WO2019196537A1 - 一种用于舞台灯具的可替换镜头的光学系统 - Google Patents

一种用于舞台灯具的可替换镜头的光学系统 Download PDF

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Publication number
WO2019196537A1
WO2019196537A1 PCT/CN2019/072679 CN2019072679W WO2019196537A1 WO 2019196537 A1 WO2019196537 A1 WO 2019196537A1 CN 2019072679 W CN2019072679 W CN 2019072679W WO 2019196537 A1 WO2019196537 A1 WO 2019196537A1
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Prior art keywords
lens group
lens
optical system
fixed
optical axis
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PCT/CN2019/072679
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English (en)
French (fr)
Inventor
蒋伟楷
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广州市浩洋电子股份有限公司
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Publication of WO2019196537A1 publication Critical patent/WO2019196537A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape

Definitions

  • the present invention relates to the field of stage lamp optical systems, and more particularly to an optical system for a replaceable lens of a stage luminaire.
  • the optical system of the stage lighting is used to project the light-emitting line of the light source. After the design of the optical system is completed, since the lenses in the optical system are not replaceable, the projection angle, the uniformity of the spot, and the degree of softening of the edge of the spot are The optical effects are fixed, which limits the range of applications for stage lighting.
  • the purpose of the present invention is to overcome the deficiencies in the prior art, and provide an optical system for a replaceable lens of a stage luminaire, which has optical effects such as a light projection angle, a spot uniformity, and a degree of softening of the edge of the spot. Changed, extending the range of application of stage lighting.
  • An optical system for an interchangeable lens of a stage luminaire including a light source sequentially disposed along an optical axis, a focus lens group, a magnifying lens group, and a fixed lens group, the focus lens group and the magnifying lens group It is movable in the optical axis direction, and the fixed lens group is replaceably disposed in the optical axis.
  • the fixed lens group is replaceably disposed in the optical axis, so that the lamp can replace different types of fixed lens groups according to actual needs, thereby changing the projection angle, the spot uniformity, and the spot edge softening.
  • Optical effects such as degree, making the luminaire more flexible, multi-effect applications can reduce the number of stage lights and save costs.
  • the fixed lens group to be replaced includes a fixed lens group of different caliber, curvature, type or material.
  • the focusing lens group and the magnifying lens group are axially movable relative to the light source to realize functions such as focusing and amplifying, thereby adjusting the required stage lighting.
  • the fixed lens group is a single lens or a plurality of lens combinations.
  • the single or multiple lens combinations are replaceably disposed on the optical axis, and the lens group may be fixed focus, that is, each lens phase For fixed position, it can also be zoom, that is, the relative position of each lens is variable. According to actual needs, the corresponding fixed lens group is set in the optical axis.
  • the overall replacement of a fixed lens group is not only convenient for the user to operate, but also can avoid the deviation of the lens when the single lens is replaced, so as to affect the light-emitting effect.
  • the fixed lens group is a Fresnel mirror or a spherical lens or an aspheric lens, or a combination of the several lenses.
  • the fixed lens group is fixedly disposed on the optical axis with respect to the light source.
  • the lens barrel supporting the fixed lens group and the lens cover matching the fixed lens group are further included.
  • the lens cover further includes a weight assembly.
  • the weight may be different. In order to keep the replaced lens as heavy as before the replacement, the counterweight is added. In the actual design, the center of gravity of the lamp body is always kept in the lamp arm. The center of the shaft connection to the lamp body.
  • the weight component of the utility model may be a sheet metal added to the fixed lens group, or may be a metal weighting component hidden in the lens cover.
  • it also includes a simple disassembly assembly that operates to replace the fixed lens group.
  • the simple disassembly assembly includes a locking member and a fixing position.
  • the locking member and the fixing position are fixed by screws or snaps.
  • each of the focusing lens group, the magnifying lens group and the fixed lens group are disposed coaxially along the optical axis.
  • the coaxial setting facilitates the smooth transmission of light and reduces the loss of light.
  • a coaxiality adjusting device for adjusting the axial degree between the replaced fixed lens group and the other lens groups is further included.
  • the end face facing the light source after the fixed lens group is replaced is always maintained on the same plane perpendicular to the optical axis.
  • the utility model discloses an optical system for a replaceable lens of a stage lamp.
  • the fixed lens group By disposably disposing the fixed lens group in the optical axis, different types of fixed lens groups are replaced according to actual needs, that is, It can change the optical effects such as the projection angle, the uniformity of the spot, and the softness of the edge of the spot, making the lamp more flexible.
  • the multi-effect application can reduce the number of stage lights and save costs.
  • FIG. 1 is a schematic view of an optical system of an interchangeable lens for a stage luminaire, in which the fixed lens group 3 includes only a lens.
  • FIG. 2 is a schematic view of an optical system of an alternative lens for a stage luminaire, wherein the fixed lens group 3 includes a Fresnel mirror and a lens.
  • FIG. 3 is a schematic view showing the mounting structure of the fixed lens unit 3 of the first embodiment.
  • FIG. 4 is a schematic view showing the mounting structure of the fixed lens unit 3 of the second embodiment.
  • the embodiment provides an optical system for a replaceable lens of a stage luminaire, including a light source arranged along an optical axis, a focus lens group 21, a magnifying lens group 22, and a fixed
  • the lens group 3, the focus lens group 21, and the magnifying lens group 22 are fixedly disposed in the light exiting direction, and the lenses in the fixed lens group 3 are replaceably disposed in the optical axis.
  • the fixed lens group 3 By disposing the fixed lens group 3 in the optical axis, the different types are replaced according to actual needs. By fixing the lens group, you can change the optical effects such as the projection angle, the uniformity of the spot, and the softness of the edge of the spot, and extend the application range of the stage lighting.
  • the fixed lens group 3 is a combination of two lenses, and is disposed in the optical axis according to actual needs.
  • the overall replacement of the entire set of fixed lens groups 3 is not only convenient for the user to operate, but also avoids deviations in the lens mounting when replacing a single lens, so as to affect the light-emitting effect.
  • the fixed lens group 3 is a spherical lens, and the fixed lens group 3 is fixedly disposed on the optical axis with respect to the light source.
  • the lens cover 4 including a weight assembly and a replacement fixed lens group for convenient operation
  • the simple disassembly assembly includes the locking member 5 and the fixing position.
  • the locking member 5 and the fixing position are screws and screw holes, and the simple disassembly assembly is screwed with The screw holes are matched and fixed.
  • the fixed lens group 3 includes two lenses 31.
  • the fixed lens group 3 can also be the following solution:
  • the fixed lens group 3 includes a Fresnel mirror 32 and a lens 31, and the surface of the Fresnel mirror 32 is a light surface facing the light source 1.
  • the light emitted from the fixed lens group 3 can not only ensure the dyeing lamp due to the difference in dispersion and refractive index of the plurality of lenses 31.
  • the projected spot edge is soft, and it can increase the zoom range of the lamp projection and reduce the chromatic aberration of the spot.
  • the Fresnel mirror 32 is located in front of all the lenses along the optical axis direction.
  • the Fresnel mirror 32 is located away from the light exiting surface of the light source 1 to soften the edge of the final projected spot for better dyeing.
  • each of the focus lens group 21, the magnifying lens group 22 and the fixed lens group 3 is disposed coaxially along the optical axis.
  • the coaxial setting facilitates the smooth transmission of light and reduces the loss of light.
  • the coaxiality adjusting device for adjusting the axial degree between the fixed lens group and the other lens group after the replacement, the end face of the fixed lens group facing the light source is always kept on the same plane perpendicular to the optical axis. .
  • FIG. 4 further includes a lens barrel supporting the fixed lens group 3 and a lens cover 4 matching the fixed lens group, the lens cover 4 including a weight assembly and a simple operation for replacing the fixed lens group Disassemble components,
  • the simple disassembly assembly includes a locking member 5 and a fixed position.
  • the locking member 5 and the fixing position are screws and screw holes, and the simple disassembly assembly is matched and fixed by screws and screw holes.

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

Abstract

一种用于舞台灯具的可替换镜头的光学系统,包括沿光轴依次设置的光源(1)、调焦镜头组(21)、放大镜头组(22)及固定镜头组(3),调焦镜头组(21)、放大镜头组(22)可沿光轴方向移动,固定镜头组(3)中的镜片可置换地设于光轴中。通过将固定镜头组(3)可置换地设于光轴中,使得灯具可以根据实际需求置换不同类型的固定镜头组(3),即可改变灯具的投光角度、光斑均匀度、光斑边缘柔化程度等光学效果,使应用更加灵活。

Description

一种用于舞台灯具的可替换镜头的光学系统
技术领域
[0001] 本实用新型涉及舞台灯光学系统技术领域, 更具体地, 涉及一种用于舞台灯具 的可替换镜头的光学系统。
背景技术
[0002] 舞台灯光的光学系统用于将光源所发光线投影出去, 一般光学系统设计完毕后 , 由于光学系统中的各镜片不可置换, 因此其投光角度、 光斑均匀度、 光斑边 缘柔化程度等光学效果已固定不变, 这限制了舞台灯光的应用范围。
技术问题
[0003] 本实用新型的目的在于克服现有技术中的不足, 提供一种用于舞台灯具的可替 换镜头的光学系统, 其投光角度、 光斑均匀度、 光斑边缘柔化程度等光学效果 可变, 扩展了舞台灯光的应用范围。
问题的解决方案
技术解决方案
[0004] 为达到上述目的, 本实用新型采用的技术方案是:
[0005] 提供一种用于舞台灯具的可替换镜头的光学系统, 包括沿光轴依次设置的光源 、 调焦镜头组、 放大镜头组及固定镜头组, 所述调焦镜头组和放大镜头组可沿 光轴方向移动, 所述固定镜头组可置换地设于光轴中。
[0006] 上述方案中, 通过将固定镜头组可置换地设于光轴中, 使得灯具可根据实际需 求置换不同类型的固定镜头组, 即可改变投光角度、 光斑均匀度、 光斑边缘柔 化程度等光学效果, 使灯具使用更加灵活, 多效果的应用可以减少舞台灯的数 量, 节约成本。 所置换的固定镜头组包括口径、 曲率、 类型或材质不同的固定 镜头组。 所述调焦镜头组和放大镜头组相对于光源可轴向移动实现调焦和放大 等功能, 进而调节出所需的舞台灯光。
[0007] 优选地, 所述固定镜头组为单个镜片或多个镜片组合。
[0008] 所述单个或多个镜片组合可置换地设于光轴上, 镜片组可为定焦, 即各镜片相 对位置固定, 也可为变焦, 即各镜片相对位置可变。 根据实际需求选择对应的 固定镜头组设于光轴中, 一组固定镜头组整体置换不但便于使用者操作, 而且 能避免置换单个镜片时该镜片安装有偏差, 以至于影响出光效果。
[0009] 优选地, 所述固定镜头组为菲涅尔镜或球面透镜或非球面透镜, 或所述几种镜 片的组合。
[0010] 优选地, 所述固定镜头组相对光源在光轴上固定设置。
[0011] 优选地, 还包括支撑固定镜头组的镜筒以及与固定镜头组匹配的镜头盖。
[0012] 更进一步优选地, 所述镜头盖还包括配重组件。
[0013] 由于不同的固定镜头组, 其重量可能会不一样, 为保持替换后的镜头与替换前 一样重, 因此加了配重, 在实际设计中, 灯体的重心要求始终保持在灯具手臂 与灯体连接的轴连线中心点上。 本实用新型的配重组件, 可以是固定镜头组上 增加的钣金, 也可以是藏于镜头盖中金属类的增重部件。
[0014] 优选地, 还包括操作替换固定镜头组的简易拆装组件。
[0015] 更进一步优选地, 所述简易拆装组件包括锁紧件和固定位。
[0016] 更进一步优选地, 所述锁紧件和固定位通过螺丝固定或卡扣固定。
[0017] 优选地, 所述调焦镜头组、 放大镜头组与固定镜头组的各镜片沿光轴共轴设置 。 共轴设置便于光的顺利传输, 减少光的损失。
[0018] 优选地, 还包括用于调节置换后的固定镜头组与其他镜头组之间轴度的同轴度 调节装置。
[0019] 优选地, 所述固定镜头组置换后面向光源的端面始终保持在与光轴垂直的同一 平面上。
发明的有益效果
有益效果
[0020] 与现有技术相比, 本实用新型的有益效果是:
[0021] 本实用新型公开了一种用于舞台灯具的可替换镜头的光学系统, 通过将固定镜 头组中可置换地设于光轴中, 从而根据实际需求置换不同类型的固定镜头组, 即可改变投光角度、 光斑均匀度、 光斑边缘柔化程度等光学效果, 使灯具使用 更加灵活, 此外, 多效果的应用可以减少舞台灯的数量, 节约成本。 对附图的简要说明
附图说明
[0022] 图 1为实施例 1一种用于舞台灯具的可替换镜头的光学系统的示意图, 其中固定 镜头组 3只包括透镜。
[0023] 图 2为实施例 2—种用于舞台灯具的可替换镜头的光学系统的示意图, 其中固定 镜头组 3包括菲涅尔镜与透镜。
[0024] 图 3为实施例 1固定镜头组 3的安装结构示意图。
[0025] 图 4为实施例 2固定镜头组 3的安装结构示意图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0026] 下面结合具体实施方式对本实用新型作进一步的说明。 其中, 附图仅用于示例 性说明, 表示的仅是示意图, 而非实物图, 不能理解为对本专利的限制; 为了 更好地说明本实用新型的实施例, 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。
[0027] 本实用新型实施例的附图中相同或相似的标号对应相同或相似的部件; 在本实 用新型的描述中, 需要理解的是, 若有术语“上”、 “下”、 “左”、 “右”等指示的方 位或位置关系为基于附图所示的方位或位置关系, 仅是为了便于描述本实用新 型和简化描述, 而不是指示或暗示所指的装置或元件必须具有特定的方位、 以 特定的方位构造和操作, 因此附图中描述位置关系的用语仅用于示例性说明, 不能理解为对本专利的限制, 对于本领域的普通技术人员而言, 可以根据具体 情况理解上述术语的具体含义。
[0028] 实施例 1
[0029] 如图 1所示, 本实施例提供一种用于舞台灯具的可替换镜头的光学系统, 包括 依沿光轴次设置的光源 1、 调焦镜头组 21、 放大镜头组 22及固定镜头组 3 , 所述 调焦镜头组 21、 放大镜头组 22固定不变地设于出光方向, 所述固定镜头组 3中的 镜片可置换地设于光轴中。
[0030] 通过将固定镜头组 3可置换地设于光轴中, 使得根据实际需求置换不同类型的 固定镜头组, 即可改变投光角度、 光斑均匀度、 光斑边缘柔化程度等光学效果 , 扩展舞台灯光的应用范围。
[0031] 其中, 所述固定镜头组 3为两个镜片组合, 根据实际需求设于光轴中。
[0032] 将整组固定镜头组 3整体置换不但便于使用者操作, 而且能避免置换单个镜片 时该镜片安装有偏差, 以至于影响出光效果。
[0033] 所述固定镜头组 3为球面透镜, 所述固定镜头组 3相对光源在光轴上固定设置。
[0034] 如图 3所示, 其中, 还包括支撑固定镜头组 3的镜筒以及与固定镜头组匹配的镜 头盖 4, 所述镜头盖 4包括配重组件和用于方便操作替换固定镜头组的简易拆装 组件, 所述简易拆装组件包括锁紧件 5和固定位, 本实施例中, 所述锁紧件 5和 固定位为螺丝和螺丝孔, 所述简易拆装组件通过螺丝与螺丝孔匹配固定。
[0035] 如图 1所示, 其中, 所述固定镜头组 3包括包括两片透镜 31。
发明实施例
本发明的实施方式
[0036] 实施例 2
[0037] 当然, 所述固定镜头组 3也可为下述方案:
[0038] 如图 2所示, 所述固定镜头组 3包括一片菲涅尔镜 32及一片透镜 31, 且菲涅尔镜 32为光面的表面面向光源 1。 通过将一片菲涅尔镜 32与一片透镜 31组合起来共同 构成固定镜头组 3 , 由于若干片透镜 31对光的色散及折射率的不同, 使得从固定 镜头组 3发出的光不但能保证染色灯投射的光斑边缘柔和, 而且能增加灯具投光 的变倍范围, 减小光斑的色差变化。
[0039] 本实施例中, 沿光轴方向菲涅尔镜 32位于所有透镜的前方。 菲涅尔镜 32位于远 离光源 1的出光面可使最终投射出来的光斑边缘柔和, 获取更好的染色效果。
[0040] 其中, 调焦镜头组 21、 放大镜头组 22与固定镜头组 3中的各镜片沿光轴共轴设 置。 共轴设置便于光的顺利传输, 减少光的损失。 其中, 还包括用于调节置换 后的固定镜头组与其他镜头组之间轴度的同轴度调节装置, 所述固定镜头组置 换后面向光源的端面始终保持在与光轴垂直的同一平面上。
[0041] 如图 4所示, 还包括支撑固定镜头组 3的镜筒以及与固定镜头组匹配的镜头盖 4 , 所述镜头盖 4包括配重组件和用于方便操作替换固定镜头组的简易拆装组件, 所述简易拆装组件包括锁紧件 5和固定位。 本实施例中, 所述锁紧件 5和固定位 为螺丝和螺丝孔, 所述简易拆装组件通过螺丝与螺丝孔匹配固定。
[0042] 显然, 本实用新型的上述实施例仅仅是为清楚地说明本实用新型所作的举例, 而并非是对本实用新型的实施方式的限定。 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。 凡在本实用新型的精神和原则之内所作的任何 修改、 等同替换和改进等, 均应包含在本实用新型权利要求的保护范围之内。

Claims

权利要求书
[权利要求 1] 一种用于舞台灯具的可替换镜头的光学系统, 包括沿光轴依次设置的 光源 (1) 、 调焦镜头组 (21) 、 放大镜头组 (22) 及固定镜头组 (3 ) , 其特征在于, 所述调焦镜头组 (21) 和放大镜头组 (22) 可沿光 轴方向移动, 所述固定镜头组 (3) 可置换地设于光轴中。
[权利要求 2] 根据权利要求 1所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 所述固定镜头组 (3) 为单个镜片或多个镜片组合。
[权利要求 3] 根据权利要求 2所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 所述固定镜头组 (3) 为菲涅尔镜或球面透镜或非球面 透镜, 或所述几种镜片的组合。
[权利要求 4] 根据权利要求 1所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 所述固定镜头组 (3) 相对光源在光轴上固定设置。
[权利要求 5] 根据权利要求 1所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 还包括支撑固定镜头组 (3) 的镜筒以及与固定镜头组 (3) 匹配的镜头盖。
[权利要求 6] 根据权利要求 5所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 所述镜头盖还包括配重组件。
[权利要求 7] 根据权利要求 1所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 还包括操作替换固定镜头组 (3) 的简易拆装组件。
[权利要求 8] 根据权利要求 7所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 所述简易拆装组件包括锁紧件和固定位。
[权利要求 9] 根据权利要求 1所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 所述调焦镜头组 (21) 、 放大镜头组 (22) 、 固定镜头 组 (23) 的各镜片沿光轴共轴设置。
[权利要求 10] 根据权利要求 1所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 还包括用于调节置换后的固定镜头组 (3) 与其他镜头 组之间轴度的同轴度调节装置。
[权利要求 11] 根据权利要求 1所述的一种用于舞台灯具的可替换镜头的光学系统, 其特征在于, 所述固定镜头组 (3) 置换后面向光源的端面始终保持 在与光轴垂直的同一平面上。
PCT/CN2019/072679 2018-04-09 2019-01-22 一种用于舞台灯具的可替换镜头的光学系统 WO2019196537A1 (zh)

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