Lamp

Abstract

A lamp (1), comprising a light source (11), a light guide barrel (12), a zoom barrel (13) and a condenser lens (14), wherein the light guide barrel (12) has a first light-incident end (12a), and the first light-incident end (12a) covers the light source (11); the zoom barrel (13) is sleeved on the light guide barrel (12), and the zoom barrel (13) has a first light-emergent end (13a) away from the light source (11); the condenser lens (14) is arranged on the zoom barrel (13), and the condenser lens (14) blocks the first light-emergent end (13a); and in the direction of length of the light guide barrel (12), the zoom barrel (13) can move relative to the light guide barrel (12), so as to change the distance between the light source (11) and the condenser lens (14). The structure can simplify the design of the lamp (1) and prevent the lamp (1) from generating a large-angle light-blocking phenomenon during lighting.

Description

A type of lamp Technical Field

[0001] This application relates to the field of lighting technology, and more particularly to a luminaire. Background Technology

[0002] With the continuous advancement of lighting technology, luminaires, as an important component of lighting systems, have become more diverse and innovative in design, and their functions and performance have been significantly improved. Among the many functions of luminaires, focusing is particularly important, as it directly affects the distribution and range of light, thereby influencing the lighting effect and user experience.

[0003] Existing optical zoom structures for lighting fixtures typically achieve zooming by moving a light source located inside the fixture, or by moving a threaded mirror mounted on the fixture. However, the technique of moving the light source inside the fixture to achieve zooming usually requires the corresponding heat dissipation structure to be moved simultaneously. This necessitates a larger and more complex structure to assist in the movement of the heat dissipation structure, complicating the overall structure of the lighting fixture and making maintenance and disassembly difficult. On the other hand, the technique of using a threaded mirror to achieve zooming may cause noticeable light obstruction when the light is emitted at a large angle during illumination. Summary of the Invention

[0004] The purpose of this application is to provide a lighting fixture that solves the technical problems of existing technologies, such as the need for complex lighting fixture structures to achieve zoom functionality and the large-angle light obstruction that occurs when designing waterproof structures due to the use of threaded mirrors for zooming. The lighting fixture of this application achieves zoom functionality, simplifying the fixture design, and also avoids the large-angle light obstruction phenomenon during illumination.

[0005] To address the aforementioned technical problems, embodiments of this application provide a lighting fixture, including a light source, a light guide tube, a zoom tube, and a condenser lens; the light guide tube has a first light-inlet end, which covers the light source; the zoom tube is sleeved on the light guide tube and has a first light-outlet end away from the light source; the condenser lens is disposed on the zoom tube and blocks the first light-outlet end; wherein, along the length direction of the light guide tube, the zoom tube is movable relative to the light guide tube to change the distance between the light source and the condenser lens.

[0006] According to the luminaire of this application, a zoom tube is fitted onto a light guide tube, and the zoom tube is movable relative to the light guide tube. The zoom tube has a first light-emitting end that is farthest from the light source. This allows the focusing degree of the light exiting the light guide tube to be changed by adjusting the distance between the zoom tube and the light source, thereby flexibly adjusting the illumination range and brightness and improving the illumination quality. Furthermore, by moving the zoom tube to change the focal length, the luminaire eliminates the need for a complex structure to move the light source simultaneously during focusing, simplifying the luminaire design and solving the problem of large-angle light obstruction caused by using a threaded mirror for focusing in existing technologies.

[0007] In some embodiments of this application, the light guide tube has a first light guide channel, and the end of the first light guide channel near the light source is constructed as a first light-entry end along the length direction of the light guide tube.

[0008] By setting the first light guide channel on the light guide tube, the light emitted by the light source can be evenly dispersed, avoiding the problems of glare and uneven light. Furthermore, designing the end of the first light guide channel closest to the light source as the first light-inlet end can improve the light collection efficiency, optimize the light quality, and reduce the attenuation of light during transmission.

[0009] In some embodiments of this application, the cross-sectional area of ​​the first light guide channel gradually increases along the length of the light guide tube and away from the light source.

[0010] In this way, the cross-sectional area of ​​the first light guide channel gradually increases along the length of the light guide tube and away from the light source. After the light emitted by the light source passes through the light guide tube, the illumination range of the light target area can be expanded, and the angle between the light and the central axis of the light guide tube can be increased.

[0011] In some embodiments of this application, the inner wall of the first light guide channel is provided with a reflective mirror.

[0012] By incorporating reflective mirrors on the inner wall of the first light guide channel, the reflectivity of light is increased. This ensures reduced energy loss during light transmission, significantly minimizing light attenuation and improving light utilization. The reflective mirrors also ensure that light travels along a predetermined path, preventing scattering or deviation from the path and helping to maintain directionality and focus, allowing for more precise illumination of the target area. Multiple reflections within the first light guide channel increase light brightness, resulting in more uniform and brighter illumination and improved lighting quality.

[0013] In some embodiments of this application, the zoom tube is sleeved on the outer peripheral surface of the light guide tube.

[0014] By fitting the zoom tube around the outer circumference of the light guide tube, all the light from the light guide tube can enter the zoom tube, thereby enhancing the brightness of the light and improving the lighting quality. Fitting the zoom tube around the outer circumference of the light guide tube also allows the user to adjust the length of the zoom tube, and thus adjust the zoom distance to achieve the effect of light zooming.

[0015] In some embodiments of this application, the zoom barrel has a second light guide channel extending along the length direction of the zoom barrel, and the end of the second light guide channel away from the light source is configured as a first light-emitting end.

[0016] By designating the end of the second light guide channel furthest from the light source as the first light-emitting end, the distance of the zoom barrel can be fully utilized to increase the range of focusing distance and achieve better light zooming.

[0017] In some embodiments of this application, the inner wall of the second light guide channel is provided with a reflective mirror.

[0018] By incorporating reflective mirrors on the inner wall of the second light guide channel, the reflectivity of light is increased, ensuring reduced energy loss during light transmission and significantly minimizing light attenuation, thus improving light utilization. The reflective mirrors also ensure that light travels along a predetermined path, preventing scattering or deviation from the intended path, helping to maintain the directionality and focus of the light, allowing it to more accurately illuminate the target area. Multiple reflections of light within the second light guide channel increase brightness, resulting in more uniform and brighter illumination and improved lighting quality.

[0019] In some embodiments of this application, the zoom tube includes a plurality of nested sub-zoom tubes, and any sub-zoom tube is movable relative to the light guide tube along the length direction of the light guide tube.

[0020] This design incorporates multiple nested sub-zoom tubes on the zoom tube, with each sub-zoom tube movable relative to the light guide tube along its length. This allows for precise adjustment of the distance between the light source and the condenser lens, thereby enabling the zoom function of the zoom tube and changing the focal length, which in turn determines the degree of light concentration. When the zoom tube moves, shortening the distance between the condenser lens and the light source, the focal length decreases, the light concentration increases, and the light density at the focal point increases. Conversely, when the condenser lens moves away from the light source, the focal length increases, the light concentration decreases, and the light density at the focal point decreases.

[0021] In some embodiments of this application, the sub-zoom tube has a second sub-light guide channel extending along the length direction of the sub-zoom tube, and the cross-sectional area of ​​the second sub-light guide channel remains unchanged along the length direction of the sub-zoom tube.

[0022] In this way, a second sub-light guide channel is provided on the sub-zoom tube, extending along the length of the sub-zoom tube. The cross-sectional area of ​​the second sub-light guide channel remains unchanged along the length of the sub-zoom tube. This allows the angle of the light to remain unchanged when the zoom tube is moved, which is equivalent to extending the light and realizing the zoom function.

[0023] In some embodiments of this application, any sub-zoom tube is disposed outside the light guide tube. Along the first direction, the length of the sub-zoom tube closer to the light guide tube is greater than the length of the sub-zoom tube farther from the light guide tube. The first direction is perpendicular to and away from the center line of the light guide tube.

[0024] By placing the sub-zoom tube outside the light guide tube, it is possible to adjust the distance between the zoom tube and the light source by moving it, thereby changing the focal length of the zoom tube and improving shooting efficiency. The advantage of setting the length of the sub-zoom tube closer to the light guide tube to be greater than the length of the sub-zoom tube farther away from the light guide tube along the direction perpendicular to and away from the center line of the light guide tube is that it can improve the mobility of moving the zoom tube, which is beneficial for the operator to realize the zoom function. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the structure of the lamp provided in the embodiment of this application when it emits light at a small angle;

[0026] Figure 2 is a schematic diagram of the structure of the lamp provided in the embodiment of this application when it emits mid-angle light;

[0027] Figure 3 is a schematic diagram of the structure of the lamp provided in the embodiment of this application when it emits large-angle light;

[0028] Figure 4 is a structural schematic diagram of a cross-section of a lamp provided in an embodiment of this application;

[0029] Figure 5 is a structural schematic diagram of another lamp cross-section provided in an embodiment of this application.

[0030] The reference numerals and their corresponding component names in the accompanying drawings are as follows: 1. Lamp; 11. Light source; 12. Light guide tube; 13. Zoom tube; 14. Condenser lens; 15. Threaded lens; 16. Housing; 12a. First light inlet; 13a. First light outlet; 12b. First light guide channel; 13b. Second light guide channel; 131. Sub-zoom tube; 131a. Second sub-light guide channel. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] Additionally, for brevity and clarity, the dimensions or thicknesses of various components and layers may be enlarged in the accompanying drawings. Throughout the text, the same numerical values ​​refer to the same elements. As used herein, the terms "and / or" and "and / or" include any and all combinations of one or more of the associated enumerated items. Furthermore, it should be understood that when element A is referred to as "connecting" element B, element A may be directly connected to element B, or there may be an intermediate element C that allows element A and element B to be indirectly connected to each other.

[0033] Furthermore, when describing the implementation of this application, the word "may" refers to "one or more implementations of this application".

[0034] The technical terms used herein are for the purpose of describing particular embodiments and are not intended to limit this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It should be further understood that the term "comprising," as used in this specification, means the presence of the described features, values, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, values, steps, operations, elements, components, and / or combinations thereof.

[0035] Spatial terms, such as "above," are used herein for convenience in describing the relationship between one element or feature illustrated in a figure and another element (or feature) or feature (or feature). It should be understood that, in addition to the orientations depicted in the figure, spatial terms are intended to describe different orientations of a device or apparatus in use or operation. For example, if the device in the figure is flipped, an element described as "above" or "above" other elements or features would be oriented "below" or "under" other elements or features. Therefore, the exemplary term "above" can include both above and below orientations.

[0036] It should be understood that although the terms "first," "second," "third," etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or portion from another element, component, region, layer, or portion. Therefore, the first element, component, region, layer, or portion discussed below may be referred to as the second element, component, region, layer, or portion without departing from the teachings of the exemplary embodiments.

[0037] Existing optical zoom structures for lighting fixtures typically achieve zoom by moving a light source located inside the fixture, or by moving a threaded mirror mounted on the fixture. However, the technique of moving the light source inside the fixture usually requires the corresponding heat dissipation structure to be moved simultaneously. This necessitates a larger and more complex structure to assist in the movement of the heat dissipation structure, complicating the overall structure of the lighting fixture and making maintenance and disassembly difficult. The technique of using a threaded mirror for zooming usually involves threaded structures on the lens or lens barrel to adjust the focal length. On the one hand, these threaded structures may block some light; on the other hand, to ensure the waterproof performance of the lighting fixture, sealing is required at the threaded connections or the interface between the lens and the lens barrel. These sealing measures may result in noticeable light obstruction when the light is emitted at a wide angle during illumination.

[0038] This application provides a lighting fixture that solves the technical problems of existing technologies, such as the need for complex lighting fixture structures to achieve zoom functionality and the resulting large-angle light obstruction when designing waterproof structures due to the use of threaded mirrors for zooming. This lighting fixture not only achieves zoom functionality, simplifying the fixture design, but also avoids large-angle light obstruction during illumination.

[0039] To address the technical problems in the prior art that require complex lamp structures to achieve zoom functionality and that using threaded mirrors for zooming leads to large-angle light obstruction when designing waterproof structures, the overall approach of the technical solution in this application is as follows:

[0040] The first light-inlet end of the light guide tube is placed over the light source, making the light passing through the light guide tube more concentrated and brighter. The zoom tube is placed on the light guide tube, and the condenser lens is sealed at the first light-outlet end of the zoom tube away from the light source, so that all the light passing through the first light-outlet end can be adjusted by the condenser lens. Along the length of the light guide tube, the zoom tube can move relative to the light guide tube, thereby changing the distance between the light source and the condenser lens, thus realizing the zoom function.

[0041] To better understand the above technical solutions, the following will provide a more detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0042] Please refer to Figures 1 to 3 together, wherein Figure 1 is a structural schematic diagram of the lamp 1 provided in the embodiment of this application emitting small-angle light; Figure 2 is a structural schematic diagram of the lamp 1 provided in the embodiment of this application emitting medium-angle light; and Figure 3 is a structural schematic diagram of the lamp 1 provided in the embodiment of this application emitting large-angle light in this embodiment.

[0043] In this embodiment, the lamp 1 includes a light source 11, a light guide tube 12, a zoom tube 13, and a condenser lens 14.

[0044] The light guide tube 12 has a first light-inlet end 12a, which is positioned over the light source 11. When the lamp 1 is working, the light source 11 emits light, which enters the light guide tube 12 through the first light-inlet end 12a. By positioning the first light-inlet end 12a of the light guide tube 12 over the light source 11, the light guide tube 12 has a strong focusing effect, concentrating the light emitted by the light source 11 into a smaller area, making the light passing through the light guide tube 12 more focused and brighter. This focusing effect is particularly important in lighting scenarios where a specific object or area needs to be highlighted. Furthermore, by positioning the first light-inlet end 12a over the light source 11, the direction and range of the light can be controlled according to the shape and angle of the light guide tube 12, allowing the light to illuminate specific areas as needed and avoiding unnecessary interference to other areas.

[0045] A zoom tube 13 is mounted on a light guide tube 12. The zoom tube 13 has a first light-emitting end 13a away from the light source 11. A condenser lens 14 is mounted on the zoom tube 13 and blocks the first light-emitting end 13a of the zoom tube 13. Along the length of the light guide tube 12, the zoom tube 13 is movable relative to the light guide tube 12 to change the distance between the light source 11 and the condenser lens 14. Light emitted from the light source 11 enters the light guide tube 12 through the first light-entry end 12a, and then enters the zoom tube 13 from the light guide tube 12. Because the zoom tube 13 is movable relative to the light guide tube 12, the path that light travels within the zoom tube 13 can be longer or shorter. When the zoom tube 13 moves, shortening the distance between it and the light source 11, the path the light travels within the zoom tube 13 is shortened. This also shortens the distance between the light source 11 and the condenser lens 14, thereby shortening the focal length of the lamp 1 and achieving focusing. Conversely, when the zoom tube 13 moves, lengthening the distance between it and the light source 11, the path the light travels within the zoom tube 13 is lengthened. This also lengthens the distance between the light source 11 and the condenser lens 14, resulting in a longer focal length for the lamp 1 and achieving focusing. Furthermore, by placing the condenser lens 14 on the zoom tube 13 and sealing the first light-emitting end 13a with the condenser lens 14, all light passing through the first light-emitting end 13a can be adjusted by the condenser lens 14. Thus, focusing of the lamp 1 can be achieved through a simple internal structure without moving the light source 11 or the threaded mirror 15, and large-angle light obstruction is avoided when designing a waterproof structure.

[0046] In some embodiments, the light source 11 can be a colored light source 11, which emits non-white light, with its spectral range primarily consisting of a monochromatic spectrum, visually appearing as a "pure color." Light-emitting diodes (LEDs) are a common form of colored light source 11, characterized by their narrow spectrum, good monochromaticity, high luminous efficiency, high energy saving, multiple light colors, high safety, long lifespan, fast response, and low operating costs. Incorporating a colored light source 11 into the luminaire 1 facilitates its application in various fields. For example, in stage lighting, the colored light source 11 can provide rich color variations for stage performances. Colored light sources 11 also have wide applications in landscape lighting, traffic lights, and automotive lighting, among others.

[0047] In some embodiments, the light guide tube 12 can be a light mixing component. Light emitted from the light source 11 enters the light mixing component through the first light input end 12a. The light mixing component controls the input and output of light sources 11 of different colors to achieve switching and color mixing of different colored light sources 11. By setting the light guide tube 12 as a light mixing component, the mixing of multiple colors of light can be realized to create richer lighting effects. For example, in the fields of display and projection, the light mixing component can be used to achieve more realistic and delicate color performance.

[0048] In some embodiments, the condenser lens 14 can be composed of two lenses, which have a stronger light-gathering ability compared to a single lens. An achromatic condenser lens 14 can also be used as the condenser lens 14 in this embodiment. The achromatic condenser lens 14 is composed of a series of lenses, providing a high degree of correction for chromatic aberration and spherical aberration, resulting in an ideal image. It is the condenser lens 14 with the highest imaging quality in bright-field microscopy, and its numerical aperture (NA) can reach 1.4.

[0049] In some embodiments, the condenser lens 14 mounted on the zoom barrel 13 is detachable, for example, by means of a screw connection, using fasteners such as screws and nuts to secure the condenser lens 14 and the zoom barrel 13 together. This detachable design allows users to quickly change or adjust the combination of the condenser lens 14 and the zoom barrel 13 as needed. Under different shooting or lighting requirements, users can select the most suitable combination of the condenser lens 14 and the zoom barrel 13 to achieve the best shooting or lighting effect. If the condenser lens 14 or the zoom barrel 13 malfunctions or is damaged, users can easily disassemble and replace the new component without replacing the entire system. This not only reduces maintenance costs but also improves the maintainability and lifespan of the equipment. The detachable design also makes the condenser lens 14 and the zoom barrel 13 more expandable. Users can add or remove different condenser lenses 14 and zoom barrels 13 as needed to meet different shooting or lighting requirements. For example, when a stronger focusing effect is required, a high-magnification condenser lens 14 can be added. Compared to the design that integrates the condenser lens 14 and zoom tube 13, the detachable design allows users to purchase and replace the condenser lens 14 or zoom tube 13 separately without having to buy the entire system. This not only reduces the initial purchase cost but also makes subsequent upgrades and maintenance more economical.

[0050] In other embodiments, the condenser lens 14 on the zoom barrel 13 can also be integrally connected to the zoom barrel 13. Integrating the condenser lens 14 on the zoom barrel 13 with the zoom barrel 13 reduces the gap between components, making the overall device structure more compact and improving device stability. This integral connection design also reduces the risk of performance degradation or failure due to component loosening or misalignment. Integrating the condenser lens 14 on the zoom barrel 13 with the zoom barrel 13 also optimizes the optical performance between the condenser lens 14 and the zoom barrel 13, reducing light loss or refraction effects at the connection point. This helps maintain beam integrity and improves image clarity and quality. Furthermore, integrating the condenser lens 14 on the zoom barrel 13 with the zoom barrel 13 simplifies device operation, eliminating user concerns about component disassembly and installation, making the device more convenient and faster to use, thereby improving work efficiency. Furthermore, the condenser lens 14 on the zoom barrel 13 is integrated with the zoom barrel 13, and high-quality materials and manufacturing processes are typically used to improve the durability and reliability of the equipment. Moreover, this design enables the equipment to withstand harsher environmental conditions and operating pressures, thus extending the service life of the equipment.

[0051] In some embodiments, the lamp 1 is provided with a housing 16, and a light source 11, a light guide tube 12 and a threaded mirror 15 are fixed on the housing. The light source 11 is fixed at one end of the housing 16, and the threaded mirror 15 is fixed at the other end of the housing 16 away from the light source 11 along the length direction of the housing 16.

[0052] In existing technology, zooming is typically achieved by adjusting the relative spacing of a set of lenses on the lens using a set of threaded joints. However, this process presents several challenges. First, since the threaded lens needs to move via a threaded mechanism, the length of this mechanism must be increased to ensure sufficient movement. A longer threaded mechanism might, however, obstruct some light. Second, if the lighting fixture is designed to be waterproof, sealing at the threaded connections or the interface between the lens and the lens barrel is unavoidable, using methods such as O-rings and silicone rubber. This also increases the risk of light obstruction. Therefore, using the movement of a threaded lens to achieve zooming can result in significant light obstruction at large angles.

[0053] In the embodiments of this application, the condenser lens 14 is movable relative to the housing 16, and the focal length is adjusted by changing the distance between the condenser lens 14 and the light source 11; while the threaded lens 15 is fixedly connected to the housing 16, so there is no need to move the threaded lens 15, and the threaded pair only serves as a fixed connection. Therefore, the length of the threaded pair can be relatively short, and when making a waterproof design, there will be no light blocking phenomenon when the light is emitted at a large angle due to the waterproof structure or the threaded pair.

[0054] In some embodiments, the threaded mirror 15 can be made of materials such as glass, resin, and polycarbonate to ensure good light transmission performance. Different materials for the threaded mirror 15 can be selected for different scenarios. For example, resin and polycarbonate are better choices for scenarios requiring high light transmission and lightweight, while glass is more suitable for scenarios requiring high hardness and chemical stability.

[0055] In other embodiments, the threaded mirror 15 can be connected to the housing in a detachable manner or it can be fixedly connected to the housing. This application does not limit the connection method between the threaded mirror 15 and the housing 16, nor does it limit the type of material of the threaded mirror.

[0056] Please refer to Figures 1 to 3. In this embodiment, the light guide tube 12 has a first light guide channel 12b. Along the length of the light guide tube 12, the end of the first light guide channel 12b closest to the light source 11 is configured as a first light-inlet end 12a. When the lamp 1 is in use, the light emitted by the light source 11 enters the first light guide channel 12b of the light guide tube 12 through the first light-inlet end 12a and continues to illuminate along the length of the light guide tube 12. The first light guide channel 12b on the light guide tube 12 can evenly disperse the light emitted by the light source 11, avoiding glare and uneven light distribution. Configuring the end of the first light guide channel 12b closest to the light source 11 as the first light-inlet end 12a can improve light collection efficiency, optimize light quality, and reduce light attenuation during transmission.

[0057] Please refer to Figures 1 to 3. In this embodiment, the cross-sectional area of ​​the first light guide channel 12b gradually increases along the length of the light guide tube 12 and away from the light source 11. This makes the cross-sectional area of ​​the first light guide channel 12b near the light source 11 (i.e., the first light-entry end 12a) smaller than the cross-sectional area at the point where the light exits the first light guide channel 12b. This increases the angle between the light ray and the axis of the first light guide channel 12b when the light exits, providing a wider illumination range for the lamp 1.

[0058] The gradually increasing cross-sectional area of ​​the first light guide channel 12b enhances the stability and ease of use of the lamp 1. This unique shape also ensures good stability during storage and transportation. Furthermore, the gradual increase in the cross-sectional area of ​​the first light guide channel 12b, along with the similarly increasing outer diameter of the light guide tube 12, facilitates stacking of the lamp 1, saving space—a significant advantage for material management. The gradually increasing cross-sectional area of ​​the first light guide channel 12b also gives the lamp 1 a unique appearance and structure. This unique appearance and structure enhances the aesthetics of the lamp 1 and provides a distinct three-dimensional effect, creating a strong sense of space. It should be noted that this design is also more advantageous for the human hand holding the lamp 1. Users can control the entire lamp 1 by gripping the smaller cross-sectional portion. In some embodiments, the cross-sectional area of ​​the first light guide channel 12b can also be designed to remain constant or gradually decrease along the length of the light guide tube 12 away from the light source 11.

[0059] Please refer to Figures 1 to 3. In this embodiment, a reflective mirror is provided on the inner wall of the first light guide channel 12b. After the light emitted from the light source 11 enters the first light guide channel 12b through the first light inlet 12a, the light can undergo total internal reflection on the inner wall of the first light guide channel 12b of the light guide tube 12. This can improve the reflectivity of the light, ensure that the light reduces energy loss during transmission within the light guide channel, significantly reduce the attenuation of the light during transmission, and improve the light utilization rate. Moreover, the reflective mirror can also ensure that the light is transmitted along a predetermined path, avoiding scattering or deviation from the predetermined path during transmission, helping to maintain the directionality and focus of the light, so that the light can more accurately illuminate the target area. Through multiple reflections of the light within the first light guide channel 12b, the brightness of the light is increased. This enhancement effect can make the illumination more uniform and bright, improving the lighting quality.

[0060] Please refer to Figures 1 to 3. In this embodiment, the zoom tube 13 is fitted onto the outer peripheral surface of the light guide tube 12. Fitting the zoom tube 13 onto the outer peripheral surface of the light guide tube 12 allows the lamp 1 to fully utilize the light emitted by the light source 11 through the zoom tube 13, thus reducing unnecessary power consumption. For locations where the lamp 1 is used for photography for extended periods, this can save a significant amount of energy. Fitting the zoom tube 13 onto the outer peripheral surface of the light guide tube 12 also allows the user to easily adjust the length of the zoom tube 13, thereby adjusting the light focus and achieving precise control of the light, improving the flexibility of lighting. Whether in close-range lighting requiring a strong focused light effect or in long-range lighting requiring a wide-area floodlight effect, the zoom tube 13 can meet the requirements. In some embodiments, the zoom tube 13 can also be fitted onto the inner peripheral surface of the light guide tube 12. In some embodiments, the size of the zoom tube 13 can be 1-2 mm larger than the size of the light guide tube 12 in the direction perpendicular to the length of the light guide tube 12.

[0061] Please refer to Figures 1 to 3. In this embodiment, the zoom barrel 13 has a second light guide channel 13b extending along the length of the zoom barrel 13. The end of the second light guide channel 13b away from the light source 11 is constructed as a first light-emitting end 13a. After passing through the first light guide channel 12b, the light exits the light guide barrel 12 and enters the second light guide channel 13b of the zoom barrel 13. Then, it exits the second light guide channel 13b through the first light-emitting end 13a away from the light source 11. This design can fully utilize the length of the zoom barrel 13 itself to change the distance between the light source 11 and the condenser lens 14, thereby changing the focal length and realizing the focusing function.

[0062] Please refer to Figures 1 to 3. In this embodiment, the inner wall of the second light guide channel 13b is provided with a reflective mirror. After light enters the second light guide channel 13b, it undergoes total internal reflection on the inner wall of the second light guide channel 13b. This increases the reflectivity of the light, reducing energy loss during light transmission within the light guide channel, significantly reducing light attenuation during transmission, and improving light utilization. Furthermore, the reflective mirror ensures that the light is transmitted along a predetermined path, preventing scattering or deviation from the predetermined path during transmission, helping to maintain the directionality and focus of the light, allowing the light to more accurately illuminate the target area. Through multiple reflections of light within the second light guide channel 13b, the brightness of the light is increased. This enhancement effect makes the illumination more uniform and bright, improving the lighting quality.

[0063] Please refer to Figures 1 to 3. In this embodiment, the zoom tube 13 includes a plurality of nested sub-zoom tubes 131. Along the length of the light guide tube 12, any sub-zoom tube 131 is movable relative to the light guide tube 12. Thus, the zoom tube 13 includes a plurality of nested sub-zoom tubes 131. The presence of these sub-zoom tubes 131 helps the sub-zoom tubes 131 to change the distance between the light source 11 and the condenser lens 14 by utilizing the length of their own tube body, increasing the adjustable range of the distance between the light source 11 and the condenser lens 14, thereby changing the focal length and determining the focusing function of the light.

[0064] In some embodiments, among two adjacent sub-zoom tubes 131, along the direction perpendicular to the length of the light guide tube 12, the maximum longitudinal length of the cross-section of the sub-zoom tube 131 that is farther from the axis of the light guide tube 12 (i.e., the outermost sub-zoom tube 131) is 1-2 mm larger than the maximum longitudinal length of the cross-section of the sub-zoom tube 131 that is closer to the axis of the light guide tube 12 (i.e., the innermost sub-zoom tube 131). If the cross-sectional shape of the sub-zoom tube 131 is circular, then the "maximum longitudinal length of the cross-section" refers to the "diameter" of the circle. If the cross-sectional shape of the sub-zoom tube 131 is other than circular, then the "maximum longitudinal length of the cross-section" refers to the maximum distance between two points on that cross-section.

[0065] In some embodiments, among two adjacent sub-zoom tubes 131, in the direction perpendicular to the length of the light guide tube 12, the length of the sub-zoom tube that is farther away from the axis of the light guide tube 12 is 10-20 mm shorter than the length of the sub-zoom tube 131 that is closer to the axis of the light guide tube 12.

[0066] Furthermore, referring to Figure 1, in this embodiment, the second light guide channel 13b of the zoom tube 13 and the first light guide channel 12b of the light guide tube 12 completely overlap, and the second sub-light guide channel 131a of the sub-zoom tube 131 and the second light guide channel 13b of the zoom tube 13 also completely overlap. At this time, the distance between the condenser lens 14 on the lamp 1 and the light source 11 is the smallest, which will form a smallest and brightest light spot. At this time, the angle of the light path of the lamp 1 is also the smallest.

[0067] Furthermore, referring to Figure 2, in this embodiment, the second light guide channel 13b of the zoom tube 13 and the first light guide channel 12b of the light guide tube 12 do not overlap, while the second sub-light guide channel 131a of the sub-zoom tube 131 and the second light guide channel 13b of the zoom tube 13 completely overlap. At this time, the distance between the condenser lens 14 on the lamp 1 and the light source 11 is moderate, which will form a light spot of moderate size and moderate brightness. At this time, the angle of the light path of the lamp 1 is moderate.

[0068] Furthermore, referring to Figure 3, in this embodiment, the second light guide channel 13b of the zoom tube 13 and the first light guide channel 12b of the light guide tube 12 do not overlap or only overlap a small portion (the length of the overlapping area is the smallest). The second sub-light guide channel 131a of the sub-zoom tube 131 and the second light guide channel 13b of the zoom tube 13 also do not overlap or only overlap a small portion (the length of the overlapping area is the smallest). At this time, the distance between the condenser lens 14 and the light source 11 on the lamp 1 is the largest, and the angle of the light path of the lamp 1 is also the largest.

[0069] Please refer to Figures 1 to 3. In this embodiment, the sub-zoom tube 131 has a second sub-light guide channel 131a extending along the length direction of the sub-zoom tube 131. The cross-sectional area of ​​the second sub-light guide channel 131a remains unchanged along the length direction of the sub-zoom tube 131. By providing a second sub-light guide channel 131a extending along the length direction of the sub-zoom tube 131 on the sub-zoom tube 131, and ensuring that the cross-sectional area of ​​the second sub-light guide channel 131a remains unchanged along the length direction of the sub-zoom tube 131, the angle of the light is not changed when the zoom tube 13 is moved, which is equivalent to extending the light beam and realizing the zoom function.

[0070] Please refer to Figures 1 to 3. In this embodiment, any sub-zoom tube 131 is disposed outside the light guide tube 12. Along the first direction, the length of the sub-zoom tube 131 closer to the light guide tube 12 is greater than the length of the sub-zoom tube 131 farther from the light guide tube 12. The first direction is perpendicular to and away from the center line of the light guide tube 12. By fitting the sub-zoom tube 131 outside the light guide tube 12, it is beneficial to adjust the distance between the zoom tube 13 and the light source 11 by moving it, thereby changing the focal length of the zoom tube 13 and improving shooting efficiency. The advantage of setting the length of the sub-zoom tube 131 closer to the light guide tube 12 to be greater than the length of the sub-zoom tube 131 farther from the light guide tube 12 along the direction perpendicular to and away from the center line of the light guide tube 12 is that it can improve the mobility of moving the zoom tube 13, which is beneficial for the operator to realize the zoom function.

[0071] Please refer to Figures 4 and 5 together. Figure 4 is a structural schematic diagram of the cross-section of a lamp 1 provided in an embodiment of this application; Figure 5 is a structural schematic diagram of the cross-section of another lamp 1 provided in an embodiment of this application. That is, in some embodiments of this application, the cross-section of the first light guide channel 12b is polygonal.

[0072] Furthermore, the cross-section of the first light guide channel 12b can be configured as a regular square or a regular hexagon. Configuring the cross-section of the first light guide channel 12b as a regular square or a regular hexagon makes the light transmission path within the first light guide channel 12b more stable and reduces refraction loss, thereby improving the reliability and efficiency of optical signal transmission. In some embodiments, the cross-section of the first light guide channel 12b can be configured as a circle. Configuring the cross-section of the first light guide channel 12b as a circle, due to its shape and structural advantages, exhibits better durability when subjected to external pressure or impact. Moreover, the circular design of the first light guide channel 12b helps to achieve uniform light distribution, reducing shadows or glare problems caused by uneven light distribution.

[0073] In some embodiments of this application, the cross-section of the second light guide channel 13b is polygonal. Further, the cross-section of the second light guide channel 13b can be set to a regular square or a regular hexagon. Setting the cross-section of the second light guide channel 13b to a regular square or a regular hexagon makes the light transmission path within the second light guide channel 13b more stable and reduces refraction loss, thereby improving the reliability and efficiency of optical signal transmission. In some embodiments, the cross-section of the second light guide channel 13b can be set to a circle. Setting the cross-section of the second light guide channel 13b to a circle, due to its shape and structural advantages, can exhibit better durability when subjected to external pressure or impact. Moreover, the circular design of the second light guide channel 13b helps to achieve uniform light distribution, reducing shadows or glare problems caused by uneven light distribution.

[0074] In some embodiments of this application, the cross-section of the housing 16 can be set as a polygon, and the shape of the cross-section of the housing 16 can be adapted to the shape of the cross-section of the light guide tube 12 and the shape of the cross-section of the zoom tube 13.

[0075] For example, the cross-section of the housing 16 can be a regular square or a regular hexagon. Setting the housing 16 to a regular square or a regular hexagon can reduce the assembly process difficulty of the lamp 1, thereby reducing manufacturing costs. Moreover, a regular square can fill space well in a two-dimensional plane, which can minimize the volume of the lamp 1.

[0076] Setting the outer shell 16 as a regular hexagon maximizes the balance of the internal forces of the luminaire 1, thereby reducing structural twisting and deformation. The inherent geometric properties and symmetry of the regular hexagon also ensure that the luminaire 1 has the same strength and stability in different directions. Moreover, each corner of the regular hexagon is supported by two adjacent sides, thus optimizing the pressure balance and ensuring the robustness of the luminaire 1.

[0077] In some embodiments, the cross-section of the outer shell 16 may also be set to a circle. On the one hand, due to the special properties of the circle's shape, a circle has the largest area for the same circumference, which means that with a given amount of material, a circular shell can enclose or cover a larger space, thereby improving the efficiency of material utilization; on the other hand, since the circular cross-section has simple and smooth lines, the outer shell 16 is more aesthetically pleasing and harmonious.

[0078] By setting a light source 11, a light guide tube 12, a zoom tube 13, and a condenser lens 14 on the lamp 1, and covering the first light-entry end 12a of the light guide tube 12 on the light source 11, the light guide tube 12 can have a strong light-focusing effect and can concentrate the light emitted by the light source 11 into a small area, making the light passing through the light guide tube 12 more concentrated and bright. Such a light-focusing effect is particularly important in lighting scenes that need to highlight a certain object or area. Moreover, covering the first light-entry end 12a on the light source 11 can also control the direction and range of the light according to the shape and angle of the light guide tube 12, so that the light can illuminate a specific area as needed and avoid unnecessary interference to other areas.

[0079] The zoom tube 13 is fitted onto the light guide tube 12. The zoom tube 13 has a first light-emitting end 13a that is far away from the light source 11. This allows the focusing degree of the light emitted from the light guide tube 12 to be changed by adjusting the distance between the zoom tube 13 and the light source 11, thereby flexibly adjusting the lighting range and brightness and improving the lighting quality.

[0080] By mounting the condenser lens 14 on the zoom tube 13 and sealing the first light-emitting end 13a with the condenser lens 14, all light rays passing through the first light-emitting end 13a can be adjusted by the condenser lens 14. The zoom tube 13 is movable along the length of the light guide tube 12, thereby changing the distance between the condenser lens 14 and the light source 11, which essentially changes the focal length, thus achieving a focusing effect. Furthermore, by changing the focal length by moving the zoom tube 13, the light fixture 1 can be adjusted without the need for a complex structure to move the light source 11 simultaneously. A first light guide channel 12b is provided on the light guide tube 12. Along the length of the light guide tube 12, the end of the first light guide channel 12b near the light source 11 is constructed as the first light input end 12a. By setting the first light guide channel 12b on the light guide tube 12, the light emitted by the light source 11 can be evenly dispersed, avoiding the problems of glare and uneven light. Furthermore, designing the end of the first light guide channel 12b near the light source 11 as the first light input end 12a can improve the light collection efficiency, optimize the light quality, and reduce the attenuation of light during transmission.

[0081] Along the length of the light guide tube 12 and away from the light source 11, the cross-sectional area of ​​the first light guide channel 12b gradually increases. This increases the cross-sectional area of ​​the first light guide channel 12b along the length of the light guide tube 12 and away from the light source 11, thereby expanding the illumination range of the light target area and increasing the angle between the light and the central axis of the light guide tube 12 after the light emitted from the light source 11 passes through the light guide tube 12.

[0082] A reflective mirror is provided on the inner wall of the first light guide channel 12b. This reflective mirror increases the reflectivity of light, ensuring reduced energy loss during light transmission within the light guide channel, significantly reducing light attenuation during transmission, and improving light utilization. The reflective mirror also ensures that light travels along a predetermined path, preventing scattering or deviation from the predetermined path during transmission, helping to maintain the directionality and focus of the light, allowing it to more accurately illuminate the target area. Through multiple reflections of light within the first light guide channel 12b, the brightness of the light is increased. This enhancement effect makes the illumination more uniform and bright, improving the lighting quality.

[0083] By fitting the zoom tube 13 onto the outer circumference of the light guide tube 12, all the light from the light guide tube 12 can enter the zoom tube 13, thereby enhancing the brightness of the light and improving the lighting quality. Fitting the zoom tube 13 onto the outer circumference of the light guide tube 12 also allows the user to adjust the length of the zoom tube 13, thereby adjusting the zoom distance and achieving the effect of light zoom.

[0084] The zoom barrel 13 has a second light guide channel 13b extending along the length of the zoom barrel 13, and the end of the second light guide channel 13b away from the light source 11 is configured as the first light emitting end 13a. By configuring the end of the second light guide channel 13b away from the light source 11 as the first light emitting end 13a, the distance of the zoom barrel 13 can be fully utilized, the range of focusing distance can be increased, and better light zoom can be achieved.

[0085] The inner wall of the second light guide channel 13b is provided with a reflective mirror. This increases the reflectivity of the light, ensuring reduced energy loss during light transmission within the light guide channel, significantly minimizing light attenuation during transmission, and improving light utilization. The reflective mirror also ensures that the light travels along a predetermined path, preventing scattering or deviation from the intended path during transmission, helping to maintain the directionality and focus of the light, allowing it to more accurately illuminate the target area. Through multiple reflections of light within the second light guide channel 13b, the brightness of the light is increased. This enhancement effect makes the illumination more uniform and bright, improving the lighting quality.

[0086] The zoom tube 13 includes multiple nested sub-zoom tubes 131. Along the length of the light guide tube 12, any one of the sub-zoom tubes 131 is movable relative to the light guide tube 12. This arrangement of multiple nested sub-zoom tubes 131 on the zoom tube 13, with each movable relative to the light guide tube 12, allows for sufficient adjustment of the distance between the light source 11 and the condenser lens 14, thereby enabling the zoom function of the zoom tube 13 and changing the focal length, thus determining the degree of light concentration. When the zoom tube 13 moves, shortening the distance between the condenser lens 14 and the light source 11, the focal length decreases, the degree of light concentration increases, and the light density at the focal point increases. Conversely, when the condenser lens 14 moves away from the light source 11, the focal length increases, the degree of light concentration decreases, and the light density at the focal point decreases.

[0087] The sub-zoom tube 131 has a second sub-light guide channel 131a extending along the length direction of the sub-zoom tube 131, and the cross-sectional area of ​​the second sub-light guide channel 131a remains unchanged along the length direction of the sub-zoom tube 131. By providing a second sub-light guide channel 131a extending along the length direction of the sub-zoom tube 131, and ensuring that the cross-sectional area of ​​the second sub-light guide channel 131a remains unchanged along the length direction of the sub-zoom tube 131, the angle of the light beam does not change when the zoom tube 131 is moved, effectively extending the light beam and achieving the zoom function.

[0088] All sub-zoom tubes 131 are disposed on the outside of the light guide tube 12. Along the first direction, the length of the sub-zoom tube 131 closer to the light guide tube 12 is greater than the length of the sub-zoom tube 131 farther from the light guide tube 12. The first direction is perpendicular to and away from the center line of the light guide tube 12. By fitting the sub-zoom tubes 131 onto the outside of the light guide tube 12, it is beneficial to adjust the distance between the zoom tube 13 and the light source 11 by moving it, thereby changing the focal length of the zoom tube 13 and improving shooting efficiency. The advantage of setting the length of the sub-zoom tube 131 closer to the light guide tube 12 to be greater than the length of the sub-zoom tube 131 farther from the light guide tube 12 along the direction perpendicular to and away from the center line of the light guide tube 12 is that it can improve the mobility of moving the zoom tube 13, which is beneficial for the operator to realize the zoom function.

[0089] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application for those skilled in the art.

Claims

1. A lamp, characterized in that, include: light source; A light guide tube has a first light-inlet end, and the light source is covered by the first light-inlet end; A zoom tube is fitted onto the light guide tube, and the zoom tube has a first light-emitting end that is away from the light source; A condenser lens is disposed on the zoom tube, and the condenser lens is sealed at the first light-emitting end; Along the length of the light guide tube, the zoom tube is movable relative to the light guide tube to change the distance between the light source and the condenser lens.

2. The lamp according to claim 1, characterized in that, The light guide tube has a first light guide channel, and along the length of the light guide tube, the end of the first light guide channel near the light source is constructed as the first light-inlet end.

3. The lamp according to claim 2, characterized in that, Along the length of the light guide tube and away from the light source, the cross-sectional area of ​​the first light guide channel gradually increases.

4. The lamp according to claim 2, characterized in that, The inner wall of the first light guide channel is provided with a reflective mirror.

5. The lamp according to claim 1, characterized in that, The zoom cylinder is sleeved on the outer circumferential surface of the light guide tube.

6. The lamp according to claim 1, characterized in that, The zoom barrel has a second light guide channel extending along the length of the zoom barrel, and the end of the second light guide channel away from the light source is configured as the first light-emitting end.

7. The lamp according to claim 6, characterized in that, The inner wall of the second light guide channel is provided with a reflective mirror.

8. The lamp according to claim 1, characterized in that, The zoom tube includes a plurality of nested sub-zoom tubes, and any one of the sub-zoom tubes is movable relative to the light guide tube along the length direction of the light guide tube.

9. The lamp according to claim 8, characterized in that, The sub-zoom tube has a second sub-light guide channel extending along the length direction of the sub-zoom tube, and the cross-sectional area of ​​the second sub-light guide channel remains unchanged along the length direction of the sub-zoom tube.

10. The lamp according to claim 8, characterized in that, Each of the sub-zoom tubes is disposed on the outside of the light guide tube. Along the first direction, the length of the sub-zoom tube closer to the light guide tube is greater than the length of the sub-zoom tube farther from the light guide tube. The first direction is perpendicular to and away from the center line of the light guide tube.

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