted by the lighting device 40 is about 36 degrees after all of the blue-light-emitting LED light source modules in the lighting device 40 are turned on.

Fig. 11 is a spatial light intensity distribution diagram of the illumination device 40 shown in fig. 6 after the warm white emitting LED light source module and the cool white emitting LED light source module are all turned on, which illustrates that after the warm white emitting LED light source module and the cool white emitting LED light source module in the illumination device 40 are all turned on, a beam angle of color temperature light formed by mixing the warm white light and the cool white light emitted by the illumination device 40 is about 37 degrees.

Therefore, after the LED light source modules in the lighting device 40 are all turned on, the beam angles of the color temperature lights are each about 37 degrees, the beam angle of the red light is about 36.5 degrees, the beam angle of the green light is about 36.5 degrees, and the beam angle of the blue light is about 36 degrees, at this time, the beam angles of the color temperature lights, the red light, the green light, and the blue light are substantially consistent, and the red light, the green light, and the blue light do not have color layering, and have the effect of uniform light mixing. In addition, the light beam angles of color temperature light, red light, green light and blue light are all in a small angle range of 36 degrees to 37 degrees, so that the illumination is improved.

In some embodiments, referring to fig. 6 and 7, the light source array 410 is a rectangular array with the same row pitch. The light source array 410 includes a plurality of rows 412 of dual color temperature color LED light source modules, a single row 416 of dual color temperature LED light source modules, and a plurality of rows 414 of dual color temperature color LED light source modules arranged in sequence along a column direction. The LED light source modules in the

rows

412 and 414 on both sides of the single row 416 of double color temperature LED light source modules have the same row spacing, are arranged in the same row, or are symmetrical.

It is understood that, referring to fig. 6 and 7, the light source array 410 is a rectangular array. The entirety of the light source array 410 is rectangular. The light source array 410 includes N rows of two-color temperature color LED light source module rows 412, 1 row of two-color temperature LED light source module rows 416, and N rows of two-color temperature color LED light source module rows 414, which are sequentially arranged in the column direction. N is a natural number greater than or equal to 2. The row spacing of two adjacent rows of LED light source modules in the light source array 410 is the same. The row distances of the LED light source modules in the N rows of bicolor temperature colored LED light

source module rows

412 and 414 are the same. In some embodiments, the N rows of bi-color temperature color LED light source module rows 412 have the same arrangement of color and color temperature as the N rows of bi-color temperature color LED light source module rows 414. In other embodiments, the N rows of bi-color temperature LED light source module rows 412 have the colors and color temperatures of the LED light source modules arranged symmetrically with respect to the bi-color temperature LED light source module row 416, as compared to the N rows of bi-color temperature color LED light source module rows 414.

In some embodiments, referring to fig. 6 and 7, in the light source array 410, in the row direction, the two-color-temperature color LED light source module row 412 includes warm white-emitting LED light source modules, cool white-emitting LED light source modules, red light-emitting LED light source modules, green light-emitting LED light source modules and blue light-emitting LED light source modules which are alternately arranged, and one or a combination of the red light-emitting LED light source modules, the green light-emitting LED light source modules and the blue light-emitting LED light source modules is arranged between two adjacent warm white-emitting LED light source modules and cool white-emitting LED light source modules; in the column direction, two adjacent LED light source modules are arranged in different colors or color temperatures; the number of LED light source modules in each row of dual color temperature LED light source module rows 416 is less than or equal to the number of LED light source modules in each row of dual color temperature color LED light

source module rows

412, 414.

In some embodiments, referring to fig. 6 and 7, the light source array 410 includes N rows of bicolor temperature color LED light source module rows 412, 1 row of bicolor temperature LED light source module rows 416, and N rows of bicolor temperature color LED light source module rows 414, which are sequentially arranged along a column direction. N is a natural number greater than or equal to 2.

In the light source array 410 of the above embodiment, five LED light source modules arbitrarily adjacent in the two-color-temperature color LED light

source module rows

412, 414 are referred to as a first LED light source module unit 410a in the row direction. The first, third and fifth LED light source modules in the first LED light source module unit 410a along the row direction are respectively one of a red light emitting LED light source module, a green light emitting LED light source module and a blue light emitting LED light source module and emit light of different colors, and the second and fourth LED light source modules are respectively one of a warm white emitting LED light source module and a cold white emitting LED light source module and emit light of different color temperatures; or the first, third and fifth LED light source modules in the row direction in the first LED light source module unit 410a are respectively one of the warm white LED light source module and the cold white LED light source module, and two adjacent LED light source modules in the first, third and fifth LED light source modules emit light of different color temperatures, and the second and fourth LED light source modules are respectively one of the red light LED light source module, the green light LED light source module and the blue light LED light source module and emit light of different colors.

In the light source array 410 according to the above embodiment, in the column direction, two adjacent LED light source modules emit light of different colors and are one of a red light emitting LED light source module, a blue light emitting LED light source module, and a green light emitting LED light source module; or the two adjacent LED light source modules emit light with different color temperatures and emit warm white LED light source modules or cool white LED light source modules.

In some embodiments, referring to fig. 6 and 7, the light source array 410 includes N rows of bicolor temperature color LED light source module rows 412, 1 row of bicolor temperature LED light source module rows 416, and N rows of bicolor temperature color LED light source module rows 414, which are sequentially arranged along a column direction. N is a natural number greater than or equal to 3.

In the light source array 410 according to the above-described embodiment, six LED light source modules adjacent to each other in any two adjacent columns in the two-color-temperature color LED light

source module rows

412 and 416 are referred to as a second LED light source module unit 410b in the column direction. Each column of the second LED light source module units 410b includes three LED light source modules. The three LED light source modules in one row of the second LED light source module unit 410b are respectively one of a red light emitting LED light source module, a green light emitting LED light source module, and a blue light emitting LED light source module and emit light of different colors, and the three light sources in the other row of the second LED light source module unit 410b are respectively one of a warm white emitting LED light source module and a cold white emitting LED light source module and two adjacent LED light source modules emit light of different color temperatures.

In some embodiments, referring to fig. 6, when the number of the LED light source modules in the dual color temperature LED light source module row 416 is an even number, except that two adjacent LED light source modules in the dual color temperature LED light source module row 416 are both warm white emitting LED light source modules or both cold white emitting LED light source modules, one of the two adjacent LED light source modules is a warm white emitting LED light source module, and the other is a cold white emitting LED light source module.

In other embodiments, referring to fig. 7, when the total number of light sources in the dual color temperature LED light source module row 416 is odd, one of two adjacent LED light source modules in the dual color temperature LED light source module row 416 is a warm white emitting LED light source module, and the other is a cold white emitting LED light source module.

In some embodiments, referring to fig. 6, the rows 416 of bi-color temperature LED light source modules are arranged along a first direction H1. When the total number of the LED light source modules of the double-color-temperature LED light source module row 416 is an even number, the double-color-temperature LED light source module row 416 includes a first sub LED light source module row 4162 and a second sub LED light source module row 4164 that are sequentially arranged and have the same total number of LED light source modules, and the arrangement rule of the first sub LED light source module row 4162 along the first direction H1 is the same as the reverse arrangement rule of the second sub LED light source module row 4164 along the first direction H1.

In other embodiments, referring to fig. 7, the rows 416 of dual color temperature LED light source modules are arranged along the first direction H1. When the total number of the LED light source modules in the dual color temperature LED light source module row 416 is an odd number, the dual color temperature LED light source module row 416 includes a first sub LED light source module row 4162, a central LED light source module 4166 and a second sub LED light source module row 4164, which are sequentially arranged, the total number of the LED light source modules in the first sub LED light source module row 4162 is the same as that in the second sub LED light source module row 4164, and the arrangement rule of the first sub LED light source module row 4162 along the first direction H1 is the same as that of the second sub LED light source module row 4164 along the reverse direction of the first direction H1.

In some embodiments, referring to fig. 6, the number ratio of the warm-white emitting LED light source modules, the cold-white emitting LED light source modules, the red-light emitting LED light source modules, the green-light emitting LED light source modules and the blue-light emitting LED light source modules in the two-color-temperature color LED light source module row is 3.

Illustratively, the number ratio of the warm-white emitting LED light source module, the cool-white emitting LED light source module, the red emitting LED light source module, the green emitting LED light source module and the blue emitting LED light source module in any row of the dual color temperature color LED light source modules can be 3.

For example, the number ratio of the warm-white emitting LED light source modules, the cold-white emitting LED light source modules, the red emitting LED light source modules, the green emitting LED light source modules and the blue emitting LED light source modules in any two adjacent rows of the dual color temperature color LED light source modules can be 3.

Exemplarily, the number ratio of the warm white emitting LED light source modules, the cold white emitting LED light source modules, the red emitting LED light source modules, the green emitting LED light source modules and the blue emitting LED light source modules in any adjacent three rows of double color temperature color LED light source modules can be 3.

In some embodiments, referring to fig. 6, light source array 410 includes seven rows of LED light source module rows. The light source array 410 comprises three

rows

412, 416 and 414 of double-color-temperature and double-color-temperature LED light source modules which are sequentially arranged along the column direction. 3, in the light source array 410, each of the three rows of the dual color temperature color LED light source modules emitting a warm white light. The number ratio of the LED light source modules emitting warm white to the LED light source modules emitting cool white in the dual color temperature LED light source module row 416 is 4.

Illustratively, referring to fig. 6, the light source array 410 includes 104 LED light source modules, wherein 28 LED light source modules emitting warm white, 28 LED light source modules emitting cool white, 16 LED light source modules emitting red, 16 LED light source modules emitting green, and 16 LED light source modules emitting blue are used. The number of LED light source modules in the

rows

412, 414 of dual color temperature color LED light source modules is fifteen, and the number of LED light source modules in the row 416 of dual color temperature LED light source modules is fourteen.

For example, referring to fig. 6, in the light source array 410, the center-to-center distance h between two adjacent rows of LED light source modules is 6-10 mm. Illustratively, the center-to-center spacing h may be 6 millimeters, 7 millimeters, 8 millimeters, 9 millimeters, or 10 millimeters. In the

rows

412 and 414 of the double-color-temperature color LED light source modules, the center-to-center distance w1 between two adjacent rows of LED light source modules is 6.2 mm. The dual color temperature LED light source module rows 416 are arranged along the first direction H1. In the dual color temperature LED light source module row 416, a center-to-center distance w1 between a first LED light source module and a second LED light source module along a first direction H1 is 4.65 to 7.75 mm, a center-to-center distance w1 between a penultimate LED light source module and a penultimate LED light source module is 4.65 to 7.75 mm, and a center-to-center distance w2 between any two adjacent LED light source modules located between the first LED light source module and the penultimate LED light source module is 5.07 to 8.45 mm. Illustratively, the center-to-center spacing w1 may be 4 millimeters, 5 millimeters, 6 millimeters, or 7 millimeters. The center-to-center spacing w2 may be 5 mm, 6 mm, 7 mm, or 8 mm.

In other embodiments, referring to fig. 7, the light source array 410 includes seven rows and fifteen columns of LED light source modules. The light source array 410 includes three

rows

412, 416 and 414 of two color temperature LED light source modules arranged in sequence along the column direction. The number of LED light source modules in the

rows

412, 414 and 416 of dual color temperature color LED light source modules is fifteen.

For example, referring to fig. 7, the light source array 410 includes 105 LED light source modules, wherein 28 LED light source modules emitting warm white, 29 LED light source modules emitting cool white, 16 LED light source modules emitting red, 16 LED light source modules emitting green, and 16 LED light source modules emitting blue are included. Compared to the light source array 410 shown in fig. 6, which includes 104 LED light source modules, the light source array 410 of fig. 7 adds 1 cool-white emitting LED light source module in the middle of the two-color-temperature LED light source module row 416.

In some embodiments, referring to fig. 7, in the light source array 410, the center-to-center distance h between two adjacent rows of LED light source modules is 6-10 mm. Illustratively, the center-to-center spacing h may be 6 millimeters, 7 millimeters, 8 millimeters, 9 millimeters, or 10 millimeters. In the

rows

412 and 414 of the double-color-temperature color LED light source modules, the center-to-center distance w1 between two adjacent rows of LED light source modules is 4.65-7.75 mm. In the double-color-temperature LED light source module row 416, the center-to-center distance w1 between two adjacent LED light source modules is 4.65-7.75 mm. Illustratively, the center-to-center spacing w1 may be 4 millimeters, 5 millimeters, 6 millimeters, or 7 millimeters.

For example, referring to fig. 1 and fig. 6 to fig. 7, a gap portion between two adjacent LED light source modules in the light source array 410 is an optical haze. The optical matte surface is a frosted surface or a satin surface having a certain haze, and plays a role of mixing stray light which is not collected by the condenser lens 120, so that the condensing ratio is improved, and the illuminance of the lighting device 40 is further improved.

The LED light source module and the lighting device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the description of the embodiments above is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An LED light source module, comprising:

an LED chip (110) and a condenser lens (120); the condenser lens (120) comprises a plane (122) and an aspheric surface (124) which are arranged oppositely; the light emitting surface (112) of the LED chip (110) is opposite to the plane (122) of the condenser lens (120) and is arranged at intervals; the light emitting surface (112) of the LED chip (110) is spaced from the condenser lens (120) by a distance of 0.25 mm to 0.45 mm; the edge thickness of the condenser lens (120) is 1.5 mm to 1.7 mm;

the aspheric surface (124) of the condenser lens (120) is designed to satisfy the function:

wherein z is a saggital value of an aspheric surface (124) of the condenser lens (120); y is a radial abscissa value of the aspherical surface (124) of the condenser lens (120), and the value range of y is

Is the aperture of the condenser lens (120); r is the curvature radius of the aspheric surface (124) of the condenser lens (120), and the value range of r is-2.25 mm to-1.95 mm; k is an aspheric surface (124) coefficient of the condenser lens (120), and the value range of k is-0.95 to-0.75.

2.LED light source module according to claim 1, characterized in that the light emitting face (112) is square or circular; the ratio of the aperture of the condenser lens (120) to the inner diameter of the light-emitting surface (112) is

3. The LED light source module of claim 1, further comprising:

a support structure (130) provided on the plane (122) side of the condenser lens (120); the supporting structure (130) encloses to form an accommodating space (132) for accommodating the LED chip (110); when the LED chip (110) and the supporting structure (130) are arranged on the circuit substrate (20), the supporting structure (130) enables the light-emitting surface (112) of the LED chip (110) and the plane (122) of the condensing lens (120) to be arranged in an opposite and spaced mode;

a package support (140); the packaging support (140) encloses to form a reflecting cavity (142); the LED chip (110) is arranged in the reflecting cavity (142), and the opening of the reflecting cavity (142) faces the condenser lens (120); and

a solder layer (150); the welding layer (150) is arranged on one side, back to the reflection cavity (142), of the packaging support (140), and the welding layer (150) is used for being connected with the circuit substrate (20) in a welding mode so as to achieve that the positive electrode and the negative electrode of the LED chip (110) are electrically connected with the circuit substrate (20);

wherein an outer diameter of the package support (140) and an outer diameter of the solder layer (150) are smaller than an inner diameter of the support structure (130) such that the support structure (130) is spaced apart from the package support (140) and the solder layer (150).

4. The LED light source module of claim 1, wherein the LED chip (110) comprises any one of a warm white LED chip, a cool white LED chip, a red LED chip, a green LED chip, a blue LED chip, or a mixed red, green and blue LED chip.

5. An illumination device, comprising:

a circuit board (20); and

a light source array (410), the light source array (410) comprising a plurality of LED light source modules (10) as claimed in any one of claims 1-4;

the LED light source modules (10) comprise a plurality of warm white emitting LED light source modules, a plurality of cold white emitting LED light source modules, a plurality of red light emitting LED light source modules, a plurality of green light emitting LED light source modules and a plurality of blue light emitting LED light source modules; the light source array (410) includes at least one row of dual color temperature LED light source module rows (416) that are spaced apart only by a plurality of warm white emitting LED light source modules and a plurality of cold white emitting LED light source modules, the light source array (410) includes a plurality of dual color temperature color LED light source module rows (412, 414) that are spaced apart by any three or more of a plurality of warm white emitting LED light source modules, a plurality of cold white emitting LED light source modules, a plurality of red light emitting LED light source modules, a plurality of green light emitting LED light source modules, and a plurality of blue light emitting LED light source modules, the number of rows of dual color temperature color LED light source module rows (412, 414) is greater than the number of rows of dual color temperature LED light source module rows (416), the dual color temperature color LED light source module rows (412, 414) are located on both sides of the dual color temperature LED light source module rows (416).

6. The lighting device according to claim 5, wherein the light source arrays (410) are rectangular arrays with the same row pitch; the light source array (410) comprises a plurality of rows of the dual color temperature color LED light source module rows (412, 414), a single row of the dual color temperature LED light source module row (416) and a plurality of rows of the dual color temperature color LED light source module rows (412, 414) which are sequentially arranged along a column direction;

the LED light source modules of the rows (412, 414) of the double color temperature color LED light source modules on two sides of the double color temperature LED light source module row (416) of a single row have the same column distance, are arranged in the same manner or are symmetrical.

7. The lighting device according to claim 6, wherein the two-color temperature color LED light source module rows (412, 414) comprise alternately arranged warm white emitting LED light source modules, cool white emitting LED light source modules, red light emitting LED light source modules, green light emitting LED light source modules and blue light emitting LED light source modules in a row direction, and one or a combination of the red light emitting LED light source modules, the green light emitting LED light source modules and the blue light emitting LED light source modules is arranged between two adjacent warm white emitting LED light source modules and cool white emitting LED light source modules;

in the column direction, two adjacent LED light source modules are arranged in different colors or color temperatures;

the number of LED light source modules in each row of the double color temperature LED light source module row (416) is less than or equal to the number of LED light source modules in each row of the double color temperature color LED light source module rows (412, 414).

8. The lighting device according to claim 6, wherein the rows (416) of dual color temperature LED light source modules are arranged along a first direction H1;

when the total number of the LED light source modules of the double-color-temperature LED light source module row (416) is an even number, the double-color-temperature LED light source module row (416) comprises a first sub-LED light source module row (4162) and a second sub-LED light source module row (4164) which are sequentially arranged and have the same total number of the LED light source modules, and the arrangement rule of the first sub-LED light source module row (4162) along the first direction H1 is the same as the reverse arrangement rule of the second sub-LED light source module row (4164) along the first direction H1;

when the total number of the LED light source modules of the double-color-temperature LED light source module row (416) is an odd number, the double-color-temperature LED light source module row (416) comprises a first sub-LED light source module row (4162), a central LED light source module (4166) and a second sub-LED light source module row (4164) which are sequentially arranged, the total number of the LED light source modules of the first sub-LED light source module row (4162) and the second sub-LED light source module row (4164) is the same, and the arrangement rule of the first sub-LED light source module row (4162) along the first direction H1 is the same as the reverse arrangement rule of the second sub-LED light source module row (4164) along the first direction H1.

9. The lighting device according to claim 5, wherein the ratio of the number of the warm-white emitting LED light source modules, the cool-white emitting LED light source modules, the red-light emitting LED light source modules, the green-light emitting LED light source modules and the blue-light emitting LED light source modules in the row of dual color temperature color LED light source modules (412, 414) is 3;

in the light source array (410), the center distance between two adjacent rows of LED light source modules is 6-10 mm; in the double-color-temperature color LED light source module rows (412, 414), the center distance between two adjacent lines of LED light source modules is 4.65-7.75 mm; the rows (416) of dual color temperature LED light source modules are arranged along a first direction H1; in the double-color-temperature LED light source module row (416), the center distance between a first LED light source module and a second LED light source module along the first direction H1 is 4.65-7.75 mm, the center distance between a penultimate LED light source module and a penultimate LED light source module is 4.65-7.75 mm, and the center distance between any two adjacent LED light source modules between the first LED light source module and the penultimate LED light source module is 5.07-8.45 mm.

10. The lighting device according to claim 5, wherein a gap portion between two adjacent LED light source modules in the light source array (410) is an optical haze.