CN209446884U - Vibrate optical module and projector - Google Patents
Vibrate optical module and projector Download PDFInfo
- Publication number
- CN209446884U CN209446884U CN201920251030.8U CN201920251030U CN209446884U CN 209446884 U CN209446884 U CN 209446884U CN 201920251030 U CN201920251030 U CN 201920251030U CN 209446884 U CN209446884 U CN 209446884U
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- framework
- pedestal
- optical module
- rotating shaft
- frame portion
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Abstract
A kind of vibration optical module, including pedestal, the first framework, optical element and actuating assembly.First framework has an at least first rotating shaft portion.First framework is at least connected to pedestal by an at least first rotating shaft portion.Optical element is configured in the first framework.Actuating assembly is configured at pedestal.The young's modulus of the material of pedestal is greater than the young's modulus of at least material in a first rotating shaft portion, and actuating assembly drives the first framework to drive optical element relative to pedestal in vibrating back and forth in an angle by at least flexible deformation in a first rotating shaft portion.Vibration optical module provided by the utility model can save configuration space.The utility model also provides a kind of projector with this vibration optical module.The vibration optical module of the projector provided by the utility model can save configuration space.
Description
Technical field
The utility model relates to a kind of optical module and projector, and in particular to a kind of vibration optical module
And the projector with this vibration optical module.
Background technique
Projection arrangement is a kind of display device to generate large scale picture.The image-forming principle of projection arrangement is by light
Illuminating bundle caused by light source is converted into image strip by valve, then image strip is projected screen or metope by camera lens
On.
In present product, the resolution ratio for the image that light valve is converted out does not meet the market demand gradually.In order into
One step increases image resolution, high-resolution light valve can be used in projection arrangement, but will lead to projection arrangement and involve great expense
The problem of.In addition, in some projection arrangements the optical module with vibration of optical technology can be configured, additionally further to mention
Rise the resolution ratio that light valve converts out image.The optical module generally comprises pedestal and is set to the intracorporal framework of seat, framework
To carry translucent element or reflecting element and can be vibrated by driving, make the image strip by translucent element or reflecting element
It vibrates whereby and achievees the effect that promote image resolution.
In the optical module, pedestal is generally plastic parts and need to have enough thickness to provide structural strength, and
Pedestal is generally combined by the mode of screw lock (mode of male and female screw thread locking) with framework, this also makes pedestal or framework need to have
There is enough thickness for screw lock.However, the space that the optical module is arranged is limited for miniature projection arrangement,
The thickness that optical module need to be reduced can just be used for the projection arrangement of micro- shape.In addition, if in order to upgrade block body and framework knot
Structure intensity and pedestal and framework are made with metal, then when framework is vibrated relative to pedestal, the junction of pedestal and framework
Metal material can generate excessive noise.
" background technique " paragraph is used only to help to understand the content of the present invention, therefore is taken off in " background technique " paragraph
The content of dew may include some known technologies without constituting road known to those skilled in the art.In " background technique " paragraph institute
The content of exposure does not represent the content or the utility model one or more embodiment problem to be solved, practical at this
It has been readily known to those persons skilled in the art or has recognized before novel application.
Utility model content
The utility model provides a kind of vibration optical module, can save configuration space.
The utility model provides a kind of projector, and vibration optical module can save configuration space.
The other objects and advantages of the utility model can be obtained from the technical characteristic disclosed by the utility model into one
The understanding of step.
It is to propose one kind up to one of above-mentioned or part or all of purpose or other purposes, an embodiment of the utility model
Vibrate optical module, including a pedestal, one first framework, an optical element and an actuating assembly.First framework has at least one
First rotating shaft portion.First framework is at least connected to pedestal by an at least first rotating shaft portion.Optical element is configured at the first frame
In vivo.Actuating assembly is configured at pedestal.The young's modulus of the material of pedestal is greater than the Young of at least material in a first rotating shaft portion
Coefficient, actuating assembly drive the first framework to drive optical element relative to seat by at least flexible deformation in a first rotating shaft portion
Body in vibrating back and forth in an angle.
It is to propose one kind up to one of above-mentioned or part or all of purpose or other purposes, an embodiment of the utility model
Projector, including a light source, a light valve, a projection lens and a vibration optical module.Light source is for providing an illuminating bundle.Light
Valve is an image strip for converted illumination light beam.Projection lens is for projecting image strip.Vibration optical module is configured at light
Between valve and projection lens and including a pedestal, one first framework, an optical element and an actuating assembly.First framework has extremely
A few first rotating shaft portion.First framework is at least connected to pedestal by an at least first rotating shaft portion.Optical element is configured at
In one framework.Actuating assembly is configured at pedestal.The young's modulus of the material of pedestal is greater than at least material in a first rotating shaft portion
Young's modulus, actuating assembly drive the first framework to drive optical element opposite by at least flexible deformation in a first rotating shaft portion
In pedestal in being vibrated back and forth in an angle.
Based on above-mentioned, the embodiments of the present invention at least have effects that following one of advantage or.It is practical new at this
In the vibration optical module of type, since pedestal uses the material with larger young's modulus, therefore it can be with relatively small thickness
In the case of enough structural strengths are provided, with achieve the effect that save configuration space.Also, the shaft of framework use have compared with
The material of small young's modulus, and can avoid shaft and generate excessive noise when framework is vibrated.
In order to make the above-mentioned features and advantages of the utility model more obvious and understandable, special embodiment below, and cooperate attached drawing
It is described in detail below.
Detailed description of the invention
Fig. 1 is the schematic diagram of the projector of an embodiment of the present invention.
Fig. 2 is the perspective view of the vibration optical module of Fig. 1.
Fig. 3 is the exploded view of the vibration optical module of Fig. 2.
Fig. 4 is the partial component top view of the vibration optical module of Fig. 2.
Fig. 5 is the perspective view of the vibration optical module of another embodiment of the utility model.
Specific embodiment
In relation to addressing other technologies content, feature and effect before the utility model, in following cooperation with reference to one of attached drawing
In the detailed description of preferred embodiment, can clearly it present.The direction term being previously mentioned in following embodiment, such as: upper,
Under, it is left and right, front or rear etc., be only the direction with reference to attached drawing.Therefore, the direction term used is for illustrating not to be used to limit
The utility model processed.
Fig. 1 is the schematic diagram of the projector of an embodiment of the present invention.Referring to FIG. 1, the projector 50 of the present embodiment
Including a light source 52, a light valve 54, a projection lens 56 and a vibration optical module 100.Light source 52 is for providing an illumination light
Beam L1.Light valve 54 is, for example, digital micromirror elements (digital micro-mirror device, DMD) and is used for converted illumination
Light beam L1 is an image strip L2.Projection lens 56 is outer to form projected picture to projector 100 for projecting image strip L2.
Vibration optical module 100 is configured between light valve 54 and projection lens 56, the image strip converted out to promote light valve 54
The resolution ratio of L2.
Fig. 2 is the perspective view of the vibration optical module of Fig. 1.Fig. 3 is the exploded view of the vibration optical module of Fig. 2.Fig. 4 is figure
The partial component top view of 2 vibration optical module.Fig. 2 to Fig. 4 is please referred to, the vibration optical module 100 of the present embodiment includes
One pedestal 110, one first framework 120, a second framework 130, an optical element 140 and an actuating assembly 150.First framework
120 have an at least first rotating shaft portion 120a (being schematically shown as two), and second framework 130 has at least one second shaft 130a
(being schematically shown as two).Second framework 130 is configured in pedestal 110 and is at least connected to pedestal by each second shaft 130a
110.First framework 120 is configured in second framework 130 and is connected to second framework 130 by each first rotating shaft portion 120a,
Also that is, the first framework 120 at least borrows each second shaft of its each first rotating shaft portion 120a, second framework 130 and second framework 130
Portion 130a and be connected to pedestal 110.In the present embodiment, there are two along the of pivot center A1 configuration for the first framework 120 tool
One shaft 120a, by two first rotating shaft portion 120a, the first framework 120 can be with (the i.e. first rotating shaft portion pivot center A1
The axial direction of 120a) it is that shaft is rotated relative to second framework 130 and pedestal 110；There are two pivot center A2 for the tool of second framework 130
Second shaft 130a of configuration, by two the second shaft 130a, second framework 130 can be with pivot center A2 (i.e. second
The axial direction of shaft 130a) it is that shaft is rotated relative to pedestal 110.Optical element 140 is, for example, translucent element or reflecting element
And it is configured in the first framework 120.In the present embodiment, optical element 140 is a translucent element, to allow from light valve 54
Image strip L2 passes through.
Actuating assembly 150 is configured in pedestal 110, to drive the first framework 120 and second framework 130 to vibrate.In detail
For, actuating assembly 150 may include that at least one first magnet 152 (being schematically shown as two), an at least first coil 154 (are schematically shown as
Two), at least one second magnet 156 (being schematically shown as two) and at least one second coil 158 (being schematically shown as two).First magnet
152 are configured at the first framework 120, and first coil 154 is configured at second framework 130 and to positioned at the first magnet 152, the second magnet
156 are configured at second framework 130, and the second coil 158 is configured at pedestal 110 and to positioned at the second magnet 156.Each first magnet
It can produce magnetic force between 152 and corresponding first coil 154, driven with the flexible deformation by each first rotating shaft portion 120a
One framework 120 drive optical element 140 relative to second framework 130 and pedestal 110 along pivot center A1 in an angle back and forth
Vibration.It can produce magnetic force between each second magnet 156 and corresponding second coil 158, by each second shaft 130a's
Flexible deformation and drive second framework 120 drive optical element 140 relative to pedestal 110 along the rotation perpendicular to pivot center A1
Axis A2 in vibrating back and forth in an angle.Whereby, it can reach the resolution ratio for promoting the image strip L2 by optical element 140
Effect.
In the present embodiment, the Young of material of the young's modulus of the material of pedestal 110 greater than each first rotating shaft portion 120a
The young's modulus of the material of coefficient and each second shaft 130a.Whereby, pedestal 110 can borrow its biggish young's modulus and have
Enough structural strengths are provided in the case where having relatively small thickness, to achieve the effect that save configuration space.Also, the first framework
120 each first rotating shaft portion 120a and each second shaft 130a of second framework 130 can borrow its smaller young's modulus and the
One framework 120 and second framework 130 avoid generating excessive noise when vibrating.
In the present embodiment, the material of pedestal 110 is, for example, metal, can be chromium plating steel plate (SECC), stainless steel plate
(SUS) etc. the die casting metalloid such as sheet metals metalloid or aluminium alloy (ADC12), allumen (ZnAl) and there is relatively small thickness.This
Outside, the first framework of part 120 and its material of each first rotating shaft portion 120a are, for example, polycarbonate (PC), polyetherimide
(PEI), the plastic materials such as polyether-ether-ketone (PEEK).Second framework 130 and its material of each second shaft 130a are also, for example,
The plastic materials such as polycarbonate (PC), polyetherimide (PEI), polyether-ether-ketone (PEEK).In other embodiments, above-mentioned component
It can be other appropriate materials, the utility model limits not to this.
In the present embodiment, vibration optical module 100 further includes an at least connection structure 160 (being schematically shown as two).Each
The material of two shaft 130a is identical to the material of corresponding connection structure 160, and each second shaft 130a is in one piece
It is connected to corresponding connection structure 160.Each connection structure 160 is such as by embedment injection, ultrasonic fusing, hot melt or gluing
Mode and be configured on pedestal 110 in one piece.
On the other hand, first framework 120 of the present embodiment includes one first frame portion 122 and one second frame portion 124, the first frame
Portion 122 is connected with the second frame portion 124 and jointly around optical element 140, to support simultaneously fixing optical element 140.Each
The material of one shaft 120a is identical to the material of the first frame portion 122, and each first rotating shaft portion 120a is formed in one piece
First frame portion 122.The young's modulus of the material of second frame portion 124 is greater than the first frame portion 122 and the material of each first rotating shaft portion 120a
The young's modulus of matter, so as to make the first framework 120 have preferable structural strength by the second frame portion 124.First frame portion 122
Material is, for example, the plastic materials such as polycarbonate (PC), polyetherimide (PEI), polyether-ether-ketone (PEEK).Second frame portion 124 can
It is isobaric for the sheet metals metalloids such as chromium plating steel plate (SECC), stainless steel plate (SUS) or aluminium alloy (ADC12), allumen (ZnAl)
It casts metalloid and there is relatively small thickness, to achieve the effect that reduce the first framework 120 along the thickness of axial A2.More specifically,
First frame portion 122 includes two opposite the first side wall 122a, and the second frame portion 124 includes opposite two second sidewalls 124a, and each
One side wall 122a is for example connected to two the in one piece by the modes such as embedment injection, ultrasonic fusing, hot melt or gluing
Between two side wall 124a.Two the first side wall 122a and two second sidewall 124a are around the accommodation space for going out rectangle, to accommodate example
The for example optical element 140 of rectangle.In other embodiments, the first framework 120 and optical element 140 can be other appropriate shapes
Shape, the utility model limit not to this.In the present embodiment, one end of two first rotating shaft portion 120a is connected to
Two the first side wall 122a of one frame portion 122, the other end are connected to second framework 130；The one of two the second shaft 130a
End is connected to two opposite side wall (not labeled) of second framework 130, and the other end is connected to two connection knots
Structure 160.
In the present embodiment, each first frame portion 122a, each first rotating shaft portion 120a, second framework 130, each second shaft
130a and each connection structure 160 can be same material (such as identical plastic cement material), and each second frame portion 124a and pedestal 110 can be
Same material (such as identical metal material), and the plastic cement material and the metal material project by above-mentioned embedment, are super
The modes such as sound wave welding, hot melt or gluing and combine so that pedestal 110, the first framework 120 and second framework 130 become one
Complete structure.To which the first framework 120 and second framework 130 are to be connected to pedestal 110 in a manner of non-screw lock, so then
First framework 120, second framework 130 and pedestal 110 are not required to be configured to have larger to provide enough screw lock thickness
Volume.
Fig. 5 is the perspective view of the vibration optical module of another embodiment of the utility model.Vibration optical mode shown in Fig. 5
In block 200, pedestal 210, the first framework 220, first rotating shaft portion 220a, optical element 240, the first magnet 252, first coil
254, the pedestal 110 of the configuration of connection structure 260 Fig. 2 to Fig. 4 similar with the mode of action, the first framework 120, first rotating shaft portion
The configuration and the mode of action of 120a, optical element 140, the first magnet 152, first coil 154, connection structure 160, no longer in this
It repeats.Vibration optical module 200 does not have vibration light with being different in for optical module 100, vibration optical module 200 is vibrated
The second framework 130 and its second shaft 130a of module 100 are learned, also that is, vibration optical module 200 is the shape of uniaxial vibration
Formula, it is non-as vibration optical module 100 is the form of dual-axis vibration.Correspondingly, vibration optical module 200 does not have vibration optics
The second magnet 156 and the second coil 158 of module 100.
The material of each first rotating shaft portion 220a of first framework 220 is for example identical to the material of corresponding connection structure 260
(such as identical plastic cement material), each first rotating shaft portion 220a is directly connected in corresponding connection structure 260 in one piece.As
As the connection structure 160 for vibrating optical module 100, the connection structure 260 of the present embodiment is for example projected by embedment, ultrasonic wave is molten
Connect, heat or the modes such as gluing and be connected to pedestal 210 (for example, metal material) in one piece, thus pedestal 210 and
Structure that one framework 220 is one of the forming and be connected in a manner of non-screw lock.In addition, first framework 220 of the present embodiment
Whole is for example all same material (such as plastic cement), rather than comprising being respectively as the first framework 120 of vibration optical module 100
The first frame portion 122 and the second frame portion 124, right the utility model of unlike material limit not to this.
In conclusion the embodiments of the present invention at least have effects that following one of advantage or.It is practical new at this
In the vibration optical module of type, since pedestal or pedestal and part framework use the material with larger young's modulus, therefore it can
Enough structural strengths are provided, with relatively small thickness to achieve the effect that save configuration space.Also, framework
Shaft uses the material with smaller young's modulus, and can avoid shaft and generate excessive noise when framework is vibrated.Again
Person, pedestal and framework are connected in one piece rather than are connected in a manner of screw lock, so then pedestal and framework be not required in order to
Enough screw lock thickness is provided and is configured to have larger volume.
Only as described above, the only preferred embodiment of the utility model, when the utility model cannot be limited with this
The range of implementation, i.e., all simple equivalence changes made according to the utility model claims book and utility model content with repair
Change, all still belongs in the range that the utility model patent covers.In addition any embodiment or claim of the utility model are not necessary to
Reach the disclosed whole purpose of the utility model or advantage or feature.In addition, abstract and utility model title be intended merely to it is auxiliary
It helps patent document retrieval to be used, not is used to limit the interest field of the utility model.In addition, this specification or claims
In refer to " first ", the terms such as " second " are only to name the title or the different embodiments of difference or model of element (element)
It encloses, and is not used to the quantitative upper limit of restriction element or lower limit.
Description of symbols:
50: projector
52: light source
54: light valve
56: projection lens
100,200: vibration optical module
110,210: pedestal
120,220: the first framework
120a, 220a: first rotating shaft portion
122: the first frame portions
122a: the first side wall
124: the second frame portions
124a: second sidewall
130: second framework
130a: the second shaft
140,240: optical element
150: actuating assembly
152,252: the first magnet
154,254: first coil
156: the second magnet
158: the second coils
160,260: connection structure
A1, A2: pivot center
L1: illuminating bundle
L2: image strip.
Claims (20)
1. a kind of vibration optical module, which is characterized in that the vibration optical module includes pedestal, the first framework, optical element
And actuating assembly, in which:
First framework has an at least first rotating shaft portion, wherein first framework is at least by described at least one first turn
Axle portion and be connected to the pedestal；
The optical element is configured in first framework；And
The actuating assembly is configured at the pedestal；
Wherein the young's modulus of the material of the pedestal is greater than the young's modulus of at least material in a first rotating shaft portion, described
Actuating assembly drives first framework to drive the optical element by at least flexible deformation in a first rotating shaft portion
Relative to the pedestal in being vibrated back and forth in an angle.
2. vibration optical module according to claim 1, which is characterized in that the vibration optical module further includes the second frame
Body, wherein first framework is configured in the second framework and is connected to by an at least first rotating shaft portion described
Second framework, the second framework have at least one second shaft, and the second framework is at least by described at least one second
Shaft and be connected to the pedestal, the actuating assembly drives institute by at least flexible deformation of one second shaft
Stating second framework drives the optical element relative to the pedestal in vibrating back and forth in an angle, the poplar of the material of the pedestal
Family name's coefficient is greater than the young's modulus of at least material of one second shaft.
3. vibration optical module according to claim 2, which is characterized in that the vibration optical module further includes at least one
Connection structure, wherein an at least connection structure is configured on the pedestal, at least one second shaft is connected to institute
An at least connection structure is stated, the material of at least one second shaft is identical to the material of an at least connection structure.
4. vibration optical module according to claim 2, which is characterized in that the pedestal, first framework and described
Second framework is one of the forming.
5. vibration optical module according to claim 2, which is characterized in that the second framework is connected in a manner of non-screw lock
It is connected to the pedestal.
6. vibration optical module according to claim 1, which is characterized in that the vibration optical module further includes at least one
Connection structure, wherein an at least connection structure is configured on the pedestal, an at least first rotating shaft portion is connected to institute
An at least connection structure is stated, the material in an at least first rotating shaft portion is identical to the material of an at least connection structure.
7. vibration optical module according to claim 1, which is characterized in that the pedestal and first framework are integrated
Forming.
8. vibration optical module according to claim 1, which is characterized in that first framework is connected in a manner of non-screw lock
It is connected to the pedestal.
9. vibration optical module according to claim 1, which is characterized in that first framework includes the first frame portion and the
Two frame portions, first frame portion are connected with second frame portion and jointly around the optical elements, and described at least one first
Shaft is formed in first frame portion, and the material in an at least first rotating shaft portion is identical to the material of first frame portion,
The young's modulus of the material of second frame portion is greater than the poplar of first frame portion and at least material in a first rotating shaft portion
Family name's coefficient.
10. vibration optical module according to claim 9, which is characterized in that first frame portion includes opposite two
One side wall, second frame portion include two opposite second sidewalls, and each two the first side wall is connected to two second sidewall
Between.
11. a kind of projector, which is characterized in that the projector includes light source, light valve, projection lens and vibration optical mode
Block, in which:
The light source is for providing illuminating bundle；
The light valve is for converting the illuminating bundle as image strip；
The projection lens is for projecting the image strip；And
The vibration optical module is configured between the light valve and the projection lens and including pedestal, the first framework, optics
Element and actuating assembly, in which:
First framework has an at least first rotating shaft portion, wherein first framework is at least by described at least one first turn
Axle portion and be connected to the pedestal；
The optical element is configured in first framework；And
The actuating assembly is configured at the pedestal；
Wherein the young's modulus of the material of the pedestal is greater than the young's modulus of at least material in a first rotating shaft portion, described
Actuating assembly drives first framework to drive the optical element by at least flexible deformation in a first rotating shaft portion
Relative to the pedestal in being vibrated back and forth in an angle.
12. projector according to claim 11, which is characterized in that the vibration optical module further includes second framework,
First framework is configured in the second framework and is connected to second frame by an at least first rotating shaft portion
Body, the second framework have at least one second shaft, and the second framework is at least by least one second shaft
And it is connected to the pedestal, the actuating assembly drives described second by at least flexible deformation of one second shaft
Framework drives the optical element relative to the pedestal in vibrating back and forth in an angle, the young's modulus of the material of the pedestal
Greater than the young's modulus of at least material of one second shaft.
13. projector according to claim 12, which is characterized in that the vibration optical module further includes at least one connection
Structure, an at least connection structure are configured on the pedestal, and at least one second shaft is connected to described at least one
Connection structure, the material of at least one second shaft are identical to the material of an at least connection structure.
14. projector according to claim 12, which is characterized in that the pedestal, first framework and described second
Framework is one of the forming.
15. projector according to claim 12, which is characterized in that the second framework is connected in a manner of non-screw lock
The pedestal.
16. projector according to claim 11, which is characterized in that the vibration optical module further includes at least one connection
Structure, an at least connection structure are configured on the pedestal, and an at least first rotating shaft portion is connected to described at least one
Connection structure, the material in an at least first rotating shaft portion are identical to the material of an at least connection structure.
17. projector according to claim 11, which is characterized in that the pedestal and first framework are integrated into
Shape.
18. projector according to claim 11, which is characterized in that first framework is connected in a manner of non-screw lock
The pedestal.
19. projector according to claim 11, which is characterized in that first framework includes the first frame portion and the second frame
Portion, first frame portion are connected with second frame portion and jointly around the vibration optical elements, and described at least one first
Shaft is formed in first frame portion, and the material in an at least first rotating shaft portion is identical to the material of first frame portion,
The young's modulus of the material of second frame portion is greater than the poplar of first frame portion and at least material in a first rotating shaft portion
Family name's coefficient.
20. projector according to claim 19, which is characterized in that first frame portion includes two first opposite sides
Wall, second frame portion include two opposite second sidewalls, and each two the first side wall is connected between two second sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920251030.8U CN209446884U (en) | 2019-02-28 | 2019-02-28 | Vibrate optical module and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920251030.8U CN209446884U (en) | 2019-02-28 | 2019-02-28 | Vibrate optical module and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446884U true CN209446884U (en) | 2019-09-27 |
Family
ID=68033528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920251030.8U Expired - Fee Related CN209446884U (en) | 2019-02-28 | 2019-02-28 | Vibrate optical module and projector |
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| Country | Link |
|---|---|
| CN (1) | CN209446884U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612171A (en) * | 2020-12-25 | 2021-04-06 | 成都极米科技股份有限公司 | Projector and vibrating mirror assembly used in cooperation with projector |
| CN113640998A (en) * | 2020-04-27 | 2021-11-12 | 中强光电股份有限公司 | Light diffusion module and projection device |
| CN114509907A (en) * | 2020-10-29 | 2022-05-17 | 中强光电股份有限公司 | Actuating device, operating method thereof and projector |
-
2019
- 2019-02-28 CN CN201920251030.8U patent/CN209446884U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640998A (en) * | 2020-04-27 | 2021-11-12 | 中强光电股份有限公司 | Light diffusion module and projection device |
| CN113640998B (en) * | 2020-04-27 | 2024-02-06 | 中强光电股份有限公司 | Light diffusion module and projection device |
| CN114509907A (en) * | 2020-10-29 | 2022-05-17 | 中强光电股份有限公司 | Actuating device, operating method thereof and projector |
| CN112612171A (en) * | 2020-12-25 | 2021-04-06 | 成都极米科技股份有限公司 | Projector and vibrating mirror assembly used in cooperation with projector |
| CN112612171B (en) * | 2020-12-25 | 2022-04-12 | 成都极米科技股份有限公司 | Projector and vibrating mirror assembly used in cooperation with projector |
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