CN104880891A - Dustproof device of projector moving lens - Google Patents
Dustproof device of projector moving lens Download PDFInfo
- Publication number
- CN104880891A CN104880891A CN201510242183.2A CN201510242183A CN104880891A CN 104880891 A CN104880891 A CN 104880891A CN 201510242183 A CN201510242183 A CN 201510242183A CN 104880891 A CN104880891 A CN 104880891A
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- China
- Prior art keywords
- camera lens
- dustcloth
- projector
- assembly
- stay cord
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000004744 fabric Substances 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims abstract description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000013016 damping Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010985 leather Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Studio Devices (AREA)
- Projection Apparatus (AREA)
Abstract
The invention provides a dustproof device of a projector moving lens. The dustproof device comprises a lens, a projector, a dustproof cloth assembly, a pulling rope, and a rope tensioning block. The lens and the dustproof cloth assembly are installed on the projector; one end of the pulling rope is connected to the dustproof cloth assembly, wherein, opening and closing of the dustproof cloth assembly can be controlled by dragging the pulling rope, so that the lens can be conveniently taken out or to installed; and the other end of the puling rope passes through the rope tensioning block, which is used for adjusting the tightness degree of the pulling rope. According to the dustproof device, the dustproof cloth assembly is tightly adhered to the lens and the projector, respectively, for resisting dust, and automatic opening and closing of the dustproof cloth assembly is realized by components of the pulling rope and the rope tensioning block, wherein opening and closing of the dustproof cloth assembly is controlled by combination of a handle of the lens and triggering of the pulling rope. The lens, the projector and the dustproof cloth assembly are tightly adhered to one another without gaps. The lens is quite convenient to change without disassembling a box of the projector, and all actions are externally completed.
Description
Technical field
The present invention relates to a kind of dustproof construction, particularly relate to the dust guard of a kind of projector motion camera lens.
Background technology
Image is thrown into screen by camera lens by projector, for making image can project to suitable position, usually needs the position regulating projected picture; When projector places on the table, the most frequently used method is exactly the height by regulating lower margin, thus the position of change camera lens and angle realize; There has also been the method for motorized adjustment camera lens in the market, make camera lens level, vertical motion, this method is easy to adjust and image moving range is also larger, and meanwhile, projector likely configures several camera lens, and then changes according to environment for use.
Exactly because the motility of this camera lens and convertibility, current technology makes the dust-proof realization of this part especially complicated, and it is dust-proof extremely important to this optical apparatus of projector, the gap of dust from the external world from machine enters, the intensity of projected light, the heat radiation of machine can be affected, thus the quality of infringement machine, reduce service life of a machine.
The dust control technology of current motion camera lens is mainly by using sponge wrapping camera lens in camera lens surrounding, and make sponge and camera lens gapless, the other end of sponge and cabinet are also that gapless fits together, and stop entering of extraneous dust; And in camera lens surrounding use sponge wrapping camera lens existing method that blocks dust enters, when camera lens moves up and down, likely make sponge and camera lens fit not tight, producing gap allows dust enter; And, when changing camera lens, needing cabinet to take apart, at cabinet inside, camera lens and sponge being fit together again, making client operate so very inconvenient.
Summary of the invention
Technical matters to be solved by this invention needs to provide one not only to make camera lens good dustproof effect, and change the dust guard of camera lens projector's motion very easily camera lens.
To this, the invention provides the dust guard of a kind of projector motion camera lens, comprising: camera lens, projector, dustcloth assembly, stay cord and rope tensioning block; Described camera lens and dustcloth assembly are arranged in projector; One end of described stay cord is connected with dustcloth assembly, is taken out by the folding that can control dustcloth assembly that pulls of stay cord or installs camera lens to facilitate; The other end of described stay cord is through rope tensioning block, and described rope tensioning block is for regulating the degree of tightness of stay cord.
Described rope tensioning block is pull component for what regulate stay cord degree of tightness; Described dustcloth assembly is arranged on around camera lens, and is arranged in projector preferably by screw, by rope tensioning block pulling stay cord, can control the folding of dustcloth assembly, namely control the open and close of dustcloth assembly, takes out to facilitate or installs camera lens; The surface of described rope tensioning block have passed through smooth treatment, to reduce the frictional damping of stay cord.
Further improvement of the present invention is, also comprises rope sling, and one end of described stay cord is fixed on dustcloth assembly by rope sling.Described rope sling is the fixing spacing suit component for realizing bracing wire, can reinforce the stable connection between bracing wire and dustcloth assembly.
Further improvement of the present invention is, described dustcloth assembly comprises dustcloth, annulus, pedestal, hook and turning axle, described dustcloth and annulus are fixed together and are arranged on pedestal, described hook can rotate around the turning axle be fixedly installed on pedestal, and front end and the dustcloth of described hook are combined.
Described dustcloth is provided with opening, and described camera lens is arranged on the opening part of dustcloth, and namely described dustcloth is preferably provided with the annular cloth of opening, and this dustcloth is not limited to cloth material, also comprises the flexible material such as cloth or leather; Front end and the dustcloth of described hook are combined, and when hook rotates, will drive the folding of dustcloth, and then facilitate taking-up and the installation of camera lens.
Further improvement of the present invention is, described dustcloth comprises cloth hook and elastic cord; The quantity of described cloth hook is equal with the quantity of hook, and described cloth hook and hook connecting are connected together; Described elastic cord is arranged on the opening part of dustcloth, the opening of dustcloth can be made to shrink inward by elastic cord, and described hook can make the opening of dustcloth open outward by cloth hook and stay cord, and then realizes controlling the folding of dustcloth.The opening part of dustcloth is provided with elastic cord, and dustcloth and camera lens can be made to realize seamless laminating, and like this, dustcloth can stop the passage that external dust enters projector, and then ensure that dust-proof effect.
Further improvement of the present invention is, described dustcloth also comprises base ring, is provided with sponge in described base ring, and base ring is fixedly installed in projector by described annulus.Described annulus pushes down base ring, and be fixed in projector, and because be provided with sponge in base ring, by the elasticity of sponge, can allow between dustcloth and projector and further realize seamless laminating, combine with elastic cord, achieve the dust-proof setting under double action, good dustproof effect and stable.
Further improvement of the present invention is, described dustcloth and annulus are respectively provided with four through holes, and dustcloth and annulus are fixed in projector by screw by the position consistency of the through hole of described dustcloth and annulus.
Further improvement of the present invention is, described dustcloth assembly also comprises the mast for realizing stay cord guiding, and described mast is connected with pedestal.The surface of described mast preferably through smooth treatment, to reduce the frictional damping of stay cord.
Further improvement of the present invention is, described annulus and mast are fixed together respectively by screw and pedestal.Because dustcloth and annulus are natively provided with through hole, therefore, by screw, annulus and mast and pedestal are fixed together, the fixed installation that existing structure realizes between accessory can be utilized, decrease the quantity of mounting parts, reduce cost and assembly difficulty.
Further improvement of the present invention is, also comprises camera lens handle, and described camera lens handle is the lockup switch of camera lens in projector, and when upwards pulling camera lens handle, the lockup switch of described camera lens unclamps, and now can take out camera lens; Then put into camera lens, then by camera lens handle to pressing down, the lockup switch of described camera lens is lockable with the camera lens of fixing loading.
Further improvement of the present invention is, also comprises rope corner block, and described stay cord, after being connected to rope tensioning block, being connected by rope corner block and is fixed on camera lens handle.One end of stay cord is fixed on dustcloth assembly by rope sling, the other end is fixed on camera lens handle through rope corner block, described rope corner block preferably uses nut to fix, and stay cord is fixed on camera lens handle by rope sling, the up and down of such camera lens handle not only can control the locking of camera lens and open, and can also control the folding of dustcloth assembly.
Compared with prior art, further improvement of the present invention is: adopt dustcloth assembly to fit tightly with blocks dust with camera lens and projector respectively, and in order to make camera lens take out smoothly, dustcloth assembly automatic open-close can be made by components such as stay cord and rope tensioning blocks, can also realize controlling the folding of dustcloth assembly by triggering to combine with camera lens handle and stay cord, and the structure of the dustproof construction of entirety and camera switching combines together, not only make camera lens, to fit between projector and dustcloth assembly closed seamless, and it is very convenient during replacing camera lens, the cabinet of projector can be taken apart, just all actions can be completed in outside.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of an embodiment of the present invention;
Fig. 2 is the method structural representation of A in Fig. 1;
Fig. 3 is the structural representation of the dustcloth assembly of the another kind of embodiment of the present invention;
Fig. 4 is the structural representation of the dustcloth of the another kind of embodiment of the present invention;
Fig. 5 is the structural representation of another embodiment of the present invention;
Fig. 6 is the camera lens handle connecting structure schematic diagram of another embodiment of the present invention;
Fig. 7 is the structure for amplifying schematic diagram of B in Fig. 6.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present invention is described in further detail.
Embodiment 1:
As depicted in figs. 1 and 2, this example provides the dust guard of a kind of projector motion camera lens, comprising: camera lens 1, projector 2, dustcloth assembly 4, stay cord 5 and rope tensioning block 6; Described camera lens 1 and dustcloth assembly 4 are arranged in projector 2; One end of described stay cord 5 is connected with dustcloth assembly 4, is taken out by the folding that can control dustcloth assembly 4 that pulls of stay cord 5 or installs camera lens 1 to facilitate; The other end of described stay cord 5 is through rope tensioning block 6, and described rope tensioning block 6 is for regulating the degree of tightness of stay cord 5.
This example is by motor drive mode, and camera lens 1 can move with vertical direction in the horizontal direction in projector 2, meanwhile, depending on environment for use situation, is the camera lens 1 that can be replaced with other type; Described rope tensioning block 6 is the component that pulls for regulating stay cord 5 degree of tightness; Described dustcloth assembly 4 is arranged on around camera lens 1, and be arranged in projector 2 preferably by screw, by pulling of rope tensioning block 6 pairs of stay cords 5, the folding of dustcloth assembly 4 can be controlled, namely control the open and close of dustcloth assembly 4, take out to facilitate or camera lens 1 is installed; The surface of described rope tensioning block 6 have passed through smooth treatment, to reduce the frictional damping of stay cord 5.
Preferably, this example also comprises rope sling 8, and one end of described stay cord 5 is fixed on dustcloth assembly 4 by rope sling 8.Described rope sling 8 is the fixing spacing suit component for realizing bracing wire, can reinforce the stable connection between bracing wire and dustcloth assembly 4.
Embodiment 2:
As shown in Figure 3, on the basis of embodiment 1, this routine described dustcloth assembly 4 comprises dustcloth 10, annulus 11, pedestal 12, hook 13 and turning axle 14, described dustcloth 10 and annulus 11 are fixed together and are arranged on pedestal 12, described hook 13 can rotate around the turning axle 14 be fixedly installed on pedestal 12, and front end and the dustcloth 10 of described hook 13 are combined.
Described dustcloth 10 is provided with opening, and described camera lens 1 is arranged on the opening part of dustcloth 10, and namely described dustcloth 10 is preferably provided with the annulus 11 shape cloth of opening, and this dustcloth 10 is not limited to cloth material, also comprises the flexible material such as cloth or leather; Front end and the dustcloth 10 of described hook 13 are combined, and when hook 13 rotates, will drive the folding of dustcloth 10, and then facilitate taking-up and the installation of camera lens 1.
As shown in Figure 4, this routine described dustcloth 10 preferably includes cloth hook 16 and elastic cord 17; The quantity of described cloth hook 16 is equal with the quantity of hook 13, and described cloth hook 16 and hook 13 link together; Described elastic cord 17 is arranged on the opening part of dustcloth 10, the opening of dustcloth 10 can be made to shrink inward by elastic cord 17, described hook 13 can make the opening of dustcloth 10 open outward by cloth hook 16 and stay cord 5, and then realizes controlling the folding of dustcloth 10.The opening part of dustcloth 10 is provided with elastic cord 17, and dustcloth 10 and camera lens 1 can be made to realize seamless laminating, and like this, dustcloth 10 can stop the passage that external dust enters projector 2, and then ensure that dust-proof effect.
As shown in Figure 4, this routine described dustcloth 10 can also comprise base ring 18, and be provided with sponge in described base ring 18, base ring 18 is fixedly installed in projector 2 by described annulus 11.Described annulus 11 pushes down base ring 18, and be fixed in projector 2, and because be provided with sponge in base ring 18, by the elasticity of sponge, can allow between dustcloth 10 and projector 2 and further realize seamless laminating, combine with elastic cord 17, achieve the dust-proof setting under double action, good dustproof effect and stable.
This routine described dustcloth 10 and annulus 11 are preferably respectively provided with four through holes, the position consistency of the through hole of described dustcloth 10 and annulus 11, are fixed in projector 2 by screw by dustcloth 10 and annulus 11; As shown in Figure 4, this routine described dustcloth 10 is preferably sewed with elastic cord 17 and 8 cloth hooks 16, in base ring 18, is sewed with sponge; During use, cloth hook 16 and hook 13 connect together, and elastic cord 17 can make the opening of dustcloth 10 shrink inward, and hook 13 can make the outward opening of dustcloth 10 open by stay cord 5, so just can control the folding of dustcloth 10.
As shown in Figure 3, this routine described dustcloth assembly 4 preferably also comprises the mast 15 led for realizing stay cord 5, and described mast 15 is connected with pedestal 12.The surface of described mast 15 preferably through smooth treatment, to reduce the frictional damping of stay cord 5.
This routine described annulus 11 and mast 15 are fixed together respectively by screw and pedestal 12.Because dustcloth 10 and annulus 11 are natively provided with through hole, therefore, by screw, annulus 11 and mast 15 are fixed together with pedestal 12, the fixed installation that existing structure realizes between accessory can be utilized, decrease the quantity of mounting parts, reduce cost and assembly difficulty.
Embodiment 3:
As shown in Figures 5 to 7, on the basis of embodiment 1 or embodiment 2, this example also comprises camera lens handle 3, described camera lens handle 3 is the lockup switch of camera lens 1 in projector 2, when upwards pulling camera lens handle 3, the lockup switch of described camera lens 1 unclamps, and now can take out camera lens 1; Then put into camera lens 1, then by camera lens handle 3 to pressing down, the lockup switch of described camera lens 1 is lockable the camera lens 1 with fixing loading.
This routine in the vertical direction operation camera lens handle 3 can realize taking-up and the installation of camera lens 1: upwards pull camera lens handle 3, the lockup switch of camera lens 1 unclamps, and now can take out camera lens 1 with hand; When installing camera lens 1, first upwards pull camera lens handle 3, lockup switch unclamps, and puts into camera lens 1, and then is depressed by camera lens handle 3, and lockup switch is locked, and camera lens 1 is fixed.
As shown in Figure 1, Figure 2, shown in Fig. 6 and Fig. 7, this example also comprises rope corner block 7, and described stay cord 5, after being connected to rope tensioning block 6, being connected by rope corner block 7 and is fixed on camera lens handle 3.One end of stay cord 5 is fixed on dustcloth assembly 4 by rope sling 8, the other end is fixed on camera lens handle 3 through rope corner block 7, described rope corner block 7 preferably uses nut 9 to fix, and stay cord 5 is fixed on camera lens handle 3 by rope sling 8, the up and down of such camera lens handle 3 not only can control the locking of camera lens 1 and open, and can also control the folding of dustcloth assembly 4; This routine described stay cord 5 all have passed through smooth treatment through all structural member surface, to reduce frictional damping.
This example fits tightly with blocks dust with camera lens 1 and projector 2 by flexible material such as dustcloth assembly 4 grade respectively, and in order to make camera lens 1 take out smoothly, dustcloth assembly 4 automatic open-close can be made by stay cord 5 and component such as rope tensioning block 6 grade, can also realize controlling the folding of dustcloth assembly 4 by triggering to combine with camera lens handle 3 and stay cord 5, and the structure of the dustproof construction of entirety and camera switching 1 combines together, not only make camera lens 1, to fit between projector 2 and dustcloth assembly 4 closed seamless, and it is very convenient during replacing camera lens 1, the cabinet of projector 2 can be taken apart, just all actions can be completed in outside.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a dust guard for projector's motion camera lens, is characterized in that, comprising: camera lens, projector, dustcloth assembly, stay cord and rope tensioning block; Described camera lens and dustcloth assembly are arranged in projector; One end of described stay cord is connected with dustcloth assembly, is taken out by the folding that can control dustcloth assembly that pulls of stay cord or installs camera lens to facilitate; The other end of described stay cord is through rope tensioning block, and described rope tensioning block is for regulating the degree of tightness of stay cord.
2. the dust guard of projector according to claim 1 motion camera lens, is characterized in that, also comprise rope sling, and one end of described stay cord is fixed on dustcloth assembly by rope sling.
3. the dust guard of projector according to claim 1 motion camera lens, it is characterized in that, described dustcloth assembly comprises dustcloth, annulus, pedestal, hook and turning axle, described dustcloth and annulus are fixed together and are arranged on pedestal, described hook can rotate around the turning axle be fixedly installed on pedestal, and front end and the dustcloth of described hook are combined.
4. the dust guard of projector according to claim 3 motion camera lens, it is characterized in that, described dustcloth comprises cloth hook and elastic cord; The quantity of described cloth hook is equal with the quantity of hook, and described cloth hook and hook connecting are connected together; Described elastic cord is arranged on the opening part of dustcloth, the opening of dustcloth can be made to shrink inward by elastic cord, and described hook can make the opening of dustcloth open outward by cloth hook and stay cord, and then realizes controlling the folding of dustcloth.
5. the dust guard of projector according to claim 4 motion camera lens, it is characterized in that, described dustcloth also comprises base ring, is provided with sponge in described base ring, and base ring is fixedly installed in projector by described annulus.
6. the dust guard of projector according to claim 3 motion camera lens, it is characterized in that, described dustcloth and annulus are respectively provided with four through holes, and dustcloth and annulus are fixed in projector by screw by the position consistency of the through hole of described dustcloth and annulus.
7. the dust guard of projector according to claim 3 motion camera lens, is characterized in that, described dustcloth assembly also comprises the mast for realizing stay cord guiding, and described mast is connected with pedestal.
8. the dust guard of projector according to claim 7 motion camera lens, is characterized in that, described annulus and mast are fixed together respectively by screw and pedestal.
9. the dust guard of the projector's motion camera lens according to claim 1 to 8 any one, it is characterized in that, also comprise camera lens handle, described camera lens handle is the lockup switch of camera lens in projector, when upwards pulling camera lens handle, the lockup switch of described camera lens unclamps, and now can take out camera lens; Then put into camera lens, then by camera lens handle to pressing down, the lockup switch of described camera lens is lockable with the camera lens of fixing loading.
10. the dust guard of projector according to claim 9 motion camera lens, is characterized in that, also comprise rope corner block, and described stay cord, after being connected to rope tensioning block, being connected by rope corner block and is fixed on camera lens handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242183.2A CN104880891B (en) | 2015-05-13 | 2015-05-13 | Dustproof device of projector moving lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242183.2A CN104880891B (en) | 2015-05-13 | 2015-05-13 | Dustproof device of projector moving lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104880891A true CN104880891A (en) | 2015-09-02 |
| CN104880891B CN104880891B (en) | 2017-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510242183.2A Active CN104880891B (en) | 2015-05-13 | 2015-05-13 | Dustproof device of projector moving lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104880891B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087696A (en) * | 2017-12-15 | 2018-05-29 | 芜湖润蓝生物科技有限公司 | A kind of mobile equipment 3D projecting apparatus fixed mechanisms |
| CN108710252A (en) * | 2018-05-02 | 2018-10-26 | 苏州佳世达光电有限公司 | A kind of projection arrangement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039341Y (en) * | 2007-04-13 | 2008-03-19 | 南阳金光数字显示有限公司 | MD high-definition digital TV shell |
| CN201039359Y (en) * | 2007-04-13 | 2008-03-19 | 南阳金光数字显示有限公司 | MD high-definition digital TV |
| US20100177288A1 (en) * | 2009-01-13 | 2010-07-15 | Sanyo Electric Co., Ltd. | Projection Image Display Apparatus |
| CN102636945A (en) * | 2012-04-01 | 2012-08-15 | 深圳雅图数字视频技术有限公司 | Projector and anti-dust device thereof |
-
2015
- 2015-05-13 CN CN201510242183.2A patent/CN104880891B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039341Y (en) * | 2007-04-13 | 2008-03-19 | 南阳金光数字显示有限公司 | MD high-definition digital TV shell |
| CN201039359Y (en) * | 2007-04-13 | 2008-03-19 | 南阳金光数字显示有限公司 | MD high-definition digital TV |
| US20100177288A1 (en) * | 2009-01-13 | 2010-07-15 | Sanyo Electric Co., Ltd. | Projection Image Display Apparatus |
| CN102636945A (en) * | 2012-04-01 | 2012-08-15 | 深圳雅图数字视频技术有限公司 | Projector and anti-dust device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087696A (en) * | 2017-12-15 | 2018-05-29 | 芜湖润蓝生物科技有限公司 | A kind of mobile equipment 3D projecting apparatus fixed mechanisms |
| CN108710252A (en) * | 2018-05-02 | 2018-10-26 | 苏州佳世达光电有限公司 | A kind of projection arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104880891B (en) | 2017-01-18 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| CB02 | Change of applicant information |
Address after: Nanshan District Shahe road Shenzhen city Guangdong province 518000 No. 3011 Baisha building 8415 Applicant after: AVANZA Corp. Address before: Liteon No. 1 building, 518000 Guangdong Province, Shenzhen high tech Zone of Nanshan District City, North Beihuan Avenue North Pine Road 1506 room Applicant before: AVANZA Corp. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A dust-proof device for the motion lens of a projector Granted publication date: 20170118 Pledgee: Shenzhen Rural Commercial Bank Co.,Ltd. Futian Sub branch Pledgor: AVANZA Corp. Registration number: Y2024980002324 |