Lamp and lamp bead containing purple light wave band

Abstract

The utility model provides a lamp pearl and lamps and lanterns contain purple light wave band, wherein the lamp pearl contains purple light wave band at least one first LED wafer, at least one second LED wafer and a substrate carrier, wherein the first LED wafer's emission peak wavelength is in 420nm to 490nm wave band range, wherein the second LED wafer's emission peak wavelength is in 360nm to 420nm wave band range, wherein the first LED wafer and the second LED wafer are carried substrate carrier and are connected with corresponding circuit on the substrate carrier, are enclosed in the substrate carrier, correspond in multiple the lamp pearl containing purple light wave band is carried substrate carrier on the light board of lamps and lanterns, and each second LED wafer is scattered with the lamp pearl containing purple light wave band on the light board, avoids the light spot of lamps and lanterns.

Description

Technical Field

[0001] This utility model relates to the field of lighting, and in particular to a lamp and a lamp bead containing violet light. Background Technology

[0002] With the continuous development of LED lighting technology, lighting not only needs to be highly efficient and energy-saving, but also increasingly focuses on healthy and comfortable light quality. In response to the emergence of new technologies, people have placed higher demands on the quality and comfort of lighting, especially regarding healthy lighting. Sunlight plays a vital role in human health, but due to changes in modern lifestyles, people are spending less time outdoors and relying excessively on artificial lighting. Therefore, there is a strong desire for artificial lighting to produce an effect similar to sunlight. Compared to traditional LED lighting, full-spectrum lighting is closer to sunlight, providing a more realistic, natural, and color-balanced lighting effect. This type of lighting has a positive impact on visual health and comfort, while also helping to improve work efficiency and reduce fatigue.

[0003] Furthermore, natural sunlight has a positive impact on human visual health, physiological health, and comfort. It not only affects human circadian rhythms but also has a very important positive influence on the development of emmetropia (normal vision). For example, violet light in the solar spectrum, when used properly, can promote vitamin D synthesis and improve mood, while also playing a role in the prevention and control of nearsightedness.

[0004] Therefore, currently commercially available full-spectrum LED lighting fixtures, in addition to white LED beads composed of a blue LED chip and a phosphor layer coated on the blue LED chip that is excited by the blue LED chip, also include violet LED beads. This is to supplement the violet band of the LED lighting fixture's emission spectrum, thus rationally utilizing violet light to enhance the effect of healthy lighting. Considering healthy lighting factors, the emission spectrum of the violet LED beads is set in the 360nm to 420nm band, balancing supplementation of the violet band with safety. However, since the emission spectrum of the violet LED beads involves the visible light band, when the violet LED beads emit light simultaneously with the white LED beads, it can cause regional light spots in the LED lighting fixture, i.e., light spots appear at the locations corresponding to the violet LED beads, affecting the visual lighting experience of the LED lighting fixture. Utility Model Content

[0005] One objective of this invention is to provide a lamp and a lamp bead containing a violet light band, wherein the lamp bead containing a violet light band is encapsulated with a violet light chip and a blue light chip. When multiple lamp beads containing a violet light band are mounted on the lamp board of the corresponding lamp, the violet light chip can be evenly distributed on the lamp board, thereby supplementing the violet light band while avoiding the lamp from producing light spots.

[0006] Another objective of this invention is to provide a lamp and a lamp bead containing a violet light band, wherein the lamp bead containing a violet light band can supplement the violet light band while preventing the lamp from producing light spots, thereby improving the health lighting effect and ensuring the lighting aesthetics.

[0007] Another objective of this invention is to provide a lamp and a lamp bead containing violet light, wherein the lamp bead containing violet light comprises at least one first LED chip and at least one second LED chip, wherein the emission peak wavelength of the first LED chip is in the range of 420nm to 490nm, and the emission peak wavelength of the second LED chip is in the range of 360nm to 420nm, wherein the first LED chip and the second LED chip are connected in series or in parallel and co-encapsulated in the same lamp bead, so that the corresponding emission spectrum of a single number of lamp beads can involve the violet light band, thereby meeting the design requirements of healthy lighting.

[0008] Another objective of this invention is to provide a lamp and a lamp bead containing a violet light band, wherein the lamp bead containing a violet light band includes a substrate carrier, wherein a first LED chip and a second LED chip are carried on the substrate carrier and connected to corresponding lines on the substrate carrier, and are co-encapsulated in the substrate carrier. When the substrate carrier is powered, the first LED chip and the second LED chip are powered to emit light, and the emission spectrum of the lamp bead containing a violet light band includes the emission spectrum of the second LED chip.

[0009] Another objective of this invention is to provide a lamp and a lamp bead containing a violet light band, wherein the violet light-containing lamp bead includes a phosphor layer, wherein the phosphor layer is solidified in the light-emitting path of the first LED chip and the second LED chip and contains at least one wavelength conversion material, and the excitation spectrum of the wavelength conversion material includes a wavelength band that overlaps with the emission spectrum of the first LED chip, so that the excitation of the wavelength conversion material based on the light emitted by the first LED chip enables the violet light-containing lamp bead to have a line emission spectrum over a wider wavelength range, and the design based on the proportional configuration of each wavelength conversion material is beneficial to forming an emission spectrum close to the solar spectrum.

[0010] Another objective of this invention is to provide a lamp and a lamp bead containing a violet light band. The lamp includes a lamp board and a plurality of lamp beads containing a violet light band, wherein each of the lamp beads containing a violet light band is mounted on one side of the lamp board. The emission spectrum of each of the lamp beads containing a violet light band involves the violet light band to meet the design requirements of healthy lighting. This eliminates the need for additional violet light lamp beads in the lamp. Furthermore, since the second LED chip is encapsulated within the violet light band lamp beads and is dispersed on the lamp board along with the violet light band lamp beads, it helps to avoid the aggregation of violet light chips and the generation of light spots in the lamp. Thus, it satisfies both healthy lighting requirements and aesthetic lighting.

[0011] According to one aspect of the present invention, a lamp is provided, wherein the lamp comprises:

[0012] One light board; and

[0013] A plurality of LED beads containing violet light, wherein each violet-light-containing LED bead comprises at least one first LED chip, at least one second LED chip, a substrate carrier, and a phosphor layer, wherein the emission peak wavelength of the first LED chip is in the wavelength range of 420nm to 490nm, and the emission peak wavelength of the second LED chip is in the wavelength range of 360nm to 420nm, wherein the first LED chip and the second LED chip are mounted on the substrate carrier and connected to corresponding lines on the substrate carrier for co-encapsulation within the substrate carrier, wherein the phosphor layer is solidified in the light emission path of the first LED chip and the second LED chip and contains at least one wavelength conversion material, and the excitation spectrum of the wavelength conversion material includes a wavelength band that overlaps with the emission spectrum of the first LED chip, so as to excite the wavelength conversion material based on the light emitted by the first LED chip, wherein each violet-light-containing LED bead is mounted on the lamp plate, such that each second LED chip is dispersed on the lamp plate along with the violet-light-containing LED bead.

[0014] In one embodiment, chips with a peak emission difference of ≥5nm are defined as different chips, and the luminaire has at least two LED beads of the first LED chip that are different from the first LED chip, containing the violet light band.

[0015] In one embodiment, the first LED chip is a single-peak LED chip with one and only one corresponding emission spectrum.

[0016] In one embodiment, the number of the first LED chips is multiple, and the multiple first LED chips are configured to have multiple emission peak wavelengths, and the minimum difference between each emission peak wavelength is greater than or equal to 5.

[0017] In one embodiment, the first LED chip is an LED chip with at least two emission peak wavelengths corresponding to the emission spectrum, and the minimum difference between each emission peak wavelength is greater than or equal to 5.

[0018] In one embodiment, the number of the first LED chips is multiple, wherein chips with an emission peak difference of ≥5nm are defined as different chips, and the lamp bead containing the violet light band includes at least two different first LED chips.

[0019] In one embodiment, the first LED chip and the second LED chip are connected in series.

[0020] In one embodiment, the first LED chip and the second LED chip are connected in parallel.

[0021] In one embodiment, the emission peak wavelength of the wavelength conversion material is in the band range of 420 nm to 700 nm.

[0022] According to another aspect of the present invention, the present invention provides a lamp bead containing a violet light band, wherein the lamp bead containing a violet light band includes:

[0023] At least one first LED chip, wherein the emission peak wavelength of the first LED chip is in the band range of 420nm to 490nm;

[0024] At least one second LED chip, wherein the emission peak wavelength of the second LED chip is in the band range of 360nm to 420nm;

[0025] A substrate carrier, wherein the first LED chip and the second LED chip are carried on the substrate carrier and connected to corresponding lines on the substrate carrier; and

[0026] A phosphor layer, wherein the phosphor layer is solidified in the light emission path of the first LED chip and the second LED chip and contains at least one wavelength conversion material, and the excitation spectrum of at least one wavelength conversion material contains a band that overlaps with the emission spectrum of the first LED chip, so as to excite the wavelength conversion material based on the light emitted by the first LED chip.

[0027] The further objectives and advantages of this invention will become fully apparent from the following description and accompanying drawings. Attached Figure Description

[0028] Figure 1A This is an exemplary packaging structure for an LED chip containing a violet light band, according to an embodiment of the present invention.

[0029] Figure 1BThis is another exemplary packaging structure for the lamp beads containing the violet light band according to the above embodiments of the present invention.

[0030] Figure 2A This is another exemplary packaging structure for the lamp beads containing the violet light band according to the above embodiments of the present invention.

[0031] Figure 2B This is another exemplary packaging structure for the lamp beads containing the violet light band according to the above embodiments of the present invention.

[0032] Figure 3 This is another exemplary packaging structure for the lamp beads containing the violet light band according to the above embodiments of the present invention.

[0033] Figure 4 This is another exemplary packaging structure for the lamp beads containing the violet light band according to the above embodiments of the present invention.

[0034] Figure 5A This is an exemplary lamp arrangement diagram of a lamp fixture including the lamp beads containing the ultraviolet light band according to the above embodiments of the present invention.

[0035] Figure 5B This is another exemplary lamp arrangement diagram of the lamp fixture including the lamp beads containing the violet light band according to the above embodiments of the present utility model. Detailed Implementation

[0036] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0037] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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, the above terms should not be construed as limitations on this utility model.

[0038] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0039] Refer to the accompanying drawings in the specification of this utility model. Figures 1A to 5B As shown, an violet-band LED 100 and a lamp including the violet-band LED 100 are illustrated in an embodiment of the present invention. The violet-band LED 100 emits white light while its corresponding emission spectrum also involves the violet band to meet the design requirements of healthy lighting. When multiple violet-band LEDs 100 are set on the same lamp board 200 and used as LEDs in the lamp, the lamp does not need to be additionally equipped with violet LEDs to meet the design requirements of healthy lighting. This effectively avoids the generation of light spots caused by violet LEDs, and while meeting the design requirements of healthy lighting, it also avoids affecting the visual perception of the lighting.

[0040] Specifically, the lamp bead 100 containing the violet light band is encapsulated with a violet light chip and a blue light chip. When multiple lamp beads 100 containing the violet light band are carried on the lamp plate 200 of the lamp, the violet light chips can be evenly distributed on the lamp plate 200, thereby supplementing the violet light band while avoiding the lamp from generating light spots.

[0041] In detail, the violet-band-containing LED bead 100 includes at least one first LED chip 10 and at least one second LED chip 20. The emission peak wavelength of the first LED chip 10 is in the range of 420nm to 490nm, and the emission peak wavelength of the second LED chip 20 is in the range of 360nm to 420nm. The first LED chip 10 and the second LED chip 20 are connected in series or in parallel and co-encapsulated in the same LED bead, so that the corresponding emission spectrum of a single number of LED beads can involve the violet band, meeting the design requirements of healthy lighting.

[0042] Specifically, the lamp bead 100 containing the violet light band includes a substrate carrier 30, wherein the first LED chip 10 and the second LED chip 20 are carried on the substrate carrier 30 and connected to corresponding lines on the substrate carrier 30, so as to be co-encapsulated in the substrate carrier 30. When the substrate carrier 30 is powered, the first LED chip 10 and the second LED chip 20 are powered to emit light, and the emission spectrum of the lamp bead 100 containing the violet light band can include the emission spectrum of the second LED chip 20 and involve the violet light band.

[0043] Furthermore, the violet-band LED bead 100 includes a phosphor layer 40, wherein the phosphor layer 40 is solidified in the light-emitting path of the first LED chip 10 and the second LED chip 20 and contains at least one wavelength conversion material, and the excitation spectrum of the wavelength conversion material includes a wavelength band that overlaps with the emission spectrum of the first LED chip 10, so that the excitation of the wavelength conversion material based on the light emitted by the first LED chip 10 enables the violet-band LED bead 100 to have a line emission spectrum over a wider wavelength range, and the proportional configuration design of each wavelength conversion material is conducive to forming an emission spectrum close to the solar spectrum.

[0044] Specifically, the emission peak wavelength of the wavelength conversion material is in the range of 420nm to 700nm, so as to enhance the emission peak richness of the lamp bead 100 containing violet light in the 420nm to 700nm band based on the excitation of the wavelength conversion material by the first LED chip 10.

[0045] It is worth mentioning that the first LED chip 10 can be a single-peak chip with one and only one peak in the corresponding spectrum, or a dual-quantum-well chip or a multi-quantum-well chip with at least two peaks in the corresponding spectrum. The number of first LED chips 10 in each of the lamp beads 100 containing the violet light band can be one or more. In the case of multiple first LED chips 10 in the lamp beads 100 containing the violet light band, the multiple first LED chips 10 can be the same chip or different chips. Whether the chips are of the same type is determined by the emission peak wavelength. When the emission peak difference is greater than or equal to 5nm, they are defined as different chips. In the case of the corresponding chip being a multi-quantum-well or dual-quantum-well, taking dual-quantum-well as an example, even if there is at least one emission peak difference of less than 5nm in two chips, but the emission peak difference of the other two emission peaks is greater than or equal to 5nm, they are also considered to be different chips.

[0046] Specifically, the wavelength conversion material of the phosphor layer 40 is excited by the first LED chip 10, and the phosphor layer 40 can be a single layer or two or more layers cured sequentially.

[0047] Corresponding to Figure 1A As shown, in this example packaging structure, the lamp bead 100 containing the violet light band encapsulates two first LED chips 10 and one second LED chip 20, wherein the two first LED chips 10 and the second LED chip 20 are connected in series, and the two first LED chips 10 are identical chips.

[0048] Corresponding to Figure 1B As shown, in this example packaging structure, the lamp bead 100 containing the violet light band is packaged with two first LED chips 10 and one second LED chip 20, wherein the two first LED chips 10 and the second LED chip 20 are connected in series, and the two first LED chips 10 are different chips and are divided into first LED chip 10A and first LED chip 10B.

[0049] Corresponding to Figure 2A As shown, in this example packaging structure, the lamp bead 100 containing the violet light band is packaged with two first LED chips 10 and one second LED chip 20, wherein the two first LED chips 10 and the second LED chip 20 are connected in parallel, and the two first LED chips 10 are identical chips.

[0050] Corresponding to Figure 2B As shown, in this example packaging structure, the lamp bead 100 containing the violet light band is packaged with two first LED chips 10 and one second LED chip 20, wherein the two first LED chips 10 and the second LED chip 20 are connected in parallel, and the two first LED chips 10 are different chips and are divided into first LED chip 10A and first LED chip 10B.

[0051] Corresponding to Figure 3 As shown, in this example packaging structure, the lamp bead 100 containing the violet light band is packaged with a first LED chip 10 and a second LED chip 20, wherein the first LED chip 10 and the second LED chip 20 are connected in series.

[0052] Corresponding to Figure 4 As shown, in this example packaging structure, the lamp bead 100 containing the violet light band is packaged with a first LED chip 10 and a second LED chip 20, wherein the first LED chip 10 and the second LED chip 20 are connected in parallel.

[0053] In other words, the number of chips packaged in the lamp bead 100 containing the violet light band does not constitute a limitation on this utility model. One of the lamp beads 100 containing the violet light band can package only one first LED chip 10 and one second LED chip 20, or package two or more first LED chips 10 and one second LED chip 20, or package two or more first LED chips 10 and two or more second LED chips 20, or package one first LED chip 10 and two or more second LED chips 20.

[0054] Preferably, the number of chips in the package of the lamp bead 100 containing the violet light band is less than or equal to 3, which helps to reduce process complexity and maintain the lamp bead 100 containing the violet light band with a low forward voltage Vf value, such as less than or equal to 9V, so as to help ensure the compatibility of the lamp bead 100 containing the violet light band with the driving power supply.

[0055] It is worth mentioning that when the lamp bead 100 containing the violet light band is packaged with two or more second LED chips 20, each second LED chip 20 can be the same chip or at least two different chips. The second LED chip 20 can be a single-peak chip with one and only one peak in the corresponding spectrum, or a dual quantum well chip or a multi-quantum well chip with at least two peaks in the corresponding spectrum.

[0056] Further, refer to Figure 5A As shown, one arrangement of the lamp beads in the lamp is illustrated. In this illustration, a plurality of lamp beads 100 containing the violet light band are carried on the same side of the lamp panel 200. The plurality of lamp beads 100 containing the violet light band can be the same lamp beads, or at least two of the lamp beads 100 containing the violet light band can be different lamp beads. The two different lamp beads 100 containing the violet light band are those in which the first LED chip 10 and / or the second LED chip 20 are different.

[0057] For example, refer to Figure 5B As shown, in this example, the lamp has at least two lamp beads 100 containing the violet light band that are different from the first LED chip 10. As shown, the two first LED chips 10 in the lamp beads 100 containing the violet light band that encapsulate two first LED chips 10 are different first LED chips 10A and first LED chips 10B, and the first LED chip 10 in the lamp beads 100 containing the violet light band that encapsulates one first LED chip 10 is a first LED chip 10C that is different from the first LED chip 10A and the second LED chip 10B.

[0058] Preferably, the luminaire, in the wavelength band of 420nm or greater and 490nm or less, generates at least two emission peak wavelengths with a peak wavelength difference of 5nm or greater between each other, produced by a single first LED chip 10 or a combination of multiple first LED chips 10, to excite the phosphor layer in combination, ensuring the richness of the emission peaks of the luminaire in the wavelength band of 420nm or greater and 700nm or less. Combined with the supplementation of the corresponding emission spectrum in the wavelength band of 360nm or greater and 420nm or less by the second LED chip 20, and based on the second LED chip 20 being dispersed on the lamp plate 200 along with the lamp beads 100 containing the violet light band, provides the human eye with a natural, realistic and comfortable visual experience.

[0059] 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.

[0060] 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 lighting fixture, characterized in that, include: One light panel; and A plurality of LED beads containing violet light, wherein each violet-light-containing LED bead comprises at least one first LED chip, at least one second LED chip, a substrate carrier, and a phosphor layer, wherein the emission peak wavelength of the first LED chip is in the wavelength range of 420nm to 490nm, and the emission peak wavelength of the second LED chip is in the wavelength range of 360nm to 420nm, wherein the first LED chip and the second LED chip are mounted on the substrate carrier and connected to corresponding lines on the substrate carrier for co-encapsulation within the substrate carrier, wherein the phosphor layer is solidified in the light emission path of the first LED chip and the second LED chip and contains at least one wavelength conversion material, and the excitation spectrum of the wavelength conversion material includes a wavelength band that overlaps with the emission spectrum of the first LED chip, so as to excite the wavelength conversion material based on the light emitted by the first LED chip, wherein each violet-light-containing LED bead is mounted on the lamp plate, such that each second LED chip is dispersed on the lamp plate along with the violet-light-containing LED bead.

2. The lamp according to claim 1, wherein chips with an emission peak difference of ≥5nm are defined as different chips, and the lamp has at least two LED beads containing the violet light band that are different from the first LED chip.

3. The lamp according to claim 2, wherein the first LED chip is a single-peak LED chip with one and only one corresponding emission spectrum.

4. The luminaire according to claim 3, wherein the number of the first LED chips is a plurality, and the plurality of the first LED chips are configured to have a plurality of emission peak wavelengths, and the minimum difference between each emission peak wavelength is greater than or equal to 5.

5. The lamp according to claim 2, wherein the first LED chip is an LED chip having at least two emission peak wavelengths corresponding to the emission spectrum, and the minimum difference between each emission peak wavelength is greater than or equal to 5.

6. The lamp according to claim 5, wherein the number of the first LED chips is multiple, wherein chips with an emission peak difference of ≥5nm are defined as different chips, and the lamp bead containing the violet light band includes at least two different first LED chips.

7. The lamp according to claim 1, wherein the first LED chip and the second LED chip are connected in series.

8. The luminaire according to claim 1, wherein the first LED chip and the second LED chip are connected in parallel.

9. The luminaire according to claim 1, wherein the emission peak wavelength of the wavelength conversion material is in the band range of 420nm to 700nm.

10. A light chip containing violet light, characterized in that, include: At least one first LED chip, wherein the emission peak wavelength of the first LED chip is in the band range of 420nm to 700nm; At least one second LED chip, wherein the emission peak wavelength of the second LED chip is in the band range of 360nm to 420nm; A substrate carrier, wherein the first LED chip and the second LED chip are carried on the substrate carrier and connected to corresponding lines on the substrate carrier; and A phosphor layer, wherein the phosphor layer is solidified in the light emission path of the first LED chip and the second LED chip and contains at least one wavelength conversion material, and the excitation spectrum of the wavelength conversion material contains a band that overlaps with the emission spectrum of the first LED chip, so as to excite the wavelength conversion material based on the light emitted by the first LED chip.

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