Multi-light-source combined lamp

Abstract

The utility model provides a multi-light-source synthetic lamp, which comprises a plurality of light sources, each light source comprises a first wave band chip and at least one second wave band chip, the emission peak wavelength of the first wave band chip is in the wave band range of 380nm to 470nm, and the emission peak wavelength of the second wave band chip is in the wave band range of 380nm to 470nm. The light source comprises a first waveband chip and a second waveband chip, the emission peak wavelength of the second waveband chip is in the waveband range of 700nm to 800nm, the light source meets the requirement that a plurality of light sources with different emission peak wavelengths of the second waveband chip exist, and the first waveband chips of the light sources are the same, so that the arrangement that the plurality of light sources have different waveband coverage ranges is realized; and the light sources of the plurality of second wave band chips with different emission peak wavelengths are combined to emit light subsequently, so that the coverage of the multi-light-source combined lamp on the red light wave band is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lighting, especially a multi-light source synthetic type lamp. BACKGROUND

[0002] With the continuous development of LED lighting technology, lighting not only needs to be energy-efficient, but also the light color quality of health and comfort is increasingly concerned by people. In view of the continuous emergence of new technologies, people put forward higher requirements for lighting light quality and comfort, especially the requirements for healthy lighting are continuously improved.

[0003] Full-spectrum lighting is the goal of current LED lighting based on the demand of healthy lighting. Full-spectrum lighting, as the name implies, is a lighting method that contains all visible light, ultraviolet light and infrared light in the spectrum. Its biggest feature is to approach the characteristics of natural spectrum. Compared with traditional LED lighting, full-spectrum lighting is closer to the color balance of sunlight, which can provide more real and natural lighting effect. This lighting method has a positive impact on people's visual health and comfort, and also helps to improve work efficiency and reduce fatigue. Full-spectrum lighting has a wide range of applications, including but not limited to medical, education, entertainment and construction fields. At the same time, with the continuous development of technology and the continuous improvement of people's awareness of health and environmental protection, the application range of full-spectrum lighting will further expand, for example, with the continuous development of artificial intelligence technology, intelligent control of full-spectrum lighting will become an important development direction in the future.

[0004] Reference Figure 1 As shown in the figure, the visible spectrum of sunlight at 4000k color temperature is shown, and when the corresponding emission spectrum of the full-spectrum lamp is more consistent with the sunlight spectrum, it means that the actual lighting effect of the full-spectrum lamp is more consistent with the sunlight. Reference Figures 2A to 2C As shown in the figure, the corresponding emission spectrum of three lighting lamps on the market is shown respectively.

[0005] Corresponding to Figure 2A It is a schematic diagram of the emission spectrum of an existing three-primary color fluorescent lamp, reference Figure 2A It can be seen that the continuity of the emission spectrum of the three-primary color fluorescent lamp is poor, and the main emission wavelength band is concentrated in the blue and green wavelength band of 380nm to 570nm, while the red light part with a wavelength of 625nm to 830nm is very weak, which is very different from the sunlight spectrum.

[0006] Corresponding to Figure 2B It is a schematic diagram of the emission spectrum of an existing metal halide lamp, reference Figure 2BIt can be seen that the continuity of the light spectrum of the gold halide lamp is still poor, and there are two obvious wave peaks at wavelengths of 540nm and 600nm, the intensity in the remaining wave band range is not much different, but the intensity in the red light part is still weak, and there is a significant difference from the sunlight spectrum.

[0007] Corresponding to Figure 2C The light spectrum of the LED lamp has strong continuity compared with the three-primary-color fluorescent lamp and the gold halide lamp, but the intensity of the wave band in the red light part is too weak to be comparable with the sunlight spectrum.

[0008] It can be seen that the actual light emitting effect of many lamps on the market is far from the sunlight, and it is difficult to achieve the full spectrum lighting effect expected by people. For the LED lamp, by reasonably setting the number of light emitting chips, the emission peak wavelength of each light emitting chip and the wavelength of the corresponding fluorescent glue, the sunlight can be simulated in theory. However, in fact, the light spectrum of the LED lamp is far from the sunlight spectrum, because the wave band range of visible light is particularly wide, and the LED lamp needs to set multiple light emitting chips with different emission peak wavelengths to cover the entire visible light region, and the half wave width of each light emitting chip needs to be reasonably set to ensure the continuity of the corresponding light spectrum. In addition, due to the different intensities of each wave band, the power of each light emitting chip also needs to be reasonably controlled. Since the intensity of the sunlight in the red light part is large, when the power of the LED lamp satisfies the intensity of the light emitting chip with the emission peak wavelength in the red light band, the power of the light emitting chip with the emission peak wavelength in the blue light band is too large. When the power of the LED lamp is set in the appropriate range of the light emitting chip with the emission peak wavelength in the blue light band, so that the corresponding light spectrum can approach the sunlight spectrum in the blue light band, the light emitting chips with the emission peak wavelength in the red light band cannot reach the appropriate power, resulting in that the spectral continuity of the corresponding light spectrum in the red light band cannot be guaranteed, and the corresponding emission peak cannot approach the sunlight, so that the actual light spectrum in the red light band is far from the sunlight. That is to say, the existing full spectrum lamp is difficult to approach the sunlight in each wave band. In other words, although it is not difficult to realize the full spectrum lighting of simulating sunlight in theory, the current full spectrum lighting lamp still has a very low degree of reduction of the sunlight spectrum, and at most can only approach the sunlight in a small wave band range, such as the blue light band range. Practical new type content

[0009] The purpose of the present application is to provide a multi-light source synthetic lamp, wherein the light spectrum of the multi-light source synthetic lamp can approach the sunlight spectrum in the visible light band, so as to achieve the full spectrum lighting effect.

[0010] The utility model discloses a multi-light source synthetic formula lamp, wherein the multi-light source synthetic formula lamp covers the visible light wave band in the way of the overall light emission of the multi-light source, and the number of the light emitting chip with the emission peak in the red light wave band in the single light source can be reduced, so that the power of the single light source can be set.

[0011] The utility model discloses a multi-light source synthetic formula lamp, wherein the multi-light source synthetic formula lamp covers the visible light wave band in the way of the overall light emission of the multi-light source, and the number of the light emitting chip with the emission peak in the red light wave band in the single light source can be reduced, so that the power of the single light source can be set.

[0012] The utility model discloses a multi-light source synthetic formula lamp, wherein the multi-light source synthetic formula lamp covers the visible light wave band in the way of the overall light emission of the multi-light source, and the number of the light emitting chip with the emission peak in the red light wave band in the single light source can be reduced, so that the power of the single light source can be set.

[0013] The utility model discloses a multi-light source synthetic formula lamp, wherein the multi-light source synthetic formula lamp covers the visible light wave band in the way of the overall light emission of the multi-light source, and the number of the light emitting chip with the emission peak in the red light wave band in the single light source can be reduced, so that the power of the single light source can be set.

[0014] The utility model discloses a multi-light source synthetic formula lamp, wherein the multi-light source synthetic formula lamp covers the visible light wave band in the way of the overall light emission of the multi-light source, and the number of the light emitting chip with the emission peak in the red light wave band in the single light source can be reduced, so that the power of the single light source can be set.

[0015] Another purpose of the utility model lies in providing a multi-light source synthetic type lamp, wherein the number of the second wave band chip in each light source needs only one, and the light source combination emits light based on the second wave band chip with different emission peak wavelength, so as to guarantee the coverage of the multi-light source synthetic type lamp to the red light wave band, so as to set the power of each light source reasonably, and meet the coverage requirement of full spectrum light emission to the red light wave band while setting the power of the first wave band chip and the second wave band chip, so as to realize the full spectrum light emission while controlling the circuit design cost.

[0016] Another purpose of the utility model lies in providing a multi-light source synthetic type lamp, wherein the number of the second wave band chip with different emission peak wavelength is at least four, so as to correspond to the wave peak distribution characteristics of the sunlight spectrum in the red light wave band, so that the light emission spectrum of the multi-light source synthetic type lamp can approach the sunlight spectrum.

[0017] Another purpose of the utility model lies in providing a multi-light source synthetic type lamp, wherein the multi-light source synthetic type lamp matches the light source with the wavelength conversion material with the emission peak wavelength in the wave band range of 380nm-710nm, so as to further match the corresponding sunlight spectrum, so as to enhance the coverage degree of the multi-light source synthetic type lamp to the wave band range of 380nm-710nm based on the light emission of the first wave band chip irradiating on the wavelength conversion material, and enhance the proportion of the red light part of the light emission spectrum of the multi-light source synthetic type lamp based on the light emission of the second wave band chip irradiating on the wavelength conversion material, so as to enhance the spectral continuity, so that the light emission spectrum of the multi-light source synthetic type lamp approaches the sunlight spectrum more, and the full spectrum illumination effect is improved.

[0018] Another purpose of the utility model lies in providing a multi-light source synthetic type lamp, wherein the emission peak wavelength of the second wave band chip is selected from one of 700nm±5nm, 715nm±5nm, 730nm±5nm, 738nm±5nm, 755nm±5nm and 775nm±5nm, so as to match the wave peak value of the sunlight spectrum in the red light wave band, so that the light emission spectrum of the multi-light source synthetic type lamp approaches the sunlight spectrum more, and the full spectrum illumination requirement is realized.

[0019] The utility model discloses a further purpose lies in providing a multi -light source synthetic formula lamp, wherein the multi -light source synthetic formula lamp preferably includes six different emission peak wavelength's second wave band chip, the emission peak wavelength of corresponding six second wave band chip is 700nm+5nm, 715nm+5nm, 730nm+5nm, 738nm+5nm, 755nm+5nm and 775nm+5nm respectively, thereby make the overall luminous spectrum of multi -light source synthetic formula lamp can be close to the wave crest of the red light wave band of sunlight spectrum, reach the illumination effect comparable to sunlight.

[0020] The utility model discloses a further purpose lies in providing a multi -light source synthetic formula lamp, wherein the multi -light source synthetic formula lamp preferably includes at least six light sources, and six second wave band chips of different emission peak wavelength belong to six light sources, so as to facilitate the reasonable setting of the power of each light source.

[0021] The utility model discloses a further purpose lies in providing a multi -light source synthetic formula lamp, wherein each light source includes at least two first wave band chips, wherein the emission peak wavelength of at least two first wave band chips in the light source is different, so as to match the wave crest of sunlight spectrum, so that the luminous spectrum of the multi -light source synthetic formula lamp is more close to sunlight spectrum.

[0022] The utility model discloses a further purpose lies in providing a multi -light source synthetic formula lamp, wherein each light source preferably includes four first wave band chips of different emission peak wavelength, wherein the half wave width of at least one first wave band chip is greater than or equal to 14nm, so as to improve the continuity of the corresponding spectrum of the multi -light source synthetic formula lamp, effectively reduce the gap and sharp peak in the spectrum, so that the light source can cover the corresponding emission peak wave band, thereby better restoring the corresponding sunlight spectrum.

[0023] The utility model discloses a further purpose lies in providing a multi -light source synthetic formula lamp, wherein each light source has at least two layers of fluorescent powder layer that are cured in sequence, wherein the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the fluorescent powder layer cured first is greater than the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the fluorescent powder layer cured later, so as to avoid the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the fluorescent powder layer cured first falling into the wave crest interval of the excitation spectrum of the wavelength conversion material with the highest mass ratio in the fluorescent powder layer cured later, thereby reducing the probability of secondary excitation of the light source and the radiant energy involved in secondary excitation, and thus facilitating the calculation and configuration of the proportion of each wavelength conversion material when calculating and configuring the proportion of each wavelength conversion material according to the target luminous spectrum, and simplifying the calculation and configuration of the proportion of each wavelength conversion material.

[0024] Another object of the present application is to provide a multi-light source synthetic lamp, wherein the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the first cured phosphor layer is greater than the emission peak wavelength of any wavelength conversion material in the second cured phosphor layer, so as to avoid the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the first cured phosphor layer falling into the wave peak interval of the excitation spectrum of any wavelength conversion material in the second cured phosphor layer, thereby further reducing the probability of secondary excitation of the light source and the radiation energy participating in the secondary excitation.

[0025] Another object of the present application is to provide a multi-light source synthetic lamp, wherein the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the first cured phosphor layer is greater than the emission peak wavelength of any wavelength conversion material in the second cured phosphor layer, so as to avoid the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the first cured phosphor layer falling into the wave peak interval of the excitation spectrum of any wavelength conversion material in the second cured phosphor layer, thereby further reducing the probability of secondary excitation of the light source and the radiation energy participating in the secondary excitation.

[0026] According to an aspect of the present application, the present application provides a multi-light source synthetic lamp, wherein the multi-light source synthetic lamp comprises:

[0027] a first waveband chip, wherein the emission peak wavelength of the first waveband chip is in the waveband range of 380nm to 470nm;

[0028] at least one second waveband chip, wherein the emission peak wavelength of the second waveband chip is in the waveband range of 700nm to 800nm, wherein the light source satisfies that there are multiple light sources with different emission peak wavelengths of the second waveband chip, and the first waveband chip of each light source is the same.

[0029] In an embodiment, the number of second waveband chips with different emission peak wavelengths is at least four.

[0030] In an embodiment, the emission peak wavelength of the second waveband chip is selected from one of 700nm±5nm, 715nm±5nm, 730nm±5nm, 738nm±5nm, 755nm±5nm and 775nm±5nm.

[0031] In an embodiment, the multi-light source synthetic lamp comprises six second waveband chips with different emission peak wavelengths, and the emission peak wavelengths of the six second waveband chips are 700nm±5nm, 715nm±5nm, 730nm±5nm, 738nm±5nm, 755nm±5nm and 775nm±5nm, respectively.

[0032] In an embodiment, wherein the multi-light-source synthetic lamp comprises at least six of the light sources, six of the second waveband chips with different emission peak wavelengths are distributed to the six light sources.

[0033] In an embodiment, wherein the multi-light-source synthetic lamp matches the light sources with wavelength conversion materials with emission peak wavelengths in the waveband range of 380nm-710nm.

[0034] In an embodiment, wherein the wavelength conversion material is phosphor, and wherein the phosphor with emission peak wavelength at 495nm±5nm, 535nm±5nm, 655nm±5nm, 700nm±5nm is selected.

[0035] In an embodiment, wherein each of the light sources comprises four of the first waveband chips with different emission peak wavelengths, and wherein the half wave width of at least one of the first waveband chips is greater than or equal to 14nm.

[0036] In an embodiment, wherein the multi-light-source synthetic lamp comprises a substrate, wherein the first waveband chips and the second waveband chips are carried on the substrate, wherein each of the light sources comprises at least two layers of phosphor layers which are cured in sequence in the light emitting path of the first waveband chips and the second waveband chips, wherein two adjacent layers of the at least two layers of phosphor layers cured in sequence are distinguished as the earlier cured layer and the later cured layer, the later cured layer of the phosphor layers is cured on the earlier cured layer of the phosphor layers, each of the layers of the phosphor layers comprises at least one of the wavelength conversion materials, and the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the earlier cured layer of the phosphor layers is greater than the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the later cured layer of the phosphor layers.

[0037] In an embodiment, wherein the first waveband chips and the second waveband chips of the same light source are carried on the substrate in series and / or in parallel.

[0038] The further purposes and advantages of the present application will be more fully apparent from the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a schematic diagram of the spectrum of sunlight.

[0040] Figure 2A is a schematic diagram of the spectrum of light emitted by an existing three-primary-color fluorescent lamp.

[0041] Figure 2B is a schematic diagram of the spectrum of light emitted by an existing metal halide lamp.

[0042] Figure 2CA light spectrum diagram of an existing LED lamp.

[0043] Figure 3 A light spectrum diagram of one light source of a multi-light source synthetic lamp according to an embodiment of the present utility model.

[0044] Figure 4 A light spectrum diagram of one light source of the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0045] Figure 5 A light spectrum diagram of one light source of the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0046] Figure 6 A light spectrum diagram of one light source of the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0047] Figure 7 A light spectrum diagram of one light source of the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0048] Figure 8 A light spectrum diagram of one light source of the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0049] Figure 9 A light spectrum diagram of the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0050] Figure 10 A CRI color rendering index diagram of the light generated by the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0051] Figure 11 A principle structure diagram of one light source of the multi-light source synthetic lamp according to the above embodiment of the present utility model.

[0052] Figure 12 A cross-sectional structure diagram of one light source of the multi-light source synthetic lamp according to the above embodiment of the present utility model. DETAILED DESCRIPTION

[0053] The following description is provided to enable any person skilled in the art to practice the present utility model. The preferred embodiments in the following description are only examples of implementing the present utility model and other obvious modifications can be made by those skilled in the art. The basic principles defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present utility model.

[0054] Those skilled in the art should understand that in the disclosure of the utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0055] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0056] With reference to the description of the drawings of the utility model Figures 3 to 12 , the utility model provides a multi -light source synthetic formula lamp, wherein the light spectrum of the multi -light source synthetic formula lamp can be close to the sunlight spectrum in the visible light band, to reach full spectrum lighting effect.

[0057] Specifically, wherein the multi -light source synthetic formula lamp has the working thought that the multiple light sources have different wave band coverage ranges, when each light source illuminates, the overall light emitting effect of each light source can be close to sunlight, the light spectrum of the multi -light source synthetic formula lamp can cover the visible light band, to reach full spectrum lighting effect, and based on the overall light emitting of multiple light sources, the number of light emitting chips with emission peak value in the red light band in a single light source can be reduced, and based on the overall light emitting of multiple light sources, light emitting chips with different emission peak values in the red light band are arranged in multiple light sources, and then based on the combined light emitting of multiple light sources, the coverage of the red light band is realized, so that the actual light emitting effect of the multi -light source synthetic formula lamp can be close to sunlight, to reach full spectrum lighting effect.

[0058] In detail, wherein the multi -light source synthetic formula lamp includes multiple light sources 10, wherein the light source 10 includes a first wave band chip 11 and at least one second wave band chip 12, wherein the emission peak wavelength of the first wave band chip 11 is in the wave band range of 380nm to 470nm, wherein the emission peak wavelength of the second wave band chip 12 is in the wave band range of 700nm to 800nm, wherein the light source 10 satisfies that there are multiple light sources 10 with different emission peak wavelengths of the second wave band chip 12, so as to realize the setting of multiple light sources 10 with different wave band coverage ranges, so that the multi -light source synthetic formula lamp covers each wave band based on the common light emitting of multiple light sources 10.

[0059] It is worth mentioning that, in the multi-light-source synthetic lamp, the second waveband chips 12 of the multiple light sources 10 cover different emission peak wavebands, and the number of the second waveband chips 12 in each light source 10 is at least one, that is, the number of the second waveband chips 12 in each light source 10 can be reduced, so as to reasonably set the power of each light source 10, and take into account the power settings of the first waveband chips 11 and the second waveband chips 12.

[0060] In particular, in each light source 10, the number of the second waveband chips 12 is at least one, and the light source is combined to emit light based on multiple second waveband chips 12 with different emission peak wavelengths, so as to ensure that the multi-light-source synthetic lamp covers the red light waveband, so as to facilitate reasonable power setting of each light source 10, take into account the power settings of the first waveband chips 11 and the second waveband chips 12, and meet the coverage requirements of full-spectrum light emission on the red light waveband, while realizing full-spectrum light emission and controlling the circuit design cost.

[0061] It is worth mentioning that, in each light source 10, the number of the second waveband chips 12 is at least one, so that the overall number of chips of each light source 10 is reduced, which can effectively reduce the size of each light source 10, and facilitate packaging and corresponding wiring of each light source 10.

[0062] It is worth mentioning that, in the multi-light-source synthetic lamp, the number of the second waveband chips 12 with different emission peak wavelengths is at least four, so as to correspond to the peak distribution characteristics of the solar spectrum in the red light waveband, meet the peak-valley settings of the solar spectrum in the red light waveband, and make the emission spectrum of the multi-light-source synthetic lamp approach the solar spectrum.

[0063] In detail, the emission peak wavelength of the second waveband chip 12 is selected from one of 700nm±5nm, 715nm±5nm, 730nm±5nm, 738nm±5nm, 755nm±5nm and 775nm±5nm, so as to match the peak value of the solar spectrum in the red light waveband, so that the emission spectrum of the multi-light-source synthetic lamp is more close to the solar spectrum, and the full-spectrum lighting requirement is realized.

[0064] Preferably, in this embodiment of the utility model, wherein the multi -light source synthetic formula lamps and lanterns preferably includes six different emission peak wavelength's second wave band chip 12, the emission peak wavelength of corresponding six second wave band chip 12 is 700nm±5nm, 715nm±5nm, 730nm±5nm, 738nm±5nm, 755nm±5nm and 775nm±5nm respectively, so that the overall emission spectrum of the multi -light source synthetic formula lamps and lanterns can approach the peak value of the red light waveband of sunlight spectrum, to reach the lighting effect comparable to sunlight.

[0065] Preferably in this embodiment of the utility model, wherein the multi -light source synthetic formula lamps and lanterns preferably includes at least six light sources 10, and six second wave band chips 12 of different emission peak wavelength belong to six light sources 10, so as to facilitate the reasonable setting of the power of each light source.

[0066] Specifically corresponding to Figures 3 to 8 The corresponding emission spectrum of the six light sources 10 with second wave band chips 12 of different emission peak wavelengths is shown respectively.

[0067] Corresponding to Figure 3 The emission peak wavelength of the second wave band chip 12 of the light source 10 is 700nm±5nm, and the corresponding spectrum has a peak near 700nm.

[0068] Corresponding to Figure 4 The emission peak wavelength of the second wave band chip 12 of the light source 10 is 715nm±5nm, and the corresponding spectrum has a peak near 715nm.

[0069] Corresponding to Figure 5 The emission peak wavelength of the second wave band chip 12 of the light source 10 is 730nm±5nm, and the corresponding spectrum has a peak near 730nm.

[0070] Corresponding to Figure 6 The emission peak wavelength of the second wave band chip 12 of the light source 10 is 738nm±5nm, and the corresponding spectrum has a peak near 738nm.

[0071] Corresponding to Figure 7 The emission peak wavelength of the second wave band chip 12 of the light source 10 is 755nm±5nm, and the corresponding spectrum has a peak near 755nm.

[0072] Corresponding to Figure 8 The emission peak wavelength of the second wave band chip 12 of the light source 10 is 775nm±5nm, and the corresponding spectrum has a peak near 775nm.

[0073] Thus, by arranging the second waveband chips 12 with different emission peak wavelengths, each light source 10 can cover different waveband ranges, and subsequently, based on the combined light emission of each light source 10, the corresponding Figure 9 As shown, the multi-light-source synthetic lamp can meet the coverage requirement of full-spectrum light emission on the red light waveband, and approach the sunlight spectrum.

[0074] Further, each light source 10 includes at least two first waveband chips 11, wherein the emission peak wavelengths of the at least two first waveband chips 11 in the light source 10 are different, so as to match the wave peaks of the sunlight spectrum, so that the light emission spectrum of the multi-light-source synthetic lamp approaches the sunlight spectrum more.

[0075] In particular, each light source 10 preferably includes four first waveband chips 11 with different emission peak wavelengths, so as to meet the peak-valley arrangement of the corresponding sunlight spectrum, so that the multi-light-source synthetic lamp can rival the lighting effect of sunlight.

[0076] It is worth mentioning that the half-wave width of at least one first waveband chip 11 is greater than or equal to 14 nm, so as to improve the continuity of the corresponding spectrum of the multi-light-source synthetic lamp, effectively reduce the gaps and sharp peaks in the spectrum, so that the light source 10 can cover the corresponding emission peak waveband, thereby better restoring the corresponding sunlight spectrum.

[0077] In particular, in this embodiment of the present application, the first waveband chips 11 of each light source 10 are the same, for example, each light source 10 includes four first waveband chips 11 with different emission peak wavelengths, and the four first waveband chips of each light source 10 are the same as the four first waveband chips 11 of other light sources 10.

[0078] It is worth mentioning that in the present application, the coverage of the multi-light-source synthetic lamp on the blue light waveband can also be formed by the combined light emission of a plurality of light sources 10, in particular, the light source 10 includes a first waveband chip 11, and the emission peak wavelengths of the first waveband chips 11 of a plurality of light sources 10 are different, so as to realize the coverage of each waveband of the multi-light-source synthetic lamp based on the common light emission of a plurality of light sources 10. That is, in the present application, one light source 10 includes at least one first waveband chip 11 and one second waveband chip 12, and subsequently, based on the combined light emission of each light source 10, the full-spectrum lighting requirement is met.

[0079] Further, the multi-light-source synthetic lamp is matched with the wavelength conversion material having a peak emission wavelength in the range of 380nm-710nm to further match the corresponding sunlight spectrum, so as to improve the coverage of the multi-light-source synthetic lamp in the range of 380nm-710nm based on the light emitted by the first waveband chip 11 irradiating on the wavelength conversion material, and improve the proportion of the red light part of the light spectrum of the multi-light-source synthetic lamp by the light emitted by the second waveband chip 12 irradiating on the wavelength conversion material, enhance the spectral continuity, so that the light spectrum of the multi-light-source synthetic lamp is more close to the sunlight spectrum, and the full-spectrum lighting effect is improved.

[0080] Specifically, the multi-light-source synthetic lamp is matched with the wavelength conversion material having a peak emission wavelength in the range of 380nm-680nm to the first waveband chip 11, and the wavelength conversion material having a peak emission wavelength in the range of 680nm-710nm to the second waveband chip.

[0081] Further, the wavelength conversion material is selected from one of a fluorescent powder, a quantum dot and a quantum rod, wherein the quantum dot is a quasi-zero-dimensional nanomaterial composed of a small number of atoms, the three-dimensional size of the quantum dot is less than 100nm, and the appearance is just like a small point, the internal electron movement in each direction is limited, and the multi-level quantum confinement effect is particularly significant. Due to the quantum confinement effect, the quantum dot is called artificial atom because of the discontinuous electron energy level structure similar to that of an atom. The quantum rod refers to a one-dimensional material affected by the quantum confinement effect in two-dimensional directions.

[0082] Specifically, in this embodiment of the present application, the fluorescent powder is selected to match the wavelength conversion of the light source 10, wherein the fluorescent powder is dispersed in a colloid, and the mass ratio of the fluorescent powder having a peak emission wavelength in the range of 680nm-710nm to the colloid is preferably 10000:(40-55), so as to avoid too much fluorescent powder affecting the light emitting effect of the second waveband chip 12, and too little fluorescent powder failing to match the effect.

[0083] In this embodiment of the present application, the mass ratio of the fluorescent powder with an emission peak wavelength in the wavelength range of 470-520 nm to the colloidal substance is 19:10000, i.e. 1:526.3, which is varied within a range of ±15%, i.e. the mass ratio ranges from 1:605.2 to 1:447.4; the mass ratio of the fluorescent powder with an emission peak wavelength in the wavelength range of 510-560 nm to the colloidal substance is 28:10000, i.e. 1:357.1, which is varied within a range of ±15%, i.e. the mass ratio ranges from 1:410.7 to 1:303.535; the mass ratio of the fluorescent powder with an emission peak wavelength in the wavelength range of 630-680 nm to the colloidal substance is 43:10000, i.e. 1:232.6, which is varied within a range of ±15%, i.e. the mass ratio ranges from 1:267.49 to 1:197.7; the mass ratio of the fluorescent powder with an emission peak wavelength in the wavelength range of 630-680 nm to the colloidal substance is 48:10000, i.e. 1:208.3, which is varied within a range of ±15%, i.e. the mass ratio ranges from 1:239.5 to 1:177.1.

[0084] Specifically, the present application specifically selects fluorescent powders with an emission peak wavelength at 495nm±5nm, 535nm±5nm, 655nm±5nm, 700nm±5nm for wavelength conversion matching.

[0085] The mass ratio of the fluorescent powder with each emission peak wavelength to the colloidal substance is shown in the following table:

[0086] Colloidal Phosphor 495nm Phosphor 535nm Phosphor 655nm Phosphor 700nm 1 0.001856 0.002785 0.004332 0.004796

[0087] The mass ratio of the fluorescent powder to the colloidal substance is allowed to have a fluctuation range of ±15% based on the values shown in the above table, which is not limited by the present application.

[0088] In addition, in order to further show the high degree of restoration of the spectrum of the light generated by the multi-light-source synthetic lamp of this embodiment of the present application to the corresponding sunlight spectrum, Figure 9 The CRI color rendering index of the light generated by the multi-light-source synthetic lamp of this embodiment of the present application is also shown, wherein the CRI color rendering index of the light of the multi-light-source synthetic lamp corresponds to Figure 9 R1-R15 are all above 95.

[0089] Further reference is made to Figure 11, the principle structure of one of the light sources 10 of the multi-light source synthetic lamp is simply shown, wherein the multi-light source synthetic lamp comprises a substrate 13, wherein the first wave band chip 11 and the second wave band chip 12 are carried on the substrate 13, wherein the first wave band chip 11 and the second wave band chip 12 of the same light source 10 are carried on the substrate 13 in series and / or parallel state, wherein the substrate 13 is an insulator material, for example, an organic polymer material such as PCT, EMC, FR4, etc., or an inorganic material such as metal oxide ceramic, nitride ceramic, etc., which is not limited by the utility model.

[0090] Further, wherein the substrate 13 is provided with a line for connecting each of the first wave band chip 11 and the second wave band chip 12, the material of the line is an electrically conductive metal, for example, copper, silver, etc., or an alloy thereof, preferably copper, which is not limited by the utility model. Wherein each of the first wave band chip 11 and the second wave band chip 12 is bonded by the line on the substrate to form the structure of the first wave band chip 11 and the second wave band chip 12 in series and / or parallel, in the utility model, the first wave band chip 11 and the second wave band chip 12 of the same light source 10 are preferably provided in series.

[0091] Further, wherein the dam is obtained by point wall glue or the dam of organic material is formed by injection molding or the dam is obtained in an additive manner, so that the first wave band chip 11 and the second wave band chip 12 are located in the cavity structure formed by the dam, wherein the fluorescent glue is injected into the cavity structure to cover the light emitting path of the first wave band chip 11 and the second wave band chip 12 and is baked and cured. In some embodiments of the utility model, wherein the multi-light source synthetic lamp does not have the cavity structure, the mixed glue of each of the fluorescent powders is formed on the light emitting path of the first wave band chip 11 and the second wave band chip 12 by mold pressing or powder spraying.

[0092] Further, referring to the drawings of the description of the utility model Figure 12wherein each of the light sources 10 has at least two layers of phosphor 14 cured in the light emitting path of the first waveband chip 11 and the second waveband chip 12 in sequence, wherein two adjacent layers of phosphor 14 among the at least two layers of phosphor 14 cured in sequence are distinguished as a pre-cured layer of phosphor 14 and a post-cured layer of phosphor 14, wherein the post-cured layer of phosphor 14 is cured on the pre-cured layer of phosphor 14, wherein the pre-cured layer of phosphor 14 contains at least one wavelength conversion material, and the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the pre-cured layer of phosphor 14 is greater than the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the post-cured layer of phosphor 14, so as to avoid the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the pre-cured layer of phosphor 14 falling within the wave peak interval of the excitation spectrum of the wavelength conversion material with the highest mass ratio in the post-cured layer of phosphor 14, which corresponds to reducing the probability of secondary excitation of the light source 10 and the radiant energy involved in the secondary excitation, thus facilitating the simplification of the calculation and configuration of the proportion of each wavelength conversion material when calculating and configuring the proportion of each wavelength conversion material according to the target light spectrum, and facilitating the stability and consistency of the overall light efficiency and actual light emitting parameters of the light source 10.

[0093] In particular, the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the pre-cured layer of phosphor 14 is greater than the emission peak wavelength of any wavelength conversion material in the post-cured layer of phosphor 14, so as to avoid the emission peak wavelength of the wavelength conversion material with the highest mass ratio in the pre-cured layer of phosphor 14 falling within the wave peak interval of the excitation spectrum of any wavelength conversion material in the post-cured layer of phosphor 14, which corresponds to further reducing the probability of secondary excitation of the light source 10 and the radiant energy involved in the secondary excitation.

[0094] Further in some embodiments, the emission peak wavelength of any wavelength conversion material in the pre-cured layer of phosphor 14 is greater than the emission peak wavelength of any wavelength conversion material in the post-cured layer of phosphor 14, so as to avoid the emission peak wavelength of any wavelength conversion material in the pre-cured layer of phosphor 14 falling within the wave peak interval of the excitation spectrum of any wavelength conversion material in the post-cured layer of phosphor 14, which corresponds to avoiding the secondary excitation of the light source 10.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0096] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A multi-source composite luminaire, characterized in that, include: Multiple light sources, wherein each of the light sources includes: A first-band chip, wherein the emission peak wavelength of the first-band chip is in the band range of 380nm to 470nm; At least one second-band chip, wherein the emission peak wavelength of the second-band chip is in the band range of 700nm to 800nm, wherein the light source satisfies that there are multiple light sources with different emission peak wavelengths of the second-band chips, and the first-band chip of each light source is the same.

2. The multi-source composite luminaire according to claim 1, wherein the number of second band chips with different emission peak wavelengths is at least four.

3. The multi-source composite luminaire according to claim 2, wherein the emission peak wavelength of the second band chip is selected from one of 700nm±5nm, 715nm±5nm, 730nm±5nm, 738nm±5nm, 755nm±5nm and 775nm±5nm.

4. The multi-source composite luminaire according to claim 3, wherein the multi-source composite luminaire comprises six second-band chips with different emission peak wavelengths, and the emission peak wavelengths of the six second-band chips are 700nm±5nm, 715nm±5nm, 730nm±5nm, 738nm±5nm, 755nm±5nm and 775nm±5nm respectively.

5. The multi-source composite luminaire according to claim 4, wherein the multi-source composite luminaire comprises at least six of the light sources, and six second-band chips with different emission peak wavelengths belong to the six light sources.

6. The multi-source composite luminaire according to claim 4, wherein the multi-source composite luminaire uses a wavelength conversion material with an emission peak wavelength in the band range of 380nm-710nm to perform wavelength conversion matching on the light source.

7. The multi-source composite luminaire according to claim 6, wherein the wavelength conversion material is phosphor, wherein the phosphor selected has an emission peak wavelength of 495nm±5nm, 535nm±5nm, 655nm±5nm, or 700nm±5nm.

8. The multi-source composite luminaire according to claim 7, wherein each of the light sources comprises four first band chips with different emission peak wavelengths, and wherein at least one of the first band chips has a half-wavelength greater than or equal to 14 nm.

9. The multi-source composite luminaire according to claim 8, wherein the multi-source composite luminaire comprises a substrate, wherein the first band chip and the second band chip are supported on the substrate, wherein each of the light sources comprises at least two phosphor layers that are sequentially cured in the light emission paths of the first band chip and the second band chip, wherein two adjacent phosphor layers among the at least two phosphor layers cured in chronological order are distinguished by the order of curing, the phosphor layer cured later is cured on the phosphor layer cured earlier, each phosphor layer comprises at least one of the wavelength conversion materials, and the emission peak wavelength of the wavelength conversion material with the highest mass percentage in the phosphor layer cured earlier is greater than the emission peak wavelength of the wavelength conversion material with the highest mass percentage in the phosphor layer cured later.

10. The multi-light source composite luminaire according to claim 9, wherein the first band chip and the second band chip of the same light source are carried on the substrate in a series and / or parallel configuration.

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