CN116221639A - A light source and lamp - Google Patents

Abstract

The invention provides a light source and a lamp, wherein the light source comprises a first light-emitting part and a second light-emitting part, the spectrum of the first light-emitting part at least comprises a spectrum of 380 nm-700 nm, the spectrum of the second light-emitting part is a spectrum of 700 nm-785 nm, the light source consists of the first light-emitting part and the second light-emitting part, namely, the light emitted by the light source is the combined light of the light emitted by the first light-emitting part and the light emitted by the second light-emitting part, the spectrum of the light emitted by the light source is a spectrum of 380 nm-785 nm, the supplement of the spectrum of the wave band of at least 700nm-780nm is realized, the problem that the spectrum of the existing light source is low in the wave band of 700nm-780nm is solved, the spectrum of the light source is close to the full spectrum, namely, the spectrum of the light source is close to the spectrum of natural light is effectively improved, and the color rendition of the light source is improved.

Description

A light source and lamp

technical field

The invention relates to the technical field of lighting, in particular to a light source and a lamp.

Background technique

Lighting lamps play a very important role in people's life and work. The spectrum of the light source included in the lamp is an important factor in determining the luminous efficacy of the lamp. Generally, people's eyes are relatively more comfortable in the state of natural light. Therefore, the closer the spectrum of the light source (with a wavelength range of 380nm to 780nm) is closer to the spectrum of natural light, the more complete the spectrum of the light source, the less irritating the lamps are to people's eyes, and the more comfortable people will feel during use. Can play a very good vision protection effect.

At present, the common light source in lamps and lanterns is LED (Light-Emitting Diode Light) light source, which has the characteristics of low cost and low energy consumption, and the energy consumption of LED lights is only one tenth of that of incandescent lamps, and one fourth of that of energy-saving lamps. One, it is widely used in life and work scenes. In common LED lamps, the luminescent spectrum can be close to the natural light spectrum in the 380nm-700nm band.

However, the above-mentioned light source has weak light intensity in the 700nm-780nm band, which causes the light source spectrum to be weak in the 700nm-780nm band, which affects the light efficiency of the lamp.

Contents of the invention

The invention provides a light source and a lamp to solve the problem that in the existing lamps, the light intensity of the light source is weak in the 700nm-780nm band, which causes the light source spectrum to be weak in the 700nm-780nm band and affects the light efficiency of the lamp.

The first aspect of the present application provides a light source, including a first light-emitting element and a second light-emitting element;

The spectrum of the first light-emitting element is at least including the spectrum of 380nm-700nm, and the spectrum of the second light-emitting element is the spectrum of 700nm-785nm.

The light source is composed of the first light-emitting element and the second light-emitting element, that is, the light emitted by the light source is the combined light of the light emitted by the first light-emitting element and the light emitted by the second light-emitting element, and the spectrum of the first light-emitting element is in the 380nm-700nm band The spectrum of the second luminous element is the spectrum of the 700nm-785nm band, and the spectrum of the light emitted by the light source is the spectrum of 380nm-785nm, which realizes at least the supplement to the spectrum of the 700nm-780nm band and solves the problem of the existing light source in the The low and weak spectrum of the 700nm~780nm band makes the spectrum of the light source close to the full spectrum, that is, the spectrum of the light source is close to the spectrum of natural light, thus effectively improving the light efficiency of the light source and improving the protection effect of the light source on human eyes.

In a possible implementation manner, the second light-emitting element includes a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element;

The spectrum of the first light-emitting element is a first segment spectrum, the spectrum of the second light-emitting element is a second segment spectrum, the spectrum of the third light-emitting element is a third segment spectrum, and the fourth light-emitting element The spectrum of the component is the fourth segment spectrum;

The first segmented spectrum, the second segmented spectrum, the third segmented spectrum and the fourth segmented spectrum are sequentially connected to form a spectrum of 700nm-785nm.

In a possible implementation manner, the first segmented spectrum is a spectrum from 700nm to 721nm;

The second segmented spectrum is a spectrum from 720nm to 741nm;

The third segmented spectrum is a spectrum from 740nm to 761nm;

The fourth segment spectrum is a spectrum of 760nm-785nm.

In a possible implementation manner, the ratio of the power of the first light-emitting element, the power of the second light-emitting element, the power of the third light-emitting element, and the power of the fourth light-emitting element is (1∼ 5): (1~5): (1~5): (1~5).

In a possible implementation manner, the ratio of the power of the first light-emitting element, the power of the second light-emitting element, the power of the third light-emitting element, and the power of the fourth light-emitting element is 1:1 :1:1.

In a possible implementation manner, the ratio of the power of the first light-emitting element, the power of the second light-emitting element, the power of the third light-emitting element, and the power of the fourth light-emitting element is 1:1 :2:1.

In a possible implementation manner, the first light-emitting element, the second light-emitting element, the third light-emitting element and the fourth light-emitting element are single-color red or infrared lamp beads;

The red light bead is an LED light bead excited by a 700nm-785nm waveband chip.

In a possible implementation manner, the light intensities of the first light emitting element, the second light emitting element, the third light emitting element and the fourth light emitting element are all greater than 0.3.

In a possible implementation manner, a ratio of the power of the first light-emitting element to the power of the second light-emitting element is (1-20):1.

The second aspect of the present application provides a lamp, which at least includes a lamp housing and any one of the above-mentioned light sources, and the light source is arranged on the lamp housing.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the spectrogram of sunlight;

Fig. 2 is the spectrum diagram of the light source in the existing LED lamp;

FIG. 3 is a schematic structural diagram of a light source provided in an embodiment of the present application;

FIG. 4 is a spectrum diagram of a light source provided in the embodiment of the present application;

FIG. 5 is a spectrum diagram of another light source provided in the embodiment of the present application;

Fig. 6 is a schematic diagram of the arrangement of a first light-emitting element, a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element provided by an embodiment of the present application;

Fig. 7 is a schematic diagram of another arrangement of a first light-emitting element and a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element provided by the embodiment of the present application;

Fig. 8 is a schematic structural diagram of a lamp provided by an embodiment of the present application.

Explanation of reference signs:

100 - light source;

10 - the first luminous element;

20 - the second luminous element;

21 - the first light-emitting element;

22 - the second light-emitting element;

23 - the third light-emitting element;

24 - the fourth light-emitting element;

200 - lamps;

210 - Lamp housing.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

FIG. 1 is a spectrum diagram of sunlight, and FIG. 2 is a spectrum diagram of a light source in an existing LED lamp.

With the continuous development and progress of lamps and lanterns, lamps are no longer simply used for lighting, and people begin to pay more attention to the impact of lighting lamps on the eyes. Since the human eye has adapted to the natural light environment during the long-term evolution process, the human eye is less stimulated in the natural light environment, the eye comfort is better, and it also has a certain protective effect on vision.

See Figure 1, which shows the spectrum of natural light, where the abscissa is the wavelength, and the ordinate is the luminous intensity of the light. It can be seen from Figure 1 that the spectrum of natural light has a certain intensity within the wavelength range of 380nm to 780nm. The human eye is most comfortable in light corresponding to this spectrum, and it helps to protect the human eye.

How lighting fixtures can achieve natural lighting effects has always been the research direction of lighting fixtures. Lamps usually include a light source, which is used to emit light. The spectrum of the light emitted by the light source is one of the important factors that determine the luminous efficacy of the lighting fixture. That is to say, the spectrum of the light emitted by the light source responds within 380nm to 780nm. The closer the spectrum of the light source is to natural light, the more complete the spectrum of the light source, and the better the light efficiency of the corresponding lamps. In this way, when people use the lamps, the lamps will be less irritating to the human eyes, the comfort of the eyes will be better, and the eyesight can be well protected.

At present, LED light sources are widely used in lighting fixtures due to their low cost and energy consumption characteristics. As shown in Figure 2, the spectrum of common LED light sources can have a good response in the 380nm-700nm band. Closer to natural light. However, the intensity of light emitted by the light source in the 700nm-780nm band is relatively weak, and the luminous intensity of the light is less than 0.1, resulting in a low and weak spectrum of the light source in the 700nm-780nm band, which seriously affects the light efficiency of the lamp.

Based on the above problems, this application provides a light source that can supplement the spectrum of the 700nm to 780nm band, so that the spectrum of the light emitted by the light source is a spectrum of 380nm to 785nm, and the spectrum of the light source is close to the spectrum of natural light, thereby effectively improving the light intensity of the lamp. effect.

FIG. 3 is a schematic structural diagram of a light source provided by an embodiment of the present application.

The embodiment of the present application provides a light source 100, which may be an LED light source, and the light source 100 may be used in various lighting devices, such as indoor lamps, outdoor lamps, vehicle lamps, table lamps, or flashlights.

Referring to FIG. 3, the light source 100 includes a first light emitting element 10 and a second light emitting element 20, wherein the spectrum of the first light emitting element 10 includes at least the spectrum between 380nm and 700nm, that is, the first light emitting element 10 emits The light has a good intensity (at least greater than 0.2) between 380nm and 700nm. Specifically, for example, the first light-emitting element may be an existing LED lamp, that is, the spectrum of the first light-emitting element may have a better response in the 380nm-700nm band, while the spectral response between the 700nm-780nm band is relatively low. weak. Alternatively, the first light-emitting element may only have a spectral response in the 380nm-700nm band, but no spectral response in other bands.

Wherein, the spectrum of the second light-emitting element 20 is the spectrum of 700nm-785nm, that is, the light emitted by the second light-emitting element 20 has a better intensity (at least greater than 0.2) between 700nm-785nm.

The light source 100 is composed of a first light-emitting element 10 and a second light-emitting element 20, that is, the light emitted by the light source 100 is a combined light of the light emitted by the first light-emitting element 10 and the light emitted by the second light-emitting element 20, and the first light-emitting element The spectrum of 10 is the spectrum of 380nm-700nm band, the spectrum of the second light-emitting element 20 is the spectrum of 700nm-785nm band, then the spectrum of the light emitted by the light source 100 is the spectrum of 380nm-785nm, which realizes at least the spectrum of 700nm-780nm band It solves the problem of the low and weak spectrum of the existing light source in the 700nm-780nm band, and makes the spectrum of the light source 100 close to the full spectrum, that is, the spectrum of the light source 100 is close to the spectrum of natural light, thereby effectively improving the light source 100. The light effect improves the color reproduction of the light source 100, and improves the protection effect of the light source 100 on human eyes.

Wherein, it should be noted that the first light-emitting element 10 may be a light source made of specific chip-excited phosphor, or the first light-emitting element 10 may also be other light sources capable of emitting light with a spectrum at least including 380nm to 700nm. Can.

For example, the first light-emitting element 10 may be a light source made of a violet chip that excites mixed phosphors. Specifically, the mixed phosphors may include blue phosphors, green phosphors, and red phosphors, blue phosphors, green phosphors, and green phosphors. The pink and red phosphors can be mixed according to a certain ratio. Under the irradiation of the purple light emitted by the purple chip, the blue phosphor, green phosphor and red phosphor can emit blue light, green light and red light respectively. The mixed light of blue light, green light, red light and purple light emitted by the purple light chip can have a spectrum at least including the spectrum of 380nm-700nm.

The first light-emitting element 10 may be composed of one light-emitting element, or the first light-emitting element 10 may also be a light-emitting assembly formed by combining two or more light-emitting elements. In the embodiment of the present application, the first The specific composition of the light-emitting element 10 is not limited, and the spectrum of the first light-emitting element 10 can at least include the spectrum of 380nm-700nm.

In the embodiment of the present application, the second light-emitting element 20 may also be a light source made of specific chip-excited phosphor powder capable of emitting a spectrum of 380nm-700nm.

For example, in a possible implementation, the second light-emitting element 20 can be a light source made of red phosphors excited by a blue light chip. The red phosphors can emit red light under the excitation of blue light, and the red light and the blue light emitted by the blue chip The spectrum of the formed mixed light can be within the band of 700nm-785nm.

Specifically, as shown in FIG. 3 , the second light emitting element 20 is composed of four light emitting elements. For example, the four light emitting elements are respectively the first light emitting element 21 , the second light emitting element 22 , the third light emitting element 23 and the fourth light emitting element 24 .

Wherein, the spectrum of the first light-emitting element 21 is the first segment spectrum, the spectrum of the second light-emitting element 22 is the second segment spectrum, the spectrum of the third light-emitting element 23 is the third segment spectrum, and the spectrum of the fourth light-emitting element 24 is The spectrum is the fourth segment spectrum.

The first segmented spectrum, the second segmented spectrum, the third segmented spectrum and the fourth segmented spectrum are successively connected to form a spectrum of 700nm-785nm. That is to say, four kinds of light-emitting elements are used respectively, and the spectra of the four light-emitting elements can correspond to four parts in the 700nm-785nm band. After combining the four kinds of light-emitting elements, the second light-emitting element 20 can emit the spectrum in the 700nm-785nm band. For example, 700nm-785nm can be divided into four contiguous wavelength bands, and the spectra of the first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23 and the fourth light-emitting element 24 respectively correspond to the above four bands. In other words, four types of light-emitting elements are respectively supplemented in sections to finally realize the supplement of the 700nm-785nm wavelength band, which is easier to implement and also helps to reduce the design difficulty and cost of the second light-emitting element 20, thereby reducing the Difficulty and cost of realizing the entire light source 100 .

Wherein, the first segmented spectrum, the second segmented spectrum, the third segmented spectrum and the fourth segmented spectrum can be made into relatively uniform four-segment spectra, for example, the first segmented spectrum can be a spectrum of 700nm to 721nm, The second segment spectrum may be a spectrum of 720-741nm, the third segment spectrum may be a spectrum of 740nm-761nm, and the fourth segment spectrum may be a spectrum of 760nm-785nm.

The first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23, and the fourth light-emitting element 24 form the second light-emitting element 20, and the four light-emitting elements complement the four parts of 700nm-785nm relatively uniformly, which can reduce or avoid One or several light-emitting elements need to supplement the spectrum of a longer wavelength band, and increasing the complexity and cost of the light-emitting element helps to reduce the complexity of each light-emitting element, thereby reducing the design difficulty and manufacturing of the second light-emitting element 20. cost.

Wherein, the first light emitting element 21 , the second light emitting element 22 , the third light emitting element 23 and the fourth light emitting element 24 may be single-color red light beads.

Specifically, for example, the first light-emitting element 21 may be a monochromatic red light bead with a spectrum of 700nm to 721nm; the second light-emitting element 22 may be a monochromatic red light bead with a spectrum of 720nm to 741nm; The element 23 may be a monochromatic red light bead with a spectrum of 740nm-761nm, and the fourth light-emitting element 24 may be a monochromatic red light bead with a spectrum of 760nm-785nm. In this way, through the monochromatic red light beads in four different bands, the spectrum in the 700nm-785nm band can be effectively supplemented.

Among them, the above-mentioned monochromatic red light bead can be an LED light bead excited by a chip in the 700nm-785nm band, specifically, for example, it can be an LED light bead excited by a blue chip, and the cost of the LED light bead excited by a blue chip It is relatively low, which can further reduce the cost of implementing spectrum supplementation in the 700nm-785nm band, and reduce the cost of the light source 100 .

In the embodiment of the present application, the ratio range of the power of the first light-emitting element 10 to the power of the second light-emitting element 20 can be (1-20):1, so that the spectrum of the first light-emitting element 10 and the spectrum of the second light-emitting element can be The spectra of 20 have better connectivity, so that the overall spectrum of the light source 100 is more uniform, which also makes the overall spectrum of the light source 100 have better continuity, which can further improve the overall light efficiency of the light source 100, and improve the light source 100. eye comfort.

In the embodiment of the present application, the ratio of the power of the first light-emitting element 21, the power of the second light-emitting element 22, the power of the third light-emitting element 23, and the power of the fourth light-emitting element 24 may be (1-5): (1 ～5): (1～5): (1～5), the power ratio of the first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23 and the fourth light-emitting element 24 within the ratio range can be better The implementation of the spectrum complements the 700nm-780nm band, so that the spectrum continuity of the light source 100 in this band is better, thereby further improving the light efficiency of the light source 100 .

FIG. 4 is a spectrum diagram of a light source provided in an embodiment of the present application.

Wherein, in a possible implementation manner, the ratio of the power of the first light emitting element 21, the power of the second light emitting element 22, the power of the third light emitting element 23 and the power of the fourth light emitting element 24 may be 1:1: 2:1. Referring to Fig. 4, the first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23, and the fourth light-emitting element 24 whose power ratio is at this ratio can achieve a relatively better spectrum in the range of 700nm to 780nm. The supplementary effect of this band makes the spectral intensity in this band higher, and the spectrum in this band range has relatively better continuity and uniformity, so that the overall spectrum of the light source 100 is more uniform and continuous, and the light efficiency of the light source 100 can be further improved. .

It should be noted that the number of the first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23 and the fourth light-emitting element 24 that the second light-emitting element 20 may include may all be one, or one or several of them The number of light-emitting elements can also be two or more.

Specifically, the number of the first light emitting element 21 , the second light emitting element 22 , the third light emitting element 23 and the fourth light emitting element 24 included in the second light emitting element 20 may be determined by the power of the light emitting element itself.

For example, when the power of the first light-emitting element 21, the power of the second light-emitting element 22, the power of the third light-emitting element 23, and the power of the fourth light-emitting element 24 are all 1w, in order to make the power ratio of the four be the above-mentioned ratio , the ratio of the numbers of the first light emitting elements 21 , the second light emitting elements 22 , the third light emitting elements 23 and the fourth light emitting elements 24 may be 1:1:2:1.

Or, for example, when the power of the first light emitting element 21, the power of the second light emitting element 22 and the power of the fourth light emitting element 24 are all 1w, and the power of the third light emitting element 23 is 2w, the first light emitting element 21, The ratio of the numbers of the second light emitting elements 22 , the third light emitting elements 23 and the fourth light emitting elements 24 may be 1:1:1:1.

FIG. 5 is a spectrum diagram of another light source provided in the embodiment of the present application.

In another possible implementation manner, the ratio of the power of the first light emitting element 21, the power of the second light emitting element 22, the power of the third light emitting element 23 and the power of the fourth light emitting element 24 may be 1:1:1 :1. Referring to Fig. 5, the first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23 and the fourth light-emitting element 24 whose power ratio is this ratio can achieve better spectrum in the range of 700nm-780nm. The supplementary effect makes the intensity of the spectrum in this wavelength range higher, so that the spectrum of the light source 100 has better continuity and uniformity, and further improves the light efficiency of the light source 100 .

In the embodiment of the present application, the light intensities of the first light emitting element 21 , the second light emitting element 22 , the third light emitting element 23 and the fourth light emitting element 24 may all be greater than 0.3. Ensure that the first light-emitting element 21 , the second light-emitting element 22 , the third light-emitting element 23 and the fourth light-emitting element 24 have high spectral intensity, thereby effectively improving the spectral intensity of the light source in the 700nm-780nm band. Ensure the supplementary effect of the first light emitting element 21, the second light emitting element 22, the third light emitting element 23 and the fourth light emitting element 24 in each segment spectrum, further improve the overall spectral uniformity and continuity of the light source 100, and improve the light source 100 light effect.

Fig. 6 is a schematic diagram of the arrangement of a first light-emitting element and a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element provided in an embodiment of the present application. Fig. 7 is a schematic diagram of a light-emitting element provided in an embodiment of the present application A schematic diagram of another arrangement of the first light-emitting element and the first light-emitting element, the second light-emitting element, the third light-emitting element, and the fourth light-emitting element.

Wherein, the arrangement of the first light-emitting element 10 , the first light-emitting element 21 , the second light-emitting element 22 , the third light-emitting element 23 and the fourth light-emitting element 24 can be various. For example, the first light-emitting element 10 and the first light-emitting element 21 , the second light-emitting element 22 , the third light-emitting element 23 and the fourth light-emitting element 24 may be sequentially arranged in rows or columns.

Or, referring to FIG. 6 , the first light-emitting element 10, the first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23, and the fourth light-emitting element 24 can be evenly distributed to form a row, so that the light source 100 is a long strip Structure.

Or, as shown in FIG. 7, the first light-emitting element 10, the first light-emitting element 21, the second light-emitting element 22, the third light-emitting element 23, and the fourth light-emitting element 24 can also take one or several of them as the center of the circle, and the rest The uniform distribution around the center forms a ring.

Alternatively, the first light emitting element 10, the first light emitting element 21, the second light emitting element 22, the third light emitting element 23 and the fourth light emitting element 24 can also be arranged in other regular or irregular arrangements, the first light emitting element 10 The arrangement of the first light-emitting element 21 , the second light-emitting element 22 , the third light-emitting element 23 and the fourth light-emitting element 24 can be selected and set according to specific scene requirements.

Fig. 8 is a schematic structural diagram of a lamp provided in an embodiment of the present application,

The embodiment of the present application also provides a lamp 200. The lamp 200 can be an indoor lamp, an outdoor lamp 2, a car lamp, a table lamp, etc., as shown in FIG. , the light source 100 may be disposed on the lamp housing 210 .

It should be understood that the lamp 200 may also include other structural components, such as electrical connection wires, circuit boards, controllers and other structural components capable of realizing the functions of the lamp 200 .

Wherein, the shape of the lamp housing 210 can be circular, rectangular or other regular or irregular shapes. Specifically, the shape and size of the lamp housing 210 and the lamp 200 can be selected and set according to actual needs, which are not described in this application. limit.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientation or position shown in the drawings The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process comprising a series of steps or units, A method, system, product or device is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to the process, method, product or device.

Unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be It can be directly connected or indirectly connected through an intermediary, and can be an internal connection between two elements or an interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. A light source, comprising: a first light emitting member and a second light emitting member;

the spectrum of the first light-emitting part at least comprises a spectrum of 380 nm-700 nm, and the spectrum of the second light-emitting part is a spectrum of 700 nm-785 nm.

2. The light source of claim 1, wherein the second light-emitting member comprises a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element;

the spectrum of the first light-emitting element is a first sectional spectrum, the spectrum of the second light-emitting element is a second sectional spectrum, the spectrum of the third light-emitting element is a third sectional spectrum, and the spectrum of the fourth light-emitting element is a fourth sectional spectrum;

the first sectional spectrum, the second sectional spectrum, the third sectional spectrum and the fourth sectional spectrum are sequentially connected to form a spectrum of 700 nm-785 nm.

3. The light source of claim 2, wherein the first segmented spectrum is a spectrum of 700nm to 721 nm;

the second sectional spectrum is a spectrum of 720 nm-741 nm;

the third sectional spectrum is 740 nm-761 nm spectrum;

the fourth segment spectrum is 760 nm-785 nm spectrum.

4. A light source as recited in claim 3, wherein the ratio of the power of said first light-emitting element, the power of said second light-emitting element, the power of said third light-emitting element and the power of said fourth light-emitting element is (1 to 5): (1-5): (1-5): (1-5).

5. The light source of claim 4, wherein the ratio of the power of the first light emitting member, the power of the second light emitting member, the power of the third light emitting member, and the power of the fourth light emitting member is 1:1:1:1.

6. the light source of claim 5, wherein the ratio of the power of the first light emitting member, the power of the second light emitting member, the power of the third light emitting member, and the power of the fourth light emitting member is 1:1:2:1.

7. a light source as recited in any one of claims 2-6, wherein said first light-emitting element, said second light-emitting element, said third light-emitting element and said fourth light-emitting element are monochromatic red or infrared beads;

the red light lamp bead is an LED lamp bead excited by a 700 nm-785 nm wave band chip.

8. A light source as recited in any one of claims 2-6, wherein light intensities of each of the first light-emitting element, the second light-emitting element, the third light-emitting element and the fourth light-emitting element is greater than 0.3.

9. A light source according to any one of claims 1-6, wherein the ratio of the power of the first light emitting element to the power of the second light emitting element is (1-20): 1.

10. a luminaire comprising at least a lamp housing and a light source as claimed in any one of the preceding claims 1-9, said light source being arranged on said lamp housing.

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