Stage lamp with precise positioning of rotating disc

Abstract

A stage lamp with precise positioning of rotating disc, comprising a lamp head and a support frame pivotally connected to the outer side of the lamp head, the lamp head comprising a light source emitting a light beam, a pattern effect disc with a plurality of pattern pieces in the direction of light beam emission, a drive assembly driving the pattern effect disc to move so that the pattern pieces on the pattern effect disc rotate in and out of the light beam in turn, a gray scale sensor detecting the intensity of reflected light of the pattern effect disc, and a memory pre-storing the readings of the gray scale sensor when each pattern piece is directly opposite the light beam. The surface of the pattern effect disc produces reflected light after being irradiated by the light beam. The gray scale sensor arranged near the pattern effect disc detects the numerical value of the intensity of the reflected light and the data recorded in advance. Only the numerical value of the intensity of the reflected light of the pattern effect disc at the moment needs to be detected by the gray scale sensor, and compared with the numerical value of the intensity of the reflected light of the pattern effect disc recorded in advance, whether the pattern effect disc is rotated in place can be known.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting technology, and more specifically, to a stage light with a rotating disc for precise positioning. Background Technology

[0002] Stage lights, as a type of customized stage lighting fixture, utilize different types of rotating disks to create light spots of various shapes and colors. In practical applications, accurate positioning of the rotating disks is crucial for precisely achieving the desired lighting effects. Currently, magnetic positioning is commonly used for rotating disk positioning. While widely adopted, magnetic positioning is inaccurate. Due to variations in the strength of the magnetic field, the force exerted on the inductive magnet also changes. This can lead to situations where the pattern piece is identified by the magnetic field before reaching the positioning point. Inaccurate positioning information results in errors in the rotating disk's rotation angle, consequently affecting the projected light effects. Utility Model Content

[0003] To overcome at least one of the defects described in the prior art, this utility model provides a stage light with precise positioning of a rotating disk, effectively solving the rotation positioning error of the rotating disk, obtaining and correcting the error value of the rotating disk, and making its positioning more accurate.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a stage lamp with precise positioning of a rotating disk, including a lamp head and a support frame pivotally connected to the outside of the lamp head. The lamp head includes a light source that emits a light beam, and along the direction of light beam emission, it also includes a pattern effect disk with multiple pattern pieces, and a driving component that drives the pattern effect disk to move so that the pattern pieces on it alternately cut into / out of the light beam. It also includes a grayscale sensor that detects the reflectivity of the pattern effect disk, and a memory that pre-stores the grayscale sensor readings when each pattern piece is facing the light beam.

[0005] When the surface of the pattern effect disc is illuminated by a beam of light, it reflects light. A grayscale sensor placed near the pattern effect disc detects the intensity of the reflected light and records the data in advance. When the lamp needs to detect the rotation angle of the pattern effect disc during operation, it is only necessary to use the grayscale sensor to detect the intensity of the reflected light of the pattern effect disc at the current time, compare it with the pre-recorded intensity of the reflected light of the pattern effect disc, and then determine whether the pattern effect disc has rotated to the correct position, that is, whether the pattern piece is facing the beam of light, and make fine adjustments for precise positioning.

[0006] Furthermore, the grayscale sensor also includes a supplementary light source for illuminating the pattern effect disk. This increases the reflectivity of the pattern effect disk, facilitating the grayscale sensor's reception. Additionally, when the light source is not operating, the supplementary light source illuminates the pattern effect disk, ensuring the grayscale sensor can properly detect and record values.

[0007] Furthermore, the memory stores two sets of data: the first set contains data for each pattern piece facing the light beam under the illumination of the light source and the supplementary light source; the second set contains data for each pattern piece facing the light beam under the illumination of the light source. This provides two options to verify and compare the intensity of reflected light from the pattern pieces under different conditions.

[0008] Furthermore, it also includes a mounting plate, with the grayscale sensor disposed on the side of the mounting plate near the pattern effect disc. This facilitates the installation and fixation of the grayscale sensor for detecting the pattern effect disc.

[0009] Furthermore, the distance between the grayscale sensor and the pattern effect disk is 10-20mm. Increasing the distance between the grayscale sensor and the pattern effect disk can increase the range of light emitted by the supplementary light source covering the pattern effect disk and increase the range of reflected light detected and received by the grayscale sensor.

[0010] Furthermore, a light-shielding plate is provided around the grayscale sensor on the side of the mounting plate closest to the pattern effect disk. The light-shielding plate can block external light from entering the detection area, preventing the grayscale sensor from being affected by external light and ensuring the accuracy of the detection data.

[0011] Furthermore, the grayscale sensor detects the patterned patch and its surrounding reflections directly opposite the beam position. When the beam passes through the patterned patch, the light from the light source can increase the intensity of the reflections on the patterned patch and its surroundings. This increased intensity of reflections facilitates reception and detection by the grayscale sensor.

[0012] Furthermore, the pattern piece is mounted on the pattern effect disk via a base, and the base protrudes from the pattern effect disk towards the grayscale sensor. The closer the base is to the pattern effect disk, the closer the light reflected from the base can be received by the grayscale sensor.

[0013] Furthermore, the base is pivotally connected to the pattern effect disk. The base drives the pattern pieces to rotate, achieving a combination of revolution and rotation, increasing selectivity, and diversifying the performance effects.

[0014] Furthermore, the pattern piece is at least one of a patterned sheet, a prism sheet, a frosting sheet, and a color sheet. Patterned sheets can enrich the shape of the light beam, prism sheets can split the light beam into multiple parts, frosting sheets can soften the light beam, and color sheets can adjust the color of the light beam, making them widely applicable and offering diverse effects. Attached Figure Description

[0015] Figure 1 This is a simplified schematic diagram illustrating the working principle of the grayscale sensor of this utility model.

[0016] Figure 2A schematic diagram of the assembly structure of the pattern effect plate of this utility model.

[0017] Figure 3 This is a schematic diagram of the assembly structure of the mounting plate and grayscale sensor of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall structure of a stage light with a precision positioning effect component according to this utility model.

[0019] In the picture: 100, Lamp holder; 110, Light source; 120, Mounting plate; 130, Light shield; 140, Driver assembly; 150, Light passage hole; 160, Mounting post; 200, Pattern effect disc; 210, Pattern piece; 220, Base; 300, Grayscale sensor; 310, Fill light body; 400, Memory; 500, Support frame. Detailed Implementation

[0020] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0021] like Figures 1 to 4 This utility model provides a stage light with precise positioning of a rotating disk, including a lamp head 100 and a support frame 500 pivotally connected to the outside of the lamp head 100. The lamp head 100 includes a light source 110 that emits a light beam, and a pattern effect disk 200 with multiple pattern pieces 210 along the light beam emission direction. It also includes a driving component 140 that drives the pattern effect disk 200 to move so that the pattern pieces 210 on it alternately cut into / out of the light beam, a grayscale sensor 300 that detects the reflectivity of the pattern effect disk 200, and a memory 400 that pre-stores the readings of the grayscale sensor 300 when each pattern piece 210 is facing the light beam.

[0022] When the surface of the pattern effect disk 200 is illuminated by a light beam, it generates reflected light. A grayscale sensor 300, located near the pattern effect disk 200, detects the intensity of the reflected light and records the data in advance. When the lamp needs to detect the rotation angle of the pattern effect disk 200 during operation, it only needs to use the grayscale sensor 300 to detect the current intensity of the reflected light from the pattern effect disk 200. This value will be automatically compared and analyzed with the pre-recorded intensity value of the reflected light from the pattern effect disk 200 to determine the current rotation angle of the pattern effect disk 200. Finally, the position information of the pattern effect disk 200 can be accurately determined, and errors can be easily corrected, improving the accuracy of positioning.

[0023] Preferably, the grayscale sensor 300 further includes a photosensitive element for receiving light, which generates a current signal of different values ​​depending on the intensity of the light after receiving it.

[0024] like Figure 1 and Figure 2 In a preferred embodiment of this utility model, the grayscale sensor 300 further includes a supplementary light source 310 for supplementing light to illuminate the pattern effect disk 200. On the one hand, this increases the reflectivity of the pattern effect disk 200, facilitating the reception by the grayscale sensor 300; on the other hand, when the light source 110 is not working, the supplementary light source 310 illuminates the pattern effect disk 200, ensuring the normal detection and recording of values ​​by the grayscale sensor 300.

[0025] Preferably, the supplementary light source 310 is an LED light-emitting diode, which is small in size and easy to integrate.

[0026] Preferably, the grayscale sensor 300 operates as follows: the light emitted by the light-emitting diode illuminates the pattern effect disk 200, and the light reflected by the pattern effect disk 200 is received by the photosensitive element and converted into a current signal.

[0027] Preferably, the stage light also includes an MCU processor, and the grayscale sensor 300 receives the reflected light and converts it into a current signal, which is then transmitted to the MCU for data processing and storage.

[0028] In a preferred embodiment of this invention, the memory 400 stores two sets of data. The first set contains data on each pattern piece 210 facing the light beam under the illumination of the light source 110 and the supplementary light source 310. The second set contains data on each pattern piece 210 facing the light beam under the illumination of the light source 110. To ensure that the intensity of the reflected light from the pattern piece 210 can be verified and compared under different conditions, two options are provided.

[0029] Preferably, after replacing the pattern effect disk 200, the data needs to be re-detected and stored.

[0030] like Figure 3 and Figure 4 In a preferred embodiment of this invention, a mounting plate 120 is further included, and the grayscale sensor 300 is disposed on the side of the mounting plate 120 near the pattern effect disk 200. The side of the grayscale sensor 300 near the pattern effect disk 200 can directly receive the reflected light from the pattern effect disk 200, resulting in more accurate values.

[0031] Preferably, the mounting plate 120 is arranged parallel to the pattern effect disk 200, and the mounting plate 120 is provided with a light-transmitting hole 150 coaxial with the light beam emitted by the light source 110.

[0032] Preferably, when each of the pattern pieces 210 faces the light beam under the illumination of the light source 110 and the supplementary light body 310, the pattern piece 210 is coaxial with the light-transmitting hole 150.

[0033] like Figure 2 and Figure 3 In a preferred embodiment of this invention, the distance between the grayscale sensor 300 and the pattern effect disk 200 is 10-20mm. Increasing the distance between the grayscale sensor 300 and the pattern effect disk 200 allows the supplementary light 310 to illuminate most of the pattern effect disk 200.

[0034] Preferably, the grayscale sensor 300 is fixed to the mounting plate 120, and the mounting plate 120 forms the gap between the grayscale sensor 300 and the pattern effect disk 200 through the height of the mounting column 160.

[0035] In a preferred embodiment of this invention, a light-shielding plate 130 is provided around the grayscale sensor 300 on the side of the mounting plate 120 near the pattern effect disk 200. When it is necessary to detect the pattern effect disk 200, the light-shielding plate 130 can block the light reflected by other parts, ensuring the accuracy of the detection data.

[0036] like Figure 2 and Figure 3 In a preferred embodiment of this invention, the grayscale sensor 300 detects the pattern piece 210 and its surrounding reflections directly opposite the beam position. This increases the intensity of the reflected light, making it easier for the grayscale sensor 300 to receive the reflected light.

[0037] In a preferred embodiment of this invention, the pattern piece 210 is mounted on the pattern effect disk 200 via a base 220, the base 220 protruding from the pattern effect disk 200 towards the grayscale sensor 300. This further enhances the intensity of light reflected from the pattern effect disk 200.

[0038] Preferably, the base 220 is made of metal.

[0039] Optionally, the periphery of the base 220 and other areas where light reflection is not required are treated with an anti-reflective coating.

[0040] like Figure 2 In a preferred embodiment of this utility model, the base 220 is pivotally connected to the pattern effect disk 200. The base 220 drives the pattern piece 210 to rotate, realizing a combination of revolution and rotation, increasing selectivity, and achieving a diversification of performance effects.

[0041] Preferably, the outer periphery of the base 220 has meshing teeth.

[0042] Preferably, the base 220 rotates by engaging the central gear of the pattern effect disc 200.

[0043] In a preferred embodiment of this utility model, the pattern piece 210 is at least one of a pattern piece, a prism sheet, a frosting lens, and a color piece. The pattern piece can enrich the shape of the light beam, the prism sheet can split the light beam into multiple parts, the frosting lens can soften the light beam, and the color piece can adjust the color of the light beam, making it widely applicable and offering diverse effects.

[0044] Preferably, the pattern piece 210 is a patterned piece.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stage lamp with precise positioning of a rotating disc, comprising a lamp head (100) and a support frame (500) pivotally connected to the outside of the lamp head (100), the lamp head (100) comprising a light source (110) for emitting a light beam, a pattern effect disc (200) with a plurality of pattern pieces (210) in the direction of light beam emission, and a drive assembly (140) for driving the pattern effect disc (200) to move so that the pattern pieces (210) thereon are rotated to cut in and out of the light beam in turn, characterized in that, It also includes a grayscale sensor (300) for detecting the reflectivity of the pattern effect disc (200), and a memory (400) pre-stored with the readings of the grayscale sensor (300) when each of the pattern pieces (210) is facing the light beam.

2. The stage light with precise rotary disk positioning according to claim 1, characterized in that, The grayscale sensor (300) also includes a light source (310) for supplementing light to illuminate the pattern effect disk (200).

3. The stage light with precise rotary disk positioning according to claim 2, characterized in that, The memory (400) stores two sets of data. The first set is the data of each of the pattern pieces (210) facing the light beam under the illumination of the light source (110) and the supplementary light body (310). The second set is the data of each of the pattern pieces (210) facing the light beam under the illumination of the light source (110).

4. The stage light with precise positioning by a rotating disk according to claim 1, characterized in that, It also includes a mounting plate (120), wherein the grayscale sensor (300) is disposed on the side of the mounting plate (120) near the pattern effect disk (200).

5. The stage light with precise rotary disk positioning according to claim 4, characterized in that, The distance between the grayscale sensor (300) and the pattern effect disk (200) is 10-20mm.

6. The stage light with precise rotary disk positioning according to claim 4, characterized in that, A light-shielding plate (130) is provided around the grayscale sensor (300) on the side of the mounting plate (120) near the pattern effect disk (200).

7. The stage light with precise rotary disk positioning according to claim 1, characterized in that, The grayscale sensor (300) detects the pattern piece (210) facing the beam position and the surrounding reflections.

8. The stage light with precise positioning by a rotating disk according to claim 1, characterized in that, The pattern piece (210) is mounted on the pattern effect disk (200) via a base (220), and the base (220) protrudes from the pattern effect disk (200) toward the grayscale sensor (300).

9. The stage light with precise positioning by a rotating disk according to claim 8, characterized in that, The base (220) is pivotally connected to the pattern effect plate (200).

10. The stage light with precise rotary disk positioning according to claim 1, characterized in that, The pattern piece (210) is at least one of patterned pieces, prism pieces, frosted pieces, and color pieces.

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