WO2017092665A1 - 一种照明装置 - Google Patents

一种照明装置 Download PDF

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Publication number
WO2017092665A1
WO2017092665A1 PCT/CN2016/107942 CN2016107942W WO2017092665A1 WO 2017092665 A1 WO2017092665 A1 WO 2017092665A1 CN 2016107942 W CN2016107942 W CN 2016107942W WO 2017092665 A1 WO2017092665 A1 WO 2017092665A1
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WO
WIPO (PCT)
Prior art keywords
light source
filter plate
lens
hole
lighting device
Prior art date
Application number
PCT/CN2016/107942
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English (en)
French (fr)
Inventor
邹思源
张权
李屹
Original Assignee
深圳市光峰光电技术有限公司
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Publication date
Application filed by 深圳市光峰光电技术有限公司 filed Critical 深圳市光峰光电技术有限公司
Priority to US15/779,818 priority Critical patent/US10746357B2/en
Priority to EP16869975.9A priority patent/EP3385600B1/en
Publication of WO2017092665A1 publication Critical patent/WO2017092665A1/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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • 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
    • F21Y2105/00—Planar light sources
    • 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
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the utility model relates to the field of optical technology, and more particularly to a lighting device.
  • the existing illumination system includes a multi-color light source 101, a fly-eye lens 102, and a Fresnel lens 103.
  • the multi-color light source 101 includes a plurality of color LED light sources
  • the fly-eye lens 102 is used to atomize the diffusion spot
  • the Fresnel lens 103 functions to assist astigmatism and concentrating.
  • the multi-color light source 101 is packaged by an LED chip that emits light of a plurality of colors, such as a red light emitting LED chip, a green light emitting LED chip, and a blue light emitting LED chip, the multicolor light source 101 is emitted. Uneven stray light such as red under green may appear around the spot, resulting in poor lighting effect of the illumination system.
  • the present invention provides a lighting device to solve the problem that the light emitting effect of the lighting device is poor due to uneven spot in the prior art.
  • the present invention provides the following technical solutions:
  • a lighting device comprising a multi-color light source emitting a plurality of colors of light, a filter plate and a lens optical element;
  • the filter plate and the lens optical element are sequentially disposed on the optical path of the polychromatic light source;
  • the filter plate is provided with a through hole, wherein the through hole is smaller than a spot of the polychromatic light source reaching the through hole;
  • the optical element is used to adjust the spot.
  • the illumination device further comprises a Fresnel lens, the Fresnel lens is located on a side of the optical element facing away from the polychromatic light source, by adjusting the position of the Fresnel lens and the optical element The relationship adjusts the size of the spot of the illumination device.
  • the shape of the through hole corresponds to the shape of the spot
  • the shape of the through hole is a circle or a regular polygon.
  • the optical element is located at a focus of the multi-color source.
  • the optical element comprises a lens.
  • the lens is located between the filter plate and the Fresnel lens;
  • the lens is located between the filter plate and the polychromatic light source.
  • the optical element comprises a plurality of lenses.
  • the plurality of lenses are located between the filter plate and the Fresnel lens;
  • the plurality of lenses are located between the polychromatic light source and the filter plate;
  • a partial lens is located between the polychromatic light source and the filter plate, and other lenses are located between the filter plate and the Fresnel lens.
  • the illumination device further comprises a fly-eye lens.
  • the fly-eye lens is located between the multi-color light source and the filter plate; or the fly-eye lens is located between the filter plate and the Fresnel lens.
  • the illumination device provided by the utility model is provided with a filter plate having a through hole on the optical path of the multi-color light source. Since the size of the through hole is smaller than the size of the spot of the multi-color light source reaching the through hole, the filter plate can block the surrounding of the spot. The stray light causes a relatively uniform portion of the spot to pass through the through hole, thereby improving the light-emitting effect of the illumination device.
  • FIG. 1 is a schematic structural view of a conventional lighting device
  • FIG. 2 is a schematic structural view of a lighting device according to an embodiment of the present invention.
  • FIG. 3 is a schematic plan view of a filter plate according to an embodiment of the present invention.
  • FIG. 4 is a schematic plan view of another filter plate according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a lighting device according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a lighting device according to still another embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a lighting device provided by the embodiment.
  • the multi-color light source 1 comprises a light source module and a light collecting element.
  • the light source module is packaged with LED light sources of multiple colors, and the LED light sources of different colors emit light of different colors, and the light of different colors emitted by the LED light sources can synthesize white light for illumination.
  • the light source module has a red LED light source, a green LED light source, and a blue LED light source, and the red light, green light, and blue light emitted by the three LED light sources can be combined into white light for illumination.
  • the present invention is not limited to this.
  • the light source module may further include a blue LED light source and a yellow LED light source.
  • the light-receiving component is located on the light-emitting surface of the light source module, and is configured to converge the light emitted by the light source module, so that the light emitted from the LED light source on the light source module in various directions is concentrated to the focus point of the multi-color light source 1.
  • the light collecting element is a collecting lens or the like.
  • the filter plate 2 is provided with a through hole which is smaller than the size of the spot of the multi-color light source 1 reaching the through hole.
  • the filter 2 includes a through hole 20 of a predetermined shape and an opaque region 21 located around the through hole 20.
  • the through hole 20 is for transmitting light, and the opaque region 21 reflects or absorbs light to block stray light around the spot through the opaque region 21, thereby improving the uniformity of the light beam transmitted by the through hole 20.
  • the multi-color light source 1 is composed of LED light sources of various colors, uneven stray light such as red, green, and the like may appear on the periphery of the spot. If the light is not removed, the light-emitting effect of the illumination device may be generated. A large influence, therefore, in this embodiment, the portion of stray light is blocked by the filter 2 having a through hole.
  • the preset shape of the through hole 20 is the same as or similar to the shape of the spot.
  • the size of the through hole 20 should be slightly smaller than the size of the spot.
  • the preset shape of the through hole 20 may be a regular polygon, a regular hexagon as shown in FIG. 3, or a circular shape, as shown in FIG. Further, the preset shape has a diameter ranging from 30 mm to 32 mm.
  • the optical element includes at least one lens 3 for adjusting the spot to improve the uniformity of the spot. Since the multi-color light source 1 is imaged at the focus point, and the lens 3 can change the light exit angle of the light beam, that is, it can perform a certain light-receiving effect, and therefore, the lens 3 can make the minimum light spot of the light beam finally emitted by the illumination device become larger than before. The smaller, larger spot becomes larger than before.
  • the lens 3 is located at the focus of the multi-color source 1.
  • the lens 3 located at the focus point can not only achieve the uniform light but also change the focus point position and the light exit angle of the Fresnel lens 4.
  • the focus point position of the Fresnel lens 4 can be changed by the lens 3, so that the focus point of the light beam emitted from the Fresnel lens 4 is away from the multi-color light source 1.
  • the light source module and the focus point of the multi-color light source 1 make the light output of the illumination device achieve the best effect.
  • the illumination device may include a lens 3, which may be disposed between the multi-color light source 1 and the filter plate 2, or may be disposed on the filter plate 2 and the Fresnel Between the lenses 4 .
  • the illumination device may include a plurality of lenses disposed between the multi-color light source 1 and the filter plate 2, or may be disposed on the filter plate 2 and the Fresnel. Between the lenses 4, a part of the lens may be disposed between the multi-color light source 1 and the filter 2, and other field mirrors may be disposed between the filter 2 and the Fresnel lens 4.
  • the spot size of the light emitted from the illumination device can be adjusted by adjusting the positional relationship of the plurality of field lenses.
  • the illumination device further includes a Fresnel lens 4, which is located on the optical path of the polychromatic light source 1 and located away from the optical element, that is, the lens 3.
  • a Fresnel lens 4 is used to converge the light beam emitted from the lens 3 and emit the concentrated light beam.
  • the spot of the illumination device can be adjusted by moving the Fresnel lens 4, that is, adjusting the positional relationship between the Fresnel lens 4 and the lens 3.
  • the illumination device may further include a fly-eye lens 5, which may be disposed between the multi-color light source 1 and the filter plate 2, of course, in the present invention.
  • the fly-eye lens 5 may be disposed between the filter 2 and the Fresnel lens 4 to improve the uniformity of the illumination device and the illumination brightness by the fly-eye lens.
  • a filter plate having a through hole is disposed on the optical path of the multi-color light source. Since the size of the through hole is smaller than the size of the spot of the multi-color light source reaching the through hole, the filter plate can block the surrounding of the spot. The stray light causes a relatively uniform portion of the spot to pass through the through hole, thereby improving the light-emitting effect of the illumination device.

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

Abstract

一种照明装置，包括发射多种颜色光的多色光源(1)、滤光板(2)及光学元件(3)；滤光板(2)和光学元件(3)依次设置在多色光源(1)的光路上；滤光板(2)上设置有通孔(20)，通孔(20)小于多色光源(1)到达通孔(20)的光斑的大小；光学元件(3)用于调整光斑。由于通孔(20)的大小小于多色光源(1)到达通孔(20)的光斑的大小，因此，滤光板(2)可以挡住光斑周围的杂光，使得光斑中较均匀的部分透过通孔，从而提高了照明装置的出光效果。

Description

一种照明装置 技术领域
本实用新型涉及光学技术领域，更具体地说，涉及一种照明装置。
 背景技术
如图1所示，现有的照明系统包括：多色光源101、复眼透镜102和菲涅尔透镜103。其中，多色光源101包括多个颜色的LED光源，复眼透镜102用于雾化扩散光斑，菲涅尔透镜103起到辅助散光和聚光的作用。
 技术问题
但是，由于多色光源101是由发射多种颜色光的LED芯片封装而成的，如发射红光的LED芯片、发射绿光的LED芯片和发射蓝光的LED芯片，因此，多色光源101出射的光斑周围会出现上红下绿等不均匀的杂光，导致照明系统的出光效果较差。
 技术解决方案
有鉴于此，本实用新型提供了一种照明装置，以解决现有技术中由于光斑不均匀而导致的照明装置出光效果较差的问题。
为实现上述目的，本实用新型提供如下技术方案：
一种照明装置，包括发射多种颜色光的多色光源、滤光板及透镜光学元件；
所述滤光板和透镜光学元件依次设置在所述多色光源的光路上；
所述滤光板上设置有通孔，所述通孔小于所述多色光源到达所述通孔的光斑；
所述光学元件用于调整所述光斑。
优选的，所述照明装置还包括菲涅尔透镜，所述菲涅尔透镜位于所述光学元件背离所述多色光源的一侧，通过调整所述菲涅尔透镜与所述光学元件的位置关系调整所述照明装置的光斑的大小。
优选的，所述通孔的形状与所述光斑的形状对应；
所述通孔的形状为圆形或正多边形。
优选的，所述光学元件位于所述多色光源的聚焦点处。
优选的，所述光学元件包括一个透镜。
优选的，所述透镜位于所述滤光板和所述菲涅尔透镜之间；
或，所述透镜位于所述滤光板和所述多色光源之间。
优选的，所述光学元件包括多个透镜。
优选的，所述多个透镜位于所述滤光板和所述菲涅尔透镜之间；
或者，所述多个透镜位于所述多色光源和所述滤光板之间；
或者，部分透镜位于所述多色光源和所述滤光板之间，其他透镜位于所述滤光板和所述菲涅尔透镜之间。
优选的，所述照明装置还包括复眼透镜。
优选的，所述复眼透镜位于所述多色光源和所述滤光板之间；或者，所述复眼透镜位于所述滤光板和菲涅尔透镜之间。
 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照明装置，在多色光源的光路上设置了具有通孔的滤光板，由于通孔的大小小于多色光源到达通孔的光斑的大小，因此，滤光板可以挡住光斑周围的杂光，使得光斑中较均匀的部分透过通孔，从而提高了照明装置的出光效果。
 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为现有的一种照明装置的结构示意图；
图2为本实用新型的一个实施例提供的一种照明装置的结构示意图；
图3为本实用新型的一个实施例提供的一种滤光板的平面示意图；
图4为本实用新型的一个实施例提供的另一种滤光板的平面示意图；
图5为本实用新型的另一个实施例提供的一种照明装置的结构示意图；
图6为本实用新型的又一个实施例提供的一种照明装置的结构示意图。
 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。
本实用新型的一个实施例提供了一种照明装置，该照明装置可以为聚光灯、舞台灯等，如图2所示，图2为本实施例提供的照明装置的结构示意图，该照明装置包括多色光源1、滤光板2和菲涅尔透镜3。
其中，多色光源1包括光源模组和收光元件。
光源模组封装有多个颜色的LED光源，不同颜色的LED光源发射不同颜色的光，且这些LED光源出射的不同颜色的光能够合成照明用的白光。例如，光源模组具有红色的LED光源、绿色的LED光源和蓝色的LED光源，这三种LED光源出射的红光、绿光和蓝光可合成照明用的白光。当然本实用新型并不仅限于此，在其他实施例中，光源模组还可以包括蓝色的LED光源和黄色的LED光源等。
收光元件位于光源模组的出光面，用于对光源模组出射的光线进行会聚，以使光源模组上的LED光源向各个方向出射的光线会聚到多色光源1的聚焦点处。可选的，收光元件为聚光透镜等。
本实施例中，滤光板2上设置有通孔，该通孔小于多色光源1到达通孔的光斑的大小。参考图3，滤光板2包括预设形状的通孔20和位于通孔20四周的不透光区域21。其中，通孔20用于透射光线，不透光区域21反射或吸收光线，以通过不透光区域21挡住光斑周边的杂散光，提高通孔20透射的光束的均匀性。由于多色光源1是由多种颜色的LED光源组成的，其光斑的周边会出现上红下绿等不均匀的杂散光，若不去除这部分光，就会对照明装置的出光效果产生很大的影响，因此，本实施例中通过具有通孔的滤光板2挡住这部分杂散光。
进一步需要说明的是，通孔20的预设形状与光斑形状相同或相似，为了减小光损失，通孔20的大小应略小于光斑的大小。可选的，通孔20的预设形状可以为正多边形，如图3所示的正六边形，也可以为圆形，如图4所示。进一步地，该预设形状的直径范围为30mm~32mm。
本实施例中，光学元件包括至少一个透镜3，该透镜用于调整光斑，提高光斑的均匀性。由于多色光源1在聚焦点处成像，而透镜3能够改变光束的出光角度，即能够起到一定的收光作用，因此，透镜3能够使得照明装置最终出射的光束的最小光斑变得比之前更小、最大光斑变得比之前更加大。
并且，透镜3距离多色光源1的聚焦点越近，匀光效果越好，同时角度范围也会越大。优选的，透镜3位于多色光源1的聚焦点处。其中，位于聚焦点处的透镜3不仅能够实现匀光，还能够改变菲涅尔透镜4的聚焦点位置以及出光角度。当菲涅尔透镜4和多色光源1的距离较近时，可以通过透镜3改变菲涅尔透镜4的聚焦点位置，让菲涅尔透镜4出射的光束的聚焦点远离多色光源1的光源模组、接近多色光源1的聚焦点，使得照明装置的出光达到最佳效果。
进一步需要说明的是，本实用新型任一实施例中，照明装置可以包括一个透镜3，该透镜3可以设置于多色光源1和滤光板2之间，也可以设置于滤光板2和菲涅尔透镜4之间。当然，本实用新型并不仅限于此，在另一实施例中，照明装置可以包括多个透镜，这些透镜设置于多色光源1和滤光板2之间，也可以设置于滤光板2和菲涅尔透镜4之间，还可以将部分透镜设置于多色光源1和滤光板2之间、其他场镜设置于滤光板2和菲涅尔透镜4之间。此时，在多色光源1和菲涅尔透镜4之间的距离不变时，可通过调整多个场镜的位置关系来调整所述照明装置出射的光线的光斑大小。
当然，在本实用新型的另一实施例中，如图5所示，照明装置还包括菲涅尔透镜4，菲涅尔透镜4位于多色光源1的光路上且位于光学元件即透镜3背离多色光源1的一侧。该菲涅尔透镜4用于对透镜3出射的光束进行会聚，并出射会聚后的光束。本实施例中，可通过移动菲涅尔透镜4，即调整菲涅尔透镜4与透镜3的位置关系来调整照明装置的光斑。
在本实用新型的又一实施例中，如图6所示，照明装置还可包括复眼透镜5，该复眼透镜5可设置于多色光源1和滤光板2之间，当然在本实用新型的另一实施例中，复眼透镜5可设置于滤光板2和菲涅尔透镜4之间，以通过复眼透镜提高照明装置的均匀性和照明亮度。
本实施例提供的照明装置，在多色光源的光路上设置了具有通孔的滤光板，由于通孔的大小小于多色光源到达通孔的光斑的大小，因此，滤光板可以挡住光斑周围的杂光，使得光斑中较均匀的部分透过通孔，从而提高了照明装置的出光效果。
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、一种照明装置，其特征在于，包括发射多种颜色光的多色光源、滤光板及光学元件；
所述滤光板和光学元件依次设置在所述多色光源的光路上；
所述滤光板上设置有通孔，所述通孔小于所述多色光源到达所述通孔的光斑；
所述光学元件用于调整所述光斑。
2、根据权利要求1所述的照明装置，其特征在于，所述照明装置还包括菲涅尔透镜，所述菲涅尔透镜位于所述光学元件背离所述多色光源的一侧，通过调整所述菲涅尔透镜与所述光学元件的位置关系调整所述照明装置的光斑的大小。
3、根据权利要求1所述的照明装置，其特征在于，所述通孔的形状与所述光斑的形状对应；
所述通孔的形状为圆形或正多边形。
4、根据权利要求2所述的照明装置，其特征在于，所述光学元件位于所述多色光源的聚焦点处。
5、根据权利要求4所述的照明装置，其特征在于，所述光学元件包括一个透镜。
6、根据权利要求5所述的照明装置，其特征在于，所述透镜位于所述滤光板和所述菲涅尔透镜之间；
或，所述透镜位于所述滤光板和所述多色光源之间。
7、根据权利要求4所述的照明装置，其特征在于，所述光学元件包括多个透镜。
8、根据权利要求7所述的照明装置，其特征在于，所述多个透镜位于所述滤光板和所述菲涅尔透镜之间；
或者，所述多个透镜位于所述多色光源和所述滤光板之间；
或者，部分透镜位于所述多色光源和所述滤光板之间，其他透镜位于所述滤光板和所述菲涅尔透镜之间。
9、根据权利要求6或8所述的照明装置，其特征在于，所述照明装置还包括复眼透镜。
10、根据权利要求9所述的照明装置，其特征在于，所述复眼透镜位于所述多色光源和所述滤光板之间；
或者，所述复眼透镜位于所述滤光板和菲涅尔透镜之间。
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