WO2018192131A1 - 一种舞台灯照明装置 - Google Patents

一种舞台灯照明装置 Download PDF

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Publication number
WO2018192131A1
WO2018192131A1 PCT/CN2017/094800 CN2017094800W WO2018192131A1 WO 2018192131 A1 WO2018192131 A1 WO 2018192131A1 CN 2017094800 W CN2017094800 W CN 2017094800W WO 2018192131 A1 WO2018192131 A1 WO 2018192131A1
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WO
WIPO (PCT)
Prior art keywords
light
color
combining
emitting device
monochromatic
Prior art date
Application number
PCT/CN2017/094800
Other languages
English (en)
French (fr)
Inventor
张权
邹思源
张宇飞
李屹
Original Assignee
深圳市绎立锐光科技开发有限公司
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Filing date
Publication date
Application filed by 深圳市绎立锐光科技开发有限公司 filed Critical 深圳市绎立锐光科技开发有限公司
Priority to JP2019556669A priority Critical patent/JP6909866B2/ja
Priority to US16/605,741 priority patent/US20210123582A1/en
Priority to EP17905931.6A priority patent/EP3611426B1/en
Publication of WO2018192131A1 publication Critical patent/WO2018192131A1/zh

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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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • 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
    • F21V9/20—Dichroic filters, i.e. devices operating on the principle of wave interference to pass specific ranges of wavelengths while cancelling others
    • 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
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours

Definitions

  • the utility model relates to the technical field of illumination, and more particularly to a stage lamp illumination device.
  • stage lights because of the multi-primary linear beam emitted by them, can provide the necessary lighting effects, so they always occupy an extremely important position in performances such as stage and theater.
  • a stage lamp illumination device disclosed in the prior art includes: LEDs emitting red, green and blue light respectively (Light-Emitting) Diode, light-emitting diode 10, light-receiving lens 11, lens array 12, light combining sheet 13, double fly-eye lens 14, condensing mirror 15, aperture 16 and field lens 17.
  • the light emitted by the LED 10 is collimated by the light-receiving lens 11 and the lens array 12, and then enters the light-collecting sheet 13 to be combined, and then the light is mixed by the double fly-eye lens 14 and concentrated by the collecting mirror 15, and then formed at the aperture 16.
  • a uniform spot is eventually emitted through the field lens 17 as a near collimated beam.
  • the spot of the light beam finally emitted by the illumination device is very uniform, and The uniformity of the spot will inevitably lead to a decrease in the illumination of the center of the spot. Therefore, the spot that the illumination device finally emits cannot meet the requirements of the center illumination of the spot at a certain distance.
  • the present invention provides a stage lighting device to solve the problem that the existing stage lighting device cannot meet the illumination center illumination of a certain distance.
  • the present invention provides the following technical solutions:
  • a stage lighting device comprising:
  • a light emitting device that emits monochromatic light of at least two colors
  • a light mixing device that mixes the monochromatic light of different colors among the light beams emitted by the light combining device and converts the light beam into a Gaussian light beam
  • the light combining device and the light mixing device are sequentially disposed on the light path of the light emitting device.
  • the light mixing device includes a diffusion sheet;
  • the diffusion sheet includes a light emitting surface and a light incident surface; and the light incident surface is disposed toward the light combining device;
  • the light exit surface has a plurality of microstructures
  • the light incident surface and/or the light exit surface has a plurality of the microstructures.
  • the microstructure is a protrusion formed by processing the diffusion sheet by a laser etching or a chemical etching process;
  • the light pattern of the Gaussian beam is determined by the shape and size of the protrusion.
  • the distance between the diffusion sheet and the light combining device ranges from 1 mm to 10 mm.
  • the light-emitting surface and/or the light-incident surface are provided with an anti-reflection film.
  • the length of the light emitting surface or the light incident surface ranges from 15 mm to 25 mm;
  • the light-emitting surface or the light-incident surface has a width ranging from 15 mm to 25 mm; and the microstructure has a size ranging from 1 ⁇ m. ⁇ 2mm.
  • the method further includes:
  • a condensing mirror, an aperture, and a field lens disposed in sequence on the light path of the light mixing device
  • the Gaussian beam emitted by the light mixing device is emitted through the condensing mirror, the aperture, and the field lens.
  • the light emitting device comprises:
  • a first light emitting device that emits monochromatic light of a first color
  • a second light emitting device that emits monochromatic light of a second color
  • a third light emitting device that emits monochromatic light of a third color
  • a controller connected to the first light emitting device, the second light emitting device, and the third light emitting device, the controller respectively controlling opening, closing, and emitting of the first, second, and third light emitting devices strength.
  • the light combining device comprises two light combining sheets arranged vertically;
  • One of the light combining sheets transmits the monochromatic light of the first color and the monochromatic light of the second color, and reflects the monochromatic light of the third color;
  • the other light combining sheet transmits the monochromatic light of the first color and the monochromatic light of the third color, and reflects the monochromatic light of the second color.
  • the method further includes a light receiving lens array and a lens array;
  • the light-receiving lens array includes a plurality of light-receiving lenses, and the lens array includes a plurality of lenses, and the light-receiving lens and the lens are sequentially disposed on a light-emitting path of the light-emitting device.
  • the stage lamp illumination device provided by the present invention, after the illumination device emits monochromatic light of at least two colors, the light combining device combines the monochromatic light of the at least two colors into a beam of light, and the light mixing device pairs the combined light Monochromatic light of different colors in the light beam emitted by the device is mixed and converted into a Gaussian beam. Since the spot formed by the Gaussian beam is not a uniform spot, but a spot with a bright edge in the middle, that is, the center illuminance of the spot is high, the requirement for the center illumination of the spot at a specific distance can be satisfied.
  • FIG. 1 is a schematic structural view of a conventional stage lighting device
  • FIG. 2 is a schematic structural view of a stage lighting device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of another stage lighting device according to an embodiment of the present invention.
  • Figure 4 is a schematic view of a light beam emitted by the stage lighting device shown in Figure 1;
  • FIG. 5 is a schematic diagram of a light beam emitted by a stage light illumination device according to an embodiment of the present invention.
  • the embodiment of the present invention provides a stage light illumination device, as shown in FIG. 2, comprising a light-emitting device 20 and a light combining device 21 and a light mixing device 22 which are sequentially disposed on the light-emitting path of the light-emitting device 20.
  • the light-emitting device 20 is configured to emit monochromatic light of at least two colors; the light combining device 21 is configured to combine monochromatic light of at least two colors into one beam; and the light mixing device 22 is configured to emit light beams for the light combining device 21.
  • the monochromatic light of different colors is mixed and converted into a Gaussian beam such that the Gaussian beam is emitted as stage illumination.
  • the light-emitting device 20 includes at least two kinds of light-emitting devices, such as a light-emitting device that emits yellow light and a light-emitting device that emits blue light.
  • the present invention is not limited thereto.
  • the light-emitting device 20 may include three types of light emitting devices, as shown in FIG.
  • first light emitting device 201 is used to emit a single color of a single color Light
  • second light emitting device 202 is for emitting monochromatic light of the second color
  • third light emitting device 203 is for emitting monochromatic light of the third color.
  • the monochromatic light of the first color is red light
  • the monochromatic light of the second color is green light
  • the monochromatic light of the third color is blue light.
  • the present invention is not limited thereto, as long as The monochromatic light emitted by the first light-emitting device 201, the second light-emitting device 202, and the third light-emitting device 203, respectively, can synthesize white light.
  • the first light emitting device 201, the second light emitting device 202, and the third light emitting device 203 in this embodiment are all LEDs.
  • the present invention is not limited thereto.
  • the first light emitting device 201, The second light emitting device 202 and the third light emitting device 203 may also be lasers or the like.
  • the light emitting device 20 in this embodiment further includes a controller (not shown) connected to the first light emitting device 201, the second light emitting device 202, and the third light emitting device 203, and the controller is configured to respectively control the first The opening, closing, and luminous intensity of the light emitting device 201, the second light emitting device 202, and the third light emitting device 203.
  • a controller (not shown) connected to the first light emitting device 201, the second light emitting device 202, and the third light emitting device 203, and the controller is configured to respectively control the first The opening, closing, and luminous intensity of the light emitting device 201, the second light emitting device 202, and the third light emitting device 203.
  • the controller controls the first light emitting device 201, the second light emitting device 202, and the third light emitting device 203 to be turned on simultaneously or in a time-sharing manner; when the stage illumination light is not required to be output, the controller controls The first light emitting device 201, the second light emitting device 202, and the third light emitting device 203 are turned off simultaneously or in a time-sharing manner; when it is necessary to adjust the intensity of the stage illumination light, the controller adjusts the first light emitting device 201, the second light emitting device 202, and/or The luminous intensity of the third light emitting device 203.
  • the illumination device 20 in this embodiment further includes a light receiving lens array and a lens array.
  • the light receiving lens array includes a plurality of light receiving lenses 204.
  • the lens array includes a plurality of lenses 205, a light receiving lens 204 and a lens 205.
  • the light paths of the light-emitting devices 201/202/203 are sequentially arranged on the light-emitting path of one of the light-emitting devices 201/202/203 for collimating.
  • the light combining device 21 includes two light-collecting sheets 210 and 211 arranged perpendicularly, as shown in FIG. 2, wherein one of the light-storing sheets 210 transmits the monochromatic light of the first color and the single color of the second color.
  • the light combining sheet 210 transmits red light and green light, and reflects blue light.
  • the diaphragm, the light combining sheet 211 is a diaphragm that transmits red light and blue light and reflects green light.
  • the light-collecting sheets 210 and 211 disposed vertically intersecting constitute three light-inlet ports and one light-emitting port
  • the first light-emitting device 201, the second light-emitting device 202, and the third light-emitting device 203 are respectively disposed at the three light-incident ports.
  • the first light emitting device 201, the second light emitting device 202, and the third light emitting device 203 are disposed at positions such as monochromatic light of the first color, monochromatic light of the second color, and monochromatic light of the third color.
  • the light exits from the light-collecting sheets 210 and 211 can be emitted to combine the three colors of monochromatic light emitted by the light-emitting device 20 into one light, such as preliminary mixing of red light, green light and blue light into a light beam.
  • the light combining sheets 210 and 211 in this embodiment are both dichroic color patches.
  • the present invention is not limited thereto.
  • the light combining sheets 210 and 211 may also be plated with spectroscopic light.
  • the light mixing device 22 includes a diffusion sheet, specifically a microstructure diffusion sheet.
  • the diffusion sheet includes a light incident surface 220 and a light exit surface 221, and the light incident surface 220 is disposed toward the light combining device 21, and the light exit surface 221 has a plurality of microstructures 2210, optionally, a plurality of microstructures.
  • the 2210 is arranged in an array. Based on this, the light beam emitted from the light combining device 21 enters the microstructured diffusion sheet, and is converted into a Gaussian light beam by the scattering of the microstructure 2210.
  • the spot formed by the Gaussian beam is not a uniform spot, but a spot with a bright edge in the middle, that is, the center illuminance of the spot is high, the requirement for the center illumination of the spot at a specific distance can be satisfied.
  • the edge light intensity of the light beam emitted from the diffusion sheet is reduced to 60% of the central light intensity, the divergence half angle is 1° to 10°.
  • the monochromatic light of different colors will be further mixed more uniformly, so that the final stage illumination light meets the visual requirements of the people.
  • the microstructure 2210 is a protrusion formed by processing the light-emitting surface 221 of the diffusion sheet by a process such as laser etching or chemical etching, and the shape and size of the protrusion can be adjusted according to actual conditions. That is, the shape and size of the protrusion can be adjusted by obtaining a specific convex surface curvature according to the requirements of the outgoing Gaussian beam pattern. That is to say, the shape of the microstructure 2210 in this embodiment is not limited to a semicircle, and it may be a quadrangle or a hexagon or the like.
  • the microstructure of the embodiment has a size ranging from 1 ⁇ m to 2 mm. Since the size of the microstructure 2210 is much smaller than the size of the compound eye unit of the fly-eye lens, the light beams finally emitted by the illumination device in this embodiment are no longer separated from each other by a bundle as shown in FIG.
  • the true integrated and visually perfect overall beam shown in Figure 5, which also eliminates the dark areas between the discrete beams, is a good solution to the beam dispersion and dark areas in existing illumination devices. The problem.
  • the diffusion sheet shown in FIG. 2 has a microstructure only on the light-emitting surface 221, but the present invention is not limited thereto.
  • the light-incident surface 220 and/or the light-emitting surface 221 of the diffusion sheet are both There can be multiple microstructures.
  • an anti-reflection film may be provided on the light-incident surface 220 and/or the light-emitting surface 221 of the diffusion sheet.
  • an anti-reflection film may be disposed on the light-incident surface 220 to make the transmittance of the diffusion sheet.
  • the anti-reflection film may be an AR anti-reflection film, and after the AR anti-reflection film is disposed, the transmittance of the diffusion sheet may be increased to 97% or more.
  • the distance between the diffusion sheet and the light combining device 21 may range from 1 mm to 10 mm, and further preferably from 1 mm to 3 mm, so that the space can be reduced, so that the structure of the illumination device is more compact.
  • the overall outer dimensions of the diffusion sheet in this embodiment may be set to be substantially the same as the overall outer dimensions of the existing fly-eye lens, so that the size of other structural members of the illumination device is not changed, and no re-opening is required, thereby avoiding The increase in cost.
  • the length of the light-emitting surface 221 or the light-incident surface 220 of the diffusion sheet ranges from 15 mm to 25 mm; and the width of the light-emitting surface 221 or the light-incident surface 220 ranges from 15 mm to 25 mm.
  • the illumination device further includes a condensing mirror 23, an aperture 24, and a field lens 25 which are sequentially disposed on the light path of the light mixing device 22, and the Gaussian beam emitted by the light mixing device 22 passes.
  • the condensing mirror 23, the aperture 24, and the field lens 25 are finally emitted as stage illumination.
  • the process of emitting illumination light will be described below in conjunction with the illumination device structure shown in FIG.
  • the red light emitted by the first light-emitting device 201, the green light emitted by the second light-emitting device 202, and the blue light emitted from the third light-emitting device 203 are taken as an example for description.
  • the red light emitted from the first light emitting device 201, the green light emitted from the second light emitting device 202, and the blue light emitted from the third light emitting device 203 are collimated by the light receiving lens 204 and the lens 205, and then enter the light combining device 21, that is, the light combining sheet.
  • the light mixing device 22 that is, the diffusion sheet, performs the mixing of the light mixing and the Gaussian beam, and the convergence of the condensing mirror 23, and an uneven spot with a uniform color mixture and a central brightness higher than the edge brightness is formed at the aperture 24, as shown in the figure.
  • the spot eventually exits through the field lens 25 as a near collimated beam that can be emitted as the final stage illumination.
  • the light combining device combines the monochromatic light of the at least two colors into a beam of light, and the light mixing device pairs the combined light Monochromatic light of different colors in the light beam emitted by the device is mixed and converted into a Gaussian beam. Since the spot formed by the Gaussian beam is not a uniform spot, but a spot with a bright edge in the middle, that is, the center illuminance of the spot is high, the requirement for the center illumination of the spot at a specific distance can be satisfied.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

一种舞台灯照明装置，包括：发出至少两种颜色的单色光的发光装置（20），将至少两种颜色的单色光合成一束光的合光装置（21），以及对合光装置（21）出射的光束中不同颜色的单色光进行混光并将光束转换成高斯光束的混光装置（22）；合光装置（21）和混光装置（22）依次设置在发光装置（20）的出光光路上。高斯光束形成的光斑中心照度较高，能够满足人们对特定距离下光斑中心照度的要求。

Description

一种舞台灯照明装置 技术领域
本实用新型涉及照明技术领域，更具体地说，涉及一种舞台灯照明装置。
背景技术
舞台灯，因其所发出的多基色线性光束，能够提供必要的灯光效果，所以，在舞台、剧场等表演场合始终占据着一个极其重要的位置。
现有技术中公开的一种舞台灯照明装置，如图1所示，包括：分别发出红光、绿光和蓝光的LED（Light-Emitting Diode，发光二极管）10、收光透镜11、透镜阵列12、合光片13、双复眼透镜14、聚光镜15、光圈16和场镜17。其中，LED10发出的光经过收光透镜11、透镜阵列12准直后，进入合光片13进行合光，再经过双复眼透镜14的混光和聚光镜15的聚光后，在光圈16处形成一均匀光斑，并最终通过场镜17出射为一近准直光束。
 技术问题
但是，由于该照明装置中不同颜色光的混光是通过双复眼透镜14实现的，而在双复眼透镜14自身光学特性的影响下，该照明装置最终出射的光束的光斑是十分均匀的，而光斑的均匀又必然会导致光斑中心照度的降低，因此，会导致该照明装置最终出射的光斑不能满足人们对特定距离下光斑中心照度的要求。
 技术解决方案
有鉴于此，本实用新型提供了一种舞台灯照明装置，以解决现有的舞台灯照明装置不能满足人们对特定距离下光斑中心照度的要求。
为实现上述目的，本实用新型提供如下技术方案：
一种舞台灯照明装置，包括：
发出至少两种颜色的单色光的发光装置；
将所述至少两种颜色的单色光合成一束光的合光装置；
以及，对所述合光装置出射的光束中不同颜色的单色光进行混光，并将所述光束转换成高斯光束的混光装置；
所述合光装置和混光装置依次设置在所述发光装置的出光光路上。
优选的，所述混光装置包括扩散片；所述扩散片包括出光面和入光面；所述入光面朝向所述合光装置设置；
所述出光面具有多个微结构；
或者，所述入光面和/或所述出光面具有多个所述微结构。
优选的，所述微结构是通过激光刻蚀或化学刻蚀工艺对所述扩散片进行处理形成的一个个的凸起；
所述高斯光束的光型是由所述凸起的形状和尺寸决定的。
优选的，所述扩散片与所述合光装置之间的距离范围为1mm~10mm。
优选的，所述出光面和/或所述入光面设置有增透膜。
优选的，所述出光面或所述入光面的长度范围为15mm~25mm；
所述出光面或所述入光面的宽度范围为15mm~25mm；所述微结构的尺寸范围为1μm ~2mm。
优选的，还包括：
依次设置于所述混光装置出光光路上的聚光镜、光圈和场镜；
所述混光装置出射的所述高斯光束通过所述聚光镜、所述光圈和所述场镜后出射。
优选的，所述发光装置包括：
发射第一种颜色的单色光的第一发光器件；
发射第二种颜色的单色光的第二发光器件；
发射第三种颜色的单色光的第三发光器件；
与所述第一发光器件、第二发光器件和第三发光器件相连的控制器，所述控制器分别控制所述第一发光器件、第二发光器件和第三发光器件的开启、关闭和发光强度。
优选的，所述合光装置包括两个垂直交叉设置的合光片；
其中一个所述合光片透射所述第一颜色的单色光和所述第二颜色的单色光、反射所述第三颜色的单色光；
另一个所述合光片透射所述第一颜色的单色光和所述第三颜色的单色光、反射所述第二颜色的单色光。
优选的，还包括收光透镜阵列和透镜阵列；
所述收光透镜阵列包括多个收光透镜，所述透镜阵列包括多个透镜，所述收光透镜和所述透镜依次设置在所述发光器件的出光光路上。
 有益效果
与现有技术相比，本实用新型所提供的技术方案具有以下优点：
本实用新型所提供的舞台灯照明装置，发光装置发出至少两种颜色的单色光后，合光装置将所述至少两种颜色的单色光合成一束光，混光装置对所述合光装置出射的光束中不同颜色的单色光进行混光，并将所述光束转换成高斯光束出射。由于高斯光束形成的光斑并不是均匀的光斑，而是中间亮边缘暗的光斑，即光斑的中心照度较高，因此，能够满足人们对特定距离下光斑中心照度的要求。
 附图说明
为了更清楚地说明本实用新型实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1现有的一种舞台灯照明装置的结构示意图；
图2为本实用新型实施例提供的一种舞台灯照明装置的结构示意图；
图3为本实用新型实施例提供的另一种舞台灯照明装置的结构示意图；
图4为图1所示的舞台灯照明装置出射的光束的示意图；
图5为本实用新型实施例提供的舞台灯照明装置出射的光束的示意图。
 本发明的最佳实施方式
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
本实用新型实施例提供了一种舞台灯照明装置，如图2所示，包括发光装置20以及依次设置在发光装置20出光光路上的合光装置21和混光装置22。
其中，发光装置20用于发出至少两种颜色的单色光；合光装置21用于将至少两种颜色的单色光合成一束光；混光装置22用于对合光装置21出射的光束中不同颜色的单色光进行混光，并将所述光束转换成高斯光束，以使所述高斯光束作为舞台照明光出射。
本实施例中，发光装置20包括至少两种发光器件，如一种发射黄光的发光器件和一种发射蓝光的发光器件，当然，本实用新型并不仅限于此，在一个实施例中，发光装置20可以包括三种发光器件，如图2所示，包括第一发光器件201、第二发光器件202和第三发光器件203，其中，第一发光器件201用于发射第一种颜色的单色光，第二发光器件202用于发射第二种颜色的单色光，第三发光器件203用于发射第三种颜色的单色光。
可选的，第一种颜色的单色光为红光，第二种颜色的单色光为绿光，第三种颜色的单色光为蓝光，当然，本实用新型并不仅限于此，只要第一发光器件201、第二发光器件202和第三发光器件203分别发出的单色光能够合成白光即可。此外，本实施例中的第一发光器件201、第二发光器件202和第三发光器件203都为LED，但是，本实用新型并不仅限于此，在其他实施例中，第一发光器件201、第二发光器件202和第三发光器件203还可以为激光器等。
此外，本实施例中的发光装置20还包括与第一发光器件201、第二发光器件202和第三发光器件203相连的控制器（图中未示出），该控制器用于分别控制第一发光器件201、第二发光器件202和第三发光器件203的开启、关闭和发光强度。例如，当需要输出舞台照明光时，控制器会控制第一发光器件201、第二发光器件202和第三发光器件203同时或分时开启；当不需要输出舞台照明光时，控制器会控制第一发光器件201、第二发光器件202和第三发光器件203同时或分时关闭；当需要调节舞台照明光的强度时，控制器调节第一发光器件201、第二发光器件202和/或第三发光器件203的发光强度。
进一步地，本实施例中的照明装置20还包括收光透镜阵列和透镜阵列，收光透镜阵列包括多个收光透镜204，透镜阵列包括多个透镜205，一个收光透镜204和一个透镜205依次设置在一个发光器件201/202/203的出光光路上，用于对发光器件201/202/203出射的光线进行准直。
本实施例中，合光装置21包括两个垂直交叉设置的合光片210和211，如图2所示，其中一个合光片210透射第一颜色的单色光和第二颜色的单色光、反射第三颜色的单色光；另一个合光片211透射第一颜色的单色光和第三颜色的单色光、反射第二颜色的单色光。例如，当第一颜色的单色光为红光，第二颜色的单色光为绿光，第三颜色的单色光为蓝光时，合光片210为透射红光和绿光、反射蓝光的膜片，合光片211为透射红光和蓝光、反射绿光的膜片。
并且，垂直交叉设置的合光片210和211构成三个入光口和一个出光口，第一发光器件201、第二发光器件202和第三发光器件203分别设置在这三个入光口。需要说明的是，第一发光器件201、第二发光器件202和第三发光器件203的设置位置需保证第一颜色的单色光、第二颜色的单色光和第三颜色的单色光都能从合光片210和211的出光口出射，以将发光装置20发出的三种颜色的单色光合成一束光，如将红光、绿光和蓝光初步混合成一束光。
可选的，本实施例中的合光片210和211都是二向色片，当然，本实用新型并不仅限于此，在其他实施例中，合光片210和211还可以是镀有分光透光膜的透光片等。在本实用新型的另一实施例中，合光片210和211也可以采用平行设置的方式来实现不同颜色光的合光，在此不再赘述。
本实施例中，混光装置22包括扩散片，具体为微结构扩散片。如图2所示，该扩散片包括入光面220和出光面221，其入光面220朝向合光装置21设置，其出光面221具有多个微结构2210，可选的，多个微结构2210呈阵列式排布。基于此，合光装置21出射的光束进入微结构扩散片后，在微结构2210的散射作用下转换成高斯光束出射。由于高斯光束形成的光斑并不是均匀的光斑，而是中间亮边缘暗的光斑，即光斑的中心照度较高，因此，能够满足人们对特定距离下光斑中心照度的要求。其中，当扩散片出射的光束的边缘光强降为中心光强的60%时，其发散半角为1°~10°。此外，在微结构2210的散射作用下，不同颜色的单色光会进一步混合的更加均匀，使得最终出射的舞台照明光满足人们的视觉要求。
本实施例中，微结构2210是通过激光刻蚀或化学刻蚀等工艺对扩散片的出光面221进行处理形成的一个个的凸起，该凸起的形状和尺寸可以根据实际情况进行调整，即可以根据对出射的高斯光束光型的需求得到特定的凸起的表面曲率，来对凸起的形状和尺寸进行调整。也就是说，本实施例中微结构2210的形状并不仅限于半圆形，其也可以是四边形或六边形等。
可选的，本实施例中的微结构的尺寸范围为1μm~2mm。由于微结构2210的尺寸远小于复眼透镜的复眼单元的尺寸，因此，本实施例中的照明装置最终出射的光束不再是图4所示的一束一束彼此离散的，而是一束如图5所示的真正的融为一体的且在视觉上十分完美的整体光束，进而也消除了彼此离散的光束中间的暗区，很好的解决了现有的照明装置中光束离散和暗区的问题。
本实施例中，图2所示的扩散片仅出光面221具有微结构，但是，本实用新型并不仅限于此，在其他实施例中，扩散片的入光面220和/或出光面221都可以具有多个微结构。本实施例中，为了增大扩散片的透过率，可以在扩散片的入光面220和/或出光面221设置增透膜。本实施例中，在出光面221具有微结构2210的基础上，可以在入光面220设置增透膜，以使扩散片的透光率。可选的，该增透膜可以是AR增透膜，设置AR增透膜后，扩散片的透光率可以提升至97%及以上。
进一步地，本实施例中，扩散片与合光装置21之间的距离范围可以为1mm~10mm，进一步优选为1mm~3mm，这样可以减小空间，使得照明装置的结构更加紧凑。此外，本实施例中的扩散片的整体外形尺寸可以设置成与现有的复眼透镜的整体外形尺寸大致相同，这样不会造成照明装置其它结构件的尺寸改变，无需重新开模，进而可以避免成本的增加。可选的，扩散片的出光面221或入光面220的长度范围为15mm~25mm；出光面221或入光面220的宽度范围为15mm~25mm。
在本实用新型的一个实施例中，如图3所示，照明装置还包括依次设置于混光装置22出光光路上的聚光镜23、光圈24和场镜25，混光装置22出射的高斯光束通过聚光镜23、光圈24和场镜25后，最终作为舞台照明光出射。
下面结合图3所示的照明装置结构对照明光出射的过程进行描述。其中，以第一发光器件201出射的为红光、第二发光器件202出射的为绿光、第三发光器件203出射的为蓝光为例进行说明。第一发光器件201出射的红光、第二发光器件202出射的绿光、第三发光器件203出射的蓝光经过收光透镜204和透镜205准直后，进入合光装置21即合光片进行合光，再经过混光装置22即扩散片进行混光和高斯光束的转换、以及聚光镜23的会聚后，在光圈24处形成一混色均匀且中心亮度高于边缘亮度的不均匀光斑，如图5所示，该光斑最终通过场镜25出射为一近准直光束，该近准直光束可以作为最终的舞台照明光出射。
本实施例所提供的舞台灯照明装置，发光装置发出至少两种颜色的单色光后，合光装置将所述至少两种颜色的单色光合成一束光，混光装置对所述合光装置出射的光束中不同颜色的单色光进行混光，并将所述光束转换成高斯光束出射。由于高斯光束形成的光斑并不是均匀的光斑，而是中间亮边缘暗的光斑，即光斑的中心照度较高，因此，能够满足人们对特定距离下光斑中心照度的要求。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本实用新型。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本实用新型的精神或范围的情况下，在其它实施例中实现。因此，本实用新型将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

1、一种舞台灯照明装置，其特征在于，包括：
发出至少两种颜色的单色光的发光装置；
将所述至少两种颜色的单色光合成一束光的合光装置；
以及，对所述合光装置出射的光束中不同颜色的单色光进行混光，并将所述光束转换成高斯光束的混光装置；
所述合光装置和混光装置依次设置在所述发光装置的出光光路上。
2、根据权利要求1所述的照明装置，其特征在于，所述混光装置包括扩散片；所述扩散片包括出光面和入光面；所述入光面朝向所述合光装置设置；
所述出光面具有多个微结构；
或者，所述入光面和/或所述出光面具有多个所述微结构。
3、根据权利要求2所述的照明装置，其特征在于，所述微结构是通过激光刻蚀或化学刻蚀工艺对所述扩散片进行处理形成的一个个的凸起；
所述高斯光束的光型是由所述凸起的形状和尺寸决定的。
4、根据权利要求2所述的照明装置，其特征在于，所述扩散片与所述合光装置之间的距离范围为1mm~10mm。
5、根据权利要求2所述的照明装置，其特征在于，所述出光面和/或所述入光面设置有增透膜。
6、根据权利要求2所述的照明装置，其特征在于，所述出光面或所述入光面的长度范围为15mm~25mm；
所述出光面或所述入光面的宽度范围为15mm~25mm；
所述微结构的尺寸范围为1μm~2mm。
7、根据权利要求1所述的照明装置，其特征在于，还包括：
依次设置于所述混光装置出光光路上的聚光镜、光圈和场镜；
所述混光装置出射的所述高斯光束通过所述聚光镜、所述光圈和所述场镜后出射。
8、根据权利要求1所述的照明装置，其特征在于，所述发光装置包括：
发射第一种颜色的单色光的第一发光器件；
发射第二种颜色的单色光的第二发光器件；
发射第三种颜色的单色光的第三发光器件；
与所述第一发光器件、第二发光器件和第三发光器件相连的控制器，所述控制器分别控制所述第一发光器件、第二发光器件和第三发光器件的开启、关闭和发光强度。
9、根据权利要求8所述的照明装置，其特征在于，所述合光装置包括两个垂直交叉设置的合光片；
其中一个所述合光片透射所述第一颜色的单色光和所述第二颜色的单色光、反射所述第三颜色的单色光；
另一个所述合光片透射所述第一颜色的单色光和所述第三颜色的单色光、反射所述第二颜色的单色光。
10、根据权利要求8所述的照明装置，其特征在于，还包括收光透镜阵列和透镜阵列；
所述收光透镜阵列包括多个收光透镜，所述透镜阵列包括多个透镜，所述收光透镜和所述透镜依次设置在所述发光器件的出光光路上。
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