CN101546092B - Dustproof cover structure for lens - Google Patents
Dustproof cover structure for lens Download PDFInfo
- Publication number
- CN101546092B CN101546092B CN2008100905018A CN200810090501A CN101546092B CN 101546092 B CN101546092 B CN 101546092B CN 2008100905018 A CN2008100905018 A CN 2008100905018A CN 200810090501 A CN200810090501 A CN 200810090501A CN 101546092 B CN101546092 B CN 101546092B
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- connecting rod
- blade
- dustproof
- outside
- cover structure
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Abstract
The present invention relates to a dustproof cover structure for a lens, which comprises: a dustproof base, which is provided with a central hole and comprises a first surface and a second surface; an inner connecting rod, which is rotatably arranged on the first surface of the dustproof base and is provided with a positioning column which extends from the first surface to the outside of the second surface of the dustproof base and can rotate along with the inner connecting rod; an outer connecting rod, which is rotatably sleeved outside the inner connecting rod and is provided with a blade closing action source; a blade, which is rotatably connected with the second surface of the dustproof base and is connected with the positioning column of the inner connecting rod; and a blade closing elastic component, which is connected between the inner connecting rod and the outer connecting rod and is used for driving the inner connecting rod to rotate in the rotating process of the outer connecting rod so as to close the blade. The dustproof cover structure is provided with the two connecting rods, the inner connecting rods is directly connected to two pieces of blades, and the two pieces of the blades are driven and closed by the same blade closing spring, thus the problem that the blades cannot be completely closed due to different blade closing forces in the prior art is overcome.
Description
Technical field
The present invention relates to lens assembly, more particularly, relate to a kind of dustproof cover structure of camera lens.
Background technology
At present at many image capture equipment, for example on mobile lens, minicam and the slim camera, all be provided with built-in dust cap (barrier) structure, when the camera lens of camera is taken in, two blade closures of dustproof cover structure, thus camera lens blocked, avoid dust to fall into.
Shown in Fig. 1-4, existing dustproof cover structure generally includes the dustproof base 1 of annular, and it has center pit 2, be used to allow light by and enter camera lens.This dustproof base 1 comprises first surface 3 and second surface 4.On the first surface 3 of dustproof base 1, be provided with concentric with it annular connecting rod 5, and two arcuate sockets 6 that are through to second surface 4 and are oppositely arranged from first surface 3.On annular connecting rod 5, be provided with two projections 7 that cooperate with two arcuate sockets 6.Be equipped with the reference column 8 that extends to second surface 4 on each projection 7.
On the second surface 4 of dustproof base 1, be provided with blade 9 and lower blade 10 in opposite directions.Blade 9 rotatably is connected on the dustproof base 1 by tie point 11, and the end is connected with the reference column 8 of annular connecting rod 5 by blade closing spring 12.Similar with it, lower blade 10 rotatably is connected on the dustproof base 1 by another tie point 11, and the end is connected with another reference column 8 of annular connecting rod 5 by another blade closing spring 12.
Connecting rod 5 is provided with the closed start of blade source 13, and can rotate (being clockwise direction) in Fig. 2 in the counter clockwise direction among associated drives power effect lower edge Fig. 1.See Fig. 2 for details, this moment, the reference column 8 of connecting rod 5 rotated thereupon, and spurred the end of blade 9, lower blade 10 respectively by two blade closing springs 12, and two blades are rotated counterclockwise around separately tie point 11 respectively, thus closure.
Also be provided with blade and open spring 14 on first surface 3, the one end is fixed on the dustproof base 1, and the other end is connected on the annular connecting rod 5, and when the counter clockwise direction of the closed start of blade source 13 drivening rods 5 in Fig. 1 rotated, blade was opened spring 14 and is elongated.After being applied to acting force on the closed start of the blade source 13 and cancelling, connecting rod 5 is opened at blade under the restoring force effect of spring 14, rotates along the counter clockwise direction among Fig. 4, two blades is clockwise rotated around separately tie point 11 respectively, thereby open.
The defective of this existing dustproof cover structure is, during blade 9,10 closures, is to be driven respectively by two blade closing springs 12.When the strength of two blade closing springs varies in size, may cause the situation of blade 9,10 incompetences; This moment, dust was fallen in the camera lens easily, and filming image is caused interference.
Summary of the invention
The technical problem to be solved in the present invention is that in the dustproof cover structure at prior art, thereby the closed strength of two blades may different cause the defective of incompetence, and a kind of dustproof cover structure of camera lens is provided, and can overcome the different problem of the closed strength of blade.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of dustproof cover structure of camera lens, comprising:
Dustproof base is provided with center pit, and comprises first surface and second surface;
The annular inside connecting rod is arranged on the first surface of described dustproof base rotationally, has from the first surface of described dustproof base to extend to second surface outside and can be with the reference column of inside connecting rod rotation;
The annular outside connecting rod is set in outside the described inside connecting rod rotationally, and it is provided with the closed start of blade source;
Blade is rotatably connected to the second surface of described dustproof base, and is connected with the reference column of described inside connecting rod; And
The closed flexible member of blade is connected between described inside connecting rod and the outside connecting rod, is used for driving described inside connecting rod in described outside connecting rod rotating process and rotates, and makes the blade closure;
Wherein said outside connecting rod is provided with first connecting portion, and described inside connecting rod is provided with second connecting portion; The two ends of the closed flexible member of described blade are connected on described first connecting portion and second connecting portion; The end face of described outside connecting rod is provided with groove, and described second connecting portion is contained in wherein.
Implement the dustproof cover structure of camera lens of the present invention, has following beneficial effect: double link is set in dustproof cover structure, inside connecting rod is directly connected on two blades, drive two blades by same blade closing spring and close, overcome the problem that blade in the prior art is closed the blade incompetence that the strength difference caused.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the front view of dustproof cover structure of the prior art when the blade open mode;
Fig. 2 is the rear view of dustproof cover structure of the prior art when the blade open mode;
Fig. 3 is the front view of dustproof cover structure of the prior art when the blade closure state;
Fig. 4 is the rear view of dustproof cover structure of the prior art when the blade closure state;
Fig. 5 is the exploded perspective view of dustproof cover structure of the present invention;
Fig. 6 is another exploded perspective view of dustproof cover structure of the present invention;
Fig. 7 is the front view of dustproof cover structure of the present invention when the blade open mode;
Fig. 8 is the rear view of dustproof cover structure of the present invention when the blade open mode;
Fig. 9 is the front view of dustproof cover structure of the present invention when the blade closure state;
Figure 10 is the rear view of dustproof cover structure of the present invention when the blade closure state.
Embodiment
As shown in Figure 5 and Figure 6, dustproof cover structure 100 of the present invention comprises dustproof base 101, annular inside connecting rod 102, annular outside connecting rod 103, first blade 104 and second blade 105.Dustproof base 101 is provided with center pit 106, thus the annular of formation; This center pit 106 be used to allow light by and enter camera lens.Dustproof base 101 comprises first surface 107 and second surface 108, on first surface 107, is provided with the interior ring 109 of protrusion.Should stretch out by interior ring 109 inside diameter surfaces from dustproof base 101.Encircle outside 109 in inside connecting rod 102 is set in, and outside connecting rod 103 is set in outside the inside connecting rod 102, this three is concentric.
On second surface 108, be provided with first blade 104 and second blade 105.With reference to Fig. 8 and Figure 10, first blade 104 and second blade 105 are laminar, flat being located on the second surface 108.First blade 104 and second blade 105 include the front end of broad and thinner rear end, and the rear end is pivotally connected to second surface 108 by tie point 112a, 112b respectively.Stretch out extension 113a, 113b respectively from the rear end of each blade, be respectively arranged with slotted hole 114a, 114b on it.In this embodiment, extension 113a, 113b from the rear end forward end bending of each blade, with conserve space, also can adopt other setting respectively.
Seeing Fig. 8 for details, is example with first blade 104, and when first blade 104 was opened, reference column 111a was positioned at the upper end of arc-shaped through-hole 110a, and the slotted hole 114a left end of close blade.When the clockwise direction of inside connecting rod 102 in Fig. 8 rotated, reference column 111a slides to the lower end of arc-shaped through-hole 110a, driving extension 113a rotates counterclockwise around tie point 112a, in this process, reference column 111a is gradually near the slotted hole 114a right-hand member of blade, and arrive arc-shaped through-hole 110a bottom the time stop motion.This moment, the front end of first blade 104 turned to make-position, as shown in figure 10.The motion of second blade 105 is similar with it, and different is that both directions are opposite.Do not repeat them here.When these two blades, 104,105 closures, their front end hides the center pit 106 of dustproof base 101 jointly, enters to prevent dust.
In order to reduce first blade 104, second blade 105 in rotation process and the friction between the dustproof base 101, on the second surface 108 of dustproof base 101, be respectively each blade and be provided with the rotation protruding rail, reducing the contact area in the motion process, and do not influence the stationarity of blade movement.In this embodiment, be that first blade 104 is provided with two and rotates protruding rail 115a, 115b, front end that rotates protruding rail 115b near first blade 104 wherein, it is shaped as the arc that first blade, 104 nose motion mark.Another rotates the rear end of protruding rail 115a near first blade, and it is shaped as the arc that the 104 back end motions of first blade mark.Similarly, second blade 105 is being provided with an arc rotation protruding rail 116b near the front end place, also be provided with an arc rotation protruding rail 116a near rear end.Consider when the setting of rotating protruding rail may make the blade closure and between the center pit 106 of dustproof base 101 and produce the slit, on the second surface 108 of dustproof base 101, around protruding rail 131a, the 131b that center pit 106 is provided for sealing, its height is identical with the rotation protruding rail.
Refer again to Fig. 5, Fig. 7 and Fig. 9, on the outer peripheral face of outside connecting rod 103, be provided with two section first groove 117, the height of this first groove 117 is less than the height of outside connecting rod 103, it can be as shown in Figure 9, extend to the end face of outside connecting rod 103 from the outer peripheral face middle part of outside connecting rod 103 always, also can not be communicated with the end face and the bottom surface of outside connecting rod 103.On dustproof base 101, be provided with corresponding claw 118, the height of the height of claw 118 and first groove 117 adapts.The quantity of first groove 117 and claw 118 can be provided with as required.First groove 117 is stretched on the top of claw 118, thereby outside connecting rod 103 is pivotally connected on the dustproof base 101, and can only rotate with respect to dustproof base 101 in the length range of first groove 117.For the ease of outside connecting rod 103 is assembled on the dustproof base 101, an end of first groove 117 is provided with the outside connecting rod group and goes into groove 119, and this outside connecting rod group is gone into groove 119 and is communicated with first groove 117, and extends to the bottom of outside connecting rod 103 always; And its width preferably equals or is slightly larger than the width of claw 118.Like this, 103 groups of outside connecting rods is fashionable, the outside connecting rod group is gone into groove 119 aim at the claw 118 of dustproof base 1, claw 118 is entered, rotate outside connecting rod 103 afterwards, claw 118 is cooperated with first groove 117 get final product.
The fixed form of inside connecting rod 102 and outside connecting rod 103 are similar.On the inner peripheral surface of inside connecting rod 102, be provided with two section second groove 120, the height of this second groove 120 is less than the height of inside connecting rod 102, it can be as shown in Figure 9, extend to the end face of inside connecting rod 102 from the inner peripheral surface middle part of inside connecting rod 102 always, also can not be communicated with the end face and the bottom surface of inside connecting rod 102.On dustproof base 101, be provided with corresponding fixture block 121, the height of the height of fixture block 121 and second groove 120 adapts.Second groove 120 can be provided with as required with the quantity of fixture block 121.This fixture block 121 is outstanding from the outer peripheral face of the interior ring 109 of dustproof base 101, and stretch into second groove 120, thereby inside connecting rod 102 is pivotally connected on the dustproof base 101, and can only in the length range of second groove 120, rotates with respect to dustproof base 101.For the ease of inside connecting rod 102 is assembled on the dustproof base 101, an end of second groove 120 is provided with the inside connecting rod group and goes into groove 122, and this inside connecting rod group is gone into groove 122 and is communicated with second groove 120, and extends to the bottom of inside connecting rod 102 always; And its width preferably equals or is slightly larger than the width of fixture block 121.Like this, 102 groups of inside connecting rods are fashionable, the inside connecting rod group is gone into groove 122 aim at fixture block 121 on the interior ring 109 of dustproof base 101, and fixture block 121 is entered, and rotate inside connecting rod 102 afterwards, fixture block 121 is cooperated with second groove 120 get final product.
Outside connecting rod 103 and inside connecting rod 102 with respect to dustproof base 101 rotating process in, in order to guarantee that a plurality of claws 118 can both cooperate with first groove 117, and a plurality of fixture blocks 121 can both cooperate with second groove 120, and therefrom do not deviate from, and each connecting rod inside, and do not produce interference between each connecting rod yet, when blade begins closure, (both rotate in the same way on the sense of rotation of outside connecting rod 103 and inside connecting rod 102, below will introduce in detail), the outside connecting rod group is gone into the rear end that groove 119 all is positioned at first groove 117, and the inside connecting rod group is gone into the front end that groove 122 all is positioned at second groove 120.With Fig. 7 is example, and from counterclockwise, the outside connecting rod group is gone into the rear end that groove 119 all is positioned at first groove 117, and the inside connecting rod group is gone into the front end that groove 122 all is positioned at second groove 120.
On outside connecting rod 103, be provided with the closed start of blade source 123, when camera lens is taken in, be driven, thereby drive outside connecting rod 103 towards making the direction of blade closure rotate.Outside connecting rod 103 and inside connecting rod 102 are connected to each other by blade closing spring 124.Particularly, outside connecting rod 103 is provided with first connecting portion 125, and inside connecting rod 102 is provided with second connecting portion 126, two ends with blade closing spring 124 are connected respectively, these two connecting portions are column, also can adopt other shape, for example hook-shaped, ring-type or the like.For make outside connecting rod 103 can drive inside connecting rod 102 towards make the direction of blade closure rotate (just, among Fig. 7 counterclockwise, among Fig. 8 clockwise), along this rotation direction, before first connecting portion 125 is arranged on, and after second connecting portion 126 is arranged on.And for laborsaving, first connecting portion 125 is arranged on the top of outside connecting rod 103; Second connecting portion 126 is arranged on the top of inside connecting rod 102, makes that the pulling force of 124 pairs of inside connecting rods 102 of blade closing spring is roughly tangential along the circumference of inside connecting rod 102.The end face of outside connecting rod 103 is provided with the 3rd groove 130, and second connecting portion 126 is contained in wherein, and when the closed start of blade source 123 drove outside connecting rod 103 rotations, blade closing spring 124 was elongated, thereby pulling inside connecting rod 102 rotates in the same way.This moment, second connecting portion 126 of inside connecting rod 102 installed on the front end side wall of the 3rd groove 130 under the pulling force effect of blade closing spring 124.Front end herein is the rotation direction with respect to outside connecting rod 103 in the blade closing course, understand easily, in the blade opening process, during outside connecting rod 103 backward rotation, for the rotation direction of outside connecting rod 103, this sidewall is positioned at the rear end at this moment, and second connecting portion 126 of inside connecting rod 102 is applied and the consistent thrust of outside connecting rod 103 rotation directions.Except this embodiment, also can be in addition inside connecting rod 102 and outside connecting rod 103 wherein teat is set on one, corresponding recess is set on another person; Interactional teat perhaps is set respectively on both; Under the pulling force effect of blade closing spring 124, both install mutually, during outside connecting rod 103 backward rotation, promote inside connecting rod 102 backward rotation by this.
Between outside connecting rod 103 and dustproof base 101, be connected with blade and open spring 127.Particularly, be provided with the 3rd connecting portion 128 at the outer peripheral face of outside connecting rod 103, the position is provided with the 4th connecting portion 129 near on the dustproof base 101, and blade is opened spring 127 and is connected between the two.In this embodiment, the 3rd connecting portion 128 is hook-shaped, and the 4th connecting portion 129 is a column.Also can adopt any other suitable shape.When blade is closed on the rotation direction of outside connecting rod 103, before the 3rd connecting portion 128 of outside connecting rod 103 is arranged on, and after the 4th connecting portion 129 of dustproof base 101 is arranged on.In the process of blade closure, outside connecting rod 103 rotates, and blade is opened spring 127 and is elongated; After being applied to acting force on the closed start of the blade source 123 and cancelling, under the effect of restoring force, blade is opened spring 127 and is shortened, and the 3rd connecting portion 128 of pulling outside connecting rod 103 makes its backward rotation.At this moment, on the one hand, blade closing spring 124 also shortens, and the acting force of inside connecting rod 102 is reduced until cancelling, and the pulling force that inside connecting rod 102 is subjected to is cancelled, and makes inside connecting rod 102 backward rotation.On the other hand, the sidewall of the 3rd groove 130 of outside connecting rod 103 installs second connecting portion 126 in inside connecting rod 102, to its applied thrust, makes inside connecting rod 102 rotate thereupon.Under the effect of this double factor, inside connecting rod 102 rotates along clockwise direction shown in Figure 9 (counter clockwise direction among Figure 10), and drives first blade 104 and 105 rotations of second blade by reference column 111a, 111b, and it is opened.On the second surface 108 of dustproof base 101, be provided with blade stop means 132a, 132b, when first blade 104 and second blade 105 are opened to preposition, blade stop means 132a, 132b block first blade 104 and second blade 105 respectively, turn to outside the dustproof base 101 to prevent them.
In the dustproof cover structure of the present invention double link is set; inside connecting rod is directly connected on two blades; driving two blades by same blade closing spring closes; overcome blade in the prior art and closed the problem of the blade incompetence that the strength difference caused; can protect the camera lens of photographic equipment, prevent that dust from falling into.
Claims (7)
1. the dustproof cover structure of a camera lens is characterized in that, comprising:
Dustproof base (101) is provided with center pit (106), and comprises first surface (107) and second surface (108);
Annular inside connecting rod (102), be arranged on the first surface (107) of described dustproof base (101) rotationally, have the reference column (111a, 111b) that extends to outside the second surface (108) and can rotate with inside connecting rod (102) from the first surface (107) of described dustproof base (101);
Annular outside connecting rod (103) is set in outside the described inside connecting rod (102) rotationally, and it is provided with the closed start source (123) of blade;
Blade (104,105) is rotatably connected to the second surface (108) of described dustproof base (101), and is connected with the reference column (111a, 111b) of described inside connecting rod (102); And
The closed flexible member (124) of blade is connected between described inside connecting rod (102) and the outside connecting rod (103), is used for driving described inside connecting rod (102) in described outside connecting rod (103) rotating process and rotates, and makes blade (104,105) closure;
Wherein said outside connecting rod (103) is provided with first connecting portion (125), and described inside connecting rod (102) is provided with second connecting portion (126); The two ends of the closed flexible member of described blade (124) are connected on described first connecting portion (125) and second connecting portion (126); The end face of described outside connecting rod (103) is provided with groove (130), and described second connecting portion (126) is contained in wherein.
2. the dustproof cover structure of camera lens according to claim 1, it is characterized in that, described inside connecting rod (102) and described outside connecting rod (103) are provided with the part (130,126) that installs mutually, and the described part that installs mutually (130,126) is the groove (130) on the end face of described second connecting portion (126) and described outside connecting rod (103); Described dustproof cover structure also comprises the blade unlatching flexible member (127) that is connected between described outside connecting rod (103) and the described dustproof base (101), be used to provide and make the counter-rotational restoring force of described outside connecting rod (103), and, blade (104,105) is opened by the described part that installs mutually (130,126) drive inside connecting rod (102) backward rotation.
3. the dustproof cover structure of camera lens according to claim 1 is characterized in that, on the outer peripheral face of described outside connecting rod (103), is provided with groove (117); Described dustproof base (101) is provided with corresponding claw (118), and described claw (118) stretches into the groove (117) on the outer peripheral face of described outside connecting rod (103), and described outside connecting rod (103) is pivotally connected on the described dustproof base (101).
4. the dustproof cover structure of camera lens according to claim 1 is characterized in that, the first surface (107) of described dustproof base (101) is provided with the interior ring (109) of protrusion, and it is provided with fixture block (121); Described inside connecting rod (102) is set in outside the described interior ring (109), it is provided with groove (120), described fixture block (121) stretches into the groove (120) on the described inside connecting rod (102), and described inside connecting rod (102) is pivotally connected on the described dustproof base (101).
5. the dustproof cover structure of camera lens according to claim 2 is characterized in that, described outside connecting rod (103) is provided with the 3rd connecting portion (128), and described dustproof base (101) is provided with the 4th connecting portion (129); The two ends that described blade is opened flexible member (127) are connected on described the 3rd connecting portion (128) and the 4th connecting portion (129); In blade (104,105) closing course, described outside connecting rod (103) rotates, and described blade is opened flexible member (127) elongate.
6. the dustproof cover structure of camera lens according to claim 1 is characterized in that, on the second surface (108) of described dustproof base (101), is provided with blade rotation protruding rail (115a, 115b); Center pit (106) around described dustproof base (101) is provided with the protruding rail (131a, 131b) that is used to seal, and its height is identical with described rotation protruding rail (115a, 115b).
7. the dustproof cover structure of camera lens according to claim 1 is characterized in that, described dustproof base (101) is provided with arc-shaped through-hole (110a, 110b), and described blade (104,105) is provided with slotted hole (114a, 114b); The reference column of described inside connecting rod (102) (111a, 111b) passes described arc-shaped through-hole (110a, 110b), extends in the slotted hole (114a, 114b) of described blade (104,105) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100905018A CN101546092B (en) | 2008-03-24 | 2008-03-24 | Dustproof cover structure for lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100905018A CN101546092B (en) | 2008-03-24 | 2008-03-24 | Dustproof cover structure for lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101546092A CN101546092A (en) | 2009-09-30 |
| CN101546092B true CN101546092B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100905018A Expired - Fee Related CN101546092B (en) | 2008-03-24 | 2008-03-24 | Dustproof cover structure for lens |
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| CN (1) | CN101546092B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898114B (en) * | 2014-05-07 | 2018-02-16 | 光宝科技股份有限公司 | Image collection module |
| CN110588676B (en) * | 2019-08-20 | 2020-12-29 | 中车四方车辆有限公司 | Dustproof water injection nozzle and using method thereof |
| CN110609429A (en) * | 2019-09-29 | 2019-12-24 | 合肥英睿***技术有限公司 | Multi-blade lens cap device |
| CN113741117B (en) * | 2020-05-13 | 2023-07-04 | 北京小米移动软件有限公司 | Aperture structure, camera and terminal equipment |
| CN111642802A (en) * | 2020-06-29 | 2020-09-11 | 深圳市吉迩科技有限公司 | Dust cap mechanism, atomizing device and aerosol generating device |
| WO2023077380A1 (en) * | 2021-11-04 | 2023-05-11 | 深圳市大疆创新科技有限公司 | Shutter mechanism, exposure unit, lens, and imaging device |
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| CN1525235A (en) * | 2003-02-24 | 2004-09-01 | ������������ʽ���� | Camera and optical apparatus |
| US6858959B2 (en) * | 2001-09-28 | 2005-02-22 | Canon Kabushiki Kaisha | Motor and light amount adjusting apparatus |
| CN1734344A (en) * | 2004-06-29 | 2006-02-15 | 日本电产科宝株式会社 | Blade driving apparatus for cameras |
| CN101109887A (en) * | 2006-07-17 | 2008-01-23 | 亚洲光学股份有限公司 | Multistage combined diaphragm shutter device with fast switching shutter |
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- 2008-03-24 CN CN2008100905018A patent/CN101546092B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6858959B2 (en) * | 2001-09-28 | 2005-02-22 | Canon Kabushiki Kaisha | Motor and light amount adjusting apparatus |
| CN1525235A (en) * | 2003-02-24 | 2004-09-01 | ������������ʽ���� | Camera and optical apparatus |
| CN1734344A (en) * | 2004-06-29 | 2006-02-15 | 日本电产科宝株式会社 | Blade driving apparatus for cameras |
| CN101109887A (en) * | 2006-07-17 | 2008-01-23 | 亚洲光学股份有限公司 | Multistage combined diaphragm shutter device with fast switching shutter |
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| CN101546092A (en) | 2009-09-30 |
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Granted publication date: 20111116 Termination date: 20120324 |