Light emitting device

Abstract

The application discloses a light-emitting device, and relates to the technical field of illumination. The light-emitting device comprises a first infrared chip, a blue-violet light module, a second infrared chip, a containing element and a fluorescent layer. The blue-violet light module is used for generating a purple light beam and a blue light beam, and the first infrared chip and the second infrared chip are both used for generating an infrared light beam. The fluorescent layer performs a waveband adjusting operation on the purple light beam, the blue light beam and the infrared light beam, so as to adjust the wavelength of the outgoing light of the light-emitting device. After receiving a power supply signal, the first infrared chip, the blue-violet light module and the second infrared chip are all divided into voltages according to their internal impedances, so that the first infrared chip, the blue-violet light module and the second infrared chip all perform light-emitting operations under a rated voltage. The light-emitting device of the embodiment does not need to be provided with an additional voltage control circuit, so that the light-emitting chip can normally perform light-emitting operations, thereby reducing the production cost of the product.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to a light-emitting device. Background Technology

[0002] In related technologies, full-spectrum light-emitting devices require additional voltage control circuits to control the voltage of each light-emitting chip individually, enabling them to emit light normally. However, adding additional voltage control circuits increases the production cost of the product. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a light-emitting device that can reduce the production cost of products.

[0004] A light-emitting device according to a first aspect embodiment of the present invention includes:

[0005] A first infrared chip is used to be connected in series with the positive terminal of an external power supply; wherein the external power supply is used to provide a power supply signal.

[0006] A blue-violet light module, which is connected in series with the first infrared chip, is used to generate a violet light beam and a blue light beam according to the power supply signal;

[0007] The second infrared chip is used to be connected in series with the negative terminal of the blue-violet light module and the external power supply, respectively; wherein, both the first infrared chip and the second infrared chip are used to generate an infrared beam according to the power supply signal;

[0008] The receiving component has a receiving cavity and a first opening communicating with the receiving cavity; wherein, the receiving cavity is used to receive the blue-violet light module, the first infrared chip, and the second infrared chip, and the beam emitting ends of the first infrared chip, the blue-violet light module, and the second infrared chip are all corresponding to the first opening end;

[0009] A fluorescent layer is disposed within the containment cavity, and the fluorescent layer is used to perform band adjustment operations on the violet light beam, the blue light beam, and the infrared light beam.

[0010] The light-emitting device according to an embodiment of the present invention has at least the following beneficial effects: a first infrared chip, a blue-violet light module, and a second infrared chip are connected in series. The first infrared chip is electrically connected to the positive terminal of an external power supply, and the second infrared chip is electrically connected to the negative terminal of the external power supply. The external power supply provides a power supply signal. The blue-violet light module generates a violet light beam and a blue light beam according to the power supply signal, and both the first and second infrared chips generate infrared light beams according to the power supply signal. A fluorescent layer is used to perform band adjustment operations on the violet light beam, the blue light beam, and the infrared light beam to adjust the emitted light wavelength of the light-emitting device. After receiving the power supply signal, the first infrared chip, the blue-violet light module, and the second infrared chip perform voltage division according to their internal impedance, so that the first infrared chip, the blue-violet light module, and the second infrared chip all operate at rated voltage. The light-emitting device of this embodiment can enable the light-emitting chip to operate normally without the need for additional voltage control circuitry, thereby reducing product design difficulty and production costs. Meanwhile, by setting a first infrared chip, a second infrared chip, and a fluorescent layer, the light-emitting device of this embodiment expands and increases the spectrum of the invisible light band in the near-infrared region in the emitted light of the light-emitting device. Since the light in the near-infrared band is beneficial to the human body, the light-emitting device of this embodiment can achieve the effect of promoting human health.

[0011] According to some embodiments of the present invention, the blue-violet light module includes:

[0012] A violet light chip, wherein the violet light chip is used to generate a violet light beam according to the power supply signal;

[0013] A blue light chip, which is connected in series with the violet light chip, and the blue light chip is used to generate a blue light beam according to the power supply signal;

[0014] Wherein, the first infrared chip is used to be electrically connected to the violet light chip, and the second infrared chip is used to be electrically connected to the blue light chip; or, the first infrared chip is used to be electrically connected to the blue light chip, and the second infrared chip is used to be electrically connected to the violet light chip; or, both the first infrared chip and the second infrared chip are used to be electrically connected to the violet light chip; or, both the first infrared chip and the second infrared chip are used to be electrically connected to the blue light chip.

[0015] According to some embodiments of the present invention, the fluorescent layer comprises:

[0016] A first infrared fluorescent layer, wherein the material of the first infrared fluorescent layer includes a first infrared phosphor;

[0017] The second infrared fluorescent layer is made of a second infrared phosphor.

[0018] A visible light fluorescent layer, wherein the material of the visible light fluorescent layer includes visible light phosphor.

[0019] According to some embodiments of the present invention, the peak wavelength of the first infrared phosphor is 733 nm, the peak wavelength of the second infrared phosphor is 817 nm, and the peak wavelength range of the visible light phosphor is 495 nm to 660 nm.

[0020] According to some embodiments of the present invention, the wavelength range of the violet light beam is 400 nm to 430 nm; the wavelength range of the blue light beam is 450 nm to 460 nm.

[0021] According to some embodiments of the present invention, the wavelength range of the infrared beam generated by the first infrared chip is 930 nm to 970 nm; the wavelength range of the infrared beam generated by the second infrared chip is 980 nm to 1100 nm.

[0022] According to some embodiments of the present invention, the light-emitting device further includes:

[0023] The first pad is used for electrical connection with the positive terminal of the external power supply, and the surface of the first pad is used to support the first infrared chip and the blue-violet light module.

[0024] The second pad is used for electrical connection with the negative terminal of the external power supply, and the surface of the second pad is used to support the second infrared chip.

[0025] The receiving component has a second opening communicating with the receiving cavity. The second opening is disposed opposite to the first opening. The electrical connection end of the first pad and the first infrared chip is disposed opposite to the second opening end. The electrical connection end of the second pad and the second infrared chip is disposed opposite to the second opening end. The first pad and the first infrared chip are disposed opposite to each other on both sides of the second opening end, and the first pad is electrically connected to the first infrared chip. The second pad and the second infrared chip are disposed opposite to each other on both sides of the second opening end, and the second pad is electrically connected to the second infrared chip. Both the first pad and the second pad are used to support the receiving component and to seal the second opening end.

[0026] According to some embodiments of the present invention, the light-emitting device further includes:

[0027] An optical diffuser is disposed at the first opening end of the receiving member. The optical diffuser is used to seal the first opening and to perform optical diffusion operations on the violet light beam, the blue light beam, and the infrared light beam, respectively.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0030] Figure 1 This is a top view of a specific embodiment of the light-emitting device of the present invention;

[0031] Figure 2 This is a cross-sectional view of a specific embodiment of the light-emitting device of the present invention.

[0032] Figure label:

[0033] First infrared chip 100, second infrared chip 200, blue-violet light module 300, violet light chip 310, blue light chip 320, housing 400, first solder pad 500, second solder pad 600, optical diffuser 700. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] like Figure 1 As shown, an embodiment of the present invention provides a light-emitting device, which includes: a first infrared chip 100, a blue-violet light module 300, a second infrared chip 200, a housing 400, and a fluorescent layer. The first infrared chip 100 is connected in series with the positive terminal of an external power supply; wherein the external power supply is used to provide a power supply signal; the blue-violet light module 300 is connected in series with the first infrared chip 100, and the blue-violet light module 300 is used to generate a violet light beam and a blue light beam according to the power supply signal; the second infrared chip 200 is connected in series with the negative terminals of the blue-violet light module 300 and the external power supply respectively; wherein both the first infrared chip 100 and the second infrared chip 200 are used to generate an infrared light beam according to the power supply signal; the housing 400 is provided with a housing cavity and a first opening communicating with the housing cavity; wherein the housing cavity is used to house the blue-violet light module 300, the first infrared chip 100, and the second infrared chip 200, and the beam emission ends of the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200 all correspond to the first opening end; a fluorescent layer is disposed in the housing cavity, and the fluorescent layer is used to perform band adjustment operation on the violet light beam, the blue light beam, and the infrared light beam.

[0040] Specifically, the first infrared chip 100 is a positive-polarity light-emitting chip, and the second infrared chip 200 is a negative-polarity light-emitting chip. The first infrared chip 100 is electrically connected to the positive terminal of the external power supply and one end of the blue-violet light module 300, respectively. The second infrared chip is electrically connected to the negative terminal of the external power supply and the other end of the blue-violet light chip 310, respectively. That is, the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200 are connected in series. The external power supply provides a power supply signal, which flows sequentially through the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200.

[0041] Since the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200 are connected in series, after receiving a power supply signal, each of the three chips performs a voltage divider operation to ensure that its voltage meets its normal operating voltage. For example, the rated voltage of the blue-violet light module 300 is 3V, and the rated voltages of the first infrared chip 100 and the second infrared chip 200 are both 1.5V. Upon receiving a power supply signal, the first infrared chip 100 and the second infrared chip 200 divide the voltage of the power supply signal according to their own impedance, so that the voltage across the first infrared chip 100 and the voltage across the second infrared chip 200 are both 1.5V, thus enabling both the first infrared chip 100 and the second infrared chip 200 to emit light normally under their rated voltage. Similarly, upon receiving a power supply signal, the blue-violet light module 300 divides the voltage of the power supply signal according to its own impedance, so that the voltage across the blue-violet light module 300 is 3V, thus enabling the blue-violet light module 300 to emit light normally under its rated voltage. The blue-violet light module 300 is used to generate violet and blue light beams, while the first infrared chip 100 and the second infrared chip 200 are both used to generate infrared beams.

[0042] Reference Figure 1 , Figure 2 The housing 400 has a housing cavity for housing the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200. A first opening is formed at the upper end of the housing cavity, and this first opening communicates with the housing cavity. The beam emission ends of the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200 are positioned facing this first opening, so that the violet light beam, blue light beam, and infrared light beam can all be emitted from the first opening. A fluorescent layer is disposed in the housing cavity, and the fluorescent layer is used to adjust the wavelength spectrum of the violet light beam, blue light beam, and infrared light beam respectively, thereby improving the color rendering index of the beam.

[0043] In related technologies, full-spectrum light-emitting devices can only provide light in the visible light band. The light-emitting device of this embodiment, through a first infrared chip 100, a second infrared chip 200, and a fluorescent layer, extends the spectral band of the emitted light by adding the near-infrared invisible light band. Related studies have shown that near-infrared light has beneficial effects such as promoting blood circulation, promoting metabolism, and promoting muscle relaxation. Therefore, the light-emitting device of this embodiment achieves the effect of promoting human health by adding the near-infrared invisible light band to the emitted light.

[0044] According to an embodiment of the present invention, a first infrared chip 100, a blue-violet light module 300, and a second infrared chip 200 are connected in series. The first infrared chip 100 is electrically connected to the positive terminal of an external power supply, and the second infrared chip 200 is electrically connected to the negative terminal of the external power supply. The external power supply provides a power supply signal. The blue-violet light module 300 generates a violet light beam and a blue light beam according to the power supply signal, and the first infrared chip 100 and the second infrared chip 200 both generate an infrared light beam according to the power supply signal. A fluorescent layer is used to perform band adjustment operations on the violet light beam, the blue light beam, and the infrared light beam to adjust the wavelength of the emitted light from the light-emitting device. After receiving the power supply signal, the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200 perform voltage division according to their internal impedance, so that the first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200 all operate at rated voltage. The light-emitting device of this embodiment can enable the light-emitting chip to operate normally without the need for an additional voltage control circuit, thereby reducing the production cost of the product. Meanwhile, the light-emitting device in this embodiment expands and increases the spectrum of the near-infrared invisible light band in the emitted light by setting a first infrared chip 100, a second infrared chip 200, and a fluorescent layer, thereby achieving the effect of promoting human health.

[0045] like Figure 1 As shown, in some specific embodiments of the present invention, the blue-violet light module 300 includes: a violet light chip 310 and a blue light chip 320. The violet light chip 310 is used to generate a violet light beam according to a power supply signal; the blue light chip 320 is connected in series with the violet light chip 310 and is used to generate a blue light beam according to a power supply signal; wherein, a first infrared chip 100 is used to be electrically connected to the violet light chip 310, and a second infrared chip 200 is used to be electrically connected to the blue light chip 320; or, the first infrared chip 100 is used to be electrically connected to the blue light chip 320, and the second infrared chip 200 is used to be electrically connected to the violet light chip 310; or, both the first infrared chip 100 and the second infrared chip 200 are used to be electrically connected to the violet light chip 310; or, both the first infrared chip 100 and the second infrared chip 200 are used to be electrically connected to the blue light chip 320.

[0046] Specifically, the number of blue LED chips 320 and violet LED chips 310 can be set according to actual needs, for example, referring to... Figure 1 In this configuration, two violet light chips 310 and one blue light chip 320 are used, with the blue light chip 320 and violet light chip 310 connected in series. When two violet light chips 310 and one blue light chip 320 are used, for example, referring to... Figure 1The first infrared chip 100 is electrically connected to one of the violet light chips 310, the second infrared chip 200 is electrically connected to the other violet light chip 310, and the third infrared chip 200 is electrically connected to the other violet light chip 310. Alternatively, the first infrared chip 100 is electrically connected to the violet light chip 310, the second infrared chip 200 is electrically connected to the other violet light chip 320, and the fourth infrared chip 200 is electrically connected to the other violet light chip 310. The fifth infrared chip 200 is electrically connected to the violet light chip 310, the sixth infrared chip 320, the seventh infrared chip 310, and the seventh violet light chip 310. The violet light module 300 can also optionally have two blue light chips 320 and one violet light chip 310; the specific connection method can be referred to the connection method in the above example. In this embodiment, by connecting the blue light chip 320 and the violet light chip 310 in series, the blue light chip 320 and the violet light chip 310 can perform voltage division according to their internal impedance after receiving the power supply signal, so that both the blue light chip 320 and the violet light chip 310 can emit light at the rated voltage.

[0047] In some specific embodiments of the present invention, the wavelength range of the violet light beam is 400nm to 430nm; the wavelength range of the blue light beam is 450nm to 460nm.

[0048] Specifically, the violet light chip 310 generates a violet light beam with a wavelength range of 400–430 nm. When the blue-violet light module 300 has two violet light chips 310, both chips can select the same wavelength value within the 400–430 nm range to generate a violet light beam, or the two chips can each select different wavelength values ​​within the 400–430 nm range to generate a violet light beam. The blue light chip 320 generates a blue light beam with a wavelength range of 450–460 nm. When the blue-violet light module 300 has one blue light chip 320, the blue light chip 320 can select a single wavelength value within the 450–460 nm range to generate a blue light beam.

[0049] In some specific embodiments of the present invention, the wavelength range of the infrared beam generated by the first infrared chip 100 is 930nm to 970nm; the wavelength range of the infrared beam generated by the second infrared chip 200 is 980nm to 1100nm.

[0050] Specifically, the first infrared chip 100 can select a wavelength value in the range of 930–970 nm to generate an infrared beam, and the second infrared chip 200 can select a wavelength value in the range of 980–1100 nm to generate another infrared beam. Through the first infrared chip 100 and the second infrared chip 200, the spectral band of the emitted light can be extended to the 380 nm–1100 nm band, which includes the spectrum of the near-infrared invisible light band.

[0051] like Figure 1 As shown, in some specific embodiments of the present invention, the fluorescent layer includes: a first infrared fluorescent layer, a second infrared fluorescent layer, and a visible light fluorescent layer. The first infrared fluorescent layer is made of a first infrared phosphor; the second infrared fluorescent layer is made of a second infrared phosphor; and the visible light fluorescent layer is made of a visible light phosphor.

[0052] Specifically, the first infrared fluorescent layer, the second infrared fluorescent layer, and the visible light fluorescent layer are all disposed within the receiving cavity of the receiving member 400. The first and second infrared fluorescent layers can store the light energy of the infrared beam and adjust the wavelength of the infrared beam. The visible light fluorescent layer can store the light energy of the blue light beam and the violet light beam, respectively, and adjust the blue light beam and the violet light beam, respectively, to make the spectrum of the emitted light continuous and smooth, thereby improving the color rendering index. The first infrared fluorescent layer is made of a first infrared phosphor, and the second infrared fluorescent layer is made of a second infrared phosphor, wherein the peak wavelengths of the first infrared phosphor and the second infrared phosphor are different. The visible light phosphor contains phosphors of various visible light bands.

[0053] In some specific embodiments of the present invention, the peak wavelength of the first infrared phosphor is 733 nm, the peak wavelength of the second infrared phosphor is 817 nm, and the peak wavelength range of the visible light phosphor is 495 nm to 660 nm.

[0054] Specifically, the peak wavelength of the first infrared phosphor is 733 nm, and the peak wavelength of the second infrared phosphor is 817 nm. This adjusts the infrared beam band generated by the first infrared chip 100 and the second infrared chip 200, thereby ensuring a continuous and smooth infrared beam spectrum. The peak wavelength range of the visible light phosphor is any combination of 495 nm to 660 nm. For example, the visible light phosphor includes five phosphors with peak wavelengths of 495 nm, 516 nm, 585 nm, 644 nm, and 660 nm. This ensures that the spectra of the blue and violet light beams generated by the blue-violet light module 300 are continuous and smooth, thereby improving the color rendering index.

[0055] like Figure 1 , Figure 2As shown, in some specific embodiments of the present invention, the light-emitting device further includes: a first pad 500 and a second pad 600. The first pad 500 is used for electrical connection with the positive terminal of an external power supply, and the surface of the first pad 500 is used to support the first infrared chip 100 and the blue-violet light module 300; the second pad 600 is used for electrical connection with the negative terminal of an external power supply, and the surface of the second pad 600 is used to support the second infrared chip 200; wherein, the receiving member 400 is provided with a second opening communicating with the receiving cavity, the second opening being disposed opposite to the first opening, and the electrical connection end between the first pad 500 and the first infrared chip 100 being disposed opposite to the second opening end, the second pad 600 being disposed opposite to the first infrared chip 100. The electrical connection terminals of the disk 600 and the second infrared chip 200 are disposed opposite to the second opening end; the first pad 500 and the first infrared chip 100 are disposed opposite to each other on both sides of the second opening end, and the first pad 500 and the first infrared chip 100 are electrically connected; the second pad 600 and the second infrared chip 200 are disposed opposite to each other on both sides of the second opening end, and the second pad 600 and the second infrared chip 200 are electrically connected; both the first pad 500 and the second pad 600 are used to support the housing 400 and to seal the second opening end.

[0056] Specifically, refer to Figure 1 , Figure 2 The first pad 500 and the second pad 600 are both disposed on the lower side of the housing 400 and are connected to the lower surface of the housing 400. The first pad 500 and the second pad 600 are disposed on the same horizontal line. A second opening is formed on the lower surface of the housing 400, which communicates with the housing cavity of the housing 400. The first pad 500 and the second pad 600 seal the end of the second opening. The first pad 500 is used to support the first infrared chip 100 and the blue-violet light module 300, and the first pad 500 is electrically connected to the first infrared chip 100 and the positive terminal of the external power supply, respectively. The second pad 600 is used to support the second infrared chip 200, and the second pad 600 is electrically connected to the second infrared chip 200 and the negative terminal of the external power supply, respectively. The first infrared chip 100, the blue-violet light module 300, and the second infrared chip 200 are all disposed on the upper side of the second opening end (i.e., disposed in the receiving cavity of the receiving member 400). The connection ends of the first infrared chip 100 and the blue-violet light module 300 to the first pad 500 respectively pass through the second opening end, and the connection end of the second infrared chip 200 to the second pad 600 also passes through the second opening end.

[0057] like Figure 2 As shown, in some specific embodiments of the present invention, the light-emitting device further includes an optical diffuser 700. The optical diffuser 700 is disposed at the first opening end of the receiving member 400, and is used to seal the first opening. The optical diffuser 700 is used to perform optical diffusion operations on the violet light beam, the blue light beam, and the infrared light beam, respectively.

[0058] Specifically, refer to Figure 2 An optical diffuser 700 is disposed on the upper side of the housing 400 and seals the first opening of the housing 400. When the violet light beam, blue light beam, and infrared light beam exit from the first opening of the housing 400, they all pass through the optical diffuser 700. The optical diffuser 700 performs optical diffusion operations on the violet light beam, blue light beam, and infrared light beam to ensure that the violet light beam, blue light beam, and infrared light beam are uniformly transmitted from the upper surface of the optical diffuser 700.

[0059] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A light emitting device, characterized by Comprise: A first infrared chip, which is used for series connection with the positive pole of an external power supply; wherein the external power supply is used for providing a power supply signal; A blue-violet light module, which is used for series connection with the first infrared chip, and is used for generating a purple light beam and a blue light beam according to the power supply signal, the blue-violet light module comprising a purple light chip and a blue light chip, the purple light chip being used for generating a purple light beam according to the power supply signal, the blue light chip being used for series connection with the purple light chip, and the blue light chip being used for generating a blue light beam according to the power supply signal; A second infrared chip, which is used for series connection with the blue-violet light module and the negative pole of the external power supply, respectively; wherein the first infrared chip and the second infrared chip are both used for generating an infrared light beam according to the power supply signal, the wavelength range of the infrared light beam generated by the first infrared chip being 930nm to 970nm, and the wavelength range of the infrared light beam generated by the second infrared chip being 980nm to 1100nm; A containing member, which is provided with a containing cavity and a first opening in communication with the containing cavity; wherein the containing cavity is used for containing the blue-violet light module, the first infrared chip and the second infrared chip, and the light beam exit ends of the first infrared chip, the blue-violet light module and the second infrared chip all correspond to the first opening end; A fluorescent layer, which is arranged in the containing cavity, and is used for wavelength adjustment operation on the purple light beam, the blue light beam and the infrared light beam, the fluorescent layer comprising a first infrared fluorescent layer, a second infrared fluorescent layer and a visible light fluorescent layer, the material of the first infrared fluorescent layer comprising first infrared fluorescent powder, the material of the second infrared fluorescent layer comprising second infrared fluorescent powder, the peak wavelength of the first infrared fluorescent powder being different from the peak wavelength of the second infrared fluorescent powder, and the material of the visible light fluorescent layer comprising visible light fluorescent powder, the peak wavelength of the first infrared fluorescent powder being 733nm, the peak wavelength of the second infrared fluorescent powder being 817nm, and the peak wavelength range of the visible light fluorescent powder being 495nm to 660nm.

2. The light emitting device of claim 1, wherein The first infrared chip is used for electrical connection with the purple light chip, and the second infrared chip is used for electrical connection with the blue light chip; or, the first infrared chip is used for electrical connection with the blue light chip, and the second infrared chip is used for electrical connection with the purple light chip; or, the first infrared chip and the second infrared chip are both used for electrical connection with the purple light chip; or, the first infrared chip and the second infrared chip are both used for electrical connection with the blue light chip.

3. The light emitting device of claim 1, wherein The wavelength range of the purple light beam is 400nm to 430nm, and the wavelength range of the blue light beam is 450nm to 460nm.

4. The light emitting device according to any one of claims 1 to 3, wherein Further comprise: A first pad, which is used for electrical connection with the positive pole of the external power supply, and the surface of the first pad is used for carrying the first infrared chip and the blue-violet light module; A second pad is used for electrical connection with a negative pole of the external power supply, and a surface of the second pad is used for carrying the second infrared chip; The accommodation member is provided with a second opening in communication with the accommodation cavity, and the second opening is oppositely arranged with the first opening. The electrical connection end of the first infrared chip is oppositely arranged with the second opening end, and the electrical connection end of the second infrared chip is oppositely arranged with the second opening end. The first pad and the first infrared chip are oppositely arranged on two sides of the second opening end, and the first pad is electrically connected with the first infrared chip. The second pad and the second infrared chip are oppositely arranged on two sides of the second opening end, and the second pad is electrically connected with the second infrared chip. The first pad and the second pad are both used for carrying the accommodation member and sealing the second opening end.

5. The light emitting device of claim 4, wherein Further comprising: An optical diffusion member is arranged at the first opening end of the accommodation member, and the optical diffusion member is used for sealing the first opening. The optical diffusion member is used for performing optical diffusion operation on the violet light beam, the blue light beam and the infrared light beam, respectively.

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