WO2023020165A1 - 扩散片组件、光束消散斑装置以及投影仪 - Google Patents

扩散片组件、光束消散斑装置以及投影仪 Download PDF

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Publication number
WO2023020165A1
WO2023020165A1 PCT/CN2022/105283 CN2022105283W WO2023020165A1 WO 2023020165 A1 WO2023020165 A1 WO 2023020165A1 CN 2022105283 W CN2022105283 W CN 2022105283W WO 2023020165 A1 WO2023020165 A1 WO 2023020165A1
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WIPO (PCT)
Prior art keywords
opposite
along
magnet
diffusion sheet
layer
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PCT/CN2022/105283
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English (en)
French (fr)
Inventor
欧阳剑
徐旭升
张聪
胡震宇
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深圳市火乐科技发展有限公司
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Publication of WO2023020165A1 publication Critical patent/WO2023020165A1/zh

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    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/06—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the phase of light
    • 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
    • G02B27/48—Laser speckle optics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use

Definitions

  • the present disclosure relates to the technical field of projection display, and in particular, to a diffuser assembly, a light beam speckle elimination device, and a projector.
  • Beam projection display technology can most truly reproduce the rich and brilliant colors of the objective world and provide shocking expressiveness. Among them, eliminating speckle is a relatively popular research topic in beam projection technology. on coherence.
  • the commonly used beam speckle elimination structure adopts the form of a rotating diffuser wheel.
  • the principle is the superposition of multiple independent speckle patterns per unit time.
  • the diffuser close to the beam source is used to eliminate smaller spots, and the size of the required diffuser is smaller, but for the rotating diffuser wheel, the small-sized diffuser provides less random phase, and the speckle elimination effect is poor.
  • increasing the size of the diffusion wheel requires a larger rotating wheel. The actual application area is limited, and the application area of the diffusion sheet cannot be maximized, and the effect of dispersing speckles is poor.
  • a diffuser assembly a light beam speckle elimination device, and a projector.
  • the embodiment of the first aspect of the present disclosure proposes a diffusion sheet assembly, which is used for light beams to pass through and includes a first diffusion sheet, a fixed layer, and a second diffusion sheet stacked in sequence along the direction of light beam penetration;
  • the first diffusion sheet is connected to the fixing layer through a first elastic member, and the first elastic member is configured to be deformable in a direction parallel to the first diffusion sheet, so that the first diffusion sheet can
  • the sheet moves relative to the fixed layer;
  • the fixed layer is provided with a first light-transmitting portion for the light beam to pass through, and the first diffusion sheet and the second diffusion sheet are both aligned with the first light beam along the direction of the light beam passing through.
  • a light-transmitting part is oppositely arranged;
  • the second diffusion sheet is connected to the fixing layer through a second elastic member, and the second elastic member is configured to be deformable in a direction parallel to the second diffusion sheet, to enable the second diffusion sheet to move relative to the fixed layer;
  • the diffusion sheet assembly further includes a driving part for driving the first diffusion sheet and the second diffusion sheet along different Orientation moves relative to the fixed layer.
  • the diffuser assembly further includes a first moving layer and a second moving layer respectively disposed on both sides of the fixed layer along the light beam passing direction and spaced from the fixed layer;
  • the first The moving layer is provided with a second light-transmitting part for the beam to pass through and opposite to the first light-transmitting part along the light beam passing direction, the first diffusion sheet is connected to the second light-transmitting part, the The first elastic member connects the first moving layer and the fixed layer, and the first elastic member can make the first moving layer move relative to the fixed layer in a direction parallel to the first diffusion sheet ;
  • the second moving layer is provided with a third light-transmitting portion for light beams to pass through and opposite to the first light-transmitting portion, the second diffusion sheet is connected to the third light-transmitting portion, the The second elastic member connects the second moving layer and the fixed layer, and the second elastic member can make the second moving layer move relative to the fixed layer along a direction parallel to the second diffusion sheet ;
  • the driving unit is used to drive
  • the first light-transmitting portion is configured as a first opening
  • the second light-transmitting portion is configured as a second opening
  • the third light-transmitting portion is configured as a third opening
  • the first light-transmitting portion is configured as a second opening.
  • Three diffusion sheets are plugged at the first opening, the first diffusion sheet is plugged at the second opening, and the second diffusion sheet is plugged at the third opening.
  • the first moving layer includes two first sides opposite to each other along a first direction and two second sides opposite to each other along a second direction
  • the fixed layer includes Two third sides opposite to each other in one direction
  • the first elastic member includes a first U-shaped reed and a second U-shaped reed
  • the first U-shaped reed includes a first section, a second section connected in sequence segment and the third segment
  • the second U-shaped reed includes the fourth segment, the fifth segment and the sixth segment connected in sequence
  • the first segment is connected to one of the first sides, so
  • the second section is opposite to one of the second sides and arranged at intervals
  • the third section is opposite to the other first side and arranged at intervals
  • the third section is far away from the end of the second section Connected to one of the third sides
  • the fourth section is connected to the other first side and is opposite to the third section and arranged at intervals
  • the fifth section is opposite to the other second side and arranged at intervals
  • the second moving layer includes two first sides opposite to each other along the first direction and two second sides opposite to each other along the second direction
  • the fixed layer includes Two third sides opposite to each other in one direction
  • the second elastic member includes a first U-shaped reed and a second U-shaped reed
  • the first U-shaped reed includes a first section, a second section connected in sequence segment and the third segment
  • the second U-shaped reed includes the fourth segment, the fifth segment and the sixth segment connected in sequence
  • the first segment is connected to one of the first sides, so
  • the second section is opposite to one of the second sides and arranged at intervals
  • the third section is opposite to the other first side and arranged at intervals
  • the third section is far away from the end of the second section Connected to one of the third sides
  • the fourth section is connected to the other first side and is opposite to the third section and arranged at intervals
  • the fifth section is opposite to the other second side and arranged at intervals
  • one of the third sides is provided with a first engaging portion, and the other third side is provided with a second engaging portion;
  • the third segment is configured as a first L Shaped structure, the first L-shaped structure includes a first suspension section and a first fixed section, the first suspension section is opposite to the other first side along the first direction and arranged at intervals, and the first suspension section A third clamping portion that is clamped with the first clamping portion is formed on a fixed section.
  • one of the third sides is provided with a first engaging portion, and the other third side is provided with a second engaging portion;
  • the sixth segment is configured as a second L Shaped structure, the second L-shaped structure includes a second suspension section and a second fixed section, the second suspension section is opposite to the first section along the first direction and arranged at intervals, and the second fixed section
  • the segment is formed with a fourth engaging portion which engages with the second engaging portion.
  • the driving part includes a first driving unit and a second driving unit, and the first driving unit is used to drive the first moving layer and the second moving layer along the first
  • the second driving unit is used to drive the first moving layer and the second moving layer to move synchronously and reversely along the second direction.
  • the first driving unit includes a first driving magnet, a first conducting conductor, and a second conducting conductor, the first driving magnet is disposed on the fixed layer, and the first conducting conductor is disposed on the fixed layer.
  • the first electric conductor is arranged on the first moving layer and opposite to the first driving magnet
  • the second electric conductor is arranged on the second moving layer and opposite to the first driving magnet
  • the first electric conductor and In the magnetic field generated by the first drive magnet, the second current-carrying conductors are subjected to forces in the first direction that are equal in magnitude and opposite in direction.
  • the second driving unit includes a second driving magnet, a third conducting conductor, and a fourth conducting conductor
  • the second driving magnet is disposed on the fixed layer
  • the third conducting conductor is disposed on the fixed layer.
  • the first moving layer is arranged opposite to the second driving magnet
  • the fourth electric conductor is arranged on the second moving layer and opposite to the second driving magnet
  • the third electric conductor is arranged opposite to the second driving magnet.
  • the force in the second direction experienced by the fourth current-carrying conductor in the magnetic field generated by the second drive magnet is equal in magnitude and opposite in direction.
  • the first driving magnet there are two sets of the first driving magnet, the first conducting conductor and the second conducting conductor, and the second driving magnet, the third conducting conductor and the There are two fourth energized conductors;
  • the fixed layer is formed with two first installation grooves and two second installation grooves penetrating along the light beam penetration direction, and the two first installation grooves are located in the first light-transmitting part along the first direction.
  • the two sides of the first driving magnet are used to install the two first driving magnets, and the two second installation grooves are located on both sides of the first light-transmitting part along the second direction for installing the two first driving magnets.
  • the first inner surface of the first moving layer surrounds the second light-transmitting portion and is recessed with a first annular groove toward a direction away from the fixed layer, and the two first conducting conductors are both connected to the first In an annular groove and located on both sides of the second light-transmitting portion along the first direction, the two third conducting conductors are connected in the first annular groove and located in the second transparent portion two sides of the light portion along the second direction;
  • the second inner surface of the second moving layer surrounds the third light-transmitting portion and is recessed into a second annular groove toward a direction away from the fixed layer, and the two second conducting conductors are both connected to the first In the second annular groove and located on both sides of the third light-transmitting portion along the first direction, the two fourth conducting conductors are both connected in the second annular groove and located in the third transparent portion.
  • the light portion is along both sides of the second direction.
  • the diffuser assembly further includes a first annular flexible circuit board and a second annular flexible circuit board, the first annular flexible circuit board is connected to the inner bottom wall of the first annular groove , the two first energized conductors and the two third energized conductors are connected to the first annular flexible circuit board; the second annular flexible circuit board is connected to the inner bottom wall of the second annular groove , the two second conducting conductors and the two fourth conducting conductors are connected to the second annular flexible circuit board.
  • the diffusion sheet assembly further includes a controller, a first detection element and a second detection element, the first detection element is used to detect the first motion information of the first moving layer, so The second detecting element is used to detect the second motion information of the second moving layer, the first detecting element, the second detecting element, the first conducting conductor, the second conducting conductor, the Both the third energized conductor and the fourth energized conductor are electrically connected to the controller;
  • the controller is used to control the operation of the first energized conductor and the third energized conductor according to the first motion information detected by the first detection element, and is used to control the operation of the first energized conductor and the third energized conductor according to the information detected by the second detection element.
  • the second movement information controls the operation of the second energized conductor and the fourth energized conductor.
  • the first driving magnet includes a first single magnet and a second single magnet sequentially arranged along the first direction, and the first single magnet and the second single magnet Both the N pole and the S pole of the magnet are arranged along the beam passing direction, and the magnetic pole directions of the first single magnet and the second single magnet are opposite;
  • the first energization conductor is configured as a first energization coil
  • the second energization conductor is configured as a second energization coil
  • the first energization coil includes and extends along the second direction and is arranged at intervals along the first direction.
  • Two first straight line segments with opposite current directions the second energized coil includes two second straight line segments extending along the first direction and arranged at intervals along the second direction and with opposite current directions;
  • the first straight line segment is respectively used to be arranged opposite to the first single body magnet and the second single body magnet, and the two second straight line segments are respectively used to be arranged opposite to the first single body magnet and the second single body magnet.
  • the single magnets are arranged opposite to each other, and the current directions of the first straight section and the second straight section opposite to the first single magnet are opposite, and the first straight section opposite to the second single magnet
  • the current directions of the line segment and the second straight line segment are opposite.
  • the second driving magnet includes a third single magnet and a fourth single magnet sequentially arranged along the second direction, and the third single magnet and the fourth single magnet Both the N pole and the S pole of the magnet are arranged along the beam passing direction, and the magnetic pole directions of the third single magnet and the fourth single magnet are opposite;
  • the third energization conductor is configured as a third energization coil
  • the fourth energization conductor is configured as a fourth energization coil
  • the third energization coil includes and extends along the first direction and is arranged at intervals along the second direction.
  • Two third straight line segments with opposite current directions the fourth energized coil includes two fourth straight line segments extending along the first direction and arranged at intervals along the second direction with opposite current directions, the two The third straight line segment is used to be arranged opposite to the third single body magnet and the fourth single body magnet respectively, and the two fourth straight line segments are respectively used to be arranged opposite to the third single body magnet and the fourth single body magnet.
  • the single magnets are arranged opposite to each other, and the current directions of the third straight line section and the fourth straight line section opposite to the third single magnet are opposite, and the third straight line section opposite to the fourth single magnet segment and the fourth straight segment have opposite current directions.
  • the first driving magnet further includes a first neutral layer disposed between the first single magnet and the second single magnet, and the first neutral layer is configured as :
  • the first neutral layer is configured as :
  • the second driving magnet further includes a second neutral layer disposed between the third single magnet and the fourth single magnet, and the second neutral layer is configured as :
  • the first elastic member and the second elastic member are configured as an integrally formed elastic support member, and the elastic support member guides the first moving layer, the The fixed layer and the second mobile layer are connected to each other.
  • the first moving layer, the fixed layer, and the second moving layer are all configured as square plate structures, and each of the square plate structures includes a square plate body and a The connecting pieces at the four corners of the square plate structure coincide with the projections of the three square plate structures along the beam penetration direction;
  • Each of the connecting pieces is formed with a U-shaped opening, and the three U-shaped openings on every three connecting pieces whose projections coincide along the beam passing direction are oppositely arranged along the beam passing direction;
  • the elastic supporting member includes four steel wire springs, each of which extends along the light beam passing direction and sequentially passes through and connects the three U-shaped openings arranged oppositely along the light beam passing direction.
  • the diffuser assembly further includes a third diffuser, the third diffuser is connected to the first light-transmitting part, and the first diffuser, the second diffuser The two sheets and the third diffusion sheet are parallel to each other.
  • the embodiment of the first aspect of the present disclosure proposes a diffuser assembly, by arranging a first diffuser, a fixed layer, and a second diffuser along the beam passing direction, and the first diffuser is connected to the fixed layer through a first elastic member, The second diffuser is connected to the fixed layer through the second elastic member, and the fixed layer is provided with a first light-transmitting portion opposite to the first diffuser and the second diffuser along the light beam passing direction, so as to ensure that the light passing through the first diffuser The light beam of the sheet can be transmitted to the second diffusion sheet through the first light-transmitting portion.
  • the first elastic member can be deformed in a direction parallel to the first diffusion sheet
  • the second elastic member can be deformed in a direction parallel to the second diffusion sheet.
  • the first elastic member and the second elastic member can It plays the role of reset, and on the other hand, it can improve the stability of the movement of the first diffusion sheet and the second diffusion sheet.
  • a single-layer diffuser can generate a large number of random phases to achieve a good speckle suppression effect, while the drive unit drives the first diffuser and the second diffuser to move relative to the fixed layer in different directions, the random phase
  • the number increases exponentially, which improves the area utilization rate of the diffuser, better reduces the coherence of the beam, and improves the effect of dispersing speckle.
  • the embodiment of the second aspect of the present disclosure proposes a beam dispersing speckle device, including a beam emitter, a beam shrinking component, a light homogenizing component, and a scattering member arranged between the beam reducing component and the light uniforming component, the
  • the diffuser includes the above-mentioned diffuser assembly.
  • the embodiment of the third aspect of the present disclosure provides a projector, and the projector includes the device for dispersing light beams.
  • FIG. 1 provides a schematic diagram of an exploded structure of a diffuser assembly according to an embodiment of the present disclosure
  • FIG. 2 provides a schematic diagram of a three-dimensional structure of a diffuser assembly according to an embodiment of the present disclosure
  • Fig. 3 is the top view of Fig. 2;
  • Fig. 4 is a schematic diagram taken along a first direction in Fig. 2;
  • FIG. 5 is a schematic diagram of an exploded structure of a diffuser assembly provided by an embodiment of the present disclosure, wherein the first elastic member and the second elastic member are configured as an integrally formed elastic support member;
  • Fig. 6 is a schematic diagram of a three-dimensional structure of a diffusion sheet assembly provided by an embodiment of the present disclosure, wherein the first elastic member and the second elastic member are configured as an integrally formed elastic support member;
  • Fig. 7 is a schematic diagram of a light beam speckle elimination device provided by an embodiment of the present disclosure.
  • orientation words such as “inside and outside” refer to the inside and outside of the specific structural outline, and the used orientation words such as “first direction” and “second direction "Specifically, as shown in Figure 1, the terms used such as “first, second” and so on are only used to distinguish one element from another element, and do not have sequence or importance.
  • the present disclosure provides a diffuser assembly, which is used for light beams to pass through and includes a first diffuser 10 , a fixed layer 1 and a second diffuser in sequence along the direction of light beam penetration. 20.
  • the first diffusion sheet 10 is connected to the fixed layer 1 through the first elastic member 2, and the first elastic member 2 is configured to be able to deform along a direction parallel to the first diffusion sheet 10, so that the first diffusion sheet 10 is relatively
  • the fixed layer 1 moves; the fixed layer 1 is provided with a first light-transmitting portion 11 for the light beam to pass through, and the first diffusion sheet 10 and the second diffusion sheet 20 are arranged opposite to the first light-transmission portion 11 along the direction of the light beam penetration;
  • the second diffusion sheet 20 is connected to the fixed layer 1 through the second elastic member 3, and the second elastic member 3 is configured to be able to deform along a direction parallel to the second diffusion sheet 20, so that the second diffusion sheet 20 is relatively
  • the fixed layer 1 moves; the diffuser assembly further includes a driving part 4 for driving the first diffuser 10 and the second diffuser 20 to move relative to the fixed layer 1 in different directions.
  • the first diffusion sheet 10 by arranging the first diffusion sheet 10, the fixed layer 1, and the second diffusion sheet 20 along the light beam passing direction, and the first diffusion sheet 10 is connected to the fixed layer 1 through the first elastic member 2, the second diffusion sheet
  • the sheet 20 is connected to the fixed layer 1 through the second elastic member 3, and the fixed layer 1 is provided with a first light-transmitting portion 11 opposite to the first diffusing sheet 10 and the second diffusing sheet 20 along the light beam passing direction to ensure that the light beam passes through
  • the light beam passing through the first diffuser 10 can transmit to the second diffuser 20 through the first light-transmitting portion 11 .
  • the first elastic member 2 can be deformed in a direction parallel to the first diffusion sheet 10
  • the second elastic member 3 can be deformed in a direction parallel to the second diffusion sheet 20.
  • the first elastic member 2 and the second On the one hand, the elastic member 3 can play a reset role, and on the other hand, it can improve the stability of the movement of the first diffusion sheet 10 and the second diffusion sheet 20 .
  • the mobile diffuser 20 Since the principle of dynamic speckle dissipation is the superposition of multiple independent speckle patterns per unit time, increasing the number of random phases of the diffuser per unit time can obtain a better speckle dissipation effect, and the mobile diffuser 20 compared with the traditional The rotating diffuser makes full use of the different phase divergence angles of all positions on the diffuser, which can better reduce the coherence of the beam and provide better speckle dissipation effect under the same size.
  • a single-layer diffuser can generate a large number of random phases to achieve a good speckle suppression effect, and the driving unit 4 drives the first diffuser 10 and the second diffuser 20 to move relative to the fixed layer 1 in different directions.
  • the number of random phases increases exponentially, which improves the area utilization of the diffuser, better reduces the coherence of the beam, and improves the effect of dispersing speckles.
  • the diffuser assembly can also include a third diffuser 30, the third diffuser 30 is connected to the first light-transmitting portion 11, and the first diffuser 10, the second diffuser 20 and the third diffuser 30 two parallel to each other.
  • the third diffusion sheet 30 by disposing the third diffusion sheet 30 at the first light-transmitting part 11 of the fixed layer 1, the light beam passes through the first diffusion sheet 10, the third diffusion sheet 30 and the second diffusion sheet 20 in sequence, so that The effect of dispersing speckles is further improved.
  • the imaging quality can be improved.
  • the diffuser assembly also includes a first moving layer 5 and a second moving layer 6 respectively arranged on both sides of the fixed layer 1 along the beam passing direction and spaced from the fixed layer 1;
  • the moving layer 5 is provided with a second light-transmitting portion 51 for the light beam to pass through and opposite to the first light-transmitting portion 11 along the light beam passing direction, the first diffusion sheet 10 is connected to the second light-transmitting portion 51, and the first elastic Part 2 connects the first moving layer 5 and the fixed layer 1, and the first elastic part 2 can make the first moving layer 5 move relative to the fixed layer 1 along the direction parallel to the first diffusion sheet 10;
  • the first moving layer 5 and the second moving layer 6 serve as the installation basis of the first diffusing sheet 10 and the second diffusing sheet 20 respectively, which facilitates the installation of the first diffusing sheet 10 and the second diffusing sheet 20; Moreover, the first moving layer 5 and the second moving layer 6 are arranged on both sides of the fixed layer 1 along the light beam passing direction and are spaced apart from the fixed layer 1, which is beneficial to realize that the first moving layer 5 and the second moving layer 6 are opposite to each other.
  • the first light-transmitting portion 11 is configured as a first opening
  • the second light-transmitting portion 51 is configured as a second opening
  • the third light-transmitting portion 61 is configured as a third opening
  • the second light-transmitting portion 61 is configured as a third opening.
  • the three diffusers 30 are sealed and arranged at the first opening
  • the first diffuser 10 is sealed and arranged at the second opening
  • the second diffuser 20 is arranged and blocked at the third opening.
  • the first light-transmitting part 11 by setting the first light-transmitting part 11, the second light-transmitting part 51 and the third light-transmitting part 61 in the form of openings, while ensuring the light transmittance, it can also play a role in the diffusion sheet assembly. Good weight reduction effect facilitates the lightweight design of diffuser components.
  • the present disclosure does not limit the specific structural forms of the first light transmission part 11, the second light transmission part 51 and the third light transmission part 61.
  • the second light-transmitting portion 51 and the third light-transmitting portion 61 may also be made of a transparent material capable of passing light beams, which is not limited in the present disclosure.
  • the first moving layer 5 and/or the second moving layer 6 include two first sides 101 oppositely arranged along a first direction A and two second sides 101 arranged oppositely along a second direction B.
  • the side 102 , the square fixed plate includes two third sides 12 oppositely arranged along the first direction A.
  • the first elastic member 2 and/or the second elastic member 3 include a first U-shaped reed 103 and a second U-shaped reed 104, and the first U-shaped reed 103 includes a first segment 1031 and a second segment 1032 connected in sequence As well as the third segment 1033 , the second U-shaped reed 104 includes a fourth segment 1041 , a fifth segment 1042 and a sixth segment 1043 connected in sequence.
  • the first section 1031 is connected to one of the first side surfaces 101
  • the second section 1032 is opposite to and spaced apart from one of the second side surfaces 102 along the second direction B
  • the third section 1033 is arranged along the other first side surface 101.
  • the first direction A is opposite and arranged at intervals, and the end of the third section 1033 away from the second section 1032 is connected to one of the third side surfaces 12; part of the fourth section 1041 is connected to the other first side surface 101 and connected to the third section 1033
  • the fifth segment 1042 is opposite to and spaced apart from the other second side 102 along the second direction B
  • the sixth segment 1043 is opposite to the first segment 1031 along the first direction A and spaced apart.
  • the driving part 4 is used to drive the first moving layer 5 along the first direction A and/or along the second direction B relative to the fixed layer 1 to move back and forth, and is used to drive the second moving layer 6 to move back and forth relative to the fixed layer 1 along the first direction A and/or the second direction B.
  • the first elastic member 2 and/or the second elastic member 3 include a first U-shaped reed 103 and a second U-shaped reed 104, and the first segment 1031 of the first U-shaped reed 103 is connected to the first moving layer 5 And/or on one of the first side surfaces 101 of the second moving layer 6, the second section 1032 is opposite to and spaced apart from one of the second side surfaces 102 along the second direction, and the third section 1033 and the other first side surface 101 are arranged along the second direction.
  • a direction A is opposite and arranged at intervals, and the end of the third section 1033 away from the second section 1032 is connected to one of the third side surfaces 12 .
  • the fourth section 1041 of the second U-shaped reed 104 is connected to the other first side 101 and is opposite to and spaced from the third section 1033 along the first direction A, and the fifth section 1042 and the other second side 102 are arranged along the second The directions B are opposite and arranged at intervals, and the end of the sixth segment 1043 away from the fifth segment 1042 is connected to another third side 12 .
  • the first elastic member 2 and the second elastic member 3 are set to include the first U-shaped reed 103 and the second U-shaped reed 104, the first U-shaped reed 103 and the second U-shaped reed 104 are arranged in a double U-shaped coupling on the outer periphery of the first moving layer 5 and/or the second moving layer 6 and the fixed layer 1 to avoid Due to the arrangement of the elastic member, the size of the diffuser is increased in the thickness direction, the integration degree of the diffuser assembly in the thickness direction is improved, and the design of the diffuser assembly is light and thin.
  • the third section 1033 of the first U-shaped reed 103 is configured as a reed and is opposite to and spaced apart from the first side 101 of the first moving layer 5 and/or the second moving layer 6 along the first direction A, and the second The end of the third section 1033 away from the second section 1032 is connected to the third side 12, and because the sixth section 1043 of the second U-shaped reed 104 is opposite to the first section 1031 along the first direction A and arranged at intervals, and The end of the sixth section 1043 far away from the fifth section 1042 is connected to another third side 12 , then when the first moving layer 5 and/or the second moving layer 6 reciprocate along the first direction A under the driving action of the driving part 4 In the case of movement, the third segment 1033 swings and deforms with the connection point between its end and the third side 12 as the center; and the sixth segment 1043 swings with the connection point between its end and another third side 12 as the center of the circle. deformation.
  • the driving part 4 drives the first moving layer 5 and/or the second moving layer 6 to reciprocate along the first direction A
  • the sixth segment 1043 of the reed 104 is also deformed in the first direction A, ensuring the stability of the reciprocating movement of the first moving layer 5 and/or the second moving layer 6 in the first direction A and facilitating the movement of the first moving layer 5 And/or reset of the second mobile layer 6 .
  • the second section 1032 of the first U-shaped reed 103 is opposite to one of the second side surfaces 102 of the first moving layer 5 and/or the second moving layer 6 along the second direction B and arranged at intervals; and because the second U The fifth section 1042 of the shaped reed 104 is opposite to and spaced apart from the other second side 102 of the first moving layer 5 and/or the second moving layer 6 along the second direction B, then when the first moving layer 5 and/or When the second moving layer 6 reciprocates along the second direction B under the driving action of the driving part 4, the second section 1032 generates a swinging deformation with the end connected to the third section 1033 as the center, and the fifth section 1042 The end connected with the sixth section 1043 is the center of the circle to generate swing deformation.
  • the driving part 4 drives the first moving layer 5 and/or the second moving layer 6 to reciprocate along the second direction B
  • the fifth segment 1042 of the reed 104 is also deformed in the second direction B, ensuring the stability of the reciprocating movement of the first moving layer 5 and/or the second moving layer 6 in the second direction B and facilitating the movement of the first moving layer. 5 and/or reset of the second mobile layer 6.
  • first U-shaped reed 103 and the second U-shaped reed 104 have a certain rigidity in the thickness direction of the diffuser assembly, they can play a role in the first moving layer 5 and/or the second moving layer 6. Good supporting effect, avoiding the shaking of the first moving layer 5 and/or the second moving layer 6 in the thickness direction of the diffuser assembly during the reciprocating movement, and improving the first moving layer 5 and/or the second moving layer 6 Stability of reciprocating movement in the thickness direction.
  • the reciprocating movement mode of the first mobile layer 5 and the second mobile layer 6 for example, it can be:
  • the first moving layer 5 and the second moving layer 6 all reciprocate along the first direction A, but the difference is that the first moving layer 5 and the second moving layer 6 move back and forth synchronously;
  • the first moving layer 5 reciprocates along the second direction B, and the second moving layer 6 reciprocates along the first direction A;
  • a reciprocating movement cycle includes a first time period and a second time period.
  • the first moving layer 5 reciprocates along the first direction A
  • the second moving layer 6 moves along the second direction B reciprocating movement
  • the first moving layer 5 reciprocates along the second direction B
  • the second moving layer 6 reciprocates along the first direction A;
  • the above-mentioned first section 1031 can be opposite to one of the first side surfaces 101 and bonded to the first side surface 101 through glue point connection; the fourth section 1041 can be connected to the other first side surface
  • the side surfaces 101 are opposite and bonded to the first side 101 by means of spot glue connection, so as to realize the connection between the first U-shaped reed 103 and the second U-shaped reed 104 and the first moving layer 5 and/or the second moving layer. 6 for a solid connection.
  • the first moving layer 5 and the second moving layer 6 are configured as square moving plates
  • the fixed layer 1 is configured as a square fixed plate
  • the square moving plate and the square fixed plate are parallel to each other
  • the first The diffusion sheet 10 and the square moving plate are parallel to each other.
  • the first moving layer 5 and the second moving layer 6 are set as a square moving plate
  • the fixed layer 1 is set as a square fixed plate
  • the square moving plate includes two oppositely arranged along the first direction A
  • one of the third side surfaces 12 is provided with a first locking portion 121
  • the other third side 12 is provided with a second locking portion
  • the third section 1033 is configured as The first L-shaped structure
  • the first L-shaped structure includes a first suspension section 10331 and a first fixed section 10332
  • the first suspension section 10331 is opposite to the other first side 101 and arranged at intervals along the first direction A
  • the first fixed section A third engaging portion 10330 is formed on the section 10332 to engage with the first engaging portion 121 .
  • the sixth section 1043 is configured as a second L-shaped structure, and the second L-shaped structure includes a second floating section 10431 and a second fixed section 10432, and the second floating section 10431 is connected to the first section 1031 along the first The directions A are opposite and arranged at intervals, and the second fixing section 10432 is formed with a fourth engaging portion 10430 that is engaged with the second engaging portion.
  • the fixed section acts as a fixed connection
  • the suspension section It plays the role of elastic deformation in the first direction A; in addition, by setting the third engaging portion 10330 and the fourth engaging portion 10430 on the fixed section, the first engaging portion 121 and the second engaging portion 121 are provided on the third side 12
  • the two clamping parts realize the detachable connection between the first U-shaped reed 103 and the second U-shaped reed 104 and the fixed layer 1 through the cooperation of the clamping, which is convenient for installation and disassembly.
  • first engaging part 121 and second engaging part can be configured as a locking block
  • third engaging part 10330 and fourth engaging part 10430 can be configured as an engaging slot
  • first engaging part 121 and The second engaging portion may be configured as an engaging slot
  • third engaging portion 10330 and the fourth engaging portion 10430 may be configured as engaging blocks, which is not limited in the present disclosure.
  • this disclosure does not limit the specific connection method between the third section 1033 of the first U-shaped reed 103 and the sixth section 1043 of the second U-shaped reed 104 and the fixed layer 1, and bolt connection and other methods may also be used. .
  • the first U-shaped reed 103 and the second U-shaped reed 104 can be made of high elastic materials such as SUS301.
  • the driving part 4 may include a first driving unit and a second driving unit, the first driving unit is used to drive the first moving layer 5 and the second moving layer 6 to reciprocate synchronously and reversely along the first direction A;
  • the second driving unit is used to drive the first moving layer 5 and the second moving layer 6 to reciprocate along the second direction B synchronously and in reverse. Therefore, the first diffusing sheet 10 on the first moving layer 5 and the second diffusing sheet 20 on the second moving layer 6 generate more random phase quantities, weaken the coherence of the light beam, and achieve a good speckle suppression effect.
  • the first moving layer 5 and the second moving layer 6 move back and forth in a periodically changing manner. In one cycle, it is divided into two periods, the first period: the first driving unit drives the first moving layer 5 and the second moving layer 6 to move synchronously and reversely along the first direction A; the second period: the second driving The unit drives the first moving layer 5 and the second moving layer 6 to move in the second direction B synchronously and in opposite directions.
  • the present disclosure does not limit the reciprocating manner of the first moving layer 5 and the second moving layer 6 .
  • first driving unit and the second driving unit can be configured as any appropriate driving structure, which can drive the first moving layer 5 and the second moving layer 6 to reciprocate synchronously and separately.
  • first driving unit and the second driving unit may be configured as linear motors, driving cylinders, etc., which is not limited in the present disclosure.
  • the first drive unit may include a first drive magnet 411 , a first conduction conductor 412 and a second conduction conductor 413 , and the first drive magnet 411 is disposed on the fixed layer 1 , the first electric conductor 412 is arranged on the first moving layer 5 and is arranged opposite to the first drive magnet 411, the second electric conductor 413 is arranged on the second moving layer 6 and is arranged opposite to the first driving magnet 411, and the first electric conductor 412
  • the force in the first direction A received by the second current conductor 413 in the magnetic field generated by the first driving magnet 411 is equal in magnitude and opposite in direction.
  • the second driving unit includes a second driving magnet 421, a third conducting conductor 422, and a fourth conducting conductor 423, and the second driving magnet 421 is disposed on the fixed layer 1.
  • the third electric conductor 422 is arranged on the first moving layer 5 and is arranged opposite to the second drive magnet 421
  • the fourth electric conductor 423 is arranged on the second moving layer 6 and is arranged opposite to the second driving magnet 421
  • the third electric conductor 422 The force in the second direction B received by the fourth electric conductor 423 in the magnetic field generated by the second drive magnet 421 is equal in magnitude and opposite in direction.
  • the first energized conductor 412 is arranged on the first moving layer 5, the second energized conductor 413 is arranged on the second moving layer 6, and the force in the first direction A received by the two energized conductors is equal in magnitude and opposite in direction, then the second A moving layer 5 and a second moving layer 6 reciprocate synchronously and oppositely along the first direction A under the action of two ampere forces, and the first diffusing sheet 10 and the second diffusing sheet 20 are respectively arranged on the first On the moving layer 5 and the second moving layer 6 , the first diffusion sheet 10 and the second diffusion sheet 20 reciprocate along the first direction A synchronously and in opposite directions.
  • the second drive unit configured as the second drive magnet 421, the third energized conductor 422, and the fourth energized conductor 423 can drive the first diffusion sheet 10 and the second diffusion sheet 20 synchronously and oppositely along the second direction B reciprocating movement.
  • the decibel of noise can be reduced as much as possible, and the user experience of the diffuser assembly in specific product applications can be improved. experience.
  • the first drive magnet 411, the first energized conductor 412 and the second energized conductor 413 are set to two
  • the third energized conductor 422 and the fourth energized conductor 423 are all set to two.
  • the fixed layer 1 is formed with two first installation grooves and two second installation grooves penetrating along the light beam penetration direction, and the two first installation grooves are located in the first light-transmitting part 11 along the first direction A
  • the two sides are used to install two first drive magnets 411, and the two second installation grooves are located on both sides of the first light-transmitting part 11 along the second direction B for installing two second drive magnets 421;
  • the first inner surface of the moving layer 5 surrounds the second light-transmitting portion 51 and is recessed into a first annular groove 52 toward the direction away from the fixed layer 1, and the two first electric conductors 412 are connected in the first annular groove 52 and Located on both sides of the second light-transmitting portion 51 along the first direction A, the two third conductive conductors 422 are connected in the first annular groove 52 and located on both sides of the second light-transmitting portion 51 along the second direction B;
  • the second inner surface of the second moving layer 6 surrounds the third light-transmitting portion
  • the first drive magnet 411, the first energization conductor 412 and the second energization conductor 413 are set to two, and the second drive magnet 421, the third energization conductor 422 and the fourth energization conductor 423 There are two of them, which can effectively improve the driving force of the first driving unit and the second driving unit.
  • a mounting groove penetrating along the light beam passing direction is formed for installing the first driving magnet 411 and the second driving magnet 421.
  • the design of the mounting groove can at least achieve the following effects: first, lighten the The weight of the fixed layer 1 is convenient for the lightweight design of the diffuser assembly; secondly, the arrangement space is provided for the first drive magnet 411 and the second drive magnet 421, and the design for effectively reducing the dimension of the diffuser assembly in the thickness direction;
  • the first inner surface of a moving layer 5 is provided with a concave first annular groove 52
  • the second inner surface of the second moving layer 6 is provided with a concave second annular groove 62.
  • the first electric conductor 412 and The third electrical conductor 422 is disposed in the first annular groove 52
  • the second electrical conductor 413 and the fourth electrical conductor 423 are disposed in the second annular groove 62 .
  • the design of the first annular groove 52 and the second annular groove 62 can also play a good role in weight reduction; and the annular groove can also avoid the arrangement of the electrical conductors in the thickness direction in addition to providing arranging space for the electrical conductors. , to reduce the design of the dimension in the thickness direction of the diffuser assembly.
  • first installation grooves are arranged on both sides of the first light-transmitting part 11 along the first direction A for installing two first driving magnets 411, and two first electric conductors 412 are arranged on the first In the annular groove 52 and located on both sides of the second light-transmitting portion 51 along the first direction A, two second conducting conductors 413 are arranged in the second annular groove 62 and located in the third light-transmitting portion 61 along the first direction A.
  • the two driving units can also effectively utilize the arrangement space of the first moving layer 5 , the fixed layer 1 and the second moving layer 6 for reasonable layout.
  • the first light-transmitting portion 11 is configured as a first opening
  • the second light-transmitting portion 51 is configured as a second opening
  • the third light-transmitting portion 61 is configured as a third opening
  • the third diffusion sheet 30 is sealed and arranged on the second opening.
  • the first diffuser 10 is arranged to block the second opening
  • the second diffuser 20 is arranged to block the third opening. While ensuring good light transmission, it can also play a good role in reducing weight.
  • the diffuser assembly further includes a first annular flexible circuit board 7 and a second annular flexible circuit board 8 , the first annular flexible circuit board 7 is connected to the first annular groove 52 On the inner bottom wall, two first energized conductors 412 and two third energized conductors 422 are connected to the first annular flexible circuit board 7; the second annular flexible circuit board 8 is connected to the inner bottom wall of the second annular groove 62, two One second electric conductor 413 and two fourth electric conductors 423 are connected to the second annular flexible circuit board 8 .
  • the current-carrying conductor can be formed by winding the existing electrical connection wires on the ring-shaped flexible circuit board, without occupying the height of the diffuser assembly in the thickness direction, and the current-carrying conductor is directly arranged on the flexible circuit board to form a ring shape
  • a part of the flexible circuit board can also save the traditional coil assembly process such as winding, welding, and glue dispensing, and improve the convenience of operation.
  • the first ring-shaped flexible circuit board 7 and the second ring-shaped flexible circuit board 8 will vibrate slightly following the first moving layer 5 and the second moving layer 6 respectively, in terms of material selection, the first ring-shaped flexible circuit board 7 And the second ring-shaped flexible circuit board 8 can be a flexible anti-bending material.
  • the diffuser assembly may further include a controller (not shown), a first detection element 100 and a second detection element 200, and the first detection element 100 is used to detect The first motion information of the first moving layer 5, the second detection element 200 is used to detect the second motion information of the second moving layer 6, the first detection element 100, the second detection element 200, the first energized conductor 412, the second The energized conductor 413, the third energized conductor 422 and the fourth energized conductor 423 are all electrically connected to the controller; the controller is used to control the first energized conductor 412 and the third energized conductor 422 to work according to the first motion information detected by the first detection element 100 , and used to control the operation of the second energized conductor 413 and the fourth energized conductor 423 according to the second motion information detected by the second detection element 200 .
  • the controller adjusts the magnitude and direction of the current of the energized conductors arranged on the first moving layer 5, and/or sets the Adjust the magnitude and direction of the current of the energized conductor on the second moving layer 6, and then adjust the magnitude and direction of the force on the first moving layer 5 and/or the second moving layer 6, and
  • the modulus of elasticity of the first U-shaped reed 103 and the second U-shaped reed 104 is inconsistent or long-term use causes fatigue to cause the amplitude of the reciprocating movement of the first moving layer 5 and the second moving layer 6 to deviate from the design value, It can be fed back to the controller through the first detection element 100 and the second detection element 200, and the controller adjusts the current of the energized conductor to adjust the amplitude of the first moving layer 5 and the second moving layer 6 to meet the requirements of the diffuser assembly.
  • both the above-mentioned first detection element 100 and the second detection element 200 can be configured as a tunnel magneto-resistance sensor (TMR, Tunnel Magneto Resistance), the energized conductor is configured as a ring-shaped copper coil, and the tunnel magneto-resistance sensor is arranged on the ring-shaped copper coil
  • TMR tunnel magneto-resistance sensor
  • the interior of the system detects the strength of the magnetic field and feeds it back to the controller.
  • the controller can judge and control the movement conditions of the first moving layer 5 and the second moving layer 6 according to the change of the strength of the magnetic field.
  • the present disclosure does not limit the specific types of the first detection element 100 and the second detection element 200 .
  • the first driving magnet 411 includes a first single magnet 4111 and a second single magnet 4113 arranged in sequence along the first direction A, and the first single magnet 4111 and the second The N pole and the S pole of the single magnet 4113 are arranged along the beam passing direction, and the magnetic pole directions of the first single magnet 4111 and the second single magnet 4113 are opposite;
  • the first energization conductor 412 is configured as a first energization coil
  • the second energization conductor 413 is configured as a second energization coil.
  • the first energization coil includes two coils extending along the second direction B and arranged at intervals along the first direction A with opposite current directions.
  • the first straight line segment 4121, the second energized coil includes two second straight line segments 4131 extending along the first direction A and arranged at intervals along the second direction B, and the current direction is opposite; the two first straight line segments 4121 are respectively used to communicate with the first straight line segment A monolithic magnet 4111 and the second monolithic magnet 4113 are arranged oppositely, and two second straight line segments 4131 are respectively used to be arranged opposite to the first monolithic magnet 4111 and the second monolithic magnet 4113, and are arranged opposite to the first monolithic magnet 4111
  • the current direction of the opposite first straight line segment 4121 and the second straight line segment 4131 is opposite, and the current direction of the first straight line segment 4121 and the second straight line segment 4131 opposite to the second single magnet 4113 is opposite.
  • the second driving magnet 421 includes a third single magnet 4211 and a fourth single magnet 4213 arranged in sequence along the second direction B, and the N of the third single magnet 4211 and the fourth single magnet 4213 is Both the pole and the S pole are arranged along the beam passing direction, and the magnetic pole directions of the third single magnet 4211 and the fourth single magnet 4213 are opposite;
  • the third energization conductor 422 is configured as a third energization coil
  • the fourth energization conductor 423 is configured as a fourth energization coil.
  • the third energization coil includes two coils extending along the first direction A and arranged at intervals along the second direction B with opposite current directions.
  • the third straight line segment 4221, the fourth energized coil includes two fourth straight line segments 4231 extending along the first direction A and arranged at intervals along the second direction B, and the current direction is opposite, the two third straight line segments 4221 are respectively used to communicate with the first
  • the three-unit magnet 4211 and the fourth unit magnet 4213 are arranged oppositely, and the two fourth linear segments 4231 are respectively used to be arranged opposite to the third unit magnet 4211 and the fourth unit magnet 4213, and are arranged opposite to the third unit magnet 4211
  • the current directions of the third straight line segment 4221 and the fourth straight line segment 4231 opposite to each other are opposite, and the current directions of the third straight line segment 4221 and the fourth straight line segment 4231 opposite to the fourth single magnet 4213 are opposite.
  • the first driving magnet 411 further includes a first neutral layer 4112 disposed between the first single magnet 4111 and the second single magnet 4113, and the first neutral layer 4112 is configured to:
  • the first straight line segment 4121 and the second straight line segment 4131 opposite to the first single magnet 4111 can be The first straight segment 4121 and the second straight segment 4131 that are opposite to the second single magnet 4113 are not opposed to the first single magnet 4111 .
  • the second driving magnet 421 further includes a second neutral layer 4212 disposed between the third single magnet 4211 and the fourth single magnet 4213, and the second neutral layer 4212 is configured as: During the process of the third energized coil and the fourth energized coil moving synchronously and apart from the second driving magnet 421 along the second direction B, the third straight line segment 4221 opposite to the third single magnet 4211 and the second The four straight segments 4231 are not opposed to the fourth single magnet 4213 , and the third straight segment 4221 and the fourth straight segment 4231 opposite to the fourth single magnet 4213 are not opposed to the third single magnet 4211 .
  • the two first straight segments 4121 of the first energized coil are subjected to the Ampere force, and the two first straight segments 4121 are subjected to
  • the direction of the Ampere force extends along the first direction A and is in the same direction
  • the direction of the Ampere force received by the two second straight segments 4131 of the second energized coil extends along the first direction A and is in the same direction
  • the second straight segment The direction of the Ampere's force on 4131 is opposite to the direction of the Ampere's force on the first straight line segment 4121 .
  • the first energized coil and the second energized coil move along the first direction A under the action of the first single magnet 4111 and the second single magnet 4113, and because the first energized coil and the second energized coil are respectively arranged on
  • the first moving layer 5 and the second moving layer 6 move oppositely along the first direction A, that is, the first diffusing sheet 10 and the second diffusing sheet 20 move along the The first direction A moves in reverse.
  • the first energized coil and the second energized coil can make full use of the magnetic fields generated by the first single magnet 4111 and the second single magnet 4113 on both sides in the thickness direction, and there is no mutual interference between the first energized coil and the second energized coil , can operate independently.
  • the design of the first drive magnet 411 adopts two single magnets with opposite polarities to obtain a very high magnetic field utilization rate.
  • the first energized coil and the second energized coil can adopt a racetrack-shaped design.
  • the size of the single magnet 4113 in the second direction B can be equal to the length of the above-mentioned first straight line segment 4121 and the second straight line segment 4131, so as to compress the invalid arc segments of the first energized coil and the second energized coil to the shortest, The utilization rate of the first energization coil and the second energization coil is improved.
  • the design of the first driving magnet 411 , the first energizing coil and the second energizing coil can also compress the design in the thickness direction of the diffuser assembly as much as possible, which facilitates the light and thin design of the diffuser assembly.
  • the third energized coil and the fourth energized coil move oppositely along the second direction B, and because the third energized coil and the fourth energized coil
  • the coils are respectively arranged on the first moving layer 5 and the second moving layer 6, then the first moving layer 5 and the second moving layer 6 move oppositely along the second direction B, that is, the first diffusing sheet 10 and the second diffusing sheet
  • the sheet 20 moves in the opposite direction along the second direction B, and the specific driving process and the generated effects can be similarly referred to above, and will not be repeated here.
  • the first straight section 4121 and the second straight section 4131 opposite to the first single magnet 4111 will not It is opposite to the second single magnet 4113, and can make the first straight line segment 4121 and the second straight line segment 4131 opposite to the second single magnet 4113 not be opposite to the first single magnet 4111, so as to avoid the occurrence of contact with the first moving layer 5
  • the resistance opposite to the moving direction of the second moving layer 6 improves the smoothness of the reciprocating movement of the first moving layer 5 and the second moving layer 6 in the first direction A.
  • setting the second neutral layer 4212 between the third single magnet 4211 and the fourth single magnet 4213 can also avoid generating resistance opposite to the moving direction of the first moving layer 5 and the second moving layer 6, and improve Fluency of reciprocating movement of the first moving layer 5 and the second moving layer 6 in the second direction B.
  • the first elastic member 2 and the second elastic member 3 are constructed as an integrally formed elastic support 23, and the elastic support 23 guides the first The mobile layer 5, the fixed layer 1 and the second mobile layer 6 are connected to each other.
  • the elastic supporting member 23 can support the first moving layer 5 and the second moving layer 6 on the fixed layer 1, and under the driving action of the driving part 4, the elastic supporting member 23 can also Ensure the stability of the movement of the first moving layer 5 and the second moving layer 6, and at the same time, it can also play a driving role on the first moving layer 5 and the second moving layer 6 in the process of restoring the deformation of the elastic support member 23, so as to alleviate The driving load of the driving part 4.
  • the first moving layer 5, the fixed layer 1 and the second moving layer 6 are all configured as square plate structures, and each square plate structure includes a square plate body 105 and four plates arranged on the square plate body.
  • the elastic supporting member 23 includes four steel wire springs, each of which extends along the light beam passing direction and sequentially passes through and connects three U-shaped openings 1061 oppositely arranged along the light beam passing direction.
  • the four corners of the first moving layer 5, the fixed layer 1 and the second moving layer 6 are provided with a connecting piece 106, and a U-shaped opening 1061 is formed on the connecting piece 106, and the wire spring is configured as
  • the elastic support member 23 penetrates and connects the three U-shaped openings 1061 oppositely arranged along the light beam penetration direction, so as to realize the connection of the first moving layer 5 , the fixed layer 1 and the second moving layer 6 , and the assembly is simple and the connection is stable at the same time.
  • the present disclosure does not limit the structural form of the elastic support member 23, and the elastic support member 23 can also be set as a thin steel wire, etc., and the present disclosure does not limit this.
  • the diffuser assembly disclosed in the present disclosure has high space utilization efficiency and extremely small volume, and can be flexibly adapted to various optical structure designs, especially optical structures with strict limitations on space size.
  • a beam dispersing device which includes a beam emitter 300, a beam reducing component 400, a uniform light component 500 and a beam reducing component 400 and the diffuser 600 between the uniform light assembly 500, wherein the diffuser 600 includes the diffuser assembly described above.
  • the beam reduction component 400 can be a set of Galilean telescopes
  • the objective lens is a meniscus positive lens
  • the secondary mirror is a double-concave negative lens
  • the dodging component 500 can use a fly-eye lens or a dodging rod.
  • a collimator 700 can also be provided between the diffuser 600 and the uniform light assembly 500, and the collimator 700 can adopt a piece or a group of condenser lenses, and the beam dispersing device can make full use of the first Different phase divergence angles at all positions on the diffuser 10 and the second diffuser 20 provide a better speckle dissipation effect under the same size.
  • a projector which includes the above-mentioned light beam dispersing device, and the projector has all the beneficial effects of the above-mentioned diffusion sheet assembly and beam dispersing device, and will not elaborate too much here repeat.

Abstract

一种扩散片组件、光束消散斑装置以及投影仪，扩散片组件沿光束穿设方向包括依次层叠的第一扩散片（10）、固定层（1）以及第二扩散片（20）；第一扩散片（10）通过第一弹性件（2）连接于固定层（1），且第一弹性件（2）能够沿平行于第一扩散片（10）的方向发生变形，以能够使得第一扩散片（10）相对于固定层（1）移动；固定层（1）设置有供光束穿设的第一透光部（11），且第一扩散片（10）和第二扩散片（20）与第一透光部（11）相对设置；第二扩散片（20）通过第二弹性件（3）连接于固定层（1），且第二弹性件（3）能够沿平行于第二扩散片（20）的方向发生变形，以能够使得第二扩散片（20）相对于固定层（1）移动；驱动部（4）用于驱动第一扩散片（10）和第二扩散片（20）沿不同的方向相对于固定层（1）移动。

Description

扩散片组件、光束消散斑装置以及投影仪
相关申请的交叉引用
本公开要求在2021年08月16日提交中国专利局、申请号为202110937530.9、名称为“扩散片组件、光束消散斑装置以及投影仪”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及投影显示技术领域，具体地，涉及一种扩散片组件、光束消散斑装置以及投影仪。
背景技术
光束投影显示技术，能够最真实地再现客观世界丰富、绚丽的色彩，提供震撼的表现力，其中，消除散斑是光束投影技术中比较热门的研究课题，其原理主要通过降低光束在空间和时间上的相干性。
常用消除光束散斑结构多采用旋转型的扩散轮形式，其原理为单位时间内多个独立散斑图案的叠加，在转速一定的情况下，增加单位时间内扩散片的随机相位数量，即可获得更好的消斑效果。靠近光束光源的扩散片用于消除更小的光斑，所需要的扩散片的尺寸更小，但是针对旋转型的扩散轮，小尺寸扩散片提供的随机相位少，消斑效果差。另外，增大扩散轮的尺寸需要配合尺寸更大的旋转轮，实际应用到的面积有限，无法实现扩散片应用面积的最大化，消散斑效果差。
发明内容
根据本公开的各种实施例，提供一种扩散片组件、光束消散斑装置和投影仪。
本公开第一方面实施例提出了一种扩散片组件，所述扩散片组件用于供光束穿设且沿光束穿设方向包括依次层叠的第一扩散片、固定层以及第二扩散片；所述第一扩散片通过第一弹性件连接于所述固定层，且所述第一弹性件配置为：能够沿平行于所述第一扩散片的方向发生变形，以能够使得所述第一扩散片相对于所述固定层移动；所述固定层设置有供光束穿设的第一透光部，且所述第一扩散片和所述第二扩散片均沿光束穿设方向与所述第一透光部相对设置；所述第二扩散片通过第二弹性件连接于所述固定层， 且所述第二弹性件配置为：能够沿平行于所述第二扩散片的方向发生变形，以能够使得所述第二扩散片相对于所述固定层移动；所述扩散片组件还包括驱动部，所述驱动部用于驱动所述第一扩散片和所述第二扩散片沿不同的方向相对于所述固定层移动。
根据本公开的一个实施例，所述扩散片组件还包括分别设置于所述固定层沿光束穿设方向两侧并与该固定间隔设置的第一移动层和第二移动层；所述第一移动层上设置有供光束穿设且沿光束穿设方向与所述第一透光部相对的第二透光部，所述第一扩散片连接于所述第二透光部处，所述第一弹性件连接所述第一移动层和所述固定层，且所述第一弹性件能够使所述第一移动层沿平行于所述第一扩散片的方向相对于所述固定层移动；所述第二移动层上设置有供光束穿设且与所述第一透光部相对的第三透光部，所述第二扩散片连接于所述第三透光部处，所述第二弹性件连接所述第二移动层和所述固定层，且所述第二弹性件能够使得所述第二移动层沿平行于所述第二扩散片的方向相对于所述固定层移动；所述驱动部用于驱动所述第一移动层和所述第二移动层沿不同的方向相对于所述固定层移动。
根据本公开的一个实施例，所述第一透光部构造为第一开口，所述第二透光部构造为第二开口，所述第三透光部构造为第三开口，所述第三扩散片封堵设置于所述第一开口处，所述第一扩散片封堵设置于所述第二开口处，所述第二扩散片封堵设置于所述第三开口处。
根据本公开的一个实施例，所述第一移动层包括沿第一方向相对设置的两个第一侧面和沿第二方向相对设置的两个第二侧面，所述固定层包括沿所述第一方向相对设置的两个第三侧面；所述第一弹性件包括第一U形簧片和第二U形簧片，所述第一U形簧片包括依次连接的第一段、第二段以及第三段，所述第二U形簧片包括依次连接的第四段、第五段以及第六段；未驱动时，所述第一段连接于其中一个所述第一侧面，所述第二段与其中一个所述第二侧面相对并间隔设置，所述第三段与另一个所述第一侧面相对并间隔设置，且所述第三段远离所述第二段的端部连接于其中一个所述第三侧面；所述第四段连接于另一个所述第一侧面并与所述第三段相对并间隔设置，所述第五段与另一个所述第二侧面相对并间隔设置，所述第六段与所述第一段相对并间隔设置，且所述第六段远离所述第五段的端部连接于另一个所述第三侧面；所述驱动部用于驱动所述第一移动层沿所述第一方向和/或沿所述第二方向相对于所述固定层往复移动，并用于驱动所述第二移动层沿所述第一方向和/或所述第二方向相对于所述固定层往复移动。
根据本公开的一个实施例，所述第二移动层包括沿第一方向相对设置的两个第一侧面和沿第二方向相对设置的两个第二侧面，所述固定层包括沿所述第一方向相对设置的两个第三侧面；所述第二弹性件包括第一U形簧片和第二U形簧片，所述第一U形簧片包括依次连接的第一段、第二段以及第三段，所述第二U形簧片包括依次连接的第四段、第五段以及第六段；未驱动时，所述第一段连接于其中一个所述第一侧面，所述第二段与其中一个所述第二侧面相对并间隔设置，所述第三段与另一个所述第一侧面相对并间隔设置，且所述第三段远离所述第二段的端部连接于其中一个所述第三侧面；所述第四段连接于另一个所述第一侧面并与所述第三段相对并间隔设置，所述第五段与另一个所述第二侧面相对并间隔设置，所述第六段与所述第一段相对并间隔设置，且所述第六段远离所述第五段的端部连接于另一个所述第三侧面；所述驱动部用于驱动所述第一移动层沿所述第一方向和/或沿所述第二方向相对于所述固定层往复移动，并用于驱动所述第二移动层沿所述第一方向和/或所述第二方向相对于所述固定层往复移动。
根据本公开的一个实施例，其中一个所述第三侧面上设置有第一卡接部，另一个所述第三侧面上设置有第二卡接部；所述第三段构造为第一L形结构，所述第一L形结构包括第一悬浮段和第一固定段，所述第一悬浮段与另一个所述第一侧面沿所述第一方向相对并间隔设置，且所述第一固定段上形成有与所述第一卡接部卡接的第三卡接部。
根据本公开的一个实施例，其中一个所述第三侧面上设置有第一卡接部，另一个所述第三侧面上设置有第二卡接部；所述第六段构造为第二L形结构，所述第二L形结构包括第二悬浮段和第二固定段，所述第二悬浮段与所述第一段沿所述第一方向相对并间隔设置，且所述第二固定段上形成有与所述第二卡接部卡接的第四卡接部。
根据本公开的一个实施例，所述驱动部包括第一驱动单元和第二驱动单元，所述第一驱动单元用于驱动所述第一移动层和所述第二移动层沿所述第一方向同步且反向地往复移动；所述第二驱动单元用于驱动所述第一移动层和所述第二移动层沿所述第二方向同步且反向地往复移动。
根据本公开的一个实施例，所述第一驱动单元包括第一驱动磁铁、第一通电导体以及第二通电导体，所述第一驱动磁铁设置于所述固定层，所述第一通电导体设置于所述第一移动层并与所述第一驱动磁铁相对设置，所述第二通电导体设置于所述第二移动层并与所述第一驱动磁铁相对设置，所述第一通电导体和所述第二通电导体在所述第一驱动磁铁产生的磁场内受到在所述第一方向的力大小相等且方向相反。
根据本公开的一个实施例，所述第二驱动单元包括第二驱动磁铁、第三通电导体以及第四通电导体，所述第二驱动磁铁设置于所述固定层所述第三通电导体设置于所述第一移动层并与所述第二驱动磁铁相对设置，所述第四通电导体设置于所述第二移动层并与所述第二驱动磁铁相对设置，所述第三通电导体和所述第四通电导体在所述第二驱动磁铁产生的磁场内受到的在所述第二方向的力大小相等且方向相反。
根据本公开的一个实施例，所述第一驱动磁铁、所述第一通电导体以及所述第二通电导体均设置为两个，所述第二驱动磁铁，所述第三通电导体以及所述第四通电导体均设置为两个；
所述固定层上形成有沿光束穿设方向贯通的两个第一安装槽和两个第二安装槽，两个所述第一安装槽位于所述第一透光部沿所述第一方向的两侧以用于安装两个所述第一驱动磁铁，两个所述第二安装槽位于所述第一透光部沿所述第二方向的两侧以用于安装两个所述第二驱动磁铁；
所述第一移动层的第一内表面围绕所述第二透光部并朝向远离所述固定层的方向凹陷出第一环形凹槽，两个所述第一通电导体均连接于所述第一环形凹槽内并位于所述第二透光部沿所述第一方向的两侧，两个所述第三通电导体均连接于所述第一环形凹槽内并位于所述第二透光部沿所述第二方向的两侧；
所述第二移动层的第二内侧面围绕所述第三透光部并朝向远离所述固定层的方向凹陷出第二环形凹槽，两个所述第二通电导体均连接于所述第二环形凹槽内并位于所述第三透光部沿所述第一方向的两侧，两个所述第四通电导体均连接于所述第二环形凹槽内并位于所述第三透光部沿所述第二方向的两侧。
根据本公开的一个实施例，所述扩散片组件还包括第一环形柔性电路板和第二环形柔性电路板，所述第一环形柔性电路板连接于所述第一环形凹槽的内底壁，两个所述第一通电导体和两个所述第三通电导体连接于所述第一环形柔性电路板；所述第二环形柔性电路板连接于所述第二环形凹槽的内底壁，两个所述第二通电导体和两个所述第四通电导体连接于所述第二环形柔性电路板。
根据本公开的一个实施例，所述扩散片组件还包括控制器、第一检测元件以及第二检测元件，所述第一检测元件用于检测所述第一移动层的第一运动信息，所述第二检测元件用于检测所述第二移动层的第二运动信息，所述第一检测元件、所述第二检测元件、所述第一通电导体、所述第二通电导体、所述第三通电导体以及所述第四通电导体均与 所述控制器电连接；
所述控制器用于根据所述第一检测元件检测的所述第一运动信息控制所述第一通电导体和所述第三通电导体工作，且用于根据所述第二检测元件检测的所述第二运动信息控制所述第二通电导体和所述第四通电导体工作。
根据本公开的一个实施例，所述第一驱动磁铁包括沿所述第一方向依次布置的第一单体磁铁和第二单体磁铁，所述第一单体磁铁和所述第二单体磁铁的N极和S极均沿光束穿设方向布置，且所述第一单体磁铁和所述第二单体磁铁的磁极方向相反；
所述第一通电导体构造为第一通电线圈，所述第二通电导体构造为第二通电线圈，所述第一通电线圈包括沿所述第二方向延伸并沿所述第一方向间隔设置且电流方向相反的两个第一直线段，所述第二通电线圈包括沿所述第一方向延伸并沿所述第二方向间隔设置且电流方向相反的两个第二直线段；两个所述第一直线段分别用于与所述第一单体磁铁和所述第二单体磁铁相对设置，两个所述第二直线段分别用于与所述第一单体磁铁和所述第二单体磁铁相对设置，且与所述第一单体磁铁相对的所述第一直线段和所述第二直线段的电流方向相反，与所述第二单体磁铁相对的所述第一直线段和所述第二直线段的电流方向相反。
根据本公开的一个实施例，所述第二驱动磁铁包括沿所述第二方向依次布置的第三单体磁铁和第四单体磁铁，所述第三单体磁铁和所述第四单体磁铁的N极和S极均沿光束穿设方向布置，且所述第三单体磁铁和所述第四单体磁铁的磁极方向相反；
所述第三通电导体构造为第三通电线圈，所述第四通电导体构造为第四通电线圈，所述第三通电线圈包括沿所述第一方向延伸并沿所述第二方向间隔设置且电流方向相反的两个第三直线段，所述第四通电线圈包括沿所述第一方向延伸并沿所述第二方向间隔设置且电流方向相反的两个第四直线段，两个所述第三直线段分别用于与所述第三单体磁铁和所述第四单体磁铁相对设置，两个所述第四直线段分别用于与所述第三单体磁铁和所述第四单体磁铁相对设置，且与所述第三单体磁铁相对的所述第三直线段和所述第四直线段的电流方向相反，与所述第四单体磁铁相对的所述第三直线段和所述第四直线段的电流方向相反。
根据本公开的一个实施例，所述第一驱动磁铁还包括设置于所述第一单体磁铁和第二单体磁铁之间的第一中性层，且所述第一中性层配置为：在所述第一通电线圈和所述第二通电线圈相对于所述第一驱动磁铁沿所述第一方向同步且相离地运动的过程中，能 够使得与第一单体磁铁相对的所述第一直线段和所述第二直线段不会与所述第二单体磁铁相对，并能够使得与所述第二单体磁铁相对的所述第一直线段和所述第二直线段不会与所述第一单体磁铁相对。
根据本公开的一个实施例，所述第二驱动磁铁还包括设置于所述第三单体磁铁和第四单体磁铁之间的第二中性层，且所述第二中性层配置为：在所述第三通电线圈和所述第四通电线圈相对于所述第二驱动磁铁沿所述第二方向同步且相离地运动的过程中，能够使得与第三单体磁铁相对的所述第三直线段和所述第四直线段不会与所述第四单体磁铁相对，并能够使得与所述第四单体磁铁相对的所述第三直线段和所述第四直线段不会与所述第三单体磁铁相对。
根据本公开的一个实施例，所述第一弹性件和所述第二弹性件构造为一体成型的弹性支撑件，所述弹性支撑件沿光束穿设方向将所述第一移动层、所述固定层以及所述第二移动层相互连接。
根据本公开的一个实施例，所述第一移动层、所述固定层以及所述第二移动层均构造为方形板结构，每个所述方形板结构包括方形板本体以及设置在方形板本体的四个拐角处的连接片，且三个所述方形板结构沿光束穿设方向的投影重合；
每个所述连接片上均形成有U形开口，且沿光束穿设方向的投影重合的每三个所述连接片上的三个所述U形开口沿光束穿设方向相对设置；
所述弹性支撑件包括四个钢丝弹簧，每个所述钢丝弹簧均沿光束穿设方向延伸并依次贯穿连接沿光束穿设方向相对设置的三个所述U形开口。
根据本公开的一个实施例，所述扩散片组件还包括第三扩散片，所述第三扩散片连接于所述第一透光部处，且所述第一扩散片、所述第二扩散片以及所述第三扩散片两两相互平行。
本公开第一方面实施例提出了一种扩散片组件，通过沿光束穿设方向布置第一扩散片、固定层以及第二扩散片，且第一扩散片通过第一弹性件连接于固定层，第二扩散片通过第二弹性件连接于固定层，并且，固定层上设置有沿光束穿设方向与第一扩散片和第二扩散片相对的第一透光部，保证穿过第一扩散片的光束能够透过该第一透光部传递至第二扩散片上。此外，该第一弹性件能够沿平行于第一扩散片的方向发生变形，第二弹性件能够沿平行于第二扩散片的方向发生变形，该第一弹性件和第二弹性件一方面可以起到复位的作用，另外一方面可以提高第一扩散片和第二扩散片移动的稳定性。
由于动态消散斑的原理为单位时间内多个独立散斑图案的叠加，增加单位时间内的扩散片的随机相位数量即可获得更好的消散斑效果，而移动式的扩散片对比传统的旋转式的扩散片，充分地利用了扩散片上所有位置的不同相位发散角，能够更好地减弱光束的相干性，在相同尺寸下能够提供更好的消散斑效果。单层的扩散片即可产生大量的随机相位，实现良好的散斑抑制效果，而通过驱动部驱动第一扩散片和第二扩散片沿不同的方向相对于固定层移动的过程中，随机相位数量呈指数级增加，提高扩散片的面积利用率，更好地减弱光束的相干性，提高消散斑效果。
本公开第二方面实施例提出了一种光束消散斑装置，包括光束发射器、缩束组件、匀光组件以及设置在所述缩束组件和所述匀光组件之间的散射件，所述散射件包括所述的扩散片组件。
本公开第三方面实施例提出了一种投影仪，所述投影仪包括所述的光束消散斑装置。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为本公开实施例提供了一种扩散片组件的爆炸结构示意图；
图2为本公开实施例提供了一种扩散片组件的立体结构示意图；
图3为图2的俯视图；
图4为图2沿第一方向剖得的示意图；
图5为本公开实施例提供了一种扩散片组件的爆炸结构示意图，其中，第一弹性件和第二弹性件构造为一体成型的弹性支撑件；
图6为本公开实施例提供了一种扩散片组件的立体结构示意图，其中第一弹性件和第二弹性件构造为一体成型的弹性支撑件；
图7为本公开实施例提供了一种光束消散斑装置的示意图。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附 图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
在本公开中，在未作相反说明的情况下，使用的方位词如“内、外”指的是具体结构轮廓的内和外，使用的方位词如“第一方向”和“第二方向”具体可以参照图1所示，使用的术语如“第一、第二”等仅是为了区分一个要素和另外一个要素，并不具有顺序性和重要性。
参照图1至图6所示，本公开提供一种扩散片组件，该扩散片组件用于供光束穿设且沿光束穿设方向依次包括第一扩散片10、固定层1以及第二扩散片20。第一扩散片10通过第一弹性件2连接于固定层1，且第一弹性件2配置为：能够沿平行于第一扩散片10的方向发生变形，以能够使得第一扩散片10相对于固定层1移动；固定层1设置有供光束穿设的第一透光部11，且第一扩散片10和第二扩散片20均沿光束穿设方向与第一透光部11相对设置；第二扩散片20通过第二弹性件3连接于固定层1，且第二弹性件3配置为：能够沿平行于第二扩散片20的方向发生变形，以能够使得第二扩散片20相对于固定层1移动；扩散片组件还包括驱动部4，驱动部4用于驱动第一扩散片10和第二扩散片20沿不同的方向相对于固定层1移动。
在上述技术方案中，通过沿光束穿设方向布置第一扩散片10、固定层1以及第二扩散片20，且第一扩散片10通过第一弹性件2连接于固定层1，第二扩散片20通过第二弹性件3连接于固定层1，并且，固定层1上设置有沿光束穿设方向与第一扩散片10和第二扩散片20相对的第一透光部11，保证穿过第一扩散片10的光束能够透过该第一透光部11传递至第二扩散片20上。此外，该第一弹性件2能够沿平行于第一扩散片10的方向发生变形，第二弹性件3能够沿平行于第二扩散片20的方向发生变形，该第一弹性件2和第二弹性件3一方面可以起到复位的作用，另外一方面可以提高第一扩散片10和第二扩散片20移动的稳定性。
由于动态消散斑的原理为单位时间内多个独立散斑图案的叠加，增加单位时间内的扩散片的随机相位数量即可获得更好的消散斑效果，而移动式的扩散片20对比传统的旋转式的扩散片，充分地利用了扩散片上所有位置的不同相位发散角，能够更好地减弱光束的相干性，在相同尺寸下能够提供更好的消散斑效果。而单层的扩散片即可产生大量的随机相位，实现良好的散斑抑制效果，而通过驱动部4驱动第一扩散片10和第二扩散片20沿不同的方向相对于固定层1移动的过程中，随机相位数量呈指数级增加，提高扩散片的面积利用率，更好地减弱光束的相干性，提高消散斑效果。
参照图1所示，扩散片组件还可以包括第三扩散片30，第三扩散片30连接于第一透光部11处，且第一扩散片10、第二扩散片20以及第三扩散片30两两相互平行。
在该实施方式中，通过在固定层1的第一透光部11处设置第三扩散片30，光束依次穿设第一扩散片10、该第三扩散片30以及第二扩散片20，从而更进一步地提高消散斑的效果，此外，通过将第一扩散片10、第二扩散片20以及第三扩散片30两两相互平行设置，能够提高成像的质量。
参照图1和图2所示，扩散片组件还包括分别设置于固定层1沿光束穿设方向两侧并与该固定层1间隔设置的第一移动层5和第二移动层6；第一移动层5上设置有供光束穿设且沿光束穿设方向与第一透光部11相对的第二透光部51，第一扩散片10连接于第二透光部51处，第一弹性件2连接第一移动层5和固定层1，且第一弹性件2能够使第一移动层5沿平行于第一扩散片10的方向相对于固定层1移动；第二移动层6上设置有供光束穿设且与第一透光部11相对的第三透光部61，第二扩散片20连接于第三透光部61处，第二弹性件3连接第二移动层5和固定层1，且第二弹性件3能够使得第二移动层6沿平行于第二扩散片20的方向相对于固定层1移动；驱动部4用于驱动第一移动层5和第二移动层6沿不同的方向相对于固定层1移动。
在该实施方式中，第一移动层5和第二移动层6分别作为第一扩散片10和第二扩散片20的安装基础，便于实现第一扩散片10和第二扩散片20的安装；且该第一移动层5和第二移动层6设置于固定层1沿光束穿设方向的两侧并与该固定层1间隔设置，有利于实现第一移动层5和第二移动层6相对于固定层1的移动，减小摩擦；此外，通过在第一移动层5上设置与第一透光部11相对的第二透光部51、在第二移动层6上设置与第一透光部11相对的第三透光部61，且第一扩散片10设置于第二透光部51处，第二扩散片20设置于第三透光部61处，保证该扩散片组件在光束穿设方向的透光性，保证该扩散片组件的正常工作。
在一种实施方式中，参照图1所示，第一透光部11构造为第一开口，第二透光部51构造为第二开口，第三透光部61构造为第三开口，第三扩散片30封堵设置于第一开口处，第一扩散片10封堵设置于第二开口处，第二扩散片20封堵设置于第三开口处。
在该实施方式中，通过将第一透光部11、第二透光部51以及第三透光部61均设置为开口的形式，保证透光性的同时还能够起到对该扩散片组件良好的减重效果，便于扩散片组件的轻量化设计。
但是，本公开并不对该第一透光部11、第二透光部51以及第三透光部61具体的结构形式作限定，在其他的实施方式中，该第一透光部11、第二透光部51以及第三透光部61也可以由能够供光束穿设的透明材质制成，本公开对此不作限定。
参照图1至图3所示，第一移动层5和/或第二移动层6包括沿第一方向A相对设置的两个第一侧面101和沿第二方向B相对设置的两个第二侧面102，方形固定板包括沿第一方向A相对设置的两个第三侧面12。
第一弹性件2和/或第二弹性件3包括第一U形簧片103和第二U形簧片104，第一U形簧片103包括依次连接的第一段1031、第二段1032以及第三段1033，第二U形簧片104包括依次连接的第四段1041、第五段1042以及第六段1043。
未驱动时，第一段1031连接于其中一个第一侧面101，第二段1032与其中一个第二侧面102沿第二方向B相对并间隔设置，第三段1033与另一个第一侧面101沿第一方向A相对并间隔设置，且第三段1033远离第二段1032的端部连接于其中一个第三侧面12；部分第四段1041连接于另一个第一侧面101并与第三段1033沿第一方向A相对并间隔设置，第五段1042与另一个第二侧面102沿第二方向B相对并间隔设置，第六段1043与第一段1031沿第一方向A相对并间隔设置，且第六段1043远离第五段1042的端部连接于另一个第三侧面12；驱动部4用于驱动第一移动层5沿第一方向A和/或沿第二方向B相对于固定层1往复移动，并用于驱动第二移动层6沿第一方向A和/或第二方向B相对于固定层1往复移动。
首先，第一弹性件2和/或第二弹性件3包括第一U形簧片103和第二U形簧片104，第一U形簧片103的第一段1031连接第一移动层5和/或第二移动层6的其中一个第一侧面101上，第二段1032与其中一个第二侧面102沿第二方向相对并间隔设置，第三段1033与另一个第一侧面101沿第一方向A相对并间隔设置，且该第三段1033远离第二段1032的端部连接于其中一个第三侧面12上。第二U形簧片104的第四段1041连接于另一个第一侧面101并与第三段1033沿第一方向A相对并间隔设置，第五段1042与另一个第二侧面102沿第二方向B相对并间隔设置，且第六段1043远离第五段1042的端部连接于另一个第三侧面12上。
从扩散片组件的厚度(即光束穿设方向)设计的角度来说，通过将第一弹性件2和第二弹性件3均设置为包括第一U形簧片103和第二U形簧片104的形式，该第一U形簧片103和第二U形簧片104呈双U形耦合设置在第一移动层5和/或第二移动层6以及 固定层1的侧部外周，避免因弹性件的设置而在扩散件的厚度方向上进行尺寸的增加，提高扩散片组件在厚度方向上的集成度，便于扩散片组件轻薄化的设计。
因第一U形簧片103的第三段1033构造为簧片并与第一移动层5和/或第二移动层6的第一侧面101沿第一方向A相对并间隔设置，且该第三段1033远离第二段1032的端部连接于第三侧面12上，又因，第二U形簧片104的第六段1043与第一段1031沿第一方向A相对并间隔设置，且第六段1043远离第五段1042的端部连接于另一个第三侧面12，则当第一移动层5和/或第二移动层6在驱动部4的驱动作用下沿第一方向A往复移动的情况下，第三段1033以其端部与第三侧面12的连接点为圆心产生摆动形变；且第六段1043以其端部与另一个第三侧面12的连接点为圆心产生摆动形变。
简言之，在驱动部4驱动第一移动层5和/或第二移动层6沿第一方向A往复移动的情况下，第一U形簧片103的第三段1033和第二U形簧片104的第六段1043也在第一方向A上产生变形，保证第一移动层5和/第二移动层6在该第一方向A上往复运动的平稳性且便于第一移动层5和/或第二移动层6的复位。
因第一U形簧片103的第二段1032与第一移动层5和/或第二移动层6的其中一个第二侧面102沿第二方向B相对并间隔设置；又因，第二U形簧片104的第五段1042与第一移动层5和/或第二移动层6的另一个第二侧面102沿第二方向B相对并间隔设置，则当第一移动层5和/或第二移动层6在驱动部4的驱动作用下沿第二方向B往复移动的情况下，第二段1032以与第三段1033连接的端部为圆心产生摆动形变，且第五段1042以与第六段1043连接的端部为圆心产生摆动形变。
简言之，在驱动部4驱动第一移动层5和/或第二移动层6沿第二方向B往复移动的情况下，第一U形簧片103的第二段1032和第二U形簧片104的第五段1042也在第二方向B上产生变形，保证第一移动层5和/或第二移动层6在该第二方向B上往复运动的平稳性且便于第一移动层5和/或第二移动层6的复位。
另外，因第一U形簧片103和第二U形簧片104在扩散片组件的厚度方向上均具备一定的刚性，因而可以对第一移动层5和/或第二移动层6起到良好的支撑作用，避免第一移动层5和/或第二移动层6在往复移动的过程中在扩散片组件的厚度方向上发生晃动，提高第一移动层5和/或第二移动层6在厚度方向的往复移动的稳定性。
关于第一移动层5和第二移动层6往复移动方式的选择，例如可以是：
1)、第一移动层5和第二移动层6均沿第一方向A往复移动，但是不同的是，第一 移动层5和第二移动层6同步相离地往复移动；
2)、第一移动层5沿第一方向A往复移动，第二移动层6沿第二方向B往复移动；
3)、第一移动层5沿第二方向B往复移动，第二移动层6沿第一方向A往复移动；
4)、在一个往复移动周期内包括第一时间段和第二时间段，在第一时间段内，第一移动层5沿第一方向A往复移动，且第二移动层6沿第二方向B往复移动；在第二时间段内，第一移动层5沿第二方向B往复移动，第二移动层6沿第一方向A往复移动；
以上仅是第一移动层5和第二移动层6往复移动的几种实施方式，并不起限定作用。
还有一点需要作出说明的是：上述的第一段1031可以与其中一个第一侧面101相对并通过点胶连接的方式贴合在该第一侧面101上；第四段1041与另外一个第一侧面101相对并通过点胶连接的方式贴合在该第一侧面101上，从而实现第一U形簧片103和第二U形簧片104与第一移动层5和/或第二移动层6的稳固连接。
可选地，参照图1所示，第一移动层5和第二移动层6均构造为方形移动板，固定层1构造为方形固定板，方形移动板和方形固定板相互平行，且第一扩散片10与方形移动板相互平行。
在该实施方式中，将第一移动层5和第二移动层6设置为方形移动板，将固定层1设置为方形固定板，且该方形移动板包括沿第一方向A相对设置的两个第一侧面101和沿第二方向B相对设置的两个第二侧面102；换句话说，该方形移动板相邻的两个侧面的延伸方向分别为第一方向A和第二方向B，结构简单的同时能够保证第一移动层5和第二移动层6在第一方向A和第二方向B上相对于固定层1往复移动的流畅性，避免在移动过程中方形移动板和方形固定板之间产生结构干涉。
可选地，参照图1至图3所示，其中一个第三侧面12上设置有第一卡接部121，另一个第三侧面12上设置有第二卡接部；第三段1033构造为第一L形结构，第一L形结构包括第一悬浮段10331和第一固定段10332，第一悬浮段10331与另一个第一侧面101沿第一方向A相对并间隔设置，且第一固定段10332上形成有与第一卡接部121卡接的第三卡接部10330。
在其他的实施方式中，第六段1043构造为第二L形结构，第二L形结构包括第二悬浮段10431和第二固定段10432，第二悬浮段10431与第一段1031沿第一方向A相对并间隔设置，且第二固定段10432上形成有与第二卡接部卡接的第四卡接部10430。
通过将第一U形簧片103的第三段1033和第二U形簧片104的第六段1043均设置 包括悬浮段和固定段的L形结构，固定段起固定连接的作用，悬浮段起在第一方向A上的弹性变形的作用；另外，通过在固定段上设置第三卡接部10330和第四卡接部10430，在第三侧面12上设置第一卡接部121和第二卡接部，通过卡接的配合实现第一U形簧片103和第二U形簧片104与固定层1的可拆卸连接；便于安装与拆卸。
例如，上述的第一卡接部121和第二卡接部可以构造为卡块，第三卡接部10330和第四卡接部10430可以构造为卡槽，或者，第一卡接部121和第二卡接部可以构造为卡槽，第三卡接部10330和第四卡接部10430可以构造为卡块，本公开对此不作限定。
但是，本公开并不对该第一U形簧片103的第三段1033和第二U形簧片104的第六段1043与固定层1的具体连接方式作限定，也可以采用螺栓连接等方式。
另外，在材料的选择上，该第一U形簧片103和第二U形簧片104可以由SUS301等高弹性材料制成。
可选地，驱动部4可以包括第一驱动单元和第二驱动单元，第一驱动单元用于驱动第一移动层5和第二移动层6沿第一方向A同步且反向地往复移动；第二驱动单元用于驱动第一移动层5和第二移动层6沿第二方向B同步且反向地往复移动。从而使第一移动层5上的第一扩散片10以及第二移动层6上的第二扩散片20产生更多的随机相位数量，减弱光束的相干性，实现良好的散斑抑制效果。
在一种实施方式中，第一移动层5和第二移动层6以周期性变化的形式进行往复的移动。在一个周期内，分为两个时段，第一时段：第一驱动单元驱动第一移动层5和第二移动层6沿第一方向A同步且反向地移动；第二时段：第二驱动单元驱动第一移动层5和第二移动层6沿第二方向B同步且反向地移动。但是，本公开并不对第一移动层5和第二移动层6往复移动的方式作限定。
此外，该第一驱动单元和第二驱动单元可以构造为任意适当的驱动结构，能够驱动第一移动层5和第二移动层6同步且相离地往复运动即可。例如，该第一驱动单元和第二驱动单元均可以构造为直线电机、驱动气缸等，本公开对此不作限定。
在一种实施方式中，参照图1和图4所示，第一驱动单元可以包括第一驱动磁铁411、第一通电导体412以及第二通电导体413，第一驱动磁铁411设置于固定层1，第一通电导体412设置于第一移动层5并与第一驱动磁铁411相对设置，第二通电导体413设置于第二移动层6并与第一驱动磁铁411相对设置，第一通电导体412和第二通电导体413在第一驱动磁铁411产生的磁场内受到的在第一方向A的力大小相等且方向相反。
在另外一种实施方式中，参照图1和图4所示，第二驱动单元包括第二驱动磁铁421、第三通电导体422以及第四通电导体423，第二驱动磁铁421设置于固定层1，第三通电导体422设置于第一移动层5并与第二驱动磁铁421相对设置，第四通电导体423设置于第二移动层6并与第二驱动磁铁421相对设置，第三通电导体422和第四通电导体423在第二驱动磁铁421产生的磁场内受到的在第二方向B的力大小相等且方向相反。
第一通电导体412设置于第一移动层5上，第二通电导体413设置于第二移动层6上，且两个通电导体受到的在第一方向A的力大小相等且方向相反，则第一移动层5和第二移动层6在两个安培力的作用下同步且反向地沿第一方向A往复移动，而第一扩散片10和第二扩散片20又是分别设置于第一移动层5和第二移动层6上的，则第一扩散片10和第二扩散片20同步且反向地沿第一方向A往复移动。同理，构造为第二驱动磁铁421、第三通电导体422以及第四通电导体423的第二驱动单元能够驱动第一扩散片10和第二扩散片20同步且反向地沿第二方向B往复移动。
而通过将第一驱动单元和第二驱动单元设置为驱动磁铁和通电导体的形式，除了驱动稳定之外，还能够尽可能地降低噪音的分贝，提高该扩散片组件在具体产品应用中的用户体验。
参照图1和图4所示，第一驱动磁铁411、第一通电导体412以及第二通电导体413均设置为两个，第二驱动磁铁421，第三通电导体422以及第四通电导体423均设置为两个；固定层1上形成有沿光束穿设方向贯通的两个第一安装槽和两个第二安装槽，两个第一安装槽位于第一透光部11沿第一方向A的两侧以用于安装两个第一驱动磁铁411，两个第二安装槽位于第一透光部11沿第二方向B的两侧以用于安装两个第二驱动磁铁421；第一移动层5的第一内表面围绕第二透光部51并朝向远离固定层1的方向凹陷出第一环形凹槽52，两个第一通电导体412均连接于第一环形凹槽52内并位于第二透光部51沿第一方向A的两侧，两个第三通电导体422均连接于第一环形凹槽52内并位于第二透光部51沿第二方向B的两侧；第二移动层6的第二内侧面围绕第三透光部61并朝向远离固定层的方向凹陷出第二环形凹槽62，两个第二通电导体413均连接于第二环形凹槽62内并位于第三透光部61沿第一方向A的两侧，两个第四通电导体423均连接于第二环形凹槽62内并位于第三透光部61沿第二方向B的两侧。
在该实施方式中，首先，将第一驱动磁铁411、第一通电导体412以及第二通电导体413均设置为两个，将第二驱动磁铁421、第三通电导体422以及第四通电导体423均设 置为两个，可以有效地提高第一驱动单元和第二驱动单元的驱动力。
其次，在固定层1上形成有沿光束穿设方向贯通的安装槽以用于安装第一驱动磁铁411和第二驱动磁铁421，该安装槽的设计至少能够实现以下的作用：第一、减轻固定层1的重量，便于扩散片组件的轻量化设计；第二、给第一驱动磁铁411和第二驱动磁铁421提供布置空间，并有效地减小扩散片组件厚度方向尺寸的设计；在第一移动层5的第一内表面设置有内凹的第一环形凹槽52，在第二移动层6的第二内表面设置有内凹的第二环形凹槽62，第一通电导体412和第三通电导体422设置于第一环形凹槽52内，第二通电导体413和第四通电导体423设置于第二环形凹槽62内。该第一环形凹槽52和第二环形凹槽62的设计也能够起到良好的减重作用；而环形凹槽在向通电导体提供布置空间之外，也能够避免通电导体在厚度方向的布置，减小扩散片组件厚度方向尺寸的设计。
此外，将两个第一安装槽设置于位于第一透光部11沿第一方向A的两侧以用于安装两个第一驱动磁铁411，将两个第一通电导体412设置在第一环形凹槽52内并位于第二透光部51沿第一方向A的两侧，将两个第二通电导体413设置于第二环形凹槽62内并位于第三透光部61沿第一方向A的两侧；从而实现该第一驱动单元的合理布局，有效地利用第一移动层5、固定层1以及第二移动层6的布置空间；同理，可知的是，本公开的第二驱动单元也能够有效地利用第一移动层5、固定层1以及第二移动层6的布置空间以进行合理的布局。
可选地，第一透光部11构造为第一开口，第二透光部51构造为第二开口，第三透光部61构造为第三开口，第三扩散片30封堵设置于第一开口处，第一扩散片10封堵设置于第二开口处，第二扩散片20封堵设置于第三开口处。在保证良好的透光性的同时还能够起到良好的减重作用。
可选地，参照图1和图4所示，扩散片组件还包括第一环形柔性电路板7和第二环形柔性电路板8，第一环形柔性电路板7连接于第一环形凹槽52的内底壁，两个第一通电导体412和两个第三通电导体422连接于第一环形柔性电路板7；第二环形柔性电路板8连接于第二环形凹槽62的内底壁，两个第二通电导体413和两个第四通电导体423连接于第二环形柔性电路板8。
在该实施方式中，通电导体可以利用环形柔性电路板上现有的电连接线缠绕而形成，不会占用扩散片组件在厚度方向上的高度，通电导体直接布置在柔性电路板上，成为环形柔性电路板的一部分，还能够省去传统绕线、焊接、点胶固定等线圈组装流程，提高 操作的便利性。
因第一环形柔性电路板7和第二环形柔性电路板8会分别跟随第一移动层5和第二移动层6发生轻微的振动，故在材料的选择上，该第一环形柔性电路板7和第二环形柔性电路板8可以为柔性抗弯折材料。
在其他的实施方式中，参照图1和图4所示，扩散片组件还可以包括控制器(未图示)、第一检测元件100以及第二检测元件200，第一检测元件100用于检测第一移动层5的第一运动信息，第二检测元件200用于检测第二移动层6的第二运动信息，第一检测元件100、第二检测元件200、第一通电导体412、第二通电导体413、第三通电导体422以及第四通电导体423均与控制器电连接；控制器用于根据第一检测元件100检测的第一运动信息控制第一通电导体412和第三通电导体422工作，且用于根据第二检测元件200检测的第二运动信息控制第二通电导体413和第四通电导体423工作。
在该实施方式中，通过设置用于检测第一移动层5的第一运动信息的第一检测元件100和用于检测第二移动层6的第二运动信息的第二检测元件200，从而可以实时地对第一移动层5和第二移动层6的运动状态进行监测，也即能够对第一移动层5上的第一扩散片10和第二移动层6上的第二扩散片20的运动状态进行监测；在此基础上，通过设置与检测元件和通电导体电连接的控制器，则当检测元件检测到第一移动层5和/或第二移动层6的运动状态发生异常并需要对第一移动层5和/或第二移动层6的运动状态进行调整时，控制器通过对设置于第一移动层5上的通电导体的电流大小和方向进行调整，和/或，对设置于第二移动层6上的通电导体的电流大小和方向进行调整，进而调整第一移动层5和/或第二移动层6所受的力的大小和方向，进而对第一移动层5和第二移动层6的运动状态进行调整，也即实现对第一扩散片10和第二扩散片20运动状态的调整。
另外，当第一U形簧片103和第二U形簧片104的弹性模量不一致或者长期使用产生疲劳导致第一移动层5和第二移动层6的往复移动的振幅偏离设计值时，可以通过第一检测元件100和第二检测元件200反馈至控制器，控制器调节通电导体的电流大小，以对第一移动层5和第二移动层6的振幅进行调节，满足扩散片组件的正常使用；且使得第一U形簧片103和第二U形簧片104具备更宽容的生产和组装公差以节省成本，同时可增加第一U形簧片103和第二U形簧片104的使用寿命。
可选地，上述的第一检测元件100和第二检测元件200均可以构造为隧道磁阻传感器(TMR，Tunnel Magneto Resistance)，通电导体构造为环形铜线圈，隧道磁阻传感器 设置于环形铜线圈的内部以对磁场的强弱进行检测并反馈给控制器，控制器根据磁场的强弱变化可判断第一移动层5和第二移动层6的运动状况并进行控制。但是本公开并不对该第一检测元件100和第二检测元件200的具体类型作限定。
可选地，参照图1和图4所示，第一驱动磁铁411包括沿第一方向A依次布置的第一单体磁铁4111和第二单体磁铁4113，第一单体磁铁4111和第二单体磁铁4113的N极和S极均沿光束穿设方向布置，且第一单体磁铁4111和第二单体磁铁4113的磁极方向相反；
第一通电导体412构造为第一通电线圈，第二通电导体413构造为第二通电线圈，第一通电线圈包括沿第二方向B延伸并沿第一方向A间隔设置且电流方向相反的两个第一直线段4121，第二通电线圈包括沿第一方向A延伸并沿第二方向B间隔设置且电流方向相反的两个第二直线段4131；两个第一直线段4121分别用于与第一单体磁铁4111和第二单体磁铁4113相对设置，两个第二直线段4131分别用于与第一单体磁铁4111和第二单体磁铁4113相对设置，且与第一单体磁铁4111相对的第一直线段4121和第二直线段4131的电流方向相反，与第二单体磁铁4113相对的第一直线段4121和第二直线段4131的电流方向相反。
在其他的实施方式中，第二驱动磁铁421包括沿第二方向B依次布置的第三单体磁铁4211和第四单体磁铁4213，第三单体磁铁4211和第四单体磁铁4213的N极和S极均沿光束穿设方向布置，且第三单体磁铁4211和第四单体磁铁4213的磁极方向相反；
第三通电导体422构造为第三通电线圈，第四通电导体423构造为第四通电线圈，第三通电线圈包括沿第一方向A延伸并沿第二方向B间隔设置且电流方向相反的两个第三直线段4221，第四通电线圈包括沿第一方向A延伸并沿第二方向B间隔设置且电流方向相反的两个第四直线段4231，两个第三直线段4221分别用于与第三单体磁铁4211和第四单体磁铁4213相对设置，两个第四直线段4231分别用于与第三单体磁铁4211和第四单体磁铁4213相对设置，且与第三单体磁铁4211相对的第三直线段4221和第四直线段4231的电流方向相反，与第四单体磁铁4213相对的第三直线段4221和第四直线段4231的电流方向相反。
可选地，第一驱动磁铁411还包括设置于第一单体磁铁4111和第二单体磁铁4113之间的第一中性层4112，该第一中性层4112配置为：在第一通电线圈和第二通电线圈相对于第一驱动磁铁411沿第一方向A同步且相离地运动的过程中，能够使得与第一单体 磁铁4111相对的第一直线段4121和第二直线段4131不会与第二单体磁铁4113相对，并能够使得与第二单体磁铁4113相对的第一直线段4121和第二直线段4131不会与第一单体磁铁4111相对。
在另外一种实施方式中，第二驱动磁铁421还包括设置于第三单体磁铁4211和第四单体磁铁4213之间的第二中性层4212，该第二中性层4212配置为：在第三通电线圈和第四通电线圈相对于第二驱动磁铁421沿第二方向B同步且相离地运动的过程中，能够使得与第三单体磁铁4211相对的第三直线段4221和第四直线段4231不会与第四单体磁铁4213相对，并能够使得与第四单体磁铁4213相对的第三直线段4221和第四直线段4231不会与第三单体磁铁4211相对。
该实施方式中，在第一单体磁铁4111和第二单体磁铁4113的作用下，第一通电线圈的两个第一直线段4121均受到安培力，且两个第一直线段4121受到的安培力的方向均沿第一方向A延伸且同向，第二通电线圈的两个第二直线段4131受到的安培力的方向均沿第一方向A延伸且同向，并且该第二直线段4131所受安培力的方向与第一直线段4121所受安培力的方向相反。则第一通电线圈和第二通电线圈在第一单体磁铁4111和第二单体磁铁4113的作用下沿第一方向A方向地移动，又因第一通电线圈和第二通电线圈分别设置于第一移动层5和第二移动层6上，则第一移动层5和第二移动层6沿第一方向A反向地移动，也即，第一扩散片10和第二扩散片20沿第一方向A反向地移动。
第一通电线圈和第二通电线圈能够充分地利用第一单体磁铁4111和第二单体磁铁4113在厚度方向两侧产生的磁场，且第一通电线圈和第二通电线圈之间无相互干扰，可独立运作。第一驱动磁铁411的设计采用两个极性相反的单体磁铁可以获得极高的磁场利用率，第一通电线圈和第二通电线圈可以采用跑道形设计，第一单体磁铁4111和第二单体磁铁4113在第二方向B上的尺寸可以与上述的第一直线段4121和第二直线段4131长度相等，以将第一通电线圈和第二通电线圈的无效圆弧段压缩至最短，提高第一通电线圈和第二通电线圈的利用率。且该第一驱动磁铁411、第一通电线圈以及第二通电线圈的设计也可以尽可能地压缩在扩散片组件厚度方向上的设计，便于扩散片组件的轻薄化设计。
类似地，在第三单体磁铁4211和第四单体磁铁4213的作用下，第三通电线圈和第四通电线圈沿第二方向B反向地移动，又因第三通电线圈和第四通电线圈分别设置于第一移动层5和第二移动层6，则第一移动层5和第二移动层6沿第二方向B反向地移动， 也即，第一扩散片10和第二扩散片20沿第二方向B反向地移动，具体的驱动过程和所产生的效果可以类似参照上文，在此不作赘述。
另外，通过在第一单体磁铁4111和第二单体磁铁4113之间设置第一中性层4112，可以使得第一单体磁铁4111相对的第一直线段4121和第二直线段4131不会与第二单体磁铁4113相对，并能够使得第二单体磁铁4113相对的第一直线段4121与第二直线段4131不会与第一单体磁铁4111相对，避免产生与第一移动层5和第二移动层6移动方向相反的阻力，提高第一移动层5和第二移动层6在第一方向A往复移动的流畅性。
同样地，在第三单体磁铁4211和第四单体磁铁4213之间设置第二中性层4212，也能够避免产生与第一移动层5和第二移动层6移动方向相反的阻力，提高第一移动层5和第二移动层6在第二方向B往复移动的流畅性。
在另外一种实施方式中，参照图5和图6所示，第一弹性件2和第二弹性件3构造为一体成型的弹性支撑件23，弹性支撑件23沿光束穿设方向将第一移动层5、固定层1以及第二移动层6相互连接。
在该实施方式中，弹性支撑件23一方面可以将第一移动层5和第二移动层6支撑设置在固定层1上，且在驱动部4的驱动作用下，该弹性支撑件23还能够保证第一移动层5和第二移动层6移动的平稳性，同时在弹性支撑件23恢复其形变的过程中也能够起到对第一移动层5和第二移动层6的驱动作用，减轻驱动部4的驱动载荷。
参照图5和图6所示，第一移动层5、固定层1以及第二移动层6均构造为方形板结构，每个方形板结构包括方形板本体105以及设置在方形板本体的四个拐角处的连接片106，且三个方形板结构沿光束穿设方向的投影重合；每个连接片106上均形成有U形开口1061，且沿光束穿设方向的投影重合的每三个连接片106上的三个U形开口1061沿光束穿设方向相对设置；
弹性支撑件23包括四个钢丝弹簧，每个钢丝弹簧均沿光束穿设方向延伸并依次贯穿连接沿光束穿设方向相对设置的三个U形开口1061。
在该实施方式中，通过在第一移动层5、固定层1以及第二移动层6的四个拐角均设置连接片106，且连接片106上形成有U形开口1061，构造为钢丝弹簧的弹性支撑件23沿光束穿设方向将相对设置的三个U形开口1061贯穿连接，从而实现第一移动层5、固定层1以及第二移动层6的连接，组装简单的同时连接稳固。
但是，本公开并不对弹性支撑件23的结构形式作限定，该弹性支撑件23也可以设 置为细钢丝等，本公开对此不作限定。
总的说来，本公开的扩散片组件具有极高的空间利用率并具有极小的体积，可以灵活适配于各类光学结构设计中，特别是对空间大小具有严格限制的光学结构中。
根据本公开的第二个方面，如图7所示，还提供一种光束消散斑装置，该光束消散斑装置包括光束发射器300、缩束组件400、匀光组件500以及设置在缩束组件400和匀光组件500之间的散射件600，其中，散射件600包括上文介绍的扩散片组件。
可选地，缩束组件400可以为一组伽利略架构望远镜，物镜为弯月正透镜，次镜为双凹负透镜，匀光组件500可采用复眼透镜或匀光棒。
另外，如图7所示，散射件600和匀光组件500之间还可以设置准直件700，准直件700可以采用一片或一组聚光透镜，该光束消散斑装置能够充分利用第一扩散片10和第二扩散片20上所有位置的不同的相位发散角，在相同的尺寸下提供更好的消散斑效果。
根据本公开的第三个方面，还提供一种投影仪，该投影仪包括上述的光束消散斑装置，该投影仪具有上述扩散片组件和光束消散斑装置的所有有益效果，在此不作过多赘述。
以上结合附图详细描述了本公开的优选实施方式，但是，本公开并不限于上述实施方式中的具体细节，在本公开的技术构思范围内，可以对本公开的技术方案进行多种简单变型，这些简单变型均属于本公开的保护范围。
另外需要说明的是，本公开的各种不同的实施方式之间，以及具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，其同样应当视为本公开所公开的内容。

Claims (22)

  1. 一种扩散片组件，其特征在于，所述扩散片组件用于供光束穿设且沿光束穿设方向包括依次层叠的第一扩散片(10)、固定层(1)以及第二扩散片(20)；
    所述第一扩散片(10)通过第一弹性件(2)连接于所述固定层(1)，且所述第一弹性件(2)配置为：能够沿平行于所述第一扩散片(10)的方向发生变形，以能够使得所述第一扩散片(10)相对于所述固定层(1)移动；
    所述固定层(1)设置有供光束穿设的第一透光部(11)，且所述第一扩散片(10)和所述第二扩散片(20)均沿光束穿设方向与所述第一透光部(11)相对设置；
    所述第二扩散片(20)通过第二弹性件(3)连接于所述固定层(1)，且所述第二弹性件(3)配置为：能够沿平行于所述第二扩散片(20)的方向发生变形，以能够使得所述第二扩散片(20)相对于所述固定层(1)移动；
    所述扩散片组件还包括驱动部(4)，所述驱动部(4)用于驱动所述第一扩散片(10)和所述第二扩散片(20)沿不同的方向相对于所述固定层(1)移动。
  2. 根据权利要求1所述的扩散片组件，其特征在于，所述扩散片组件还包括分别设置于所述固定层(1)沿光束穿设方向两侧并与该固定层(1)间隔设置的第一移动层(5)和第二移动层(6)；
    所述第一移动层(5)上设置有供光束穿设且沿光束穿设方向与所述第一透光部(11)相对的第二透光部(51)，所述第一扩散片(10)连接于所述第二透光部(51)处，所述第一弹性件(2)连接所述第一移动层(5)和所述固定层(1)，且所述第一弹性件(2)能够使所述第一移动层(5)沿平行于所述第一扩散片(10)的方向相对于所述固定层(1)移动；
    所述第二移动层(6)上设置有供光束穿设且与所述第一透光部(11)相对的第三透光部(61)，所述第二扩散片(20)连接于所述第三透光部(61)处，所述第二弹性件(3)连接所述第二移动层(5)和所述固定层(1)，且所述第二弹性件(3)能够使得所述第二移动层(6)沿平行于所述第二扩散片(20)的方向相对于所述固定层(1)移动；
    所述驱动部(4)用于驱动所述第一移动层(5)和所述第二移动层(6)沿不同的方向相对于所述固定层(1)移动。
  3. 根据权利要求2所述的扩散片组件，其特征在于，所述第二透光部(51)构造为第二开口，所述第三透光部(61)构造为第三开口，所述第一扩散片(10)封堵设置于所述第二开口处，所述第二扩散片(20)封堵设置于所述第三开口处。
  4. 根据权利要求2所述的扩散片组件，其特征在于，所述第一移动层(5)包括沿第一方向(A)相对设置的两个第一侧面(101)和沿第二方向(B)相对设置的两个第二侧面(102)，所述固定层(1)包括沿所述第一方向(A)相对设置的两个第三侧面(12)；
    所述第一弹性件(2)包括第一U形簧片(103)和第二U形簧片(104)，所述第一U形簧片(103)包括依次连接的第一段(1031)、第二段(1032)以及第三段(1033)，所述第二U形簧片(104)包括依次连接的第四段(1041)、第五段(1042)以及第六段(1043)；
    未驱动时，所述第一段(1031)连接于其中一个所述第一侧面(101)，所述第二段(1032)与其中一个所述第二侧面(102)相对并间隔设置，所述第三段(1033)与另一个所述第一侧面(101)相对并间隔设置，且所述第三段(1033)远离所述第二段(1032)的端部连接于其中一个所述第三侧面(12)；
    所述第四段(1041)连接于另一个所述第一侧面(101)并与所述第三段(1033)相对并间隔设置，所述第五段(1042)与另一个所述第二侧面(102)相对并间隔设置，所述第六段(1043)与所述第一段(1031)相对并间隔设置，且所述第六段(1043)远离所述第五段(1042)的端部连接于另一个所述第三侧面(12)；
    所述驱动部(4)用于驱动所述第一移动层(5)沿所述第一方向(A)和/或沿所述第二方向(B)相对于所述固定层(1)往复移动，并用于驱动所述第二移动层(6)沿所述第一方向(A)和/或所述第二方向(B)相对于所述固定层(1)往复移动。
  5. 根据权利要求2所述的扩散片组件，其特征在于，所述第二移动层(6)包括沿第一方向(A)相对设置的两个第一侧面(101)和沿第二方向(B)相对设置的两个第二侧面(102)，所述固定层(1)包括沿所述第一方向(A)相对设置的两个第三侧面(12)；
    所述第二弹性件(3)包括第一U形簧片(103)和第二U形簧片(104)，所述第一U形簧片(103)包括依次连接的第一段(1031)、第二段(1032)以及第三段(1033)，所述第二U形簧片(104)包括依次连接的第四段(1041)、第五段(1042)以及第六段 (1043)；
    未驱动时，所述第一段(1031)连接于其中一个所述第一侧面(101)，所述第二段(1032)与其中一个所述第二侧面(102)相对并间隔设置，所述第三段(1033)与另一个所述第一侧面(101)相对并间隔设置，且所述第三段(1033)远离所述第二段(1032)的端部连接于其中一个所述第三侧面(12)；
    所述第四段(1041)连接于另一个所述第一侧面(101)并与所述第三段(1033)相对并间隔设置，所述第五段(1042)与另一个所述第二侧面(102)相对并间隔设置，所述第六段(1043)与所述第一段(1031)相对并间隔设置，且所述第六段(1043)远离所述第五段(1042)的端部连接于另一个所述第三侧面(12)；
    所述驱动部(4)用于驱动所述第一移动层(5)沿所述第一方向(A)和/或沿所述第二方向(B)相对于所述固定层(1)往复移动，并用于驱动所述第二移动层(6)沿所述第一方向(A)和/或所述第二方向(B)相对于所述固定层(1)往复移动。
  6. 根据权利要求4或5所述的扩散片组件，其特征在于，其中一个所述第三侧面(12)上设置有第一卡接部(121)，另一个所述第三侧面(12)上设置有第二卡接部；
    所述第三段(1033)构造为第一L形结构，所述第一L形结构包括第一悬浮段(10331)和第一固定段(10332)，所述第一悬浮段(10331)与另一个所述第一侧面(101)沿所述第一方向(A)相对并间隔设置，且所述第一固定段(10332)上形成有与所述第一卡接部(121)卡接的第三卡接部(10330)。
  7. 根据权利要求4或5所述的扩散片组件，其特征在于，其中一个所述第三侧面(12)上设置有第一卡接部(121)，另一个所述第三侧面(12)上设置有第二卡接部；
    所述第六段(1043)构造为第二L形结构，所述第二L形结构包括第二悬浮段(10431)和第二固定段(10432)，所述第二悬浮段(10431)与所述第一段(1031)沿所述第一方向(A)相对并间隔设置，且所述第二固定段(10432)上形成有与所述第二卡接部卡接的第四卡接部(10430)。
  8. 根据权利要求4或5所述扩散片组件，其特征在于，所述驱动部(4)包括第一驱动单元和第二驱动单元，所述第一驱动单元用于驱动所述第一移动层(5)和所述第二移动层(6)沿所述第一方向(A)同步且反向地往复移动；所述第二驱动单元用于驱动 所述第一移动层(5)和所述第二移动层(6)沿所述第二方向(B)同步且反向地往复移动。
  9. 根据权利要求8所述扩散片组件，其特征在于，所述第一驱动单元包括第一驱动磁铁(411)、第一通电导体(412)以及第二通电导体(413)，所述第一驱动磁铁(411)设置于所述固定层(1)，所述第一通电导体(412)设置于所述第一移动层(5)并与所述第一驱动磁铁(411)相对设置，所述第二通电导体(413)设置于所述第二移动层(6)并与所述第一驱动磁铁(411)相对设置，所述第一通电导体(412)和所述第二通电导体(413)在所述第一驱动磁铁(411)产生的磁场内受到在所述第一方向(A)的力大小相等且方向相反。
  10. 根据权利要求8所述扩散片组件，其特征在于，所述第二驱动单元包括第二驱动磁铁(421)、第三通电导体(422)以及第四通电导体(423)，所述第二驱动磁铁(421)设置于所述固定层(1)所述第三通电导体(422)设置于所述第一移动层(5)并与所述第二驱动磁铁(421)相对设置，所述第四通电导体(423)设置于所述第二移动层(6)并与所述第二驱动磁铁(421)相对设置，所述第三通电导体(422)和所述第四通电导体(423)在所述第二驱动磁铁(421)产生的磁场内受到的在所述第二方向(B)的力大小相等且方向相反。
  11. 根据权利要求9所述扩散片组件，其特征在于，所述第二驱动单元包括第二驱动磁铁(421)、第三通电导体(422)以及第四通电导体(423)，所述第二驱动磁铁(421)设置于所述固定层(1)所述第三通电导体(422)设置于所述第一移动层(5)并与所述第二驱动磁铁(421)相对设置，所述第四通电导体(423)设置于所述第二移动层(6)并与所述第二驱动磁铁(421)相对设置，所述第三通电导体(422)和所述第四通电导体(423)在所述第二驱动磁铁(421)产生的磁场内受到的在所述第二方向(B)的力大小相等且方向相反；
    所述第一驱动磁铁(411)、所述第一通电导体(412)以及所述第二通电导体(413)均设置为两个，所述第二驱动磁铁(421)，所述第三通电导体(422)以及所述第四通电导体(423)均设置为两个；
    所述固定层(1)上形成有沿光束穿设方向贯通的两个第一安装槽和两个第二安装槽， 两个所述第一安装槽位于所述第一透光部(11)沿所述第一方向(A)的两侧以用于安装两个所述第一驱动磁铁(411)，两个所述第二安装槽位于所述第一透光部(11)沿所述第二方向(B)的两侧以用于安装两个所述第二驱动磁铁(421)；
    所述第一移动层(5)的第一内表面围绕所述第二透光部(51)并朝向远离所述固定层(1)的方向凹陷出第一环形凹槽(52)，两个所述第一通电导体(412)均连接于所述第一环形凹槽(52)内并位于所述第二透光部(51)沿所述第一方向(A)的两侧，两个所述第三通电导体(422)均连接于所述第一环形凹槽(52)内并位于所述第二透光部(51)沿所述第二方向(B)的两侧；
    所述第二移动层(6)的第二内侧面围绕所述第三透光部(61)并朝向远离所述固定层(1)的方向凹陷出第二环形凹槽(62)，两个所述第二通电导体(413)均连接于所述第二环形凹槽(62)内并位于所述第三透光部(61)沿所述第一方向(A)的两侧，两个所述第四通电导体(423)均连接于所述第二环形凹槽(62)内并位于所述第三透光部(61)沿所述第二方向(B)的两侧。
  12. 根据权利要求11所述扩散片组件，其特征在于，所述扩散片组件还包括第一环形柔性电路板(7)和第二环形柔性电路板(8)，所述第一环形柔性电路板(7)连接于所述第一环形凹槽(52)的内底壁，两个所述第一通电导体(412)和两个所述第三通电导体(422)连接于所述第一环形柔性电路板(7)；所述第二环形柔性电路板(8)连接于所述第二环形凹槽(62)的内底壁，两个所述第二通电导体(413)和两个所述第四通电导体(423)连接于所述第二环形柔性电路板(8)。
  13. 根据权利要求12所述扩散片组件，其特征在于，所述扩散片组件还包括控制器、第一检测元件(100)以及第二检测元件(200)，所述第一检测元件(100)用于检测所述第一移动层(5)的第一运动信息，所述第二检测元件(200)用于检测所述第二移动层(6)的第二运动信息，所述第一检测元件(100)、所述第二检测元件(200)、所述第一通电导体(412)、所述第二通电导体(413)、所述第三通电导体(422)以及所述第四通电导体(423)均与所述控制器电连接；
    所述控制器用于根据所述第一检测元件(100)检测的所述第一运动信息控制所述第一通电导体(412)和所述第三通电导体(422)工作，且用于根据所述第二检测元件(200) 检测的所述第二运动信息控制所述第二通电导体(413)和所述第四通电导体(423)工作。
  14. 根据权利要求9所述的扩散片组件，其特征在于，所述第一驱动磁铁(411)包括沿所述第一方向(A)依次布置的第一单体磁铁(4111)和第二单体磁铁(4113)，所述第一单体磁铁(4111)和所述第二单体磁铁(4113)的N极和S极均沿光束穿设方向布置，且所述第一单体磁铁(4111)和所述第二单体磁铁(4113)的磁极方向相反；
    所述第一通电导体(412)构造为第一通电线圈，所述第二通电导体(413)构造为第二通电线圈，所述第一通电线圈包括沿所述第二方向(B)延伸并沿所述第一方向(A)间隔设置且电流方向相反的两个第一直线段(4121)，所述第二通电线圈包括沿所述第一方向(A)延伸并沿所述第二方向(B)间隔设置且电流方向相反的两个第二直线段(4131)；两个所述第一直线段(4121)分别用于与所述第一单体磁铁(4111)和所述第二单体磁铁(4113)相对设置，两个所述第二直线段(4131)分别用于与所述第一单体磁铁(4111)和所述第二单体磁铁(4113)相对设置，且与所述第一单体磁铁(4111)相对的所述第一直线段(4121)和所述第二直线段(4131)的电流方向相反，与所述第二单体磁铁(4113)相对的所述第一直线段(4121)和所述第二直线段(4131)的电流方向相反。
  15. 根据权利要求10所述扩散片组件，其特征在于，所述第二驱动磁铁(421)包括沿所述第二方向(B)依次布置的第三单体磁铁(4211)和第四单体磁铁(4213)，所述第三单体磁铁(4211)和所述第四单体磁铁(4213)的N极和S极均沿光束穿设方向布置，且所述第三单体磁铁(4211)和所述第四单体磁铁(4213)的磁极方向相反；
    所述第三通电导体(422)构造为第三通电线圈，所述第四通电导体(423)构造为第四通电线圈，所述第三通电线圈包括沿所述第一方向(A)延伸并沿所述第二方向(B)间隔设置且电流方向相反的两个第三直线段(4221)，所述第四通电线圈包括沿所述第一方向(A)延伸并沿所述第二方向(B)间隔设置且电流方向相反的两个第四直线段(4231)，两个所述第三直线段(4221)分别用于与所述第三单体磁铁(4111)和所述第四单体磁铁(4113)相对设置，两个所述第四直线段(4231)分别用于与所述第三单体磁铁(4111)和所述第四单体磁铁(4113)相对设置，且与所述第三单体磁铁(4111)相对的所述第三直线段(4221)和所述第四直线段(4231)的电流方向相反，与所述第四单体磁铁(4113) 相对的所述第三直线段(4221)和所述第四直线段(4231)的电流方向相反。
  16. 根据权利要求14所述扩散片组件，其特征在于，所述第一驱动磁铁(411)还包括设置于所述第一单体磁铁(4111)和第二单体磁铁(4113)之间的第一中性层(4112)，且所述第一中性层(4112)配置为：在所述第一通电线圈和所述第二通电线圈相对于所述第一驱动磁铁(411)沿所述第一方向(A)同步且相离地运动的过程中，能够使得与第一单体磁铁(4111)相对的所述第一直线段(4121)和所述第二直线段(4131)不会与所述第二单体磁铁(4113)相对，并能够使得与所述第二单体磁铁(4113)相对的所述第一直线段(4121)和所述第二直线段(4131)不会与所述第一单体磁铁(4111)相对。
  17. 根据权利要求15所述扩散片组件，其特征在于，所述第二驱动磁铁(421)还包括设置于所述第三单体磁铁(4211)和第四单体磁铁(4213)之间的第二中性层(4212)，且所述第二中性层(4212)配置为：在所述第三通电线圈和所述第四通电线圈相对于所述第二驱动磁铁(421)沿所述第二方向(B)同步且相离地运动的过程中，能够使得与第三单体磁铁(4211)相对的所述第三直线段(4221)和所述第四直线段(4231)不会与所述第四单体磁铁(4113)相对，并能够使得与所述第四单体磁铁(4113)相对的所述第三直线段(4221)和所述第四直线段(4231)不会与所述第三单体磁铁(4211)相对。
  18. 根据权利要求2所述的扩散片组件，其特征在于，所述第一弹性件(2)和所述第二弹性件(3)构造为一体成型的弹性支撑件(23)，所述弹性支撑件(23)沿光束穿设方向将所述第一移动层(5)、所述固定层(1)以及所述第二移动层(6)相互连接。
  19. 根据权利要求18所述的扩散片组件，其特征在于，所述第一移动层(5)、所述固定层(1)以及所述第二移动层(6)均构造为方形板结构，每个所述方形板结构包括方形板本体(105)以及设置在方形板本体的四个拐角处的连接片(106)，且三个所述方形板结构沿光束穿设方向的投影重合；
    每个所述连接片(106)上均形成有U形开口(1061)，且沿光束穿设方向的投影重合的每三个所述连接片(106)上的三个所述U形开口(1061)沿光束穿设方向相对设置；
    所述弹性支撑件(23)包括四个钢丝弹簧，每个所述钢丝弹簧均沿光束穿设方向延伸并依次贯穿连接沿光束穿设方向相对设置的三个所述U形开口(1061)。
  20. 根据权利要求1所述的扩散片组件，其特征在于，所述扩散片组件还包括第三扩散片(30)，所述第三扩散片(30)连接于所述第一透光部(11)处，且所述第一扩散片(10)、所述第二扩散片(20)以及所述第三扩散片(30)两两相互平行。
  21. 一种光束消散斑装置，包括光束发射器(300)、缩束组件(400)、匀光组件(500)以及设置在所述缩束组件(400)和所述匀光组件(500)之间的散射件(600)，其特征在于，所述散射件(600)包括根据权利要求1-20中任意一项所述的扩散片组件。
  22. 一种投影仪，其特征在于，所述投影仪包括根据权利要求21所述的光束消散斑装置。
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CN113641062B (zh) * 2021-08-16 2023-03-14 深圳市火乐科技发展有限公司 扩散片组件、光束消散斑装置以及投影仪
WO2024078042A1 (zh) * 2022-10-12 2024-04-18 西安知微传感技术有限公司 一种面内二维平动光学致动器
CN115718399B (zh) * 2022-11-17 2023-11-07 东莞市维斗科技股份有限公司 一种新式振镜

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101738695A (zh) * 2008-11-12 2010-06-16 索尼株式会社 散射器驱动装置以及投射型影像显示设备
CN105573037A (zh) * 2015-12-31 2016-05-11 海信集团有限公司 一种激光光源及激光投影设备
US20160306183A1 (en) * 2013-12-10 2016-10-20 Optotune Ag Optical Device For Reducing Speckle Noise
CN207020408U (zh) * 2017-05-27 2018-02-16 西安利和智芯电子技术有限公司 一种激光显示系统中抑制激光散斑的装置
CN109669315A (zh) * 2019-02-25 2019-04-23 上海白泽网络科技有限公司 照明系统、投影光机系统及激光消散斑方法
CN112764297A (zh) * 2020-12-30 2021-05-07 深圳市火乐科技发展有限公司 动态扩散片组件及控制方法、激光消散斑装置、投影仪
CN113641062A (zh) * 2021-08-16 2021-11-12 深圳市火乐科技发展有限公司 扩散片组件、光束消散斑装置以及投影仪

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6898216B1 (en) * 1999-06-30 2005-05-24 Lambda Physik Ag Reduction of laser speckle in photolithography by controlled disruption of spatial coherence of laser beam
JP4219631B2 (ja) * 2002-07-19 2009-02-04 株式会社リコー 光走査装置および画像形成装置
JP4201022B2 (ja) * 2006-06-06 2008-12-24 セイコーエプソン株式会社 スクリーン、プロジェクタ及び画像表示装置
CN105807485A (zh) * 2014-12-30 2016-07-27 上海冠显光电科技有限公司 液晶显示模组、装置及控制方法
CN109061895A (zh) * 2016-09-06 2018-12-21 海信集团有限公司 一种消散斑部件、激光光源及激光投影设备
CN108398804B (zh) * 2018-03-28 2023-07-25 四川长虹电器股份有限公司 一种激光消散斑光路及激光投影光源系统
CN111381382B (zh) * 2018-12-28 2021-11-23 Tcl科技集团股份有限公司 一种激光匀光及消散斑装置
CN210954585U (zh) * 2019-12-23 2020-07-07 华录森宝电子科技有限公司 一种降低激光散斑的激光投影系统
CN113126310A (zh) * 2019-12-31 2021-07-16 深圳市Tcl高新技术开发有限公司 一种匀光装置和显示设备
CN212989699U (zh) * 2020-09-21 2021-04-16 江苏南锦电子材料有限公司 一种扩散片高透过率均光处理结构
CN112782913B (zh) * 2020-12-30 2022-04-22 深圳市火乐科技发展有限公司 动态扩散片组件及控制方法、激光消散斑装置、投影仪

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101738695A (zh) * 2008-11-12 2010-06-16 索尼株式会社 散射器驱动装置以及投射型影像显示设备
US20160306183A1 (en) * 2013-12-10 2016-10-20 Optotune Ag Optical Device For Reducing Speckle Noise
CN105573037A (zh) * 2015-12-31 2016-05-11 海信集团有限公司 一种激光光源及激光投影设备
CN207020408U (zh) * 2017-05-27 2018-02-16 西安利和智芯电子技术有限公司 一种激光显示系统中抑制激光散斑的装置
CN109669315A (zh) * 2019-02-25 2019-04-23 上海白泽网络科技有限公司 照明系统、投影光机系统及激光消散斑方法
CN112764297A (zh) * 2020-12-30 2021-05-07 深圳市火乐科技发展有限公司 动态扩散片组件及控制方法、激光消散斑装置、投影仪
CN113641062A (zh) * 2021-08-16 2021-11-12 深圳市火乐科技发展有限公司 扩散片组件、光束消散斑装置以及投影仪

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