CN219916154U - Dynamic light diffusion device and projector - Google Patents
Dynamic light diffusion device and projector Download PDFInfo
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- CN219916154U CN219916154U CN202321175970.6U CN202321175970U CN219916154U CN 219916154 U CN219916154 U CN 219916154U CN 202321175970 U CN202321175970 U CN 202321175970U CN 219916154 U CN219916154 U CN 219916154U
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 71
- 230000003287 optical effect Effects 0.000 claims abstract description 52
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 13
- 230000009471 action Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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Abstract
The utility model discloses a dynamic light diffusion device and a projector, wherein the light diffusion device comprises a base, an optical diffusion sheet, a spring piece assembly and a driving assembly; the elastic sheet component is used for installing the optical diffusion sheet; the spring plate assembly comprises a first spring plate and a second spring plate which are connected in a laminated manner; the first elastic sheet is fixed on the base, and the second elastic sheet is fixed on the first elastic sheet; the first elastic sheet and the second elastic sheet drive the optical diffusion sheet to do reciprocating motion in the X direction or the Y direction under the drive of the driving component respectively; the driving assembly comprises a driving magnet connected with the first elastic piece and the second elastic piece respectively and a driving coil arranged on the base; the driving magnet is arranged above the driving coil; according to the utility model, the second elastic piece is arranged in the first elastic piece, and the first elastic piece, the first elastic arm, the second elastic piece and the second elastic arm are integrally designed, so that the action linearity and stability of the elastic piece group are improved, the speckle eliminating quality of the optical diffusion sheet is improved, and the cost is effectively reduced.
Description
Technical Field
The present utility model relates to the field of laser projection technology, and in particular, to a dynamic light diffusing device and a projector.
Background
A projector as a laser projection display technology is a device that can project images or videos onto a curtain or a wall, and is widely used in homes, offices, schools, and entertainment venues. The principle of eliminating speckle is to set several groups of diffusion sheets in different positions of the light path to reduce the coherence of laser in space and time and to eliminate speckle. The existing diffusion sheets are generally divided into dynamic diffusion sheet groups and static diffusion sheet groups, and the effect of the dynamic diffusion sheets is better than that of the static diffusion sheets. But the following defects exist in the dynamic diffusion mode: 1. the driving component has a complex structure and is inconvenient to assemble; 2. the elastic structure for driving the diffusion sheet to act is unreasonable, so that the action stability of the diffusion sheet is poor, and the speckle eliminating effect is directly influenced; 3. the overall structure intensity is not high, and the structure is complicated, and whole volume is big, is difficult to realize miniaturized design, and manufacturing cost is high.
Therefore, a miniaturized dynamic light diffusion device with strong motion stability, high structural strength and low production cost needs to be continuously developed to solve the problems in the prior art.
Disclosure of Invention
Therefore, in order to solve the problems of the prior art, one of the purposes of the present utility model is to provide a dynamic light diffusion device, wherein a second elastic sheet is disposed inside a first elastic sheet, and the first elastic sheet, the first elastic arm, the second elastic sheet and the second elastic arm are integrally designed, so that the action linearity and stability of the elastic sheet group are improved, the speckle eliminating quality of the optical diffusion sheet is improved, and the cost is effectively reduced; in addition, by improving the structures of the first elastic arm and the second elastic arm and the connection mode of the second elastic piece and the first elastic piece, the deformation effect of the elastic piece is better under the same magnetic field condition; the opposite sides of the first elastic sheet and the second elastic sheet are used as elastic arms for action, and are matched with driving components which are arranged oppositely, so that balanced stress of the optical diffusion sheet and stable action in the X direction and the Y direction are ensured, and the action stability is further improved;
on the other hand, the optical diffusion sheet is installed in the installation hole of the second elastic sheet in an interference manner, and the limiting part is arranged to match with the inner bending part, so that the driving magnet and the optical diffusion sheet can be respectively positioned, interference factors of a magnetic field of the driving magnet and an elastic sheet group can be improved, and the design is ingenious; the structure is also beneficial to improving the area utilization rate of the optical diffusion sheet, weakening the coherence of laser better and realizing better speckle dissipation effect.
Another object of the present utility model is to provide a projector including the dynamic light diffusing device.
In order to achieve one of the above objects, the present utility model provides the following technical solutions:
a dynamic light diffusion device comprises a base, an optical diffusion sheet, a spring piece assembly and a driving assembly, wherein the optical diffusion sheet, the spring piece assembly and the driving assembly are arranged on the base; the elastic sheet component is used for installing the optical diffusion sheet; the spring plate assembly comprises a first spring plate and a second spring plate which are connected in a laminated mode; the first elastic sheet is fixed on the base, and the second elastic sheet is fixed on the first elastic sheet; the first elastic sheet and the second elastic sheet drive the optical diffusion sheet to do reciprocating motion in the X direction or the Y direction under the drive of the driving component respectively; the driving assembly comprises a first driving magnet, a second driving magnet and a first driving wire package and a second driving wire package which are respectively connected with the first elastic sheet and the second elastic sheet, and the first driving wire package and the second driving wire package are arranged on the base; the first driving magnet and the second driving magnet are respectively and correspondingly arranged above the first driving wire package and the second driving wire package.
Further, the first elastic piece is fixed with the base through a first elastic arm; the first elastic arm comprises a first fixed end and a first free end; the first free end is formed by bending and extending the first elastic sheet, and the first fixed end is arranged on the base through a fastener; a first gap exists between the part of the first elastic arm, which is positioned between the first fixed end and the first free end, and the first elastic sheet main body; and first mounting parts for fixing the first driving magnet are arranged on the first elastic piece along the two sides of the deformation direction of the first elastic arm.
Further, the second elastic piece is fixed on the inner side of the first elastic piece through a second elastic arm; the second elastic arm comprises a second fixed end and a second free end; the second free end is formed by bending and extending a second elastic sheet, and the second fixed end is connected with the first elastic sheet; a second gap exists between the part of the second elastic arm positioned between the second fixed end and the second free end and the second elastic sheet main body; and second mounting parts for fixing the second driving magnet are arranged on the second elastic piece along the two sides of the deformation direction of the second elastic arm.
Further, the second elastic sheet is connected with the first elastic sheet through laser welding or dispensing.
Further, the edges of the first elastic sheet and/or the second elastic sheet are bent and provided with a first reinforcing strip and/or a second reinforcing strip; the first reinforcing strip and/or the second reinforcing strip are/is correspondingly positioned above the first gap/the second gap respectively.
Further, the second elastic sheet is provided with a mounting hole for mounting the optical diffusion sheet, and the optical diffusion sheet is mounted in the mounting hole in an interference manner.
Further, limit parts for fixing the optical diffusion sheets are respectively bent around the mounting holes.
Further, two first driving wire packages and two second driving wire packages are respectively arranged on the base along the X direction and the Y direction; the first elastic sheet and the second elastic sheet are respectively provided with a first driving magnet and a second driving magnet which correspond to the first driving wire package and the second driving wire package.
Further, a first adjusting opening for adjusting the deformation amount of the first elastic arm is formed in the first elastic sheet, close to the first free end of the first elastic arm; the second elastic piece is provided with a second adjusting opening for adjusting the deformation amount of the second elastic arm, wherein the second free end of the second elastic piece, which is close to the second elastic arm.
Further, two first elastic arms are respectively and oppositely arranged on the first elastic sheet; two second elastic arms are oppositely arranged on the second elastic sheet respectively.
Further, the base is also provided with a circuit board electrically connected with the first driving wire package and the second driving wire package; the base is provided with at least two limit protrusions, and the circuit board is provided with limit holes matched with the limit protrusions; the circuit board is arranged on the base through the matching of the limiting hole and the limiting protrusion; the first driving wire package and the second driving wire package are sleeved on the corresponding limiting protrusions and are located above the circuit board.
In order to achieve the second purpose, the utility model provides the following technical scheme: a projector comprises the dynamic light diffusion device.
Compared with the prior art, the utility model has the beneficial effects that at least the following aspects are:
1. according to the utility model, the second elastic piece is arranged in the first elastic piece, and the first elastic piece, the first elastic arm, the second elastic piece and the second elastic arm are integrally designed, so that the action linearity and stability of the elastic piece group are improved, the speckle eliminating quality of the optical diffusion sheet is improved, and the cost is effectively reduced; in addition, by improving the structures of the first elastic arm and the second elastic arm, the deformation effect of the elastic sheet is better under the same magnetic field condition; the opposite sides of the first elastic sheet and the second elastic sheet are used as elastic arms for action, and are matched with driving components which are arranged oppositely, so that balanced stress of the optical diffusion sheet and stable action in the X direction and the Y direction are ensured, and the action stability is further improved;
further, the first elastic arm and the second elastic arm are formed by bending the first elastic piece and the second elastic piece respectively, so that the first fixed end of the first elastic arm is fixed with the base, the first free end and the first elastic piece are integrally formed, and meanwhile, a first gap exists between the first fixed end and the first free end and the first elastic piece main body; the second fixed end of the second elastic arm is fixed with the first elastic piece, the second free end and the second elastic piece are integrally formed, and meanwhile, a second gap exists between the second fixed end and the second free end and the second elastic piece main body; the corresponding gap is provided with a reinforcing strip in a bending way, so that the plane bearing force of the first elastic piece and the second elastic piece can be greatly improved, the deformation effect is good, and the action linearity and stability of the elastic piece group are further improved;
on the other hand, the optical diffusion sheet is installed in the installation hole of the second elastic sheet in an interference manner, and the limiting part is arranged to match with the inner bending part, so that the driving magnet and the optical diffusion sheet can be respectively positioned, interference factors of a magnetic field of the driving magnet and an elastic sheet group can be improved, and the design is ingenious; the structure is also beneficial to improving the area utilization rate of the optical diffusion sheet, weakening the coherence of laser better and realizing better speckle dissipation effect;
2. the motion of the optical diffusion sheet in the X direction and the Y direction can be mutually independent, can move simultaneously or independently, and can flexibly set one or two groups of corresponding driving coils and driving magnets in the X direction and the Y direction according to requirements, and the generated force can independently control the motion of the optical diffusion sheet in the X direction and the Y direction respectively;
3. the utility model has simple structure, the whole structure can be divided into two parts of the spring plate group, the driving magnet group and the base and the driving coil group, and the spring plate group, the driving magnet group and the base are mutually embedded, the process is simple, the manufacturing cost is greatly reduced, and meanwhile, the whole height of the spring plate group after the assembly is not higher than the top surface of the base, and the design is ultrathin and miniaturized and has higher adaptability.
Drawings
FIG. 1 is a schematic diagram showing the overall structure of a dynamic light diffusing device according to a preferred embodiment of the present utility model;
FIG. 2 is an exploded view of the dynamic light diffusing device according to the preferred embodiment of the present utility model;
FIG. 3 is a schematic diagram showing the overall structure of a first spring plate of the dynamic light diffusing device according to the preferred embodiment of the present utility model;
FIG. 4 is a schematic diagram showing the overall structure of a second spring plate of the dynamic light diffusing device according to the preferred embodiment of the present utility model;
FIG. 5 is a schematic diagram showing the assembled states of the first elastic piece, the second elastic piece, the first driving magnet and the second driving magnet of the dynamic light diffusion device according to the preferred embodiment of the present utility model;
FIG. 6 is a schematic diagram showing the assembled states of the base, the circuit board, the first driving package and the second driving package of the dynamic light diffusing device according to the preferred embodiment of the present utility model;
FIG. 7 is a schematic diagram of an embodiment of a dynamic light diffusing device in X-direction and Y-direction;
FIG. 8 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 7.
In the figure:
1. a base; 11. a limit protrusion;
2. an optical diffusion sheet;
3. a spring assembly; 31. a first elastic sheet; 311. a first elastic arm; 3111. a first fixed end;
3112. a first free end; 312. a first mounting portion; 313. a first gap; 314. a first reinforcing bar;
315. a first adjustment port; 32. a second spring plate; 321. a second elastic arm; 3211. a second fixed end;
3212. a second free end; 322. a second mounting portion; 323. a second gap; 324. a second reinforcing bar;
325. a mounting hole; 326. a limit part; 327. a second adjustment port; 33. a fastener;
4. a drive assembly; 41. a first drive magnet; 42. a second drive magnet; 43. a first drive package; 44. a second drive package;
5. a circuit board; 51. and a limiting hole.
Detailed Description
In order to facilitate understanding of the present utility model, the following description will further explain the technical scheme and advantages of the present utility model in detail with reference to the drawings and embodiments. The specific structure and features of the present utility model are described below by way of example and should not be construed to limit the utility model in any way. Also, any feature mentioned (including implicit or explicit) below, as well as any feature shown directly or implicit in the drawings, may be continued to be any combination or deletion of such features among themselves, to form still other embodiments that may not be directly or indirectly mentioned in the present utility model. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present utility model, unless otherwise indicated, the terms "relative," "above," and the like refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the description of the present utility model, unless otherwise indicated, terms of orientation or positional relationship are based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.
As shown in fig. 1-8, the present utility model provides a dynamic light diffusing device, which comprises a base 1, an optical diffusion sheet 2, a spring plate assembly 3 and a driving assembly 4, wherein the optical diffusion sheet 2, the spring plate assembly 3 and the driving assembly 4 are installed on the base 1; the elastic sheet component 3 is used for installing the optical diffusion sheet 2; the spring plate assembly 3 comprises a first spring plate 31 and a second spring plate 32 which are connected in a stacked manner; the first elastic piece 31 is fixed on the base 1, and the second elastic piece 32 is fixed on the first elastic piece 31; the first elastic sheet 31 and the second elastic sheet 32 are respectively deformed in the X direction and the Y direction under the driving of the driving component 4 so as to drive the optical diffusion sheet 2 to perform the reciprocating motion in the X direction and the Y direction; the driving assembly 4 includes a first driving magnet 41 and a second driving magnet 42 respectively connected to the first elastic sheet 31 and the second elastic sheet 32, and a first driving wire package 43 and a second driving wire package 44 disposed on the base 1; the first driving magnet 41 and the second driving magnet 42 are respectively disposed above the first driving coil 43 and the second driving coil 44. The design basis of the utility model is left-hand rule, and the specific principle thereof is not repeated here.
In this embodiment, the X direction and the Y direction may be directions perpendicular to each other, and the light incident direction is a direction perpendicular to the plane where the first elastic sheet and the second elastic sheet are located; in other embodiments, the X direction and the Y direction may be directions at any angle to each other, and the present utility model is not limited thereto.
The motion of the optical diffusion sheet in the X direction and the Y direction can be mutually independent, can move simultaneously or independently, and can flexibly set one or two groups of corresponding driving coils and driving magnets in the X direction and the Y direction according to requirements, and the generated force can independently control the motion of the optical diffusion sheet in the X direction and the Y direction.
Further refinement, the first driving magnet and the second driving magnet are quadrupole magnets or two small magnets with positive and negative polarities.
Preferably, the first elastic piece 31 is fixed to the base 1 by a first elastic arm 311; the first elastic arm 311 includes a first fixed end 3111 and a first free end 3112; the first free end 3112 is formed by bending and extending the first elastic sheet 31, and the first fixed end 3111 is mounted on the base 1 through a fastener 33; a first gap 313 exists between the part of the first elastic arm 311 located between the first fixed end 3111 and the first free end 3112 and the main body of the first elastic piece 31; the first spring plate 31 is provided with first mounting portions 312 for fixing the first driving magnet 41 on both sides along the deformation direction of the first elastic arm 311.
In order to further improve the stability of the operation of the optical diffusion sheet, preferably, the second elastic sheet 32 is fixed inside the first elastic sheet 31 by a second elastic arm 321; the second elastic arm 321 includes a second fixed end 3211 and a second free end 3212; the second free end 3212 is formed by bending and extending a second elastic sheet 32, and the second fixed end 3211 is connected with the first elastic sheet 31; a second gap 323 exists between the part of the second elastic arm 321 located between the second fixed end 3211 and the second free end 3212 and the main body of the second elastic sheet 32; the second spring plate 32 is provided with second mounting portions 322 for fixing the second driving magnet 42 on both sides along the deformation direction of the second elastic arm 321.
In the embodiment, the second elastic piece is arranged in the first elastic piece, and the first elastic piece, the first elastic arm, the second elastic piece and the second elastic arm are integrally designed, so that the action stability of the elastic piece group is improved, the speckle eliminating quality of the optical diffusion sheet is improved, and meanwhile, the cost is effectively reduced; in addition, by improving the structures of the first elastic arm and the second elastic arm, the deformation effect of the elastic sheet is better under the same magnetic field condition; the opposite sides of the first elastic sheet and the second elastic sheet are used as elastic arms for action, and are matched with driving components which are arranged oppositely, so that balanced stress of the optical diffusion sheet and stable action in the X direction and the Y direction are ensured, and the action stability is further improved.
In this embodiment, the first elastic arm and the first elastic piece are integrally formed, and the second elastic arm and the second elastic piece are integrally formed, so that the first elastic piece and the second elastic piece have higher structural strength and more stable action.
Specifically, the second elastic piece 32 is connected to the first elastic piece 31 by laser welding or dispensing.
Preferably, the edge of the first elastic sheet 31 and/or the second elastic sheet 32 is bent to form a first reinforcing strip 314 and/or a second reinforcing strip 324; the first reinforcing bar 314 and/or the second reinforcing bar 324 are respectively located above the first gap 313/the second gap 323.
In this embodiment, the first elastic arm and the second elastic arm are formed by bending the first elastic piece and the second elastic piece, so that the first fixed end of the first elastic arm is fixed with the base, the first free end and the first elastic piece are integrally formed, and meanwhile, a first gap exists between the first fixed end and the first free end and the first elastic piece main body; the second fixed end of the second elastic arm is fixed with the first elastic piece, the second free end and the second elastic piece are integrally formed, and meanwhile, a second gap exists between the second fixed end and the second free end and the second elastic piece main body; the corresponding gap is also provided with a reinforcing strip in a bending way, so that the plane bearing force of the first elastic piece and the second elastic piece can be greatly improved by the design, the deformation effect is good, and the action linearity and stability of the elastic piece group are further improved.
Preferably, the second spring plate 32 is provided with a mounting hole 325 for mounting the optical diffusion sheet 2, and the optical diffusion sheet 2 is mounted in the mounting hole 325 in an interference manner. Further preferably, the periphery of the mounting hole 325 is respectively provided with a limiting portion 326 for fixing the optical diffusion sheet 2. In this embodiment, install the interference of optical diffusion piece in the mounting hole of second shell fragment, and set up spacing portion and interior bending portion collocation, both can fix a position drive magnet and optical diffusion piece respectively, can improve the interference factor of magnetic field and shell fragment group of drive magnet again, design benefit still is favorable to improving the area utilization of optical diffusion piece, weakens the coherence of laser better, realizes better resolving the speckle effect.
Preferably, two first driving wire packages 43 and two second driving wire packages 44 are respectively arranged on the base 1 along the X direction and the Y direction; the first elastic sheet 31 and the second elastic sheet 32 are respectively provided with two first driving magnets 41 and second driving magnets 42 corresponding to the first driving wire package 43 and the second driving wire package 44. The motion of the optical diffusion sheet in the X direction and the Y direction can be mutually independent, can move simultaneously or independently, and can be flexibly provided with one or two groups of corresponding driving coils and driving magnets in the X direction and the Y direction according to requirements, and the generated force can independently control the motion of the optical diffusion sheet in the X direction and the Y direction, so that the motion stability of the elastic sheet group is improved, and the speckle eliminating quality of the optical diffusion sheet is improved.
As shown in fig. 3 to 4, preferably, a first adjusting opening 315 for adjusting the deformation amount of the first elastic arm 311 is provided on the first elastic piece 31 near the first free end 3112 of the first elastic arm 311; the second elastic piece 32 is provided with a second adjusting opening 327 near the second free end 3212 of the second elastic arm 321 for adjusting the deformation amount of the second elastic arm 321. In this embodiment, the first adjusting opening 315 and the second adjusting opening 327 are both disposed at the connection portion between the elastic arm and the elastic piece. The deformation degree of the elastic arm is adjusted by arranging the adjusting notch, so that the component can be simplified, and the structure is simpler.
Preferably, two first elastic arms 311 are respectively disposed on the first elastic piece 31; two second elastic arms 321 are disposed on the second elastic piece 32 respectively. In this embodiment, the first elastic piece is driven by the corresponding first driving magnet, and the first elastic arm deforms along the Y direction, so as to control the optical diffusion sheet to reciprocate in the Y direction; the second elastic piece is driven by the corresponding second driving magnet, and the second elastic arm deforms along the X direction, so that the optical diffusion piece is controlled to reciprocate along the X direction.
In this process, the two first elastic arms 311 of the first elastic piece 31 are disposed at two opposite sides of the first elastic piece 31 along the motion direction thereof, the two second elastic arms 321 of the second elastic piece 32 are disposed at two opposite sides of the second elastic piece 32 along the motion direction thereof, and the two first driving magnets and the two second driving magnets are respectively matched with the two first driving magnets and the two second driving magnets, which are connected with the two first driving magnets and drive the two first driving magnets to move, so as to ensure balanced stress of the optical diffusion piece and stable movement in the X direction and the Y direction.
As shown in fig. 6, the base 1 is preferably further provided with a circuit board 5 electrically connected to the first driving wire package 43 and the second driving wire package 44; at least two limit protrusions 11 are arranged on the base 1, and limit holes 51 matched with the limit protrusions 11 are formed in the circuit board 5; the circuit board 5 is arranged on the base 1 through the matching of the limiting hole 51 and the limiting protrusion 11; the first driving wire package 43 and the second driving wire package 44 are sleeved on the limiting protrusion 11 and are located above the circuit board 5. In this embodiment, the circuit board is FPC flexible circuit board, and drive coil and FPC circuit board cover are established simultaneously on same spacing arch, and the convenient arrangement simplifies the setting form, and the while structure is compacter.
As shown in fig. 5-6, the utility model has simple structure, the whole structure can be divided into two parts of the spring plate group, the driving magnet group and the base and the driving coil group, and then the spring plate group, the driving magnet group and the base are mutually embedded, the process is simple, the manufacturing cost is greatly reduced, and meanwhile, the whole height of the spring plate group after the assembly is not higher than the top surface of the base, and the utility model has ultrathin and miniaturized design and higher adaptability.
The base and the circuit board are provided with light transmission openings corresponding to the mounting holes.
The utility model also provides a projector comprising the dynamic light diffusion device. The projector has all the beneficial effects of the dynamic diffusion device, and the projector also comprises other components meeting the functions of the projection equipment, and the redundant description is omitted here.
The above-described embodiments are only preferred embodiments of the present utility model and should not be construed as limiting the scope of the utility model, it will be appreciated by those skilled in the art that numerous changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (10)
1. The dynamic light diffusion device is characterized by comprising a base, an optical diffusion sheet, a spring piece assembly and a driving assembly, wherein the optical diffusion sheet, the spring piece assembly and the driving assembly are arranged on the base; the elastic sheet component is used for installing the optical diffusion sheet; the spring plate assembly comprises a first spring plate and a second spring plate which are connected in a laminated mode; the first elastic sheet is fixed on the base, and the second elastic sheet is fixed on the first elastic sheet; the first elastic sheet and the second elastic sheet drive the optical diffusion sheet to do reciprocating motion in the X direction or the Y direction under the drive of the driving component respectively; the driving assembly comprises a first driving magnet, a second driving magnet and a first driving wire package and a second driving wire package which are respectively connected with the first elastic sheet and the second elastic sheet, and the first driving wire package and the second driving wire package are arranged on the base; the first driving magnet and the second driving magnet are respectively and correspondingly arranged above the first driving wire package and the second driving wire package.
2. The dynamic light diffusing device of claim 1, wherein said first spring is secured to said base by a first spring arm; the first elastic arm comprises a first fixed end and a first free end; the first free end is formed by bending and extending the first elastic sheet, and the first fixed end is arranged on the base through a fastener; a first gap exists between the part of the first elastic arm, which is positioned between the first fixed end and the first free end, and the first elastic sheet main body; and first mounting parts for fixing the first driving magnet are arranged on the first elastic piece along the two sides of the deformation direction of the first elastic arm.
3. The dynamic light diffusing device of claim 2, wherein said second spring is secured inside said first spring by a second spring arm; the second elastic arm comprises a second fixed end and a second free end; the second free end is formed by bending and extending a second elastic sheet, and the second fixed end is connected with the first elastic sheet; a second gap exists between the part of the second elastic arm positioned between the second fixed end and the second free end and the second elastic sheet main body; and second mounting parts for fixing the second driving magnet are arranged on the second elastic piece along the two sides of the deformation direction of the second elastic arm.
4. The dynamic light diffusing device according to claim 3, wherein the edge of the first elastic sheet and/or the second elastic sheet is bent and provided with a first reinforcing strip and/or a second reinforcing strip; the first reinforcing strip and/or the second reinforcing strip are/is correspondingly positioned above the first gap/the second gap respectively.
5. The dynamic light diffusing device of claim 4, wherein said second spring is provided with a mounting hole for mounting said optical diffuser, said optical diffuser being interference fit within said mounting hole.
6. The dynamic light diffusing device of claim 5, wherein limiting portions for fixing said optical diffusion sheet are respectively bent around said mounting holes.
7. The dynamic light diffusing device of claim 5, wherein two of said first drive packages and second drive packages are respectively disposed on said base along X-direction and Y-direction; the first elastic sheet and the second elastic sheet are respectively provided with a first driving magnet and a second driving magnet which correspond to the first driving wire package and the second driving wire package.
8. The dynamic light diffusing device of claim 7, wherein said first spring plates are respectively provided with two said first elastic arms; two second elastic arms are oppositely arranged on the second elastic sheet respectively.
9. The dynamic light diffusing device of claim 8, wherein said base further comprises a circuit board electrically connected to the first drive package and the second drive package; the base is provided with at least two limit protrusions, and the circuit board is provided with limit holes matched with the limit protrusions; the circuit board is arranged on the base through the matching of the limiting hole and the limiting protrusion; the first driving wire package and the second driving wire package are sleeved on the corresponding limiting protrusions and are located above the circuit board.
10. A projector comprising a dynamic light diffusing device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175970.6U CN219916154U (en) | 2023-05-15 | 2023-05-15 | Dynamic light diffusion device and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321175970.6U CN219916154U (en) | 2023-05-15 | 2023-05-15 | Dynamic light diffusion device and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219916154U true CN219916154U (en) | 2023-10-27 |
Family
ID=88441128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321175970.6U Active CN219916154U (en) | 2023-05-15 | 2023-05-15 | Dynamic light diffusion device and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219916154U (en) |
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2023
- 2023-05-15 CN CN202321175970.6U patent/CN219916154U/en active Active
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