WO2016095608A1 - 一种调光装置 - Google Patents

一种调光装置 Download PDF

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Publication number
WO2016095608A1
WO2016095608A1 PCT/CN2015/092605 CN2015092605W WO2016095608A1 WO 2016095608 A1 WO2016095608 A1 WO 2016095608A1 CN 2015092605 W CN2015092605 W CN 2015092605W WO 2016095608 A1 WO2016095608 A1 WO 2016095608A1
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WO
WIPO (PCT)
Prior art keywords
light
stroboscopic
sheet
piece
hole
Prior art date
Application number
PCT/CN2015/092605
Other languages
English (en)
French (fr)
Inventor
蒋伟楷
Original Assignee
广州市浩洋电子有限公司
蒋伟楷
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市浩洋电子有限公司, 蒋伟楷 filed Critical 广州市浩洋电子有限公司
Priority to DK15869119.6T priority Critical patent/DK3236140T3/da
Priority to EP15869119.6A priority patent/EP3236140B1/en
Publication of WO2016095608A1 publication Critical patent/WO2016095608A1/zh
Priority to US15/626,314 priority patent/US10156346B2/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/006—Controlling the distribution of the light emitted by adjustment of elements by means of optical elements, e.g. films, filters or screens, being rolled up around a roller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F21V11/18—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides
    • F21V11/183—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides pivotable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/105—Outdoor lighting of arenas or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the invention relates to a dimming device, in particular to a dimming device which facilitates precise control of the dimming effect; the invention is particularly suitable for the adjustment of stage lighting.
  • two stroboscopic lamps symmetrically disposed on both sides of the central axis of the beam are usually used to adjust the light intensity.
  • the opposite edges of the two stroboscopic lamps are provided with notches.
  • the two stroboscopic lamps gradually block the light beam when entering the beam region symmetrically when moving relatively, and gradually reduce the intensity of the light without changing the shape of the beam.
  • the existing dimmers are usually fixedly disposed on one side of the two stroboscopic backlights, and the atomizing sheet extends beyond the edge of the strobe and covers the gap.
  • the atomizing sheet also enters the beam region symmetrically, diffusing the beam.
  • the trajectory of the atomizing sheet into or out of the beam region is completely limited by the trajectory of the stroboscopic sheet moving in or out, and it is difficult to accurately enter the beam region with an optimal trajectory;
  • the two atomizing sheets are used to diffuse the light beam together. If the processing accuracy is not satisfactory, there is still a gap between the two atomizing sheets when the relative movement reaches the combined position, or the two atomizing sheets arrive at the relative movement. Interference occurs in the merged position, causing the two atomized sheets to be unable to be integrated flatly. In both cases, the atomized sheet cannot completely diffuse the light beam, and it is difficult to achieve an ideal dimming effect.
  • the technical problem to be solved by the present invention is to provide a dimming device that facilitates precise control of the dimming effect.
  • the technical problem to be solved by the present invention is to adopt the following technical solution: a dimming device, including a light source, a total bracket 1, an atomizing sheet 4 for diffusing light, and a stroboscopic sheet 2 for shielding light.
  • the main bracket 1 is provided with a light-passing hole 6 corresponding to the light source.
  • the stroboscopic sheet 2 is provided with a notch, and the stroboscopic sheet 2 and the atomizing sheet 4 are movably mounted on the main bracket 1 .
  • the stroboscopic sheet 2 and the atomizing sheet 4 are respectively driven by independent driving devices, and the notch on the stroboscopic sheet 2 gradually enters as the stroboscopic sheet 2 moves between the inside and the outside of the light passing hole 6, The range of the light-passing apertures 6 is removed, and the atomization sheet 4 covers a portion of the stroboscopic sheet 2 that is located within the range of the light-passing apertures 6 when moving between the inside and the outside of the light-passing aperture 6.
  • the stroboscopic sheet 2 gradually enters the light passing hole from the outside of the light passing hole by the driving device, and gradually blocks the light beam to dim the intensity of the light, and simultaneously atomizes the sheet. 4 gradually enters the light-passing hole from the outside of the light-passing hole by the driving device, and covers the portion of the stroboscopic sheet 2 in the range of the light-passing hole 6, so that the light distribution is uniform and the edge of the light spot is sharp and soft. .
  • the driving stroboscopic film gradually moves from the light passing hole to the outside of the light passing hole, and at the same time, the atomizing film is gradually moved from the light passing hole to the outside of the light passing hole.
  • the stroboscopic and atomizing sheets of the dimming device are driven by independent driving devices, and the movement of the atomizing sheet between the inside and the outside of the light passing hole is not limited by the movement of the stroboscopic sheet, and precise control can be realized.
  • the light beam is diffused by causing the atomizing sheet to enter a specific position of the light passing hole with an optimum trajectory and time.
  • the atomizing sheet 4 is a whole, and there is no gap, and the atomizing sheet can ensure that all of the light passing through the portion of the stroboscopic sheet which is located in the range of the light passing hole is diffused.
  • the stroboscopic sheet 2 is located at the origin and the end point respectively inside and outside the light-passing aperture 6, and the atomization sheet 4 is located inside and outside the light-passing aperture 6 respectively as its origin.
  • An end point; the stroboscopic sheet 2 is two pieces, and the two stroboscopic flashing pieces 2 are located on both sides of the light passing hole 6 and are staggered in the axial direction of the light passing hole 6 to be perpendicular to the light passing hole
  • the plane of the axis of 6 is the projection plane, and the projections on the projection plane are always symmetrical when the two strobes 2 are driven by their driving means to move between the respective origin and end positions, and the two strobes 2 are arranged.
  • the notches 3 can be projected from the respective end positions into the light-passing holes 6 and projected onto the projection plane to form a circumferentially closed hole before reaching the respective origin positions, and the atomizing sheet 4 is always completely blocked when it is at its origin position.
  • the projection of the notch 3 of the two strobes 2 on the projection plane forms a circumferentially closed aperture.
  • the driving device of the stroboscopic device is activated, and the stroboscopic driving device 2 is driven to rotate in the direction of the light-passing hole 6 by the stroboscopic driving device, and is gradually moved in.
  • the light-passing hole 6 is occluded by the stroboscopic sheet 2 during the moving process, thereby gradually reducing the beam intensity; at the same time, the atomizing sheet driving device is activated and the atomizing sheet 4 is gradually moved into the optical path;
  • the atomizing sheet 4 also reaches its origin and covers the hole under the action of its driving device;
  • the stroboscopic flashes are staggered in the direction of the aperture of the light-passing hole, and the two stroboscopic flashlights 2 can continue to move to their respective origins.
  • the circumferentially closed holes formed by the projection of the notch of the two strobes 2 on the projection plane are gradually reduced.
  • the atomizing sheet 4 held at the origin always covers the circumferentially closed hole formed by the projection of the notch 3 on the projection plane.
  • the light beam sequentially passes through the action of the stroboscopic sheet 2 and the atomizing sheet 4 to realize gradual dimming to achieve the effect of dimming the light beam, and further processing by the atomizing sheet 4 makes the dimming uniform and the spot
  • the edges are sharp and soft.
  • the driving device of the atomizing sheet 4 of the present invention is a motor, and the main shaft 7 of the motor is disposed on the main bracket 1 in a direction parallel to the axis of the light-passing hole 6, and the motor main shaft 7 is provided with a motor With the arm 5 rotated therewith, the free end of the arm 5 is fixed with the atomizing sheet 4.
  • the driving device of the stroboscopic sheet 2 is two motors, and the main shafts of the two motors are disposed on the main bracket 1 in a direction parallel to the axis of the light-passing aperture 6
  • the two stroboscopic lamps 2 are independently driven by a motor.
  • the motor is used as a driving device for the atomizing sheet and the stroboscopic sheet, and the operation is simple, the cost is low, and the moving position of the atomizing sheet and the stroboscopic sheet is conveniently controlled.
  • the driving device of the stroboscopic sheet 2 is a motor, and the main shaft 13 of the motor is disposed on the main frame 1 in a direction parallel to the axis of the light-passing hole 6 .
  • the motor main shaft 13 is provided with a driving wheel 12 rotatable therewith, and the driving wheel 12 passes through '8'
  • the belt 11 of the glyph drives a reverse movement of the driven wheel 10, and the two stroboscopic lights 2 are driven by the driving wheel 12 and the driven wheel 10, respectively.
  • the two strobes of this embodiment use a set of driving devices to reduce the components of the entire dimming device and simultaneously realize the synchronous movement of the two strobes.
  • the first support post 9 and the second limit post 8 are further disposed on the main bracket 1 of the present invention, and the atomizer arm 5 is disposed at the first limit post 9 and the second limit post 8
  • the limiting rod 15 is in contact with the two limiting posts when the motor driving arm 5 drives the free end of the atomizing sheet 4 to reach the origin and the end point thereof.
  • the two limiting columns are simple in structure, and the two correspond to the origin and the end point of the atomizing sheet 4, respectively, and the positioning of the atomizing sheet to the origin and the end position is facilitated.
  • the limiting rod 15 is integrally connected with the atomizing sheet arm 5.
  • the main bracket 1 of the present invention is further provided with a reset column 13 , and an end of one of the two stroboscopic lamps 2 is correspondingly provided with a stroboscopic reset lever 14 , and the reset lever 14 drives the corresponding stroboscopic lamp in the motor When the sheet reaches its origin, it is in a position to be pressed against the stroboscopic reset column 13.
  • the two strobes, in particular, the driving device directly controls the stroke thereof, and the reset column 13 is simple in structure and corresponding to the origin of the stroboscopic sheet 2, facilitating the positioning of the stroboscopic sheet 2 to the origin, and determining the starting point of the stroboscopic sheet.
  • the strobe 2 mounted on the driving wheel 12 is integrally connected with the stroboscopic reset lever 14 at its end.
  • the stroboscopic sheet 2 of the present invention has a notch formed on the edge facing the optical path in a V shape, a zigzag shape, or a finger shape.
  • Figure 1 is a schematic exploded view of the present invention
  • Figure 2 is a schematic view of the assembly structure of the present invention, in which case the two strobes are in a position to form a circumferentially closed hole on the projection plane with the notch reaching both;
  • FIG 3 is a vertical cross-sectional view of the second embodiment of the present invention, in which the two strobes are in a position where the gaps reaching the two form a circumferentially closed hole on the projection plane, and the atomizing sheet is moved to its origin.
  • the dimming device shown in FIGS. 1 to 3 is an embodiment of the present invention, and includes a light source (not shown), a main support 1, an atomizing sheet 4 for diffusing light, and two frequencies for blocking light.
  • the flashing plate 2 has a light-passing hole 6 corresponding to the light source, and the stroboscopic sheet 2 has a notch, the stroboscopic sheet 2 is a metal piece, and the two-frequency flashing piece 2 has a V on the edge facing the optical path.
  • a shape, a zigzag, or a finger-shaped notch, the atomizing sheet 4 is a transmissive glass sheet having a diffusing property.
  • the stroboscopic sheet 2 and the atomizing sheet 4 are movably mounted on the main frame 1, and the stroboscopic sheet 2 and the atomizing sheet 4 are respectively driven by motors independent of each other.
  • the first support post 9 and the second limit post 8 are further disposed on the main bracket 1 , and the atomizer arm 5 is provided with a limiting rod 15 between the first limit post 9 and the second limit post 8 .
  • the stopper rod 15 is integrally connected with the atomizing sheet arm 5.
  • the limiting rod 15 is in contact with the two limiting posts to limit the position when the motor driving arm 5 drives the atomizing piece 4 at the free end thereof to reach the origin and the end point thereof.
  • the main bracket 1 is further provided with a reset column 13 , and the end of one of the two stroboscopic lamps 2 is correspondingly provided with a stroboscopic reset lever 14 , and the reset lever 14 is located when the motor drives its corresponding stroboscopic sheet to reach its origin The position where the stroboscopic reset column 13 is pressed.
  • the strobe 2 mounted on the driving wheel 12 is integrally connected to the stroboscopic reset lever 14 at its end.
  • the driving device of the two stroboscopic lamps 2 is a motor, and the main shaft 13 of the motor is disposed on the main frame 1 with its axis parallel to the axis of the light-passing hole 6, and the motor main shaft 13 is provided with a driving wheel that can rotate therewith. 12, the drive wheel 12 passes '8' The belt 11 of the glyph drives a reverse movement of the driven wheel 10, and the two stroboscopic lights 2 are driven by the driving wheel 12 and the driven wheel 10, respectively.
  • the two strobes use the same set of driving devices to reduce the components of the entire dimming device and simultaneously realize the synchronous movement of the two strobes.
  • the driving device of the stroboscopic chip 2 can also be set as two motors, and the main shafts of the two motors are arranged on the main bracket 1 in a direction parallel to the axis of the light-passing hole 6, and the two stroboscopic lamps 2 are respectively composed of one
  • the motor is driven independently, and only need to ensure the synchronous movement of the two-frequency flash in the process of use.
  • the driving device of the atomizing sheet 4 is a motor, and the main shaft 7 of the motor is disposed on the main bracket 1 with its axis parallel to the axis of the light-passing hole 6, and the motor main shaft 7 is provided with an arm 5 rotatable therewith.
  • the atomizing piece 4 is fixed to the free end of the arm 5.
  • the two stroboscopic lamps 2 are located in the inner and outer ends of the light-passing hole 6 as the origin and the end point respectively, and the atomizing sheet 4 is located inside and outside the light-passing hole 6 as its origin and end point respectively; the stroboscopic sheet 2 is two pieces, two The stroboscopic sheet 2 is located on both sides of the light-passing aperture 6 and is staggered in the axial direction of the light-passing aperture 6, and a plane perpendicular to the axis of the light-passing aperture 6 is a projection plane, and the two stroboscopic lamps 2 are driven by the motor thereof.
  • the projections on the projection plane when moving between the respective origin and end positions are always symmetrical, and the notches 3 provided by the two strobes 2 can enter the area of the light-passing holes 6 from the respective end positions and before reaching the respective origin positions. Projecting a closed hole in the projection plane on the projection plane, the projection of the notch 3 of the two strobes 2 on the projection plane is completely blocked at the origin position to form a circumferentially closed hole.
  • the driving device of the stroboscopic device is driven to drive the two stroboscopic flashes 2 to rotate in the direction of the light-passing hole 6 respectively, and gradually move into the light-passing hole 6 through the stroboscopic driving device, during the moving process.
  • the partial light beam is blocked by the stroboscopic sheet 2, thereby gradually reducing the beam intensity; at the same time, the atomizing sheet driving device is activated and the atomizing sheet 4 is gradually moved into the optical path; and when the gap 3 of the two stroboscopic lamps 2 is When the projection on the projection plane just forms a circumferentially closed hole, the atomizing sheet 4 also reaches its origin and covers the hole under the action of its driving device; since the two stroboscopic lamps are staggered in the direction of the aperture hole axis The two stroboscopic lamps 2 can continue to move to their respective origins.
  • the circumferentially closed holes formed by the projection of the notch of the two strobes 2 on the projection plane are gradually reduced, and the atomization sheet 4 maintained at the origin is always A circumferentially closed hole formed by the projection of the notch 3 on the projection plane.
  • the light beam sequentially passes through the action of the stroboscopic sheet 2 and the atomizing sheet 4 to realize gradual dimming to achieve the effect of dimming the light beam, and further processing by the atomizing sheet 4 makes the dimming uniform and the spot The edges are sharp and soft.
  • the stroboscopic and atomizing sheets of the dimming device are driven by independent driving devices, and the movement of the atomizing sheet between the inside and the outside of the light passing hole is not limited by the movement of the stroboscopic sheet, and precise control can be realized.
  • the light beam is diffused by causing the atomizing sheet to enter a specific position of the light passing hole with an optimum trajectory and time.
  • the atomizing sheet 4 is a whole, and there is no gap, and the atomizing sheet can ensure that all of the light passing through the portion of the stroboscopic sheet having the notch in the range of the light passing hole is diffused.

Abstract

一种调光装置，包括光源、总支架（1）、用于漫射光线的雾化片（4）和用于遮挡光线的频闪片（2），总支架（1）上开有对应光源的通光孔（6），频闪片（2）上开有缺口，频闪片（2）和雾化片（4）均活动安装在总支架（1）上，并分别由独立的驱动装置驱动，频闪片（2）上的缺口随频闪片（2）在通光孔（6）内、外之间移动时逐渐进入、移出通光孔（6）的范围，雾化片（4）在通光孔（6）内、外移动时覆盖频闪片（2）的缺口位于通光孔（6）范围内的部分。由于驱动装置相互独立，雾化片（4）在通光孔（6）内、外之间的移动不会受限于频闪片（2）的移动，可实现精准控制以使雾化片（4）以最佳轨迹、时间进入到通光孔（6）的特定位置，对光束进行漫射。雾化片（4）为整体，不存在间隙，保证对所有经频闪片（2）缺口位于通光孔（6）范围内的部分通过的光线进行漫射。

Description

一种调光装置
技术领域
本发明涉及一种调光装置，具体是一种便于精准控制调光效果的调光装置；本发明尤其适用于舞台灯光的调节。
背景技术
现有的舞台灯光技术中，为了实现渐明渐暗的不同效果，通常需要对光源灯泡发出的光线强度进行调节处理，以适应不同的应用场合。
然而在现有技术中，通常采用两片对称设置在光束中轴两侧的频闪片来实现光强度的调节。两频闪片相对的边缘设有缺口，在进行调光时，两频闪片在相对移动时对称地进入光束区域时逐渐遮挡光束，在不改变光束形状的前提下逐渐降低光的强度。
当频闪片边缘的缺口由于设计误差边缘锐度不精确时，会对光造成扭曲，使得调光不均匀、光斑边缘不够锐利。因此，现有的调光器往往在两频闪片背光的一面分别固定设置一雾化片，雾化片延伸出频闪片的边缘并覆盖住缺口。当两频闪片相对移动进入光束区域时，雾化片也随之对称进入光束区域，对光束进行漫射。然而，由于雾化片与频闪片是固定设置的，雾化片进入或离开光束区域的轨迹完全受限于频闪片移入或移出的轨迹，难以精准地以最佳轨迹进入光束区域；而且采用两片雾化片共同对光束进行漫射，如果加工精度未能达到要求，两片雾化片在相对移动到达合并位置时两者之间依然存在间隙，或者两雾化片在相对移动到达合并位置发生干涉，造成两雾化片无法平整合并，上述两种情况均使雾化片无法完全漫射光束，难以达到理想的调光效果。
发明内容
本发明要解决的技术问题，是提供一种便于精准控制调光效果的调光装置。
本发明要解决的技术问题，可以采用以下的技术方案：一种调光装置，包括光源、总支架1、用于漫射光线的雾化片4和用于遮挡光线的频闪片2，所述总支架1上开有对应光源的通光孔6，所述频闪片2上开有缺口，其特征在于：所述频闪片2和雾化片4均活动安装在总支架1上，所述频闪片2、雾化片4分别由相互独立的驱动装置驱动，所述频闪片2上的缺口随该频闪片2在通光孔6内、外之间移动时逐渐进入、移出所述通光孔6的范围，所述雾化片4在通光孔6内、外之间移动时覆盖所述频闪片2的缺口位于所述通光孔6范围内的部分。
本调光装置进行光强度的调节时，频闪片2由其驱动装置的作用下从通光孔外逐渐进入通光孔内、对光束逐渐遮挡，以调暗光的强度，同时雾化片4在其驱动装置的作用下从其通光孔外逐渐进入通光孔内，覆盖频闪片2的缺口位于所述通光孔6范围内的部分，使得光的分布均匀、光斑边缘锐利柔和。反之需调亮光强度时，则驱动频闪片从通光孔内逐渐移到通光孔外，同时使雾化片也从通光孔内逐渐移到通光孔外。
本调光装置的频闪片和雾化片由相互独立的驱动装置进行驱动，雾化片在通光孔内、外之间的移动不会受限于频闪片的移动，可实现精准控制以使雾化片以最佳的轨迹、时间进入到通光孔的特定位置，对光束进行漫射。而且雾化片4为一整体，其不存在间隙，该雾化片可保证对所有经频闪片的缺口位于所述通光孔范围内的部分通过的光线进行漫射。
作为本发明的一个优选实施例，所述频闪片2位于通光孔6内、外的分别为原点、终点，所述雾化片4位于通光孔6内、外的分别为其原点、终点；所述频闪片2为两片，两频闪片2位于所述通光孔6的两侧、且在所述通光孔6的轴线方向上错开，以垂直于所述通光孔6的轴线的平面为投影平面，所述两频闪片2由其驱动装置驱动在各自的原点与终点位置之间移动时在投影平面上的投影始终对称，所述两频闪片2设置的缺口3可自各自的终点位置进入通光孔6区域后、并在到达各自的原点位置之前在投影平面上投影合成一周向闭合的孔，所述雾化片4位于其原点位置时始终完全遮挡两频闪片2的缺口3在投影平面上的投影形成周向闭合孔。本实施例提供的调光装置，当需要进行调光时，启动频闪片的驱动装置，通过频闪片驱动装置来驱动两频闪片2分别向通光孔6方向旋转移动，并逐渐移入通光孔6，在移动的过程中，通过频闪片2对部分光束进行遮挡，进而可逐渐减低光束强度；同时，启动雾化片驱动装置并将雾化片4逐渐移入光路中； 而当两频闪片2的缺口3在投影平面上的投影刚形成周向闭合的孔时，雾化片4也在其驱动装置的作用下同时到达其原点并覆盖在该孔上；由于两频闪片在通光孔轴线方向上错开，两频闪片2可继续向各自的原点移动，此过程中两频闪片2的缺口在投影平面上的投影形成的周向闭合的孔逐渐缩小，而保持在原点的雾化片4始终覆盖在缺口3在投影平面上的投影形成的周向闭合的孔。在上述过程中，光束依次通过频闪片2、雾化片4的作用，实现渐变式地调光，达到光束渐暗的效果，而且通过雾化片4的进一步处理，使得调光均匀，光斑边缘锐利、柔和。
本发明所述雾化片4的驱动装置为电机，该电机的主轴7以其轴线平行于所述通光孔6轴线的方向设置在所述总支架1上，该电机主轴7上设有一可随其转动的手臂5，该手臂5的自由端固定有雾化片4。
作为本发明的另一优选实施例，所述频闪片2的驱动装置为两电机，两电机的主轴以其轴线平行于所述通光孔6轴线的方向设置在所述总支架1上，所述两频闪片2分别由一电机独立驱动。
采用电机作为雾化片和频闪片的驱动装置，操作简单、成本低且便于精准控制雾化片、频闪片的移动位置。
作为本发明的一个优选实施例，所述频闪片2的驱动装置为一电机，该电机的主轴13以其轴线平行于所述通光孔6轴线的方向设置在所述总支架1上，该电机主轴13上设有一可随其转动的主动轮12，所述主动轮12通过'8' 字形的皮带11带动一从动轮10反向运动，所述两频闪2分别由主动轮12、从动轮10驱动。该实施例的两频闪片同用一套驱动装置，可减少整个调光装置的组成部件，同时实现两频闪片的同步运动。
本发明所述总支架1上还设有第一限位柱9和第二限位柱8，所述雾化片手臂5设有一位于所述第一限位柱9和第二限位柱8之间的限位杆15，该限位杆15在电机驱动手臂5带动其自由端的雾化片4到达其原点和终点时分别与两限位柱接触进行限位。设置的两限位柱结构简单，且两者分别与雾化片4的原点和终点对应，便于雾化片到达原点和终点位置的定位。
所述限位杆15与雾化片手臂5为一体连接。
本发明所述总支架1上还设有复位柱13，所述两频闪片2其中一个的端部相应地设有频闪复位杆14，所述复位杆14在电机驱动其对应的频闪片到达其原点时位于与该频闪复位柱13相抵压的位置。两频闪片尤其驱动装置直接控制其行程，设置的复位柱13结构简单，且与频闪片2的原点对应，便于频闪片2的到达原点的定位，确定以便频闪片的行程起点。
所述安装在主动轮12上的频闪片2与其端部的频闪复位杆14为一体连接。
本发明所述频闪片2在面向光路的边缘上开有的缺口为V形、锯齿形、或手指形状。
附图说明
图1是本发明的爆炸示意图；
图2是本发明的装配结构示意图，此时两频闪片处于即将到达两者的缺口在投影平面上形成周向闭合的孔的位置；
图3是本发明实施例二的竖向剖视示意图，此时两频闪片处于到达两者的缺口在投影平面上形成周向闭合的孔的位置，且雾化片移至其原点。
具体实施方式
如图1~3所示的调光装置为本发明的实施例，其包括光源（未图示）、总支架1、用于漫射光线的雾化片4和两片用于遮挡光线的频闪片2，总支架1上开有对应光源的通光孔6，频闪片2上开有缺口，频闪片2为金属片，且两频闪片2在面向光路的边缘上开有V形、锯齿形、或手指形状的缺口，雾化片4为具有漫射性质的透射式玻璃片。频闪片2和雾化片4均活动安装在总支架1上，频闪片2、雾化片4分别由相互独立的电机驱动。总支架1上还设有第一限位柱9和第二限位柱8，雾化片手臂5设有一位于第一限位柱9和第二限位柱8之间的限位杆15，限位杆15与雾化片手臂5为一体连接。该限位杆15在电机驱动手臂5带动其自由端的雾化片4到达其原点和终点时分别与两限位柱接触进行限位。总支架1上还设有复位柱13，两频闪片2其中一个的端部相应地设有频闪复位杆14，复位杆14在电机驱动其对应的频闪片到达其原点时位于与该频闪复位柱13相抵压的位置。
安装在主动轮12上的频闪片2与其端部的频闪复位杆14为一体连接。
两频闪片2的驱动装置为一电机，该电机的主轴13以其轴线平行于通光孔6轴线的方向设置在总支架1上，该电机主轴13上设有一可随其转动的主动轮12，主动轮12通过'8' 字形的皮带11带动一从动轮10反向运动，两频闪2分别由主动轮12、从动轮10驱动。两频闪片同用一套驱动装置，可减少整个调光装置的组成部件，同时实现两频闪片的同步运动。根据实际情况，也可将频闪片2的驱动装置设为两电机，两电机的主轴以其轴线平行于通光孔6轴线的方向设置在总支架1上，两频闪片2分别由一电机独立驱动，使用过程中只需保证两频闪片的同步相向移动即可。
雾化片4的驱动装置为电机，该电机的主轴7以其轴线平行于通光孔6轴线的方向设置在总支架1上，该电机主轴7上设有一可随其转动的手臂5，该手臂5的自由端固定有雾化片4。
以两频闪片2位于通光孔6内、外的分别为原点、终点，雾化片4位于通光孔6内、外的分别为其原点、终点；频闪片2为两片，两频闪片2位于通光孔6的两侧、且在通光孔6的轴线方向上错开，以垂直于通光孔6的轴线的平面为投影平面，两频闪片2由其电机驱动在各自的原点与终点位置之间移动时在投影平面上的投影始终对称，两频闪片2设置的缺口3可自各自的终点位置进入通光孔6区域后、并在到达各自的原点位置之前在投影平面上投影合成一周向闭合的孔，雾化片4位于其原点位置时始终完全遮挡两频闪片2的缺口3在投影平面上的投影形成周向闭合孔。
当需要进行调光时，启动频闪片的驱动装置，通过频闪片驱动装置来驱动两频闪片2分别向通光孔6方向旋转移动，并逐渐移入通光孔6，在移动的过程中，通过频闪片2对部分光束进行遮挡，进而可逐渐减低光束强度；同时，启动雾化片驱动装置并将雾化片4逐渐移入光路中；而当两频闪片2的缺口3在投影平面上的投影刚形成周向闭合的孔时，雾化片4也在其驱动装置的作用下同时到达其原点并覆盖在该孔上；由于两频闪片在通光孔轴线方向上错开，两频闪片2可继续向各自的原点移动，此过程中两频闪片2的缺口在投影平面上的投影形成的周向闭合的孔逐渐缩小，而保持在原点的雾化片4始终覆盖在缺口3在投影平面上的投影形成的周向闭合的孔。在上述过程中，光束依次通过频闪片2、雾化片4的作用，实现渐变式地调光，达到光束渐暗的效果，而且通过雾化片4的进一步处理，使得调光均匀，光斑边缘锐利、柔和。
本调光装置的频闪片和雾化片由相互独立的驱动装置进行驱动，雾化片在通光孔内、外之间的移动不会受限于频闪片的移动，可实现精准控制以使雾化片以最佳的轨迹、时间进入到通光孔的特定位置，对光束进行漫射。而且雾化片4为一整体，其不存在间隙，该雾化片可保证对所有经频闪片的缺口位于通光孔范围内的部分通过的光线进行漫射。

Claims (10)

  1. 一种调光装置，包括光源、总支架（1）、用于漫射光线的雾化片（4）和用于遮挡光线的频闪片（2），所述总支架（1）上开有对应光源的通光孔（6），所述频闪片（2）上开有缺口，其特征在于：所述频闪片（2）和雾化片（4）均活动安装在总支架（1）上，所述频闪片（2）、雾化片（4）分别由相互独立的驱动装置驱动，所述频闪片（2）上的缺口随该频闪片（2）在通光孔（6）内、外之间移动时逐渐进入、移出所述通光孔（6）的范围，所述雾化片（4）在通光孔（6）内、外之间移动时覆盖所述频闪片（2）的缺口位于所述通光孔（6）范围内的部分。
  2. 根据权利要求1所述的调光装置，其特征在于：所述频闪片（2）位于通光孔（6）内、外的分别为原点、终点，所述雾化片（4）位于通光孔（6）内、外的分别为其原点、终点；所述频闪片（2）为两片，两频闪片（2）位于所述通光孔（6）的两侧、且在所述通光孔（6）的轴线方向上错开，以垂直于所述通光孔（6）的轴线的平面为投影平面，所述两频闪片（2）由其驱动装置驱动在各自的原点与终点位置之间移动时在投影平面上的投影始终对称，所述两频闪片（2）设置的缺口（3）可自各自的终点位置进入通光孔（6）区域后、并在到达各自的原点位置之前在投影平面上投影合成一周向闭合的孔，所述雾化片（4）位于其原点位置时始终完全遮挡两频闪片（2）的缺口（3）在投影平面上的投影形成周向闭合孔。
  3. 根据权利要求1所述的调光装置，其特征在于：所述雾化片（4）的驱动装置为电机，该电机的主轴（7）以其轴线平行于所述通光孔（6）轴线的方向设置在所述总支架（1）上，该电机主轴（7）上设有一可随其转动的手臂（5），该手臂（5）的自由端固定有雾化片（4）。
  4. 根据权利要求2所述的调光装置，其特征在于：所述频闪片（2）的驱动装置为两电机，两电机的主轴以其轴线平行于所述通光孔（6）轴线的方向设置在所述总支架（1）上，所述两频闪片（2）分别由一电机独立驱动。
  5. 根据权利要求2所述的调光装置，其特征在于：所述频闪片（2）的驱动装置为一电机，该电机的主轴（13）以其轴线平行于所述通光孔（6）轴线的方向设置在所述总支架1上，该电机主轴（13）上设有一可随其转动的主动轮（12），所述主动轮（12）通过'8' 字形的皮带（11）带动一从动轮（10）反向运动，所述两频闪（2）分别由主动轮（12）、从动轮（10）驱动。
  6. 根据权利要求3所述的调光装置，其特征在于：所述总支架（1）上还设有第一限位柱（9）和第二限位柱（8），所述雾化片手臂（5）设有一位于所述第一限位柱（9）和第二限位柱（8）之间的限位杆（15），该限位杆（15）在电机驱动手臂（5）带动其自由端的雾化片（4）到达到达其原点和终点时分别与两限位柱接触进行限位。
  7. 根据权利要求6所述的调光装置，其特征在于：所述限位杆（15）与雾化片手臂（5）为一体连接。
  8. 根据权利要求5所述的调光装置，其特征在于：所述总支架（1）上还设有复位柱（13），所述两频闪片（2）其中一个的端部相应地设有频闪复位杆（14），所述复位杆（14）在电机驱动其对应的频闪片到达其原点时位于与该频闪复位柱（13）相抵压的位置。
  9. 根据权利要求8所述的调光装置，其特征在于：所述频闪片（2）与其端部的频闪复位杆（14）为一体连接。
  10. 根据权利要求1~9任一项所述的调光装置，其特征在于：所述频闪片（2）在面向光路的边缘上开有的缺口为V形、锯齿形、波浪形或手指形状。
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