Phototherapy device

Abstract

A phototherapy device, comprising a surface light source module (10) and a point light source module (20). The surface light source module (10) emits a first light beam. The point light source module (20) emits a second light beam. At least part of the propagation path of the first light beam coincides with at least part of the propagation path of the second light beam, and the first light beam and the second light beam converge on the coincident propagation path of the first light beam and the second light beam to form a superposed synthetic light beam.

Description

Phototherapy device

[0001] This application claims priority to the Chinese patent application No. 202420817074.3, filed on April 19, 2024, with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of photobiomodulation, for example to a phototherapy device. BACKGROUND

[0003] In the field of medical devices, there are devices that use light to treat some diseases. Those skilled in the art call it phototherapy, which refers to a method of preventing and treating diseases and promoting body recovery by using sunlight, visible light and invisible light in artificial light sources.

[0004] At present, most of the phototherapy products on the market use light-emitting diodes (LEDs) and other point light sources as light sources, but the light-emitting area of point light sources is limited, and the energy utilization rate and uniformity are not ideal. In actual use, multiple point light sources need to be arranged to achieve a larger irradiation area, and the light intensity is strong in the area directly in front of each point light source, and the light intensity is weak in the area between two adjacent point light sources, which inevitably causes the non-uniformity of the light irradiation of the phototherapy product using the point light source as the light source, even the appearance of dark areas, and further affects the phototherapy effect. On the other hand, phototherapy products use organic light-emitting diodes (OLEDs) and other surface light sources as light sources. Surface light sources can emit light uniformly, but surface light sources are subject to the energy gap law, that is, as the energy gap difference between the excited state and the ground state decreases, the non-radiative transition rate constant increases exponentially, resulting in low light-emitting efficiency of surface light sources in the near-infrared light band. Developing high-efficiency organic near-infrared light-emitting elements has always been a great challenge, which has also seriously limited the development of phototherapy products using surface light sources as light sources. SUMMARY

[0005] Embodiments of the present application provide a phototherapy device that can ensure the uniformity of phototherapy irradiation and compensate for the low light-emitting efficiency of near-infrared light in the near-infrared light band to superimpose a sufficient amount of energy in the effective wavelength range on the target treatment area to achieve a better treatment effect.

[0006] Embodiments of the present application provide a phototherapy device, comprising a surface light source module and a point light source module; the surface light source module emits a first light beam, and the point light source module emits a second light beam;

[0007] At least part of the propagation path of the first light beam coincides with at least part of the propagation path of the second light beam, and on the coinciding propagation path of the first light beam and the second light beam, the first light beam and the second light beam converge to form a superimposed combined light beam.

[0008] In some embodiments, the point light source module is located on the propagation path of the second light beam emitted by the area light source module.

[0009] The area light source module transmits at least part of the second light beam, and on the coinciding propagation path of the transmitted at least part of the second light beam and the first light beam emitted by the area light source module, the first light beam and the second light beam converge to form the superimposed combined light beam.

[0010] In some embodiments, the transmittance of the area light source module is greater than 80%.

[0011] In some embodiments, the point light source module is located on the propagation path of the first light beam emitted by the area light source module.

[0012] The point light source module transmits at least part of the first light beam, and on the coinciding propagation path of the transmitted at least part of the first light beam and the second light beam emitted by the point light source module, the first light beam and the second light beam converge to form the superimposed combined light beam.

[0013] In some embodiments, the transmittance of the point light source module is greater than 80%.

[0014] In some embodiments, the area light source module comprises at least one area light source unit; the at least one area light source unit is arranged according to a first preset path.

[0015] Alternatively,

[0016] The point light source module comprises at least one point light source unit; the at least one point light source unit is arranged according to a second preset path.

[0017] Alternatively,

[0018] The area light source module comprises at least one area light source unit arranged according to a first preset path, and the point light source module comprises at least one point light source unit arranged according to a second preset path.

[0019] Wherein, the number of the area light source units is the same as or different from the number of the point light source units, and the first preset path is the same as or different from the second preset path.

[0020] In some embodiments, the surface light source module comprises at least two surface light source units, the point light source module comprises at least two point light source units, the number of the surface light source units is the same as the number of the point light source units and is arranged correspondingly.

[0021] Part of the surface light source units are located on the propagation path of the second light beam emitted by the point light source units, and part of the point light source units are located on the propagation path of the first light beam emitted by the surface light source units.

[0022] In some embodiments, the point light source module comprises a plurality of point light sources; the plurality of point light sources are arranged according to a third preset path.

[0023] In some embodiments, the point light source module comprises at least one point light source of a light-emitting diode (LED), a micro light-emitting diode (micro-LED), a mini light-emitting diode (mini-LED), and a laser diode (LD).

[0024] The surface light source module comprises at least one surface light source of an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), and a perovskite light-emitting diode (PeLED).

[0025] In some embodiments, the phototherapy device further comprises a skin-friendly module and an appearance module.

[0026] The skin-friendly module is located on the propagation path of the superimposed and combined light beam, and the transmittance of the skin-friendly module is greater than 80%.

[0027] The appearance module is located on the side away from the light-emitting surface of the surface light source module and the point light source module, and the reflectivity of the appearance module is greater than 80%. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings needed in the following embodiment description will be described below. The drawings in the following description are some drawings related to the embodiments of the present application. Those skilled in the art can also obtain other drawings from these drawings without creative labor.

[0029] FIG. 1 is a structural schematic diagram of a phototherapy device according to an embodiment of the present application;

[0030] FIG. 2 is a structural schematic diagram of another phototherapy device according to an embodiment of the present application;

[0031] FIG. 3 is a structural schematic diagram of another phototherapy device according to an embodiment of the present application;

[0032] FIG. 4 is a structural schematic diagram of another phototherapy device according to an embodiment of the present application;

[0033] FIG. 7 is a structural schematic diagram of another light therapy device according to an embodiment of the present application;

[0034] FIG. 6 is a structural schematic diagram of another light therapy device according to an embodiment of the present application;

[0035] FIG. 7 is a structural schematic diagram of another light therapy device according to an embodiment of the present application;

[0036] FIG. 8 is a structural schematic diagram of a point light source module according to an embodiment of the present application;

[0037] FIG. 9 is a structural schematic diagram of another point light source module according to an embodiment of the present application;

[0038] FIG. 10 is a structural schematic diagram of another point light source module according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] The present application will be described in detail below with reference to the accompanying drawings and embodiments. The embodiments described herein are used to explain the present application. For the purpose of description, only the parts related to the present application are shown in the accompanying drawings.

[0040] The terms used in the embodiments of the present application are for the purpose of describing particular embodiments. It should be noted that the terms "upper", "lower", "left", "right", and the like described in the embodiments of the present application are described with reference to the angle shown in the drawings. In addition, it should be understood in the context that when referring to an element formed "on" or "under" another element, it can be formed "on" or "under" another element directly or indirectly through an intermediate element. The terms "first", "second", and the like are only for the purpose of description and do not represent any order, quantity or importance, but are only used to distinguish different components. The above terms in the present application can be understood by those skilled in the art as appropriate.

[0041] The term "including" and its variants used in the present application are open inclusion, i.e. "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment".

[0042] The terms "first", "second", and the like mentioned in the present application are only used to distinguish the corresponding content, and are not used to limit the order or mutual dependency.

[0043] The modification of "one" or "multiple" in the present application is illustrative, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0044] FIG. 1 is a structural schematic diagram of a light therapy device according to an embodiment of the present application. As shown in FIG. 1, the light therapy device includes a surface light source module 10 and a point light source module 20. The surface light source module 10 emits a first light beam, and the point light source module 20 emits a second light beam. At least part of the propagation path of the first light beam coincides with at least part of the propagation path of the second light beam, and the first light beam and the second light beam converge on the coinciding propagation path to form a superimposed combined light beam.

[0045] Exemplarily, the light therapy device includes the surface light source module 10 and the point light source module 20. The surface light source module 10 can emit light uniformly, but is limited by the energy gap law, and has a problem of low light emission efficiency in the near-infrared waveband. The point light source module 20 can emit light in any waveband, but is limited by the arrangement of light sources, and has problems of limited light emission area and non-uniform light. Therefore, the surface light source module 10 and the point light source module 20 are combined to emit light, so that the light emission effects of the surface light source module 10 and the point light source module 20 are mutually compensated. That is, the surface light source module 10 can improve the non-uniformity of the light emitted by the point light source module 20, and the point light source module 20 can compensate for the low light emission efficiency of the surface light source module 10 in the near-infrared waveband. The superimposed light beam has appropriate irradiation wavebands, irradiation intensity and irradiation amount, and irradiation uniformity.

[0046] The surface light source module 10 emits a first light beam, the point light source module 20 emits a second light beam, and at least part of the propagation path of the first light beam emitted by the surface light source module 10 coincides with at least part of the propagation path of the second light beam emitted by the point light source module 20. In this way, on the coinciding propagation path of the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20, the first light beam and the second light beam can converge into one beam, that is, form a superimposed combined light beam. It can be understood that the superimposed combined light beam formed by the convergence of the first light beam and the second light beam together has the characteristics of suitable irradiation wavelength band, irradiation intensity and irradiation amount, and irradiation uniformity, and in addition, there are separate propagation of the first light beam that has not converged and the second light beam that has not converged. In addition, the first light beam emitted by the surface light source module 10 can be adjusted by a mirror / half-mirror / reflector and other optical elements, and the second light beam emitted by the point light source module 20 can also be adjusted by a mirror / half-mirror / reflector and other optical elements to make at least part of the propagation path of the first light beam emitted by the surface light source module 10 coincide with at least part of the propagation path of the second light beam emitted by the point light source module 20. Alternatively, the point light source module 20 can be located on the propagation path of the first light beam emitted by the surface light source module 10, and the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20 converge on the light-emitting side of the point light source module 20, and at least part of the propagation path of the first light beam emitted by the surface light source module 10 coincides with the propagation path of the second light beam emitted by the point light source module 20. Alternatively, the surface light source module 10 can be located on the propagation path of the second light beam emitted by the point light source module 20, and the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20 converge on the light-emitting side of the surface light source module 10, and at least part of the propagation path of the second light beam emitted by the point light source module 20 coincides with the propagation path of the first light beam emitted by the surface light source module 10.

[0047] The superimposed combined light beam is the product of the combination and superposition of the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20, so the superimposed combined light beam simultaneously has the advantages of the first light beam emitted by the surface light source module 10 (for example, uniform light emission) and the second light beam emitted by the point light source module 20 (for example, high light emission efficiency in the near-infrared wavelength band), so that the superimposed combined light beam can be used to stimulate cells or tissues of organisms and change their physiological functions, thereby achieving the phototherapy effect of preventing and treating diseases and promoting the recovery of the organism. In addition, it should be noted that the advantages of the first light beam emitted by the surface light source module 10 are only examples, and the advantages of the second light beam emitted by the point light source module 20 are only examples, and other advantages are within the protection scope of the present embodiment, and the superimposed combined light beam simultaneously has all the advantages of the first light beam and the second light beam.

[0048] The superimposed synthetic light beam can be applied in a phototherapy process on a target treatment area, the phototherapy irradiation of the superimposed synthetic light beam at the target treatment area is uniformly distributed, the light emission efficiency of the superimposed synthetic light beam in the near-infrared light wave band meets the phototherapy irradiation requirement, and the light emission efficiency of the superimposed synthetic light beam in the effective irradiation wave band also meets the phototherapy irradiation requirement. In some embodiments, the emission spectrum of the area light source module 10 and the emission spectrum of the point light source module 20 can be determined according to the treatment site and treatment purpose in the phototherapy process, and the emission spectrum of the area light source module 10 and the emission spectrum of the point light source module 20 can be optimally adjusted according to the change of the treatment site and treatment purpose in the phototherapy process, so that the superimposed spectrum of the emission spectrum of the area light source module 10 and the emission spectrum of the point light source module 20 at the target treatment area meets the requirement of the phototherapy process. In other embodiments, the irradiation intensity of the area light source module 10 and the irradiation intensity of the point light source module 20 can be determined according to the treatment site, treatment purpose and treatment time in the phototherapy process, and the irradiation intensity of the area light source module 10 and the irradiation intensity of the point light source module 20 can be optimally adjusted according to the change of the treatment site, treatment purpose and treatment time in the phototherapy process, so that the superimposed irradiation intensity of the irradiation intensity of the area light source module 10 and the irradiation intensity of the point light source module 20 at the target treatment area meets the requirement of the phototherapy process. Illustratively, the irradiation intensity of different wave band spectrums of the area light source module 10 can be realized by adjusting the light intensity of the corresponding wave band, and the irradiation intensity of different wave band spectrums of the point light source module 20 can also be realized by adjusting the light intensity of the corresponding wave band. And after a certain phototherapy treatment time, the superimposed synthetic light beam of the area light source module 10 and the point light source module 20 after superposition, which meets the requirement of the phototherapy process, has uniform and flexible irradiation in the effective irradiation wave band range and the sufficient irradiation energy range, and irradiates the target treatment area to achieve better treatment effect and rehabilitation effect. It can be understood that the emission spectrum of the area light source module 10 and the emission spectrum of the point light source module 20 can be the same or different, and the irradiation intensity of the area light source module 10 and the irradiation intensity of the point light source module 20 can be the same or different, and finally the superimposed synthetic light beam formed by the light beam superposition of the first light beam emitted by the area light source module 10 and the second light beam emitted by the point light source module 20 has the emission spectrum, irradiation intensity and irradiation amount required by the phototherapy process at the target treatment area. Illustratively, according to the requirement of the phototherapy process, the first light beam emitted by the area light source module 10 can be a red light beam, and the second light beam emitted by the point light source module 20 can be a near-infrared light beam, and the superimposed synthetic light beam obtained by superposition can simultaneously have the phototherapy effect of red light beam and near-infrared light beam, and can perform treatment processes such as fat reduction, skin regeneration, scar removal and wrinkle removal.

[0049] In the embodiments of the present application, the light therapy device includes a surface light source module and a point light source module; the surface light source module emits a first light beam, and the point light source module emits a second light beam; at least part of the propagation path of the first light beam coincides with at least part of the propagation path of the second light beam, and on the coinciding propagation path of the first light beam and the second light beam, the first light beam and the second light beam converge to form a superimposed combined light beam. The light therapy device combines and superimposes the light beams emitted by the surface light source module and the point light source module, the surface light source module can improve the non-uniformity of the light irradiation of the point light source module, and the point light source module can make up for the defect of low light-emitting efficiency of the near-infrared light band of the surface light source module. In this way, the light therapy device can not only ensure the uniformity of the light therapy irradiation at the target treatment area, but also make up for the defect of low light-emitting efficiency of the near-infrared light band of the surface light source module, realize the optimal spectral wavelength distribution at the target treatment area, and ensure that the irradiation light beam in the effective irradiation band range, in the sufficient irradiation energy range, and uniform irradiation is irradiated to the target treatment area, so as to achieve a better treatment effect and rehabilitation effect.

[0050] In some embodiments, optionally, with continued reference to FIGS. 1 and 2, the point light source module 20 includes at least one point light source of an LED, a micro light emitting diode (micro-LED), a mini light emitting diode (mini-LED), and a laser diode (LD). The surface light source module 10 includes at least one surface light source of an OLED, a quantum dot light emitting diode (QLED), and a perovskite light emitting diode (PeLED).

[0051] Optionally, with continued reference to FIG. 1, the surface light source module 10 is located on the propagation path of the second light beam emitted by the point light source module 20; the surface light source module 10 transmits at least part of the second light beam, and on the coinciding propagation path of the transmitted at least part of the second light beam and the first light beam emitted by the surface light source module 10, the first light beam and the second light beam converge to form a superimposed combined light beam. In some embodiments, the light transmittance of the surface light source module 10 is greater than 80%.

[0052] Exemplarily, the surface light source module 10 can be located on the propagation path of the second light beam emitted by the point light source module 20, so that the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20 converge on the light-emitting side of the surface light source module 10, and at least part of the propagation path of the second light beam emitted by the point light source module 20 coincides with the propagation path of the first light beam emitted by the surface light source module 10. That is, the distance between the surface light source module 10 and the target treatment area is less than the distance between the point light source module 20 and the target treatment area. Exemplarily, the distance between the surface light source module 10 and the point light source module 20 can be determined according to the space of the light therapy device and the required irradiation intensity of the light therapy, and the present embodiment only exemplarily shows the structure in which the surface light source module 10 and the point light source module 20 are arranged next to each other. In addition, the surface light source module 10 can transmit at least part of the second light beam, and the first light beam and the second light beam converge into one beam on the coincident propagation path of the transmitted at least part of the second light beam and the first light beam emitted by the surface light source module 10, that is, to form the superimposed combined light beam. Exemplarily, the propagation direction of the second light beam emitted by the point light source module 20 can be perpendicular to the plane in which the target treatment area is located, and the first light beam emitted by the surface light source module 10 can be uniformly distributed in the plane in which the target treatment area is located.

[0053] In the process of combining the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20, in order to reduce the loss of the energy of the second light beam emitted by the point light source module 20 in the propagation process, for example, the loss in the process of transmitting through the surface light source module 10, the light transmittance of the surface light source module 10 can be greater than 80%, that is, the greater the proportion of the second light beam that can be transmitted by the surface light source module 10, the better. Exemplarily, a transparent light-emitting device can be selected for the surface light source module 10, and the substrate, electrode material and packaging material of the light-emitting device can all be transparent materials. Exemplarily, the substrate of the light-emitting device can be a flexible transparent plastic, and the substrate of the light-emitting device can be transparent materials such as transparent glass, polyester (PET), polyimide (PI), polycarbonate (PC) and polyether ether ketone (PEEK).

[0054] Alternatively, FIG. 2 is a structural schematic diagram of another light therapy device provided by the present embodiment, as shown in FIG. 2, the point light source module 20 is located on the propagation path of the first light beam emitted by the surface light source module 10; the point light source module 20 transmits at least part of the first light beam, and the first light beam and the second light beam emitted by the point light source module 20 converge on the coincident propagation path of the transmitted at least part of the first light beam and the second light beam, to form a superimposed combined light beam. In some embodiments, the light transmittance of the point light source module 20 is greater than 80%.

[0055] Exemplarily, the point light source module 20 can be located on the propagation path of the first light beam emitted by the surface light source module 10, so that the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20 converge on the light-emitting side of the point light source module 20, and at least part of the propagation path of the first light beam emitted by the surface light source module 10 coincides with the propagation path of the second light beam emitted by the point light source module 20. That is, the distance between the point light source module 20 and the target treatment area is less than the distance between the surface light source module 10 and the target treatment area. Exemplarily, the distance between the surface light source module 10 and the point light source module 20 can be determined according to the space of the light therapy device and the required irradiation intensity of the light therapy, and the present embodiment only exemplarily shows the structure in which the surface light source module 10 and the point light source module 20 are arranged side by side. In addition, the point light source module 20 can transmit at least part of the first light beam, and the first light beam and the second light beam emitted by the point light source module 20 converge into one beam on the coincident propagation path of the transmitted at least part of the first light beam and the second light beam, that is, the superimposed combined light beam is formed. Exemplarily, the propagation direction of the second light beam emitted by the point light source module 20 can be perpendicular to the plane in which the target treatment area is located, and the first light beam emitted by the surface light source module 10 can be uniformly distributed in the plane in which the target treatment area is located.

[0056] In the process of combining the first light beam emitted by the surface light source module 10 and the second light beam emitted by the point light source module 20, in order to reduce the loss of the energy of the first light beam emitted by the surface light source module 10 in the propagation process, for example, the loss in the process of transmitting through the point light source module 20, the light transmittance of the point light source module 20 can be greater than 80%. That is, the greater the proportion of the first light beam that can be transmitted by the point light source module 20, the better. Exemplarily, a transparent light-emitting device can be selected for the point light source module 20, and the substrate, electrode material and packaging material of the light-emitting device can all be selected to be transparent materials. Exemplarily, the substrate and packaging material of the light-emitting device can be selected to be flexible transparent plastics, and the substrate and packaging material of the light-emitting device can be selected to be transparent materials such as polyester (PET), polyimide (PI), polycarbonate (PC), polyether ether ketone (PEEK) and silica gel.

[0057] Alternatively, FIGS. 3-6 are structural schematic diagrams of four kinds of light therapy devices provided by the present embodiment, as shown in FIGS. 3-6, the surface light source module 10 includes at least one surface light source unit 11, and the at least one surface light source unit 11 is arranged according to a first preset path; or the point light source module 20 includes at least one point light source unit 21, and the at least one point light source unit 21 is arranged according to a second preset path; or the surface light source module 10 includes at least one surface light source unit arranged according to a first preset path, and the point light source module 20 includes at least one point light source unit arranged according to a second preset path; wherein the number of the surface light source units 11 is the same as or different from the number of the point light source units 21, and the first preset path is the same as or different from the second preset path.

[0058] For example, the surface light source module 10 shown in FIG. 3 includes three surface light source units 11 arranged according to a first preset path. The first preset path can be determined according to the treatment site. In this embodiment, only a structure in which the three surface light source units 11 are arranged at intervals in a cross-sectional view is exemplarily given. The point light source module 20 includes one point light source unit 21, and the three surface light source units 11 are all located on the propagation path of the second light beam emitted by the point light source unit 21. The point light source module 20 shown in FIG. 4 includes three point light source units 21 arranged according to a second preset path. The second preset path can be determined according to the treatment site. In this embodiment, only a structure in which the three point light source units 21 are arranged at intervals in a cross-sectional view is exemplarily given. The surface light source module 10 includes one surface light source unit 11, and the surface light source unit 11 is located on the propagation paths of the second light beams emitted by the three point light source units 21. The point light source module 20 shown in FIG. 5 includes three point light source units 21 arranged according to a second preset path. The second preset path can be determined according to the treatment site. In this embodiment, only a structure in which the three point light source units 21 are arranged at intervals in a cross-sectional view is exemplarily given. The surface light source module 10 includes one surface light source unit 11, and the three point light source units 21 are all located on the propagation path of the first light beam emitted by the surface light source unit 11. The surface light source module 10 shown in FIG. 6 includes three surface light source units 11 arranged according to a first preset path. The first preset path can be determined according to the treatment site. In this embodiment, only a structure in which the three surface light source units 11 are arranged at intervals in a cross-sectional view is exemplarily given. The point light source module 20 includes one point light source unit 21, and the point light source unit 21 is located on the propagation paths of the first light beams emitted by the three surface light source units 11.

[0059] The structures of the light therapy devices shown in FIGS. 3-6 are only schematic. The number of the surface light source units 11 in the surface light source module 10 can be other, the number of the point light source units 21 in the point light source module 20 can be other, the position of the surface light source units 11 can be other, and the position of the point light source units 21 can be other.

[0060] In some embodiments, FIG. 7 is a structural schematic diagram of another light therapy device provided by the embodiments of the present application. As shown in FIG. 7, the surface light source module 10 includes at least two surface light source units 11, the point light source module 20 includes at least two point light source units 21, the number of the surface light source units 11 is the same as that of the point light source units 21 and is arranged correspondingly; part of the surface light source units 11 are located on the propagation path of the second light beam emitted by the point light source units 21, and part of the point light source units 21 are located on the propagation path of the first light beam emitted by the surface light source units 11.

[0061] Exemplarily, the surface light source module 10 shown in FIG. 7 includes three surface light source units 11, and the point light source module 20 includes three point light source units 21. One surface light source unit 11 and one point light source unit 21 can be defined as a group of sub light sources. In any group of sub light sources, the surface light source unit 11 can be located on the propagation path of the second light beam emitted by the point light source unit 21, or the point light source unit 21 can be located on the propagation path of the first light beam emitted by the surface light source unit 11. That is, two point light source units 21 shown in FIG. 7 are respectively located on the propagation path of the first light beam emitted by the surface light source unit 11 corresponding to the point light source unit 21, and one surface light source unit 11 shown in FIG. 7 is located on the propagation path of the second light beam emitted by the point light source unit 21 corresponding to the surface light source unit 11. Exemplarily, in the target treatment area, the proportion of the spectrum of the near-infrared wave band in the treatment spectrum of the light therapy required by a part of the area is higher, and then the area is more suitable for arranging the point light source unit 21 on the propagation path of the first light beam emitted by the surface light source unit 11 corresponding to the point light source unit 21, that is, the distance between the point light source unit 21 and the area is less than the distance between the corresponding surface light source unit 11 and the area, that is, the point light source unit 21 is closer to the area, which effectively improves the treatment efficiency. In addition, the proportion of the spectrum of the red light wave band in the treatment spectrum of the light therapy required by another part of the area is higher, and then the area is more suitable for arranging the surface light source unit 11 on the propagation path of the second light beam emitted by the point light source unit 21 corresponding to the surface light source unit 11, that is, the distance between the surface light source unit 11 and the area is less than the distance between the corresponding point light source unit 21 and the area, that is, the surface light source unit 11 is closer to the area, which effectively improves the uniformity of the light beam.

[0062] The structure of the light therapy device shown in FIG. 7 is only illustrative. The number of surface light source units 11 in the surface light source module 10 can be other, the number of point light source units 21 in the point light source module 20 can be other, the position of the surface light source unit 11 can be other, the position of the point light source unit 21 can be other, and the surface light source unit 11 corresponding to the point light source unit 21 can be located on the propagation path of the second light beam emitted by the point light source unit 21, or the point light source unit 21 corresponding to the surface light source unit 11 can be located on the propagation path of the first light beam emitted by the surface light source unit 11.

[0063] Optionally, FIGS. 8-10 are structure schematic diagrams of three point light source modules provided by the embodiments of the present application. As shown in FIGS. 8-10, the point light source module 20 includes a plurality of point light sources 22; and the plurality of point light sources 22 are arranged according to a third preset path.

[0064] Exemplarily, the plurality of point light sources 22 in the point light source module 20 are arranged according to a third preset path. Exemplarily, the point light source module 20 can include one point light source unit 21, and the plurality of point light sources 22 in the point light source unit 21 are arranged according to the third preset path, or the point light source module 20 can include a plurality of point light source units 21, and the number of the point light sources 22 in each point light source unit 21 is the same or different, and the arrangement of the third preset path corresponding to the point light sources 22 in each point light source unit 21 is the same or different. The number of the point light source units 21 in the embodiment can be set according to actual needs, and only the arrangement of the plurality of point light sources 22 in any one point light source unit 21 is illustrated. It can be understood that the arrangement rule of the plurality of point light sources 22 in the point light source module 20 can be determined according to the distance between the point light source module 20 and the target treatment area, the shape of the treatment area, and the shape of the treatment device, and the distance between the adjacent two point light sources 22 can be determined according to the radiation intensity of the point light source 22 to avoid the appearance of a dark area in the target treatment area corresponding to the area between the adjacent two point light sources 22. Exemplarily, the projection of the plurality of point light sources 22 in the point light source module 20 on the first plane is uniformly arranged. Exemplarily, the third preset path shown in FIG. 8 can be an array arrangement, and the shape of the first plane where the arrangement of the corresponding plurality of point light sources 22 is located can be a rectangle. The third preset path shown in FIG. 9 can be the ecological pattern of butterfly wings, and the shape of the first plane where the arrangement of the corresponding plurality of point light sources 22 is located can be an ellipse. The third preset path shown in FIG. 10 can be a circular ring arrangement, and the shape of the first plane where the arrangement of the corresponding plurality of point light sources 22 is located can be a circle. In addition, the third preset path can also be a science and technology circuit pattern, and the shape of the first plane where the arrangement of the corresponding plurality of point light sources 22 is located can change accordingly.

[0065] Optionally, with reference to FIGS. 1 and 2, the light therapy device further includes a skin-friendly module 30 and an appearance module 40; the skin-friendly module 30 is located on the propagation path of the superimposed and combined light beam; the light transmittance of the skin-friendly module 30 is greater than 80%; the appearance module 40 is located on the side away from the light-emitting surface of the area light source module 10; and / or, the appearance module 40 is located on the side away from the light-emitting surface of the point light source module 20.

[0066] Exemplarily, the skin-friendly module 30 is located on the propagation path of the superimposed composite light beam, so that the distance between the skin-friendly module 30 and the target treatment area is less than the distance between the area light source module 10 and the target treatment area; the distance between the skin-friendly module 30 and the target treatment area is less than the distance between the point light source module 20 and the target treatment area. The skin-friendly module 30 is relatively close to the treatment site, or the skin-friendly module 30 can directly contact the treatment site. The skin-friendly module 30 can be made of a material with high light transmittance and soft skin-friendliness to minimize the loss of energy of the superimposed composite light beam obtained by superimposition in the propagation process and improve the user experience. Exemplarily, the light transmittance of the skin-friendly module 30 is greater than 80%. Exemplarily, the skin-friendly module 30 can be made of transparent materials such as transparent plastic and silica gel. In addition, the skin-friendly module 30 can also play a sealing role to avoid the problem that the area light source module 10 and the point light source module 20 inside the light therapy device are polluted by impurities and the like from the outside, thereby affecting the light therapy effect. Exemplarily, the skin-friendly module 30 can include an irradiation window, and the superimposed composite light beam obtained by superimposition can be emitted from the irradiation window to the target treatment area. Exemplarily, the area of the irradiation window can be greater than 200 millimeters (mm) x 200 millimeters (mm), and the irradiation window with this area can enable most skin disease patients to complete large-area treatment after one irradiation, saving time for patients and effectively improving treatment efficiency.

[0067] Exemplarily, referring to FIG. 2, the appearance module 40 is located on the side away from the light-emitting surface of the surface light source module 10, so that the appearance module 40 can play a role of encapsulating the surface light source module 10, avoiding the surface light source module 10 from being polluted by impurities from the outside, thereby affecting the phototherapy effect, and also not affecting the normal light emission of the surface light source module 10. Referring to FIG. 1, the appearance module 40 is located on the side away from the light-emitting surface of the point light source module 20, so that the appearance module 40 can play a role of encapsulating the point light source module 20, avoiding the point light source module 20 from being polluted by impurities from the outside, thereby affecting the phototherapy effect, and also not affecting the normal light emission of the point light source module 20. Exemplarily, the appearance module 40 can be made of an encapsulating material. In addition, the appearance module 40 can also play a role of reflection, so as to change the propagation direction of the first light beam emitted by the surface light source module 10 and the propagation direction of the second light beam emitted by the point light source module 20, and the first light beam and the second light beam incident on the appearance module 40 can be reflected, so that more first light beams and second light beams are incident on the target treatment area, effectively reducing light loss. Exemplarily, the reflectivity of the appearance module 40 is greater than 80%. Exemplarily, the appearance module 40 can be made of a reflective material such as a reflective film, a light-emitting coating, etc. The material selection of the appearance module 40 can also be set according to the actual phototherapy product requirements. Exemplarily, in phototherapy eye patches and phototherapy masks and other phototherapy products, the appearance module 40 can be made of a transparent material such as transparent plastic. The embodiment herein is only an example, and the material of the appearance module 40 can also be other materials.

[0068] In some embodiments, the appearance module 40 is located on the side away from the light-emitting surface of the surface light source module 10 and the point light source module 20, and the reflectivity of the appearance module 40 is greater than 80%.

[0069] The phototherapy device provided by the embodiments of the present application can be applied in the field of photobiomodulation, and can include wearable devices (such as phototherapy patches, phototherapy masks, phototherapy eye patches, phototherapy masks, phototherapy hats, phototherapy socks, etc.) and non-wearable devices (such as phototherapy beds, phototherapy lamps, etc.). Exemplarily, when the phototherapy device is applied to a phototherapy eye patch, the phototherapy eye patch includes an upper encapsulating cover (equivalent to the appearance module of the present application) and a lower encapsulating cover (equivalent to the skin-friendly module of the present application), and the surface light source module and the point light source module are arranged in the area sealed by the upper encapsulating cover and the lower encapsulating cover. Exemplarily, when the phototherapy device is applied to a phototherapy mask, the phototherapy mask includes an outer cover (equivalent to the appearance module of the present application) and a transparent layer (equivalent to the skin-friendly module of the present application), and the surface light source module and the point light source module are arranged in the area sealed by the outer cover and the transparent layer. Exemplarily, when the phototherapy device is applied to a phototherapy hand patch, the phototherapy hand patch includes a shell (equivalent to the appearance module of the present application) and a light-transmitting part (equivalent to the skin-friendly module of the present application), and the surface light source module and the point light source module are arranged in the area sealed by the shell and the light-transmitting part.

Claims

1. An optical therapy device, comprising a surface light source module and a point light source module; the surface light source module emits a first light beam, and the point light source module emits a second light beam; at least part of the propagation path of the first light beam coincides with at least part of the propagation path of the second light beam, and on the coinciding propagation path of the first light beam and the second light beam, the first light beam and the second light beam converge to form a superimposed combined light beam.

2. The phototherapy device of claim 1, wherein, The surface light source module is located on the propagation path of the second light beam emitted by the point light source module; The surface light source module transmits at least part of the second light beam, and on the coinciding propagation path of the transmitted at least part of the second light beam and the first light beam emitted by the surface light source module, the first light beam and the second light beam converge to form the superimposed combined light beam.

3. The phototherapy device of claim 2, wherein, The light transmittance of the surface light source module is greater than 80%.

4. The phototherapy device of claim 1, wherein, The point light source module is located on the propagation path of the first light beam emitted by the surface light source module; The point light source module transmits at least part of the first light beam, and on the coinciding propagation path of the transmitted at least part of the first light beam and the second light beam emitted by the point light source module, the first light beam and the second light beam converge to form the superimposed combined light beam.

5. The phototherapy device of claim 4, wherein, The light transmittance of the point light source module is greater than 80%.

6. The optical therapy device of claim 1, wherein The surface light source module comprises at least one surface light source unit; the at least one surface light source unit is arranged according to a first preset path; Or, The point light source module comprises at least one point light source unit; the at least one point light source unit is arranged according to a second preset path; Or, The surface light source module comprises at least one surface light source unit arranged according to a first preset path, and the point light source module comprises at least one point light source unit arranged according to a second preset path; Wherein, the number of surface light source units and the number of point light source units are the same or different, and the first preset path and the second preset path are the same or different.

7. The phototherapy device of claim 6, wherein, The surface light source module comprises at least two surface light source units, and the point light source module comprises at least two point light source units, the number of surface light source units and the number of point light source units are the same and correspondingly arranged; Part of the surface light source units are located on the propagation path of the second light beam emitted by the point light source units, and part of the point light source units are located on the propagation path of the first light beam emitted by the surface light source units.

8. The phototherapy device of claim 1, wherein, The point light source module comprises a plurality of point light sources; the plurality of point light sources are arranged according to a third preset path.

9. The phototherapy device of claim 1, wherein, The point light source module comprises at least one of a light-emitting diode (LED), a micro light-emitting diode (micro-LED), a mini light-emitting diode (mini-LED), and a laser diode (LD); The surface light source module comprises at least one of an organic light-emitting diode (OLED), a quantum dot light-emitting diode (QLED), and a perovskite light-emitting diode (PeLED).

10. The optical therapy device of claim 1, further comprising a skin-friendly module and an appearance module; The skin-friendly module is located on the propagation path of the superimposed combined light beam, and the light transmittance of the skin-friendly module is greater than 80%. The appearance module is located on the side away from the light-out surface of the surface light source module and the point light source module, and the reflectivity of the appearance module is greater than 80%.

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