Dimming regulation and control platform for stage lamp

Abstract

The utility model provides a dimming regulation and control platform for a stage lamp. The dimming regulation and control platform comprises a platform fixing plate, a light source fixing plate, a light source and a dimming regulation mechanism, a light through hole is formed in the middle of the platform fixing plate, the light source is fixedly connected to the light source fixing plate, and the light source fixing plate is fixedly connected to the bottom face of the platform fixing plate, so that the light source is arranged below the light through hole; the dimming adjusting mechanism comprises a first driving motor, a second driving motor, a first dimming sheet, a second dimming sheet and a soft light sheet; and the first driving motor and the second driving motor respectively drive the first dimmer sheet and the second dimmer sheet to rotate, so that the other ends of the first dimmer sheet and the second dimmer sheet respectively rotate from the two opposite sides of the light through hole to the position right above the light through hole, and dimmer adjustment is achieved. According to the utility model, the response speed and the accuracy of dimming adjustment of the platform are improved by utilizing a simple structure, and complete light and shade transition of light spots can be realized in the dimming regulation process of a point light source.

Description

Technical Field

[0001] This utility model relates to the field of stage lighting, specifically to a dimming control platform for stage lighting. Background Technology

[0002] Stage lighting, also known as "stage illumination" or simply "lighting," is one of the means of stage art design. Using stage lighting equipment (such as lighting fixtures, projectors, and control systems) and techniques, it uses light and color and their variations to display the environment, create atmosphere, highlight central characters, create a sense of stage space and time, shape the external image of the stage performance, and provide necessary lighting effects, all in accordance with the development of the plot.

[0003] The light source is the most crucial component of stage lighting. During performances, it's generally necessary to reduce the brightness of the light emitted by the light source to control its intensity and achieve the desired stage lighting effects. Current technology typically requires a dedicated platform for this purpose; however, existing dimming control platforms suffer from flawed structural designs.

[0004] During the dimming process, an unreasonable structural design of the dimming control platform results in poor quality light spots projected by stage lights, affecting the expressiveness of the lighting and consequently the performance. Furthermore, inadequate dimming control can lead to excessively strong light output from the light source, easily damaging the dimming filters and atomizing plates, causing mechanical failures. Therefore, it is evident that existing dimming control platforms generally suffer from poor dimming effects and insufficient durability, requiring improvement and refinement. Utility Model Content

[0005] In view of this, it is necessary to provide a dimming control platform for stage lights to address the problems existing in the prior art, and to improve the dimming control effect and durability of stage lights through a more reasonable structural design.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dimming control platform for stage lights includes a platform fixing plate, a light source fixing plate, a light source, and a dimming adjustment mechanism;

[0008] A light-transmitting hole is provided in the middle of the platform fixing plate, and the light source is fixedly connected to the light source fixing plate. The light source fixing plate is fixedly connected to the bottom surface of the platform fixing plate, so that the light source is positioned below the light-transmitting hole.

[0009] The light reduction adjustment mechanism includes a first drive motor, a second drive motor, a first light reduction sheet, a second light reduction sheet, and a diffuser. The first drive motor and the second drive motor are respectively located on opposite sides of the light-transmitting hole and fixedly connected to the bottom surface of the platform fixing plate. The output shafts of the first drive motor and the second drive motor pass through the platform fixing plate and extend above it. One end of the first light reduction sheet is fixedly connected to the output shaft of the first drive motor via a fixing flange, and one end of the second light reduction sheet is fixedly connected to the output shaft of the second drive motor via a fixing flange. The other side of the first light reduction sheet and the second light reduction sheet are respectively provided with light reduction control grooves, and a diffuser is fixedly connected to the light reduction control groove of the second light reduction sheet. The first drive motor and the second drive motor drive the first light reduction sheet and the second light reduction sheet to rotate, so that the other ends of the first light reduction sheet and the second light reduction sheet rotate from opposite sides of the light-transmitting hole to directly above the light-transmitting hole. By merging the light reduction control grooves on the first light reduction sheet and the second light reduction sheet, light reduction adjustment is achieved.

[0010] Furthermore, it also includes a beam effect adjustment mechanism;

[0011] The beam effect adjustment mechanism includes a beam effect plate, an effect plate fixing plate, and a third drive motor. The beam effect plate is fixedly connected to one end of the effect plate fixing plate, and the other end of the effect plate fixing plate is provided with a transmission pulley and rotatably connected to the upper surface of the platform fixing plate. The third drive motor is fixedly connected to the bottom surface of the platform fixing plate. After the output shaft of the third drive motor passes through the platform fixing plate, it is connected to the transmission pulley at the other end of the effect plate fixing plate above the platform fixing plate to drive the effect plate fixing plate to rotate, so as to move the beam effect plate in or out above the light transmission hole.

[0012] Furthermore, the upper surface of the fixed platform plate is provided with a first limiting post and a second limiting post; the first light-reducing sheet is provided with an arc-shaped first limiting groove, and the second light-reducing sheet is provided with an arc-shaped second limiting groove; the first limiting post is disposed in the first limiting groove, and the two are matched with each other to limit the rotational stroke of the first light-reducing sheet; the second limiting post is disposed in the second limiting groove, and the two are matched with each other to limit the rotational stroke of the second light-reducing sheet.

[0013] Furthermore, a third limiting post is provided on the upper surface of the fixed platform plate, and a protruding positioning plate is provided at the other end of the effect film fixing plate; the third limiting post and the positioning plate match each other to limit the rotation stroke of the effect film fixing plate.

[0014] Furthermore, an optical heat shield is installed at the light-transmitting hole to protect the light-reducing filter.

[0015] Furthermore, a first air duct and a second air duct are fixedly connected to the light source fixing plate, and the first air duct and the second air duct are respectively arranged on opposite sides of the light source; a first cooling fan and a second cooling fan are fixedly connected to the bottom surface of the platform fixing plate, the air outlet of the first cooling fan is connected to the first air duct, and the air outlet of the second cooling fan is connected to the second air duct, respectively used to blow air to the light source from opposite sides to dissipate heat.

[0016] This invention uses two drive motors to directly drive a pair of neutral density filters to rotate in opposite directions. The simple structure improves the response speed and accuracy of the platform's dimming adjustment, enabling a complete transition between light and dark spots during dimming control of point light sources. Furthermore, this invention utilizes limiting posts and grooves to reasonably restrict the rotational stroke of the neutral density filters, effectively preventing collisions and improving the safety of the filters and the durability of the entire platform system. Attached Figure Description

[0017] Figure 1 This is an exploded view of a dimming control platform for stage lights provided in an embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of the top structure of a dimming control platform for stage lights provided in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the bottom structure of a dimming control platform for stage lights provided in an embodiment of this utility model. Detailed Implementation

[0020] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 3 As shown in the figure, the present invention provides a dimming control platform for stage lights, including a platform fixing plate 1, a light source fixing plate 2, a light source 3, and a dimming adjustment mechanism.

[0022] The platform fixing plate 1 has a light-transmitting hole in the middle, the light source 3 is fixedly connected to the light source fixing plate 2, and the light source fixing plate 2 is fixedly connected to the bottom surface of the platform fixing plate 1, so that the light source 3 is positioned below the light-transmitting hole.

[0023] The light reduction adjustment mechanism includes a first drive motor 41, a second drive motor 42, a first light-reducing sheet 51, a second light-reducing sheet 52, and a diffuser 7. The first drive motor 41 and the second drive motor 42 are respectively disposed on opposite sides of the light-transmitting hole and fixedly connected to the bottom surface of the platform fixing plate 1. The output shafts of the first drive motor 41 and the second drive motor 42 pass through the platform fixing plate 1 and extend to the top of the platform fixing plate 1. One end of the first light-reducing sheet 51 is fixedly connected to the output shaft of the first drive motor 41 through a fixing flange, and one end of the second light-reducing sheet 52 is fixedly connected to the output shaft of the first drive motor 41 through a fixing flange. On the output shaft of the second drive motor 42, the other side of the first light-reducing sheet 51 and the second light-reducing sheet 52 are respectively provided with recessed light-reducing control grooves 50, and a diffuser 7 is fixedly connected to the light-reducing control groove 50 of the second light-reducing sheet 52; the first drive motor 41 and the second drive motor 42 respectively drive the first light-reducing sheet 51 and the second light-reducing sheet 52 to rotate, so that the other ends of the first light-reducing sheet 51 and the second light-reducing sheet 52 rotate from opposite sides of the light-transmitting hole to directly above the light-transmitting hole. By splicing the light-reducing control grooves 50 on the first light-reducing sheet 51 and the second light-reducing sheet 52 together, light reduction adjustment is achieved.

[0024] As an improvement, the upper surface of the fixed platform plate 1 is provided with a first limiting post 55 and a second limiting post 56; the first light-reducing sheet 51 is provided with an arc-shaped first limiting groove 53, and the second light-reducing sheet 52 is provided with an arc-shaped second limiting groove 54; the first limiting post 55 is disposed in the first limiting groove 53, and the two match each other to limit the rotational stroke of the first light-reducing sheet 51; the second limiting post 56 is disposed in the second limiting groove 54, and the two match each other to limit the rotational stroke of the second light-reducing sheet 52.

[0025] Furthermore, this embodiment also includes a beam effect adjustment mechanism; the beam effect adjustment mechanism includes a beam effect plate 60, an effect plate fixing plate 61, and a third drive motor 43; the beam effect plate 60 is fixedly connected to one end of the effect plate fixing plate 61, and the other end of the effect plate fixing plate 61 is provided with a transmission pulley 62 and is rotatably connected to the upper surface of the platform fixing plate 1; the third drive motor 43 is fixedly connected to the bottom surface of the platform fixing plate 1, and the output shaft of the third drive motor 43 passes through the platform fixing plate 1 and is connected to the transmission pulley 62 at the other end of the effect plate fixing plate 61 above the platform fixing plate 1, for driving the effect plate fixing plate 61 to rotate, so as to move the beam effect plate 60 into or out above the light-transmitting hole.

[0026] As an improvement, a third limiting post 64 is provided on the upper surface of the fixed platform plate 1, and a protruding positioning plate 63 is provided at the other end of the effect film fixing plate 61; the third limiting post 64 and the positioning plate 63 match each other to limit the rotation stroke of the effect film fixing plate 61.

[0027] Furthermore, an optical heat shield 30 for protecting the light-absorbing sheet is installed at the light-transmitting hole.

[0028] Furthermore, a first air duct 81 and a second air duct 82 are fixedly connected to the light source fixing plate 2, and the first air duct 81 and the second air duct 82 are respectively arranged on opposite sides of the light source 3; a first cooling fan 91 and a second cooling fan 92 are fixedly connected to the bottom surface of the platform fixing plate 1, the air outlet of the first cooling fan 91 is connected to the first air duct 81, and the air outlet of the second cooling fan 92 is connected to the second air duct 82, respectively used to blow air to the light source from opposite sides of the light source 3 for heat dissipation.

[0029] This invention uses two drive motors to directly drive a pair of neutral density filters to rotate in opposite directions. The simple structure improves the response speed and accuracy of the platform's dimming adjustment, enabling a complete transition between light and dark spots during dimming control of point light sources. Furthermore, this invention utilizes limiting posts and grooves to reasonably restrict the rotational stroke of the neutral density filters, effectively preventing collisions and improving the safety of the filters and the durability of the entire platform system.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dimming control platform for stage lights, characterized in that, Includes a platform mounting plate, a light source mounting plate, a light source, and a dimming adjustment mechanism; A light-transmitting hole is provided in the middle of the platform fixing plate, and the light source is fixedly connected to the light source fixing plate. The light source fixing plate is fixedly connected to the bottom surface of the platform fixing plate, so that the light source is positioned below the light-transmitting hole. The light reduction adjustment mechanism includes a first drive motor, a second drive motor, a first light reduction sheet, a second light reduction sheet, and a diffuser. The first drive motor and the second drive motor are respectively located on opposite sides of the light-transmitting hole and fixedly connected to the bottom surface of the platform fixing plate. The output shafts of the first drive motor and the second drive motor pass through the platform fixing plate and extend above it. One end of the first light reduction sheet is fixedly connected to the output shaft of the first drive motor via a fixing flange, and one end of the second light reduction sheet is fixedly connected to the output shaft of the second drive motor via a fixing flange. The other side of the first light reduction sheet and the second light reduction sheet are respectively provided with light reduction control grooves, and a diffuser is fixedly connected to the light reduction control groove of the second light reduction sheet. The first drive motor and the second drive motor drive the first light reduction sheet and the second light reduction sheet to rotate, so that the other ends of the first light reduction sheet and the second light reduction sheet rotate from opposite sides of the light-transmitting hole to directly above the light-transmitting hole. By merging the light reduction control grooves on the first light reduction sheet and the second light reduction sheet, light reduction adjustment is achieved.

2. The dimming control platform for stage lights according to claim 1, characterized in that, It also includes a beam effect adjustment mechanism; The beam effect adjustment mechanism includes a beam effect plate, an effect plate fixing plate, and a third drive motor. The beam effect plate is fixedly connected to one end of the effect plate fixing plate, and the other end of the effect plate fixing plate is provided with a transmission pulley and rotatably connected to the upper surface of the platform fixing plate. The third drive motor is fixedly connected to the bottom surface of the platform fixing plate. After the output shaft of the third drive motor passes through the platform fixing plate, it is connected to the transmission pulley at the other end of the effect plate fixing plate above the platform fixing plate to drive the effect plate fixing plate to rotate, so as to move the beam effect plate in or out above the light transmission hole.

3. The dimming control platform for stage lights according to claim 1, characterized in that, The upper surface of the platform fixing plate is provided with a first limiting post and a second limiting post; the first light-reducing sheet is provided with an arc-shaped first limiting groove, and the second light-reducing sheet is provided with an arc-shaped second limiting groove; the first limiting post is provided in the first limiting groove, and the two are matched with each other to limit the rotation stroke of the first light-reducing sheet; the second limiting post is provided in the second limiting groove, and the two are matched with each other to limit the rotation stroke of the second light-reducing sheet.

4. The dimming control platform for stage lights according to claim 2, characterized in that, The upper surface of the platform fixing plate is provided with a third limiting post, and the other end of the effect film fixing plate is provided with a protruding positioning plate; the third limiting post and the positioning plate match each other to limit the rotation stroke of the effect film fixing plate.

5. The dimming control platform for stage lights according to claim 1, characterized in that, An optical heat shield is installed at the light-transmitting hole to protect the light-reducing filter.

6. The dimming control platform for stage lights according to claim 1, characterized in that, A first air duct and a second air duct are fixedly connected to the light source fixing plate, and the first air duct and the second air duct are respectively arranged on opposite sides of the light source; a first cooling fan and a second cooling fan are fixedly connected to the bottom surface of the platform fixing plate, the air outlet of the first cooling fan is connected to the first air duct, and the air outlet of the second cooling fan is connected to the second air duct, respectively used to blow air to the light source from opposite sides to dissipate heat.

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