WO2021031474A1 - 一种便携式多色激光照明系统 - Google Patents

一种便携式多色激光照明系统 Download PDF

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WO2021031474A1
WO2021031474A1 PCT/CN2019/125960 CN2019125960W WO2021031474A1 WO 2021031474 A1 WO2021031474 A1 WO 2021031474A1 CN 2019125960 W CN2019125960 W CN 2019125960W WO 2021031474 A1 WO2021031474 A1 WO 2021031474A1
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light
laser
mixing device
light mixing
color
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PCT/CN2019/125960
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English (en)
French (fr)
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李秀斌
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广州光联电子科技有限公司
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Publication of WO2021031474A1 publication Critical patent/WO2021031474A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
    • 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
    • F21V13/045—Combinations of only two kinds of elements the elements being reflectors and refractors for portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours

Definitions

  • the present invention relates to the technical field of portable lighting, and more specifically, to a portable multi-color laser lighting system.
  • LED light-emitting chips are used as the light source. Now in the entire application side, there are using reflectors to collimate the light, and some use lenses to collimate the light. However, on the application side of the flashlight, few people use multi-color LED flashlights, and in the LED flashlight system, multiple colors are added. It will cause uneven light mixing when the flashlight is at full power output.
  • the reflector In the LED flashlight, the reflector is used for collimation, and the effect of the illuminating spot is poor. A halo ring appears on the periphery of the actual light spot. This phenomenon cannot be directly eliminated by the reflector.
  • the laser portable lighting most of the blue laser light source and wavelength converter are used to obtain white light with a single color.
  • the laser beam passing through the wavelength converter has a small spot and strong energy, which can easily burn the wavelength converter.
  • the temperature of the wavelength converter is high, The efficiency of conversion will also decrease.
  • the more laser light sources are installed the higher the temperature resistance of the wavelength converter is, and the greater the probability of burning the wavelength converter.
  • the present invention aims to overcome the above-mentioned shortcomings in the prior art and provide a portable multi-color laser illumination system, which not only has a sufficiently small angle of light, can form a multi-color effect with uniform light mixing, but also does not If the components in the lighting system are burned, there is no need to consider the temperature resistance of the wavelength converter and the consequences of burning the wavelength converter or reducing the light efficiency of the wavelength converter when the light intensity is too high.
  • the technical solution adopted by the present invention is to provide a portable multi-color laser illumination system, including a laser light source, a light path adjusting device, a light mixing device, and a light collecting lens;
  • the laser light source includes at least three lights located on a multi-optical axis
  • the laser is also used to emit laser beams of at least three colors;
  • the optical path adjustment device is used to adjust the direction of the laser beam emitted by the laser on the multi-optical axis, and guide all the laser beams to the light mixing device for mixing; through the light mixing device
  • the mixed light beam is condensed to the light receiving lens to emit light.
  • the light mixing device and the light receiving lens are arranged directly opposite, and all lasers are evenly arranged around the light mixing device and the light receiving lens to further improve the uniformity of color mixing.
  • the light is directly mixed on the light mixing device .
  • the resulting wavelength converter burns or the light efficiency of the wavelength converter is reduced.
  • the optical path adjusting device includes a plurality of reflective components for reflecting the laser beams emitted by the lasers located on the multiple optical axes to the light mixing device.
  • the multiple reflective components cooperate with each other to change the direction of the laser beam emitted by the laser light source through reflection, and finally guide the multi-color laser beam to the light mixing device for direct light mixing.
  • the optical path adjustment device includes a mirror, a relay mirror and a total reflection mirror; the mirror and the laser are arranged in one-to-one correspondence and reflect the laser beam emitted by the corresponding laser to the relay mirror; the relay mirror reflects the received laser beam To the light mixing device for light mixing; the total reflection mirror is arranged behind the light mixing device on the light transmission path, and is used to reflect the light beam after being mixed by the light mixing device to the light mixing device for secondary light mixing; The light beams after the sub-mixing are converged to the light-receiving lens to emit light.
  • the total reflection mirror has the highest light energy. Since the total reflection mirror can withstand high-intensity light intensity, the total reflection mirror is not easy to burn and fail.
  • the relay mirror is a total reflection prism for receiving and reflecting the laser beams reflected by all the mirrors to the light mixing device for mixing. This arrangement can reduce the use of reflective devices and simplify the optical path of the multi-color laser illumination system.
  • the size of the light mixing device is larger than the size of the total reflection mirror.
  • the size of the light mixing device is larger, the light beam can be diffused at a larger angle, so that the better the light beam diffusion effect, the better the light mixing effect.
  • the light mixing device is a diffuser, which is used to expand the spot of the laser beam into a circular spot to achieve light mixing.
  • the light transmission path further includes an optical lens corresponding to each laser, for collimating the laser beam emitted by the corresponding laser to the optical path adjusting device.
  • it further comprises a light mixing moving structure for moving the position of the light mixing device back and forth on the light transmission path to achieve zooming.
  • This setting can achieve a stepless zoom effect, using the light mixing device to move back and forth to zoom, there will be no abnormality in the imaging of the light spot on the wall (the internal device of the lighting system cannot be displayed on the wall).
  • it further includes a light-receiving moving structure for moving the light-receiving lens back and forth on the light transmission path to achieve zooming.
  • This setting can be used when the light mixing device is not used to achieve zooming.
  • the light receiving lens moves back and forth, its focus position will also change with the movement of the position, so that the light spot on the wall is in the process of moving the light receiving lens , Will present the internal devices of the lighting system on the wall.
  • the total reflection prism is a opaque device.
  • the center of the spot on the wall is a black hole, and no light is incident on the center of the wall.
  • the laser light source includes three lasers located on three optical axes, and respectively emit red light, green light and blue light.
  • the three lasers can be arranged in an equilateral triangle.
  • the laser beams emitted by multiple lasers are incident on the corresponding mirrors after passing through the corresponding optical lenses. All the mirrors reflect the received laser beams to the total reflection prism, and the total reflection prism reflects the received laser beams to the diffuser and diffuses
  • the sheet expands the laser beam's spot into a circular spot to achieve the first mixing.
  • the beam after the first mixing enters the total reflection mirror and is totally reflected by the total reflection mirror to the diffuser.
  • the diffuser performs The second light mixing, the light beam after the second mixing enters the light receiving lens and is condensed by it.
  • FIG. 1 is a diagram of the optical path structure of a portable multi-color laser illumination system of this embodiment.
  • Figure 2 is a distribution diagram of lasers in this embodiment.
  • Figure 3 shows the spectrum of a multi-color laser.
  • Figure 4 is a CIE diagram of a multicolor laser.
  • Figure 5 shows the spectrum of a multi-color LED.
  • Figure 6 is a CIE diagram of a multi-color LED.
  • this embodiment provides a portable multi-color laser illumination system, including a laser light source, a light path adjusting device, a light mixing device 401, and a light collecting lens 701;
  • the laser light source includes at least three lasers 101 located on a multi-optical axis It is used to emit laser beams of at least three colors;
  • the optical path adjusting device is used to adjust the direction of the laser beam emitted by the laser 101 on the multi-optical axis, and guide all the laser beams to the light mixing device 401 for mixing;
  • the light beams mixed by the device 401 are condensed to the light receiving lens 701 to emit light.
  • Figures 3 and 4 are the spectrogram and CIE diagram of the multi-color laser, respectively, and Figures 5 and 6 are the spectrogram and CIE diagram of the multi-color LED, respectively. It can be seen from the figure that compared to the LED, the laser has a narrower spectrum. , Monochromatic colors are characterized by high color purity and wide color gamut.
  • the laser light source includes three lasers 101 located on three optical axes, and emits red light, green light and blue light respectively. The three lasers can be arranged in an equilateral triangle.
  • the light mixing device 401 and the light receiving lens 701 are arranged directly opposite, and all lasers 101 are uniformly arranged around the light mixing device 401 and the light receiving lens 701 to further improve the uniformity of color mixing.
  • the laser beams of multiple colors emitted by multiple lasers 101 are adjusted directly on the light mixing device 401 after optical paths are adjusted.
  • the light is mixed so that the light angle is small enough to form a uniform multi-color effect.
  • the wavelength converter may be burned or the light efficiency of the wavelength converter will be reduced.
  • the optical path adjusting device includes a plurality of reflective components for reflecting the laser beam emitted by the laser 101 located on the multiple optical axis to the light mixing device 401.
  • the multiple reflection components cooperate with each other to change the direction of the laser beam emitted by the laser light source through reflection, and finally guide the multi-color laser beam to the light mixing device 401 for direct light mixing.
  • the optical path adjustment device includes a mirror 201, a relay mirror, and a total reflection mirror 601; the mirror 201 is arranged in a one-to-one correspondence with the laser 101 and reflects the laser beam emitted by the corresponding laser 101 to the relay mirror; the relay mirror The received laser beam is reflected to the light mixing device 401 for light mixing; the total reflection mirror 601 is arranged behind the light mixing device 401 on the light transmission path, and is used to reflect the light beam mixed by the light mixing device 401 to the light mixing device 401 Perform secondary light mixing; the light beams after the secondary light mixing by the light mixing device 401 are condensed to the light receiving lens 701 to emit light.
  • the total reflection mirror 601 has the highest light energy. Since the total reflection mirror 601 can withstand high intensity light, the total reflection mirror 601 is not easy to burn and fail.
  • the relay mirror is a total reflection prism 301 for receiving and reflecting the laser beams reflected by all the mirrors 201 to the light mixing device 401 for mixing.
  • This arrangement can reduce the use of reflective devices and simplify the optical path of the multi-color laser illumination system.
  • the size of the light mixing device 401 is larger than the size of the total reflection mirror 601.
  • the size of the light mixing device 401 is larger, the light beam can be diffused at a larger angle, so that the better the light beam diffusion effect, the better the light mixing effect.
  • the light mixing device 401 is a diffuser, which is used to expand the spot of the laser beam into a circular spot to achieve light mixing.
  • the light transmission path further includes an optical lens 501 corresponding to each laser 101 for collimating the laser beam emitted by the corresponding laser 101 to the optical path adjusting device.
  • the light mixing moving structure for moving the position of the light mixing device 401 back and forth on the light transmission path to achieve zooming.
  • This setting can achieve a stepless zoom effect.
  • the light mixing device 401 is used to move back and forth to zoom, and there will be no abnormality in the imaging of the light spot on the wall (the internal device of the lighting system cannot be displayed on the wall).
  • this embodiment also includes a light-receiving moving structure for moving the position of the light-receiving lens 701 back and forth on the light transmission path to achieve zooming.
  • This setting can be used when the light mixing device 401 is not used to achieve zooming.
  • the light-receiving lens 701 moves back and forth, its focal position will also change with the movement of the position, so that the light spot on the wall moves on the light-receiving lens 701 In the process, the internal devices of the lighting system will be presented on the wall.
  • the total reflection prism 301 is a light-proof device.
  • the center of the spot on the upper wall is a black hole, and no light is incident on the center of the upper wall.
  • the laser beams emitted by the multiple lasers 101 pass through the corresponding optical lens 501 and are incident on the corresponding mirror 201. All the mirrors 201 reflect the received laser beam to the total reflection prism 301, and the total reflection prism 301 will receive the laser beam Reflected on the diffuser, the diffuser expands the spot of the laser beam into a circular spot to achieve the first light mixing. The light beam after the first mixing enters the total reflection mirror 601 and is totally reflected by the total reflection mirror 601 again. The diffuser, the diffuser mixes the light beam for the second time, and the light beam after the second mixing is incident on the light receiving lens 701 to be condensed out.

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

一种便携式多色激光照明系统，包括激光光源、光路调节装置、混光装置（401）及收光透镜（701）；激光光源包括位于多光轴的至少三颗激光器（101）并用于发出至少三种颜色的激光光束；光路调节装置用于调节位于多光轴上的激光器（101）发出的激光光束的方向，并将所有激光光束引导至混光装置（401）进行混光；经混光装置（401）混光后的光束汇聚到收光透镜（701）进行出光。由于激光的光谱窄、单色的颜色色纯度高、色域范围广，通过对多种颜色激光光束进行光路调节后，直接在混光装置（401）上进行混光，使得出光角度足够小，形成混光均匀的多色效果，而且相对于现有激光便携式照明，不会烧毁照明系统内器件，无需考虑波长转换器的耐温性与光强太高时造成的波长转换器烧毁或光效降低等后果。

Description

一种便携式多色激光照明系统 技术领域
本发明涉及便携式照明技术领域，更具体地，涉及一种便携式多色激光照明系统。
背景技术
在便携式照明中，应用较多的有手电筒、吊顶灯、应急灯及台灯等。
而在手电筒应用中，发光光源使用的是LED发光芯片。现在在整个应用端，有使用反光杯准直出光，也有使用透镜准直出光，但是在手电的应用端，很少有人使用多色的LED手电，而且在LED手电系统中，增加多个颜色，会导致手电全功率输出时，造成的混光不均匀等现象。
在LED手电中，使用反光杯来进行准直，照明光斑的效果较差，实际出光的光斑的外围一圈，会出现光晕环，这种现象无法直接通过反光杯来消除。
在使用透镜来准直时，如是需求整个手电出光角度小、照射距离远的话，出来的光斑效果会把LED表面的像给呈现出来，造成视觉的体验感不是很好。
在LED手电的领域中，由于出光口径限制的很小，大部分的手电都无法做到准直性强、CIE色域广、色纯度高且在多色中混光效果较好的产品。
而在激光便携式照明中，大部分采用的都是蓝光激光光源加上波长转换器得到白光，颜色单一。在便携式激光照明中，为了完全发挥激光的准直性强的优势，激光通过波长转换器上的光斑很小，能量很强，很容易烧毁波长转换器，而且波长转换器在温度较高时，转换的效率也会降低。在激光便携式照明中，设置越多的激光器光源，波长转换器的耐温性要求越高，而且烧毁波长转换器的几率也越大。
技术问题
本发明旨在克服上述现有技术中的缺陷，提供一种便携式多色激光照明系统，不但出光角度足够小，能形成混光均匀的多色效果，而且相对于现有激光便携式照明，不会烧毁照明系统内的器件，无需考虑波长转换器的耐温性与光强太 高时造成的波长转换器烧毁或降低波长转换器的光效等后果。
问题的解决方案
技术解决方案
为达到上述目的，本发明采取的技术方案是：提供一种便携式多色激光照明系统，包括激光光源、光路调节装置、混光装置及收光透镜；激光光源包括位于多光轴的至少三颗激光器并用于发出至少三种颜色的激光光束；光路调节装置用于调节位于多光轴上的激光器发出的激光光束的方向，并将所有激光光束引导至混光装置进行混光；经混光装置混光后的光束汇聚到收光透镜进行出光。
混光装置及收光透镜正对设置，所有激光器均匀环绕混光装置及收光透镜设置，以进一步提高混色的均匀性。
上述方案中，由于激光的光谱窄、单色的颜色色纯度高、色域范围广，通过对多颗激光器发出的多种颜色的激光光束进行光路调节后，直接在混光装置上进行混光，使得出光角度足够小，能形成混光均匀的多色效果，而且相对于现有激光便携式照明，不会烧毁照明系统内的器件，无需考虑波长转换器的耐温性与光强太高时造成的波长转换器烧毁或降低波长转换器的光效等后果。
优选地，光路调节装置包括多个反射组件，用于反射位于多光轴上的激光器发出的激光光束至混光装置。多个反射组件相互配合，通过反射改变激光光源发出的激光光束的方向，并最终将多色激光光束引导至混光装置直接进行混光。
进一步优选地，光路调节装置包括反射镜、中转反射镜及全反射镜；反射镜与激光器一一对应设置并将对应激光器发出的激光光束反射至中转反射镜；中转反射镜将接收的激光光束反射至混光装置进行混光；全反射镜在光线传输路径上设于混光装置后方，并用于反射经混光装置混光后的光束至混光装置进行二次混光；经混光装置二次混光后的光束汇聚到收光透镜进行出光。该多色激光照明系统中，全反射镜处光能量最高，由于全反射镜能承受高强度的光强，因此全反射镜不易烧毁与失效。
更进一步优选地，中转反射镜为一个全反射棱镜，用于接收并反射所有反射镜反射来的激光光束至混光装置进行混光。这样设置可以减少反射器件的使用，简化该多色激光照明系统光路。
优选地，混光装置的尺寸大于全反射镜的尺寸。混光装置的尺寸越大越好，混光装置的尺寸越大时，可以更大角度地扩散光束，使得光束的扩散效果越好，混光效果越佳。
优选地，混光装置为扩散片，用于将激光光束的光斑扩束为圆形光斑以实现混光。
优选地，在光线传输路径上还包括对应设于每一激光器后的光学透镜，用于准直对应激光器发出的激光光束至光路调节装置。
优选地，还包括用于在光线传输路径上前后移动混光装置位置以实现变焦的混光移动结构。这样设置可以实现无极变焦效果，利用混光装置前后移动来进行变焦，不会出现上墙光斑成像的异常(照明系统内部装置无法呈现到墙上)。
优选地，还包括用于在光线传输路径上前后移动收光透镜位置以实现变焦的收光移动结构。在不采用混光装置实现变焦时，可以使用该设置，收光透镜在前后移动的过程中，其焦点位置也会随着位置的移动而改变，从而上墙光斑在收光透镜移动的过程中，会把照明系统内部装置呈现到墙上。
在该多色激光照明系统中，全反射棱镜为不透光装置，在移动收光透镜进行变焦中，上墙光斑中心为黑洞，没有光线入射到上墙中心处。
优选地，激光光源包括位于三个光轴上的三颗激光器，并分别发出红光、绿光及蓝光。三颗激光器可呈等边三角形排列。
多颗激光器发出的激光光束通过对应的光学透镜后入射到对应的反射镜上，所有反射镜将接收的激光光束反射至全反射棱镜上，全反射棱镜将接收的激光光束反射至扩散片上，扩散片将激光光束的光斑扩束为圆形光斑以实现第一次混光，第一次混光后的光束入射至全反射镜并被全反射镜再次全反射至扩散片，扩散片对光束进行第二次混光，经第二次混光后的光束入射到收光透镜被其汇聚出光。
发明的有益效果
有益效果
与现有技术相比，本发明的有益效果为：
由于激光的光谱窄、单色的颜色色纯度高、色域范围广，通过对多颗激光器发 出的多种颜色的激光光束进行光路调节后，直接在混光装置上进行混光，使得出光角度足够小，能形成混光均匀的多色效果，而且相对于现有激光便携式照明，不会烧毁照明系统内的器件，无需考虑波长转换器的耐温性与光强太高时造成的波长转换器烧毁或降低波长转换器的光效等后果。
对附图的简要说明
附图说明
图1为本实施例一种便携式多色激光照明系统的光路结构图。
图2为本实施例中激光器分布图。
图3为多色激光的光谱图。
图4为多色激光的CIE图。
图5为多色LED的光谱图。
图6为多色LED的CIE图。
附图标识：101激光器；201反射镜；301全反射棱镜；401混光装置；501光学透镜；601全反射镜；701收光透镜。
实施该发明的最佳实施例
本发明的最佳实施方式
如图1所示，本实施例提供一种便携式多色激光照明系统，包括激光光源、光路调节装置、混光装置401及收光透镜701；激光光源包括位于多光轴的至少三颗激光器101并用于发出至少三种颜色的激光光束；光路调节装置用于调节位于多光轴上的激光器101发出的激光光束的方向，并将所有激光光束引导至混光装置401进行混光；经混光装置401混光后的光束汇聚到收光透镜701进行出光。
图3和图4分别为多色激光的光谱图和CIE图，图5和图6分别为多色LED的光谱图和CIE图，从图中可以看出，相比于LED，激光具有光谱窄、单色的颜色色纯度高、色域范围广的特点。本实施例中，如图2所示，激光光源包括位于三个光轴上的三颗激光器101，并分别发出红光、绿光及蓝光。三颗激光器可呈等边三角形排列。
本实施例中，混光装置401及收光透镜701正对设置，所有激光器101均匀环绕混光装置401及收光透镜701设置，以进一步提高混色的均匀性。
本实施例中，由于激光的光谱窄、单色的颜色色纯度高、色域范围广，通过对多颗激光器101发出的多种颜色的激光光束进行光路调节后，直接在混光装置401上进行混光，使得出光角度足够小，能形成混光均匀的多色效果，而且相对于现有激光便携式照明，不会烧毁照明系统内的器件，无需考虑波长转换器的耐温性与光强太高时造成的波长转换器烧毁或降低波长转换器的光效等后果。
其中，光路调节装置包括多个反射组件，用于反射位于多光轴上的激光器101发出的激光光束至混光装置401。多个反射组件相互配合，通过反射改变激光光源发出的激光光束的方向，并最终将多色激光光束引导至混光装置401直接进行混光。
本实施例中，光路调节装置包括反射镜201、中转反射镜及全反射镜601；反射镜201与激光器101一一对应设置并将对应激光器101发出的激光光束反射至中转反射镜；中转反射镜将接收的激光光束反射至混光装置401进行混光；全反射镜601在光线传输路径上设于混光装置401后方，并用于反射经混光装置401混光后的光束至混光装置401进行二次混光；经混光装置401二次混光后的光束汇聚到收光透镜701进行出光。该多色激光照明系统中，全反射镜601处光能量最高，由于全反射镜601能承受高强度的光强，因此全反射镜601不易烧毁与失效。
本实施例中，中转反射镜为一个全反射棱镜301，用于接收并反射所有反射镜201反射来的激光光束至混光装置401进行混光。这样设置可以减少反射器件的使用，简化该多色激光照明系统光路。
另外，混光装置401的尺寸大于全反射镜601的尺寸。混光装置401的尺寸越大越好，混光装置401的尺寸越大时，可以更大角度地扩散光束，使得光束的扩散效果越好，混光效果越佳。
本实施例中，混光装置401为扩散片，用于将激光光束的光斑扩束为圆形光斑以实现混光。
其中，在光线传输路径上还包括对应设于每一激光器101后的光学透镜501，用于准直对应激光器101发出的激光光束至光路调节装置。
另外，还包括用于在光线传输路径上前后移动混光装置401位置以实现变焦的混光移动结构。这样设置可以实现无极变焦效果，利用混光装置401前后移动来 进行变焦，不会出现上墙光斑成像的异常(照明系统内部装置无法呈现到墙上)。
本实施例中，还包括用于在光线传输路径上前后移动收光透镜701位置以实现变焦的收光移动结构。在不采用混光装置401实现变焦时，可以使用该设置，收光透镜701在前后移动的过程中，其焦点位置也会随着位置的移动而改变，从而上墙光斑在收光透镜701移动的过程中，会把照明系统内部装置呈现到墙上。
在该多色激光照明系统中，全反射棱镜301为不透光装置，在移动收光透镜701进行变焦中，上墙光斑中心为黑洞，没有光线入射到上墙中心处。
多颗激光器101发出的激光光束通过对应的光学透镜501后入射到对应的反射镜201上，所有反射镜201将接收的激光光束反射至全反射棱镜301上，全反射棱镜301将接收的激光光束反射至扩散片上，扩散片将激光光束的光斑扩束为圆形光斑以实现第一次混光，第一次混光后的光束入射至全反射镜601并被全反射镜601再次全反射至扩散片，扩散片对光束进行第二次混光，经第二次混光后的光束入射到收光透镜701被其汇聚出光。
显然，本发明的上述实施例仅仅是为清楚地说明本发明技术方案所作的举例，而并非是对本发明的具体实施方式的限定。凡在本发明权利要求书的精神和原则之内所作的任何修改、等同替换和改进等，均应被包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种便携式多色激光照明系统，其特征在于，包括激光光源、光路调节装置、混光装置(401)及收光透镜(701)；激光光源包括位于多光轴的至少三颗激光器(101)并用于发出至少三种颜色的激光光束；光路调节装置用于调节位于多光轴上的激光器(101)发出的激光光束的方向，并将所有激光光束引导至混光装置(401)进行混光；经混光装置(401)混光后的光束汇聚到收光透镜(701)进行出光。
  2. 根据权利要求1所述的一种便携式多色激光照明系统，其特征在于，光路调节装置包括多个反射组件，用于反射位于多光轴上的激光器(101)发出的激光光束至混光装置(401)。
  3. 根据权利要求2所述的一种便携式多色激光照明系统，其特征在于，光路调节装置包括反射镜(201)、中转反射镜及全反射镜(601)；反射镜(201)与激光器(101)一一对应设置并将对应激光器(101)发出的激光光束反射至中转反射镜；中转反射镜将接收的激光光束反射至混光装置(401)进行混光；全反射镜(601)在光线传输路径上设于混光装置(401)后方，并用于反射经混光装置(401)混光后的光束至混光装置(401)进行二次混光；经混光装置(401)二次混光后的光束汇聚到收光透镜(701)进行出光。
  4. 根据权利要求3所述的一种便携式多色激光照明系统，其特征在于，中转反射镜为一个全反射棱镜(301)，用于接收并反射所有反射镜(201)反射来的激光光束至混光装置(401)进行混光。
  5. 根据权利要求3所述的一种便携式多色激光照明系统，其特征在于，混光装置(401)的尺寸大于全反射镜(601)的尺寸。
  6. 根据权利要求1所述的一种便携式多色激光照明系统，其特征在于，混光装置(401)为扩散片，用于将激光光束的光斑扩束为圆形光斑以实现混光。
  7. 根据权利要求1所述的一种便携式多色激光照明系统，其特征在于，在光线传输路径上还包括对应设于每一激光器(101)后的光学透镜(501)，用于准直对应激光器(101)发出的激光光束至光路调节装置。
  8. 根据权利要求1所述的一种便携式多色激光照明系统，其特征在于，还包括用于在光线传输路径上前后移动混光装置(401)位置以实现变焦的混光移动结构。
  9. 根据权利要求1所述的一种便携式多色激光照明系统，其特征在于，还包括用于在光线传输路径上前后移动收光透镜(701)位置以实现变焦的收光移动结构。
  10. 根据权利要求1所述的一种便携式多色激光照明系统，其特征在于，激光光源包括位于三个光轴上的三颗激光器(101)，并分别发出红光、绿光及蓝光。
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