WO2017028780A1 - 一种改善光斑均匀性的舞台灯光学系统 - Google Patents

一种改善光斑均匀性的舞台灯光学系统 Download PDF

Info

Publication number
WO2017028780A1
WO2017028780A1 PCT/CN2016/095560 CN2016095560W WO2017028780A1 WO 2017028780 A1 WO2017028780 A1 WO 2017028780A1 CN 2016095560 W CN2016095560 W CN 2016095560W WO 2017028780 A1 WO2017028780 A1 WO 2017028780A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical system
lens
light
stage lamp
focus
Prior art date
Application number
PCT/CN2016/095560
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
Publication of WO2017028780A1 publication Critical patent/WO2017028780A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • 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
    • F21V5/04—Refractors for light sources of lens shape
    • 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 the field of stage lighting technology, and more particularly to a stage lamp optical system for improving spot uniformity.
  • the existing stage lights can be divided into the following types of lamps according to the realization of functional effects: pattern lights, beam lights, soft lights.
  • the pattern lamp can project a pattern effect with uniform spot and strong boundary feeling
  • the beam lamp can realize the beam effect
  • the soft light lamp can achieve the effect of uniform spot.
  • These three types of lamps usually only achieve a single lighting effect.
  • multiple types of multiple lamps can be combined to achieve a very complicated operation.
  • luminaires capable of realizing various beam effects in the prior art.
  • Chinese patent CN201410089184.3 discloses disposing an optical integrator assembly (ie, a light guide body) in an optical path, and switching the optical path into or out of the optical path as needed through the pattern assembly, the optical integrator assembly, and the light source assembly to achieve a pattern effect and a beam effect.
  • an optical integrator assembly ie, a light guide body
  • switching the optical path into or out of the optical path as needed through the pattern assembly, the optical integrator assembly, and the light source assembly to achieve a pattern effect and a beam effect.
  • the light guiding body is realized by the light guiding body
  • the light guiding body is a rectangular total reflection structure, and the length is relatively long, which increases the physical length of the lighting system, and also It is easy to cause light loss.
  • the position of the light source components in different modes should be adjusted accordingly, and the operation is complicated.
  • the present invention provides a stage light optical system for improving spot uniformity, which is reasonable in design, convenient and practical, and can realize switching of the beam light and the spot effect of the stage lamp.
  • the technical solution adopted by the present invention is: a stage lamp optical system for improving spot uniformity, comprising a light source and a reflector disposed sequentially along a main optical axis, wherein the stage lamp optical system further includes setting A first optical component between the first focus F1 and the second focus F2 of the reflector, the first optical component being a single array lens or a combination of an array lens and a lens or a combination of an array lens and an array lens.
  • the structure of the array lens is a glass substrate, and the lens unit is covered on the glass plane.
  • the longitudinal section of the lens unit is a regular polygon, preferably a regular hexagon or a square, and the mirror elements have the same or different mirror curvatures, and each A lens unit is closely connected together, and adjacent lens units are seamlessly bonded.
  • the array lens can divide the whole beam into thin beams and re-superimpose, so that the light energy can be effectively and uniformly utilized, thereby improving the uniformity of the spot.
  • the transmittance of the array lens after coating can be as high as 98% or more, and the energy of the light is hardly lost.
  • the basic principle of uniform illumination of the array lens the light source emits light, is concentrated by the reflective cup, and then re-integrated through the array lens.
  • the array lens divides the whole beam into a plurality of beamlets. Due to the superposition of the beamlets at the symmetrical position, the micro-non-uniformity of the beamlets is compensated, so that the light energy in the entire aperture is effectively and uniformly utilized.
  • the stage lamp optical system further includes a driving device for driving the first optical component to move in or out of the main optical axis
  • the driving device includes a driving motor and a driving bracket, and an output shaft of the driving motor is connected to one end of the driving bracket,
  • the first optical component is mounted on the other end of the driving bracket, and the driving motor rotates to drive the driving bracket to swing on a plane perpendicular to the main optical axis, thereby implementing the first optical component to move in or out of the main optical axis.
  • the distance h cf of the beam cross section of the first optical component to the second focus F2 of the reflector, wherein c represents a parameter variable, 0 ⁇ c ⁇ 1; f represents the distance from the bottom end of the reflector to the second focus F2.
  • E i represents the light intensity at a certain point of the spot
  • E m represents the peak light intensity in the spot
  • S represents the total area of the spot on the cross section of the beam at the second focus F2
  • S E represents the area of the Q ⁇ 0.85 area in the spot
  • the region of Q ⁇ 0.85 is defined as the uniform light region, that is, the uniform portion of the spot.
  • the spot area S and the uniform spot area S E of the beam cross section at the second focus F2 can be expressed as follows:
  • a and b respectively represent the exiting light of each lens unit in the array lens array in the X and Y directions
  • the divergence angles, L and W, are the dimensions of the array lens in the X and Y directions, respectively.
  • the optimal value of the parameter variable c is 0.3 to 0.4. At this time, the light intensity and uniformity will reach a balanced effect.
  • the light-emitting point of the light source is disposed at the first focus F1 of the reflector, and the light emitted by the light source is reflected by the ellipsoid of the reflector to converge at the second focus F2 of the reflector.
  • An effect component is disposed at the second focus F2 of the reflector or near the second focus F2 of the reflector.
  • the stage lamp optical system further includes a second optical component (4), and the second optical component is a light-emitting lens group including a focus lens group, a magnifying lens group and a fixed lens group which are sequentially disposed along the light-emitting direction.
  • the first optical component can divide the entire beam into the thin beam and re-superimpose, the optical energy is effectively and uniformly utilized, the uniformity of the spot is improved, and the first optical component can be moved into or out of the optical path through the driving mechanism, when the first optical component is removed.
  • the light source emits concentrated light through the reflector, passes through the effect component, and then passes through the second optical component to form a beam with a very concentrated energy at the center of the spot; when the first optical component moves into the main optical axis, The light passing through the array lens will re-integrate into the second focus of the reflector At point F2, after passing through the effect component and passing through the second optical component, a beam of uniform energy distribution is formed.
  • the transmittance of the coated array lens can be as high as 98% or more, so that the energy of the light is not lost. And the array lens is transmitted through, so the focal length of the lens unit inside can be changed to coincide with the second focus of the reflector, so the physical length of the system is not increased.
  • Figure 1 is a schematic diagram of the principle structure of the optical path.
  • FIG. 2 is a schematic view showing the structure of an array lens model.
  • Figure 3 is a schematic cross-sectional view of the P-P of Figure 2.
  • Figure 4 is a partially enlarged schematic view of G in Figure 2;
  • Figure 5 is a schematic illustration of the position of the first optical component in the optical path.
  • Fig. 6 is a light intensity simulation diagram when there is no array lens.
  • Fig. 7 is a light intensity simulation diagram when there is an array lens.
  • the curve A is a map of the spot before passing through the array lens
  • the curve B is a map of the spot after passing through the array lens.
  • Figure 9 is a schematic view showing the structure of a second embodiment of the present invention.
  • a stage lamp optical system for improving spot uniformity includes a light source, a reflector 1 and a second optical component 4 which are sequentially disposed along a main optical axis, wherein the stage lamp optical system further includes The first optical component 2 between the first focus F1 and the second focus F2 of the reflector 1 is a single array lens.
  • the structure of the array lens is based on glass, and the lens unit is covered on the glass plane.
  • the lens unit is a convex lens unit.
  • the longitudinal section of the lens unit is a regular polygon, preferably a regular hexagon. Or square, the lens unit mirror curvature is the same or different, and each lens unit is closely connected together, and adjacent lens units are seamlessly fitted.
  • the array lens can divide the whole beam into thin beams and re-superimpose, so that the light energy can be effectively and uniformly utilized, thereby improving the uniformity of the spot.
  • the transmittance of the array lens after coating can be as high as 98% or more, and the energy of the light is hardly lost.
  • the stage lamp optical system further includes a driving device for driving the first optical component 2 to move in or out of the main optical axis
  • the driving device includes a driving motor and a driving bracket, and an output shaft of the driving motor and one end of the driving bracket
  • the first optical component is mounted on the other end of the driving bracket, and the driving motor rotates to drive the driving bracket to swing on a plane perpendicular to the main optical axis, thereby implementing the first optical component 2 to move into or out of the main optical axis.
  • the light-emitting point of the light source is disposed at the first focus F1 of the reflector 1 , and the light emitted by the light source is reflected by the ellipsoid of the reflector 1 to converge on the second focus F2 of the reflector.
  • An effect component 3 is disposed at the second focus F2 of the reflector 1 or near the second focus F2 of the reflector, and the effect component 3 may be an effect disk.
  • the second optical component 4 is a light-emitting lens group, and includes a focus lens group 41, a magnifying lens group 42 and a fixed lens group 43 which are sequentially disposed along the light-emitting direction.
  • E i represents the light intensity at a certain point of the spot
  • E m represents the peak light intensity in the spot
  • S represents the total area of the spot on the cross section of the beam at the second focus F2
  • S E represents the area of the Q ⁇ 0.85 area in the spot
  • the region of Q ⁇ 0.85 is defined as the uniform light region, that is, the uniform portion of the spot.
  • the spot area S and the uniform spot area S E of the beam cross section at the second focus F2 can be expressed as follows:
  • a and b respectively represent the exiting light of each lens unit in the array lens array in the X and Y directions
  • the divergence angles, L and W, are the dimensions of the array lens in the X and Y directions, respectively.
  • the optimal value of the parameter variable c is 0.3 to 0.4. At this time, the light intensity and uniformity will reach a balanced effect.
  • the light source emits concentrated light through the reflective cup 1, passes through the effect component 3, and then passes through the second optical component 4, Formed is a beam effect in which the intermediate beam is very concentrated; when the first optical component 2 is moved into the main optical axis, the light passing through the array lens is re-integrated onto the second focus F2 of the reflector, which passes through the effect component 3, and then passes through After the second optical component 4, a uniform spot effect will be formed.
  • Figure 8 is a graph showing the illuminance of the spot luminaire with the first optical component 2 and the stage luminaire without the first optical component 2 as a function of the spot diameter. It can be seen from the figure that when there is no first optical component 2, the illuminance of the spot follows the spot diameter. The change is very obvious. There is a huge difference between the illuminance near the center point of the spot and the illuminance near the edge of the spot. The illuminance near the center point is very strong, so the luminaire will have a distinct beam sensation; In component 2, the illuminance of the spot is very gentle with the change of the spot diameter, and the whole spot is relatively uniform, so the lamp has a uniform spot effect.
  • This embodiment improves the first optical component on the basis of the first embodiment, and the rest of the structure is the same as that of the first embodiment.
  • the first optical component in the embodiment is a combination of an array lens and a lens, specifically, a first convex lens 51, a first array lens 21, and a second array lens which are sequentially disposed along a main optical axis. 22 and a second convex lens 52.
  • the first optical component may also be a combination of an array lens and an array lens, that is, composed of a plurality of array lenses arranged in sequence along the main optical axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种改善光斑均匀性的舞台灯光学系统，包括沿主光轴依次设置的光源和反光杯（１），还包括设置在反光杯（１）的第一焦点Ｆ１和第二焦点Ｆ２之间的第一光学组件（２），第一光学组件（２）为单个阵列透镜或阵列透镜与透镜的组合或阵列透镜与阵列透镜的组合。它能将整个光束分成细光束并重新叠加，使光能量得到有效均匀利用，从而提高光斑的均匀度。

Description

一种改善光斑均匀性的舞台灯光学系统 技术领域
本发明涉及舞台灯具技术领域，更具体地涉及一种改善光斑均匀性的舞台灯光学系统。
背景技术
现有的舞台灯根据实现功能效果来可分为以下几种类型的灯具：图案灯、光束灯、柔光灯。其中，图案灯可投射光斑均匀、边界感较强的图案效果，光束灯则可实现光束效果，而柔光灯则可实现光斑均匀的效果。这三种灯具类型通常都只能实现单一的灯光效果，要达到多种灯光的效果，则需多种类型的多台灯具一起结合使用才能实现，操作非常复杂。为了解决这个问题，现有技术中也有提出能实现多种光束效果的灯具。
中国专利CN201410089184.3，公开了在光路中设置光学积分器组件(即导光体)，通过花样组件、光学积分器组件以及光源组件根据需要相互切换进入或移出光路，以实现图案效果及光束效果的切换，这种方案虽能实现两种效果的切换，但是通过导光体来实现的，导光体是长方形的全反射结构，且长度比较长，这样会增加照明系统的物理长度，而且也容易造成光损，另外，不同模式下的光源组件位置也要相对应的作调整，操作比较复杂。
发明内容
本发明为克服上述现有技术所述的至少一种缺陷，提供一种改善光斑均匀性的舞台灯光学系统，设计合理，方便实用，可以实现舞台灯光束和光斑效果的切换。
为解决上述技术问题，本发明采用的技术方案是：一种改善光斑均匀性的舞台灯光学系统，包括沿主光轴依次设置的光源和反光杯，其中，所述舞台灯光学系统还包括设置在反光杯的第一焦点F1和第二焦点F2之间的第一光学组件，所述第一光学组件为单个阵列透镜或阵列透镜与透镜的组合或阵列透镜与阵列透镜的组合。
进一步的，阵列透镜的结构是以玻璃为衬底，在玻璃平面上布满透镜单元，透镜单元的纵向截面为正多边形，优选为正六边形或者方形，透镜单元镜面曲率相同或者不同，且每一个透镜单元之间是紧密连接在一起的，相邻透镜单元之间为无缝贴合。阵列透镜能将整个光束分成细光束并重新叠加，使光能量得到有效均匀利用，从而提高光斑的均匀度，经过镀膜后的阵列透镜透过率可以高达98％以上，几乎不损耗光的能量。
阵列透镜均匀照明的基本原理：光源发光，经过反光杯汇聚，再经过阵列透镜的重新积分整合。阵列透镜将整个光束分为多个细光束，由于处于对称位置细光束的相互叠加，使细光束的微小不均匀性获得补偿，从而使整个孔径内的光能量得到有效均匀的利用。
本发明中，所述舞台灯光学系统还包括驱动第一光学组件移入或移出主光轴的驱动装置，所述驱动装置包括驱动电机和驱动支架，驱动电机的输出轴与驱动支架的一端连接，第一光学组件安装在驱动支架的另一端，驱动电机转动带动驱动支架在垂直于主光轴的平面上摆动，以此来实现第一光学组件移入或移出主光轴。
所述第一光学组件移入主光轴后，所述第一光学组件到反光杯的第二焦点F2处光束横截面的距离h＝cf，其中，c表示一个参数变量，0＜c＜1；f表示反光杯底端到第二焦点F2的距离。
光斑效果影响分析，定义参数如下：
光强系数：Q＝Ei/Em
均匀度系数：E＝SE/S
Ei表示光斑某点的光强；Em表示光斑内的峰值光强；S表示第二焦点F2处的光束横截面上光斑的总面积；SE表示光斑内Q≥0.85区域的面积，对Q≥0.85区域定义为均匀光区域，即光斑的均匀部分，在同一光斑内，Q越大表示该处的光强越大；E越大，表示该处光斑内光能分布的均匀性越好。
第二焦点F2处的光束横截面上的光斑面积S和均匀光斑面积SE可表示如下：
S＝(2h*tan(a/2)+W)(2h*tan(b/2)+L)
SE＝(2h*tan(a/2)-W)(2h*tan(b/2)-L)
式中：a和b分别表示阵列透镜阵列中每个透镜单元出射光在X和Y方向 的发散角，L和W分别为阵列透镜在坐标轴X和Y方向的尺寸。
将h＝cf带入上式，得出2个公式：
S＝(2cf*tan(a/2)+W)(2cf*tan(b/2)+L)
SE＝(2cf*tan(a/2)-W)(2cf*tan(b/2)-L)
由上式二次函数关系，可知随着距离h的增加，光斑整体面积S和均匀部分面积SE都会随之增大，由于阵列透镜的边长L和W是固定不变的，均匀度系数E(SE和S的比值)会随第一光学组件到反光杯第二焦点F2处光束横截面的距离h的增加而增大。
将上述SE和S代入公式E＝SE/S，可以得出参数c的表达式：
Figure PCTCN2016095560-appb-000001
其中，
A＝4(E-1)f2tan(a/2)*tan(b/2)
B＝2f(E+1)*[Ltan(a/2)+Wtan(b/2)]
D＝WL(E-1)
知道阵列透镜的尺寸大小和透镜单元的曲率，再给出均匀度系数E的目标值，那么我们就可以求出参数c，经过推导计算，得出参数变量c的最佳值为0.3～0.4，此时光强照度和均匀性将达到一个均衡的效果。
本发明中，所述光源的发光点设置在反光杯的第一焦点F1处，光源发出的光经反光杯椭球面反射后的光线汇聚于反光杯的第二焦点F2处。所述反光杯的第二焦点F2处或反光杯的第二焦点F2附近设置有效果组件。
进一步的，所述舞台灯光学系统还包括第二光学组件(4)，所述第二光学组件为出光镜头组，包括沿出光方向依次设置的调焦镜头组、放大镜头组和固定镜头组。
同现有技术相比，本发明的有益效果在于：
由于第一光学组件能将整个光束分成细光束并重新叠加，使光能量得到有效均匀利用，提高光斑的均匀度，且第一光学组件可通过驱动机构移入或移出光路，当第一光学组件移出系统主光轴时，光源经过反光杯发出汇聚的光，通过效果组件，再经过第二光学组件后，形成的是光斑中心位置能量非常集中的光束；当第一光学组件移入主光轴时，经过阵列透镜的光将重新积分汇聚到反光杯的第二焦 点F2上，通过效果组件，再经过第二光学组件后，将形成能量分布均匀的光束。
由于阵列透镜每一个透镜单元之间是紧密连接在一起的，相邻透镜单元之间无缝连接，经过镀膜后的阵列透镜透过率可以高达98％以上，所以不会损耗光的能量。并且阵列透镜是透过传播，所以可以改变其里面的透镜单元的焦距，使与反光杯的第二个焦点重合，所以不会增加系统的物理长度。
附图说明
图1是光路原理结构示意图。
图2是阵列透镜模型结构示意图。
图3是图2中P-P截面示意图。
图4是图2中G的局部放大示意图。
图5是第一光学组件在光路中的位置示意图。
图6是无阵列透镜时的光强模拟图。
图7是有阵列透镜时的光强模拟图。
图8是灯具光斑照度&光斑直径曲线图，其中曲线A为未经过阵列透镜前光斑分布图，曲线B为经过阵列透镜后的光斑分布图。
图9是本发明实施例2的结构原理图。
具体实施方式
附图仅用于示例性说明，不能理解为对本专利的限制；为了更好说明本实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对于本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。附图中描述位置关系仅用于示例性说明，不能理解为对本专利的限制。
实施例1
如图1所示，一种改善光斑均匀性的舞台灯光学系统，包括沿主光轴依次设置的光源、反光杯1和第二光学组件4，其中，所述舞台灯光学系统还包括设置在反光杯1的第一焦点F1和第二焦点F2之间的第一光学组件2，所述第一光学组件2为单个阵列透镜。
如图2-4所示，阵列透镜的结构是以玻璃为衬底，在玻璃平面上布满透镜单元，透镜单元为凸透镜单元，透镜单元的纵向截面为正多边形，优选为正六边形 或者方形，透镜单元镜面曲率相同或者不同，且每一个透镜单元之间是紧密连接在一起的，相邻透镜单元之间为无缝贴合。阵列透镜能将整个光束分成细光束并重新叠加，使光能量得到有效均匀利用，从而提高光斑的均匀度，经过镀膜后的阵列透镜透过率可以高达98％以上，几乎不损耗光的能量。
本实施例中，所述舞台灯光学系统还包括驱动第一光学组件2移入或移出主光轴的驱动装置，所述驱动装置包括驱动电机和驱动支架，驱动电机的输出轴与驱动支架的一端连接，第一光学组件安装在驱动支架的另一端，驱动电机转动带动驱动支架在垂直于主光轴的平面上摆动，以此来实现第一光学组件2移入或移出主光轴。
如图1所示，进一步的，所述光源的发光点设置在反光杯1的第一焦点F1处，光源发出的光经反光杯1椭球面反射后的光线汇聚于反光杯的第二焦点F2处。所述反光杯1的第二焦点F2处或反光杯的第二焦点F2附近设置有效果组件3，所述效果组件3可以是效果盘。
如图1所示，进一步的，所述第二光学组件4为出光镜头组，包括沿出光方向依次设置的调焦镜头组41、放大镜头组42和固定镜头组43。
如图5所示，本实施例中，所述第一光学组件2移入主光轴后，所述第一光学组件2到反光杯的第二焦点F2处光束横截面的距离h＝cf，其中，c表示一个参数变量，0＜c＜1；f表示反光杯1底端到第二焦点F2的距离。
光斑效果影响分析，定义参数如下：
光强系数：Q＝Ei/Em
均匀度系数：E＝SE/S
Ei表示光斑某点的光强；Em表示光斑内的峰值光强；S表示第二焦点F2处的光束横截面上光斑的总面积；SE表示光斑内Q≥0.85区域的面积，对Q≥0.85区域定义为均匀光区域，即光斑的均匀部分，在同一光斑内，Q越大表示该处的光强越大；E越大，表示该处光斑内光能分布的均匀性越好。
第二焦点F2处的光束横截面上的光斑面积S和均匀光斑面积SE可表示如下：
S＝(2h*tan(a/2)+W)(2h*tan(b/2)+L)
SE＝(2h*tan(a/2)-W)(2h*tan(b/2)-L)
式中：a和b分别表示阵列透镜阵列中每个透镜单元出射光在X和Y方向 的发散角，L和W分别为阵列透镜在坐标轴X和Y方向的尺寸。
将h＝cf带入上式，得出2个公式：
S＝(2cf*tan(a/2)+W)(2cf*tan(b/2)+L)
SE＝(2cf*tan(a/2)-W)(2cf*tan(b/2)-L)
由上式二次函数关系，可知随着距离h的增加，光斑整体面积S和均匀部分面积SE都会随之增大，由于阵列透镜的边长L和W是固定不变的，均匀度系数E(SE和S的比值)会随第一光学组件到反光杯第二焦点F2处光束横截面的距离h的增加而增大。
将上述SE和S代入公式E＝SE/S，可以得出参数c的表达式：
Figure PCTCN2016095560-appb-000002
其中，
A＝4(E-1)f2tan(a/2)*tan(b/2)
B＝2f(E+1)*[Ltan(a/2)+Wtan(b/2)]
D＝WL(E-1)
知道阵列透镜的尺寸大小和透镜单元的曲率，再给出均匀度系数E的目标值，那么我们就可以求出参数c，经过推导计算，得出参数变量c的最佳值为0.3～0.4，此时光强照度和均匀性将达到一个均衡的效果。
利用ZEMAX对上述参数的阵列透镜光学系统进行建模和仿真模拟，结果如图6-7所示。当阵列透镜移出光路时，如图6，光斑面积最大峰值为2104.59LUX，在A≥85％时的光强区域面积与光斑面积的比值E仅为40％左右，光通量为3338LM。当阵列透镜移进光路时，如图7，光斑面积最大峰值为1543.07时，在A≥85％时的光强区域面积与光斑面积的比值E大约是95％以上，光通量为3298LM。由此可知均匀度得到大幅度提高，且从前后的光通量可看出光损只有1.2％左右。
本实施例中，对于灯具的光斑效果来说，当第一光学组件2移出系统主光轴时，光源经过反光杯1发出汇聚的光，通过效果组件3，再经过第二光学组件4后，形成的是中间光束非常汇聚的光束效果；当第一光学组件2移入主光轴时，经过阵列透镜的光将重新积分汇聚到反光杯的第二焦点F2上，其通过效果组件3，再经过第二光学组件4后，将形成均匀的光斑效果。
图8所示为有第一光学组件2和没有第一光学组件2的舞台灯具光斑照度随光斑直径的变化曲线，由图可以看出，当没有第一光学组件2时，光斑照度随光斑直径的变化非常明显，靠近光斑中心点的附近的光斑照度和靠近光斑边缘点的光斑照度有着巨大的差异，中心点附近的光斑照度极强，因此灯具会有明显的光束感；当有第一光学组件2时，光斑照度随光斑直径的变化很平缓，光斑整体比较均匀，因此灯具会有均匀光斑效果。
实施例2
本实施例在实施例1的基础上对第一光学组件进行了改进，其余结构与实施例1相同。
如图9所示，本实施例所述第一光学组件为阵列透镜和透镜的组合，具体来说，包括沿主光轴依次设置的第一凸透镜51、第一阵列透镜21、第二阵列透镜22和第二凸透镜52。
同理，所述第一光学组件也可以是阵列透镜和阵列透镜的组合，即由若干个沿主光轴依次设置的阵列透镜组成。
显然，本发明的上述实施例仅仅是为了清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种改善光斑均匀性的舞台灯光学系统，包括沿主光轴依次设置的光源、和反光杯(1)，其特征在于，所述舞台灯光学系统还包括设置在反光杯(1)的第一焦点F1和第二焦点F2之间的第一光学组件(2)，所述第一光学组件(2)为单个阵列透镜或阵列透镜与透镜的组合或阵列透镜与阵列透镜的组合。
  2. 根据权利要求1L所述的舞台灯光学系统，L其特征在于，所述舞台灯光学系统还包括驱动第一光学组件(2)移入或移出主光轴的驱动装置。
  3. 根据权利要求2所述的舞台灯光学系统，其特征在于，所述驱动装置包括驱动电机和驱动支架，驱动电机的输出轴与驱动支架的一端连接，第一光学组件(2)安装在驱动支架的另一端，驱动电机转动带动驱动支架在垂直于主光轴的平面上摆动。
  4. 根据权利要求1所述的舞台灯光学系统，其特征在于，所述阵列透镜由若干紧密排布的透镜单元组成，透镜单元为凸透镜单元或凹透镜单元。
  5. 根据权利要求4所述的舞台灯光学系统，其特征在于，所述透镜单元的纵向截面呈正多边形。
  6. 根据权利要求5所述的舞台灯光学系统，其特征在于，所述透镜单元的纵向截面为正六边形或方形。
  7. 根据权利要求1至6任一所述的舞台灯光学系统，其特征在于，所述第一光学组件(2)到反光杯(1)第二焦点F2处光束横截面的距离h＝cf，其中，c表示一个参数变量，0＜c＜1；f表示反光杯(1)底端到第二焦点F2的距离。
  8. 根据权利要求7所述的舞台灯光学系统，其特征在于，所述参数变量c为0.3～0.4。
  9. 根据权利要求1至6任一所述的舞台灯光学系统，其特征在于，所述反光杯(1)的第二焦点F2处设置有效果组件(3)。
  10. 根据权利要求1至6任一所述的舞台灯光学系统，其特征在于，所述舞台灯光学系统还包括第二光学组件(4)，所述第二光学组件(4)包括沿出光方向依次设置的调焦镜头组(41)、放大镜头组(42)和固定镜头组(43)。
PCT/CN2016/095560 2015-08-19 2016-08-16 一种改善光斑均匀性的舞台灯光学系统 WO2017028780A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510512130.8 2015-08-19
CN201510512130.8A CN105090830A (zh) 2015-08-19 2015-08-19 一种改善光斑均匀性的舞台灯光学系统

Publications (1)

Publication Number Publication Date
WO2017028780A1 true WO2017028780A1 (zh) 2017-02-23

Family

ID=54571847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/095560 WO2017028780A1 (zh) 2015-08-19 2016-08-16 一种改善光斑均匀性的舞台灯光学系统

Country Status (2)

Country Link
CN (1) CN105090830A (zh)
WO (1) WO2017028780A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108361637A (zh) * 2018-04-02 2018-08-03 福建工程学院 兼具照明与集光的同体双向模组及灯具
CN110805879A (zh) * 2019-11-28 2020-02-18 广州鸿彩舞台设备有限公司 自动调焦装置及舞台图案灯
CN111947076A (zh) * 2020-09-03 2020-11-17 广东优尼克智能照明科技有限公司 一种出星点光斑效果的模块灯组
CN112162412A (zh) * 2020-08-27 2021-01-01 西安炬光科技股份有限公司 一种光学模组及激光模组

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090830A (zh) * 2015-08-19 2015-11-25 广州市浩洋电子有限公司 一种改善光斑均匀性的舞台灯光学系统
CN205350946U (zh) * 2015-12-16 2016-06-29 深圳市绎立锐光科技开发有限公司 一种光源系统及照明系统
CN106871066A (zh) * 2017-02-21 2017-06-20 黄建芳 一种用于实时改变光分布的舞台灯光学系统
CN108758539A (zh) * 2018-07-16 2018-11-06 广州市明道灯光科技股份有限公司 便于布光的高光效舞台灯光路系统及布光方法
DE102020126491B4 (de) * 2020-10-09 2022-04-21 HELLA GmbH & Co. KGaA Scheinwerfersystem für Fahrzeuge

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201009403A (en) * 2008-08-21 2010-03-01 All Real Technology Co Ltd Artificial light source generator
CN101988631A (zh) * 2009-07-31 2011-03-23 深圳市光峰光电技术有限公司 Led舞台灯光照明设备及其改善颜色均匀性的方法
CN102705783A (zh) * 2012-03-23 2012-10-03 上海理工大学 一种改善led光源照度均匀性的系统
CN102818221A (zh) * 2012-09-13 2012-12-12 广州市浩洋电子有限公司 一种用于舞台灯具的光学系统
CN202852695U (zh) * 2012-09-13 2013-04-03 广州市浩洋电子有限公司 用于舞台灯具的光学系统
CN104676489A (zh) * 2013-11-29 2015-06-03 海洋王（东莞）照明科技有限公司 一种景观照明灯反射器及景观照明灯具
CN105090830A (zh) * 2015-08-19 2015-11-25 广州市浩洋电子有限公司 一种改善光斑均匀性的舞台灯光学系统
CN204943187U (zh) * 2015-08-19 2016-01-06 广州市浩洋电子有限公司 一种改善光斑均匀性的舞台灯光学系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2211089A1 (en) * 2009-01-26 2010-07-28 GLP German Light Products GmbH Apparatus and method for outputting a mixed-colored light beam
CN201487677U (zh) * 2009-08-21 2010-05-26 上海微电子装备有限公司 照明系统
CN203202671U (zh) * 2012-12-19 2013-09-18 深圳市光峰光电技术有限公司 一种发光装置及灯具
CN103807692B (zh) * 2014-03-12 2016-04-13 广州市浩洋电子有限公司 一种图案与光束效果相互切换的舞台灯光学系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201009403A (en) * 2008-08-21 2010-03-01 All Real Technology Co Ltd Artificial light source generator
CN101988631A (zh) * 2009-07-31 2011-03-23 深圳市光峰光电技术有限公司 Led舞台灯光照明设备及其改善颜色均匀性的方法
CN102705783A (zh) * 2012-03-23 2012-10-03 上海理工大学 一种改善led光源照度均匀性的系统
CN102818221A (zh) * 2012-09-13 2012-12-12 广州市浩洋电子有限公司 一种用于舞台灯具的光学系统
CN202852695U (zh) * 2012-09-13 2013-04-03 广州市浩洋电子有限公司 用于舞台灯具的光学系统
CN104676489A (zh) * 2013-11-29 2015-06-03 海洋王（东莞）照明科技有限公司 一种景观照明灯反射器及景观照明灯具
CN105090830A (zh) * 2015-08-19 2015-11-25 广州市浩洋电子有限公司 一种改善光斑均匀性的舞台灯光学系统
CN204943187U (zh) * 2015-08-19 2016-01-06 广州市浩洋电子有限公司 一种改善光斑均匀性的舞台灯光学系统

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108361637A (zh) * 2018-04-02 2018-08-03 福建工程学院 兼具照明与集光的同体双向模组及灯具
CN108361637B (zh) * 2018-04-02 2023-06-09 福建工程学院 兼具照明与集光的同体双向模组及灯具
CN110805879A (zh) * 2019-11-28 2020-02-18 广州鸿彩舞台设备有限公司 自动调焦装置及舞台图案灯
CN112162412A (zh) * 2020-08-27 2021-01-01 西安炬光科技股份有限公司 一种光学模组及激光模组
CN111947076A (zh) * 2020-09-03 2020-11-17 广东优尼克智能照明科技有限公司 一种出星点光斑效果的模块灯组

Also Published As

Publication number Publication date
CN105090830A (zh) 2015-11-25

Similar Documents

Publication Publication Date Title
WO2017028780A1 (zh) 一种改善光斑均匀性的舞台灯光学系统
US10689655B2 (en) Off-axis collimation optics
JP5657679B2 (ja) 非対称光ビーム生成のためのレンズ
US8337054B2 (en) Lighting device having a rectangular illuminance pattern
JP2008288215A (ja) フレネルレンズライト用、特にスポットライトあるいはフラッドライト用光学系
JP6054182B2 (ja) 照明装置
CN104819433B (zh) 椭圆光斑实现装置、光斑调节装置及手术灯
CN108826229A (zh) 一种调焦灯透镜组及对应的照明系统
CN203363832U (zh) 一种同时包含多种光束效果的舞台灯具系统
WO2021121318A1 (zh) 一种光学扩束镜和灯具
CN109099391B (zh) 一种出光系统
CN204943187U (zh) 一种改善光斑均匀性的舞台灯光学系统
JP6212293B2 (ja) Ｌｅｄ滑走路照明組立体及び専用光学装置
CN104595811B (zh) 变焦投射灯
JP2012527072A (ja) 反射器アセンブリおよびビーム形成
JP2018507119A (ja) 自動車の運転時にドライバーをサポートする又は自動車を自律的に運転するための装置
CN203703824U (zh) 一种全反射型的led路灯透镜
CN103376632A (zh) 投影机光源结构
JP2011049001A (ja) 照明装置
TWI270628B (en) Illumination device and assembly structure thereof
CN113251384A (zh) 光准直组件和发光装置
KR20210043071A (ko) 차량용 램프
CN106871001B (zh) 一种光束灯装置
WO2021107007A1 (ja) 光源装置及び光源システム
JP6499908B2 (ja) 照射範囲設定用光学素子、及び、照明装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16836644

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16836644

Country of ref document: EP

Kind code of ref document: A1