WO2021078290A1 - 光源系统 - Google Patents

光源系统 Download PDF

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Publication number
WO2021078290A1
WO2021078290A1 PCT/CN2020/123460 CN2020123460W WO2021078290A1 WO 2021078290 A1 WO2021078290 A1 WO 2021078290A1 CN 2020123460 W CN2020123460 W CN 2020123460W WO 2021078290 A1 WO2021078290 A1 WO 2021078290A1
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WO
WIPO (PCT)
Prior art keywords
light
surface structure
source system
light source
shaping device
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PCT/CN2020/123460
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English (en)
French (fr)
Inventor
张权
胡军楚
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深圳市绎立锐光科技开发有限公司
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Publication of WO2021078290A1 publication Critical patent/WO2021078290A1/zh

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    • 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
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and 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
    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for

Definitions

  • the utility model relates to the field of uniform light, in particular to a light source system.
  • the utility model provides a light source system to solve the problem that the brightness of the center of the light spot is not prominent in the prior art.
  • a technical solution adopted by the present invention is to provide 1.
  • a light source system characterized in that the light source system includes:
  • the light shaping device is arranged on the light path of the outgoing light of the collecting lens.
  • the light shaping device includes a first surface and a second surface opposite to the first surface.
  • the first surface includes a plurality of The first surface structure and the second surface structure that are light-shaped, wherein the first surface structure and the second surface structure have different curvatures;
  • the condensing system is used for collecting and projecting the light beam emitted by the light shaping device on the target plane.
  • the first surface structure is a curved surface structure, so that the light emitted through the first surface structure has different divergence angles.
  • the second surface structure is a planar structure.
  • the second surface structure includes a plurality of sub-regions, wherein a second curved surface structure having a curvature different from that of the first surface structure is provided in the plurality of sub-regions.
  • the first surface includes a plurality of first surface structures arranged at equal intervals.
  • the first surface includes a plurality of first surface structures with different curvatures.
  • the first surface structure is provided with a diffusion film
  • the second surface structure is a planar structure
  • the projection surface of the first surface structure corresponding to the second surface is provided with a diffusion film.
  • the orthographic projection of the first surface structure on the first surface is a circle, a regular polygon, or an irregular polygon.
  • the collecting lens group includes a plurality of first lens devices, and the plurality of first lens devices respectively correspond to the plurality of light-emitting devices one by one.
  • the beneficial effect of the utility model is: different from the prior art, the utility model emits multiple light beams through the light emitting array, and is collected by the collecting lens group, and then incident on the light shaping device, because the light shaping device includes a first surface with different curvatures.
  • the structure and the second surface structure enable the beam to be shaped at different angles, so that when a light spot is formed on the target plane, the center brightness of the light spot is greater than the edge brightness.
  • Fig. 1 is a schematic structural diagram of a first embodiment of a light source system provided by the present invention
  • FIG. 2 is a schematic diagram of a side view structure of a light shaping device provided by the present invention and an embodiment of the light beam entering and exiting;
  • FIG. 3 is a schematic diagram of the light spot formed by the light source system of FIG. 1 incident on the target plane;
  • FIG. 4 is a schematic side view of another embodiment of the light shaping device provided by the present invention.
  • FIG. 5 is a schematic top view of the structure of the light shaping device shown in FIG. 2;
  • FIG. 6 is a schematic side view of another embodiment of the light shaping device provided by the present invention.
  • FIG. 7 is a schematic top view of the structure of the light shaping device shown in FIG. 6;
  • FIG. 8 is a schematic side view of another embodiment of the light shaping device provided by the present invention.
  • FIG. 9 is a schematic structural diagram of the second embodiment of the light source system provided by the present invention.
  • Fig. 10 is a schematic structural diagram of a third embodiment of the light source system provided by the present invention.
  • the utility model provides a light source system, which is characterized in that the light source system includes:
  • the light-shaping device is arranged on the light path of the outgoing light of the collecting lens.
  • the light-shaping device includes a first surface and a second surface opposite to the first surface.
  • the first surface includes a plurality of The first surface structure and the second surface structure that are light-shaped, wherein the first surface structure and the second surface structure have different curvatures;
  • the condensing system is used for collecting and projecting the light beam emitted by the light shaping device on the target plane.
  • the present invention provides a light source system 10, the light source system 10 includes a light-emitting array 100, a collection lens group 200 and a light shaping device 300.
  • the light-emitting array 100 includes a plurality of light-emitting devices 110.
  • the multiple light-emitting devices 110 may be arranged in an array or in a straight line for generating light beams respectively.
  • the light-emitting array 100 can generate multiple light beams.
  • the collection lens group 200 is used to collect the light beams emitted by the light-emitting array 100.
  • the light-emitting device 110 specifically includes an LED chip, or an LED chip plus a fluorescent part.
  • the fluorescent part may include fluorescent powder.
  • the light emitted by the LED chip can pass through the same or different fluorescent parts to emit a single-color light beam. It can emit light beams of different colors, such as three primary color light beams.
  • the light shaping device 300 includes a first surface 311 and a second surface 312 opposite to the first surface 311, wherein the first surface 311 is a light incident surface, and the second surface 312 is a light exit surface;
  • the first surface 311 includes a plurality of first surface structures 320 and second surface structures 330 for shaping incident light, wherein the plurality of first surface structures 320 are arranged at intervals, and the second surface structure 330 is a plurality of first surface structures The interval area between 320.
  • the second surface of the light shaping device that is, the exit surface, is provided with multiple first surface structures and second surface structures.
  • the first surface and the second surface of the light shaping device can also be at the same time.
  • a plurality of first surface structures and second surface structures arranged at intervals are provided.
  • the collection lens group 200 collects the light beams emitted by the light-emitting array 100 and then is incident on the first surface 311 of the light shaping device 300. Part of the light is emitted from the first surface structure 320 of the first surface 311. When incident, a part of the light is incident from the second surface structure 330 of the first surface 311. Since the first surface structure 320 and the second surface structure 330 have different surface structures, the light beams transmitted through the first surface structure 320 and the second surface structure 330 have different angle shaping, thereby realizing the light distribution of the total light beam. modulation.
  • first surface structure 320 and the second surface structure 330 may also be disposed on the second surface 312, and a plurality of the first surface structures 320 are arranged at intervals, and the second surface structure 330 is a plurality of first surfaces. Space area between structures 320. Wherein, the first surface structure 320 and the second surface structure 330 are provided with different surface structures.
  • first surface structure and the second surface structure are different surface structures.
  • the divergence and angle adjustment of the beam are also different, so that the first surface structure and the second surface structure emit light.
  • the spatial overlap of the subsequent beams will be different. The direct result is that in a certain angular space, the beams emitted from the first surface structure 320 and the beams emitted from the second surface structure 330 will overlap, at another angle.
  • the light beam emitted from the first surface structure 320 and the light beam emitted from the second surface structure 330 will not overlap, so that a spot with uneven brightness distribution can be formed on the target plane, and the beams in the corresponding angular space in the middle area overlap The highest rate, so a light spot with the highest brightness in the middle and gradually decreasing brightness from the middle to the surroundings is formed.
  • the first surface structure 320 is provided with a first curved surface structure
  • the second surface structure 330 is a planar structure.
  • the first surface structure 320 is equivalent to a curved lens, that is, each first surface structure 320 corresponds to a curved lens unit, and the lens unit is used to converge the incident light beam so as to make it incident on the first surface structure 320.
  • the beam of light converges and shoots out.
  • the second surface structure 330 is a planar structure, that is, the incident light at this time vertically enters the second surface structure 330 and exits vertically through the light shaping device 300, that is, the light beam emitted from the second surface structure 330 is incident along the time The angle of the beam is emitted, and the angular distribution of the beam has not changed.
  • the plurality of first surface structures are arranged at intervals, that is, there is a certain gap between any one first surface structure and the adjacent first surface structure, and these gaps constitute the second surface structure 330.
  • the light-emitting array 100 emits multiple light beams, which are collimated and emitted after being collected by the collecting lens group.
  • a part of the light beams are incident from the first surface structure 320 of the first surface 311 of the light shaping device 300.
  • the structure 320 has a curved structure surface, and the incident light beam will be converged and emitted to change the divergence angle of the light beam.
  • the light beam L1 in FIG. 2 is incident through the first curved structure of the first surface structure 320 and is converged by the first curved structure. Later, the outgoing beams can be divided into two types.
  • the first type of beam’s exit angle remains unchanged and exits perpendicular to the exit surface, that is, L12; the second type of beam’s exit angle is divergent and exits at a certain angle, that is, L11 and L13.
  • Fig. 2 is a schematic cross-sectional view of the light beam.
  • L11 and L13 are a light beam diverging around the central optical axis of L1.
  • Another part of the light beam is incident from the second surface structure 330 of the light shaping device 300. Since the second surface structure 330 is a planar structure, the plane will not change the angle of the incident light, that is, the light beam will exit at the same angle as the incident angle distribution. , As shown in L2.
  • the middle area not only contains the beam L2 whose angle has not changed, but also contains the beams L11 and L13 after the spread of the beam in the surrounding area. Therefore, the target plane at this time will show a gradually decreasing brightness distribution from the middle to the edge. Light spot. As shown in Figure 3. It can be seen that the farther to the middle, the higher the brightness, because the most central area includes not only the beam whose beam angle has not changed, but also the superposition of other light beams with divergent light distribution in the central region, that is, all beams passing through the first surface structure 320 The diverging beam contributes to the brightness of the most central area.
  • the first surface structures 320 may be arranged at equal intervals on the first surface 311, and the curvatures of the surface structures in the plurality of first surface structures 320 are the same. In other embodiments, as shown in FIG. The surface structure 320 may also be arranged on the first surface 311 at unequal intervals, and the surface structures of the plurality of first surface structures 320 have different curvatures.
  • the brightness distribution of the light spot emitted by the light source system does not gradually decrease from the center of the light spot to the surroundings, but gradually decreases from the non-central area of the light spot to the surroundings.
  • the shape of the light spot emitted by the light source system at this time is not a circular distribution, and different output light distributions can be achieved by controlling the positions of the first surface structures with different curvatures, for example, A light spot with Gaussian distribution is emitted.
  • the first surface structure 320 is a first curved surface structure
  • the second surface structure 330 is a second curved surface structure
  • the curvature of the first surface structure 320 is different from the curvature of the second surface structure 330, so The degree of spread of the beam is also different.
  • the second surface structure 330 can be further divided into a plurality of sub-regions 331, and each sub-region 331 can be provided with a second curved structure 332 having a different curvature from the first surface structure 320, thereby Therefore, the angle change amount of the light beam incident on the second surface structure 330 is different from the angle change amount of the light beam incident on the first surface structure 320.
  • the middle area includes the light beam with less spread and the light beam after the spread of the surrounding area. Therefore, compared to the surrounding area, a light spot with a gradually decreasing brightness distribution from the middle to the edge is formed on the target plane.
  • the different curvatures will affect the angle change of the light beam and the brightness uniformity, so that the effect of higher brightness at the center of the light spot in the foregoing embodiment can also be achieved.
  • the first curved structure or the second curved structure may be a spherical mirror.
  • both the first curved structure and the second curved structure may be spherical mirrors.
  • the orthographic projection of the first surface structure 320 on the first surface 311 is a circle, a regular polygon, or an irregular polygon. That is, the projection of the first curved surface structure on the first surface 311 may be a circle, a regular polygon, or an irregular polygon.
  • the second surface structure 330 has a corresponding shape.
  • the orthographic projection of the first surface structure 320 on the first surface 311 may be circular, so that the first curved structure forms a circular convex mirror, which can adjust the angle of incident light beams in different directions.
  • the material of the light shaping device 300 can be glass or plastic, which has good processability and light penetration.
  • the first surface structure 320 may be provided with a diffusion film, and the second surface structure is flat.
  • a diffusion film may be provided on the light-incident surface or the light-exit surface of the first surface structure 320 to shape the angle of the light beam to diffuse it.
  • the first surface structure 320 may be provided with diffusing particles to diffuse the light beam, while the second surface structure 320 does not do any treatment, so that the light beam emitted from the first surface structure 320 and the light beam emitted from the second surface structure 320 The degree of diffusion is different.
  • the light source system 10 may further include a condenser lens 400 for collecting the light beam emitted from the light shaping device 300 and projecting it onto the target plane.
  • a condenser lens 400 for collecting the light beam emitted from the light shaping device 300 and projecting it onto the target plane.
  • the effect of the light spot transmitted on the target plane can be controlled by controlling the distance between the condenser lens 400 and the light shaping device 300.
  • the size of the light spot and the number of light spots can be adapted to different applications.
  • the collection lens group 200 may include a plurality of first lens devices 210, and the plurality of first lens devices 210 may also be arranged in an array or a linear arrangement, and correspond to the plurality of light emitting devices 110 one by one.
  • each first lens device 210 collects the light beam emitted by the corresponding light-emitting device 110; thereby focusing the light beam emitted by the light-emitting device 110 to prevent excessive diffusion of the light beam emitted by the light-emitting device 110, and incident the collected light beam To the light shaping device 300.
  • the collection lens group 200 may also be a double-layer lens, and further includes a plurality of second lens devices 220, and the plurality of second lens devices 220 respectively correspond to the plurality of first lens devices 210 one by one, which can be specifically set On the side of the first lens device 210 away from the light emitting device 110, the focused light beam of the first lens device 210 is further focused.
  • the diameter of the second lens device 220 is larger than the diameter of the first lens device 210.
  • the present invention emits multiple light beams through the light-emitting array and is collected by the collecting lens group, and then incident on the light shaping device.
  • the light shaping device includes a first surface structure and a second surface structure with different curvatures , So that the beam is shaped at different angles, so that when a spot is formed on the target plane, the center brightness of the spot is greater than the edge brightness. , To adapt to different applications.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
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  • Planar Illumination Modules (AREA)

Abstract

一种光源系统（10），包括：发光阵列（100）；收集透镜（200），用于对发光阵列（100）出射的光束进行收集；光整形装置（300），设置于收集透镜（200）的出射光光路上，光整形装置（300）包括第一面（311）和与第一面（311）相背的第二面（312），第一面（311）包括多个用于对入射光进行整形的第一表面结构（320）和第二表面结构（330），其中第一表面结构（320）和第二表面结构（330）具有不同曲率；聚光系统（400），用于对光整形装置（300）出射的光束收集并投射于目标平面。光整形装置（300）包括曲率不同的第一表面结构与第二表面结构，从而使光束进行不同的角度整形，以使得在目标平面上形成光斑时，光斑的中心亮度大于边缘亮度，以适应不同的应用场合。

Description

光源系统 技术领域
本实用新型涉及匀光领域，特别涉及一种光源系统。
背景技术
目前大功率LED在舞台灯的应用非常广泛，但是现有技术中，对LED芯片发出的光经过双层复眼透镜进行均匀化后，投射到目标平面上的光斑具有很好均匀度，且由于双层复眼透镜的亮度牺牲，易导致光斑的中心亮度不突出，限制了中心亮度要求较高的应用场合的使用。
实用新型内容
本实用新型提供一种光源系统，以解决现有技术中光斑中心亮度不突出的问题。
为解决上述技术问题，本实用新型采用的一个技术方案是：提供1、一种光源系统，其特征在于，所述光源系统包括：
发光阵列；
收集透镜，用于对所述发光阵列出射的光束进行收集；
光整形装置，设置于所述收集透镜的出射光光路上，所述光整形装置包括用于第一面和与第一面相背的第二面，所述第一面包括多个用于对入射光进行整形的第一表面结构和第二表面结构，其中所述第一表面结构和第二表面结构具有不同曲率；
聚光系统，所述聚光系统用于对所述光整形装置出射的光束收集并投射于目标平面。
根据本实用新型提供的一实施方式，所述第一表面结构为曲面结构，以使得经所示第一表面结构出射光具有不同的发散角。
根据本实用新型提供的一实施方式，所述第二表面结构为平面结构。
根据本实用新型提供的一实施方式，所述第二表面结构包括多个子区域，其中所述多个子区域中设置曲率与第一表面结构不同的第二曲面结构。
根据本实用新型提供的一实施方式，所述第一面包括多个等间隔设置的第一表面结构。
根据本实用新型提供的一实施方式，所述第一面包括多个曲率不同的第一表面结构。
根据本实用新型提供的一实施方式，所述第一表面结构设置扩散膜，所述第二表面结构为平面结构。
根据本实用新型提供的一实施方式，所述第一表面结构对应所述第二面的投影表面设置有扩散膜。
根据本实用新型提供的一实施方式，所述第一表面结构在所述第一面上的正投影为圆形、规则多边形或者不规则多边形。
根据本实用新型提供的一实施方式，所述收集透镜组包括多个第一透镜器件，所述多个第一透镜器件分别一一与所述多个发光器件对应。
本实用新型的有益效果是：区别于现有技术，本实用新型通过发光阵列发出多光束，并通过收集透镜组收集后，入射到光整形装置上，由于光整形装置包括曲率不同的第一表面结构与第二表面结构，从而使得光束进行不同的角度整形，以使得在目标平面上形成光斑时，光斑的中心亮度大于边缘亮度。，以适应不同的应用场合。
附图说明
图1是本实用新型提供的光源系统的第一实施例结构示意图；
图2是光束入射与出射本实用新型提供光整形装置及一实施例的侧视结构示意图；
图3是图1光源系统入射到目标平面所形成的光斑示意图；
图4是本实用新型提供光整形装置的另一实施例的侧视结构示意图；
图5是图2所示光整形装置的俯视结构示意图；
图6是本实用新型提供光整形装置的另一实施例的侧视结构示意图；
图7是图6所示光整形装置的俯视结构示意图；
图8是本实用新型提供光整形装置的另一实施例的侧视结构示意图；
图9是本实用新型提供的光源系统的第二实施例结构示意图；
图10是本实用新型提供的光源系统的第三实施例结构示意图。
具体实施方式
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，所描述的实施例仅是本实用新型的一部分实施例，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。
另外，若本实用新型实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本实用新型要求的保护范围之内。
本实用新型提供一种光源系统，其特征在于，所述光源系统包括：
发光阵列；
收集透镜，用于对所述发光阵列出射的光束进行收集；
光整形装置，设置于所述收集透镜的出射光光路上，所述光整形装置包括用于第一面和与第一面相背的第二面，所述第一面包括多个用于度入射光进行整形的第一表面结构和第二表面结构，其中第一表面结构和第二表面结构具有不同曲率；
聚光系统，所述聚光系统用于对所述光整形装置出射的光束收集并投射于目标平面。
请参阅图1-图10，本实用新型提供一种光源系统10，该光源系统10包括有发光阵列100、收集透镜组200以及光整形装置300。
如图1所示，发光阵列100包括多个发光器件110，多个发光器件110 具体可以呈阵列排列，也可以呈直线排列，用于分别产生光束。从而使得发光阵列100能够产生多束光束。收集透镜组200用于对发光阵列100发出的光束进行收集。
具体实施例中，发光器件110具体包括是LED芯片，或LED芯片加荧光部，荧光部可以包括荧光粉，LED芯片发过的光穿过相同或不同荧光部，可以发出单一颜色的光束，也可以发出不同颜色的光束，如三基色光束。
如图2至图5所示，光整形装置300包括第一面311和与第一面311相对的第二面312，其中第一面311为光入射面，第二面312为光出射面；第一面311包括多个用于对入射光进行整形的第一表面结构320和第二表面结构330，其中多个第一表面结构320间隔设置，第二表面结构330为多个第一表面结构320的之间的间隔区域。需要说明的是，在其它实施例中，光整形装置的第二面即出射面设置有多个第一表面结构和第二表面结构，当然光整形装置的第一面和第二面也可以同时设置有多个间隔设置的第一表面结构和第二表面结构。
如图1和图2所示，收集透镜组200对发光阵列100发出的光束进行收集后入射到光整形装置300的第一面311上，其中一部分光从第一面311的第一表面结构320入射，一部分光从第一面311的第二表面结构330入射。由于第一表面结构320与第二表面结构330具有不同的表面结构，使得经第一表面结构320与第二表面结构330透射的光束具有不同的角度整形，从而实现对总光束出射光的光分布调制。
在其他实施例中，第一表面结构320与第二表面结构330也可以设置于第二面312上，且其中多个第一表面结构320间隔设置，第二表面结构330为多个第一表面结构320之间的间隔区域。其中，第一表面结构320设置和第二表面结构330设置有不同表面结构。
下面具体对第一表面结构和第二表面结构为不同表面结构的情况进行说明。
在具体实施例中，由于第一表面结构320与第二表面结构330的曲率有所不同，则对光束的发散性与角度调整也有所不同，因此使得经第一表 面结构和第二表面结构出射后的光束空间重叠度会有不同，直接导致的结果是，在某一个角度空间上，从第一表面结构320出射的光束与从第二表面结构330的出射的光束会重叠，在另外一角度空间上，从第一表面结构320出射的光束与从第二表面结构330出射的光束不会重叠，从而可以在目标平面上形成亮度分布不均匀的光斑，且由于中间区域对应角度空间的光束重叠率最高，因此形成一中间亮度最高，且从中间往四周亮度逐渐降低的光斑。
实施例1中，第一表面结构320设置第一曲面结构，第二表面结构330为平面结构。
如图2，第一表面结构320相当于一曲面透镜，即每个第一表面结构320均对应一个曲面透镜单元，透镜单元用于对入射的光束进行汇聚，从而使得入射到第一表面结构320的光束汇聚出射。
如图2，第二表面结构330为平面结构，即此时的入射光垂直入射第二表面结构330，且经光整形装置300垂直出射，即从第二表面结构330出射的光束沿着入射时的角度进行出射，其光束的角分布未有变化。具体地，多个第一表面结构间隔设置，即任何一个第一表面结构与相邻的第一表面结构之间具有一定间隙，这些间隙构成第二表面结构330。
如图2所示，发光阵列100发射出多条光束，在被收集透镜组收集后准直出射，一部分光束从光整形装置300的第一面311的第一表面结构320入射，由于第一表面结构320具有曲面结构表面，则入射的光束会进行汇聚出射以改变光束的发散角，如图2的光束L1，其经过第一表面结构320的第一曲面结构入射，经第一曲面结构的汇聚后，出射光束可分为二种，第一种光束的出射角度未发生变化，垂直于出射面出射，即L12；第二种光束的出射角度以一定的角度发散出射，即L11和L13，需要说明的是，图2为光束的截面示意的，在一立体示意图中，L11和L13均为绕L1的中心光轴发散的一光束。另一部分光束从光整形装置300的第二表面结构330入射，由于第二表面结构330为平面结构，平面不会改变入射光的角度扩散，即光束会以和入射时的角分布相同的角度出射，如L2所示。此时在一角度空间上，中间区域不仅包含角度未发生变化的光束L2，同时还包含周 围区域光束扩散后的光束L11和L13，因此此时的目标平面会呈现一个中间往边缘亮度分布逐渐降低的光斑。如图3所示。可以看出，越往中间，亮度越高，因为最中心区域不仅包括光束角度未发生变化的光束，而且还包括其它光分布发生发散的光束在中心区域的叠加，即所有经第一表面结构320发生发散的光束对最中心区域的亮度均有贡献。
如图2所示，第一表面结构320可以在第一面311上等间距设置，且多个第一表面结构320中的表面结构曲率相同，在其他实施例中如图4所示，第一表面结构320也可以在第一面311上不等间距设置，且多个第一表面结构320中的表面结构曲率不同。
对于第一表面结构320不等间距设置的实施方式，此时光源系统出射的光斑亮度分布并非是以光斑中心往四周逐渐减小，而是从光斑的非中心区域开始向四周逐渐减小。
对于多个第一表面结构320曲率不同的实施方式，此时光源系统出射的光斑形状并非是圆形分布，其可以通过控制不同曲率第一表面结构的位置来实现不同的出射光分布，例如，出射具有高斯分布的光斑。
实施例2中，其具体的，第一表面结构320为第一曲面结构，第二表面结构330为第二曲面结构，且第一表面结构320的曲率与第二表面结构330的曲率不同，从而对光束的扩散程度也不同。
如图6和图7所示，第二表面结构330可以进一步进行划分，从而分成多个子区域331，每个子区域331中可以分别设置曲率与第一表面结构320不同的第二曲面结构332，从而使得入射至第二表面结构330的光束的角度改变量与入射至第一表面结构320的光束角度改变量有所不同。类似于实施例1中，由于入射至第二表面结构330的光束与入射至第一表面结构320的光束的扩散量。在一角度空间上，中间区域包括有扩散量较少的光束以及包含周围区域光束扩散后的光束，因此相比周围而言，会在目标平面形成一个中间往边缘亮度分布逐渐降低的光斑。
具体地，曲率不同则会影响到光束的角度改变量与亮度均匀性，从而也能实现上述实施例中光斑中心亮度较高的效果。
在一具体实施例中，第一曲面结构或者第二曲面结构可以为球面镜。
在一具体实施例中，第一曲面结构与第二曲面结构均可以为球面镜。
在具体实施例中，第一表面结构320在第一面311上的正投影为圆形、规则多边形或者不规则多边形。即第一曲面结构在第一面311的投影可以为圆形、规则多边形或者不规则多边形。且第二表面结构330为对应的形状。
优选的，第一表面结构320在第一面311上的正投影具体可以为圆形，从而使得第一曲面结构形成一个圆形凸镜，能够对不同方向的入射光束进行良好的角度调整。
具体地，光整形装置300的材质可以为玻璃或者塑胶，具有良好的加工性与光穿透性。
实施例3，其具体的，第一表面结构320可以设置有扩散膜，第二表面结构为平面。
如图8所示，可以在第一表面结构320的入光面或者出光面设置扩散膜，从而对光束进行角度整形，从而扩散。或者在第一表面结构320可以设置有扩散粒子，从而对光束实现扩散，而在第二表面结构320不做任何处理，使得从第一表面结构320出射的光束和第二表面结构320出射的光束扩散程度不同。
图9所示，光源系统10还可以进一步包括聚光镜400，该聚光镜400用于将从光整形装置300出射的光束进行收集，并投射到目标平面上。
在具体实施中，可以通过控制聚光镜400与光整形装置300的距离来控制透射到目标平面上光斑的效果。具体如光斑的大小与光斑的数量，以适应不同的应用场合。
如图1所示，收集透镜组200可以包括多个第一透镜器件210，多个第一透镜器件210也可以阵列或者直线排列设置，并分别一一与多个发光器件110对应。从而每个第一透镜器件210都收集与其对应的发光器件110发出的光束；从而对发光器件110发出的光束进行聚焦，以防止发光器件110发出的光束过度的扩散，并将收集到的光束入射到光整形装置300上。
如图10所示，收集透镜组200还可以是双层透镜，进一步包括多个第二透镜器件220，多个第二透镜器件220分别一一与多个第一透镜器件210 对应，具体可以设置于第一透镜器件210远离发光器件110的一侧，从而对第一透镜器件210聚焦后的光束进一步进行聚焦。
可选的，第二透镜器件220的直径比第一透镜器件210的直径大。
综上，上述实施例中，本实用新型通过发光阵列发出多光束，并通过收集透镜组收集后，入射到光整形装置上，由于光整形装置包括曲率不同的第一表面结构与第二表面结构，从而使得光束进行不同的角度整形，以使得在目标平面上形成光斑时，光斑的中心亮度大于边缘亮度。，以适应不同的应用场合。
以上仅为本实用新型的实施方式，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结果或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (10)

  1. 一种光源系统，其特征在于，所述光源系统包括：
    发光阵列；
    收集透镜，用于对所述发光阵列出射的光束进行收集；
    光整形装置，设置于所述收集透镜的出射光光路上，所述光整形装置包括用于第一面和与第一面相背的第二面，所述第一面包括多个用于对入射光进行整形的第一表面结构和第二表面结构，其中所述第一表面结构和第二表面结构具有不同曲率；
    聚光系统，所述聚光系统用于对所述光整形装置出射的光束收集并投射于目标平面。
  2. 根据权利要求1所述的光源系统，其特征在于，所述第一表面结构为曲面结构，以使得经所示第一表面结构出射光具有不同的发散角。
  3. 根据权利要求2所述的光源系统，其特征在于，所述第二表面结构为平面结构。
  4. 根据权利要求2所述的光源系统，其特征在于，所述第二表面结构包括多个子区域，其中所述多个子区域中设置曲率与第一表面结构不同的第二曲面结构。
  5. 根据权利要求2所述的光源系统，其特征在于，所述第一面包括多个等间隔设置的第一表面结构。
  6. 根据权利要求2所述的光源系统，其特征在于，所述第一面包括多个曲率不同的第一表面结构。
  7. 根据权利要求1所述的光源系统，其特征在于，所述第一表面结构设置扩散膜，所述第二表面结构为平面结构。
  8. 根据权利要求1所述的光源系统，其特征在于，所述第一表面结构对应所述第二面的投影表面设置有扩散膜。
  9. 根据权利要求1所述的光源系统，其特征在于，所述第一表面结构在所述第一面上的正投影为圆形、规则多边形或者不规则多边形。
  10. 根据权利要求1所述的光源系统，其特征在于，所述收集透镜组 包括多个第一透镜器件，所述多个第一透镜器件分别一一与所述多个发光器件对应。
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