Optical structure of waterproof stage beam lamp and stage lamp thereof

Abstract

The utility model discloses a kind of optical structures of waterproof stage light beam lamp, including lamp head main body, lamp head main body includes lamp head shell, lamp head shell has light inlet and light outlet, and light outlet is equipped with light emitting component;In lamp head shell, from light inlet to light outlet along optical axis sequentially there is focusing lens group and first mirror group;Focusing lens group includes atomizing sheet, focusing lens and drive module, focusing lens is transmission connection with drive module, atomizing sheet is connected with focusing lens by linkage component;Drive module is used to drive focusing lens reciprocatingly moves along optical axis direction, atomizing sheet moves synchronously with focusing lens;First mirror group is configured to keep fixed position relative to lamp head shell, and no relative displacement occurs in the normal working process of optical structure;First mirror group includes the front group lens, lens sealing cylinder and middle group lens sequentially arranged, and the front group lens, middle group lens are respectively sealed with lens sealing cylinder Connection and form a closed space.The practicality is stronger.

Description

Technical Field

[0001] This utility model belongs to the field of stage lighting technology, specifically relating to the optical structure of a waterproof stage beam light and its stage lighting fixture. Background Technology

[0002] In the field of stage lighting equipment, beam lights are key devices for creating a unique stage atmosphere and highlighting performance elements, and their performance directly affects the overall presentation of the stage visual effect. For example, Chinese Patent No. CN205979365U discloses a rotating head-moving beam light, which includes a base, a lamp holder, and a lamp head. The lamp head includes an LED light source connected to a corresponding control circuit to achieve good stage decoration and performance illumination effects.

[0003] However, existing beam lights still have some drawbacks in practical applications:

[0004] Firstly, regarding beam adjustment, traditional beam lights have a fixed beam angle. When the beam enters the atomizing plate at a predetermined angle, the size of the resulting beam is also locked, making it impossible to flexibly enlarge or reduce it according to the diverse needs of stage performances. For example, large-scale song and dance performances may require a large beam to create a lively atmosphere; while solo performances or skits require a small, concentrated beam to highlight the performer. However, current technology cannot achieve dynamic adjustment of the beam size, making it difficult to meet the personalized requirements for beam shape and size in different scenarios.

[0005] Secondly, from the perspective of lighting fixture structural design, the front lens of a typical beam lamp adopts an open structure, meaning that the back of the front lens is directly connected to the internal space of the lamp, lacking effective sealing and protection measures. This design allows oil mist generated by internal components due to friction and heat during long-term operation to diffuse and adhere to the front lens without hindrance. This oil mist adhesion causes a series of problems. On the one hand, it hinders the normal propagation of light, causing significant light attenuation during beam transmission, resulting in a substantial reduction in the brightness of the projected light and affecting the stage lighting effect. On the other hand, the oil mist also makes the light spot blurry and lacks sharp edges, reducing the quality and clarity of the light spot and failing to present a clear and vivid stage image to the audience.

[0006] Furthermore, in stage performance environments, lighting equipment often needs to cope with various complex weather conditions and on-site situations, such as humid air and stage smoke. The open front lens structure of existing beam lights makes the inside of the lamps susceptible to the intrusion of external moisture and impurities, further aggravating oil mist condensation and light decay problems, while also shortening the lifespan of the lamps and increasing the maintenance costs and replacement frequency of the equipment.

[0007] Therefore, existing beam lights have significant shortcomings in terms of beam adjustment and lens protection, failing to meet the high-performance and multi-functional requirements of modern stage performance lighting equipment. Thus, there is an urgent need for a waterproof stage beam light optical structure that can both solve the problem of the beam spot not being able to scale after the beam light fixture enters the fogging plate and effectively prevent oil mist condensation on the front lens. Summary of the Invention

[0008] To address the problems in related technologies, this utility model proposes an optical structure for a waterproof stage beam light and its corresponding stage lighting fixture, thereby overcoming the aforementioned technical issues in existing technologies. This utility model solves the problem of the light spot not being able to scale after the stage lighting fixture enters the atomizing plate by using a linkage component, and solves the problem of oil mist easily condensing on the front lens by setting a lens sealing cylinder.

[0009] The technical solution of this utility model is implemented as follows: an optical structure for a waterproof stage beam light, including a lamp head body for outputting beam light, the lamp head body including a lamp head shell, the lamp head shell being hollow and having a light inlet and a light outlet arranged opposite to each other, and a light-emitting component being provided at the light outlet;

[0010] Inside the lamp head housing, a focusing lens group and a first lens group are arranged sequentially along the optical axis from the light inlet to the light outlet.

[0011] The focusing lens assembly includes a fogging plate, a focusing lens, and a driving module. The focusing lens is connected to the driving module, and the fogging plate is connected to the focusing lens through a linkage component. The driving module is used to drive the focusing lens to reciprocate back and forth along the optical axis, and the fogging plate moves synchronously with the focusing lens.

[0012] Furthermore, the focusing lens includes a focusing lens, which is used to adjust the clarity of the projected light spot when the stage lights illuminate targets at different distances.

[0013] The first lens group is configured to maintain a fixed position relative to the lamp head housing and does not undergo relative displacement during normal operation of the optical structure; the first lens group includes a front lens group, a lens sealing tube and a middle lens group arranged in sequence, the front lens group and the middle lens group are respectively sealed and connected to the lens sealing tube to form a sealed space, and there is a gap between the front lens group and the middle lens group.

[0014] Furthermore, the lens sealing cylinder may be made of plastic or metal.

[0015] Furthermore, the lens sealing cylinder is arranged in an annular shape, and the inner wall of the lens sealing cylinder is provided with a stepped annular step, each of the annular steps is trumpet-shaped, and multiple annular steps are arranged sequentially at equal intervals along the optical axis;

[0016] Furthermore, the diameter of the middle lens group is smaller than the diameter of the front lens group;

[0017] Furthermore, the inner diameter of the opening on the side of the lens sealing cylinder closest to the light outlet is larger than the inner diameter of the opening on the other side.

[0018] Furthermore, the first lens assembly includes a first lens fixing plate, a front lens outer ring, a first sealing ring, and a second sealing ring; the front lens outer ring is connected to the edge of the front lens assembly, the first lens fixing plate, and the lamp head housing, respectively; the first lens fixing plate is sealed to the lamp head housing through the first sealing ring, and the lens sealing cylinder is sealed to the lamp head housing through the second sealing ring;

[0019] The outer ring of the front lens is used to fix and protect the front lens group;

[0020] Furthermore, the first lens fixing plate is ring-shaped, with one edge of the front lens abutting against the outer ring of the front lens and the other edge abutting against the first lens fixing plate;

[0021] The outer ring of the front lens includes an inner ring and an outer ring arranged in an inner and outer manner; one end of the inner ring and the outer ring are connected, and the other end is open to form an annular opening; the annular opening includes a first end on the inner side and a second end on the outer side; the first end abuts against the edge of the front lens group and the first lens fixing plate, respectively, and the second end is connected to the lamp head housing.

[0022] Furthermore, the first lens group also includes a lens housing, a third sealing ring, and a first support plate for mounting the middle lens group. The first support plate is connected to the lamp head housing. The outer side wall of the lens housing extends horizontally outward to form a second lens fixing plate. One side of the second lens fixing plate is sealed to the lens sealing cylinder through the third sealing ring, and the other side of the second lens fixing plate is connected to the first support plate.

[0023] Furthermore, the second lens fixing plate is in the shape of a ring;

[0024] The first support plate is connected to the lamp holder housing by fasteners.

[0025] Furthermore, the drive module includes a second support plate, a third lens fixing plate, and a focusing motor. The focusing motor is mounted on the second support plate, and the second support plate and the third lens fixing plate are arranged sequentially along the light transmission direction.

[0026] The third lens mounting plate is equipped with a transmission component, which is connected to the motor lead screw of the focusing motor. The third lens mounting plate moves back and forth by driving the motor lead screw to rotate, thereby moving the focusing lens.

[0027] Furthermore, the transmission component is a lead screw flange;

[0028] Furthermore, the drive module includes a first focusing motor and a second focusing motor, and the motor lead screw of each focusing motor is connected to the lead screw flange for transmission.

[0029] Furthermore, the focusing lens is connected to the third lens fixing plate via the first support rod.

[0030] Furthermore, the drive module includes a sliding bearing assembly, a focusing slide rod, and a positioning sensor. The sliding bearing assembly is disposed on the third lens fixing plate, and the focusing slide rod is disposed on the second support plate. The focusing slide rod is slidably connected to the sliding bearing assembly. The positioning sensor is disposed on the second support plate and is used to sense whether the third lens fixing plate is located at the initial focusing position.

[0031] Preferably, the positioning sensor is a Hall sensor, which is suitable for initial positioning of lens focusing.

[0032] Furthermore, the third lens mounting plate is provided with a central light hole, which is coaxially arranged with the focusing lens;

[0033] The linkage component includes an atomizing motor, a motor plate, and a rotating plate. The atomizing motor is mounted on the motor plate, and the motor plate is connected to the third lens fixing plate via a second support rod. The rotating shaft of the atomizing motor passes through the motor plate and is connected to one end of the rotating plate, while the other end of the rotating plate is connected to the atomizing sheet. Driving the rotating shaft of the atomizing motor to rotate causes the rotating plate to rotate synchronously, thereby causing the atomizing sheet to cut into or move out of the projection range of the central light aperture.

[0034] It should be noted that, driven by the atomizing motor, the atomizing plate can move from its initial position into the projection range of the central light aperture, or it can reverse and return to its initial position from the central light aperture.

[0035] Furthermore, the shaft of the atomizing motor passes through the motor plate and is connected to one end of the rotating plate via a mounting flange;

[0036] Furthermore, the atomizing plate is bonded to the rotating plate with adhesive, but the connection method between the atomizing plate and the rotating plate is not limited in this invention;

[0037] Furthermore, when the atomizing sheet is cut into the projection range of the central light aperture, the atomizing sheet, the focusing lens, and the central light aperture are arranged sequentially along the light transmission direction.

[0038] Furthermore, the light-emitting component includes a built-in light source, which is one of a gas cannon light source, an LED light source, or a laser light source. This utility model preferentially uses a laser light source.

[0039] Furthermore, the light-emitting component also includes a mounting component and a heat dissipation component. The light-emitting component is connected to the light inlet of the lamp head housing through the mounting component. The heat dissipation component includes an inner and outer ring cover and a heat sink, with the heat sink surrounding the ring cover. The built-in light source is located inside the ring cover, and one end of the ring cover is connected to the mounting component.

[0040] Furthermore, the light-emitting component also includes a base plate, which covers both the bottom of the ring cover and the bottom of the heat sink.

[0041] A stage lighting fixture having the aforementioned optical structure;

[0042] Furthermore, the stage lighting fixture also includes a controller and a power supply. The controller, positioning sensor, focusing motor, and atomizing motor are electrically connected to the power supply. The controller is also electrically connected to the focusing motor and the atomizing motor, and controls the starting and stopping of the focusing motor and the atomizing motor through the controller.

[0043] Furthermore, the power supply is a storage battery, such as a lithium battery or a lead-acid battery; or,

[0044] The power supply includes a power connector, through which an external power source is connected.

[0045] The beneficial effects of this utility model are:

[0046] (1) The lens sealing cylinder and the enclosed space isolate the front and middle lenses from the internal environment of the lamp head housing, preventing moisture and oil mist from entering the enclosed space. Therefore, moisture and oil mist will not condense on the front lens, maintaining its smoothness and ensuring a stable beam output. Furthermore, the lens sealing cylinder design effectively isolates moisture and oil mist, reducing their damage to the front and middle lenses and extending their lifespan.

[0047] (2) The atomizing sheet is linked with the focusing lens through the linkage component. It can adjust the position as needed to enlarge or reduce the size of the projected atomized light spot, which expands the creative space for stage lighting design and meets the diverse lighting needs. It can also adjust the atomization effect accordingly when focusing, enhance the synergy between focusing and atomization to create rich and vivid lighting effects. It also allows the lighting technician to control the movement of the focusing lens to complete the adjustment of focusing and atomized light spot size at the same time, simplifying the operation process, improving work efficiency and reducing errors. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the optical structure of a waterproof stage beam light according to the present invention;

[0049] Figure 2 This is a side view of the optical structure of a waterproof stage beam light according to the present invention;

[0050] Figure 3 for Figure 2 AA section view;

[0051] Figure 4 This is a schematic diagram of the structure of the lamp holder housing of this utility model;

[0052] Figure 5 This is a schematic diagram of the optical structure of this utility model with the lamp head shell omitted.

[0053] Figure 6 This is a cross-sectional view of the front lens outer ring, lamp head housing, first lens group, focusing lens, and atomizing plate of this utility model.

[0054] Figure 7 This is a schematic diagram of the structure of the outer ring of the front lens and the first lens group of this utility model;

[0055] Figure 8 This is a cross-sectional view of the outer ring of the front lens and the first lens group of this utility model;

[0056] Figure 9 This is a schematic diagram of the lens sealing cylinder of this utility model;

[0057] Figure 10 This is a schematic diagram of the structure of the outer ring of the front lens of this utility model;

[0058] Figure 11 This is a schematic diagram of the focusing lens assembly of this utility model;

[0059] Figure 12 This is a side view of the focusing lens assembly of this utility model;

[0060] Figure 13 This is an exploded view of the focusing lens assembly of this utility model.

[0061] Figure 14 This is a schematic diagram of the structure of the light-emitting component of this utility model;

[0062] Figure 15 This is a cross-sectional view of the light-emitting component of this utility model;

[0063] Figure 16 This is an exploded view of the structure of the light-emitting component of this utility model.

[0064] Marker explanation:

[0065] 1. Lamp holder housing; 11. Light inlet; 12. Light outlet;

[0066] 2. First lens group; 21. Front lens group; 211. First lens mounting plate; 212. First sealing ring; 213. Second sealing ring; 214. First support plate; 22. Lens sealing tube; 221. Sealed space; 222. Annular step; 23. Middle lens group; 231. Lens housing; 2311. Second lens mounting plate; 232. Third sealing ring;

[0067] 3. Focusing lens assembly; 31. Focusing lens; 32. Drive module; 33. Second support plate; 34. Third lens fixing plate; 341. Center aperture; 35. Lead screw flange; 36. First focusing motor; 361. Motor lead screw; 37. Second focusing motor; 38. Sliding bearing assembly; 39. Focusing slide bar;

[0068] 4. Positioning sensor; 5. Atomizing plate; 6. Linkage assembly; 61. Atomizing motor; 62. Motor board; 63. Rotating plate; 64. Mounting flange;

[0069] 7. Outer ring of front lens; 71. Inner ring; 72. Outer ring; 73. Annular opening; 731. First end; 732. Second end; 8. First support rod; 9. Second support rod;

[0070] 10. Light-emitting component; 101. Built-in light source; 102. Mounting component; 103. Ring cover; 104. Heat sink; 105. Base plate. Detailed Implementation

[0071] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0072] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0073] like Figure 1-5 As shown, this embodiment provides an optical structure for a waterproof stage beam light, including a lamp head body for outputting beams. The lamp head body includes a lamp head shell 1, which is hollow inside and has a light inlet 11 and a light outlet 12 arranged opposite to each other. A light-emitting component 10 is provided at the light outlet 12.

[0074] Inside the lamp head housing 1, a focusing lens group 3 and a first lens group 2 are arranged sequentially along the optical axis from the light inlet 11 to the light outlet 12.

[0075] The focusing lens group 3 includes an atomizing sheet 5, a focusing lens 31, and a driving module 32. The focusing lens 31 is connected to the driving module 32 via a transmission. The atomizing sheet 5 is connected to the focusing lens 31 via a linkage component 6. The driving module 32 is used to drive the focusing lens 31 to move back and forth along the optical axis, and the atomizing sheet 5 moves synchronously with the focusing lens 31.

[0076] More specifically, the focusing lens 31 includes a focusing lens, which is used to adjust the clarity of the projected light spot when the stage lighting illuminates targets at different distances, in order to meet diverse lighting needs;

[0077] It should be noted that when the atomizing sheet 5 moves with the focusing lens 31, the projected atomized light spot can be magnified or reduced. When the atomizing sheet 5 moves synchronously with the focusing lens 31 towards the front lens group 21, the atomized light spot will be magnified. When the atomizing sheet 5 moves with the focusing lens 31 away from the front lens group 21, the atomized light spot will be reduced.

[0078] The atomizing sheet 5 is synchronously linked with the focusing lens 31 through the linkage component 6. It can adjust its position as needed to enlarge or reduce the size of the projected atomized light spot, thus expanding the creative space for stage lighting design and meeting diverse lighting needs. It can also adjust the atomization effect accordingly when focusing, enhancing the synergy between focusing and atomization to create rich and vivid lighting effects. Furthermore, it allows the lighting technician to control the movement of the focusing lens 31 to simultaneously complete the adjustment of focusing and the size of the atomized light spot, simplifying the operation process, improving work efficiency, and reducing errors.

[0079] The first lens group 2 is configured to maintain a fixed position relative to the lamp head housing 1 and does not undergo relative displacement during the normal operation of the optical structure; the first lens group 2 includes a front lens group 21, a lens sealing cylinder 22 and a middle lens group 23 arranged in sequence, the front lens group 21 and the middle lens group 23 are respectively sealed and connected to the lens sealing cylinder 22 to form a sealed space 221, and there is a gap between the front lens group 21 and the middle lens group 23;

[0080] The lens sealing cylinder 22 and the sealed space 221 isolate the front lens 21 and the middle lens 23 from the internal environment of the lamp head housing 1, preventing moisture and oil mist from entering the sealed space 221. Therefore, moisture and oil mist will not condense on the front lens 21, maintaining its smoothness and ensuring a stable beam output. Furthermore, the lens sealing cylinder 22 effectively isolates moisture and oil mist, reducing their damage to the front lens 21 and the middle lens 23, thereby extending the lens's lifespan.

[0081] Specifically, the lens sealing cylinder 22 is made of either plastic or metal.

[0082] like Figure 6-9 As shown, the lens sealing cylinder 22 is arranged in a ring shape, and the inner wall of the lens sealing cylinder 22 is provided with a stepped annular step 222. Each of the annular steps 222 is trumpet-shaped, and multiple annular steps 222 are arranged at equal intervals along the optical axis.

[0083] Specifically, the diameter of the middle lens group 23 is smaller than the diameter of the front lens group 21;

[0084] More specifically, the inner diameter of the opening on the side of the lens sealing cylinder 22 closest to the light outlet 12 is larger than the inner diameter of the opening on the other side, so as to accommodate the front lens group 21 and the middle lens group 23 with different diameters respectively.

[0085] The lens sealing cylinder 22 has functions such as guiding light, sealing, preventing oil mist and water vapor, effectively ensuring stable lens performance and extending service life.

[0086] Specifically, the first lens group 2 includes a first lens fixing plate 211, a front lens outer ring 7, a first sealing ring 212, and a second sealing ring 213; the front lens outer ring 7 is connected to the edge of the front lens group 21, the first lens fixing plate 211, and the lamp head housing 1 respectively; the first lens fixing plate 211 is sealed to the lamp head housing 1 through the first sealing ring 212, and the lens sealing cylinder 22 is sealed to the lamp head housing 1 through the second sealing ring 213;

[0087] The first and second sealing rings help to enhance the sealing of the connection and further prevent oil mist and water vapor from entering.

[0088] The outer ring 7 of the front lens is used to fix and protect the front lens group 21;

[0089] More specifically, the first lens fixing plate 211 is in the shape of a ring, and the edge of one side of the front lens 21 abuts against the outer ring 7 of the front lens, and the edge of the other side abuts against the first lens fixing plate 211, so as to better fix the front lens 21.

[0090] like Figure 10 As shown, the outer ring 7 of the front lens includes an inner ring 71 and an outer ring 72 arranged in an inner and outer manner; one end of the inner ring 71 and the outer ring 72 are connected, and the other end is open to form an annular opening 73; the annular opening 73 includes a first end 731 on the inner side and a second end 732 on the outer side; the first end 731 abuts against the edge of the front lens group 21 and the first lens fixing plate 211 respectively, and the second end 732 is connected to the lamp head housing 1 to enhance the stability of the connection between the outer ring 7 of the front lens and the lamp head housing 1 and the front lens group 21.

[0091] Specifically, the first lens group 2 further includes a lens housing 231, a third sealing ring 232, and a first support plate 214 for mounting the middle lens group 23. The first support plate 214 is connected to the lamp head housing 1. The outer side wall of the lens housing 231 extends horizontally outward to form a second lens fixing plate 2311. One side of the second lens fixing plate 2311 is sealed to the lens sealing cylinder 22 through the third sealing ring 232, and the other side of the second lens fixing plate 2311 is connected to the first support plate 214.

[0092] The third sealing ring 232 helps to enhance the sealing performance of the connection between the middle lens 23 and the lens sealing cylinder 22;

[0093] More specifically, the second lens fixing plate 2311 is in the shape of a ring;

[0094] The first support plate 214 is connected to the lamp holder housing 1 by fasteners, making the connection more secure.

[0095] like Figure 11-13 As shown, the drive module 32 includes a second support plate 33, a third lens fixing plate 34, and a focusing motor. The focusing motor is mounted on the second support plate 33, and the second support plate 33 and the third lens fixing plate 34 are arranged sequentially along the light transmission direction.

[0096] The third lens fixing plate 34 is provided with a transmission component, which is connected to the motor lead screw 361 of the focusing motor. The third lens fixing plate 34 moves back and forth by driving the motor lead screw 361 to rotate, thereby driving the focusing lens 31 to move.

[0097] More specifically, the transmission component is a lead screw flange 35;

[0098] More specifically, the drive module 32 includes a first focusing motor 36 and a second focusing motor 37, and the motor lead screw 361 of each focusing motor is connected to the lead screw flange 35 for transmission.

[0099] Specifically, the focusing lens 31 is connected to the third lens fixing plate 34 via the first support rod 8;

[0100] It should be noted that: In this embodiment, the rotation of the motor lead screw 361 drives the third lens fixing plate 34 to move back and forth, thereby driving the focusing lens 31 and the atomizing sheet 5 to move, achieving efficient focusing; the use of dual focusing motors and lead screw flange 35 for transmission connection enhances driving stability and focusing accuracy; the focusing lens 31 is connected to the third lens fixing plate 34 via the first support rod 8, which makes the structure stable, ensuring the smooth and accurate focusing process of the stage beam light and improving the quality of the lighting effect.

[0101] Specifically, the drive module 32 includes a sliding bearing assembly 38, a focusing slide rod 39, and a positioning sensor 4. The sliding bearing assembly 38 is disposed on the third lens fixing plate 34, and the focusing slide rod 39 is disposed on the second support plate 33. The focusing slide rod 39 is slidably connected to the sliding bearing assembly 38. The positioning sensor 4 is disposed on the second support plate 33 and is used to sense whether the third lens fixing plate 34 is located in the initial focusing position.

[0102] Preferably, the positioning sensor 4 is a Hall sensor, which is suitable for initial positioning of lens focusing.

[0103] Specifically, the third lens fixing plate 34 is provided with a central light hole 341, which is coaxially arranged with the focusing lens 31;

[0104] The linkage component 6 includes an atomizing motor 61, a motor plate 62, and a rotating plate 63. The atomizing motor 61 is mounted on the motor plate 62, and the motor plate 62 is connected to the third lens fixing plate 34 via a second support rod 9. The rotating shaft of the atomizing motor 61 passes through the motor plate 62 and is connected to one end of the rotating plate 63, while the other end of the rotating plate 63 is connected to the atomizing sheet 5. Driving the rotating shaft of the atomizing motor 61 to rotate and causing the rotating plate 63 to rotate synchronously, thereby causing the atomizing sheet 5 to enter or move out of the projection range of the central light hole 341.

[0105] It should be noted that, driven by the atomizing motor 61, the atomizing plate 5 can move from its initial position into the projection range of the central light hole 341, or it can return to its initial position from the central light hole 341 in the opposite direction.

[0106] More specifically, the shaft of the atomizing motor 61 passes through the motor plate 62 and is connected to one end of the rotating plate 63 via a mounting flange 64;

[0107] More specifically, the atomizing plate 5 is bonded to the rotating plate 63 with adhesive, but this embodiment does not limit the connection method between the atomizing plate 5 and the rotating plate 63;

[0108] Specifically, when the atomizing plate 5 is cut into the projection range of the central light aperture 341, the atomizing plate 5, the focusing lens 31, and the central light aperture 341 are arranged sequentially along the light transmission direction.

[0109] The sliding connection between the sliding bearing assembly 38 and the focusing slide rod 39 ensures the smooth movement of the third lens fixing plate 34 for focusing. The positioning sensor 4 accurately senses whether the third lens fixing plate 34 is in the initial focusing position, ensuring the accuracy of the focusing start. In the linkage assembly 6, the atomizing motor 61 is connected to the third lens fixing plate 34 via the motor plate 62 and the second support rod 9. Its rotating shaft drives the rotating plate 63 to rotate, thereby allowing the atomizing sheet 5 to flexibly enter or move out of the projection range of the central light hole 341. It also realizes the synchronous and smooth movement of the atomizing sheet 5 and the focusing lens 31, enriching the light and shadow effects of the stage beam lights.

[0110] like Figure 14-16 As shown, the light-emitting component 10 includes a built-in light source 101, which is one of a gas blasting light source, an LED light source, or a laser light source. In this embodiment, a laser light source is preferred to obtain a laser beam with high brightness, good monochromaticity, and good directionality.

[0111] Specifically, the light-emitting component 10 further includes a mounting member 102 and a heat dissipation component. The light-emitting component 10 is connected to the light inlet 11 of the lamp holder housing 1 through the mounting member 102. The heat dissipation component includes an inner and outer ring cover 103 and a heat sink 104, with the heat sink 104 surrounding the ring cover 103. The built-in light source 101 is disposed inside the ring cover 103, and one end of the ring cover 103 is connected to the mounting member 102.

[0112] More specifically, the light-emitting component 10 also includes a base plate 105, which covers both the bottom of the ring cover 103 and the bottom of the heat sink 104;

[0113] This embodiment dissipates heat to the surrounding environment through the large-area heat dissipation structure of the heat sink, which greatly improves the heat dissipation efficiency of the built-in light source 101.

[0114] The process of using the optical structure is as follows:

[0115] When the atomization effect is needed, the atomization motor 61 drives the rotating plate 63 to rotate and enter the projection range of the central light hole 341; when the atomization effect is not needed, the atomization motor 61 drives the rotating plate 63 to rotate in the opposite direction and move it out of the projection range of the central light hole 341.

[0116] When it is necessary to illuminate targets at different distances, the third lens fixing plate 34 is moved by the focusing motor, and the third lens fixing plate 34 drives the focusing lens 31 and the atomizing sheet 5 to move synchronously.

[0117] The focusing lens is used to adjust the sharpness of the projected light spot;

[0118] This embodiment also provides a stage lighting fixture having the above-described optical structure;

[0119] Specifically, the stage lighting fixture also includes a controller and a power supply. The controller, positioning sensor 4, focusing motor, and atomizing motor 61 are electrically connected to the power supply. The controller is also electrically connected to the focusing motor and atomizing motor 61, and controls the starting and stopping of the focusing motor and atomizing motor 61 through the controller.

[0120] More specifically, the power supply is a storage battery, such as a lithium battery or a lead-acid battery; or,

[0121] The power supply includes a power connector, through which an external power source is connected.

[0122] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An optical structure for a waterproof stage beam light, comprising a lamp head body for outputting the beam, characterized in that: The lamp head body includes a lamp head shell, which is hollow inside and has a light inlet and a light outlet arranged opposite to each other. A light-emitting component is provided at the light outlet. Inside the lamp head housing, a focusing lens group and a first lens group are arranged sequentially along the optical axis from the light inlet to the light outlet. The focusing lens assembly includes a fogging plate, a focusing lens, and a driving module. The focusing lens is connected to the driving module, and the fogging plate is connected to the focusing lens through a linkage component. The driving module is used to drive the focusing lens to reciprocate back and forth along the optical axis, and the fogging plate moves synchronously with the focusing lens. The first lens group is configured to maintain a fixed position relative to the lamp head housing and does not undergo relative displacement during normal operation of the optical structure; the first lens group includes a front lens group, a lens sealing tube and a middle lens group arranged in sequence, the front lens group and the middle lens group are respectively sealed and connected to the lens sealing tube to form a sealed space, and there is a gap between the front lens group and the middle lens group.

2. The optical structure according to claim 1, characterized in that, The lens sealing cylinder is arranged in a ring shape, and the inner wall of the lens sealing cylinder is provided with a stepped annular step. Each of the annular steps is trumpet-shaped, and multiple annular steps are arranged at equal intervals along the optical axis.

3. The optical structure according to claim 1, characterized in that, The first lens assembly includes a first lens fixing plate, a front lens outer ring, a first sealing ring, and a second sealing ring; the front lens outer ring is connected to the edge of the front lens assembly, the first lens fixing plate, and the lamp head housing, respectively; the first lens fixing plate is sealed to the lamp head housing through the first sealing ring, and the lens sealing cylinder is sealed to the lamp head housing through the second sealing ring.

4. The optical structure according to claim 1, characterized in that, The first lens group also includes a lens housing, a third sealing ring, and a first support plate for mounting the middle lens group. The first support plate is connected to the lamp head housing. The outer side wall of the lens housing extends horizontally outward to form a second lens fixing plate. One side of the second lens fixing plate is sealed to the lens sealing cylinder through the third sealing ring, and the other side of the second lens fixing plate is connected to the first support plate.

5. The optical structure according to claim 1, characterized in that, The drive module includes a second support plate, a third lens fixing plate, and a focusing motor. The focusing motor is mounted on the second support plate, and the second support plate and the third lens fixing plate are arranged sequentially along the light transmission direction. The third lens mounting plate is equipped with a transmission component, which is connected to the motor lead screw of the focusing motor. The third lens mounting plate moves back and forth by driving the motor lead screw to rotate, thereby moving the focusing lens.

6. The optical structure according to claim 5, characterized in that, The drive module includes a sliding bearing assembly, a focusing slide rod, and a positioning sensor. The sliding bearing assembly is mounted on the third lens mounting plate, and the focusing slide rod is mounted on the second support plate. The focusing slide rod is slidably connected to the sliding bearing assembly. The positioning sensor is mounted on the second support plate and is used to sense whether the third lens mounting plate is in the initial focusing position.

7. The optical structure according to claim 5, characterized in that, The third lens mounting plate is provided with a central light hole, which is coaxially arranged with the focusing lens; The linkage component includes an atomizing motor, a motor plate, and a rotating plate. The atomizing motor is mounted on the motor plate, and the motor plate is connected to the third lens fixing plate via a second support rod. The rotating shaft of the atomizing motor passes through the motor plate and is connected to one end of the rotating plate, while the other end of the rotating plate is connected to the atomizing sheet. Driving the rotating shaft of the atomizing motor to rotate causes the rotating plate to rotate synchronously, thereby causing the atomizing sheet to enter or move out of the projection range of the central aperture.

8. The optical structure according to claim 1, characterized in that, The light-emitting component includes a built-in light source, which is one of a gas cannon light source, an LED light source, or a laser light source.

9. The optical structure according to claim 8, characterized in that, The light-emitting component also includes a mounting component and a heat dissipation component. The light-emitting component is connected to the light inlet of the lamp head housing through the mounting component. The heat dissipation component includes an inner and outer ring cover and a heat sink, with the heat sink surrounding the ring cover. The built-in light source is located inside the ring cover, and one end of the ring cover is connected to the mounting component.

10. A stage lighting fixture, characterized in that, It has the optical structure as described in any one of claims 1-9.

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