Optical conductor and light-emitting module

Abstract

The invention discloses a photoconductor and a light emitting module, the photoconductor comprises a photoconductor body, the photoconductor body comprises a light-in surface and a light-out surface which are located on the two axial sides of the photoconductor body, and a light-transmitting structure located between the light-in surface and the light-out surface, and light incident through the light-in surface is transmitted and mixed through the light-transmitting structure and then is emitted out through the light-out surface; any cross section of the optical conductor body along the axial direction is circular. According to the optical conductor, the optical conductor body with the circular cross section is adopted, light rays are transmitted and mixed in the light transmitting structure after entering from the light incoming surface, and the circular cross section avoids strong reflection and refraction at the corner angle of a prismatic light guide column, so that the light rays can be transmitted in the light guide column more uniformly; under the action of the light transmitting structure, the light is further mixed and adjusted and finally is uniformly emitted from the light emitting surface, so that the problem of non-uniform light distribution of the prismatic light guide column is effectively solved, and the uniformity of light distribution is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting display, and particularly to a light conductor and a light-emitting module. Background Art

[0002] In the application of SMD multi-color light sources (such as RGBYAW combination), due to the differences in the light-emitting angles and physical position offsets of different color chips, problems such as uneven color distribution and brightness fluctuations in different directions are likely to occur during light mixing. To improve the color mixing effect, conventional solutions rely on long-distance light conductors or complex light splitting systems to achieve uniform diffusion of light through multiple total reflections.

[0003] Existing light conductors are usually prismatic light guide columns, which can concentrate light to a specific direction or area through their prism surfaces to achieve a strong light-concentrating effect. However, the multi-faceted structure of the prismatic light guide column makes it easy for light to undergo strong reflection and refraction at the edges and corners during propagation, resulting in uneven light distribution. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a light conductor and a light-emitting module to solve the technical problems in the prior art that the light source and the light conductor mostly adopt a split design, and the split optical path coupling is likely to cause a decrease in light efficiency and insufficient stability due to assembly errors.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: In the first aspect, the present invention provides a light conductor, including: a light conductor body, the light conductor body includes a light incident surface and a light exit surface located on both axial sides thereof, and a light-transmitting structure located between the light incident surface and the light exit surface, and the light incident through the light incident surface is emitted from the light exit surface after being propagated and mixed by the light-transmitting structure; wherein, any cross-section of the light conductor body along its axis is circular.

[0006] Further, the axial length of the light conductor body is 8-10 times the diameter of the light incident surface.

[0007] Further, a film layer is plated on the side of the light exit surface away from the light incident surface.

[0008] Further, a frosted surface is provided on the side of the film layer away from the light exit surface.

[0009] Further, a light diffusing agent is added to the molding material of the light conductor.

[0010] In a second aspect, the present invention provides a light-emitting module, comprising a circuit board, a light-emitting element, a lens, and the light conductor described in the first aspect. One side of the light-emitting element is mounted on the circuit board, and the light conductor is formed on the other side of the light-emitting element by a molding process. Wherein, the light-incident surface of the light conductor faces the light-emitting element, and the lens is disposed on one side of the light-emitting surface of the light conductor and faces the light-emitting surface.

[0011] Further, the lens is configured to receive the light incident from the light-emitting surface and refract the light and emit it in a first direction of the lens itself. The light-emitting module further includes a self-adjusting component disposed between the lens and the circuit board. The self-adjusting component is configured to control the rotation of the lens so that the deviation angle between the first direction of the lens and the gravity direction is less than a preset threshold.

[0012] Further, the self-adjusting component includes: a support frame, a fixing ring, and a first rotating ring. The support frame is connected to the circuit board, the fixing ring is connected to the support frame, the first rotating ring is coaxially and rotatably connected to the fixing ring, the lens is connected to the first rotating ring, and the central space of the fixing ring and the central space of the first rotating ring form a channel for the light to be emitted from the light-emitting surface to the lens. Wherein, the center of gravity of the combination formed by the lens and the first rotating ring is located on one side of the rotation center of the first rotating ring facing its first direction. When the first direction of the lens deviates from the gravity direction, the gravity of the combination formed by the lens and the first rotating ring can pull the first rotating ring to rotate.

[0013] Further, the self-adjusting component further includes a second rotating ring. The second rotating ring is coaxially disposed between the first rotating ring and the fixing ring, and the second rotating ring is rotatable relative to the fixing ring, and the second rotating ring is rotatable relative to the first rotating ring. Wherein, an electromagnet is disposed on the inner peripheral side of the fixing ring relative to the first rotating ring, a ferromagnetic material is disposed on the outer peripheral side of the first rotating ring, the center of gravity of the second rotating ring deviates from its center in the radial direction, a first sensor is disposed on the outer periphery of the first rotating ring, a second sensor is disposed on the outer periphery of the second rotating ring, and the circuit board is provided with a signal control circuit electrically connected to the first sensor, the second sensor, and the electromagnet. When the interval between the first sensor and the second sensor is less than the preset threshold, the signal control circuit supplies power to the electromagnet, and the electromagnet and the ferromagnetic material are magnetically attracted; when the interval between the first sensor and the second sensor is greater than the preset threshold, the signal control circuit stops supplying power to the electromagnet, and the magnetic attraction between the electromagnet and the ferromagnetic material disappears.

[0014] Furthermore, the fixing ring is provided with a first groove corresponding to the first rotating ring and a second groove corresponding to the second rotating ring. The first rotating ring is rotatably connected to the first groove, and the second rotating ring is rotatably connected to the second groove.

[0015] For the optical conductor of the present invention, by adopting an optical conductor body with a circular cross-section, after light enters from the light incident surface, it propagates and mixes in the light-transmitting structure. The circular cross-section avoids strong reflection and refraction at the edges of the prismatic light guide column, so that light can propagate more uniformly inside the light guide column; through the action of the light-transmitting structure, the light is further mixed and adjusted, and finally uniformly emitted from the light exit surface, effectively solving the problem of uneven light distribution of the prismatic light guide column and improving the uniformity of light distribution.

[0016] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following preferred embodiments are specifically described in detail as follows. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the first perspective of the optical conductor according to the embodiment of the present invention; Figure 2 It is a schematic structural diagram of the second perspective of the optical conductor according to the embodiment of the present invention; Figure 3 It is a schematic structural diagram of the overall structure of the light-emitting module according to the embodiment of the present invention; Figure 4 It is a schematic structural diagram of the lens of the light-emitting module according to the embodiment of the present invention; Figure 5 It is a schematic structural diagram of the separated self-adjusting component of the light-emitting module according to the embodiment of the present invention; Figure 6 It is a schematic structural diagram of the assembled self-adjusting component of the light-emitting module according to the embodiment of the present invention; Figure 7 It is a cross-sectional view of the first rotating ring and the second rotating ring of the light-emitting module according to the embodiment of the present invention.

[0018] Explanation of the reference numerals in the drawings: 10. Optical conductor; 11. Optical conductor body; 12. Light incident surface; 13. Light exit surface; 14. Light-transmitting structure; 20. Light-emitting element; 30. Circuit board; 40. Lens; 50. Self-adjusting component; 51. Support frame; 52. Fixing ring; 53. First rotating ring; 531. First sensor; 54. Second rotating ring; 541. Second sensor. Detailed Description of the Embodiment

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "resin", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0023] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the contact between the first and second features not being direct but through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly under and obliquely under the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0025] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] Please refer to Figure 1 and Figure 2 , an embodiment of the present invention provides a light conductor 10, including: a light conductor body 11, the light conductor body 11 includes a light incident surface 12 and a light exit surface 13 located on both axial sides thereof, and a light transmissive structure 14 located between the light incident surface 12 and the light exit surface 13. The light incident through the light incident surface 12 is emitted from the light exit surface 13 after being propagated and mixed through the light transmissive structure 14; wherein, any cross-section of the light conductor body 11 along its axial direction is circular.

[0027] It can be understood that the light conductor 10 of this embodiment utilizes the geometric characteristics of the circular cross-section, so that when the light enters from the light incident surface 12 and propagates in the light transmissive structure 14, it can be reflected and refracted in a relatively regular manner. Since there are no sharp corners, the light will not be strongly reflected and refracted and converge at specific positions as in a prismatic light guide column, thereby avoiding the generation of light spots and shadows. At the same time, the light undergoes multiple reflections and refractions in the light transmissive structure 14, and the light in different directions is intertwined and mixed with each other, making the originally relatively scattered and uneven light become more uniform. Finally, the uniformly mixed light is emitted from the light exit surface 13 to achieve a uniform lighting effect.

[0028] In some embodiments, the cross-sectional area of the light conductor body 11 gradually decreases from the light incident surface 12 to the light exit surface 13. It should be noted that, in order to achieve better light control and color mixing effects, by controlling the change in the cross-sectional area of the light conductor body 11 from the light incident surface 12 to the light exit surface 13 direction, the reflection, refraction, and diffusion behaviors of light within the light conductor body 11 can be affected, thereby optimizing the output characteristics of the light, making it more uniform and concentrated, further improving the color mixing effect of the multi-color light source, and reducing problems such as uneven color distribution and brightness fluctuations. In this embodiment, during the propagation of light from the light incident surface 12 to the light exit surface 13, the light continuously encounters a gradually narrowing curved surface, and is guided towards the center each time it reflects, the angle of the light gradually decreases, the light beam gradually narrows, and finally a more concentrated and narrow light beam is formed when it exits from the light exit surface 13. Different colors of light are also better mixed during this process.

[0029] In some embodiments, the axial length of the light conductor body 11 is 8 - 10 times the diameter of the light incident surface 12.

[0030] It can be understood that after the light enters the light conductor body 11 from the light incident surface 12, it enters the light transmissive structure 14 along the axis; in the light transmissive structure 14, the light starts to propagate along an axial path with a length of 8 - 10 times the diameter of the light incident surface 12. During this process, the light continuously interacts with the reflective and refractive surfaces in the light transmissive structure 14, undergoing multiple reflections and refractions. As the light propagates axially, light rays in different directions gradually intertwine and mix with each other. Due to the reasonable setting of the axial length, the light has sufficient time and path for sufficient mixing, making the light exiting from the light exit surface 13 more uniform. After passing through the propagation and mixing in the light transmissive structure 14, the uniform light finally exits from the light exit surface 13, completing the light guiding process of the light conductor 10. In this embodiment, by setting the axial length of the light conductor body 11 to 8 - 10 times the diameter of the light incident surface 12, the uniformity of the light within the light conductor 10 can be significantly improved. The light is fully mixed along a sufficiently long axial path, reducing non-uniform phenomena such as light spots and shadows, and making the light exiting from the light exit surface 13 more uniform and soft.

[0031] In some embodiments, a film layer is plated on the side of the light-emitting surface 13 away from the light-incident surface 12. It should be noted that the film layer plated in this embodiment can be an optical thin-film material with different characteristics according to actual requirements. For example, an anti-reflection film material can be selected to reduce the reflection loss of light on the light-emitting surface 13, thereby increasing the light transmittance, enabling more light to be emitted from the light-emitting surface 13 and enhancing the light-emitting intensity; a reflective film material can also be chosen to redirect the light that might otherwise escape from the light-emitting surface 13 to the direction where illumination is needed through the reflection of light, further improving the light-emitting efficiency and the utilization rate of light; in addition, a film material with spectral selectivity can be selected to reflect or transmit light of a specific wavelength, thereby adjusting the spectral characteristics of the emitted light to achieve, for example, a color illumination effect or meet the application scenarios with special requirements for light color. In this embodiment, the film layer is an anti-reflection film material, which reduces the reflection loss of light on the light-emitting surface 13, significantly improves the light-emitting efficiency of the light conductor 10, enables more light to be effectively utilized, and enhances the illumination effect.

[0032] In some embodiments, a matte surface is provided on the side of the film layer away from the light-emitting surface 13.

[0033] It should be noted that the matte surface is a specially treated surface with an uneven microscopic structure. When light hits the matte surface, diffuse reflection occurs at these microscopic unevennesses. The diffuse reflection scatters the originally relatively concentrated and intense light in all directions, making the light softer. This scattering effect can effectively reduce the peak intensity of the light, reduce the strong light directly entering the human eye, and alleviate the glare problem.

[0034] In some embodiments, a light diffusing agent is added to the molding material of the light conductor 10.

[0035] It can be understood that the function of the light diffusing agent is to scatter the light, making the light softer and more uniform, and avoiding the light from being too dazzling or having uneven brightness. Specifically, the light diffusing agent is a microsphere product. When added to the molding material of the light conductor 10, when light passes through the light conductor 10, optical phenomena such as refraction, reflection, and scattering occur on the surface of the microspheres of the light diffusing agent, making the output light more uniform, avoiding the phenomenon of local overbrightness or overdarkness, and improving the quality of the illumination effect.

[0036] It should be noted that the length of the light guide column in the prior art is usually relatively long. The reason is that by using a longer optical path propagation path, the light can undergo sufficient reflection and refraction, so that the light is fully mixed and homogenized after multiple reflections and refractions. However, a long light guide column will lead to an increase in attenuation and loss during the light transmission process, resulting in a deteriorated lighting effect. Moreover, a long light guide column will also increase the volume and cost of the module, and the assembly complexity will also increase accordingly. In view of this, in this embodiment, the length of the light conductor 10 along its axial direction is within the range of [1 mm, 20 mm], which sufficiently reduces the length of the light conductor 10. The means to achieve this effect is to add a light diffusing agent to the light conductor 10, so as to enable the light to achieve a better diffusion and uniform mixing effect in a shorter optical path, and to make the colors of the light emitted through the shorter light conductor 10 in this embodiment be mixed evenly. By using the light conductor 10 of this embodiment, the shorter length and smaller cross-sectional diameter of the light conductor 10 result in a smaller volume, making the assembly of the entire light conductor 10 more convenient, improving the production efficiency and the reliability of the product, and contributing to reducing the overall volume of the light conductor 10, reducing the material and production costs, and making the product more competitive in the market.

[0037] In some embodiments, the light diffusing agent includes one or more of silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass. It should be noted that silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass can all effectively scatter and refract light inside the light conductor 10, making the light more evenly distributed, thereby improving the uniformity and softness of the lighting effect. Among them, silicon dioxide belongs to an inorganic light diffusing agent, and its particles can scatter and refract light, making the light distribution more uniform. Polysiloxane particles belong to an organic light diffusing agent. When light passes through them, multiple refractions will occur, realizing the diffusion of light while maintaining a relatively high light transmittance. Aluminum oxide has good optical properties and chemical stability and can be used as a light diffusing agent to improve the haze and light diffusion effect of the material. Borosilicate glass has good heat resistance and chemical stability, and its particles can effectively scatter and refract light to achieve uniform light distribution.

[0038] In a feasible implementation process, the light conductor 10 is based on a resin or other light-transmitting material. During the casting process of the light conductor 10, one or more of silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass are added as light diffusing agents. When light enters the light conductor 10, it will encounter these light diffusing agent particles. The light processed by the light diffusing agent is output from the light conductor 10, forming a softer and more uniform light beam, avoiding the problems of glare and uneven brightness.

[0039] Please refer to Figures 3 to 7, the present invention provides a lighting module, which includes a circuit board 30, a lighting element 20, a lens 40, and a light conductor 10 according to the first aspect. One side of the lighting element 20 is mounted on the circuit board 30, and the light conductor 10 is formed on the other side of the lighting element 20 by a molding process; wherein, the light incident surface 12 of the light conductor 10 faces the lighting element 20, and the lens 40 is arranged on one side of the light exit surface 13 of the light conductor 10 and faces the light exit surface 13. Optionally, the lighting element 20 includes lamp beads, and the lamp beads include one or more types of light-emitting chips of one or more colors. For example, the lamp beads include one or more of red, green, blue, yellow, amber, and white chips. For another example, the lamp beads include red, green, and blue chips. The combination of light-emitting chips included in the lamp beads will not be elaborated here.

[0040] It can be understood that by designing the lighting element 20 and the light conductor 10 into an integrated structure through the molding process, the assembly error problem caused by the split design is effectively avoided, the stability of the optical path coupling is improved, and the risk of light efficiency decline is reduced; moreover, the light incident surface 12 of the light conductor 10 faces the lighting element 20, which can converge the light emitted by the lighting element 20, narrow the light angle, make the light propagate more concentratedly in a directional manner, improve the mixing effect of different color lights, and reduce the problems of uneven color distribution and brightness fluctuation.

[0041] It should be explained that the molding process is a high-precision processing technology. By putting transparent materials such as softened glass, resin, or plastic into a high-precision mold, and through temperature increase, pressure application, and anaerobic environment treatment, an optical part that meets the usage requirements is directly molded. In the integrated structure of the light conductor 10 and the lighting element 20 in this embodiment, the molding process can precisely control the relative position and shape of the light conductor 10 and the lighting element 20, ensure the effective convergence and control of the light emitted by the lighting element 20 by the light conductor 10, improve the bonding strength and stability between the two at the same time, reduce the assembly error, improve the precision and stability of the optical path coupling, and thus enhance the performance and reliability of the light conductor 10. In a feasible implementation process, the circuit board 30 with the lighting element 20 installed is placed in a molding mold. The molding mold is provided with a molding cavity for molding the light conductor 10. The lighting element 20 installed on the circuit board 30 is placed in this molding cavity. By injecting transparent materials such as softened glass, resin, or plastic into this molding cavity to form the main body part of the light conductor 10, and adding one or more of silicon dioxide, polysiloxane particles, aluminum oxide, and borosilicate glass as light diffusing agents, finally, after cooling and molding and demolding, the integrated structure of the light conductor 10 and the lighting element 20 is obtained.

[0042] In some embodiments, the lens 40 is configured to receive the light rays incident from the light-emitting surface 13 and refract the light rays to emit them in its first direction; the light-emitting module further includes a self-adjusting component 50, which is disposed between the lens 40 and the circuit board 30. The self-adjusting component 50 is used to control the rotation of the lens 40 so that the deviation angle between the first direction of the lens 40 and the gravity direction is less than a preset threshold.

[0043] Specifically, the thickness of the lens 40 gradually decreases along its first direction. It can be understood that taking the first direction as the vertically downward direction as an example, the thickness of the lens 40 gradually decreases downward. This structure design with a thicker upper part and a thinner lower part causes the light rays to change their propagation paths inside the lens 40 due to the thickness difference at different positions. Specifically, the light rays first emit from the light-emitting element 20, enter the lens 40 after being converged and preliminarily adjusted by the light conductor 10. The light rays are refracted and their propagation directions are changed according to the thickness changes at different positions of the lens 40. Since the thickness of the lens 40 gradually decreases from top to bottom, the propagation direction of the light rays gradually deflects downward during the process of passing through the lens 40. Finally, the light rays emit from the lens 40, forming a more concentrated and downward-biased light beam, reducing the scattering of light rays in other directions and reducing light waste.

[0044] In some embodiments, the self-adjusting component 50 includes: a support frame 51, a fixing ring 52, and a first rotating ring 53. The support frame 51 is connected to the circuit board 30, the fixing ring 52 is connected to the support frame 51, the first rotating ring 53 is coaxially and rotatably connected to the fixing ring 52, the lens 40 is connected to the first rotating ring 53. The central space of the fixing ring 52 and the central space of the first rotating ring 53 form a channel for the light rays to be incident from the light-emitting surface 13 to the lens 40. Among them, the center of gravity of the combination formed by the lens 40 and the first rotating ring 53 is located on one side of the rotation center of the first rotating ring 53 toward its first direction. When the first direction of the lens 40 deviates from the gravity direction, the gravity of the combination formed by the lens 40 and the first rotating ring 53 can pull the first rotating ring 53 to rotate.

[0045] Specifically, to avoid the influence of possible angular deviation during the assembly stage on the light-emitting direction, the self-adjusting component 50 realizes the automatic adjustment of the light-emitting direction of the lens 40 by utilizing the center-of-gravity offset of the combination of the lens 40 and the first rotating ring 53. When the first direction of the lens 40 deviates from the gravity direction, the change in the center-of-gravity position of the combination will generate a restoring moment, prompting the first rotating ring 53 to rotate, thereby driving the lens 40 to rotate and adjust the direction. In this embodiment, the self-adjusting component 50 can automatically detect the deviation angle between the light-emitting direction of the lens 40 and the gravity direction, and automatically adjust the direction of the lens 40 when it exceeds a preset threshold, ensuring the stability and accuracy of the light-emitting direction. Regardless of how the installation angle of the light-emitting module changes, it can ensure that the lens 40 emits light in the expected direction, meeting the precise requirements of various lighting scenarios for the light-emitting direction.

[0046] In some embodiments, the self-adjusting component 50 further includes a second rotating ring 54. The second rotating ring 54 is coaxially arranged between the first rotating ring 53 and the fixed ring 52, and the second rotating ring 54 is rotatable relative to the fixed ring 52, and the second rotating ring 54 is rotatable relative to the first rotating ring 53; wherein, an electromagnet is provided on the inner peripheral side of the fixed ring 52 relative to the first rotating ring 53, a ferromagnetic material is provided on the outer peripheral side of the first rotating ring 53, the center of gravity of the second rotating ring 54 deviates from its center in the radial direction, a first sensor 531 is provided on the outer periphery of the first rotating ring 53, a second sensor 541 is provided on the outer periphery of the second rotating ring 54, and the circuit board 30 is provided with a signal control circuit electrically connected to the first sensor 531, the second sensor 541, and the electromagnet; when the interval between the first sensor 531 and the second sensor 541 is less than the preset threshold, the signal control circuit supplies power to the electromagnet, and the electromagnet and the ferromagnetic material are magnetically attracted; when the interval between the first sensor 531 and the second sensor 541 is greater than the preset threshold, the signal control circuit stops supplying power to the electromagnet, and the magnetic attraction force between the electromagnet and the ferromagnetic material disappears.

[0047] It can be understood that the self-adjusting component 50 realizes the automatic adjustment of the light-emitting direction of the lens 40 by utilizing the center-of-gravity offset of the combination of the lens 40 and the first rotating ring 53 and the magnetic attraction between the electromagnet and the ferromagnetic material. When the first direction of the lens 40 deviates from the gravity direction, the change in the center-of-gravity position of the combination will generate a restoring moment, prompting the first rotating ring 53 to rotate, thereby driving the lens 40 to rotate and adjust the direction. At the same time, by monitoring the interval between the first sensor 531 and the second sensor 541, when the interval exceeds the preset threshold, the signal control circuit stops supplying power to the electromagnet, causing the magnetic attraction force to disappear, further releasing the constraint on the first rotating ring 53, enabling it to rotate and adjust the direction smoothly until the deviation angle between the first direction of the lens 40 and the gravity direction returns to the preset range, thereby realizing the automatic correction of the light-emitting direction of the lens 40.

[0048] Specifically, when the installation angle of the light-emitting module changes, resulting in the deviation angle between the first direction of the lens 40 and the gravity direction exceeding the preset threshold, the interval between the first sensor 531 and the second sensor 541 also increases accordingly. When the interval exceeds the preset threshold, the signal control circuit detects this change and immediately stops powering the electromagnet, and the magnetic attraction between the electromagnet and the iron material disappears. At this time, since the center of gravity of the combination formed by the lens 40 and the first rotating ring 53 is located on the side of the rotation center facing the first direction, under the action of gravity, the first rotating ring 53 starts to rotate. The rotation of the first rotating ring 53 drives the lens 40 to rotate synchronously, adjusts the first direction of the lens 40, makes it gradually approach the gravity direction, and reduces the deviation angle. As the direction of the lens 40 is adjusted, the interval between the first sensor 531 and the second sensor 541 gradually decreases. When the deviation angle returns to the preset range, the interval also returns within the preset threshold. The signal control circuit powers the electromagnet again, and the electromagnet and the iron material resume magnetic connection. The first rotating ring 53 stops rotating, and the light-emitting direction of the lens 40 is stabilized at a new and compliant position, completing the automatic adjustment process.

[0049] Among them, the first sensor 531 and the second sensor 541 can be Hall sensors, capacitance sensors, or any other sensors capable of detecting relative distances, which are not limited here. The signal control circuit can control whether to power the electromagnet by setting a single-chip microcomputer to receive the induction signals of the first sensor 531 and the second sensor 541, which will not be elaborated here.

[0050] Furthermore, the fixed ring 52 is provided with a first groove corresponding to the first rotating ring 53 and a second groove corresponding to the second rotating ring 54. The first rotating ring 53 is rotatably connected to the first groove, and the second rotating ring 54 is rotatably connected to the second groove.

[0051] The above only uses embodiments to further illustrate the technical content of the present invention to make it easier for readers to understand, but it does not mean that the implementation manners of the present invention are limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A photoconductor, characterized in that, Comprising: A photoconductor body, the photoconductor body includes a light incident surface and a light exit surface located on both axial sides thereof, and a light transmissive structure located between the light incident surface and the light exit surface. The light incident through the light incident surface is emitted from the light exit surface after being propagated and mixed by the light transmissive structure; wherein, any cross-section along the axial direction of the photoconductor body is circular.

2. The photoconductor according to claim 1, wherein, The axial length of the photoconductor body is 8 - 10 times the diameter of the light incident surface.

3. The photoconductor according to claim 1, wherein, A film layer is plated on the side of the light exit surface away from the light incident surface.

4. The photoconductor according to claim 3, characterized in that, A matte surface is provided on the side of the film layer away from the light exit surface.

5. The photoconductor according to claim 1, wherein, A light diffusing agent is added to the molding material of the photoconductor.

6. A light-emitting module, characterized in that, Comprising a circuit board, a light emitting element, a lens, and the photoconductor according to any one of claims 1 - 5. One side of the light emitting element is mounted on the circuit board, and the photoconductor is formed by a molding process on the other side of the light emitting element; wherein, the light incident surface of the photoconductor faces the light emitting element, and the lens is arranged on the side of the light exit surface of the photoconductor and faces the light exit surface.

7. The light-emitting module according to claim 6, wherein The lens is used to receive the light incident from the light exit surface and refract the light to emit in its own first direction; the light emitting module further includes a self - adjusting component, the self - adjusting component is arranged between the lens and the circuit board, and the self - adjusting component is used to control the rotation of the lens so that the deviation angle between the first direction of the lens and the gravity direction is less than a preset threshold.

8. The light-emitting module according to claim 7, characterized in that, The self - adjusting component includes: a support frame, a fixed ring, a first rotating ring. The support frame is connected to the circuit board, the fixed ring is connected to the support frame, the first rotating ring is coaxially and rotatably connected to the fixed ring, the lens is connected to the first rotating ring, and the central space of the fixed ring and the central space of the first rotating ring form a channel for the light to be emitted from the light exit surface to the lens. Wherein, the center of gravity of the combination formed by the lens and the first rotating ring is located on the side of the rotation center of the first rotating ring towards its first direction. When the first direction of the lens deviates from the gravity direction, the gravity of the combination formed by the lens and the first rotating ring can pull the first rotating ring to rotate.

9. The light-emitting module according to claim 8, wherein The self - adjusting component further includes a second rotating ring. The second rotating ring is coaxially arranged between the first rotating ring and the fixed ring, and the second rotating ring can rotate relative to the fixed ring, and the second rotating ring can rotate relative to the first rotating ring. Wherein, an electromagnet is provided on the inner peripheral side of the fixed ring relative to the first rotating ring, a ferromagnetic material is provided on the outer peripheral side of the first rotating ring, the center of gravity of the second rotating ring deviates from its center in the radial direction, a first sensor is provided on the outer periphery of the first rotating ring, a second sensor is provided on the outer periphery of the second rotating ring, and the circuit board is provided with a signal control circuit electrically connected to the first sensor, the second sensor, and the electromagnet. When the distance between the first sensor and the second sensor is less than the preset threshold, the signal control circuit supplies power to the electromagnet, and the electromagnet is magnetically connected to the iron material; when the distance between the first sensor and the second sensor is greater than the preset threshold, the signal control circuit stops supplying power to the electromagnet, and the magnetic attraction between the electromagnet and the iron material disappears.

10. The light-emitting module according to claim 9, characterized in that, The fixed ring is provided with a first groove corresponding to the first rotating ring and a second groove corresponding to the second rotating ring. The first rotating ring is rotatably connected to the first groove, and the second rotating ring is rotatably connected to the second groove.

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