WO2021093566A1 - Light guide assembly and optical system - Google Patents

Light guide assembly and optical system Download PDF

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Publication number
WO2021093566A1
WO2021093566A1 PCT/CN2020/123807 CN2020123807W WO2021093566A1 WO 2021093566 A1 WO2021093566 A1 WO 2021093566A1 CN 2020123807 W CN2020123807 W CN 2020123807W WO 2021093566 A1 WO2021093566 A1 WO 2021093566A1
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WO
WIPO (PCT)
Prior art keywords
light guide
guide rod
light
rotating part
guide assembly
Prior art date
Application number
PCT/CN2020/123807
Other languages
French (fr)
Chinese (zh)
Inventor
陈兴加
陈彬
Original Assignee
深圳市绎立锐光科技开发有限公司
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Filing date
Publication date
Application filed by 深圳市绎立锐光科技开发有限公司 filed Critical 深圳市绎立锐光科技开发有限公司
Publication of WO2021093566A1 publication Critical patent/WO2021093566A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • 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
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems

Definitions

  • the present invention relates to the field of optics, in particular to a light guide assembly and an optical system.
  • the illumination spot emitted by the light source is generally required to be a uniform circular spot.
  • the existing homogenizing elements include a square light guide rod and a round light guide rod.
  • the cross section of the square light guide rod perpendicular to the center line of the light guide rod is square, and the cross section of the round light guide rod perpendicular to the center line of the light guide rod is Round, the uniform light effect of the square light guide rod is better than that of the round light guide rod.
  • a square light guide rod is generally used for uniform light to obtain a uniform illumination spot.
  • one way is to use a square-to-round integrated light guide rod, or a combination of a square light guide rod and a round light guide rod.
  • the main problem is that the light spot will have a pattern of light and dark.
  • the method is to set a circular pattern sheet on the exit light path of the light source.
  • the main problem is that the light utilization rate is low.
  • the invention provides a light guide component and an optical system, which can convert a non-circular light spot into a circular light spot with a larger area and better uniform light effect, and meet application requirements.
  • an embodiment of the present invention provides a light guide assembly, including a light guide rod, a rotating part sleeved on the outside of the light guide rod and fixedly connected to the light guide rod, and a driving assembly that drives the rotating part to rotate, the light guide rod It is used for homogenizing light.
  • the rotating part rotates, the light guide rod is driven to rotate around an axis parallel to the long axis direction of the light guide rod, and the light derived from the light guide rod forms a circular spot when the light guide rod rotates.
  • the light guide assembly further includes a bearing, which is sleeved on the outside of the rotating part and is rotatably connected with the rotating part, and the bearing remains stationary when the rotating part rotates.
  • the rotating part includes a rotating shell and a transmission device.
  • the rotating shell includes a shell and a fixing part arranged on the surface of the shell.
  • the shell forms an accommodating space, the light guide rod is accommodated in the accommodating space, and the fixing part is fixedly connected to the housing and the light guide.
  • the rod and the transmission device are sleeved on the outer surface of the rotating shell.
  • the transmission device includes a gear or a pulley, and the drive assembly drives the transmission device to rotate through gear meshing or a transmission belt.
  • the fixing member includes an elastic sheet, and the elastic sheet is pressed against the light guide rod.
  • the outer surface of the rotating shell is provided with at least one hook
  • the elastic piece is provided with an opening corresponding to the hook along a direction perpendicular to the central axis of the light guide rod, and the hook passes through the opening to buckle and fix the elastic piece.
  • the central axis of the light guide rod coincides with the central axis of the rotating part.
  • the central axis of the light guide rod and the central axis of the rotating part are parallel and do not coincide.
  • embodiments of the present invention also provide a light guide assembly, including a light guide rod, a rotating part sleeved on the outside of the light guide rod and fixedly connected to the light guide rod, and a driving assembly that drives the rotating part to rotate.
  • the rod is used for homogenizing light.
  • the rotating part includes an end in the direction of the long axis.
  • the drive assembly is arranged at the end. When the rotating part rotates, the light guide rod is driven to rotate around an axis parallel to the long axis of the light guide rod. The light derived during rotation forms a circular spot.
  • the end portion includes a bottom wall
  • the bottom wall includes an inner surface and an outer surface that face away from each other
  • the driving component abuts on the outer surface and is fixedly connected to the rotating portion
  • the light guide assembly further includes a fluorescent device, the fluorescent device is provided on the inner surface, and the light guide rod abuts against the fluorescent device.
  • the light guide assembly further includes a reflection device, the reflection device is arranged on the inner surface, and the light guide rod abuts against the reflection device.
  • the rotating part includes a heat dissipation structure, the heat dissipation mechanism is located on the outer surface, and the heat dissipation structure is a plurality of fan-like fins or spoiler posts.
  • an embodiment of the present invention also provides an optical system, including a light source and the above-mentioned light guide component, and the light guide component collects the light emitted by the light source.
  • the light guide assembly and the optical system provided by the present invention drive the light guide rod to rotate through the rotating part.
  • the light is reflected multiple times inside the light guide rod, and each reflection will form a virtual light source image, and the multiple reflections form a two-dimensional virtual light source matrix.
  • the non-circular light spot is transformed into a circular light spot with a larger area and better uniform light effect to meet application requirements.
  • Fig. 1 is a schematic structural diagram of a light guide assembly provided by an embodiment of the present invention.
  • Fig. 2 is a schematic diagram of a light guide rod of a light guide assembly provided by an embodiment of the present invention.
  • Fig. 3 is a schematic diagram of a light guide rod of a light guide assembly provided by another embodiment of the present invention.
  • Fig. 4 is a schematic diagram of a circular light spot emitted by the light guide assembly provided by the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the brightness of a circular light spot emitted by a light guide assembly provided by an embodiment of the present invention.
  • Fig. 6 is a schematic cross-sectional view of a light guide assembly provided by an embodiment of the present invention.
  • FIG. 7 is a schematic cross-sectional view of a light guide assembly provided by another embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a light guide assembly provided by an embodiment of the present invention performing eccentric rotation.
  • Fig. 9 is a schematic diagram of a light guide assembly provided by another embodiment of the present invention rotating through a conveyor belt.
  • Fig. 10 is a schematic structural diagram of an optical system provided by an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a light guide assembly provided by another embodiment of the present invention.
  • Fig. 12 is a schematic structural diagram of a light guide assembly provided by still another embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a heat dissipation structure of an optical system provided by an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of another heat dissipation structure of an optical system provided by an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of an optical system provided by another embodiment of the present invention.
  • Fig. 16 is a schematic structural diagram of an optical system provided by another embodiment of the present invention.
  • an embodiment of the present invention provides a light guide assembly 100.
  • the light guide assembly 100 includes a light guide rod 10, a rotating part 20, and a driving assembly 30.
  • the rotating part 20 is sleeved on the outside of the light guide rod 10 and is connected to the light guide rod.
  • the rod 10 is fixedly connected, and the driving assembly 30 drives the rotating part 20 to rotate.
  • the light guide rod 10 is used for homogenizing light.
  • the rotating part 20 rotates, the light guide rod 10 is driven to rotate around an axis X parallel to the long axis direction of the light guide rod 10.
  • the light guided by the light guide rod 10 when it rotates forms a circular light spot.
  • the axis X of the long axis direction of the light guide rod 10 coincides with the rotation axis of the rotating part 20, that is, the light guide rod 10 is arranged along the rotation axis of the rotating part 20.
  • the axis X of the long axis direction of the light guide rod 10 is parallel to and does not overlap the rotation axis of the rotating part 20, that is, the light guide rod 10 is eccentrically arranged inside the rotating part 20.
  • the light guide rod 10 is a solid structure, the light guide rod 10 along the two ends of the axis X, namely the first end surface 11 and the second end surface 12, the light guide rod 10 along the direction perpendicular to the axis X
  • the cross section is quadrilateral.
  • the cross section of the light guide rod 10 along the axial direction X may also be various polygons such as triangles, pentagons, hexagons, and octagons. According to many experiments and calculations, it is found that the light guide rod 10 with a polygonal cross section has a better uniform light effect and less light loss than a light guide rod with a circular cross section.
  • the light guide rod 10 may also be a hollow structure.
  • the light guide rod 10 has a center symmetric structure, and the light guide rod 10 is the same at the cross section perpendicular to the axial direction X.
  • the cross-section of the light guide rod 10a perpendicular to the axis direction Y can also be changed proportionally. For example, along the axis direction Y, the area of the first end surface 11a is larger than that of the second end surface. The area of 12a, the cross-section parallel to each other between the first end surface 11a and the second end surface 12a becomes uniformly smaller along the direction from the first end surface 11a to the second end surface 12a.
  • the cross-sectional area can also be non-uniformly larger, or the cross-sectional area at the second end 12a can also be larger than the cross-sectional area at the first end surface 11a. area.
  • the light homogenization principle of the light guide rod 10 is as follows: light is reflected multiple times inside the light guide rod 10, and each reflection will form a virtual light source image, and the multiple reflection virtual light source images form a two-dimensional virtual light source matrix, thereby making the light more uniform.
  • the light guide rod 10 with a non-circular cross-section is not rotated, the light derived from it will form a corresponding non-circular light spot, and the non-circular light spot can be transformed into a larger area and better uniform light effect when the light guide rod 10 rotates. Circular spot to meet application requirements.
  • the cross section of the light guide rod 10 is quadrilateral and the side length is 2a, referring to FIG. 4, as the light guide rod 10 rotates, numerous light spots are formed on the light exit surface of the light guide rod 10. The two spots overlap to form the final illumination spot.
  • the speed at which the human eye recognizes a coherent image is 24 frames per second, which is 1000 milliseconds/24 frames, which is about 40ms (milliseconds). If a coherent image reaches or exceeds this speed, the human eye will not A feeling of stuttering is formed, so when the rotation speed of the light guide rod 10 is higher than 24 rpm, a continuous circular illuminating spot can be formed under observation by the human eye.
  • the diameter of the circular light spot is the diameter of the circumscribed circle of the quadrilateral light spot, that is, 2 ⁇ 2a.
  • the light guide rod 10 with a quadrilateral cross-section expands the spot area of the original quadrilateral into the spot area of the circumscribed circle of the quadrilateral, thereby having better lighting and projection effects.
  • the diameter is 2a (between a on the left side of the 0 point on the horizontal axis and a on the right side). It is the overlap of multiple quadrilateral light spots.
  • the brightness of this part of the circular light spot is the same as that of the quadrilateral light spot.
  • the brightness ratio gradually decreases until it reaches zero.
  • the rotating part 20 may further include a bearing 27.
  • the bearing 27 is sleeved on the outside of the rotating part 20 and is rotatably connected with the rotating part 20.
  • the bearing 27 remains stationary.
  • the bearing 27 has an annular structure.
  • the number of the bearing 27 is two, and the two bearings 27 are respectively provided at both ends of the rotating part 20.
  • the light guide assembly 100 may further include a stationary housing 28, the stationary housing 28 includes an annular groove 281, and the bearing 27 is embedded in the annular groove 281. During the rotation of the rotating part 20, the bearing 27 slides relative to the stationary housing 28 in the annular groove 281.
  • the bearing 27 has an inner surface 271 and an outer surface 272.
  • the bearing 27 is sleeved on both ends of the rotating part 20 through the inner surface 271, and the outer surface 272 is screwed 273 is fixed to the stationary housing 28.
  • the rotating part 20 and the bearing 27 slide relatively, and the bearing 27 and the stationary housing 28 remain relatively stationary.
  • the arrangement of the bearing 27 and the stationary housing 28 can play the role of fixing and protecting the light guide assembly 100, avoiding other objects in the environment from affecting the high-speed rotating light guide assembly 100, and improving the stability and safety factor of the system.
  • the rotating part 20 includes a rotating shell 21 and a transmission device 23, and the transmission device 23 is sleeved on the outer surface of the rotating shell 21.
  • the rotating shell 21 has a hollow cylindrical structure.
  • the rotating shell 21 includes a shell 211 and a fixing member 212 provided on the surface of the shell 211.
  • the shell 211 forms a receiving space 213, and the light guide rod 10 is accommodated in the receiving space. 213.
  • the fixing member 212 is fixedly connected to the housing 211 and the light guide rod 10.
  • the structure of the accommodating space 213 matches the shape of the light guide rod 10 to stably place the light guide rod 10.
  • the way that the light guide rod 10 is accommodated in the accommodating space 211 not only can drive the light guide rod 10 to rotate by the rotating shell 21, but also can better fix the light guide rod 10.
  • the circumferential surfaces of the two ends of the hollow cylinder structure of the rotating shell 21 are complete, the circumferential surface of the middle section is hollowed out, and the circumferential surfaces of the two ends are connected by a plurality of cylinders, and the hollow part forms the receiving space 213.
  • the transmission device 23 is specifically a transmission gear with a saw-tooth structure on the outer periphery, and the transmission device 23 rotates in a gear transmission manner. Specifically, the transmission device 23 is driven to rotate by the driving assembly 30 as a passive gear.
  • the driving assembly 30 includes a driving wheel 31, and the driving wheel 31 is in meshing connection with the transmission device 23.
  • the axis X of the long axis direction of the light guide rod 10 coincides with the rotation axis of the rotating part 20, and the number of transmission gears is two, which are respectively sleeved on the circumferential surfaces of the two ends of the rotating shell 21. In the present invention In other embodiments, the number of transmission gears may also be one.
  • the transmission device 23a is a belt pulley, and the transmission device 23a rotates in a belt drive manner.
  • the outer peripheral surface of the transmission device 23a is provided with a transmission belt groove, and the driving assembly 30a includes a turntable.
  • the turntable is connected to the transmission device 23a through a transmission belt 281.
  • the turntable is used as a driving wheel to drive the transmission device 23a to rotate through the transmission belt 281.
  • the fixing member 212 includes an elastic sheet 2121, and the elastic sheet 2121 is pressed against the light guide rod 10.
  • the outer surface of the rotating shell 21 is provided with at least one hook 215
  • the elastic sheet 2121 is provided with an opening 2122 corresponding to the hook 215 along an axis perpendicular to the long axis direction of the light guide rod 10, and the hook 215 passes through the opening 2122 to be buckled and fixed.
  • Shrapnel 2121 The elastic sheet 2121 is arranged around the outer circumference of the light guide rod 10. The elastic sheet 2121 can firmly combine the light guide rod 10 and the rotating shell 21 to prevent the light guide rod 10 and the rotating shell 21 from being separated during the high-speed rotation of the light guide assembly 100, and improve the overall stability of the light guide assembly 100.
  • the fixing member 212 may also adopt other structures, such as a glue strip or an elastic contraction device to fix the light guide rod 10 and the rotating part 20.
  • an embodiment of the present invention further provides an optical system 200, which is a transmissive optical system.
  • the optical system 200 includes a light source 40 and a light guide assembly 100.
  • the light guide assembly 100 receives the light emitted by the light source 40, homogenizes it, and derives a circular light spot when rotating.
  • the optical system 200 further includes a condensing lens 50 located on the optical path between the light source 40 and the light guide assembly 100, and the condensing lens 50 is used to collect and condense the light emitted by the light source 40.
  • a receiving screen 90 is also provided in FIG. 9, and the light emitted by the light source 40 forms a circular light spot on the receiving screen 90. It is well known that the presence or absence of the receiving screen 90 will not affect the light output effect of the optical system 100. In other embodiments of the present invention, the receiving screen 90 may not be provided.
  • the light emitted by the light source 40 is condensed on the light entrance surface of the light guide assembly 100 by the condensing lens 50.
  • the light guide assembly 100 rotates under the driving of an external motor, and countless square spots are formed on the light exit surface of the light guide assembly 100. The light spots overlap to form a circular light spot.
  • the transmissive optical system 200 has a simple structure and can form a circular light spot with a good uniform light effect, and has a wide range of applications.
  • an embodiment of the present invention also provides a light guide assembly 300
  • the light guide assembly 300 includes a light guide rod 10a, a rotating part 320 sleeved on the outside of the light guide rod 10a and fixedly connected to the light guide rod 10a, and The driving assembly 330 that drives the rotating part 320 to rotate.
  • the light guide rod 10a is used for homogenizing light.
  • the rotating part 320 includes an end 321 located in the long axis direction.
  • the driving assembly 330 is arranged at the end 321.
  • the light guide rod When the rotating part 320 rotates, the light guide rod is driven 10a rotates around an axis Y parallel to the long axis direction of the light guide rod 10a, and the light derived from the light guide rod 10a forms a circular spot when it rotates.
  • the drive assembly 330 includes a motor 3301 and a drive shaft 3302.
  • the drive shaft 3302 and the motor 3301 are an integral rotating structure, that is, the motor 3301 and the drive shaft 3302 are fixedly connected and can move together, thereby effectively avoiding other combinations.
  • the meshing mode there are problems of meshing accuracy and concentricity between multiple rotating parts.
  • the rotating part 320 has high integration, no redundant rotating parts, and the rotating part 320 has good symmetry, which will not cause serious problems.
  • the rotation balance problem is a rotation balance problem.
  • the rotating part 320 includes a rotating shell 321.
  • the rotating shell 321 has a hollow cylindrical structure.
  • the end 321 includes a bottom wall 322.
  • the bottom wall 322 includes an inner surface 3221 and an outer surface 3222 that are away from each other.
  • the drive assembly 330 abuts It is connected to the outer surface 3222 and fixedly connected to the rotating part 320.
  • the light guide assembly 300 further includes a fluorescent device 340, the fluorescent device 340 is disposed on the inner surface 3221, and the light guide rod 10 a abuts against the fluorescent device 340.
  • the fluorescent device 340 is a film-like structure composed of fluorescent materials, which emits fluorescence under the excitation of the light beam.
  • the fluorescent device 340 generates heat during the light conversion process. If the fluorescent device 340 cannot dissipate heat in time, the fluorescent device 340 will work The temperature gradually rises, and the fluorescence conversion efficiency drops sharply after a certain temperature. The increase in thermal power consumption causes a vicious circle, and finally fails at extreme operating temperatures.
  • the fluorescent device 340 is further a fluorescent film with a scattering function, which can dissipate part of the light beam and reduce the accumulation of heat.
  • the fluorescent device 340 may be formed by mixing fluorescent powder and its carrier.
  • the carrier may be glue, glass, etc.
  • the fluorescent powder may be, for example, yellow fluorescent powder, green fluorescent powder, red fluorescent powder, or several types of fluorescent powder.
  • the wavelength of the light emitted by the light source is converted by exciting the phosphor to form the illuminating light.
  • a reflective layer is provided between the fluorescent device 340 and the inner surface 3221, and the reflective layer is a metal reflective layer. Or non-metallic reflective layer.
  • the fluorescent device 340 may also be a metal reflective material, such as silver, aluminum, gold, chromium, nickel, copper, platinum, rhodium, and silver/aluminum, gold/silver, gold/aluminum, gold/ At least one material such as silver/aluminum, or a composite material formed of two or more, can also be non-metallic reflective materials, such as silicon oxide, magnesium fluoride, zinc sulfide, tantalum oxide, cerium oxide, zirconium oxide, and aluminum oxide At least one material or a composite material formed of two or more kinds or a metal-non-metal composite reflective material, and a composite material formed of two or more materials of the above-mentioned metal and non-metal.
  • a metal reflective material such as silver, aluminum, gold, chromium, nickel, copper, platinum, rhodium, and silver/aluminum, gold/silver, gold/aluminum, gold/ At least one material such as silver/aluminum,
  • a thermal conductive paste may be coated between the fluorescent device 340 and the inner surface 3221 to reduce the contact thermal resistance between the fluorescent device 340 and the fluorescent device 340.
  • the light guide assembly 300 can also replace the fluorescent device 340 with a reflective device 350, the reflective device 350 is provided on the inner surface 3221, and the light guide rod 10a abuts against the reflective device 350 to reflect The device 350 is used to reflect the received light.
  • the light guide rod 10a and the reflecting device 350 may also be separated by a certain distance.
  • the rotating part 320 may further include a heat dissipation structure 326, which is located on the outer surface 3222, and is used for dissipating heat generated by the system and cooling the rotating shell.
  • the heat dissipation structure 326 is a plurality of fan-like fins 3261.
  • the heat dissipation structure 326 a may also be a plurality of spoiler columns 3262. The spoiler column 3262 and the fan-like structure fin 3261 can be mixedly arranged on the outer surface 3222.
  • the heat dissipation structures 326 and 326a are used to enhance nearby fluid disturbance during rotation and increase the convective heat transfer coefficient, so as to achieve the purpose of enhancing heat transfer without adding additional heat dissipation elements.
  • an embodiment of the present invention also provides an optical system 400, which is a reflective optical system.
  • the optical system 400 includes a light source 440 and a light guide assembly 500.
  • the light guide assembly 500 includes a fluorescent device 470.
  • the fluorescent device 470 is spaced a certain distance from the light guide rod 510, and the light guide assembly 500 receives the light emitted by the light source 440.
  • the optical system 400 further includes a light splitting and light combining element 460, and the light splitting and light combining element 460 is located on the optical path between the light source 440 and the light guide assembly 500.
  • the light splitting and combining element 460 is a dichroic plate, and the light splitting and combining element 460 includes a first surface 461 and a second surface 462 opposite to each other.
  • the first surface 461 is disposed near the light source 440, and the second surface 462 is near the guide
  • the optical assembly 500 is set.
  • the light splitting and combining element 460 is a dichroic plate, the light incident on the first surface 461 is transmitted through the first surface 461, and the light incident on the second surface 462 is reflected on the second surface 462, thereby playing a role of light splitting.
  • the light splitting and light combining element 460 may also be one of a regional coating sheet or a regional light combining sheet.
  • the optical system 400 further includes a condensing lens 450 for collecting and condensing the light emitted by the light source 440.
  • the fluorescent device 470 may remain stationary or rotate together with the light guide assembly 300.
  • an embodiment of the present invention also provides an optical system 600, which is a reflective optical system.
  • the optical system 600 includes a light source 640 and a light guide assembly 300, and the light guide assembly 300 receives the light emitted by the light source 640.
  • the optical system 600 further includes a light splitting and combining element 660, and the light splitting and combining element 660 is located on the optical path between the light source 640 and the light guide assembly 300.
  • the embodiment of the present invention provides that the optical system 200 adopts the light guide assembly 100, the optical system 400 adopts the light guide assembly 500, and the optical system 600 adopts the light guide assembly 300 can all obtain a circular spot with uniform brightness, and the optical path is simple and applicable. wide range.

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

Abstract

A light guide assembly (100), comprising a light guide rod (10), a rotating part (20) sleeved on the outside of the light guide rod (10) and fixedly connected to the light guide rod (10), and a driving assembly (30) for driving the rotating part (20) to rotate. The light guide rod (10) is used for light homogenization. When the rotating part (20) rotates, the light guide rod (10) is driven to rotate around an axis parallel to the long axis direction of the light guide rod (10), and light guided out by the light guide rod (10) during rotation forms a circular light spot. An optical system (200), comprising a light source (40) and the described light guide assembly (100). The light guide assembly (100) receives light emitted by a light source (40). The light guide assembly (100) and the optical system (200) drive the light guide rod (10) to rotate by means of the rotating part (20), so that a non-circular light spot is converted into a circular light spot having a larger area and a better light homogenization effect, thereby satisfying application requirements.

Description

导光组件及光学***Light guide component and optical system 技术领域Technical field
本发明涉及光学领域，具体而言，涉及一种导光组件及光学***。The present invention relates to the field of optics, in particular to a light guide assembly and an optical system.
背景技术Background technique
在照明领域，一般要求光源出射的照明光斑为均匀的圆形光斑。而现有的匀光元件有方形导光棒和圆形导光棒，方形导光棒垂直于导光棒中心线的截面为方形，圆形导光棒垂直于导光棒中心线的截面为圆形，其中，方形导光棒的匀光效果优于圆形导光棒的匀光效果，现有光学***中一般采用方形导光棒进行匀光以获得均匀的照明光斑。In the field of illumination, the illumination spot emitted by the light source is generally required to be a uniform circular spot. The existing homogenizing elements include a square light guide rod and a round light guide rod. The cross section of the square light guide rod perpendicular to the center line of the light guide rod is square, and the cross section of the round light guide rod perpendicular to the center line of the light guide rod is Round, the uniform light effect of the square light guide rod is better than that of the round light guide rod. In the existing optical system, a square light guide rod is generally used for uniform light to obtain a uniform illumination spot.
为获得圆形光斑，一种方式是采用方转圆一体式导光棒，或方形导光棒和圆形导光棒的组合，其存在的主要问题是光斑会出现明暗相间的花纹；另一方式是在光源的出射光路上设置一圆形图案片，其存在的主要问题是光利用率较低。In order to obtain a round light spot, one way is to use a square-to-round integrated light guide rod, or a combination of a square light guide rod and a round light guide rod. The main problem is that the light spot will have a pattern of light and dark. The method is to set a circular pattern sheet on the exit light path of the light source. The main problem is that the light utilization rate is low.
发明内容Summary of the invention
本发明提供了一种导光组件及光学***，可以使非圆形光斑转化为面积更大且匀光效果更好的圆形光斑，满足应用需求。The invention provides a light guide component and an optical system, which can convert a non-circular light spot into a circular light spot with a larger area and better uniform light effect, and meet application requirements.
本发明实施例通过以下技术方案来实现上述目的。The embodiments of the present invention achieve the above objectives through the following technical solutions.
第一方面，本发明实施例提供一种导光组件，包括导光棒、套接于导光棒外部并与导光棒固定连接的旋转部，以及驱动旋转部旋转的驱动组件，导光棒用于匀光，旋转部旋转时带动导光棒绕一平行于导光棒长轴方向的轴线进行旋转，导光棒在旋转时导出的光形成圆形光斑。In a first aspect, an embodiment of the present invention provides a light guide assembly, including a light guide rod, a rotating part sleeved on the outside of the light guide rod and fixedly connected to the light guide rod, and a driving assembly that drives the rotating part to rotate, the light guide rod It is used for homogenizing light. When the rotating part rotates, the light guide rod is driven to rotate around an axis parallel to the long axis direction of the light guide rod, and the light derived from the light guide rod forms a circular spot when the light guide rod rotates.
在一些实施例中，导光组件还包括轴承，轴承套接于旋转部的外部并与旋转部转动连接，旋转部旋转时轴承保持静止。In some embodiments, the light guide assembly further includes a bearing, which is sleeved on the outside of the rotating part and is rotatably connected with the rotating part, and the bearing remains stationary when the rotating part rotates.
在一些实施例中，旋转部包括旋转壳及传动装置，旋转壳包括外壳和设置于外壳表面的固定件，外壳形成收容空间，导光棒收容于收容空间，固定件固定连接于外壳和导光棒，传动装置套接于旋转壳的外表面。In some embodiments, the rotating part includes a rotating shell and a transmission device. The rotating shell includes a shell and a fixing part arranged on the surface of the shell. The shell forms an accommodating space, the light guide rod is accommodated in the accommodating space, and the fixing part is fixedly connected to the housing and the light guide. The rod and the transmission device are sleeved on the outer surface of the rotating shell.
在一些实施例中，传动装置包括齿轮或皮带轮，驱动组件通过齿轮啮合或传动带驱动传动装置转动。In some embodiments, the transmission device includes a gear or a pulley, and the drive assembly drives the transmission device to rotate through gear meshing or a transmission belt.
在一些实施例中，固定件包括弹片，弹片压贴于导光棒。In some embodiments, the fixing member includes an elastic sheet, and the elastic sheet is pressed against the light guide rod.
在一些实施例中，旋转壳的外表面设置有至少一个挂钩，弹片沿垂直导光棒中心轴的方向设置有与挂钩对应的开口，挂钩穿过开口以扣接固定弹片。In some embodiments, the outer surface of the rotating shell is provided with at least one hook, the elastic piece is provided with an opening corresponding to the hook along a direction perpendicular to the central axis of the light guide rod, and the hook passes through the opening to buckle and fix the elastic piece.
在一些实施例中，导光棒的中心轴线与旋转部的中心轴线重合。In some embodiments, the central axis of the light guide rod coincides with the central axis of the rotating part.
在一些实施例中，导光棒的中心轴线与旋转部的中心轴线平行且不重合。In some embodiments, the central axis of the light guide rod and the central axis of the rotating part are parallel and do not coincide.
第二方面，本发明实施例还提供一种导光组件，包括导光棒、套接于导光棒外部并与导光棒固定连接的旋转部，以及驱动旋转部旋转的驱动组件，导光棒用于匀光，旋转部包括位于长轴方向的端部，驱动组件设置于端部，旋转部旋转时带动导光棒绕一平行于导光棒长轴方向的轴线进行旋转，导光棒在旋转时导出的光形成圆形光斑。In a second aspect, embodiments of the present invention also provide a light guide assembly, including a light guide rod, a rotating part sleeved on the outside of the light guide rod and fixedly connected to the light guide rod, and a driving assembly that drives the rotating part to rotate. The rod is used for homogenizing light. The rotating part includes an end in the direction of the long axis. The drive assembly is arranged at the end. When the rotating part rotates, the light guide rod is driven to rotate around an axis parallel to the long axis of the light guide rod. The light derived during rotation forms a circular spot.
在一些实施例中，端部包括底壁，底壁包括相互背离的内表面与外表面，驱动组件抵接于外表面并与旋转部固定连接。In some embodiments, the end portion includes a bottom wall, the bottom wall includes an inner surface and an outer surface that face away from each other, and the driving component abuts on the outer surface and is fixedly connected to the rotating portion.
在一些实施例中，导光组件还包括荧光装置，荧光装置设于内表面，导光棒抵接于荧光装置。In some embodiments, the light guide assembly further includes a fluorescent device, the fluorescent device is provided on the inner surface, and the light guide rod abuts against the fluorescent device.
在一些实施例中，导光组件还包括反射装置，反射装置设于内表面，导光棒抵接于反射装置。In some embodiments, the light guide assembly further includes a reflection device, the reflection device is arranged on the inner surface, and the light guide rod abuts against the reflection device.
在一些实施例中，旋转部包括散热结构，散热机构位于外表面，散热结构为多个仿风扇结构翅片或扰流柱。In some embodiments, the rotating part includes a heat dissipation structure, the heat dissipation mechanism is located on the outer surface, and the heat dissipation structure is a plurality of fan-like fins or spoiler posts.
第二方面，本发明实施例还提供一种光学***，包括光源以及上述导光组件，导光组件收集光源发出的光。In a second aspect, an embodiment of the present invention also provides an optical system, including a light source and the above-mentioned light guide component, and the light guide component collects the light emitted by the light source.
本发明提供的导光组件及光学***通过旋转部带动导光棒旋转，光在导光棒内部多次反射，每次反射都会形成虚拟光源像，多次反射形成二维的虚拟光源矩阵，从而使得非圆形光斑转化为面积更大且匀光效果更好的圆形光斑，满足应用需求。The light guide assembly and the optical system provided by the present invention drive the light guide rod to rotate through the rotating part. The light is reflected multiple times inside the light guide rod, and each reflection will form a virtual light source image, and the multiple reflections form a two-dimensional virtual light source matrix. The non-circular light spot is transformed into a circular light spot with a larger area and better uniform light effect to meet application requirements.
本发明的这些方面或其他方面在以下实施例的描述中会更加简明易懂。These and other aspects of the present invention will be more concise and understandable in the description of the following embodiments.
附图说明Description of the drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例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发明的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.
图1是本发明实施例提供的导光组件的结构示意图。Fig. 1 is a schematic structural diagram of a light guide assembly provided by an embodiment of the present invention.
图2是本发明实施例提供的导光组件的导光棒的示意图。Fig. 2 is a schematic diagram of a light guide rod of a light guide assembly provided by an embodiment of the present invention.
图3是本发明又一种实施例提供的导光组件的导光棒的示意图。Fig. 3 is a schematic diagram of a light guide rod of a light guide assembly provided by another embodiment of the present invention.
图4是本发明实施例提供的导光组件发出的一种圆形光斑的示意图。Fig. 4 is a schematic diagram of a circular light spot emitted by the light guide assembly provided by the embodiment of the present invention.
图5是本发明实施例提供的导光组件发出的圆形光斑的亮度示意图。FIG. 5 is a schematic diagram of the brightness of a circular light spot emitted by a light guide assembly provided by an embodiment of the present invention.
图6是本发明一种实施例提供的导光组件的剖面示意图。Fig. 6 is a schematic cross-sectional view of a light guide assembly provided by an embodiment of the present invention.
图7是本发明又一种实施例提供的导光组件的剖面示意图。FIG. 7 is a schematic cross-sectional view of a light guide assembly provided by another embodiment of the present invention.
图8是本发明实施例提供的导光组件进行偏芯转动的示意图。FIG. 8 is a schematic diagram of a light guide assembly provided by an embodiment of the present invention performing eccentric rotation.
图9是本发明另一种实施例提供的导光组件通过传送带转动的示意图。Fig. 9 is a schematic diagram of a light guide assembly provided by another embodiment of the present invention rotating through a conveyor belt.
图10是本发明一种实施例提供的光学***的结构示意图。Fig. 10 is a schematic structural diagram of an optical system provided by an embodiment of the present invention.
图11是本发明另一种实施例提供的导光组件的结构示意图。FIG. 11 is a schematic structural diagram of a light guide assembly provided by another embodiment of the present invention.
图12是本发明再一种实施例提供的导光组件的结构示意图。Fig. 12 is a schematic structural diagram of a light guide assembly provided by still another embodiment of the present invention.
图13是本发明实施例提供的光学***的散热结构的示意图。FIG. 13 is a schematic diagram of a heat dissipation structure of an optical system provided by an embodiment of the present invention.
图14是本发明实施例提供的光学***的另一种散热结构的示意图。FIG. 14 is a schematic diagram of another heat dissipation structure of an optical system provided by an embodiment of the present invention.
图15是本发明又一种实施例提供的光学***的结构示意图。FIG. 15 is a schematic structural diagram of an optical system provided by another embodiment of the present invention.
图16是本发明另一种实施例提供的光学***的结构示意图。Fig. 16 is a schematic structural diagram of an optical system provided by another embodiment of the present invention.
具体实施方式Detailed ways
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域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，都属于本发明保护的范围。In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.
请参阅图1，本发明实施例提供一种导光组件100，导光组件100包括导光棒10、旋转部20及驱动组件30，旋转部20套接于导光棒10外部并与导光棒10固定连接，驱动组件30驱动旋转部20旋转，导光棒10用于匀光，旋转部20旋转时带动导光棒10绕一平行于导光棒10长轴方向的轴线X进行旋转，导光棒10在旋转时导出的光形成圆形光斑。1, an embodiment of the present invention provides a light guide assembly 100. The light guide assembly 100 includes a light guide rod 10, a rotating part 20, and a driving assembly 30. The rotating part 20 is sleeved on the outside of the light guide rod 10 and is connected to the light guide rod. The rod 10 is fixedly connected, and the driving assembly 30 drives the rotating part 20 to rotate. The light guide rod 10 is used for homogenizing light. When the rotating part 20 rotates, the light guide rod 10 is driven to rotate around an axis X parallel to the long axis direction of the light guide rod 10. The light guided by the light guide rod 10 when it rotates forms a circular light spot.
继续参阅图1，在本实施例中，导光棒10长轴方向的轴线X与旋转部20的旋转轴线重合，即导光棒10沿旋转部20的旋转轴线设置。在本发明的其他一 些实施方式中，导光棒10长轴方向的轴线X与旋转部20的旋转轴线平行且不重合，即导光棒10在旋转部20内部偏芯设置。当导光棒10在旋转部20内部偏芯设置时，旋转部20带动导光棒10转动，可以改变形成圆形光斑的大小及亮度分布，进而得到需求大小及亮度分布的光斑。1, in this embodiment, the axis X of the long axis direction of the light guide rod 10 coincides with the rotation axis of the rotating part 20, that is, the light guide rod 10 is arranged along the rotation axis of the rotating part 20. In some other embodiments of the present invention, the axis X of the long axis direction of the light guide rod 10 is parallel to and does not overlap the rotation axis of the rotating part 20, that is, the light guide rod 10 is eccentrically arranged inside the rotating part 20. When the light guide rod 10 is eccentrically arranged inside the rotating part 20, the rotating part 20 drives the light guide rod 10 to rotate, which can change the size and brightness distribution of the circular spot, thereby obtaining a spot of the required size and brightness distribution.
参阅图2，在本实施例中，导光棒10为实心结构，导光棒10沿轴线X的两端，即第一端面11与第二端面12，导光棒10沿垂直于轴线方向X的截面为四边形。在本发明的一些实施方式中，导光棒10沿垂直于轴线方向X的截面也可以为三角形、五边形、六边形、八边形等各种多边形。根据多次实验测算发现，多边形截面的导光棒10相比于圆形截面的导光棒有更好的匀光效果且光损失较少。在本发明的一些其他实施方式中，导光棒10也可以为空心结构。2, in this embodiment, the light guide rod 10 is a solid structure, the light guide rod 10 along the two ends of the axis X, namely the first end surface 11 and the second end surface 12, the light guide rod 10 along the direction perpendicular to the axis X The cross section is quadrilateral. In some embodiments of the present invention, the cross section of the light guide rod 10 along the axial direction X may also be various polygons such as triangles, pentagons, hexagons, and octagons. According to many experiments and calculations, it is found that the light guide rod 10 with a polygonal cross section has a better uniform light effect and less light loss than a light guide rod with a circular cross section. In some other embodiments of the present invention, the light guide rod 10 may also be a hollow structure.
在本发明的一些实施方式中，导光棒10为中心对称结构，且导光棒10在垂直于轴线方向X的截面处处相同。参阅图3，在本发明的另外一些实施方式中，导光棒10a在垂直于轴线方向Y的截面也可以等比例地变化，例如，沿轴线方向Y，第一端面11a的面积大于第二端面12a的面积，第一端面11a和第二端面12a之间相互平行的截面沿第一端面11a到第二端面12a的方向均匀变小。在本发明的一些实施方式中，沿第一端面11a到第二端面12a的方向，该截面面积也可以非均匀变大，或者第二端12a处截面面积也可以大于第一端面11a处的截面面积。In some embodiments of the present invention, the light guide rod 10 has a center symmetric structure, and the light guide rod 10 is the same at the cross section perpendicular to the axial direction X. 3, in other embodiments of the present invention, the cross-section of the light guide rod 10a perpendicular to the axis direction Y can also be changed proportionally. For example, along the axis direction Y, the area of the first end surface 11a is larger than that of the second end surface. The area of 12a, the cross-section parallel to each other between the first end surface 11a and the second end surface 12a becomes uniformly smaller along the direction from the first end surface 11a to the second end surface 12a. In some embodiments of the present invention, along the direction from the first end surface 11a to the second end surface 12a, the cross-sectional area can also be non-uniformly larger, or the cross-sectional area at the second end 12a can also be larger than the cross-sectional area at the first end surface 11a. area.
导光棒10的匀光原理如下：光在导光棒10内部多次反射，每次反射都会形成虚拟光源像，多次反射虚拟光源像形成二维的虚拟光源矩阵，从而使得出光更加均匀，截面非圆形的导光棒10在未转动时导出的光线会形成对应的非圆形光斑，而非圆形光斑在导光棒10转动时能够转化为面积更大且匀光效果更好的圆形光斑，从而满足应用需求。The light homogenization principle of the light guide rod 10 is as follows: light is reflected multiple times inside the light guide rod 10, and each reflection will form a virtual light source image, and the multiple reflection virtual light source images form a two-dimensional virtual light source matrix, thereby making the light more uniform. When the light guide rod 10 with a non-circular cross-section is not rotated, the light derived from it will form a corresponding non-circular light spot, and the non-circular light spot can be transformed into a larger area and better uniform light effect when the light guide rod 10 rotates. Circular spot to meet application requirements.
例如，在本实施例中，导光棒10的截面为四边形且边长为2a时，参阅图4，随着导光棒10的旋转，在导光棒10的出光面形成无数个光斑，无数个光斑重叠形成最终的照明光斑。For example, in this embodiment, when the cross section of the light guide rod 10 is quadrilateral and the side length is 2a, referring to FIG. 4, as the light guide rod 10 rotates, numerous light spots are formed on the light exit surface of the light guide rod 10. The two spots overlap to form the final illumination spot.
通常条件下，人眼的识别连贯图像的速度是24帧/秒，也就是1000毫秒/24帧，大约为40ms(毫秒)，达到或者超过这个速度的连贯图像，人眼在观看时就不会形成卡顿的感觉，因此当导光棒10的旋转速度高于24rpm时，人眼观察的情况下可以形成连续的圆形照明光斑。Under normal conditions, the speed at which the human eye recognizes a coherent image is 24 frames per second, which is 1000 milliseconds/24 frames, which is about 40ms (milliseconds). If a coherent image reaches or exceeds this speed, the human eye will not A feeling of stuttering is formed, so when the rotation speed of the light guide rod 10 is higher than 24 rpm, a continuous circular illuminating spot can be formed under observation by the human eye.
无数个方形光斑重叠形成圆形光斑，圆形光斑的直径为四边形光斑的外接圆的直径，即2√2a，相对于截面为圆形的导光棒只能形成同样大小的圆形光斑的情况，本实施例中截面为四边形的导光棒10将原本四边形的光斑面积扩大成了四边形的外接圆的光斑面积，进而有更好的照明和投影的效果。Numerous square light spots overlap to form a circular light spot. The diameter of the circular light spot is the diameter of the circumscribed circle of the quadrilateral light spot, that is, 2√2a. Compared with the light guide rod with a circular cross section, it can only form a circular light spot of the same size. In this embodiment, the light guide rod 10 with a quadrilateral cross-section expands the spot area of the original quadrilateral into the spot area of the circumscribed circle of the quadrilateral, thereby having better lighting and projection effects.
对于所形成的圆形光斑的亮度，参阅图4及图5，假设原四边形光斑亮度均匀，则在直径为2a(横轴上0点左侧的a到右侧的a之间)的区域内为多个四边形光斑的重叠处，该部分圆光斑亮度与四边形光斑亮度相同，在直径为2a到2√2a的圆环内由于四边形光斑的重叠次数较少，亮度比逐渐降低直至为0。For the brightness of the formed circular spot, refer to Figures 4 and 5. Assuming that the original quadrilateral spot has a uniform brightness, then the diameter is 2a (between a on the left side of the 0 point on the horizontal axis and a on the right side). It is the overlap of multiple quadrilateral light spots. The brightness of this part of the circular light spot is the same as that of the quadrilateral light spot. In a circle with a diameter of 2a to 2√2a, since the overlap of the quadrilateral light spots is less, the brightness ratio gradually decreases until it reaches zero.
参阅图6，在本发明的一些实施方式中，旋转部20还可以包括轴承27，轴承27套接于旋转部20的外部并与旋转部20转动连接，旋转部20旋转时，轴承27保持静止，具体地，轴承27为圆环状结构，在本实施例中，轴承27的数量为两个，两个轴承27分别设置于旋转部20的两端。Referring to FIG. 6, in some embodiments of the present invention, the rotating part 20 may further include a bearing 27. The bearing 27 is sleeved on the outside of the rotating part 20 and is rotatably connected with the rotating part 20. When the rotating part 20 rotates, the bearing 27 remains stationary. Specifically, the bearing 27 has an annular structure. In this embodiment, the number of the bearing 27 is two, and the two bearings 27 are respectively provided at both ends of the rotating part 20.
在本发明的一些实施方式中，导光组件100还可以包括静止壳体28，静止壳体28包括环形卡槽281，轴承27嵌设于环形卡槽281。在旋转部20转动的过程中，轴承27在环形卡槽281内相对静止壳体28滑动。In some embodiments of the present invention, the light guide assembly 100 may further include a stationary housing 28, the stationary housing 28 includes an annular groove 281, and the bearing 27 is embedded in the annular groove 281. During the rotation of the rotating part 20, the bearing 27 slides relative to the stationary housing 28 in the annular groove 281.
参阅图7，在本发明的另一种实施方式中，轴承27具有内表面271和外表 面272，轴承27通过其内表面271套设于旋转部20的两端，通过其外表面272以螺钉273的方式固定于静止壳体28。在旋转部20转动的过程中，旋转部20与轴承27相对滑动，轴承27及静止壳28保持相对静止。Referring to FIG. 7, in another embodiment of the present invention, the bearing 27 has an inner surface 271 and an outer surface 272. The bearing 27 is sleeved on both ends of the rotating part 20 through the inner surface 271, and the outer surface 272 is screwed 273 is fixed to the stationary housing 28. During the rotation of the rotating part 20, the rotating part 20 and the bearing 27 slide relatively, and the bearing 27 and the stationary housing 28 remain relatively stationary.
轴承27与静止壳体28的设置可以起到固定和保护导光组件100的作用，避免环境中的其他物体对高速旋转的导光组件100产生影响，提高***的稳定性及安全系数。The arrangement of the bearing 27 and the stationary housing 28 can play the role of fixing and protecting the light guide assembly 100, avoiding other objects in the environment from affecting the high-speed rotating light guide assembly 100, and improving the stability and safety factor of the system.
请参阅图1，旋转部20包括旋转壳21与传动装置23，传动装置23套接于旋转壳21的外表面。具体地，在本实施例中，旋转壳21为空心圆柱体结构，旋转壳21包括外壳211和设置于外壳211表面的固定件212，外壳211形成收容空间213，导光棒10收容于收容空间213，固定件212固定连接于外壳211和导光棒10。收容空间213的构造和导光棒10的形状相匹配以稳固放置导光棒10。导光棒10收容于收容空间211的方式不仅可以由旋转壳21带动导光棒10转动，还可以起到更好的固定导光棒10的作用。Please refer to FIG. 1, the rotating part 20 includes a rotating shell 21 and a transmission device 23, and the transmission device 23 is sleeved on the outer surface of the rotating shell 21. Specifically, in this embodiment, the rotating shell 21 has a hollow cylindrical structure. The rotating shell 21 includes a shell 211 and a fixing member 212 provided on the surface of the shell 211. The shell 211 forms a receiving space 213, and the light guide rod 10 is accommodated in the receiving space. 213. The fixing member 212 is fixedly connected to the housing 211 and the light guide rod 10. The structure of the accommodating space 213 matches the shape of the light guide rod 10 to stably place the light guide rod 10. The way that the light guide rod 10 is accommodated in the accommodating space 211 not only can drive the light guide rod 10 to rotate by the rotating shell 21, but also can better fix the light guide rod 10.
具体地，旋转壳21空心圆柱体结构的两端的圆周面完整，中段的圆周面镂空，由多条柱体连接两端的圆周面，中空的部分形成收容空间213。Specifically, the circumferential surfaces of the two ends of the hollow cylinder structure of the rotating shell 21 are complete, the circumferential surface of the middle section is hollowed out, and the circumferential surfaces of the two ends are connected by a plurality of cylinders, and the hollow part forms the receiving space 213.
请参阅图1及图8，在本实施例中，传动装置23具体为传动齿轮，外周设有锯齿状结构，传动装置23以齿轮传动的方式转动。具体地，传动装置23作为被动齿轮由驱动组件30带动转动，驱动组件30包括主动轮31，主动轮31与传动装置23啮合连接。在本实施例中，导光棒10长轴方向的轴线X与旋转部20的旋转轴线重合，传动齿轮的数量为两个，分别套设于旋转壳21的两端的圆周面，在本发明的其他实施方式中，传动齿轮的数量也可以为1个。1 and FIG. 8, in this embodiment, the transmission device 23 is specifically a transmission gear with a saw-tooth structure on the outer periphery, and the transmission device 23 rotates in a gear transmission manner. Specifically, the transmission device 23 is driven to rotate by the driving assembly 30 as a passive gear. The driving assembly 30 includes a driving wheel 31, and the driving wheel 31 is in meshing connection with the transmission device 23. In this embodiment, the axis X of the long axis direction of the light guide rod 10 coincides with the rotation axis of the rotating part 20, and the number of transmission gears is two, which are respectively sleeved on the circumferential surfaces of the two ends of the rotating shell 21. In the present invention In other embodiments, the number of transmission gears may also be one.
参阅图9，在本发明的一些实施方式中，传动装置23a为皮带轮，传动装置23a以传动带传动的方式转动。具体地，传动装置23a的外周面设有传动带槽， 驱动组件30a包括转盘，转盘通过传动带281与传动装置23a连接，转盘作为主动轮通过传动带281带动传动装置23a转动。Referring to FIG. 9, in some embodiments of the present invention, the transmission device 23a is a belt pulley, and the transmission device 23a rotates in a belt drive manner. Specifically, the outer peripheral surface of the transmission device 23a is provided with a transmission belt groove, and the driving assembly 30a includes a turntable. The turntable is connected to the transmission device 23a through a transmission belt 281. The turntable is used as a driving wheel to drive the transmission device 23a to rotate through the transmission belt 281.
请再次参阅图1，固定件212包括弹片2121，弹片2121压贴于导光棒10。具体地，旋转壳21的外表面设置有至少一个挂钩215，弹片2121沿垂直于导光棒10长轴方向的轴线设置有与挂钩215对应的开口2122，挂钩215穿过开口2122以扣接固定弹片2121。弹片2121环绕导光棒10的外周设置。弹片2121可以将导光棒10与旋转壳21牢固结合，防止导光组件100在高速旋转的过程中出现导光棒10与旋转壳21分离的情况，提高导光组件100整体的稳固性。Please refer to FIG. 1 again. The fixing member 212 includes an elastic sheet 2121, and the elastic sheet 2121 is pressed against the light guide rod 10. Specifically, the outer surface of the rotating shell 21 is provided with at least one hook 215, the elastic sheet 2121 is provided with an opening 2122 corresponding to the hook 215 along an axis perpendicular to the long axis direction of the light guide rod 10, and the hook 215 passes through the opening 2122 to be buckled and fixed. Shrapnel 2121. The elastic sheet 2121 is arranged around the outer circumference of the light guide rod 10. The elastic sheet 2121 can firmly combine the light guide rod 10 and the rotating shell 21 to prevent the light guide rod 10 and the rotating shell 21 from being separated during the high-speed rotation of the light guide assembly 100, and improve the overall stability of the light guide assembly 100.
在本发明的其他实施方式中固定件212也可以采用其他结构，如胶结条或弹性收缩装置将导光棒10与旋转部20固定。In other embodiments of the present invention, the fixing member 212 may also adopt other structures, such as a glue strip or an elastic contraction device to fix the light guide rod 10 and the rotating part 20.
请参阅图10，本发明实施例还提供一种光学***200，光学***200为一种透射式光学***。光学***200包括光源40及导光组件100，导光组件100接收光源40发出的光，对其进行匀化，且在转动时导出圆形光斑。Referring to FIG. 10, an embodiment of the present invention further provides an optical system 200, which is a transmissive optical system. The optical system 200 includes a light source 40 and a light guide assembly 100. The light guide assembly 100 receives the light emitted by the light source 40, homogenizes it, and derives a circular light spot when rotating.
在本发明的一些实施方式中，光学***200还包括会聚透镜50，会聚透镜50位于光源40与导光组件100之间的光路上，会聚透镜50用于收集和会聚光源40发出的光线。In some embodiments of the present invention, the optical system 200 further includes a condensing lens 50 located on the optical path between the light source 40 and the light guide assembly 100, and the condensing lens 50 is used to collect and condense the light emitted by the light source 40.
在本实施例中，为了更好的对光学***200形成的光斑进行解释，图9中还设置了接收屏90，光源40发出的光在接收屏90上形成圆形光斑。众所周知的是，接收屏90的存在与否不会对光学***100的出光效果产生影响，在本发明的其他实施方式中也可以不设置接收屏90。In this embodiment, in order to better explain the light spot formed by the optical system 200, a receiving screen 90 is also provided in FIG. 9, and the light emitted by the light source 40 forms a circular light spot on the receiving screen 90. It is well known that the presence or absence of the receiving screen 90 will not affect the light output effect of the optical system 100. In other embodiments of the present invention, the receiving screen 90 may not be provided.
由光源40发出的光线经会聚透镜50会聚于导光组件100的入光面，导光组件100在外部电机的带动下转动，在导光组件100的出光面形成无数个方形光斑，无数个方形光斑重叠形成圆形光斑。透射式的光学***200结构简单且 能形成匀光效果良好的圆形光斑，适用范围广。The light emitted by the light source 40 is condensed on the light entrance surface of the light guide assembly 100 by the condensing lens 50. The light guide assembly 100 rotates under the driving of an external motor, and countless square spots are formed on the light exit surface of the light guide assembly 100. The light spots overlap to form a circular light spot. The transmissive optical system 200 has a simple structure and can form a circular light spot with a good uniform light effect, and has a wide range of applications.
请参阅图11，本发明实施例还提供一种导光组件300，导光组件300包括导光棒10a，套接于导光棒10a外部并与导光棒10a固定连接的旋转部320，以及驱动旋转部320旋转的驱动组件330，导光棒10a用于匀光，旋转部320包括位于长轴方向的端部321，驱动组件330设置于端部321，旋转部320旋转时带动导光棒10a绕一平行于导光棒10a长轴方向的轴线Y进行旋转，导光棒10a在旋转时导出的光形成圆形光斑。Referring to FIG. 11, an embodiment of the present invention also provides a light guide assembly 300, the light guide assembly 300 includes a light guide rod 10a, a rotating part 320 sleeved on the outside of the light guide rod 10a and fixedly connected to the light guide rod 10a, and The driving assembly 330 that drives the rotating part 320 to rotate. The light guide rod 10a is used for homogenizing light. The rotating part 320 includes an end 321 located in the long axis direction. The driving assembly 330 is arranged at the end 321. When the rotating part 320 rotates, the light guide rod is driven 10a rotates around an axis Y parallel to the long axis direction of the light guide rod 10a, and the light derived from the light guide rod 10a forms a circular spot when it rotates.
在本实施例中，驱动组件330包括包括电机3301与驱动轴3302，驱动轴3302与电机3301为一体转动结构，也即电机3301与驱动轴3302固定连接，可以一起运动，进而可以有效避免其他结合方式如啮合方式中存在啮合精度及多个转动部件之间无法保证同心度的问题，旋转部320的集成性较高，无多余转动部件，且旋转部320对称性较好，不会出现较严重的转动平衡问题。In this embodiment, the drive assembly 330 includes a motor 3301 and a drive shaft 3302. The drive shaft 3302 and the motor 3301 are an integral rotating structure, that is, the motor 3301 and the drive shaft 3302 are fixedly connected and can move together, thereby effectively avoiding other combinations. For example, in the meshing mode, there are problems of meshing accuracy and concentricity between multiple rotating parts. The rotating part 320 has high integration, no redundant rotating parts, and the rotating part 320 has good symmetry, which will not cause serious problems. The rotation balance problem.
旋转部320包括旋转壳321，在本实施例中，旋转壳321为空心圆柱体结构，端部321包括底壁322，底壁322包括相互背离的内表面3221与外表面3222，驱动组件330抵接于外表面3222并与旋转部320固定连接。The rotating part 320 includes a rotating shell 321. In this embodiment, the rotating shell 321 has a hollow cylindrical structure. The end 321 includes a bottom wall 322. The bottom wall 322 includes an inner surface 3221 and an outer surface 3222 that are away from each other. The drive assembly 330 abuts It is connected to the outer surface 3222 and fixedly connected to the rotating part 320.
在本实施例中，导光组件300还包括荧光装置340，荧光装置340设于内表面3221，导光棒10a抵接于荧光装置340。In this embodiment, the light guide assembly 300 further includes a fluorescent device 340, the fluorescent device 340 is disposed on the inner surface 3221, and the light guide rod 10 a abuts against the fluorescent device 340.
荧光装置340为由荧光材料构成的膜状结构，在光束的激发下发出荧光，在一些实施方式中，由于荧光装置340在光转换过程中会产生热量，若不能及时散热则荧光装置340的工作温度逐步上升，超过一定的温度后荧光转换效率急剧降低，热功耗升高引起恶性循环，最终在极端工作温度下出现失效。在本实施例中荧光装置340进一步为具有散射功能的荧光膜，可以对部分光束进行散热，减少热量的积累。The fluorescent device 340 is a film-like structure composed of fluorescent materials, which emits fluorescence under the excitation of the light beam. In some embodiments, the fluorescent device 340 generates heat during the light conversion process. If the fluorescent device 340 cannot dissipate heat in time, the fluorescent device 340 will work The temperature gradually rises, and the fluorescence conversion efficiency drops sharply after a certain temperature. The increase in thermal power consumption causes a vicious circle, and finally fails at extreme operating temperatures. In this embodiment, the fluorescent device 340 is further a fluorescent film with a scattering function, which can dissipate part of the light beam and reduce the accumulation of heat.
具体地，荧光装置340可以是荧光粉及其载体混合而形成，载体例如可以是胶水，玻璃等，荧光粉例如可以是是黄色荧光粉，绿色荧光粉，红色荧光粉，或几种荧光粉的混合等等，在具体实施例中，通过激发荧光粉来对光源出射的光进行波长转换，形成照明光，此时荧光装置340与内表面3221之间设置有反射层，该反射层为金属反射或非金属反射层。Specifically, the fluorescent device 340 may be formed by mixing fluorescent powder and its carrier. The carrier may be glue, glass, etc., and the fluorescent powder may be, for example, yellow fluorescent powder, green fluorescent powder, red fluorescent powder, or several types of fluorescent powder. Mixing, etc., in a specific embodiment, the wavelength of the light emitted by the light source is converted by exciting the phosphor to form the illuminating light. At this time, a reflective layer is provided between the fluorescent device 340 and the inner surface 3221, and the reflective layer is a metal reflective layer. Or non-metallic reflective layer.
在本发明的一些实施方式中，荧光装置340也可以为金属反射材料，如银、铝、金、铬、镍、铜、铂、铑及银/铝、金/银、金/铝、金/银/铝等至少一种材料或两种及两种以上形成的复合材料，也可以为非金属反射材料，如氧化硅、氟化镁、硫化锌、氧化钽、氧化铈、氧化锆、氧化铝等至少一种材料或两种及两种以上形成的复合材料或金属-非金属复合反射材料，上述金属与非金属的两种及两种以上材料形成的复合材料。In some embodiments of the present invention, the fluorescent device 340 may also be a metal reflective material, such as silver, aluminum, gold, chromium, nickel, copper, platinum, rhodium, and silver/aluminum, gold/silver, gold/aluminum, gold/ At least one material such as silver/aluminum, or a composite material formed of two or more, can also be non-metallic reflective materials, such as silicon oxide, magnesium fluoride, zinc sulfide, tantalum oxide, cerium oxide, zirconium oxide, and aluminum oxide At least one material or a composite material formed of two or more kinds or a metal-non-metal composite reflective material, and a composite material formed of two or more materials of the above-mentioned metal and non-metal.
在本发明的一些实施方式中，荧光装置340与内表面3221之间还可以涂覆导热膏以降低荧光装置340与荧光装置340之间的接触热阻。In some embodiments of the present invention, a thermal conductive paste may be coated between the fluorescent device 340 and the inner surface 3221 to reduce the contact thermal resistance between the fluorescent device 340 and the fluorescent device 340.
参阅图12，在本发明的一些实施方式中，导光组件300也可以将荧光装置340替换为反射装置350，反射装置350设于内表面3221，导光棒10a抵接于反射装置350，反射装置350用于反射接收到的光线。在本发明的另外一个实施方式中，导光棒10a与反射装置350之间也可以间隔一定的距离。12, in some embodiments of the present invention, the light guide assembly 300 can also replace the fluorescent device 340 with a reflective device 350, the reflective device 350 is provided on the inner surface 3221, and the light guide rod 10a abuts against the reflective device 350 to reflect The device 350 is used to reflect the received light. In another embodiment of the present invention, the light guide rod 10a and the reflecting device 350 may also be separated by a certain distance.
继续参阅图11，导光组件300中，旋转部320还可以包括散热结构326，散热机构326位于外表面3222，用于散发***发出的热量，给旋转壳降温。参阅图13，散热结构326为多个仿风扇结构翅片3261。参阅图14，在本发明的一些实施方式中，散热结构326a也可以为多个扰流柱3262。扰流柱3262和仿风扇结构翅片3261可以混合设置于外表面3222。散热结构326及326a用于在转动时增强附近流体扰动，增大对流换热系数，从而达到增强换热的目的且不用额外 增加散热元件。Continuing to refer to FIG. 11, in the light guide assembly 300, the rotating part 320 may further include a heat dissipation structure 326, which is located on the outer surface 3222, and is used for dissipating heat generated by the system and cooling the rotating shell. Referring to FIG. 13, the heat dissipation structure 326 is a plurality of fan-like fins 3261. Referring to FIG. 14, in some embodiments of the present invention, the heat dissipation structure 326 a may also be a plurality of spoiler columns 3262. The spoiler column 3262 and the fan-like structure fin 3261 can be mixedly arranged on the outer surface 3222. The heat dissipation structures 326 and 326a are used to enhance nearby fluid disturbance during rotation and increase the convective heat transfer coefficient, so as to achieve the purpose of enhancing heat transfer without adding additional heat dissipation elements.
请参阅图15，本发明实施例还提供一种光学***400，光学***400为一种反射式光学***。光学***400包括光源440及导光组件500，导光组件500包括荧光装置470，荧光装置470与导光棒510中间间隔一定的距离，导光组件500接收光源440发出的光。光学***400还包括分光合光元件460，分光合光元件460位于光源440与导光组件500之间的光路上。Referring to FIG. 15, an embodiment of the present invention also provides an optical system 400, which is a reflective optical system. The optical system 400 includes a light source 440 and a light guide assembly 500. The light guide assembly 500 includes a fluorescent device 470. The fluorescent device 470 is spaced a certain distance from the light guide rod 510, and the light guide assembly 500 receives the light emitted by the light source 440. The optical system 400 further includes a light splitting and light combining element 460, and the light splitting and light combining element 460 is located on the optical path between the light source 440 and the light guide assembly 500.
在本实施例中，分光合光元件460为二向色片，分光合光元件460包括相对的第一面461与第二面462，第一面461近光源440设置，第二面462近导光组件500设置。分光合光元件460为二向色片，向第一面461入射的光线在第一面461透射，向第二面462入射的光线在第二面462发生反射，从而起到分光的作用。在本发明的一些实施方式中，分光合光元件460也可以为区域镀膜片或区域合光片中的一种。In this embodiment, the light splitting and combining element 460 is a dichroic plate, and the light splitting and combining element 460 includes a first surface 461 and a second surface 462 opposite to each other. The first surface 461 is disposed near the light source 440, and the second surface 462 is near the guide The optical assembly 500 is set. The light splitting and combining element 460 is a dichroic plate, the light incident on the first surface 461 is transmitted through the first surface 461, and the light incident on the second surface 462 is reflected on the second surface 462, thereby playing a role of light splitting. In some embodiments of the present invention, the light splitting and light combining element 460 may also be one of a regional coating sheet or a regional light combining sheet.
在本实施例中，光学***400还包括会聚透镜450，会聚透镜450用于收集和会聚光源440发出的光线。荧光装置470可以保持静止或与导光组件300一起转动。In this embodiment, the optical system 400 further includes a condensing lens 450 for collecting and condensing the light emitted by the light source 440. The fluorescent device 470 may remain stationary or rotate together with the light guide assembly 300.
请参阅图16，本发明实施例还提供一种光学***600，光学***600为一种反射式光学***。光学***600包括光源640及导光组件300，导光组件300接收光源640发出的光。光学***600还包括分光合光元件660，分光合光元件660位于光源640与导光组件300之间的光路上。Referring to FIG. 16, an embodiment of the present invention also provides an optical system 600, which is a reflective optical system. The optical system 600 includes a light source 640 and a light guide assembly 300, and the light guide assembly 300 receives the light emitted by the light source 640. The optical system 600 further includes a light splitting and combining element 660, and the light splitting and combining element 660 is located on the optical path between the light source 640 and the light guide assembly 300.
综上所述，本发明实施例提供光学***200采用导光组件100、光学***400采用导光组件500及光学***600采用导光组件300均能得到亮度均匀的圆形光斑，光路简单，适用范围广。In summary, the embodiment of the present invention provides that the optical system 200 adopts the light guide assembly 100, the optical system 400 adopts the light guide assembly 500, and the optical system 600 adopts the light guide assembly 300 can all obtain a circular spot with uniform brightness, and the optical path is simple and applicable. wide range.
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实 施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围，均应包含在本发明的保护范围之内。The above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that: The recorded technical solutions are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the present invention Within the scope of protection.

Claims (14)

  1. 一种导光组件，其特征在于，包括导光棒、套接于所述导光棒外部并与所述导光棒固定连接的旋转部，以及驱动所述旋转部旋转的驱动组件，所述导光棒用于匀光，所述旋转部旋转时带动所述导光棒绕一平行于所述导光棒长轴方向的轴线进行旋转，所述导光棒在旋转时导出的光形成圆形光斑。A light guide assembly, characterized in that it comprises a light guide rod, a rotating part sleeved on the outside of the light guide rod and fixedly connected to the light guide rod, and a driving assembly for driving the rotating part to rotate. The light guide rod is used for homogenizing light. When the rotating part rotates, the light guide rod is driven to rotate around an axis parallel to the long axis direction of the light guide rod. The light derived from the light guide rod forms a circle when the light guide rod rotates.形光点。 Shaped spot.
  2. 如权利要求1所述的导光组件，其特征在于，所述导光组件还包括轴承，所述轴承套接于所述旋转部的外部并与所述旋转部转动连接，所述旋转部旋转时所述轴承保持静止。The light guide assembly according to claim 1, wherein the light guide assembly further comprises a bearing, the bearing is sleeved on the outside of the rotating part and is rotatably connected with the rotating part, the rotating part rotates When the bearing remains stationary.
  3. 如权利要求1所述的导光组件，其特征在于，所述旋转部包括：The light guide assembly of claim 1, wherein the rotating part comprises:
    旋转壳，所述旋转壳包括外壳和设置于所述外壳表面的固定件，所述外壳形成收容空间，所述导光棒收容于所述收容空间，所述固定件固定连接于所述外壳和所述导光棒；以及A rotating shell, the rotating shell includes a shell and a fixing part arranged on the surface of the shell, the shell forms an accommodating space, the light guide rod is accommodated in the accommodating space, and the fixing part is fixedly connected to the shell and The light guide rod; and
    传动装置，所述传动装置套接于所述旋转壳的外表面。The transmission device is sleeved on the outer surface of the rotating shell.
  4. 如权利要求3所述的导光组件，其特征在于，所述传动装置包括齿轮或皮带轮，所述驱动组件通过所述齿轮啮合或所述传动带驱动所述传动装置转动。The light guide assembly of claim 3, wherein the transmission device comprises a gear or a pulley, and the driving assembly drives the transmission device to rotate through the gear meshing or the transmission belt.
  5. 如权利要求3所述的导光组件，其特征在于，所述固定件包括弹片，所述弹片压贴于所述导光棒。8. The light guide assembly of claim 3, wherein the fixing member comprises an elastic sheet, and the elastic sheet is pressed against the light guide rod.
  6. 如权利要求5所述的导光组件，其特征在于，所述旋转壳的外表面设置有至少一个挂钩，所述弹片沿垂直所述导光棒长轴方向的轴线设置有与所述挂钩对 应的开口，所述挂钩穿过所述开口以扣接固定所述弹片。The light guide assembly of claim 5, wherein the outer surface of the rotating shell is provided with at least one hook, and the elastic sheet is provided with a hook corresponding to the hook along an axis perpendicular to the long axis of the light guide rod. The hook passes through the opening to buckle and fix the elastic sheet.
  7. 如权利要求1所述的导光组件，其特征在于，所述导光棒长轴方向的轴线与所述旋转部的旋转轴线重合。The light guide assembly according to claim 1, wherein the axis of the long axis of the light guide rod coincides with the rotation axis of the rotating part.
  8. 如权利要求1所述的导光组件，其特征在于，所述导光棒长轴方向的轴线与所述旋转部的旋转轴线平行且不重合。3. The light guide assembly of claim 1, wherein the axis of the long axis of the light guide rod is parallel to and does not overlap with the rotation axis of the rotating part.
  9. 一种导光组件，其特征在于，包括导光棒、套接于所述导光棒外部并与所述导光棒固定连接的旋转部，以及驱动所述旋转部旋转的驱动组件，所述导光棒用于匀光，所述旋转部包括位于长轴方向的端部，所述驱动组件设置于所述端部，所述旋转部旋转时带动所述导光棒绕一平行于所述导光棒长轴方向的轴线进行旋转，所述导光棒在旋转时导出的光形成圆形光斑。A light guide assembly, characterized in that it comprises a light guide rod, a rotating part sleeved on the outside of the light guide rod and fixedly connected to the light guide rod, and a driving assembly for driving the rotating part to rotate. The light guide rod is used for homogenizing light, the rotating part includes an end part located in the long axis direction, the driving assembly is arranged at the end part, and the rotating part drives the light guide rod to rotate a circle parallel to the The axis of the long axis direction of the light guide rod rotates, and the light derived from the light guide rod when the light guide rod rotates forms a circular light spot.
  10. 如权利要求9所述的导光组件，其特征在于，所述端部包括底壁，所述底壁包括相互背离的内表面与外表面，所述驱动组件抵接于所述外表面并与所述旋转部固定连接。9. The light guide assembly of claim 9, wherein the end portion includes a bottom wall, the bottom wall includes an inner surface and an outer surface facing away from each other, and the driving assembly abuts against the outer surface and is in contact with The rotating part is fixedly connected.
  11. 如权利要求10所述的导光组件，其特征在于，所述导光组件还包括荧光装置，所述荧光装置设于所述内表面，所述导光棒抵接于所述荧光装置。10. The light guide assembly of claim 10, wherein the light guide assembly further comprises a fluorescent device, the fluorescent device is provided on the inner surface, and the light guide rod abuts against the fluorescent device.
  12. 如权利要求10所述的导光组件，其特征在于，所述导光组件还包括反射装置，所述反射装置设于所述内表面，所述导光棒抵接于所述反射装置。9. The light guide assembly of claim 10, wherein the light guide assembly further comprises a reflection device, the reflection device is provided on the inner surface, and the light guide rod abuts against the reflection device.
  13. 如权利要求10所述的导光组件，其特征在于，所述旋转部包括散热结构，所述散热机构位于所述外表面，所述散热结构为多个仿风扇结构翅片或扰流柱。10. The light guide assembly of claim 10, wherein the rotating part comprises a heat dissipation structure, the heat dissipation mechanism is located on the outer surface, and the heat dissipation structure is a plurality of fan-like fins or spoiler posts.
  14. 一种光学***，其特征在于，包括光源、光学元件以及如权利要求1-14任一项所述的导光组件，所述导光组件收集所述光源发出的光。An optical system, which is characterized by comprising a light source, an optical element, and the light guide assembly according to any one of claims 1-14, and the light guide assembly collects the light emitted by the light source.
PCT/CN2020/123807 2019-11-13 2020-10-27 Light guide assembly and optical system WO2021093566A1 (en)

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