Lighting device

Abstract

The utility model relates to the technical field of lighting equipment, in particular to a lighting device which comprises an energy supply unit, the energy supply unit comprises a power interface and an output end, the energy supply unit can receive electric energy from the power interface, and the energy supply unit can convert the electric energy into energy beams and emit the energy beams from the output end. The energy beam comprises at least one of visible light, invisible light and microwave; the illumination unit comprises an input end, and the illumination unit can receive the energy beam from the input end and convert the energy beam into illumination light; one end of the light guide structure is communicated with the output end, and the other end of the light guide structure is communicated with the input end; the energy beam can be propagated from one end of the light guide structure to the other end, and the propagation mode comprises at least one of reflection, refraction and total internal reflection. The technical problems that in the prior art, wires and fixing structures are adopted for supplying energy to the lighting units and fixing the lighting units respectively, installation steps are tedious, and potential safety hazards of wire overheating, short circuit and fire disasters exist can be solved.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and in particular to a lighting device. Background Technology

[0002] Existing lighting devices generally use wires to provide power to lighting units (such as LED lights or fluorescent lights), and then the lighting units convert the power into light to achieve the lighting function; and since the wires themselves cannot serve a fixing function, additional fixing structures (such as slings or base poles) need to be connected to the lighting units for fixation.

[0003] However, to secure the wires, the wiring must be carefully considered in conjunction with the installation location, and several fixing clips must be installed at intervals along the length of the wires. In addition, additional fixing structures are required to secure the lighting units, resulting in a large number of components in existing lighting devices, cumbersome installation steps, and low installation efficiency. On the other hand, if wiring and fixing clips and structures are not considered, the wires are prone to tangling and intertwining, which can easily lead to safety hazards such as overheating, short circuits, and fires, and is also not conducive to later inspection and maintenance. At the same time, messy and opaque wires and fixing structures can also negatively affect the aesthetics of the lighting device. Therefore, there is an urgent need to develop a new type of lighting device. Utility Model Content

[0004] The purpose of this utility model is to overcome the technical problems of existing technologies that use wires and fixing structures to power and fix the lighting unit respectively, which are complicated to install and pose safety hazards such as wire overheating, short circuits and fire. The present invention provides a lighting device.

[0005] In a first aspect, the present invention provides a lighting device, comprising:

[0006] The power supply unit includes a power interface and an output terminal. The power supply unit can receive electrical energy from the power interface and convert the electrical energy into an energy beam and emit it from the output terminal. The energy beam includes at least one of visible light, invisible light, and microwaves.

[0007] The lighting unit includes an input terminal, which is capable of receiving an energy beam from the input terminal and converting the energy beam into illumination light.

[0008] An optical guide structure, one end of which is connected to the output end and the other end of which is connected to the input end; an energy beam can propagate from one end of the optical guide structure to the other end, and the propagation mode includes at least one of reflection, refraction and total internal reflection.

[0009] The working principle of this scheme is as follows: first, the power supply unit receives electrical energy and converts it into an energy beam that is injected into the light guide structure from the output end. Then, the light guide structure guides the energy beam to the input end of the lighting unit, and the lighting unit converts the energy beam into lighting light to achieve the lighting function.

[0010] Compared to existing technologies that use wires to transmit electrical energy to the lighting unit to achieve the lighting function, this solution modifies the power supply method to transmit an energy beam to the lighting unit through a light guide structure. The energy beam includes at least one of visible light, invisible light, and microwaves. On the one hand, it can avoid the safety hazards of wire overheating, short circuits, and fires in existing technologies, making this solution safer. On the other hand, it can save complicated wire wiring design, fixing clip installation steps, and corresponding installation costs, making this solution more efficient.

[0011] On the other hand, as long as the light guide structure can guide the propagation of the energy beam, its material selection is more flexible compared to wires. For example, a rigid transparent plastic rod or a transparent glass rod can be selected, so that it can both supply power to the lighting unit and fix the lighting unit relative to the power supply unit. That is, the light guide structure of this solution can replace the wires and fixing structures in the prior art, thereby reducing the hardware cost of the lighting device and simplifying the installation process, resulting in higher installation efficiency. At the same time, since there are no messy and opaque wires and fixing structures, the aesthetics of this solution are also superior to the prior art. Furthermore, by adjusting parameters such as the refractive index of the light guide structure and the incident angle of the energy beam, this solution can also intentionally produce artistic effects such as light leakage and / or scattering, thereby further improving the aesthetics of this solution.

[0012] Preferably, an energy coupling unit is also provided between the output end and the optical guide structure. The energy coupling unit is used to shape the energy beam emitted from the output end and then merge it into the input end. The shaping includes at least one of beam contraction, collimation and beam expansion.

[0013] Depending on the type of power supply unit, the beam of the energy beam generated by the power supply unit may exhibit problems such as divergence or irregular shape, resulting in the energy beam being unable to be aligned with the optical guide structure or low propagation efficiency within the optical guide structure. Therefore, this solution sets up an energy coupling unit between the input end and the optical guide structure to shape the energy beam, enabling the energy beam to propagate more safely and efficiently within the optical guide structure and improving the energy utilization rate of the energy beam generated by the power supply unit.

[0014] Preferably, the energy coupling unit includes a first lens.

[0015] This solution recommends one specific structural form of the energy coupling unit, which is suitable for situations where the power supply unit outputs light energy, such as visible light and invisible light.

[0016] Preferably, a light-guiding colloid is filled between the first lens and the output end, and the light-guiding colloid includes silicone colloid and / or resin colloid.

[0017] This solution can improve the light output efficiency and optical efficiency at the output end by using light guide colloid; on the other hand, it can also enhance the heat dissipation efficiency at the output end, which is beneficial to improving the service life of the lighting device.

[0018] Preferably, the number of first lenses is at least two, and the first lenses are spaced apart along the propagation direction of the energy beam.

[0019] This solution can adjust the spatial and angular spectrum distribution of the energy beam output by the optical guide structure by adjusting the focal length of the lens, the spacing between the lenses, and the spatial transmittance distribution of the lenses. It is especially suitable for situations where the power supply unit is a laser.

[0020] Preferably, the lighting unit includes a second lens, one side of which faces the input end, and the other side of which is used for direct or indirect lighting; or, the lighting unit includes a photodiode and a lamp, wherein the photodiode is capable of receiving light energy from the input end and converting it into electrical energy, and the lamp is electrically connected to the photodiode; or, the lighting unit includes a nonlinear crystal, one side of which faces the input end, and the other side of which is used for direct or indirect lighting; the nonlinear crystal is capable of converting invisible light into visible light or short-wavelength light.

[0021] This solution recommends three specific lighting unit structures; among them, the structure of the lighting unit including the second lens is the simplest and is suitable for situations where the energy beam of the power supply unit can be used for direct or indirect lighting (e.g., by exciting phosphors with the energy beam), such as when the power supply unit directly outputs visible light.

[0022] The lighting unit, which includes a photodiode and a lamp, can first convert the energy beam of the power supply unit into electrical energy, and then use the electrical energy to excite the lamp to emit light. This allows for the free selection of the light emission type of the lighting unit by changing the lamp, and is suitable for situations where the light emission type of the lighting unit needs to be customized.

[0023] The lighting unit, which includes a nonlinear crystal, can first convert invisible light into visible light or short-wavelength light through the nonlinear crystal, and then provide direct illumination through visible light or indirect illumination through short-wavelength light; it is suitable for situations where the power supply unit outputs invisible light.

[0024] Preferably, the second lens is provided with phosphor.

[0025] This solution can adjust the lighting effect of the lighting unit by using fluorite powder, such as adjusting the spectrum and color of the light emitted by the lighting unit or improving the luminous efficacy of the lighting unit.

[0026] Preferably, the optical guide structure includes optical fibers or transparent columnar components.

[0027] This solution recommends two specific light guide structures. Optical fibers (also known as optical fibers) can achieve light transmission through total internal reflection, making them suitable for situations where the power supply unit outputs light energy (such as visible or invisible light) and requires long-distance, efficient light transmission. In contrast, transparent columnar components have a larger cross-sectional area than optical fibers. This reduces the difficulty of energy beam coupling, making it easier to transmit more energy. Furthermore, transparent columnar components have higher strength, making them more suitable for situations where good limiting and fixing effects are required between the power supply unit and the lighting unit. Additionally, by intentionally causing light leakage and / or scattering in the transparent columnar components, extra lighting or decorative effects can be obtained.

[0028] Preferably, the interior of the transparent columnar member is provided with a reflective surface.

[0029] This solution recommends setting a reflective surface inside the transparent columnar component to guide the propagation direction of the energy beam within the transparent columnar component, thereby achieving different light guiding or decorative effects. It is suitable for situations where the energy beam is visible or invisible light.

[0030] Preferably, the optical guide structure includes straight segments and / or curved segments.

[0031] Depending on the layout requirements, light guiding requirements, or aesthetic requirements of the installation site, the light guide structure can be of various shapes. Therefore, this solution includes straight segments and / or curved segments in the light guide structure, and the light guide structure can be combined into various shapes according to different actual needs, such as straight, curved, or a combination of straight and curved.

[0032] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0033] 1. This utility model provides a lighting device that connects a power supply unit and a lighting unit through a light guide structure. When the power supply unit emits an energy beam, the energy beam is guided into the lighting unit through the light guide structure, and then converted into lighting light by the lighting unit for illumination. Since the energy beam includes at least one of visible light, invisible light, and microwaves, this solution can avoid safety hazards such as overheating of wires, short circuits, and fires compared to the prior art, thus possessing higher safety. The light guide structure has both a power supply function and a fixing function, and can simultaneously replace the wires and fixing structures in the prior art, thereby saving corresponding hardware costs and complicated installation steps, making this solution have higher installation efficiency and lower installation costs. At the same time, the absence of messy and opaque wires and fixing structures also makes the appearance of this solution more aesthetically pleasing. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of a lighting device according to the present invention;

[0035] Figure 2 This is a schematic diagram illustrating the working principle of a lighting device according to this utility model. Figure 1 ;

[0036] Figure 3 This is a schematic diagram illustrating the working principle of a lighting device according to this utility model. Figure 2 ;

[0037] Figure 4 This is a schematic diagram illustrating the working principle of a lighting device according to this utility model. Figure 3 ;

[0038] icon:

[0039] 1-Power supply unit; 11-Power interface; 12-Output terminal;

[0040] 2-Lighting unit; 21-Input terminal;

[0041] 3-Optical guide structure; 31-Reflective surface;

[0042] 4-Energy coupling unit; 41-First lens;

[0043] 5-Energy beam; 6-Illumination light; 7-Electric energy. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0045] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0046] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0047] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0048] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0049] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0050] Example 1

[0051] like Figures 1 to 4As shown, a lighting device includes a power supply unit 1, a lighting unit 2, and a light guide structure 3. The power supply unit 1 includes a power interface 11 and an output terminal 12. The power supply unit 1 can receive electrical energy 7 from the power interface 11 and convert the electrical energy 7 into an energy beam 5, which is emitted from the output terminal 12. The energy beam 5 includes at least one of visible light, invisible light, and microwaves. The lighting unit 2 includes an input terminal 21 and can receive the energy beam 5 from the input terminal 21 and convert the energy beam 5 into illumination light 6. One end of the light guide structure 3 is connected to the output terminal 12, and the other end of the light guide structure 3 is connected to the input terminal 21. The energy beam 5 can propagate from one end of the light guide structure 3 to the other end, and the propagation mode includes at least one of reflection, refraction, and total internal reflection.

[0052] It is important to note that Figures 2 to 4 The spacing between the power supply unit 1, energy coupling unit 4, light guide structure 3 and lighting unit 2 is artificially increased to more clearly show the propagation direction of the energy beam 5, and does not represent the actual spacing between the power supply unit 1, energy coupling unit 4, light guide structure 3 and lighting unit 2.

[0053] In the above embodiments, the power supply unit 1 can select existing products according to actual needs, and the specific forms include but are not limited to LED lights, lasers or microwave devices; the electrical energy 7 received by the power supply unit 1 includes but is not limited to direct current and alternating current.

[0054] In alternative implementations, for example Figure 1 As shown, the optical guide structure 3 includes an optical fiber. The optical fiber can be made using existing technology, and can be either an optical fiber including a core and an outer coating, or an optical fiber without an outer coating, to achieve the effect of hiding the optical guide structure 3.

[0055] In the above embodiments, since the existing lighting unit 2 generally weighs only a few grams, the diameter of the optical fiber can be greater than or equal to 100μm, thereby ensuring that the optical fiber also has sufficient strength to support the lighting unit 2, thus eliminating the need for a fixing structure.

[0056] In alternative implementations, for example Figures 3 to 4 As shown, the power supply unit 1 includes a transparent columnar component; the specific material of the transparent columnar component includes, but is not limited to, quartz glass, borosilicate glass, acrylic resin or polycarbonate, and its cross-sectional shape includes, but is not limited to, circular, elliptical or polygonal.

[0057] In an optional implementation, the light guide structure 3 includes straight segments and / or curved segments. For example, in Figure 3 In the middle, the light guide structure 3 includes a straight, transparent columnar component; in Figure 4 In the middle, the light guide structure 3 includes a curved transparent columnar member with a 90° turn; in Figure 1In this structure, the optical guide structure 3 includes optical fibers, thus the flexibility of the optical fibers can be used to bend the optical guide structure 3 into various desired shapes; it should be noted that... Figure 1 , Figure 3 and Figure 4 These are just three examples. In actual design of the optical guide structure 3, straight segments and curved segments can be combined according to actual needs, and the bending methods of the curved segments include, but are not limited to, angled bending or arc bending.

[0058] In the above embodiments, a reflective surface 31 is provided inside the transparent columnar member, for example... Figure 4 As shown, a reflective surface 31 is provided on the outer side of the corner of the transparent columnar member, so that the energy beam 5 can be emitted and reflected at the reflective surface 31 and its propagation direction can be changed, thereby maintaining propagation along the extension direction of the light guide structure 3. The specific arrangement of the reflective surface 31 includes, but is not limited to: setting a reflector or reflective coating at the position where the propagation direction of the energy beam 5 needs to be changed; or making the transparent columnar member include at least two materials with different reflectivities, and the interface between the materials is located at the position where the propagation direction of the energy beam 5 needs to be changed.

[0059] In an optional embodiment, an energy coupling unit 4 is further provided between the output terminal 12 and the light guide structure 3. The energy coupling unit 4 is used to shape the energy beam 5 emitted from the output terminal 12 and then merge it into the input terminal 21. The shaping includes at least one of beam convergence, collimation, and beam expansion. The energy coupling unit 4 can be a corresponding existing product depending on the power supply unit 1. Specific forms include, but are not limited to, lenses (including convex lenses, concave lenses, or irregular lenses), colloids, or a combination of lenses and colloids.

[0060] It should be noted that the energy coupling unit 4 is used to improve the propagation efficiency and energy utilization of the energy beam 5, but it is not necessary; for example, when the output end 12 of the LED lamp or laser is in direct contact with the light guide structure 3, the energy coupling unit 4 may not be provided.

[0061] In the above embodiments, such as Figure 2 As shown, when the power supply unit 1 can convert electrical energy 7 into light energy, for example, when the power supply unit 1 uses an LED lamp or a laser, the energy coupling unit 4 includes a first lens 41 (including a convex lens, a concave lens, or an irregularly shaped lens). One side of the first lens 41 faces the output end 12, and the other end faces the light guide structure 3. The first lens 41 can adopt existing technology, such as a lens for light distribution of LED lighting fixtures disclosed in publication number CN201852037U.

[0062] In an optional embodiment, a light-guiding colloid is filled between the first lens 41 and the output terminal 12, and the light-guiding colloid includes silicone colloid and / or resin colloid.

[0063] In optional implementations, such as Figure 3 As shown, when the power supply unit 1 includes a laser, the number of first lenses 41 is at least two, and the first lenses 41 are distributed at intervals along the propagation direction of the energy beam 5.

[0064] In optional implementations, such as Figure 3 As shown, the illumination unit 2 includes a second lens (including a convex lens, a concave lens, or an irregularly shaped lens), with one side of the second lens facing the input terminal 21 and the other side used for illumination. This embodiment is applicable to situations where the energy beam 5 of the power supply unit 1 can be directly used as illumination light 6.

[0065] In the above embodiments, such as Figure 1 As shown, the lighting unit 2 includes a teardrop-shaped second lens, that is, the cross-section of the second lens on the plane perpendicular to the propagation direction of the energy beam 5 is circular or elliptical, and its cross-sectional dimensions (the diameter of the circular cross-section, or the major and minor axes of the elliptical cross-section) gradually increase and then gradually decrease along the propagation direction of the energy beam 5.

[0066] In the above embodiments, such as Figure 2 As shown, the lighting unit 2 includes a spherical second lens, that is, the cross-section of the second lens on the plane perpendicular to the propagation direction of the energy beam 5 is circular or elliptical, and its cross-sectional dimensions gradually decrease along the propagation direction of the energy beam 5.

[0067] In the above embodiment, a phosphor is disposed on the second lens. The specific type of phosphor depends on the actual needs. For example, if the second lens receives invisible light from the input terminal 21, ultraviolet phosphor or infrared phosphor can be disposed on the second lens to further convert ultraviolet or infrared light into visible light.

[0068] In an optional embodiment, the lighting unit 2 includes a photodiode and a lamp. The photodiode can receive light energy from the input terminal 21 and convert it into electrical energy 7. The lamp is electrically connected to the photodiode. Both the photodiode and the lamp can be based on existing technologies.

[0069] In an optional embodiment, the illumination unit 2 includes a nonlinear crystal with one side facing the input terminal 21. The nonlinear crystal can convert invisible light into visible light or short-wavelength light, wherein the visible light can be used directly for illumination, while the short-wavelength light can be used to excite phosphors for secondary illumination. The nonlinear crystal can be an existing product. For example, when the energy beam 5 obtained by the nonlinear crystal from the input terminal 21 is infrared, the nonlinear crystal can be a birefringent crystal, which converts the infrared light into short-wavelength light through second harmonic oscillation (SHG) or third harmonic oscillation (THG).

[0070] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An illumination device, characterized by include: The power supply unit (1) includes a power interface (11) and an output terminal (12). The power supply unit (1) can receive electrical energy (7) from the power interface (11) and convert the electrical energy (7) into an energy beam (5) and emit it from the output terminal (12). The energy beam (5) includes at least one of visible light, invisible light and microwave. The lighting unit (2) includes an input terminal (21) and is capable of receiving an energy beam (5) from the input terminal (21) and converting the energy beam (5) into illumination light (6). The light guide structure (3) is connected at one end to the output end (12) and at the other end to the input end (21); the energy beam (5) can propagate from one end of the light guide structure (3) to the other end, and the propagation mode includes at least one of reflection, refraction and total internal reflection.

2. A lighting device according to claim 1, characterized in that An energy coupling unit (4) is also provided between the output end (12) and the light guide structure (3). The energy coupling unit (4) is used to shape the energy beam (5) emitted from the output end (12) and then merge it into the input end (21). The shaping includes at least one of beam contraction, collimation and beam expansion.

3. A lighting device according to claim 2, characterized in that The energy coupling unit (4) includes a first lens (41).

4. A lighting device according to claim 3, characterized in that A light guide colloid is filled between the first lens (41) and the output end (12), the light guide colloid including silicone colloid and / or resin colloid.

5. A lighting device according to claim 3, characterized in that The number of the first lens (41) is at least two, and the first lens (41) is spaced apart along the propagation direction of the energy beam (5).

6. A lighting device according to any one of claims 1 to 5, characterized in that: The lighting unit (2) includes a second lens, one side of which faces the input terminal (21), and the other side of which is used for direct or indirect lighting; Alternatively, the lighting unit (2) includes a photodiode and a lamp, wherein the photodiode is capable of receiving light energy from the input terminal (21) and converting it into electrical energy (7), and the lamp is electrically connected to the photodiode; Alternatively, the lighting unit (2) includes a nonlinear crystal with one side facing the input terminal (21) and the other side of the nonlinear crystal used for direct or indirect lighting; the nonlinear crystal is capable of converting invisible light into visible light or short-wavelength light.

7. A lighting device according to claim 6, characterized in that The second lens is coated with phosphor.

8. A lighting device according to any one of claims 1 to 5, characterized in that The optical guide structure (3) includes optical fibers or transparent columnar components.

9. A lighting device according to claim 8, characterized in that The transparent columnar component has a reflective surface (31) inside.

10. A lighting device according to any one of claims 1 to 5, characterized in that The optical guide structure (3) includes a straight segment and / or a curved segment.

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