WO2021082216A1 - 一种光源系统 - Google Patents

一种光源系统 Download PDF

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Publication number
WO2021082216A1
WO2021082216A1 PCT/CN2019/125967 CN2019125967W WO2021082216A1 WO 2021082216 A1 WO2021082216 A1 WO 2021082216A1 CN 2019125967 W CN2019125967 W CN 2019125967W WO 2021082216 A1 WO2021082216 A1 WO 2021082216A1
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WO
WIPO (PCT)
Prior art keywords
light
prism
group
incident
emitting module
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PCT/CN2019/125967
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English (en)
French (fr)
Inventor
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 WO2021082216A1 publication Critical patent/WO2021082216A1/zh

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    • 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
    • G02B27/0938—Using specific optical elements
    • G02B27/0977—Reflective elements
    • 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
    • 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
    • G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
    • G02B27/0922—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers the semiconductor light source comprising an array of light emitters

Definitions

  • the present invention relates to the field of light source technology, and more specifically, to a light source system.
  • Laser and LED light sources have the advantage of high stability. Lasers and LED chips are ideal light source generators, but the power of a single emitter is limited. Currently, commercial semiconductor lasers can only achieve milliwatt levels, while the concentration of LED light sources It is weak. If you want to obtain a higher power beam output, you can only use several laser tubes or LED collimated beams for coupling. Limited by the packaging size of a single light emitter, laser tubes or light-emitting diodes cannot be assembled together in a dense manner, which will cause the light beams to separate from each other. Therefore, it is necessary to use the restraint system of the light source to compress the beam as a whole.
  • the overall beam aspect ratio is not equal to 1, and a cylindrical restraint system is required to compress the beam in one direction.
  • the cylindrical lens restraint system includes a cylindrical lens with positive power and a cylindrical lens with negative power. The focal lengths of the cylindrical lens overlap so that the beams passing through the system are still parallel to each other, and the space between the beams is reduced. small.
  • this restraint system has a larger distance between the cylinder lenses, a longer light path, and a larger light source system size, which greatly reduces its practicability.
  • the purpose of the present invention is to provide a light source system to solve the above-mentioned problems in the background art.
  • the present invention provides a light source system, including a light emitting module and a prism group, the prism group is placed in front of the light beam exit port of the light emitting module, the prism group includes a plurality of prisms, and the light beam enters the surface of the prism in the prism group Is the incident surface, the surface of the prism group where the light beam is totally reflected after contacting the prism surface is the reflecting surface, the surface where the light beam exits the prism in the prism group is the exit surface, the incident light beam is perpendicular to the incident surface, and the light beam is reflecting
  • the incident angle on the surface is greater than the critical angle, the light beam is totally reflected with two or more reflective surfaces in the prism group until it exits, the exit light beam is perpendicular to the exit surface of the prism, and the total exit light beam after passing through the prism group is dimensioned in a specific direction compression.
  • the critical angle is determined by the prism material. When the incident angle is greater than or equal to the critical angle, the incident light will be totally reflected. The light path does not change after the light beam passes through the incident surface vertically, avoiding refraction or stray light from interfering with the light path.
  • the light-emitting module is composed of a plurality of light-emitting device groups, the light-emitting module includes a laser light source module and/or an LED light source module, the laser light source module includes a plurality of lasers, and the LED light source module includes a plurality of One LED chip.
  • the prisms of the prism group are placed up and down and/or left and right and/or rotationally symmetric in front of the light emitting module.
  • the light beams at the top and bottom and/or left and right and/or rotationally symmetric ends of the light-emitting module can be deflected toward the center by the reflection of the prism group.
  • the two reflection surfaces of the prisms of the prism group for reflecting the same light beam are parallel to each other; the incident surface and the exit surface of the prisms of the prism group are parallel to each other.
  • the light path does not change after the light beam passes through the entrance front, and the light path does not change after the light beam passes through the exit front.
  • the light beam propagates in the prism group without contacting other prism surfaces except the reflective surface, and the light does not contact the prism surface when it shuttles inside, so as to avoid light refraction.
  • the mutually parallel light beams emitted by the light-emitting device groups of the light-emitting module are incident on a plurality of matching incident surfaces, and the final outgoing light beams are parallel to each other.
  • the exit position of the final light beam is adjusted by changing the angle and position of the reflecting surface, and then the exit light beam interval or aspect ratio is adjusted.
  • the size of the reflecting surface can be designed according to actual needs.
  • the reflecting surface is matched with the beam, and the exit position of the final beam can be flexibly adjusted by changing the angle and position of the reflecting surface.
  • the number of light-emitting device groups of the light-emitting module is an odd number.
  • the light beam or group of light beams located in the middle does not pass through the prism group and directly emits, and the light beams of the surrounding light-emitting device groups are emitted after passing through the prism.
  • the surrounding outgoing beams all move closer to the center after being reflected, which compresses the light source size range of the outgoing beam.
  • the number of light-emitting device groups of the light-emitting module is an even number, and all the outgoing light beams of the light-emitting module are emitted after passing through the prism, or the light beam located in the center only passes through the incident surface and the exit surface of the prism and is emitted.
  • the group of outgoing beams exits after passing through the prism. According to the requirements of the size of the outgoing beam, the outgoing method can be selected flexibly.
  • a further solution of the present invention is that before the plane where the light-emitting module is located, a group of prism groups whose incident surface is parallel to the plane where the light-emitting module is located is used to compress the light source. At least one of the planes is parallel to the plane where the light-emitting module is located, and then a vertical prism group is placed. The incident surface of the prism group is parallel to the plane where the light-emitting module is located, and the light beam reflected by the reflective surface for the first time is the same as the previous prism group.
  • the light beams reflected by the reflective surface for the first time are perpendicular to each other, and at least one of the planes of the light beams reflected by the reflective surface for the first time is parallel to the plane where the light-emitting module is located, and the vertical prism group directs the light beams in another direction
  • the compression to compress the size of the outgoing beam as a whole to achieve the desired aspect ratio of the outgoing light. That is, when the light-emitting modules are arranged in an array, the prism group is used to compress the horizontal axis of the parallel plane of the light-emitting module, and the vertical prism group is used to compress the vertical axis, so that the side length of the light beam is uniform when exiting from the prism, instead of Long strip.
  • the compression distance ratio of the same light-emitting module in the horizontal and vertical axis directions is generally proportional to the ratio of the number of light-emitting device groups arranged in the horizontal and vertical axis directions.
  • one of the preferred solutions of the present invention is that when the prism group is used to compress the light beam of the light-emitting module, the incident angle of the light beam on the reflecting surface is 45°, and the prism of the prism group is A parallelogram or a polygon formed by splicing multiple parallelograms. More preferably, the parallelogram is a rhombus.
  • the mutually parallel light beams emitted by the light emitter groups of the light-emitting module are incident on the reflecting surface, and all the reflected light beams enter the other reflecting surface with a reflection angle of 45°.
  • the final outgoing beams are parallel to each other, and the beam spacing is reduced.
  • the cross section refers to the plane perpendicular to the beam itself.
  • the refractive lens group is eliminated, and the reflective prism group is used instead, the light path size is shortened, and the size of the overall light source system is reduced;
  • the surrounding outgoing light beams are all close to the center after being reflected by the prism group, the light beams are converged, and the intensity of the outgoing light beam is increased;
  • the reflecting surface and the light beam are matched and placed, the position of the finally emitted light beam can be adjusted by changing the angle of the reflecting surface, the operation is flexible and changeable, and it has very strong practicability.
  • Figure 1 is a schematic diagram of the structure of a prior art optical path restraint system.
  • Embodiment 1 is a schematic diagram of the longitudinal cross-sectional structure of Embodiment 1 of the light source system of the present invention.
  • Embodiment 3 is a schematic diagram of the three-dimensional structure of Embodiment 1 of the light source system of the present invention.
  • Embodiment 4 is a schematic diagram of a longitudinal cross-sectional structure of Embodiment 2 of the light source system of the present invention.
  • Embodiment 3 is a schematic diagram of the three-dimensional structure of Embodiment 3 of the light source system of the present invention.
  • Fig. 6 is a schematic longitudinal cross-sectional structure diagram of Embodiment 4 of the light source system of the present invention.
  • FIG. 7 is a schematic diagram of a longitudinal cross-sectional structure of Embodiment 5 of a light source system of the present invention.
  • Fig. 8 is a schematic longitudinal cross-sectional structure diagram of Embodiment 6 of the light source system of the present invention.
  • Embodiment 6 is a schematic diagram of the three-dimensional structure of Embodiment 6 of the light source system of the present invention.
  • Fig. 10 is a schematic longitudinal cross-sectional structure diagram of Embodiment 7 of the light source system of the present invention.
  • Embodiment 8 is a schematic diagram of the longitudinal cross-sectional structure of Embodiment 8 of the light source system of the present invention
  • FIG. 12 is a schematic diagram of the three-dimensional structure of Embodiment 9 of the light source system of the present invention.
  • the figure includes light-emitting module 1, prism group 2, vertical prism group 3, light-emitting device group 1-1, light-emitting device group 1-2, light-emitting device group 1-3, light-emitting device group 1-4, light-emitting device group 1- 5.
  • a light source system includes a light-emitting module and a prism group, and the number of light-emitting device groups at this time is an odd number.
  • the light-emitting module is composed of 3 light-emitting device groups arranged side by side
  • the prism group is composed of 2 symmetrically placed prisms, including face 2-1-1, face 2-1-2, face 2-2-1, face 2-2 -2 is the reflecting surface, the surface 2-1-5 and the surface 2-2-5 are the exit surfaces, and the surface 2-1-6 and the surface 2-2-6 are the entrance surfaces.
  • FIG. 3 is a schematic diagram of the three-dimensional structure of the light source system of Embodiment 1.
  • FIG. 3 is a schematic diagram of the three-dimensional structure of the light source system of Embodiment 1.
  • a light source system includes a light-emitting module and a prism group.
  • the number of light-emitting device groups is an even number.
  • the light-emitting module is composed of 4 light-emitting device groups arranged side by side
  • the prism group is composed of 2 symmetrically placed prisms, including face 2-1-1, face 2-1-2, face 2-1-3, and face 2-2 -1, surface 2-2-2, surface 2-2-3 are reflecting surfaces, surface 2-1-5 and surface 2-2-5 are exit surfaces, surface 2-1-6 and surface 2-1-7 , Surface 2-2-6 and Surface 2-2-7 are the incident surface.
  • the light beam emitted by the light emitter group 1-1 passes through the incident surface 2-1-6 and enters the reflective surface 2-1-1 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-3, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-2 passes through the incident surface 2-1-7, and enters the reflective surface 2-1-2 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-3, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the illuminator group 1-3 passes through the incident surface 2-2-7 and enters the reflective surface 2-2-2 of the prism 2-2.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-2
  • On 2-2-3 the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the light beam emitted by the illuminator group 1-4 passes through the incident surface 2-2-6 and enters the reflective surface 2-2-1 of the prism 2-2. After the beam is deflected by 90°, it enters the reflective surface of the prism 2-2.
  • the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the emitted light beams are parallel to each other. Compared with the incident light, the interval between the emitted light beams is reduced and concentrated in the middle of the light emitter group 1-2 and the light emitter group 1-3.
  • a light source system includes a light-emitting module 1 and a prism group 2.
  • the prism group 2 is composed of two symmetrically placed prisms. The four light beams in the middle pass through the incident surface and the exit surface of the prism and exit directly, and the exit beams of the surrounding illuminator group contact the reflective surface in the prism and exit after being totally reflected twice.
  • a light source system includes a light-emitting module and a prism group.
  • the number of light-emitting device groups is an odd number.
  • the light-emitting module is composed of 5 light-emitting device groups arranged side by side
  • the prism group is composed of 2 symmetrically placed prisms, including face 2-1-1, face 2-1-2, face 2-1-3, and face 2-1 -4, surface 2-2-1, surface 2-2-2, surface 2-2-3, surface 2-2-4 are reflective surfaces, surface 2-1-5 and surface 2-2-5 are exit surfaces , Surface 2-1-6, Surface 2-1-7, Surface 2-2-6, Surface 2-2-7 are the incident surfaces.
  • the light beam emitted by the light emitter group 1-1 passes through the incident surface 2-1-6 and enters the reflective surface 2-1-1 of the prism 2-1.
  • the light beam is deflected at an obtuse angle and enters the reflective surface 2 of the prism 2-1.
  • On -1-3 the beam is deflected at an obtuse angle and exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-2 passes through the incident surface 2-1-7 and enters the reflective surface 2-1-2 of the prism 2-1. After the light beam is deflected at an acute angle, it enters the reflective surface 2 of the prism 2-1.
  • the beam is deflected at an acute angle and then exits through the exit surface 2-1-5.
  • the light beams emitted by the light emitter groups 1-3 are directly emitted.
  • the light beam emitted by the illuminator group 1-4 passes through the incident surface 2-2-7 and enters the reflective surface 2-2-2 of the prism 2-2. After the light beam is deflected at an acute angle, it enters the reflective surface 2 of the prism 2-2. On -2-4, the beam is deflected at an acute angle and then exits through the exit surface 2-2-5.
  • the light beam emitted by the illuminator group 1-5 passes through the incident surface 2-2-6 and enters the reflective surface 2-2-1 of the prism 2-2. After the light beam is deflected at an obtuse angle, it enters the reflective surface 2 of the prism 2-2.
  • the beam is deflected at an obtuse angle and then exits through the exit surface 2-2-5.
  • the emitted light beams are parallel to each other. Compared with the incident light, the interval between the emitted light beams is reduced and concentrated in the middle of the light emitter group 1-2 and the light emitter group 1-4.
  • a light source system includes a light-emitting module and a prism group.
  • the number of light-emitting device groups is an odd number.
  • the light-emitting module is composed of 5 light-emitting device groups arranged side by side
  • the prism group is composed of 2 symmetrically placed prisms, including face 2-1-1, face 2-1-2, face 2-1-3, and face 2-1 -4, surface 2-2-1, surface 2-2-2, surface 2-2-3, surface 2-2-4 are reflective surfaces, surface 2-1-5 and surface 2-2-5 are exit surfaces , Surface 2-1-6 and surface 2-2-6 are incident surfaces.
  • the light beam emitted by the light emitter group 1-1 passes through the incident surface 2-1-6, and enters the reflective surface 2-1-1 of the prism 2-1. After the light beam is deflected at an acute angle, it enters the reflective surface 2 of the prism 2-1. On -1-3, the beam is deflected at an acute angle and then exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-2 passes through the incident surface 2-1-6 and enters the reflective surface 2-1-2 of the prism 2-1. The light beam is deflected at an obtuse angle and enters the reflective surface 2 of the prism 2-1. On -1-4, the beam is deflected at an obtuse angle and then exits through the exit surface 2-1-5.
  • the light beams emitted by the light emitter groups 1-3 are directly emitted.
  • the light beam emitted by the illuminator group 1-4 passes through the incident surface 2-2-6 and enters the reflective surface 2-2-2 of the prism 2-2. After the light beam is deflected at an obtuse angle, it enters the reflective surface 2 of the prism 2-2. On -2-4, the beam is deflected at an obtuse angle and exits through the exit surface 2-2-5.
  • the light beam emitted by the light emitter group 1-5 passes through the incident surface 2-2-6 and enters the reflective surface 2-2-1 of the prism 2-2. After the light beam is deflected at an acute angle, it enters the reflective surface 2 of the prism 2-2.
  • the beam passes through the exit surface 2-2-5 and exits after being deflected at an acute angle.
  • the emitted light beams are parallel to each other. Compared with the incident light, the interval between the emitted light beams is reduced and concentrated in the middle of the light emitter group 1-2 and the light emitter group 1-4.
  • a light source system includes a light-emitting module and a prism group.
  • the number of light-emitting device groups is an odd number.
  • the light-emitting module is composed of 5 light-emitting device groups arranged side by side
  • the prism group is composed of 2 symmetrically placed prisms, including face 2-1-1, face 2-1-2, face 2-1-3, and face 2-2 -1, surface 2-2-2, surface 2-2-3 are reflecting surfaces, surface 2-1-5 and surface 2-2-5 are exit surfaces, surface 2-1-6 and surface 2-1-7 , Surface 2-2-6 and Surface 2-2-7 are the incident surface.
  • the light beam emitted by the light emitter group 1-1 passes through the incident surface 2-1-6 and enters the reflective surface 2-1-1 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-3, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-2 passes through the incident surface 2-1-7, and enters the reflective surface 2-1-2 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-3, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beams emitted by the light emitter groups 1-3 are directly emitted.
  • the light beam emitted by the illuminator group 1-4 passes through the incident surface 2-2-7 and enters the reflective surface 2-2-2 of the prism 2-2. After the beam is deflected by 90°, it enters the reflective surface of the prism 2-2 On 2-2-3, the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the light beam emitted by the illuminator group 1-5 passes through the incident surface 2-2-6 and enters the reflective surface 2-2-1 of the prism 2-2. The beam is deflected by 90° and enters the reflective surface of the prism 2-2 On 2-2-3, the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • FIG. 9 is a schematic diagram of the three-dimensional structure of the light source system of the sixth embodiment.
  • a light source system includes a light-emitting module and a prism group, and the number of light-emitting device groups is an even number at this time.
  • the light-emitting module is composed of 6 light-emitting device groups arranged side by side
  • the prism group is composed of 2 symmetrically placed prisms, including face 2-1-1, face 2-1-2, face 2-1-3, and face 2-1 -4, surface 2-2-1, surface 2-2-2, surface 2-2-3, surface 2-2-4 are reflective surfaces, surface 2-1-5 and surface 2-2-5 are exit surfaces , Surface 2-1-6, Surface 2-1-7, Surface 2-1-8, Surface 2-2-6, Surface 2-2-7, Surface 2-2-8 are the incident surfaces.
  • the light beam emitted by the light emitter group 1-1 passes through the incident surface 2-1-6 and enters the reflective surface 2-1-1 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-4, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-2 passes through the incident surface 2-1-7, and enters the reflective surface 2-1-2 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-4, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-3 passes through the incident surface 2-1-8, and is incident on the reflective surface 2-1-3 of the prism 2-1.
  • the light beam is deflected by 90° and enters the reflective surface of the prism 2-1
  • the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the illuminator group 1-4 passes through the incident surface 2-2-8 and enters the reflective surface 2-2-3 of the prism 2-2.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-2 On 2-2-4, the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the light beam emitted by the illuminator group 1-5 passes through the incident surface 2-2-7 and enters the reflective surface 2-2-2 of the prism 2-2. After the beam is deflected by 90°, it enters the reflective surface of the prism 2-2. On 2-2-4, the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the light beam emitted by the illuminator group 1-6 passes through the incident surface 2-2-6 and enters the reflective surface 2-2-1 of the prism 2-2. After the beam is deflected by 90°, it enters the reflective surface of the prism 2-2 On 2-2-4, the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the emitted light beams are parallel to each other. Compared with the incident light, the interval between the emitted light beams is reduced and concentrated in the middle of the light emitter group 1-3 and the light emitter group 1-4.
  • a light source system includes a light-emitting module and a prism group, and the number of light-emitting device groups at this time is an odd number.
  • the light-emitting module is composed of 7 light-emitting device groups arranged side by side
  • the prism group is composed of two symmetrically placed prisms, including face 2-1-1, face 2-1-2, face 2-1-3, and face 2-1 -4, surface 2-2-1, surface 2-2-2, surface 2-2-3, surface 2-2-4 are reflective surfaces, surface 2-1-5 and surface 2-2-5 are exit surfaces , Surface 2-1-6, Surface 2-1-7, Surface 2-1-8, Surface 2-2-6, Surface 2-2-7, Surface 2-2-8 are the incident surfaces.
  • the light beam emitted by the light emitter group 1-1 passes through the incident surface 2-1-6 and enters the reflective surface 2-1-1 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-4, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-2 passes through the incident surface 2-1-7, and enters the reflective surface 2-1-2 of the prism 2-1.
  • the beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-4, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beam emitted by the light emitter group 1-3 passes through the incident surface 2-1-8, and is incident on the reflective surface 2-1-3 of the prism 2-1.
  • the light beam is deflected by 90° and enters the reflective surface of the prism 2-1 On 2-1-4, the beam is deflected by 90° and exits through the exit surface 2-1-5.
  • the light beams emitted by the illuminator groups 1-4 are directly emitted.
  • the light beam emitted by the illuminator group 1-5 passes through the incident surface 2-2-8 and enters the reflective surface 2-2-3 of the prism 2-2. After the beam is deflected by 90°, it enters the reflective surface of the prism 2-2.
  • the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the light beam emitted by the illuminator group 1-6 passes through the incident surface 2-2-7 and enters the reflective surface 2-2-2 of the prism 2-2. After the beam is deflected by 90°, it enters the reflective surface of the prism 2-2
  • the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the light beam emitted by the illuminator group 1-7 passes through the incident surface 2-2-6 and enters the reflective surface 2-2-1 of the prism 2-2. After the beam is deflected by 90°, it enters the reflective surface of the prism 2-2.
  • the beam passes through the exit surface 2-2-5 and exits after being deflected by 90°.
  • the emitted light beams are parallel to each other. Compared with the incident light, the interval between the emitted light beams is reduced and concentrated in the middle of the light emitter group 1-3 and the light emitter group 1-5.
  • a light source system includes a light emitting module 1 and a prism group 2 and a vertical prism group 3.
  • the prism group 2 horizontally compresses the light beam emitted by the light-emitting module 1
  • a pair of vertical prism groups 3 are placed in front of the prism group 2, and the upper and lower reflection surfaces of the vertical prism group 3 are used for longitudinal direction of the beam emitted from the prism group 2 Compressed, the aspect ratio of the total beam after exiting is changed.
  • the prism and the light-emitting module can also be moved or rotated within a certain range, and the exit position of the final light beam can be adjusted by changing the angle and position of the reflecting surface, thereby adjusting the exit beam interval or aspect ratio .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Projection Apparatus (AREA)

Abstract

一种光源系统，包括发光模组（1）和棱镜组（2，3），棱镜组（2，3）置于发光模组（1）的光束出射口前，棱镜组（2，3）包含若干个棱镜，棱镜组（2，3）中光束入射棱镜的面为入射面（2-1-6，2-1-7，2-1-8，2-2-6，2-2-7，2-2-8），棱镜组（2，3）中光束与棱镜表面接触后发生全反射的面为反射面（2-1-1，2-1-2，2-1-3，2-1-4，2-2-1，2-2-2，2-2-3，2-2-4），棱镜组（2，3）中光束射出棱镜的面为出射面（2-1-5，2-2-5），入射光束垂直于入射面（2-1-6，2-1-7，2-1-8，2-2-6，2-2-7，2-2-8），光束在反射面（2-1-1，2-1-2，2-1-3，2-1-4，2-2-1，2-2-2，2-2-3，2-2-4）上的入射角大于临界角，光束与棱镜组（2，3）中两个或多个反射面（2-1-1，2-1-2，2-1-3，2-1-4，2-2-1，2-2-2，2-2-3，2-2-4）发生全反射直至出射，出射光束垂直于棱镜出射面（2-1-5，2-2-5），通过棱镜组（2，3）后的总出射光束在特定方向上尺寸压缩。该光源系统通过棱镜组（2，3）后光束汇聚，强度增大，调整反射面（2-1-1，2-1-2，2-1-3，2-1-4，2-2-1，2-2-2，2-2-3，2-2-4）角度可改变最终的出射光束的位置，操作灵活多变，具有非常强的实用性。

Description

一种光源系统 技术领域
本发明涉及光源技术领域，更具体地，涉及一种光源系统。
背景技术
激光和LED光源具有稳定性高的优势，激光器和LED芯片是较为理想的光源发生器，但是单颗发光器功率有限，目前商用的半导体激光器只能做到毫瓦级别，而LED光源的集中性较弱，若想获取更大功率的光束输出，只能用若干个激光管或LED准直后的光束进行耦合。受限于单颗发光器的封装尺寸，激光管或发光二极管无法密集地拼装成一体，会导致各光束互相分离。因此需要使用光源的拘束系统对光束进行整体压缩。部分发光模组整体光束纵横比不等于1，则需使用柱镜拘束系统对光束进行单方向的压缩。如附图1所示，柱镜拘束系统包含一个正光焦度的柱透镜和一个负光焦度的柱透镜，其焦距重合，使得通过该系统后的光束仍互相平行，光束之间的间隔减小。但该拘束系统柱镜的间隔较大，光路较长，光源系统尺寸较大，大大降低了其实用性。
技术问题
本发明的目的在于提供一种光源系统，以解决上述背景技术中提出的问题。
问题的解决方案
技术解决方案
为实现上述目的，本发明提供如下技术方案：
本发明提供一种光源系统，包括发光模组和棱镜组，所述棱镜组置于发光模组的光束出射口前，所述棱镜组包含若干个棱镜，所述棱镜组中光束入射棱镜的面为入射面，所述棱镜组中光束与棱镜表面接触后发生全反射的面为反射面，所述棱镜组中光束射出棱镜的面为出射面，入射光束垂直于入射面，所述光束在反射面上的入射角大于临界角，所述光束与棱镜组中两个或多个反射面发生全反射直至出射，出射光束垂直于棱镜出射面，通过棱镜组后的总出射光束在特定方向上尺寸压缩。临界角大小根据棱镜材质决定，入射角大于等于临界角 时入射光线发生全反射。光束垂直穿过入射面后光路不发生改变，避免出现折射或产生杂光干扰光路。
所述发光模组由多个发光器组组成，所述发光模组包括激光光源模组和/或LED光源模组，所述激光光源模组包含多个激光器，所述LED光源模组包含多个LED芯片。
所述棱镜组的棱镜在发光模组前呈上下和/或左右和/或旋转对称放置。发光模组上下和/或左右和/或旋转对称两端的光束都可以经过棱镜组的反射作用而朝中心方向偏移。
所述棱镜组的棱镜中用于反射同一光束的两个反射面互相平行；所述棱镜组的棱镜中入射面与出射面互相平行。光束穿过入射面前后光路不发生改变，光束穿过出射面前后光路也不发生改变。
所述光束在棱镜组内传播不与除反射面外的其他棱镜表面相接触，光线在内部穿梭的时候不与棱镜表面接触，避免发生光线折射。
所述发光模组的各发光器组发射的相互平行的光束射入多个相匹配的入射面上，最终的出射光束间相互平行。
所述棱镜与发光模组之间在一定范围内移动或转动角度时，通过反射面角度和位置的改变调整最终光束的出射位置，进而调节出射光束间隔或纵横比。反射面大小可根据实际需求进行设计，反射面与光束相匹配放置，通过反射面角度和位置的改变灵活调整最终光束的出射位置。
所述发光模组的发光器组个数为奇数，位于正中间的一个或一组光束不经过棱镜组，直接出射，位于周围的发光器组的出射光束通过棱镜后出射。周围的出射光束经反射作用后均往中心靠拢，压缩了出射光束的光源尺寸范围。
所述发光模组的发光器组个数为偶数，发光模组的所有出射光束均通过棱镜后出射，或位于正中间的光束只穿过棱镜的入射面和出射面出射，位于周围的发光器组的出射光束通过棱镜后出射。根据出射光束尺寸的要求，可灵活选择出射方式。
本发明的进一步方案是在所述发光模组所在平面前，先使用一组入射面与发光模组所在平面相平行的棱镜组对光源进行压缩，其第一次经反射面反射后的光 束所在平面至少有一个与发光模组所在平面相平行，后再放置一垂直棱镜组，该棱镜组入射面与发光模组所在平面相平行同时第一次经反射面反射后的光束与前一棱镜组第一次经反射面反射后的光束相互垂直，且其第一次经反射面反射后的光束所在平面至少有一个与发光模组所在平面相平行，所述垂直棱镜组对光束进行另一方向的压缩，以从整体上压缩出射光束的尺寸，达到所需的出射光纵横比。即所述发光模组为阵列排列时，利用棱镜组在发光模组平行平面的横轴上压缩后，利用垂直棱镜组在纵轴上进行压缩，使光束从棱镜出射时边长均匀，而非长条形。同一发光模组横纵轴方向的压缩距离比例通常与横纵轴方向发光器组排布数量比例成正比。
特别地，本发明的其中一种优选方案是所述棱镜组用于压缩发光模组的光束时，光束在反射面上的入射角是45°，所述棱镜组的棱镜在光路纵截面上为平行四边形或由多个平行四边形拼接形成的多边形。更优选地，所述平行四边形为菱形。发光模组的各发光器组发射的相互平行的光束射入反射面上，反射后的所有光束进入另一反射面上，反射角为45°，最终的出射光束间相互平行，光束间距减小。横截面是指与光束本身垂直的平面。
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：
本发明所述的光源系统，取消了折射透镜组，改用反射棱镜组，光路尺寸缩短，整体光源系统的尺寸得到缩小；
本发明所述的光源系统，周围的出射光束经棱镜组的反射作用后均往中心靠拢，光束得到汇聚，出射光束的强度增大；
本发明所述的光源系统，反射面与光束相匹配放置，可通过改变反射面角度，从而调整最终出射的光束的位置，操作灵活多变，具有非常强的实用性。
对附图的简要说明
附图说明
图1为现有技术的光路拘束系统结构示意图。
图2为本发明光源系统实施例1的纵截面结构示意图。
图3为本发明光源系统实施例1的立体结构示意图。
图4为本发明光源系统实施例2的纵截面结构示意图。
图5为本发明光源系统实施例3的立体结构示意图。
图6为本发明光源系统实施例4的纵截面结构示意图。
图7为本发明光源系统实施例5的纵截面结构示意图。
图8为本发明光源系统实施例6的纵截面结构示意图。
图9为本发明光源系统实施例6的立体结构示意图。
图10为本发明光源系统实施例7的纵截面结构示意图。
图11为本发明光源系统实施例8的纵截面结构示意图
图12为本发明光源系统实施例9的立体结构示意图。
图中包括发光模组1、棱镜组2、垂直棱镜组3、发光器组1-1、发光器组1-2、发光器组1-3、发光器组1-4、发光器组1-5、发光器组1-6、发光器组1-7、反射面2-1-1、反射面2-1-2、反射面2-1-3、反射面2-1-4、反射面2-2-1、反射面2-2-2、反射面2-2-3、反射面2-2-4、出射面2-1-5、出射面2-2-5、入射面2-1-6、入射面2-1-7、入射面2-1-8、入射面2-2-6、入射面2-2-7、入射面2-2-8。
实施该发明的最佳实施例
本发明的最佳实施方式
实施例1
如图2所示，一种光源系统，包括发光模组和棱镜组，此时发光器组的个数为奇数。发光模组由3个发光器组并列拼装组成，棱镜组由2个对称放置的棱镜组成，其中面2-1-1、面2-1-2、面2-2-1、面2-2-2是反射面，面2-1-5、面2-2-5是出射面，面2-1-6、面2-2-6是入射面。发光器组1-1发射的光束穿过入射面2-1-6射入反射面2-1-1上，光束发生90°偏转后射入棱镜2-1的反射面2-1-2上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-2发射的光束直接出射。发光器组1-3发射的光束穿过入射面2-2-6射入反射面2-2-1上，光束发生90°偏转后射入棱镜2-2的反射面2-2-2上，光束再经过90°偏转后穿过出射面2-2-5出射。出射后的光束相互平行，相比入射光，出射的光束间的间隔缩小。图3为此实施例1的光源系统的立体结构示意图。
发明实施例
本发明的实施方式
实施例2
如图4所示，一种光源系统，包括发光模组和棱镜组，此时发光器组的个数为偶数。发光模组由4个发光器组并列拼装组成，棱镜组由2个对称放置的棱镜组成，其中面2-1-1、面2-1-2、面2-1-3、面2-2-1、面2-2-2、面2-2-3是反射面，面2-1-5、面2-2-5是出射面，面2-1-6、面2-1-7、面2-2-6、面2-2-7是入射面。发光器组1-1发射的光束穿过入射面2-1-6，射入棱镜2-1的反射面2-1-1上，光束发生90°偏转后射入棱镜2-1的反射面2-1-3上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-2发射的光束穿过入射面2-1-7，射入棱镜2-1的反射面2-1-2上，光束发生90°偏转后射入棱镜2-1的反射面2-1-3上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-3发射的光束穿过入射面2-2-7，射入棱镜2-2的反射面2-2-2上，光束发生90°偏转后射入棱镜2-2的反射面2-2-3上，光束再经过90°偏转后穿过出射面2-2-5出射。发光器组1-4发射的光束穿过入射面2-2-6，射入棱镜2-2的反射面2-2-1上，光束发生90°偏转后射入棱镜2-2的反射面2-2-3上，光束再经过90°偏转后穿过出射面2-2-5出射。出射后的光束相互平行，相比入射光，出射的光束间的间隔缩小且集中在发光器组1-2和发光器组1-3中间。
实施例3
如图5所示，一种光源系统，包括发光模组1和棱镜组2，当发光模组1由4个发光器组并列拼装组成时，棱镜组2由2个对称放置的棱镜组成，位于正中间的四个光束穿过棱镜的入射面和出射面直接出射，位于周围的发光器组的出射光束与棱镜中的反射面接触后发生两次全反射后出射。
实施例4
如图6所示，一种光源系统，包括发光模组和棱镜组，此时发光器组的个数为奇数。发光模组由5个发光器组并列拼装组成，棱镜组由2个对称放置的棱镜组成，其中面2-1-1、面2-1-2、面2-1-3、面2-1-4、面2-2-1、面2-2-2、面2-2-3、面2-2-4是反射面，面2-1-5、面2-2-5是出射面，面2-1-6、面2-1-7、面2-2- 6、面2-2-7是入射面。发光器组1-1发射的光束穿过入射面2-1-6，射入棱镜2-1的反射面2-1-1上，光束发生钝角偏转后射入棱镜2-1的反射面2-1-3上，光束再经过钝角偏转后穿过出射面2-1-5出射。发光器组1-2发射的光束穿过入射面2-1-7，射入棱镜2-1的反射面2-1-2上，光束发生锐角偏转后射入棱镜2-1的反射面2-1-4上，光束再经过锐角偏转后穿过出射面2-1-5出射。发光器组1-3发射的光束直接出射。发光器组1-4发射的光束穿过入射面2-2-7，射入棱镜2-2的反射面2-2-2上，光束发生锐角偏转后射入棱镜2-2的反射面2-2-4上，光束再经过锐角偏转后穿过出射面2-2-5出射。发光器组1-5发射的光束穿过入射面2-2-6，射入棱镜2-2的反射面2-2-1上，光束发生钝角偏转后射入棱镜2-2的反射面2-2-3上，光束再经过钝角偏转后穿过出射面2-2-5出射。出射后的光束相互平行，相比入射光，出射的光束间的间隔缩小且集中在发光器组1-2和发光器组1-4中间。
实施例5
如图7所示，一种光源系统，包括发光模组和棱镜组，此时发光器组的个数为奇数。发光模组由5个发光器组并列拼装组成，棱镜组由2个对称放置的棱镜组成，其中面2-1-1、面2-1-2、面2-1-3、面2-1-4、面2-2-1、面2-2-2、面2-2-3、面2-2-4是反射面，面2-1-5、面2-2-5是出射面，面2-1-6、面2-2-6是入射面。发光器组1-1发射的光束穿过入射面2-1-6，射入棱镜2-1的反射面2-1-1上，光束发生锐角偏转后射入棱镜2-1的反射面2-1-3上，光束再经过锐角偏转后穿过出射面2-1-5出射。发光器组1-2发射的光束穿过入射面2-1-6，射入棱镜2-1的反射面2-1-2上，光束发生钝角偏转后射入棱镜2-1的反射面2-1-4上，光束再经过钝角偏转后穿过出射面2-1-5出射。发光器组1-3发射的光束直接出射。发光器组1-4发射的光束穿过入射面2-2-6，射入棱镜2-2的反射面2-2-2上，光束发生钝角偏转后射入棱镜2-2的反射面2-2-4上，光束再经过钝角偏转后穿过出射面2-2-5出射。发光器组1-5发射的光束穿过入射面2-2-6，射入棱镜2-2的反射面2-2-1上，光束发生锐角偏转后射入棱镜2-2的反射面2-2-3上，光束再经过锐角偏转后穿过出射面2-2-5出射。出射后的光束相互平行，相比入射光，出射的光束间的间隔缩小且集中在发光器组1-2和发光器组1-4中间。
实施例6
如图8所示，一种光源系统，包括发光模组和棱镜组，此时发光器组的个数为奇数。发光模组由5个发光器组并列拼装组成，棱镜组由2个对称放置的棱镜组成，其中面2-1-1、面2-1-2、面2-1-3、面2-2-1、面2-2-2、面2-2-3是反射面，面2-1-5、面2-2-5是出射面，面2-1-6、面2-1-7、面2-2-6、面2-2-7是入射面。发光器组1-1发射的光束穿过入射面2-1-6，射入棱镜2-1的反射面2-1-1上，光束发生90°偏转后射入棱镜2-1的反射面2-1-3上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-2发射的光束穿过入射面2-1-7，射入棱镜2-1的反射面2-1-2上，光束发生90°偏转后射入棱镜2-1的反射面2-1-3上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-3发射的光束直接出射。发光器组1-4发射的光束穿过入射面2-2-7，射入棱镜2-2的反射面2-2-2上，光束发生90°偏转后射入棱镜2-2的反射面2-2-3上，光束再经过90°偏转后穿过出射面2-2-5出射。发光器组1-5发射的光束穿过入射面2-2-6，射入棱镜2-2的反射面2-2-1上，光束发生90°偏转后射入棱镜2-2的反射面2-2-3上，光束再经过90°偏转后穿过出射面2-2-5出射。出射后的光束相互平行，相比入射光，出射的光束间的间隔缩小且集中在发光器组1-2和发光器组1-4中间。图9为此实施例6的光源系统的立体结构示意图。
实施例7
如图10所示，一种光源系统，包括发光模组和棱镜组，此时发光器组的个数为偶数。发光模组由6个发光器组并列拼装组成，棱镜组由2个对称放置的棱镜组成，其中面2-1-1、面2-1-2、面2-1-3、面2-1-4、面2-2-1、面2-2-2、面2-2-3、面2-2-4是反射面，面2-1-5、面2-2-5是出射面，面2-1-6、面2-1-7、面2-1-8、面2-2-6、面2-2-7、面2-2-8是入射面。发光器组1-1发射的光束穿过入射面2-1-6，射入棱镜2-1的反射面2-1-1上，光束发生90°偏转后射入棱镜2-1的反射面2-1-4上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-2发射的光束穿过入射面2-1-7，射入棱镜2-1的反射面2-1-2上，光束发生90°偏转后射入棱镜2-1的反射面2-1-4上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-3发射的光束穿过入射面2-1-8，射入棱镜2-1的反射面2-1-3上，光束发生90°偏转后射入棱镜2-1的反射面2-1-4上，光束再经过90°偏转后穿过 出射面2-1-5出射。发光器组1-4发射的光束穿过入射面2-2-8，射入棱镜2-2的反射面2-2-3上，光束发生90°偏转后射入棱镜2-2的反射面2-2-4上，光束再经过90°偏转后穿过出射面2-2-5出射。发光器组1-5发射的光束穿过入射面2-2-7，射入棱镜2-2的反射面2-2-2上，光束发生90°偏转后射入棱镜2-2的反射面2-2-4上，光束再经过90°偏转后穿过出射面2-2-5出射。发光器组1-6发射的光束穿过入射面2-2-6，射入棱镜2-2的反射面2-2-1上，光束发生90°偏转后射入棱镜2-2的反射面2-2-4上，光束再经过90°偏转后穿过出射面2-2-5出射。出射后的光束相互平行，相比入射光，出射的光束间的间隔缩小且集中在发光器组1-3和发光器组1-4中间。
实施例8
如图11所示，一种光源系统，包括发光模组和棱镜组，此时发光器组的个数为奇数。发光模组由7个发光器组并列拼装组成，棱镜组由2个对称放置的棱镜组成，其中面2-1-1、面2-1-2、面2-1-3、面2-1-4、面2-2-1、面2-2-2、面2-2-3、面2-2-4是反射面，面2-1-5、面2-2-5是出射面，面2-1-6、面2-1-7、面2-1-8、面2-2-6、面2-2-7、面2-2-8是入射面。发光器组1-1发射的光束穿过入射面2-1-6，射入棱镜2-1的反射面2-1-1上，光束发生90°偏转后射入棱镜2-1的反射面2-1-4上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-2发射的光束穿过入射面2-1-7，射入棱镜2-1的反射面2-1-2上，光束发生90°偏转后射入棱镜2-1的反射面2-1-4上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-3发射的光束穿过入射面2-1-8，射入棱镜2-1的反射面2-1-3上，光束发生90°偏转后射入棱镜2-1的反射面2-1-4上，光束再经过90°偏转后穿过出射面2-1-5出射。发光器组1-4发射的光束直接出射。发光器组1-5发射的光束穿过入射面2-2-8，射入棱镜2-2的反射面2-2-3上，光束发生90°偏转后射入棱镜2-2的反射面2-2-4上，光束再经过90°偏转后穿过出射面2-2-5出射。发光器组1-6发射的光束穿过入射面2-2-7，射入棱镜2-2的反射面2-2-2上，光束发生90°偏转后射入棱镜2-2的反射面2-2-4上，光束再经过90°偏转后穿过出射面2-2-5出射。发光器组1-7发射的光束穿过入射面2-2-6，射入棱镜2-2的反射面2-2-1上，光束发生90°偏转后射入棱镜2-2的反射面2-2-4上，光束再经过90°偏 转后穿过出射面2-2-5出射。出射后的光束相互平行，相比入射光，出射的光束间的间隔缩小且集中在发光器组1-3和发光器组1-5中间。
实施例9
如图12所示，一种光源系统，包括发光模组1和棱镜组2和垂直棱镜组3。棱镜组2对发光模组1发射的光束进行横向压缩后，在棱镜组2前放置一对垂直棱镜组3，利用垂直棱镜组3的上下两个反射面对棱镜组2中出射的光束进行纵向压缩，出射后的总光束纵横比得到改变。
上述这些实施例中，所述棱镜与发光模组之间还可以在一定范围内移动或转动角度，通过反射面角度和位置的改变来调整最终光束的出射位置，进而调节出射光束间隔或纵横比。
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，均应包含在本发明权利要求的保护范围之内。

Claims (11)

  1. 一种光源系统，其特征在于：包括发光模组和棱镜组，所述棱镜组置于发光模组的光束出射口前，所述棱镜组包含若干个棱镜，所述棱镜组中光束入射棱镜的面为入射面，所述棱镜组中光束与棱镜表面接触后发生全反射的面为反射面，所述棱镜组中光束射出棱镜的面为出射面，入射光束垂直于入射面，所述光束在反射面上的入射角大于临界角，所述光束与棱镜组中两个或多个反射面发生全反射直至出射，出射光束垂直于棱镜出射面，通过棱镜组后的总出射光束在特定方向上尺寸压缩。
  2. 根据权利要求1所述的光源系统，其特征在于，所述发光模组由多个发光器组组成，所述发光模组包括激光光源模组和/或LED光源模组，所述激光光源模组包含多个激光器，所述LED光源模组包含多个LED芯片。
  3. 根据权利要求1所述的光源系统，其特征在于：所述棱镜组的棱镜在发光模组前呈上下和/或左右和/或旋转对称放置。
  4. 根据权利要求1所述的光源系统，其特征在于：所述棱镜组的棱镜中用于反射同一光束的两个反射面互相平行；所述棱镜组的棱镜中入射面与出射面互相平行。
  5. 根据权利要求1所述的光源系统，其特征在于：所述光束在棱镜组内传播不与除反射面外的其他棱镜表面相接触。
  6. 根据权利要求1所述的光源系统，其特征在于：所述发光模组的各发光器组发射的相互平行的光束射入多个相匹配的入射面上，最终的出射光束间相互平行。
  7. 根据权利要求1所述的光源系统，其特征在于：所述棱镜与发光模组之间在一定范围内移动或转动角度时，通过反射面角度和位置的改变调整最终光束的出射位置，进而调节出射光束间隔或纵横比。
  8. 根据权利要求2所述的光源系统，其特征在于：所述发光模组的发 光器组个数为奇数，位于正中间的一个或一组光束不经过棱镜组，直接出射，位于周围的发光器组的出射光束通过棱镜后出射。
  9. 根据权利要求2所述的光源系统，其特征在于：所述发光模组的发光器组个数为偶数，发光模组的所有出射光束均通过棱镜后出射，或位于正中间的光束只穿过棱镜的入射面和出射面出射，位于周围的发光器组的出射光束通过棱镜后出射。
  10. 根据权利要求1所述的光源系统，其特征在于：在所述发光模组所在平面前，先使用一组入射面与发光模组所在平面相平行的棱镜组对光源进行压缩，其第一次经反射面反射后的光束所在平面至少有一个与发光模组所在平面相平行，后再放置一垂直棱镜组，该棱镜组入射面与发光模组所在平面相平行同时第一次经反射面反射后的光束与前一棱镜组第一次经反射面反射后的光束相互垂直，且其第一次经反射面反射后的光束所在平面至少有一个与发光模组所在平面相平行，所述垂直棱镜组对光束进行另一方向的压缩，以从整体上压缩出射光束的尺寸，达到所需的出射光纵横比。
  11. 根据权利要求1所述的光源系统，其特征在于：所述棱镜组用于压缩发光模组的光束时，光束在反射面上的入射角是45°，所述棱镜组的棱镜在光路纵截面上为平行四边形或由多个平行四边形拼接形成的多边形，发光模组的各发光器组发射的相互平行的光束射入反射面上，反射后的所有光束进入另一反射面上，反射角为45°，最终的出射光束间相互平行，光束间距减小。
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