CN100426121C - Regulating mechanism for electronic viewfinder - Google Patents
Regulating mechanism for electronic viewfinder Download PDFInfo
- Publication number
- CN100426121C CN100426121C CNB2004100945515A CN200410094551A CN100426121C CN 100426121 C CN100426121 C CN 100426121C CN B2004100945515 A CNB2004100945515 A CN B2004100945515A CN 200410094551 A CN200410094551 A CN 200410094551A CN 100426121 C CN100426121 C CN 100426121C
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- China
- Prior art keywords
- wheel
- electronic viewfinder
- governor motion
- driving wheel
- receiving space
- 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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Abstract
The present invention discloses a regulating mechanism for an electronic viewfinder, which is suitable for a digital camera or a camera for overcoming the defects of short regulation precision and easy damage of members existing in the current regulating mechanism. The regulating mechanism of the present invention comprises a framework body, a lens chamber placed in the body, and a drive wheel arranged on the body in a rotary connection mode, wherein a rack and a guide rib are arranged on the lens chamber; a guide groove matched with the guide rid is arranged in the body; a gear matched with the rack of the lens chamber is correspondingly arranged on the drive wheel; the gear is engaged with the rock when the drive wheel rotates, the circumferential motion of the drive wheel is converted into the straight line motion of the rack for driving the lens chamber to move along the guide groove; thereby, the electronic viewfinder can be uniformly, stably and accurately regulated.
Description
[technical field]
The present invention relates to a kind of governor motion of electronic viewfinder, refer in particular to a kind of being applicable on digital camera or the video camera, but have the diopter regulatory function and some near-sighted number of degrees of adequate compensation, thereby make the operator can see the governor motion of the electronic viewfinder of clear accurate picture from view finder.
[background technology]
The employed view finder of digital camera mainly comprises single lens reflex type (SLR at present, Single Lens Reflex) view finder, liquid crystal view finder and electronic viewfinder (EVF, Electronic Viewfinder), wherein the single lens reflex type view finder meets traditional photography personage's custom most, it is the most accurate to find a view, but most digital single lens reflex type camera prices are too expensive, not can bear for common amateur photographer.Many advantages though liquid crystal display is found a view, but its defective is also fairly obvious, for example, enabling that LCDs finds a view is a very operation of power consumption, and open the rising that LCDs will certainly cause camera inner member working temperature for a long time, and make photosensory assembly CCD be heated generation " hot noise " and influence image quality.In addition, under direct sunlight disturbed, the picture of LCDs was easy to thicken unclear.And electronic viewfinder then both can solve the convenience that aforementioned disadvantages does not influence the liquid crystal view finder.Electronic viewfinder is to adopt built-in LCDs mode, this LCDs only is 0.5 inch size usually, have and the big identical resolution of LCDs, because its area is little, can effectively save power consumption, embedding structure has also solved the problem of direct sunlight interference image quality easily simultaneously.The more important thing is that the design of electronic viewfinder meets general photography people's operating habit, make the user who originally only is familiar with the traditional camera operation also can very fast adaptation reach the operation of being familiar with digital camera.
For convenient near-sighted operator uses digital camera, industry manufacturer has further designed the diopter governor motion of electronic viewfinder, thereby electronic viewfinder also can be regulated as the view finder of traditional single lens reflex type camera.As announce the view finder governor motion that discloses a kind of digital camera in the novel patent announcement of TaiWan, China on May 1st, 2002 for No. 486104, it is to utilize two fastened components with inclined-plane and engaging mutually to cooperate a pair of spring member, when itself and second fastened component being separated when stirring its first fastened component, the spring member promotion view finder that is installed in the sliding rail moves forward, when needs adjust back to original position with view finder, the operator promotes view finder backward makes it along the track slippage, second fastened component that is connected on the view finder is fastened with first fastened component again by the cooperation between the inclined-plane, thereby make the view finder location.But the governor motion of aforementioned existing view finder only is to make view finder can be positioned two positions respectively, and can not arbitrarily regulate between the two positions so that it adapts to different users's best requirement, so this design can not be called the regulatory function that has truly.
A kind of existing electronic viewfinder with real regulatory function is the governor motion that adopts driving wheel to cooperate with guide pole at present, as shown in Figures 1 and 2, this electronic viewfinder includes body 1 ', mirror cell 2 ', driving wheel 3 ', fastener 4 ' and LCDs 5 ', wherein mirror cell 2 ' mainly comprises a reception room 20 ', be used to hold and fixing lens subassembly 22 ', 23 ', and combine with a loam cake 21 ' and form circumferential closed chamber, convex with a column guide pole 24 ' on the sidewall of reception room 20 '.Before the body 1 ', back two ends and a side are to be open form, its front end window is to observe for the user, the rear end is to be used to connect LCDs 5 ', the side then is equiped with a dismountable side plate 10 ', the surface of this side plate 10 ' convexes with the wheel seat 11 ' of tool threaded hole 12 ' near the front position place, install for driving wheel 3 ', this wheel seat 11 ' side slightly nearside plate 10 ' medium position place is provided with support 14 ', this support 14 ' is provided with a hole 16 ' in order to holding a steel ball 18 ', and is provided with a fixed orifice 15 ' in addition to match with a screw 19 ' and flexure strip 17 ' is fixed to support 14 '.In addition, between the support 14 ' of side plate 10 ' and wheel seat 11 ', also offer the gathering sill 13 ' that connects side plate 10 '.Driving wheel 3 ' comprises to be used the operating portion of stirring for the user 30 ' and is used for matching with steel ball 18 ' on the aforementioned brackets 14 ' and locatees the location division 31 ' of driving wheel 3 ', this driving wheel 3 ' middle part is offered an axis hole 32 ' and is matched with the threaded hole 12 ' of side plate 10 ' wheel seat 11 ' for screw 33 ' passes, and driving wheel 3 ' is mounted to wheel seat 11 '.In addition, please cooperate and consult Fig. 2, on a side surface of wheel seat 11 ', be provided with the sliding rail of offering by predetermined curve 34 ' at driving wheel 3 '.The guide pole 24 ' of aforementioned mirror cell 2 ' passes the gathering sill 13 ' of side plate 10 ', its end portion places the sliding rail 34 ' of driving wheel 3 ', when the user stirs driving wheel 3 ', along with driving wheel 3 ' rotates, the guide pole 24 ' that is arranged in sliding rail 34 ' is promoted by the sidewall of sliding rail 34 ' and moves horizontally along the gathering sill 13 ' of side plate 10 ', thereby realizes adjusting forward and backward position, mirror cell to regulate the dioptric purpose of electronic viewfinder.
Yet, the prior art scheme that the driving wheel of above-mentioned employing tool sliding rail matches with guide pole, length is longer because the diameter of its guide pole is less, that is the ratio of its diameter and length is less, therefore guide pole is easy to distortion in use even ruptures, thereby directly influences the driving and the adjusting of the inner mirror cell of view finder.And, guide pole is also controlled its smoothness during fabrication with the curvature that needs the accurate Calculation sliding rail that cooperates of the sliding rail of driving wheel, otherwise be difficult to reach and at the uniform velocity and accurately drive the effect that the mirror cell moves, and the shaking phenomenon when causing the mirror cell to move and influence the projection resolving power of view finder, serious even can cooperate the obstruction that does not freely cause the driving wheel rotation because of between guide pole and sliding rail, can't regulate the view finder diopter.
[summary of the invention]
The object of the present invention is to provide a kind of governor motion of electronic viewfinder, so that view finder is carried out free adjustment and makes it can adapt to different users's visual characteristic, this governor motion assembly is less relatively and be easy to processing and assembling, can reach at the uniform velocity, steadily reach the effect of accurately regulating.
For realizing the governor motion of the electronic viewfinder that purpose of the present invention provides, it includes the shaped as frame body, be contained in the mirror cell in this body and be installed in driving wheel on the body in the mode of being rotatably connected, wherein this mirror cell is provided with tooth bar, the corresponding gear that matches with this tooth bar that is provided with on this driving wheel, wheel and rack was meshed and the circular motion of driving wheel is converted into the rectilinear motion of tooth bar when driving wheel rotated, move thereby drive the mirror cell, reach at the uniform velocity, steadily reach the effect of accurately regulating electronic viewfinder.
The governor motion of the electronic viewfinder that provides according to purpose of the present invention, its body is provided with the receiving space that is used to hold the mirror cell, the inwall of receiving space is provided with gathering sill, the corresponding guiding rib that cooperates with it that is provided with in the mirror cell is by guiding rib and cooperating of gathering sill can moving the mirror cell reposefully along predetermined direction.
The governor motion of the electronic viewfinder that provides according to purpose of the present invention, the sidewall of its body is provided with wheel seat, offers on this wheel seat from outside to inside to connect to intrinsic axis hole.
The governor motion of the electronic viewfinder that provides according to purpose of the present invention, its driving wheel comprises a wheel shaft and rotor wheel, the axis hole of this wheel shaft and aforementioned wheel seat is complementary and is installed in the axis hole, it passes axis hole and protrudes this external end is to be connected with rotor wheel, and an end that is arranged in the receiving space of body then is provided with gear.
According to purpose of the present invention and the governor motion of the electronic viewfinder that provides, the rotor wheel of its driving wheel comprises the bigger operating portion of stirring for the user of using of radius, and radius is less and its circumference is provided with the location division of the arc surface of some smooth and continuous.
The governor motion of the electronic viewfinder that provides according to purpose of the present invention, the position of contiguous this wheel seat is provided with a support on the sidewall of its body, offer an accepting hole on this support, one shell fragment is fixed on this support and extends and covers this accepting hole, one steel ball is installed in this accepting hole, one side of steel ball and the arc surface of rotor wheel location division are inconsistent, and opposite side is compressed by shell fragment, locatees driving wheel whereby to avoid its random rotation.
Compare with existing structure, the component count of the governor motion of electronic viewfinder of the present invention is less, and is easy to assembly, and the precision of wheel and rack does not need very high, can adopt the technology of ejection formation to make, so the processing of these parts is easier.And the mode that adopts wheel and rack to match can be guaranteed that mirror cell's uniform motion and moving process steadily do not have to rock, and can accurately regulate the position of mirror cell by the rotation of driving wheel.Therefore, the present invention can effectively solve the defective that existing governor motion exists, and realizes that the diopter of electronic viewfinder is regulated.
[description of drawings]
Fig. 1 is a kind of three-dimensional exploded view of existing electronic viewfinder.
Fig. 2 is the side view of existing electronic viewfinder shown in Figure 1.
Fig. 3 is the three-dimensional exploded view of the governor motion of electronic viewfinder of the present invention.
Fig. 4 is the stereographic map of body of the governor motion of electronic viewfinder of the present invention.
Fig. 5 is the stereographic map of mirror cell of the governor motion of electronic viewfinder of the present invention.
Fig. 6 is the stereographic map of wheel shaft of the governor motion of electronic viewfinder of the present invention.
Fig. 7 is the stereographic map of rotor wheel of the governor motion of electronic viewfinder of the present invention.
Fig. 8 is the side view of the governor motion of electronic viewfinder of the present invention.
Fig. 9 is the rear view of the governor motion of electronic viewfinder.
Figure 10 is the cut-open view of the governor motion of electronic viewfinder.
[embodiment]
See also the governor motion of electronic viewfinder shown in Figure 3, it includes members such as body 1, mirror cell 2, driving wheel 3 and steel ball 4, shell fragment 5, screw 6, and wherein this body 1 is a square framework, has the receiving space 10 that is used for accommodating mirror cell 2.Please cooperate and consult Fig. 4, the front bulkhead of this body 1 and aft bulkhead offer sight vane 101,103 respectively, observe the shown image of LCDs 7 for the user, and be provided with a caulking groove 102 that caves in for installation LCDs 7 outside body 1 aft bulkhead, and these caulking groove 102 upper and lower edges respectively establish a grab 105 with immobile liquid crystal display screen 7.On receiving space 10 diapires of body 1, offer the gathering sill 104 that extends along front and rear direction again.In addition, convex with a cylinder bodily form wheel seat 12 on sidewall 11 outer surfaces of body 1, the end face of this wheel seat 12 is concaved with annular positioning groove 121, and its center is provided with from end face and connects to the axis hole 122 of the receiving space 10 of body 1.The position of contiguous these wheel seat 12 rear sides of sidewall 11 lateral surfaces convexes with a support 13, and its upside is provided with an accepting hole 131 to accommodate steel ball 4, and its downside then is provided with a threaded hole 132 to match with screw 6 and shell fragment 5 is fixedly installed on this support 13.The bottom side of this body 1 also is provided with some installation feet 14 so that electronic viewfinder is mounted on the related device, its top then is provided with a cover plate 15, when assemblies such as mirror cell 2 and driving wheel 3 assemblings finishes, this cover plate 15 is fixed on the body 1 and with receiving space 10 sealings by some screws 16.
Please further consult Fig. 8 to Figure 10,30 groups on aforementioned wheel shaft is gone in the axis hole 122 of body 1, the locating ring 313 of rotor wheel 31 embeds in the annular positioning groove 121 of wheel seats 12 end faces the rotor wheel location, and passes the mounting hole 315 of rotor wheel 31 and match with the threaded hole 302 of wheel shaft 30 and fixedly connected with wheel shaft 30 with screw 32.Steel ball 4 is accommodated in the accepting hole 131 of support 13 of body 1, shell fragment 5 is fixed on the support 13 and the extension of one end covers this accepting hole 131, and a side that makes steel ball 4 is pressed on the arc surface of the location division 312 of rotor wheel 31, its opposite side is then pushed by shell fragment 4, make the rotor wheel 31 of driving wheel 3 be positioned, avoid arbitrarily rotating under its free state.Simultaneously, mirror cell 2 is housed in the receiving space 10 of body 1, and set guiding rib 22 embeds respectively in the set gathering sill 104 of the diapire of cover plate 15 and body 1 on its upper and lower planomural, its tooth bar 21 then with the gear 304 corresponding engagements of wheel shaft 30 ends.
When the user stirred the operating portion 311 of rotor wheel 31, wheel shaft 30 rotated and tooth bar 21 that gear 304 is driven in the mirror cells 2, thereby makes mirror cell 2 uniform motion forward or backward.Cooperating of gathering sill 104 by the guiding rib in the mirror cell 2 22 and body 1, mirror cell 2 can steadily move and situation such as can not occur rocking, float.It is pointed out that as a kind of guide frame, but aforementioned gathering sill 104, guiding rib 22 only are a kind of in many selection schemes.In addition, because the mode that adopts tooth bar 21 to match, can avoid guide pole distortion that prior art exists, fracture and cause the situation of governor motion inefficacy with gear 304.Compared with prior art, the number of components of the governor motion of electronic viewfinder of the present invention is less and structure is also simpler, and the assembly manufacturing accuracy is less demanding, is convenient to processing and manufacturing.And the driving wheel structure adopts the big and less configuration of location division 312 radiuses of operating portion 311 radiuses among the present invention, and the mode that location division 312 adopts the arc surface of smooth connection to match with steel ball, when being stirred, driving wheel do not have the sensation and the noise of obviously beating, improve the comfort when product uses, more can satisfy consumer's requirement.
Claims (25)
1. the governor motion of an electronic viewfinder, it includes body, be housed in the mirror cell in the described body and be installed in driving wheel on the described body in the mode of being rotatably connected, it is characterized in that: described mirror cell is provided with tooth bar, the corresponding gear that matches with described tooth bar that is provided with on the described driving wheel, described wheel and rack was meshed when driving wheel rotated, the circular motion of driving wheel is converted into the rectilinear motion of tooth bar, drives that described mirror cell at the uniform velocity moves forward or backward and the adjusting that realizes view finder.
2. the governor motion of electronic viewfinder as claimed in claim 1, it is characterized in that: described body is provided with the receiving space that is used to hold described mirror cell, and the inwall of described receiving space is provided with gathering sill.
3. the governor motion of electronic viewfinder as claimed in claim 2, it is characterized in that: the gathering sill corresponding to body in the described mirror cell is provided with guiding rib with matching, by guiding rib and cooperating of gathering sill the mirror cell is moved reposefully along predetermined direction.
4. as the governor motion of claim 1 or 3 described electronic viewfinders, it is characterized in that: the sidewall of described body is provided with wheel seat, and the end face of described wheel seat offers the axis hole that connects from outside to inside to the receiving space of body.
5. the governor motion of electronic viewfinder as claimed in claim 4, it is characterized in that: described driving wheel includes wheel shaft, described wheel shaft is that the axis hole with described wheel seat is complementary and is installed in the described axis hole, and the end that described wheel shaft protrudes into the receiving space of described body is provided with gear.
6. the governor motion of electronic viewfinder as claimed in claim 5, it is characterized in that: described driving wheel also includes rotor wheel, and described rotor wheel is the other end with respect to gear that is fixedly connected on described wheel shaft.
7. the governor motion of electronic viewfinder as claimed in claim 6, it is characterized in that: the rotor wheel of described driving wheel includes that radius is bigger uses the operating portion of stirring for the user, and radius is less and its edge is provided with the location division of the arc surface of some smooth and continuous.
8. the governor motion of electronic viewfinder as claimed in claim 7, it is characterized in that: the position of contiguous described wheel seat is provided with support on the sidewall of described body, offer an accepting hole on the described support, wherein contain a steel ball, a shell fragment is fixed on the described support and extends and covers described accepting hole.
9. the governor motion of electronic viewfinder as claimed in claim 8, it is characterized in that: a side of described steel ball is pressed on the arc surface of location division of described rotor wheel, its opposite side is then pushed by shell fragment, thereby driving wheel location is arbitrarily rotated when avoiding its free state.
10. the governor motion of electronic viewfinder as claimed in claim 9, it is characterized in that: the end face of described wheel seat is concaved with annular positioning groove, and the middle part of described rotor wheel is provided with locating ring to match with the locating slot of described wheel seat.
11. the governor motion of electronic viewfinder as claimed in claim 10 is characterized in that: the end that described wheel shaft links to each other with rotor wheel is provided with a connecting seat, and the center of this Connection Block offers threaded hole.
12. the governor motion of electronic viewfinder as claimed in claim 11, it is characterized in that: the other end that is adjacent to described gear on the described wheel shaft has convexed to form a ring-type fin around its side face, and this fin is resisted against on the inwall of receiving space when axle set is gone into the axis hole of body.
13. the governor motion of electronic viewfinder as claimed in claim 12 is characterized in that: the locating ring bottom centre position of described rotor wheel offers the mounting hole of perforation, can match with the threaded hole of wheel shaft for screw passes rotor wheel is fixed in wheel shaft.
14. the governor motion of electronic viewfinder as claimed in claim 13 is characterized in that: described body top is provided with a cover plate, and this cover plate is fixedly mounted on the body and receiving space is sealed.
15. electronic viewfinder, it includes governor motion, this governor motion includes body, mirror cell and driving wheel, wherein said body is square framework configuration, has receiving space, be provided with guide frame in the described receiving space, the sidewall of this body is provided with wheel seat, and the end face of this wheel seat offers the axis hole that connects from outside to inside to body; The mirror cell is housed in the receiving space of described body, and its inside is provided with some lens, and its guide frame corresponding to described body is provided with corresponding fit structure, and the mirror cell is moved along predetermined direction stably; Driving wheel is installed in the axis hole of described body, and it can rotate with respect to body, it is characterized in that: described mirror cell is provided with tooth bar, and the tooth bar that described driving wheel is provided with this mirror cell is complementary and pitch wheel.
16. electronic viewfinder as claimed in claim 15 is characterized in that: described driving wheel includes wheel shaft, and described wheel shaft is that the axis hole with described wheel seat is complementary and is installed in the described axis hole.
17. electronic viewfinder as claimed in claim 16 is characterized in that: described driving wheel also includes rotor wheel, and described rotor wheel is the other end with respect to gear that is fixedly connected on described wheel shaft.
18. electronic viewfinder as claimed in claim 17 is characterized in that: the rotor wheel of described driving wheel includes that radius is bigger uses the operating portion of stirring for the user, and radius is less and its edge is provided with the location division of the arc surface of some smooth and continuous.
19. electronic viewfinder as claimed in claim 18, it is characterized in that: the position of contiguous described wheel seat is provided with a support on the sidewall of described body, offer an accepting hole on this support, wherein contain a steel ball, a shell fragment is fixed on the described support and extends and covers described accepting hole.
20. electronic viewfinder as claimed in claim 19, it is characterized in that: a side of described steel ball is pressed on the arc surface of location division of described rotor wheel, its opposite side is then pushed by shell fragment, thereby driving wheel location is arbitrarily rotated when avoiding its free state.
21. electronic viewfinder as claimed in claim 20 is characterized in that: the end face of described wheel seat is concaved with annular positioning groove, and the middle part of described rotor wheel is provided with locating ring to match with the locating slot of described wheel seat.
22. electronic viewfinder as claimed in claim 21 is characterized in that: the end that described wheel shaft links to each other with rotor wheel is provided with a connecting seat, and the center of described Connection Block offers threaded hole.
23. electronic viewfinder as claimed in claim 22, it is characterized in that: the other end that is adjacent to described gear on the described wheel shaft has convexed to form a ring-type fin around its side face, and this fin is resisted against on the inwall of receiving space when axle set is gone into the axis hole of body.
24. electronic viewfinder as claimed in claim 23 is characterized in that: the locating ring bottom centre position of described rotor wheel offers the mounting hole of perforation, matches with the threaded hole of wheel shaft for screw passes rotor wheel is fixed in wheel shaft.
25. electronic viewfinder as claimed in claim 24 is characterized in that: described body top is provided with a cover plate, and described cover plate is fixedly installed on the body and receiving space is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100945515A CN100426121C (en) | 2004-11-09 | 2004-11-09 | Regulating mechanism for electronic viewfinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100945515A CN100426121C (en) | 2004-11-09 | 2004-11-09 | Regulating mechanism for electronic viewfinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1773362A CN1773362A (en) | 2006-05-17 |
| CN100426121C true CN100426121C (en) | 2008-10-15 |
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ID=36760397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100945515A Expired - Fee Related CN100426121C (en) | 2004-11-09 | 2004-11-09 | Regulating mechanism for electronic viewfinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100426121C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018116291A (en) * | 2018-03-01 | 2018-07-26 | 株式会社ニコン | camera |
| CN113227894A (en) * | 2020-07-29 | 2021-08-06 | 深圳市大疆创新科技有限公司 | Electronic viewfinder and photographing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5570149A (en) * | 1993-07-16 | 1996-10-29 | Nikon Corporation | Camera having a collapsible mount type photographic optical system |
| JP2001154249A (en) * | 1999-11-30 | 2001-06-08 | Canon Inc | Camera |
| CN2476043Y (en) * | 2001-05-15 | 2002-02-06 | 英保达股份有限公司 | Rotation shaft structure |
| CN1397834A (en) * | 2001-07-12 | 2003-02-19 | 奥森巴斯光学工业株式会社 | Regulating device of camera and regulating method |
-
2004
- 2004-11-09 CN CNB2004100945515A patent/CN100426121C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5570149A (en) * | 1993-07-16 | 1996-10-29 | Nikon Corporation | Camera having a collapsible mount type photographic optical system |
| JP2001154249A (en) * | 1999-11-30 | 2001-06-08 | Canon Inc | Camera |
| CN2476043Y (en) * | 2001-05-15 | 2002-02-06 | 英保达股份有限公司 | Rotation shaft structure |
| CN1397834A (en) * | 2001-07-12 | 2003-02-19 | 奥森巴斯光学工业株式会社 | Regulating device of camera and regulating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1773362A (en) | 2006-05-17 |
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Granted publication date: 20081015 Termination date: 20101109 |