WO2023020166A1 - 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
WO2023020166A1
WO2023020166A1 PCT/CN2022/105284 CN2022105284W WO2023020166A1 WO 2023020166 A1 WO2023020166 A1 WO 2023020166A1 CN 2022105284 W CN2022105284 W CN 2022105284W WO 2023020166 A1 WO2023020166 A1 WO 2023020166A1
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WIPO (PCT)
Prior art keywords
moving layer
base
along
magnet
frame
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PCT/CN2022/105284
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English (en)
French (fr)
Inventor
欧阳剑
徐旭升
陈仁喆
张聪
胡震宇
Original Assignee
深圳市火乐科技发展有限公司
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Application filed by 深圳市火乐科技发展有限公司 filed Critical 深圳市火乐科技发展有限公司
Publication of WO2023020166A1 publication Critical patent/WO2023020166A1/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 are provided.
  • the embodiment of the first aspect of the present disclosure proposes a diffuser assembly, which includes a first moving layer, a base, a first elastic member, a second elastic member, and a diffuser through which light beams pass.
  • the part includes a first driving part and a second driving part;
  • the first elastic member connects the diffusion sheet and the first moving layer, and the first elastic member is configured to be deformable along a first direction parallel to the diffusion sheet, so that the diffusion sheet movable in the first direction relative to the first moving layer;
  • the second elastic member connects the first moving layer and the base, and the second elastic member is configured to be deformable along a second direction parallel to the diffusion sheet, so that the first a moving layer and the diffusion sheet are movable in the second direction relative to the base;
  • the first driving part is used to drive the diffusion sheet to move relative to the first moving layer along the first direction
  • the second driving part is used to drive the first moving layer to move relative to the diffusion sheet.
  • the diffusion sheet assembly further includes a second moving layer, the first moving layer is configured as a frame structure, the diffusion sheet is arranged on the second moving layer, and the first elastic member connecting the frame structure and the second moving layer and supporting the second moving layer in the light beam penetration direction, and the second moving layer and the frame structure are spaced apart in the first direction, so The second elastic member is used to support the first moving layer in the beam passing direction and is connected to the base, so that the first moving layer and the base are spaced apart in the beam passing direction;
  • the first driving part is used to drive the second moving layer to reciprocate in the frame structure and relative to the frame structure in the first direction
  • the second driving part is used to drive the first moving layer The layer and the second moving layer reciprocate relative to the base in the second direction.
  • the frame structure includes a first frame plate, a second frame plate, a third frame plate and a fourth frame plate connected in sequence and end to end, the first frame plate and the third frame
  • the plates are arranged oppositely along the first direction
  • the second frame plate and the fourth frame plate are oppositely arranged along the second direction
  • the second moving layer includes two oppositely arranged along the first direction a first outer surface, two of the first outer surfaces are respectively spaced apart from the first frame plate and the third frame plate along the first direction;
  • the first elastic member includes two first reeds disposed opposite to each other along the first direction and extending along the second direction, one of the first reeds is connected to one of the first outer surfaces and The second frame plate, the other first reed connects the other first outer surface and the fourth frame plate;
  • the second elastic member includes two oppositely arranged along the second direction Second reeds, one of the second reeds is connected to the outer side of the second frame plate and the base, and the other second reed is connected to the outer side of the fourth frame plate and the base.
  • the first reed includes a first reed body and a first support piece both extending along the second direction, and the first reed body is formed with a A first elongated opening extending in the same direction and closed at both ends, the first elongated opening includes two first inner edges oppositely arranged along the second direction, and two second second inner edges oppositely arranged along the beam passing direction
  • the inner edge, the first supporting piece is arranged in the first elongated opening and one end of the first supporting piece is connected to one of the first inner edges, the other end of the first supporting piece is connected to the other
  • the first inner edge is arranged at intervals along the second direction, and the first supporting piece and the two second inner edges are both arranged at intervals along the light beam passing direction, and the first reed body is used to communicate with The second frame board or the fourth frame board is connected, and the first supporting sheet is used for connecting with the first outer surface.
  • the second reed includes a second reed body extending along the first direction and a second supporting piece, and the second reed body is formed with a A second elongated opening that is extended and closed at both ends, the second elongated opening includes two third inner edges that are oppositely arranged along the first direction, and two fourth inner edges that are oppositely arranged along the beam passing direction edge, the second supporting piece is arranged in the second strip opening and one end of the second supporting piece is connected to one of the third inner edges, the other end of the second supporting piece is connected to the other The third inner edge is arranged at intervals along the first direction, and the second support piece and the two fourth inner edges are both arranged at intervals along the light beam passing direction, and the second reed body is used to communicate with the The base is connected, and the second supporting piece is used for connecting with the outer surface or the outer surface.
  • two first slots are respectively formed at both ends of the first reed body, the first outer surface includes a first part and a second part, and the first part and the first part are connected to each other.
  • a support piece is relatively attached and connected, the second part is provided with a first block, the inner side of the second frame plate or the inner side of the fourth frame plate is provided with a second block, and the two first A locking slot is engaged with the first locking block and the second locking block respectively.
  • two second slots are respectively formed at both ends of the second reed body, and the outer surface of the second frame plate or the outer surface connection of the fourth frame plate include a third part and a fourth part, the third part is connected to the second supporting piece in relative fit, the fourth part is provided with a third block, and the base is provided with a fourth block, The two second locking slots are engaged with the third locking block and the fourth locking block respectively.
  • the base includes a base frame and a base bottom plate, and the base bottom plate is sealed and arranged in the base frame; a first opening is formed on the second moving layer, The diffusion sheet is arranged to block the first opening, a second opening is formed on the bottom plate of the base, and the second opening is arranged opposite to the first opening along the light beam passing direction.
  • the base frame includes a base frame body and a base frame side plate that are connected to each other, the first moving layer and the base frame body are spaced apart in the light beam penetration direction, so
  • the base bottom plate is sealed and arranged in the base frame body, the base frame side plate extends along the second direction and protrudes from the base frame body in the light beam passing direction, the base frame
  • the end of the side plate of the seat frame along the second direction is provided with the fourth clamping block to engage with the corresponding second clamping slot on the corresponding second reed body.
  • the first drive part includes a first drive magnet and a first current conductor disposed opposite to each other, and one of the first drive magnet and the first current conductor is disposed on the first drive magnet. Two mobile floors, the other one is set on the base.
  • the second drive part includes a second drive magnet and a second current conductor disposed opposite to each other, and one of the second drive magnet and the second current conductor is disposed on the first drive magnet.
  • One is a mobile layer, and the other is set on the base.
  • the base includes a base frame and a base bottom plate, and the base bottom plate is sealed and arranged in the base frame; a first opening is formed on the second moving layer, The diffusion sheet is sealed and arranged on the first opening, a second opening is formed on the bottom plate of the base, and the second opening is arranged opposite to the first opening along the light beam passing direction;
  • Both the first electric conductor and the second electric conductor are arranged on the inner surface of the bottom plate of the base, and a first installation groove for the first driving magnet is formed on the second moving layer, and the A second mounting slot for mounting the second driving magnet is formed on the first moving layer.
  • the diffuser assembly further includes a flexible circuit board laid on the inner surface of the base bottom plate, the first electric conductor and the second electric conductor are both connected to the flexible circuit plate;
  • 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 second moving layer, so The second detection element is used to detect the second motion information of the first moving layer, and the first detection element, the second detection element, the first current conductor and the second current conductor are all connected to the The controller is electrically connected;
  • the controller is used for controlling the operation of the first energized conductor according to the first motion information detected by the first detection element, and for controlling the operation of the first conductor according to the second motion information detected by the second detection element.
  • the second energized conductor works.
  • 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, and the first energization coil includes two first straight line segments extending along the second direction and arranged at intervals along the first direction and having opposite current directions, The two first straight line segments are respectively used to be arranged opposite to the first single magnet and the second single magnet.
  • 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 second energization conductor is configured as a second energization coil, and the second energization coil includes two second straight line segments extending along the first direction and arranged at intervals along the second direction with opposite current directions, The two second straight line segments are respectively used to be arranged opposite to the third single magnet and the fourth single magnet.
  • 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 is: during the reciprocating movement of the first drive magnet relative to the first energized coil along the first direction, the first neutral layer can make the The first straight line segment will not be opposite to the second single body magnet, and the first straight line segment opposite to the second single body magnet will not be opposite to the first single body magnet.
  • 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 is: during the reciprocating movement of the second driving magnet relative to the second energized coil along the second direction, the second neutral layer can make the The second straight line segment will not be opposite to the fourth single magnet, and the second straight line segment opposite to the fourth single magnet will not be opposite to the third single magnet.
  • the diffusion sheet assembly further includes a second moving layer, a first guide support and a second guide support, the first moving layer is configured as a frame structure, and the diffusion sheet is arranged on the The second moving layer, the first guide support member is arranged on the frame structure and supports the second moving layer in the frame structure along the light beam passing direction, the first elastic member connects the a second mobile floor and the first mobile floor, and the second mobile floor and the frame structure are spaced apart in the first direction;
  • the second guide support member is arranged on the base and supports the first moving layer on the base along the light beam passing direction, and the second elastic member connects the base and the first A mobile layer.
  • the first guide support member includes two first guide support columns arranged at intervals along the light beam passing direction on the first moving layer, and the second moving layer is arranged along the first moving layer.
  • One direction is movably arranged between the two first guiding and supporting columns.
  • the second guide support member includes two second guide support columns arranged at intervals on the base along the light beam passing direction, and the first moving layer is arranged along the second direction It is movably arranged between the two second guide support columns.
  • the embodiment of the first aspect of the present disclosure proposes a diffuser assembly.
  • the first elastic member can deform along a first direction parallel to the diffuser, and the second elastic member can deform along a second direction parallel to the diffuser.
  • the first elastic member and the second elastic member can play the role of reset, and on the other hand, can improve the stability of the movement of the diffuser. 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 is better than the traditional one.
  • 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.
  • the number of random phases will also increase, which improves the area utilization of the diffusion sheet and better reduces the coherence of the beam , to improve the speckle dissipation effect.
  • 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 provides a top view of a diffuser assembly according to an embodiment of the present disclosure
  • FIG. 4 provides a side view of a diffuser assembly according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a diffuser assembly along a second direction provided by an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of an exploded structure of another diffuser assembly provided by an embodiment of the present disclosure, wherein the figure also shows a first guide support column and a second guide support column;
  • Fig. 7 is a schematic diagram of a light beam speckle elimination device provided by an embodiment of the present disclosure.
  • orientation words used such as “first direction” and “second direction” can be shown in Figure 1; the direction of beam passing can also be shown in Figure 1; use
  • orientation words such as “inside and outside” refer to the inside and outside of the specific structural outline, and the terms used such as “first, second, third and fourth” are only used to distinguish one element from another element and do not sequence and importance.
  • the present disclosure provides a diffuser assembly, which includes a first moving layer 103, a base 104, a first elastic member 105, a second elastic member 106, and a light beam passing through The diffusion sheet 101, the driving part includes a first driving part 107 and a second driving part 108; the first elastic member 105 connects the diffusion sheet 101 and the first moving layer 103, and the first elastic member 105 is configured to: The first direction A of 101 is deformed so that the diffusion sheet 101 can move along the first direction A relative to the first moving layer 103; the second elastic member 106 connects the first moving layer 103 and the base 104, and the second elastic member 106 is configured to be deformable along a second direction B parallel to the diffusion sheet 101, so that the first moving layer 103 and the diffusion sheet 101 can move along the second direction B relative to the base 104; the first driving part 107 is used to The diffusion sheet 101 is driven to move along the first direction A relative to the first moving layer 103, the second driving part 108 is used to drive the
  • the first elastic member 105 can be deformed along a first direction A parallel to the diffusion sheet 10
  • the second elastic member 106 can be deformed along a second direction B parallel to the diffusion sheet 101.
  • the elastic member 105 and the second elastic member 106 can play the role of reset on the one hand, and on the other hand can improve the stability of the movement of the diffusion sheet 101 .
  • the number of random phases will also increase, which improves the area utilization rate of the diffusion sheet 101, and is better
  • the coherence of the light beam can be greatly weakened, and the speckle dissipation effect can be improved.
  • the diffuser assembly also includes a second moving layer 109
  • the first moving layer 103 is structured as a frame structure
  • the diffusing sheet 101 is arranged on the second moving layer 109 for light beams to pass through
  • the member 105 connects the frame structure and the second moving layer 109 and supports the second moving layer 109 in the light beam passing direction
  • the second moving layer 109 and the frame structure are arranged at intervals in the first direction A
  • the second elastic member 106 is used
  • the first moving layer 103 is supported in the light beam passing direction and connected to the base 104, so that the first moving layer 103 and the base 104 are spaced apart in the light beam passing direction;
  • the first driving part 107 is used to drive the second
  • the moving layer 109 moves back and forth in the first direction A relative to the frame structure within the frame structure
  • the second driving part 108 is used to drive the first moving layer 103 and the second moving layer 109 along the second direction B relative to the base 104 reciprocating movement.
  • the first moving layer 103 is set as a frame structure, and the second moving layer 109 for setting the diffuser 101 is reciprocally arranged in the frame structure along the first direction A.
  • the first elastic member 105 and the second elastic member 106 can not only perform the above-mentioned reset and improve the movement
  • the first elastic member 105 can also support and connect the second moving layer 109 in the frame structure
  • the second elastic member 106 can also support and connect the first moving layer 103 to the base 104, That is to say, the first elastic member 105 and the second elastic member 106 can support the second moving layer 109 and the first moving layer 103 respectively, so as to prevent the second moving layer 109 from moving relative to the first moving layer along the first direction A.
  • the frame structure of the diffuser assembly includes a first frame plate 1031 , a second frame plate 1032 , a third frame plate 1033 and a fourth frame plate connected in sequence and end to end. 1034, the first frame plate 1031 and the third frame plate 1033 are arranged oppositely along the first direction A, the second frame plate 1032 and the fourth frame plate 1034 are arranged oppositely along the second direction B; the second moving layer 109 includes A two first outer surfaces 1091 opposite to each other, the two first outer surfaces 1091 are spaced apart from the first frame plate 1031 and the third frame plate 1033 along the first direction A respectively.
  • the first elastic member 105 includes two first reeds 1051 oppositely arranged along the first direction A and extending along the second direction B, one of the first reeds 1051 is connected to one of the first outer surfaces 1091 and the second frame plate 1032, the other first reed 1051 connects the other first outer surface 1091 and the fourth frame plate 1034;
  • the second elastic member 106 includes two second reeds 1061 oppositely arranged along the second direction B, one of which is second The reed 1061 connects the outer surface of the second frame plate 1032 and the base 104 , and another second reed 1061 connects the outer surface of the fourth frame plate 1034 and the base 104 .
  • the first moving layer 103 is set as a square frame structure, which effectively improves the stability of the structure of the first moving layer 103;
  • the first elastic member 105 is set as two first reeds 1051, and each first reed 1051 is connected to the corresponding first outer surface 1091 and one of the second frame plate 1032 and the fourth frame plate 1034, in the second moving layer 109 along the first direction A in a square
  • the two first reeds 1051 can play a good reset role, reducing the load on the first driving part 107, and the two first reeds 1051 can improve the movement of the second moving layer 109 along the first direction.
  • the two first reeds 1051 are respectively used to be arranged opposite to the first outer surface 1091 of the second moving layer 109, in addition to reducing the size of the diffuser assembly in the first direction A. It can also reduce the arrangement of dimensions in the thickness direction of the diffusion sheet assembly, which is beneficial to the light and thin design of the diffusion sheet assembly.
  • the second elastic member 106 is set as two second reeds 1061, one of the second reeds 1061 connects the outer side of the second frame plate 1032 and the base 104, and the other second reed 1061 connects The outer side of the fourth frame 1034 and the base 104 .
  • the two second reeds 1061 can play a good reset role, reducing the load on the second driving part 108, and the two second reeds 1061 can improve the stability of the reciprocating movement of the first moving layer 103 along the second direction B; in addition, the two second reeds 1061 are respectively used for the outer side of the second frame plate 1032 and the outer side of the fourth frame 1034 to be arranged oppositely, In addition to reducing the arrangement of dimensions in the second direction B of the diffusion sheet assembly, the arrangement of dimensions in the thickness direction of the diffusion sheet assembly can also be reduced, which is beneficial to the light and thin design of the diffusion sheet assembly.
  • the first reed 1051 includes a first reed body 10511 and a first supporting piece 10512 both extending along the second direction B, and the first reed body 10511 is formed with a
  • the first long sliver opening is extended and closed at both ends, the first long sliver opening includes two first inner edges 10501 oppositely arranged along the second direction B, and two second inner edges 10502 oppositely arranged along the beam passing direction
  • the first supporting piece 10512 is arranged in the first elongated opening and one end of the first supporting piece 10512 is connected to one of the first inner edges 10501, and the other end of the first supporting piece 10512 is connected to the other first inner edge 10501 along the second
  • the direction B is arranged at intervals, and the first support piece 10512 and the two second inner edges 10502 are arranged at intervals along the light beam passing direction, and the first reed body 10511 is used to connect with the second frame plate 1032 or the fourth frame plate 1034,
  • the second reed 1061 includes a second reed body 10611 and a second supporting piece 10612 extending along the first direction A, and the second reed body 10611 A second elongated opening extending along the first direction A and closed at both ends is formed.
  • the second elongated opening includes two third inner edges 10601 oppositely arranged along the first direction A, and two third inner edges 10601 arranged oppositely along the beam penetration direction.
  • the second support piece 10612 is arranged in the second elongated mouth and one end of the second support piece 10612 is connected to one of the third inner edges 10601, the other end of the second support piece 10612 is connected to the other first
  • the three inner edges 10601 are arranged at intervals along the first direction A, and the second supporting piece 10612 and the two fourth inner edges 10602 are arranged at intervals along the beam penetration direction.
  • the second reed body 10611 is used to connect with the base 104, and the second The two supporting pieces 10612 are used to connect with the outer surface of the second frame plate 1032 or the outer surface of the fourth frame plate 1034 .
  • the first reed 1051 includes two parts, one part is the first reed body 10511 , and the other part is the first supporting piece 10512 .
  • the first supporting piece 10512 extends along the second direction B and is elongated, so it has good rigidity in the direction in which the light beam penetrates.
  • the first supporting piece 10512 Relatively close connection with the first outer surface 1091 can play a good supporting role for the second moving layer 109 in the beam passing direction, and avoid shaking of the second moving layer 109 in the beam passing direction; secondly, for the For the first reed body 10511, in addition to the role of connecting the first moving layer 103, it also has an important role to be able to elastically deform along the first direction A, specifically, in the second moving layer 109 During the reciprocating movement along the first direction A, the two first deformation arms 10514 of the first reed body 10511 adjacent to the first supporting piece 10512 can be deformed along the first direction A, thereby restoring and improving the second The moving layer 109 plays a role in reciprocating movement stability.
  • the second reed 1061 also includes two parts, one part is the second reed body 10611 , and the other part is the second supporting piece 10612 .
  • the second supporting piece 10612 extends along the first direction A and has a long strip shape, so it has good rigidity in the direction in which the light beam penetrates.
  • the second supporting piece 10612 By using the second supporting piece 10612 If it is connected to the outer side of the second frame plate 1032 or the outer side of the fourth frame plate 1034 in a relatively close fit, it can play a good supporting role for the first moving layer 103 in the light beam penetration direction, and the first moving layer 103 It is stably supported on the base 104 to prevent the first moving layer 103 from shaking in the direction of light beam penetration; secondly, for the second reed body 10611, in addition to connecting the first moving layer 103 and the base 104 In addition to the function, another important function is to be able to elastically deform along the second direction B, specifically, during the reciprocating movement of the first moving layer 103 along the first direction B, it is adjacent to the second supporting piece 10612 The two second deformation arms 10613 of the second reed body 10611 can be deformed along the second direction B to restore and improve the stability of the reciprocating movement of the first moving layer 103 .
  • first supporting piece 10512 and the two second inner edges 10502 are arranged at intervals along the light beam passing direction, then during the reciprocating movement of the second moving layer 109 along the first direction A, the second moving layer 109 A support piece 10512 will not interfere with the structure of the two first deformable arms 10514, ensuring that the first deformable arm 10514 can undergo normal deformation; similarly, the second support piece 10612 and the two fourth inner edges 10602 are all along the light beam If the penetrating direction is arranged at intervals, when the first moving layer 103 reciprocates along the second direction B, the second supporting piece 10612 will not interfere with the structure of the two second deforming arms 10613, ensuring that the second deforming arms 10613 Normal deformation can occur.
  • the two ends of the first reed body 10511 are respectively formed with two first slots 10510
  • the first outer surface 1091 includes a first part and a second part, the first part and the first
  • the support piece 10512 is relatively attached and connected
  • the second part is provided with a first clamping block 10513
  • the inner side of the second frame plate 1032 or the inner side of the fourth frame plate 1034 is provided with a second clamping block 1030
  • two first clamping slots 10510 Respectively engage with the first clamping block 10513 and the second clamping block 1030
  • the two ends of the second reed body 10611 are respectively formed with two second clamping slots 10610, the outer surface of the second frame plate 1032 or the fourth frame plate 1034
  • the outer side connection of each includes a third part and a fourth part, the third part is connected to the second supporting piece 10612, the third block 1035 is provided on the fourth part, and the fourth block is provided on the base 104 1040, the two second locking
  • the base 104 includes a base frame 1041 and a base bottom plate 1042, and the base bottom plate 1042 is sealed and arranged in the base frame 1041; a first opening 1092 is formed on the second moving layer 109, The diffuser 101 is arranged to block the first opening 1092 , and the second opening 10420 is formed on the bottom plate of the base 1042 , and the second opening 10420 is arranged opposite to the first opening 1092 along the beam passing direction.
  • the base 104 is set as two parts, the base frame 1041 and the base bottom plate 1042, and the base bottom plate 1042 is sealed and arranged in the base frame 1041; then the structure of the base 104 can be effectively improved.
  • Stability plays a good role in supporting the diffusion sheet assembly as a whole; secondly, the second moving layer 109 is formed with a first opening 1092 for the installation of the diffusion sheet 101, which reduces the weight of the second moving layer 109 and is also beneficial to the diffusion sheet assembly.
  • Light and thin design in addition, a second opening 10420 opposite to the first opening 1092 is provided on the base bottom plate 1042 to facilitate the light beam to pass through the diffuser assembly and avoid blocking the light beam.
  • the base frame 1041 includes a base frame body 10411 and a base frame side plate 10412 that are connected to each other.
  • the base plate 1042 is sealed and arranged in the base frame body 10411, the base frame side plate 10412 extends along the second direction B and protrudes from the base frame body 10411 in the beam passing direction, and the base frame side plate 10412 extends along the second direction B.
  • the end of the two directions B is provided with a fourth locking block 1040 to engage with the corresponding second locking slot 10610 on the corresponding second reed body 10611 .
  • the roughly flat design of 10412 can also take advantage of the light and thin design of the diffuser assembly.
  • the first driving part 107 comprises the first driving magnet 1071 and the first electric conductor 1072 that are arranged oppositely, one of the first driving magnet 1071 and the first electric conductor 1072 is arranged on the second moving layer 109 , and the other is disposed on the base 104 .
  • the second driving part 108 includes a second driving magnet 1081 and a second conducting conductor 1082 oppositely arranged, and the second driving magnet 1081 and the second conducting conductor One of 1082 is disposed on the first moving layer 103 , and the other is disposed on the base 104 .
  • the first driving magnet 1071 is arranged on the second moving layer 109 and the N pole and the S pole of the first driving magnet 1071 are arranged along the beam passing direction, and the first electric conductor 1072 is arranged on the base 104 and connected with the first driving magnet 1071.
  • the magnets 1071 are arranged oppositely, and the first straight line segment 10720 of the first electric conductor 1072 extends along the second direction B;
  • the second driving part 108 includes a second driving magnet 1081 and a second electric conductor 1082, and the second driving magnet 1081 is arranged on the second A moving layer 103 and the N pole and the S pole of the second drive magnet 1081 are arranged along the beam passing direction, the second conduction conductor 1082 is arranged on the base 104 and is arranged opposite to the second drive magnet 1081, and the second conduction conductor
  • the second straight segment 10820 of 1082 extends along the first direction A.
  • the first straight line segment 10720 of the first energized conductor 1072 extending along the second direction B is located in the magnetic field generated by the first drive magnet 1071 where the N pole and S pole are arranged along the beam passing direction.
  • the first straight line segment 10720 is subjected to an Ampere force along the first direction A
  • the first driving magnet 1071 is subjected to a reaction force opposite to the direction of the first straight line segment 10720, and because the first driving magnet 1071 is arranged on the second moving layer 109, Then the second moving layer 109 can move back and forth along the first direction A.
  • the second driving part 108 configured as the second driving magnet 1081 and the second conducting conductor 1082 can drive the first moving layer 103 to reciprocate along the second direction B.
  • the decibel of noise can also be reduced as much as possible, and the performance of the diffuser assembly in specific product applications can be improved. user experience.
  • the base 104 includes a base frame 1041 and a base bottom plate 1042, and the base bottom plate 1042 is sealed and arranged in the base frame 1041;
  • An opening 1092, the diffuser 101 is blocked and arranged in the first opening 1092, the second opening 10420 is formed on the bottom plate of the base 1042, and the second opening 10420 is arranged opposite to the first opening 1092 along the beam passing direction;
  • the first electric conductor 1072 and the second electric conductor 1082 are both arranged on the inner surface of the base bottom plate 1042, the second moving layer 109 is formed with a first installation slot 1070 for the first drive magnet 1071 to be installed, and the first moving layer 103 is formed with a first installation slot 1070 for the first driving magnet 1071
  • Two drive magnets 1081 are installed in the second installation groove 1080 .
  • the arrangement of reduced size in the direction of light beam penetration is convenient for the design of light and thin diffuser components; and the second moving layer 109 and the first moving layer 103 are respectively formed with the first driving magnet 1071 and the second driving magnet 1081.
  • the first installation groove 1070 and the second installation groove 1080 improve the installation convenience of the first driving magnet 1071 and the second driving magnet 1081 while taking advantage of the lightweight design of the diffuser assembly.
  • the diffuser assembly further includes a flexible circuit board 1043 laid on the inner surface of the base bottom plate 1042 , and the first electrical conductor 1072 and the second electrical conductor 1082 are both connected to the flexible circuit board 1043 .
  • the current-carrying conductors can be formed by winding the existing electrical connection wires on the flexible circuit board 1043, without occupying the height of the diffuser assembly in the thickness direction, and the current-carrying conductors are directly arranged on the flexible circuit board 1043, forming a flexible circuit board 1043.
  • a part of the circuit board 1043 can also save the traditional coil assembly processes such as winding, welding, and glue dispensing, and improve the convenience of operation.
  • the diffuser assembly further includes a controller, a first detection element 110 and a first detection element.
  • the first detection element 110 is used to detect the second moving layer 109 of the first motion information
  • the first detection element is used to detect the second motion information of the first moving layer 103
  • the first detection element 110, the first detection element, the first energization conductor 1072 and the second energization conductor 1082 are all connected with the control
  • the controller is used to control the operation of the first energized conductor 1072 according to the first motion information detected by the first detection element 110, and is used to control the operation of the second energized conductor 1082 according to the second motion information detected by the first detection element.
  • the controller adjusts the magnitude and direction of the current of the second energized conductor 1082 corresponding to the first moving layer 103, and/or, the first conductor corresponding to the second moving layer 6
  • the magnitude and direction of the electric current of the energized conductor 1072 are adjusted, thereby adjusting the magnitude and
  • both the above-mentioned first detection element 110 and the first detection element 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 strength of the magnetic field is detected internally and fed back to the controller.
  • the controller can judge and control the movement conditions of the first moving layer 103 and the second moving layer 109 according to the change of the strength of the magnetic field.
  • the present disclosure does not limit the first detection element 110 and specific types of the first detection element.
  • the first driving magnet 1071 includes a first single magnet 10711 and a second single magnet 10712 sequentially arranged along the first direction A, and the first single magnet 10711 and the second The N poles and S poles of the single magnet 10712 are arranged along the beam penetration direction, and the magnetic pole directions of the first single magnet 10711 and the second single magnet 10712 are opposite;
  • the first energized conductor 1072 is configured as a first energized coil
  • the second An energized coil includes two first straight line segments 10720 extending along the second direction B and spaced apart along the first direction A with opposite current directions.
  • the two single-body magnets 10712 are arranged oppositely;
  • the second driving magnet 1081 includes a third single-piece magnet 10811 and a fourth single-piece magnet 10812 arranged in sequence along the second direction B, and the third single-piece magnet 10811 and the fourth single-piece magnet 10812 Both the N pole and the S pole are arranged along the beam passing direction, and the magnetic pole directions of the third single magnet 10811 and the fourth single magnet 10812 are opposite;
  • the second current conductor 1082 is configured as a second current coil, and the second current coil includes Two second straight line segments 10820 extending in the first direction A and arranged at intervals along the second direction B with opposite current directions, the two second straight line segments 10820 are respectively used for connecting with the third single magnet 10811 and the fourth single magnet 10812 relative settings.
  • the two first straight sections 10720 of the first energized coil are both subjected to the Ampere force, and the two first straight sections 10820 are subjected to The direction of the Ampere's force extends along the first direction A and is in the same direction.
  • the first single magnet 10711 and the second single magnet 10712 are both subjected to the Ampere's force extending along the first direction A and in the same direction.
  • a driving magnet 107 is arranged on the second moving layer 109, then the second moving layer 109 is subjected to an Ampere force extending along the first direction A, and the second moving layer 109 drives the diffuser 101 on it to reciprocate along the first direction A .
  • the two second straight line segments 10820 of the second energized coil are subjected to the Ampere force, and the two second straight line segments 10820 are subjected to the Ampere force
  • the directions of both extend along the second direction B and are in the same direction.
  • both the third single magnet 10811 and the fourth single magnet 10812 are subjected to an Ampere force extending along the second direction B and in the same direction, and because the second driving magnet 108 is arranged on the first moving layer 103, then the first moving layer 103 receives the Ampere force extending along the first direction B, and the first moving layer 103 drives the second moving layer 109 and the diffusion sheet 101 to reciprocate along the second direction A .
  • the first energized coil can make full use of the magnetic fields generated by the first single magnet 10711 and the second single magnet 10712 on both sides in the thickness direction, and the design of the first driving magnet 1071 adopts two single magnets with opposite polarities to obtain High magnetic field utilization rate, the first energized coil can be designed in a racetrack shape, the dimensions of the first single magnet 10711 and the second single magnet 10712 in the second direction B can be equal to the length of the first straight line segment 10720 mentioned above, In order to compress the invalid arc section of the first energized coil to the shortest, improve the utilization rate of the first energized coil, and the design of the first driving magnet 1071 and the first energized coil can also compress the thickness of the diffuser sheet assembly as much as possible. Designed to facilitate the thinner and lighter design of the diffuser assembly.
  • the second energized coil can make full use of the magnetic field generated by the third single magnet 10811 and the fourth single magnet 10812 on both sides in the thickness direction, and the design of the second driving magnet 1081 adopts two single poles with opposite polarities
  • the magnet can obtain a very high magnetic field utilization rate
  • the second energized coil can adopt a racetrack-shaped design
  • the dimensions of the third single magnet 10811 and the fourth single magnet 10812 in the first direction A can be compared with the above-mentioned second straight line segment 10820
  • the lengths are equal, so as to compress the ineffective arc section of the second energized coil to the shortest and improve the utilization rate of the second energized coil
  • the design of the first drive magnet 1081 and the second energized coil can also be compressed as much as possible in the thickness of the diffusion sheet assembly
  • the design in the direction facilitates the thinner and lighter design of the diffuser assembly.
  • the first driving magnet 1071 also includes a first neutral layer 10713 arranged between the first single magnet 10711 and the second single magnet 10712
  • the second driving magnet 1081 also includes a the second neutral layer 10813 between the third single magnet 10811 and the fourth single magnet 10812;
  • the first neutral layer 10713 is configured such that when the first driving magnet 1071 reciprocates along the first direction A relative to the first energized coil, the first neutral layer 10713 can make the first driving magnet 10713 opposite to the first single magnet 10711
  • the straight line segment 10720 will not be opposite to the second single magnet 10712, and the first straight line segment 10720 opposite to the second single magnet 10712 will not be opposite to the first single magnet 10711; the second neutral layer 10813 configuration
  • the second neutral layer 10813 can prevent the second straight line segment 10820 opposite to the third single magnet 10811 from colliding with
  • the fourth single magnet 10812 is opposite to each other, so that the second straight line segment 10820 opposite to the fourth single magnet 10812 will not be opposite to the third single magnet 10811 .
  • the first neutral layer 10713 By disposing the first neutral layer 10713 between the first single magnet 10711 and the second single magnet 10712, during the reciprocating movement of the first drive magnet 1071 relative to the first energized coil along the first direction A, the first The neutral layer 10713 can make the first straight section 10720 opposite to the first single magnet 10711 not face the second single magnet 10712, and can make the first straight section 10720 opposite to the second single magnet 10712 not Opposite to the first single magnet 10711 , it avoids the resistance opposite to the moving direction of the second moving layer 109 and improves the fluency of the second moving layer 109 reciprocating in the first direction A.
  • the second neutral layer 10813 can make the second straight line segment 10820 opposite to the third single body magnet 10811 not face the fourth single body magnet 10812, and can make the second straight line segment opposite to the fourth single body magnet 10812 10820 will not be opposed to the third single magnet 10811, avoiding resistance against the moving direction of the first moving layer 103, and improving the smoothness of the reciprocating movement of the first moving layer 103 in the second direction B.
  • the diffuser assembly also includes a second moving layer 109, a first guide support 111 and a second guide support 112, the first moving layer 103 is constructed as a frame structure, and the diffuser 101 is arranged on the second moving layer 109, the first guide support member 111 is arranged on the frame structure and supports the second moving layer 109 in the frame structure along the light beam penetration direction, the first elastic member 105 connects the second moving layer 109 and the first moving layer 103, and The second moving layer 109 is spaced apart from the frame structure in the first direction A; the second guiding support 112 is arranged on the base 104 and supports the first moving layer 103 on the base 104 along the light beam passing direction, and the second elastic The member 106 connects the base 104 and the first mobile layer 103 .
  • the first guide support 111 can effectively support the second moving layer 109 in the frame structure, and can ensure that the second moving layer 109 can move back and forth along the first direction A; the second guide support 112
  • the first moving layer 103 can be effectively supported on the base 104 , and it can ensure that the first moving layer 103 can move back and forth along the second direction B relative to the base 104 .
  • the first guide support member 111 includes two first guide support columns 1110 arranged at intervals on the first moving layer 103 along the light beam passing direction, and the two first guide support columns 1110 can be arranged along the second direction. B extends, and the second moving layer 109 is movably disposed along the first direction A between the two first guiding and supporting columns 1110 .
  • the second guide support member 112 includes two second guide support columns 1120 arranged at intervals on the base 104 along the light beam passing direction, and the two second guide support columns 1120 It can extend along the first direction A, and the first moving layer 103 is movably disposed along the second direction B between the two second guide support columns 1120 .
  • the first guide support column 1110 and the second guide support column 1120 are simple in structure, can play a good guiding and supporting role, and facilitate the lightweight design of the diffuser assembly.
  • the present disclosure does not limit the specific structural forms of the first guide support 111 and the second guide support 112 .
  • the structure of the first reed 1051 and the second reed 1061 will also change accordingly, that is, the first guide support 111
  • the second guide support piece 112 replaces the second support piece 10612
  • the structure of other parts is similar to the above-mentioned first reed 1051 and second reed 1061, which can be referred to as shown in 6 for details.
  • the present disclosure also provides a beam dispersing device, as shown in FIG.
  • the diffuser 600 in between, the diffuser 600 includes the above-mentioned diffuser assembly.
  • 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 component 500.
  • the collimator 700 can adopt a piece or a group of condenser lenses. Different phase divergence angles at all positions above provide better speckle dissipation effect at the same size.
  • the present disclosure further provides a projector, which includes the above-mentioned light beam dispersing device, and has all the beneficial effects of the above-mentioned diffuser assembly and beam dispersing device, which will not be repeated here.

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Abstract

一种扩散片组件、光束消散斑装置以及投影仪。扩散片组件包括第一移动层(103)、基座(104)、第一弹性件(105)、第二弹性件(106)、供光束穿设的扩散片(101)、第一驱动部(107)和第二驱动部(108)。第一弹性件(105)连接扩散片(101)和第一移动层(103)，且第一弹性件(105)配置为：能够沿平行于扩散片(101)的第一方向(A)发生变形，以使扩散片(101)能够相对于第一移动层(103)沿第一方向(A)移动；第二弹性件(106)连接第一移动层(103)和基座(104)，且第二弹性件(106)配置为：能够沿平行于扩散片(101)的第二方向(B)发生变形，以使第一移动层(103)和扩散片(101)能够相对于基座(104)沿第二方向(B)移动；第一驱动部(107)用于驱动扩散片(101)相对于第一移动层(103)沿第一方向(A)移动，第二驱动部(108)用于驱动第一移动层(103)和扩散片(101)相对于基座(104)沿第二方向(B)移动，第一方向(A)和第二方向(B)相交。

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202110937509.9、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、光束消散斑装置以及投影仪。
本公开第一方面实施例提出了一种扩散片组件，所述扩散片组件包括第一移动层、基座、第一弹性件、第二弹性件以及供光束穿设的扩散片，所述驱动部包括第一驱动部和第二驱动部；
所述第一弹性件连接所述扩散片和所述第一移动层，且所述第一弹性件配置为：能够沿平行于所述扩散片的第一方向发生变形，以使所述扩散片能够相对于所述第一移动层沿所述第一方向移动；
所述第二弹性件连接所述第一移动层和所述基座，且所述第二弹性件配置为：能够沿平行于所述扩散片的第二方向发生变形，以使所述第一移动层和所述扩散片能够相对于所述基座沿所述第二方向移动；
所述第一驱动部用于驱动所述扩散片相对于所述第一移动层沿所述第一方向移动，所述第二驱动部用于驱动所述第一移动层和所述扩散片相对于所述基座沿所述第二方向移动，所述第一方向和所述第二方向相交。
根据本公开的一个实施例，所述扩散片组件还包括第二移动层，所述第一移动层构造为框架结构，所述扩散片设置于所述第二移动层，所述第一弹性件连接所述框架结构和所述第二移动层并对所述第二移动层在光束穿设方向进行支撑，且所述第二移动层与所述框架结构在所述第一方向间隔设置，所述第二弹性件用于对所述第一移动层在光束穿设方向进行支撑并连接于所述基座，以使所述第一移动层和所述基座在光束穿设方向间隔设置；
所述第一驱动部用于驱动所述第二移动层在所述框架结构内且相对于该框架结构在所述第一方向往复移动，所述第二驱动部用于驱动所述第一移动层和所述第二移动层相对于所述基座沿所述第二方向往复移动。
根据本公开的一个实施例，所述框架结构包括依次并首尾连接的第一框架板、第二框架板、第三框架板以及第四框架板，所述第一框架板和所述第三框架板沿所述第一方向相对设置，所述第二框架板和所述第四框架板沿所述第二方向相对设置；所述第二移动层包括沿所述第一方向相背设置的两个第一外侧面，两个所述第一外侧面分别与所述第一框架板和所述第三框架板沿所述第一方向间隔设置；
所述第一弹性件包括沿所述第一方向相对设置并均沿所述第二方向延伸的两个第一簧片，其中一个所述第一簧片连接其中一个所述第一外侧面与所述第二框架板，另一个所述第一簧片连接另一个所述第一外侧面与所述第四框架板；所述第二弹性件包括沿所述第二方向相对设置的两个第二簧片，其中一个所述第二簧片连接所述第二框架板的外侧面和所述基座，另一个所述第二簧片连接所述第四框架板的外侧面和所述基座。
根据本公开的一个实施例，所述第一簧片包括均沿所述第二方向延伸的第一簧片本体和第一支撑片，所述第一簧片本体上形成有沿所述第二方向延伸且两端封闭的第一长条口，所述第一长条口包括沿所述第二方向相对设置的两个第一内边缘、以及沿光束穿设方向相对布置的两个第二内边缘，所述第一支撑片设置于所述第一长条口内且所述第 一支撑片的一端连接于其中一个所述第一内边缘，所述第一支撑片的另一端与另一个所述第一内边缘沿所述第二方向间隔设置，且所述第一支撑片与两个所述第二内边缘均沿光束穿设方向间隔设置，所述第一簧片本体用于与所述第二框架板或所述第四框架板连接，所述第一支撑片用于与所述第一外侧面连接。
根据本公开的一个实施例，所述第二簧片包括沿所述第一方向延伸的第二簧片本体和第二支撑片，所述第二簧片本体上形成有沿所述第一方向延伸且两端封闭的第二长条口，所述第二长条口包括沿所述第一方向相对设置的两个第三内边缘、以及沿光束穿设方向相对布置的两个第四内边缘，所述第二支撑片设置于所述第二长条口内且所述第二支撑片的一端连接于其中一个所述第三内边缘，所述第二支撑片的另一端与另一个所述第三内边缘沿所述第一方向间隔设置，且所述第二支撑片与两个所述第四内边缘均沿光束穿设方向间隔设置，所述第二簧片本体用于与所述基座连接，所述第二支撑片用于与所述外侧面或所述外侧面连接。
根据本公开的一个实施例，所述第一簧片本体的两端分别形成有两个第一卡槽，所述第一外侧面包括第一部分和第二部分，所述第一部分与所述第一支撑片相对贴合并连接，所述第二部分上设置有第一卡块，所述第二框架板的内侧或所述第四框架板的内侧设置有第二卡块，两个所述第一卡槽分别与所述第一卡块和所述第二卡块卡接。
根据本公开的一个实施例，所述第二簧片本体的两端分别形成有两个第二卡槽，所述第二框架板的外侧面或所述第四框架板的外侧面连接均包括第三部分和第四部分，所述第三部分与所述第二支撑片相对贴合连接，所述第四部分上设置有第三卡块，所述基座上设置有第四卡块，两个所述第二卡槽分别与所述第三卡块和所述第四卡块卡接。
根据本公开的一个实施例，所述基座包括基座框架和基座底板，所述基座底板封堵设置于所述基座框架内；所述第二移动层上形成有第一开口，所述扩散片封堵设置于所述第一开口，所述基座底板上形成有第二开口，且所述第二开口沿光束穿设方向与所述第一开口相对设置。
根据本公开的一个实施例，所述基座框架包括相互连接的基座框架本体和基座框架侧板，所述第一移动层和所述基座框架本体在光束穿设方向间隔设置，所述基座底板封堵设置于所述基座框架本体内，所述基座框架侧板沿所述第二方向延伸且在光束穿设方向上凸出于所述基座框架本体，所述基座框架侧板沿所述第二方向的端部设置有所述第四卡块，以与对应的所述第二簧片本体上对应的所述第二卡槽卡接。
根据本公开的一个实施例，所述第一驱动部包括相对设置的第一驱动磁铁和第一通电导体，所述第一驱动磁铁和所述第一通电导体中的一者设置于所述第二移动层，另一者设置于所述基座。
根据本公开的一个实施例，所述第二驱动部包括相对设置的第二驱动磁铁和第二通电导体，所述第二驱动磁铁和所述第二通电导体中的一者设置于所述第一移动层，另一者设置于所述基座。
根据本公开的一个实施例，所述基座包括基座框架和基座底板，所述基座底板封堵设置于所述基座框架内；所述第二移动层上形成有第一开口，所述扩散片封堵设置于所述第一开口，所述基座底板上形成有第二开口，且所述第二开口沿光束穿设方向与所述第一开口相对设置；
所述第一通电导体和所述第二通电导体均设置于所述基座底板的内表面，所述第二移动层上形成有供所述第一驱动磁铁安装的第一安装槽，所述第一移动层上形成有供所述第二驱动磁铁安装的第二安装槽。
根据本公开的一个实施例，所述扩散片组件还包括铺设于所述基座底板的内表面的柔性电路板，所述第一通电导体和所述第二通电导体均连接于所述柔性电路板；
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二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一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、所述第一通电导体以及所述第二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所述第一直线段，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。
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；
所述第二通电导体构造为第二通电线圈，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所述第二直线段，两个所述第二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。
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所述第二单体磁铁之间的第一中性层，所述第一中性层配置为：在所述第一驱动磁铁相对于所述第一通电线圈沿所述第一方向往复移动的过程中，所述第一中性层能够使得与所述第一单体磁铁相对的所述第一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所述第四单体磁铁之间的第二中性层，所述第二中性层配置为：在所述第二驱动磁铁相对于所述第二通电线圈沿所述第二方向往复移动的过程中，所述第二中性层能够使得与所述第三单体磁铁相对的所述第二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二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，所述扩散片组件还包括第二移动层、第一导向支撑件以及第二导向支撑件，所述第一移动层构造为框架结构，所述扩散片设置于所述第二移动层，所述第一导向支撑件设置于所述框架结构上并沿光束穿设方向将所述第二移动层支撑在所述框架结构内，所述第一弹性件连接所述第二移动层和所述第一移动层，且所述第二移动层与所述框架结构在所述第一方向间隔设置；
所述第二导向支撑件设置于所述基座上并沿光束穿设方向将所述第一移动层支撑在所述基座上，所述第二弹性件连接所述基座和所述第一移动层。
根据本公开的一个实施例，所述第一导向支撑件包括沿光束穿设方向间隔设置于所述第一移动层上的两个第一导向支撑柱，所述第二移动层沿所述第一方向可移动地设置于两个所述第一导向支撑柱之间。
根据本公开的一个实施例，所述第二导向支撑件包括沿光束穿设方向间隔设置于所述基座上的两个第二导向支撑柱，所述第一移动层沿所述第二方向可移动地设置于两个所述第二导向支撑柱之间。
本公开第一方面实施例提出了一种扩散片组件，第一弹性件能够沿平行于扩散片的 第一方向发生变形，第二弹性件能够沿平行于扩散片的第二方向发生变形，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扩散片移动的稳定性。而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。通过第一驱动部和第二驱动部分别驱动扩散片沿第一方向和第二方向移动的过程中，随机相位数量也会增加，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为本公开实施例提供了一种扩散片组件的俯视图；
图4为本公开实施例提供了一种扩散片组件的侧视图；
图5为本公开实施例提供了一种扩散片组件沿第二方向剖得的示意图；
图6为本公开实施例提供了另一种扩散片组件的爆炸结构示意图，其中，该图中还示意出了第一导向支撑柱和第二导向支撑柱；
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“第一方向”和“第二方向”可以参照图1所示；光束穿设方向也可以参照图1所示；使用的方位词如“内、外”指的是具体结构轮廓的内和外，使用的术语如“第一、第二、第三以及第四”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，该扩散片组件包括第一移动层103、基座104、第一弹性件105、第二弹性件106以及供光束穿设的扩散片101，驱动部包括第一驱动部107和第二驱动部108；第一弹性件105连接扩散片101和第一移动层103，且第一弹性件105配置为：能够沿平行于扩散片101的第一方向A发生变形，以使扩散片101能够相对于第一移动层103沿第一方向A移动；第二弹性件106连接第一移动层103和基座104，且第二弹性件106配置为：能够沿平行于扩散片101的第二方向B发生变形，以使第一移动层103和扩散片101能够相对于基座104沿第二方向B移动；第一驱动部107用于驱动扩散片101相对于第一移动层103沿第一方向A移动，第二驱动部108用于驱动第一移动层103和扩散片101相对于基座104沿第二方向B移动，且第一方向A和第二方向B相交。
在上述技术方案中，该第一弹性件105能够沿平行于扩散片10的第一方向A发生变形，第二弹性件106能够沿平行于扩散片101的第二方向B发生变形，该第一弹性件105和第二弹性件106一方面可以起到复位的作用，另外一方面可以提高扩散片101移动的稳定性。而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101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101对比传统的旋转式的扩散片，充分地利用了扩散片101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。通过第一驱动部107和第二驱动部108分别驱动扩散片101沿第一方向A和第二方向B移动的过程中，随机相位数量也会增加，提高扩散片101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和图2所示，扩散片组件还包括第二移动层109，第一移动层103构造为框架结构，扩散片101可供光束穿设的设置于第二移动层109，第一弹性件105连接框架结构和第二移动层109并对该第二移动层109在光束穿设方向进行支撑，且第二移动层109与框架结构在第一方向A间隔设置，第二弹性件106用于对第一移动层103在光束穿设 方向进行支撑并连接于基座104，以使第一移动层103和基座104在光束穿设方向间隔设置；第一驱动部107用于驱动第二移动层109在框架结构内且相对于该框架结构在第一方向A往复移动，第二驱动部108用于驱动第一移动层103和第二移动层109相对于基座104沿第二方向B往复移动。
在该实施方式中，首先，将第一移动层103设置为框架结构，并将用于设置扩散片101的第二移动层109沿第一方向A可往复移动地设置于该框架结构内，极大地减少了扩散片组件厚度方向(即光束穿设方向)上的设计，并提高了结构设计的紧凑性；而第一弹性件105和第二弹性件106除了能够起到上述的复位以及提高移动稳定性的作用之外，该第一弹性件105还可以将第二移动层109支撑连接于框架结构内，第二弹性件106还可以将第一移动层103支撑并连接于基座104上，也即第一弹性件105和第二弹性件106可以分别起到对第二移动层109以及第一移动层103的支撑作用，避免第二移动层109沿第一方向A相对于第一移动层103往复移动、以及第一移动层103相对于基座104沿第二方向B往复移动过程中，第二移动层109和第一移动层103在光束穿设方向发生晃动的情况，提高往复移动的稳定性，并且无需单独设置支撑结构，简化结构的设计并利于扩散片组件轻量化及轻薄化的设计。
在一种实施方式中，参照图1、图2所示，扩散片组件的框架结构包括依次并首尾连接的第一框架板1031、第二框架板1032、第三框架板1033以及第四框架板1034，第一框架板1031和第三框架板1033沿第一方向A相对设置，第二框架板1032和第四框架板1034沿第二方向B相对设置；第二移动层109包括沿第一方向A相背设置的两个第一外侧面1091，两个第一外侧面1091分别与第一框架板1031和第三框架板1033沿第一方向A间隔设置。
第一弹性件105包括沿第一方向A相对设置并均沿第二方向B延伸的两个第一簧片1051，其中一个第一簧片1051连接其中一个第一外侧面1091与第二框架板1032，另一个第一簧片1051连接另一个第一外侧面1091与第四框架板1034；第二弹性件106包括沿第二方向B相对设置的两个第二簧片1061，其中一个第二簧片1061连接第二框架板1032的外侧面和基座104，另一个第二簧片1061连接第四框架板1034的外侧面和基座104。
在该实施方式中，首先，将第一移动层103设置为方形框架结构，有效地提高该第一移动层103结构的稳定性；其次，将第一弹性件105设置为两个第一簧片1051，且每 个第一簧片1051连接对应的第一外侧面1091与第二框架板1032和所述第四框架板1034中的一者，在第二移动层109沿第一方向A在方形框架结构内往复移动时，两个第一簧片1051可以起到良好的复位作用，减少第一驱动部107的负载，并且两个第一簧片1051可以提高第二移动层109沿第一方向A往复移动的稳定性；另外，两个第一簧片1051分别用于与第二移动层109的第一外侧面1091相对设置，减少了扩散片组件第一方向A上尺寸的布置之外，还能够减少扩散片组件厚度方向上尺寸的布置，利于扩散片组件的轻薄化设计。同样地，将第二弹性件106设置为两个第二簧片1061，其中一个所述第二簧片1061连接第二框架板1032的外侧面和基座104，另一个第二簧片1061连接第四框架1034的外侧面和所述基座104。在第一移动层103沿第二方向B相对于基座往复移动时，两个第二簧片1061可以起到良好的复位作用，减少第二驱动部108的负载，并且两个第二簧片1061可以提高第一移动层103沿第二方向B往复移动的稳定性；另外，两个第二簧片1061分别用于第二框架板1032的外侧面以及第四框架1034的外侧面相对设置，减少了扩散片组件第二方向B上尺寸的布置之外，还能够减少扩散片组件厚度方向上尺寸的布置，利于扩散片组件的轻薄化设计。
参照图1和图4所示，第一簧片1051包括均沿第二方向B延伸的第一簧片本体10511和第一支撑片10512，第一簧片本体10511上形成有沿第二方向B延伸且两端封闭的第一长条口，第一长条口包括沿第二方向B相对设置的两个第一内边缘10501、以及沿光束穿设方向相对布置的两个第二内边缘10502，第一支撑片10512设置于第一长条口内且第一支撑片10512的一端连接于其中一个第一内边缘10501，第一支撑片10512的另一端与另一个第一内边缘10501沿第二方向B间隔设置，且第一支撑片10512与两个第二内边缘10502均沿光束穿设方向间隔设置，第一簧片本体10511用于与第二框架板1032或第四框架板1034连接，第一支撑片1051用于与第一外侧面1091连接。
在另一种实施方式中，参照图1和图4所示，第二簧片1061包括沿第一方向A延伸的第二簧片本体10611和第二支撑片10612，第二簧片本体10611上形成有沿第一方向A延伸且两端封闭的第二长条口，第二长条口包括沿第一方向A相对设置的两个第三内边缘10601、以及沿光束穿设方向相对布置的两个第四内边缘10602，第二支撑片10612设置于第二长条口内且第二支撑片10612的一端连接于其中一个第三内边缘10601，第二支撑片10612的另一端与另一个第三内边缘10601沿第一方向A间隔设置，且第二支撑片10612与两个第四内边缘10602均沿光束穿设方向间隔设置，第二簧片本体10611用于与 基座104连接，第二支撑片10612用于与第二框架板1032的外侧面或第四框架板1034的外侧面连接连接。
第一簧片1051包括两部分，一部分是第一簧片本体10511，另外一部分是第一支撑片10512。首先，对于该第一支撑片10512来说，该第一支撑片10512沿第二方向B延伸并呈长条状，则在光束穿设方向上具备良好的刚性，通过将该第一支撑片10512相对贴合地与第一外侧面1091连接，则可以对第二移动层109在光束穿设方向起到良好的支撑作用，避免第二移动层109在光束穿设方向上发生晃动；其次对于该第一簧片本体10511来说，除了起到连接第一移动层103的作用之外，还有一个重要的作用是能够沿着第一方向A发生弹性变形，具体地，在第二移动层109沿第一方向A往复移动的过程中，与第一支撑片10512相邻的第一簧片本体10511的两个第一变形臂10514能够沿第一方向A发生变形，起到复位及提高第二移动层109往复移动稳定性的作用。
第二簧片1061也包括两部分，一部分是第二簧片本体10611，另外一部分是第二支撑片10612。首先，对于该第二支撑片10612来说，该第二支撑片10612沿第一方向A延伸并呈长条状，则在光束穿设方向上具备良好的刚性，通过将该第二支撑片10612相对贴合地与第二框架板1032的外侧面或第四框架板1034的外侧面连接，则可以对第一移动层103在光束穿设方向起到良好的支撑作用，将第一移动层103稳定地支撑在基座104上，避免第一移动层103在光束穿设方向上发生晃动；其次对于该第二簧片本体10611来说，除了起到连接第一移动层103及基座104的作用之外，还有一个重要的作用是能够沿着第二方向B发生弹性变形，具体地，在第一移动层103沿第一方向B往复移动的过程中，与第二支撑片10612相邻的第二簧片本体10611的两个第二变形臂10613能够沿第二方向B发生变形，起到复位及提高第一移动层103往复移动稳定性的作用。
还有一点需要作出说明的是，第一支撑片10512与两个第二内边缘10502均沿光束穿设方向间隔设置，则在第二移动层109沿第一方向A往复移动的过程中，第一支撑片10512不会与两个第一变形臂10514发生结构的干涉，保证第一变形臂10514能够发生正常的变形；同样地，第二支撑片10612与两个第四内边缘10602均沿光束穿设方向间隔设置，则在第一移动层103沿第二方向B往复移动的过程中，第二支撑片10612不会与两个第二变形臂10613发生结构的干涉，保证第二变形臂10613能够发生正常的变形。
参照图1、图2以及图3所示，第一簧片本体10511的两端分别形成有两个第一卡槽10510，第一外侧面1091包括第一部分和第二部分，第一部分与第一支撑片10512相对 贴合并连接，第二部分上设置有第一卡块10513，第二框架板1032的内侧或第四框架板1034的内侧设置有第二卡块1030，两个第一卡槽10510分别与第一卡块10513和第二卡块1030卡接；第二簧片本体10611的两端分别形成有两个第二卡槽10610，第二框架板1032的外侧面或第四框架板1034的外侧面连接均包括第三部分和第四部分，第三部分与第二支撑片10612相对贴合连接，第四部分上设置有第三卡块1035，基座104上设置有第四卡块1040，两个第二卡槽10610分别与第三卡块1035和第四卡块1040卡接。通过设置上述相互配合的卡块及卡槽结构，起到了良好的定位作用，便于提高簧片安装的便利性。
参照图1和图2所示，基座104包括基座框架1041和基座底板1042，基座底板1042封堵设置于基座框架1041内；第二移动层109上形成有第一开口1092，扩散片101封堵设置于第一开口1092，基座底板1042上形成有第二开口10420，且第二开口10420沿光束穿设方向与第一开口1092相对设置。
在该实施方式中，将基座104设置为基座框架1041和基座底板1042两部分，且基座底板1042封堵设置于基座框架1041内；则能够有效地提高该基座104结构的稳定性，起到对扩散片组件整体良好的支撑作用；其次，第二移动层109上形成有供扩散片101安装的第一开口1092，减轻第二移动层109重量的同时还利于扩散片组件轻薄化的设计；此外，在基座底板1042上开设与第一开口1092相对的第二开口10420，便于光束穿过该扩散片组件，避免对光束进行止挡。
具体地，参照图1所示，基座框架1041包括相互连接的基座框架本体10411和基座框架侧板10412，第一移动层103和基座框架本体10411在光束穿设方向间隔设置，基座底板1042封堵设置于基座框架本体10411内，基座框架侧板10412沿第二方向B延伸且在光束穿设方向上凸出于基座框架本体10411，基座框架侧板10412沿第二方向B的端部设置有第四卡块1040，以与对应的第二簧片本体10611上对应的第二卡槽10610卡接。也即，通过将基座框架1041设置为该L形结构，除了能够起到连接第一移动层103并便于第二簧片1061的连接作用之外，第一移动层103与基座框架侧板10412大致持平的设计，也可以利用扩散片组件的轻薄化设计。
参照图1和图5所示，第一驱动部107包括相对设置的第一驱动磁铁1071和第一通电导体1072，第一驱动磁铁1071和第一通电导体1072中的一者设置于第二移动层109，另一者设置于基座104。
在另一种实施方式中，参照图1和图5所示，第二驱动部108包括相对设置的第二驱动磁铁1081和第二通电导体1082，第二驱动磁铁1081和所述第二通电导体1082中的一者设置于所述第一移动层103，另一者设置于基座104。
例如，第一驱动磁铁1071设置于第二移动层109上且第一驱动磁铁1071的N极和S极沿光束穿设方向布置，第一通电导体1072设置于基座104上并与第一驱动磁铁1071相对设置，且第一通电导体1072的第一直线段10720沿第二方向B延伸；第二驱动部108包括第二驱动磁铁1081和第二通电导体1082，第二驱动磁铁1081设置于第一移动层103且第二驱动磁铁1081的N极和S极沿光束穿设方向布置，第二通电导体1082设置于基座104上并与第二驱动磁铁1081相对设置，且的第二通电导体1082的第二直线段10820沿第一方向A延伸。
可知的是，第一通电导体1072沿第二方向B延伸的第一直线段10720位于N极和S极沿光束穿设方向布置的第一驱动磁铁1071所产生的磁场内，根据左手定则，第一直线段10720受到沿第一方向A的安培力，而第一驱动磁铁1071受到与第一直线段10720方向相反的反作用力，又因第一驱动磁铁1071设置于第二移动层109上，则第二移动层109能够沿第一方向A进行往复移动。同理，也可以运用左手定则推理出：构造为第二驱动磁铁1081和第二通电导体1082的第二驱动部108能够驱动第一移动层103沿第二方向B往复移动。
而通过将第一驱动部107和第二驱动部108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。
可选地，参照图1和图2所示，基座104包括基座框架1041和基座底板1042，基座底板1042封堵设置于基座框架1041内；第二移动层109上形成有第一开口1092，扩散片101封堵设置于第一开口1092，基座底板1042上形成有第二开口10420，且第二开口10420沿光束穿设方向与第一开口1092相对设置；第一通电导体1072和第二通电导体1082均设置于基座底板1042的内表面，第二移动层109上形成有供第一驱动磁铁1071安装的第一安装槽1070，第一移动层103上形成有供第二驱动磁铁1081安装的第二安装槽1080。
在该实施方式中，通过将第一通电导体1072和第二通电导体1082均设置于基座底板1042的内表面，除了能够有效地利用布置空间，提高结构布置的紧凑性之外，还能够 在光束穿设方向减小尺寸的布置，便于扩散片组件轻薄化的设计；而第二移动层109和第一移动层103上分别形成有供第一驱动磁铁1071和第二驱动磁铁1081安装的第一安装槽1070和第二安装槽1080，提高第一驱动磁铁1071和第二驱动磁铁1081安装便利性的同时，利用扩散片组件轻量化的设计。
参照图1所示，扩散片组件还包括铺设于基座底板1042的内表面的柔性电路板1043，第一通电导体1072和第二通电导体1082均连接于柔性电路板1043。在该实施方式中，通电导体可以利用柔性电路板1043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1043，成为柔性电路板1043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。
在其他的实施方式中，参照图1、图2以及图5所示，扩散片组件还包括控制器、第一检测元件110以及第一检测元件，第一检测元件110用于检测第二移动层109的第一运动信息，第一检测元件用于检测第一移动层103的第二运动信息，第一检测元件110、第一检测元件、第一通电导体1072以及第二通电导体1082均与控制器电连接；控制器用于根据第一检测元件110检测的第一运动信息控制第一通电导体1072工作，且用于根据第一检测元件检测的第二运动信息控制第二通电导体1082工作。
在该实施方式中，通过设置用于检测第二移动层109的第一运动信息的第一检测元件110和用于检测第一移动层103的第二运动信息的第一检测元件，从而可以实时地对第二移动层109和第一移动层103的运动状态进行监测，也即能够对扩散片101在第一方向A和第二方向B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103和/或第二移动层109的运动状态发生异常并需要对第一移动层103和/或第二移动层109的运动状态进行调整时，控制器通过对与第一移动层103相对应的第二通电导体1082的电流大小和方向进行调整，和/或，对与第二移动层6相对应的第一通电导体1072的电流大小和方向进行调整，进而调整第一移动层103和/或第二移动层109所受的力的大小和方向，进而对第一移动层103和第二移动层109的运动状态进行调整，也即实现对扩散片101在第一方向A和第二方向B运动状态的调整。
可选地，上述的第一检测元件110和第一检测元件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103和第二移动层109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110和第一检测元件的具体类型作限定。
可选地，参照图1和图5所示，第一驱动磁铁1071包括沿第一方向A依次布置的第一单体磁铁10711和第二单体磁铁10712，第一单体磁铁10711和第二单体磁铁10712的N极和S极均沿光束穿设方向布置，且第一单体磁铁10711和第二单体磁铁10712的磁极方向相反；第一通电导体1072构造为第一通电线圈，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10720，两个第一直线段10720分别用于与第一单体磁铁10711和第二单体磁铁10712相对设置；第二驱动磁铁1081包括沿第二方向B依次布置的第三单体磁铁10811和第四单体磁铁10812，第三单体磁铁10811和第四单体磁铁10812的N极和S极均沿光束穿设方向布置，且第三单体磁铁10811和第四单体磁铁10812的磁极方向相反；第二通电导体1082构造为第二通电线圈，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10820，两个第二直线段10820分别用于与第三单体磁铁10811和第四单体磁铁10812相对设置。
在该实施方式中，在第一单体磁铁10711和第二单体磁铁10712的作用下，第一通电线圈的两个第一直线段10720均受到安培力，且两个第一直线段10820受到的安培力的方向均沿第一方向A延伸且同向，对应地，第一单体磁铁10711和第二单体磁铁10712均受到沿第一方向A延伸且同向的安培力，又因第一驱动磁铁107设置于第二移动层109上，则该第二移动层109受到沿第一方向A延伸的安培力，第二移动层109带动其上的扩散片101沿第一方向A往复移动。
同样地，在第三单体磁铁10811和第四单体磁铁10812的作用下，第二通电线圈的两个第二直线段10820均受到安培力，且两个第二直线段10820受到的安培力的方向均沿第二方向B延伸且同向，对应地，第三单体磁铁10811和第四单体磁铁10812均受到沿第二方向B延伸且同向的安培力，又因第二驱动磁铁108设置于第一移动层103上，则该第一移动层103受到沿第一方向B延伸的安培力，第一移动层103带动第二移动层109及扩散片101沿第二方向A往复移动。
第一通电线圈能够充分地利用第一单体磁铁10711和第二单体磁铁10712在厚度方向两侧产生的磁场，且第一驱动磁铁1071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，第一通电线圈可以采用跑道形设计，第一单体磁铁10711和第二单 体磁铁10712在第二方向B上的尺寸可以与上述的第一直线段10720长度相等，以将第一通电线圈无效圆弧段压缩至最短，提高第一通电线圈利用率，且该第一驱动磁铁1071、第一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，第二通电线圈能够充分地利用第三单体磁铁10811和第四单体磁铁10812在厚度方向两侧产生的磁场，且第二驱动磁铁1081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，第二通电线圈可以采用跑道形设计，第三单体磁铁10811和第四单体磁铁10812在第一方向A上的尺寸可以与上述的第二直线段10820长度相等，以将第二通电线圈无效圆弧段压缩至最短，提高第二通电线圈利用率，且该第一驱动磁铁1081、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。
参照图1和图5所示，第一驱动磁铁1071还包括设置于第一单体磁铁10711和第二单体磁铁10712之间的第一中性层10713，第二驱动磁铁1081还包括设置于第三单体磁铁10811和第四单体磁铁10812之间的第二中性层10813；
第一中性层10713配置为：在第一驱动磁铁1071相对于第一通电线圈沿第一方向A往复移动的过程中，第一中性层10713能够使得与第一单体磁铁10711相对的第一直线段10720不会与第二单体磁铁10712相对，并能够使得与第二单体磁铁10712相对的第一直线段10720不会与第一单体磁铁10711相对；第二中性层10813配置为：在第二驱动磁铁1081相对于第二通电线圈沿第二方向B往复移动的过程中，第二中性层10813能够使得与第三单体磁铁10811相对的第二直线段10820不会与第四单体磁铁10812相对，并能够使得与第四单体磁铁10812相对的第二直线段10820不会与第三单体磁铁10811相对。
通过在第一单体磁铁10711和第二单体磁铁10712之间设置第一中性层10713，在第一驱动磁铁1071相对于第一通电线圈沿第一方向A往复移动的过程中，第一中性层10713能够使得与第一单体磁铁10711相对的第一直线段10720不会与第二单体磁铁10712相对，并能够使得与第二单体磁铁10712相对的第一直线段10720不会与第一单体磁铁10711相对，避免产生与第二移动层109移动方向相反的阻力，提高第二移动层109在第一方向A往复移动的流畅性。
同样地，通过在第三单体磁铁10811和第四单体磁铁10812之间设置第二中性层 10813，在第二驱动磁铁1071相对于第二通电线圈沿第二方向B往复移动的过程中，第二中性层10813能够使得与第三单体磁铁10811相对的第二直线段10820不会与第四单体磁铁10812相对，并能够使得与第四单体磁铁10812相对的第二直线段10820不会与第三单体磁铁10811相对，避免产生与第一移动层103移动方向相反的阻力，提高第一移动层103在第二方向B往复移动的流畅性。
参照图6所示，扩散片组件还包括第二移动层109、第一导向支撑件111以及第二导向支撑件112，第一移动层103构造为框架结构，扩散片101设置于第二移动层109，第一导向支撑件111设置于框架结构上并沿光束穿设方向将第二移动层109支撑在框架结构内，第一弹性件105连接第二移动层109和第一移动层103，且第二移动层109与框架结构在第一方向A间隔设置；第二导向支撑件112设置于基座104上并沿光束穿设方向将第一移动层103支撑在基座104上，第二弹性件106连接基座104和第一移动层103。
在该实施方式中，第一导向支撑件111可以有效地将第二移动层109支撑于框架结构内，并能够保证第二移动层109能够沿第一方向A往复移动；第二导向支撑件112可以有效地将第一移动层103支撑于基座104上，并能够保证第一移动层103能够相对该基座104沿第二方向B往复移动。
参照图6所示，第一导向支撑件111包括沿光束穿设方向间隔设置于第一移动层103上的两个第一导向支撑柱1110，两个第一导向支撑柱1110可以沿第二方向B延伸，第二移动层109沿第一方向A可移动地设置于两个第一导向支撑柱1110之间。
在其他的实施方式中，参照图6所示，第二导向支撑件112包括沿光束穿设方向间隔设置于基座104上的两个第二导向支撑柱1120，两个第二导向支撑柱1120可以沿第一方向A延伸，第一移动层103沿第二方向B可移动地设置于两个第二导向支撑柱1120之间。
该第一导向支撑柱1110和第二导向支撑柱1120结构简单，并能够起到良好的导向支撑的作用，并便于扩散片组件轻量化的设计。但是，本公开并不对该第一导向支撑件111和第二导向支撑件112的具体结构形式作限定。
在设置有该第一导向支撑件111和第二导向支撑件112的基础上，第一簧片1051和第二簧片1061的结构也会发生相应的变化，也即该第一导向支撑件111取代了第一支撑片10512，第二导向支撑件112取代了第二支撑片10612，其他部分的结构类似于上述的第一簧片1051和第二簧片1061，具体可以参照6所示。
本公开还提供一种光束消散斑装置，参照图7所示，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，散射件600包括上述的扩散片组件。
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利用扩散片101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。
本公开另外还提供一种投影仪，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。
另需要说明的是，在上述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，为了避免不必要的重复，本公开对各种可能的组合方式不再另行说明。
此外，本公开的各种不同的实施方式之间也可以进行任意组合，只要其不违背本公开的思想，其同样应当视为本公开所公开的内容。

Claims (23)

  1. 一种扩散片组件，其特征在于，所述扩散片组件包括第一移动层(103)、基座(104)、第一弹性件(105)、第二弹性件(106)以及供光束穿设的扩散片(101)，所述扩散片组件还包括第一驱动部(107)和第二驱动部(108)；
    所述第一弹性件(105)连接所述扩散片(101)和所述第一移动层(103)，且所述第一弹性件(105)配置为：能够沿平行于所述扩散片(101)的第一方向(A)发生变形，以使所述扩散片(101)能够相对于所述第一移动层(103)沿所述第一方向(A)移动；
    所述第二弹性件(106)连接所述第一移动层(103)和所述基座(104)，且所述第二弹性件(106)配置为：能够沿平行于所述扩散片(101)的第二方向(B)发生变形，以使所述第一移动层(103)和所述扩散片(101)能够相对于所述基座(104)沿所述第二方向(B)移动；
    所述第一驱动部(107)用于驱动所述扩散片(101)相对于所述第一移动层(103)沿所述第一方向(A)移动，所述第二驱动部(108)用于驱动所述第一移动层(103)和所述扩散片(101)相对于所述基座(104)沿所述第二方向(B)移动，所述第一方向(A)和所述第二方向(B)相交。
  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第二移动层(109)，所述第一移动层(103)构造为框架结构，所述扩散片(101)设置于所述第二移动层(109)，所述第一弹性件(105)连接所述框架结构和所述第二移动层(109)并对所述第二移动层(109)在光束穿设方向进行支撑，且所述第二移动层(109)与所述框架结构在所述第一方向(A)间隔设置，所述第二弹性件(106)用于对所述第一移动层(103)在光束穿设方向进行支撑并连接于所述基座(104)，以使所述第一移动层(103)和所述基座(104)在光束穿设方向间隔设置；
    所述第一驱动部(107)用于驱动所述第二移动层(109)在所述框架结构内且相对于该框架结构在所述第一方向(A)往复移动，所述第二驱动部(108)用于驱动所述第一移动层(103)和所述第二移动层(109)相对于所述基座(104)沿所述第二方向(B)往复移动。
  3. 根据权利要求2所述的扩散片组件，其特征在于，所述框架结构包括依次并首尾 连接的第一框架板(1031)、第二框架板(1032)、第三框架板(1033)以及第四框架板(1034)，所述第一框架板(1031)和所述第三框架板(1033)沿所述第一方向(A)相对设置，所述第二框架板(1032)和所述第四框架板(1034)沿所述第二方向(B)相对设置；所述第二移动层(109)包括沿所述第一方向(A)相背设置的两个第一外侧面(1091)，两个所述第一外侧面(1091)分别与所述第一框架板(1031)和所述第三框架板(1033)沿所述第一方向(A)间隔设置；
    所述第一弹性件(105)包括沿所述第一方向(A)相对设置的两个第一簧片(1051)，其中一个所述第一簧片(1051)连接其中一个所述第一外侧面(1091)与所述第二框架板(1032)和所述第四框架板(1034)中的一者，另一个所述第一簧片(1051)连接另一个所述第一外侧面(1091)与所述第二框架板(1032)和所述第四框架板(1034)中的一者；所述第二弹性件(106)包括沿所述第二方向(B)相对设置的两个第二簧片(1061)，其中一个所述第二簧片(1061)连接所述第二框架板(1032)的外侧面和所述基座(104)，另一个所述第二簧片(1061)连接所述第四框架板(1034)的外侧面和所述基座(104)。
  4. 根据权利要求3所述的扩散片组件，其特征在于，所述第一簧片(1051)包括均沿所述第二方向(B)延伸的第一簧片本体(10511)和第一支撑片(10512)，所述第一簧片本体(10511)上形成有沿所述第二方向(B)延伸且两端封闭的第一长条口，所述第一长条口包括沿所述第二方向(B)相对设置的两个第一内边缘(10501)、以及沿光束穿设方向相对布置的两个第二内边缘(10502)，所述第一支撑片(10512)设置于所述第一长条口内且所述第一支撑片(10512)的一端连接于其中一个所述第一内边缘(10501)，所述第一支撑片(10512)的另一端与另一个所述第一内边缘(10501)沿所述第二方向(B)间隔设置，且所述第一支撑片(10512)与两个所述第二内边缘(10502)均沿光束穿设方向间隔设置，所述第一簧片本体(10511)用于与所述第二框架板(1032)或所述第四框架板(1034)连接，所述第一支撑片(1051)用于与所述第一外侧面(1091)连接。
  5. 根据权利要求3所述的扩散片组件，其特征在于，所述第二簧片(1061)包括沿所述第一方向(A)延伸的第二簧片本体(10611)和第二支撑片(10612)，所述第二簧片本体(10611)上形成有沿所述第一方向(A)延伸且两端封闭的第二长条口，所述第 二长条口包括沿所述第一方向(A)相对设置的两个第三内边缘(10601)、以及沿光束穿设方向相对布置的两个第四内边缘(10602)，所述第二支撑片(10612)设置于所述第二长条口内且所述第二支撑片(10612)的一端连接于其中一个所述第三内边缘(10601)，所述第二支撑片(10612)的另一端与另一个所述第三内边缘(10601)沿所述第一方向(A)间隔设置，且所述第二支撑片(10612)与两个所述第四内边缘(10602)均沿光束穿设方向间隔设置，所述第二簧片本体(10611)用于与所述基座(104)连接，所述第二支撑片(10612)用于与所述第二框架板(1032)的外侧面或所述第四框架板(1034)的外侧面连接。
  6. 根据权利要求4所述的扩散片组件，其特征在于，所述第一簧片本体(10511)的两端分别形成有两个第一卡槽(10510)，所述第一外侧面(1091)包括第一部分和第二部分，所述第一部分与所述第一支撑片(10512)相对贴合并连接，所述第二部分上设置有第一卡块(10513)，所述第二框架板(1032)的内侧或所述第四框架板(1034)的内侧设置有第二卡块(1030)，两个所述第一卡槽(10510)分别与所述第一卡块(10513)和所述第二卡块(1030)卡接。
  7. 根据权利要求5所述的扩散片组件，其特征在于，所述第二簧片本体(10611)的两端分别形成有两个第二卡槽(10610)，所述第二框架板(1032)的外侧面或所述第四框架板(1034)的外侧面均包括第三部分和第四部分，所述第三部分与所述第二支撑片(10612)相对贴合连接，所述第四部分上设置有第三卡块(1035)，所述基座(104)上设置有第四卡块(1040)，两个所述第二卡槽(10610)分别与所述第三卡块(1035)和所述第四卡块(1040)卡接。
  8. 根据权利要求7所述的扩散片组件，其特征在于，所述基座(104)包括基座框架(1041)和基座底板(1042)，所述基座底板(1042)封堵设置于所述基座框架(1041)内；所述第二移动层(109)上形成有第一开口(1092)，所述扩散片(101)封堵设置于所述第一开口(1092)，所述基座底板(1042)上形成有第二开口(10420)，且所述第二开口(10420)沿光束穿设方向与所述第一开口(1092)相对设置。
  9. 根据权利要求8所述的扩散片组件，其特征在于，所述基座框架(1041)包括相 互连接的基座框架本体(10411)和基座框架侧板(10412)，所述第一移动层(103)和所述基座框架本体(10411)在光束穿设方向间隔设置，所述基座底板(1042)封堵设置于所述基座框架本体(10411)内，所述基座框架侧板(10412)沿所述第二方向(B)延伸且在光束穿设方向上凸出于所述基座框架本体(10411)，所述基座框架侧板(10412)沿所述第二方向(B)的端部设置有所述第四卡块(1040)，以与对应的所述第二簧片本体(10611)上对应的所述第二卡槽(10610)卡接。
  10. 根据权利要求2所述的扩散片组件，其特征在于，所述第一驱动部(107)包括相对设置的第一驱动磁铁(1071)和第一通电导体(1072)，所述第一驱动磁铁(1071)和所述第一通电导体(1072)中的一者设置于所述第二移动层(109)，另一者设置于所述基座(104)。
  11. 根据权利要求2所述的扩散片组件，其特征在于，所述第二驱动部(108)包括相对设置的第二驱动磁铁(1081)和第二通电导体(1082)，所述第二驱动磁铁(1081)和所述第二通电导体(1082)中的一者设置于所述第一移动层(103)，另一者设置于所述基座(104)。
  12. 根据权利要求10所述的扩散片组件，其特征在于，所述第二驱动部(108)包括相对设置的第二驱动磁铁(1081)和第二通电导体(1082)，所述第二驱动磁铁(1081)和所述第二通电导体(1082)中的一者设置于所述第一移动层(103)，另一者设置于所述基座(104)；
    所述基座(104)包括基座框架(1041)和基座底板(1042)，所述基座底板(1042)封堵设置于所述基座框架(1041)内；所述第二移动层(109)上形成有第一开口(1092)，所述扩散片(101)封堵设置于所述第一开口(1092)，所述基座底板(1042)上形成有第二开口(10420)，且所述第二开口(10420)沿光束穿设方向与所述第一开口(1092)相对设置；
    所述第一通电导体(1072)和所述第二通电导体(1082)均设置于所述基座底板(1042)的内表面，所述第二移动层(109)上形成有供所述第一驱动磁铁(1071)安装的第一安装槽(1070)，所述第一移动层(103)上形成有供所述第二驱动磁铁(1081)安装的第二安装槽(1080)。
  13. 根据权利要求12所述的扩散片组件，其特征在于，所述扩散片组件还包括铺设于所述基座底板(1042)的内表面的柔性电路板(1043)，所述第一通电导体(1072)和所述第二通电导体(1082)均连接于所述柔性电路板(1043)。
  14. 根据权利要求12所述的扩散片组件，其特征在于，
    所述扩散片组件还包括控制器、第二检测元件以及第二检测元件，所述第二检测元件用于检测所述第二移动层(109)的第一运动信息，所述第二检测元件用于检测所述第一移动层(103)的第二运动信息，所述第二检测元件、所述第二检测元件、所述第一通电导体(1072)以及所述第二通电导体(1082)均与所述控制器电连接；
    所述控制器用于根据所述第二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(1072)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(1082)工作。
  15. 根据权利要求10所述的扩散片组件，其特征在于，所述第一驱动磁铁(1071)包括沿所述第一方向(A)依次布置的第一单体磁铁(10711)和第二单体磁铁(10712)，所述第一单体磁铁(10711)和所述第二单体磁铁(10712)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(10711)和所述第二单体磁铁(10712)的磁极方向相反；
    所述第一通电导体(1072)构造为第一通电线圈，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(10720)，两个所述第一直线段(10720)分别用于与所述第一单体磁铁(10711)和所述第二单体磁铁(10712)相对设置。
  16. 根据权利要求11所述的扩散片组件，其特征在于，所述第二驱动磁铁(1081)包括沿所述第二方向(B)依次布置的第三单体磁铁(10811)和第四单体磁铁(10812)，所述第三单体磁铁(10811)和所述第四单体磁铁(10812)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(10811)和所述第四单体磁铁(10812)的磁极方向相反；
    所述第二通电导体(1082)构造为第二通电线圈，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(10820)，两个所述第二直线段(10820)分别用于与所述第三单体磁铁(10811)和所述第四单体磁铁(10812)相对设置。
  17. 根据权利要求15所述的扩散片组件，其特征在于，所述第一驱动磁铁(1071)还包括设置于所述第一单体磁铁(10711)和所述第二单体磁铁(10712)之间的第一中性层(10713)，所述第一中性层(10713)配置为：在所述第一驱动磁铁(1071)相对于所述第一通电线圈沿所述第一方向(A)往复移动的过程中，所述第一中性层(10713)能够使得与所述第一单体磁铁(10711)相对的所述第一直线段(10720)不会与所述第二单体磁铁(10712)相对，并能够使得与所述第二单体磁铁(10712)相对的所述第一直线段(10720)不会与所述第一单体磁铁(10711)相对。
  18. 根据权利要求16所述的扩散片组件，其特征在于，所述第二驱动磁铁(1081)还包括设置于所述第三单体磁铁(10811)和所述第四单体磁铁(10812)之间的第二中性层(10813)；所述第二中性层(10813)配置为：在所述第二驱动磁铁(1081)相对于所述第二通电线圈沿所述第二方向(B)往复移动的过程中，所述第二中性层(10813)能够使得与所述第三单体磁铁(10811)相对的所述第二直线段(10820)不会与所述第四单体磁铁(10812)相对，并能够使得与所述第四单体磁铁(10812)相对的所述第二直线段(10820)不会与所述第三单体磁铁(10811)相对。
  19. 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二移动层(109)、第一导向支撑件(111)以及第二导向支撑件(112)，所述第一移动层(103)构造为框架结构，所述扩散片(101)设置于所述第二移动层(109)，所述第一导向支撑件(111)设置于所述框架结构上并沿光束穿设方向将所述第二移动层(109)支撑在所述框架结构内，所述第一弹性件(105)连接所述第二移动层(109)和所述第一移动层(103)，且所述第二移动层(109)与所述框架结构在所述第一方向(A)间隔设置；
    所述第二导向支撑件(112)设置于所述基座(104)上并沿光束穿设方向将所述第一移动层(103)支撑在所述基座(104)上，所述第二弹性件(106)连接所述基座(104)和所述第一移动层(103)。
  20. 根据权利要求19所述的扩散片组件，其特征在于，所述第一导向支撑件(111)包括沿光束穿设方向间隔设置于所述第一移动层(103)上的两个第一导向支撑柱(1110)，所述第二移动层(109)沿所述第一方向(A)可移动地设置于两个所述第一导向支撑柱(1110)之间。
  21. 根据权利要求19所述的扩散片组件，其特征在于，所述第二导向支撑件(112)包括沿光束穿设方向间隔设置于所述基座(104)上的两个第二导向支撑柱(1120)，所述第一移动层(103)沿所述第二方向(B)可移动地设置于两个所述第二导向支撑柱(1120)之间。
  22. 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1-21中任意一项所述的扩散片组件。
  23. 一种投影仪，其特征在于，所述投影仪包括根据权利要求22所述的光束消散斑装置。
PCT/CN2022/105284 2021-08-16 2022-07-12 扩散片组件、光束消散斑装置以及投影仪 WO2023020166A1 (zh)

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