CN1187646C - Electromagnetic driving optical shutter - Google Patents
Electromagnetic driving optical shutter Download PDFInfo
- Publication number
- CN1187646C CN1187646C CNB021031274A CN02103127A CN1187646C CN 1187646 C CN1187646 C CN 1187646C CN B021031274 A CNB021031274 A CN B021031274A CN 02103127 A CN02103127 A CN 02103127A CN 1187646 C CN1187646 C CN 1187646C
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- Prior art keywords
- yoke
- rotor
- shutter
- coil
- electromagnetic driving
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- Expired - Fee Related
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- 230000000452 restraining effect Effects 0.000 abstract 2
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
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Images
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- Shutters For Cameras (AREA)
Abstract
The invention provides an electromagnetic driving shutter capable of restraining the loss of magnetic force and restraining arrangement space for the component parts of an electromagnetic driving mechanism for opening/closing a shutter blade as an electromagnetic driving shutter for opening/closing a shutter blade by a rotor turned by receiving the action of the magnetic force. SOLUTION: Two coils are arranged to put the rotor in between and both ends of a yoke through which the two coils pierce are proximate to the rotor. The part of the yoke where the two coils are connected has such dimension that its height dimension in a direction perpendicular to a shutter plate is larger than its thickness dimension in the in-plane direction of the shutter plate.
Description
Technical field
The present invention relates to that a kind of usefulness is subjected to the effect of electromagnetic force and the rotor that rotates comes the electromagnetic driving optical shutter of on-off shutter blade.
Background technology
As everyone knows, the electromagnetic driving optical shutter in past is to be subjected to coil electricity and the effect of magnetized yoke, makes the rotor rotation of on-off shutter blade.This electromagnetic driving optical shutter has the shutter substrate of band opening, by the rotor of on-off shutter blade, perhaps the electromagnetic drive mechanism of the formations such as yoke of rotor and its rotor of driving is contained in (with reference to opening clear 63-113127 number bulletin, spy opens bulletin flat 9-80583 number in fact) on this shutter substrate.
About in this electromagnetic driving optical shutter about the configuration of the coil on the shutter substrate and yoke and rotor, various motions were arranged in the past, perhaps practicability.
Fig. 6 is the figure of the basic structure of the electromagnetic driving optical shutter of interior dress in the camera of representing in the past.
Electromagnetic driving optical shutter 200 shown in Fig. 6, its structure is: be provided with in central authorities on the end of shutter substrate 230 of opening and disposing rotor 240, simultaneously, relative with this rotor 240 on this shutter substrate 230, on the opposite side position of shutter plate 230 openings, disposed coil 250, yoke 260 runs through this coil 250 extends to rotor 240 around the central opening of shutter plate 230 next door.
Open flat 9-80583 number as the spy and announce disclosed electromagnetic driving optical shutter, its structure is: disposed on shutter substrate in the rotor, also have side direction in the shutter plane to be the both sides bending of font and end yoke near the bending and forming of rotor, be configured on the shutter plate, and extending to the both sides of the rotating shaft of rotor, two coils are the two side portions of oxbow respectively around yoke.
But, the electromagnetic driving optical shutter of structure as shown in Figure 6, coil 250 separates with rotor 240, so the magnetic force that produces to coil 250 energisings can produce magnetic loss by yoke 260 time.Therefore, the magnetic force that the two ends of yoke 260 act on rotor 240 than the magnetic force that produces to coil 250 energisings a little less than, the action of rotor 240 is just unstable.And this configuration is in order to be controlled at minimum zone to magnetic loss, essentially adopts heavy in section yoke, thus must leave on the shutter substrate 230 except space that assembling coil 250 and rotor will be arranged with the external space, as the space of yoke 260.But, on shutter substrate 230, also wish to load onto part in addition such as sensor and open and close type lens cap, be the bigger the better so wish this space.
Put down in writing basically on the 71st page of " description industry " in July, 1996 number (Vol.54 No7) as the introduction of the electromagnetic driving optical shutter of Fig. 6 structure is kept record, wherein on shutter substrate in the past and the AF that establishes move to base side with regulator, thereby smoothly arrive intensification.
As mentioned above, the electromagnetic driving optical shutter of this mode, its yoke 260 occupies bigger area, and its structure is unfavorable to the mechanism and other part that assemble other on shutter substrate.
Above-mentioned spy opens the electromagnetic driving optical shutter on the bulletin flat 9-80583 number, and across rotor configuration, this is than lacking across the magnetic loss of opening at the electromagnetic driving optical shutter yoke of the symmetrical side configuration coil of rotor two coils.But yoke bends to font, consequently just rotor is applied the effect of magnetic force after the direction of the magnetic force that coil electricity produces is turned, and then can produce magnetic loss when the direction of magnetic force is turned.And then, for the magnetic loss between yoke and the rotor is controlled at Min., with regard to wishing the interval between yoke and rotor is dwindled, but the end of the close rotor of yoke is a bending forming that the part precision is low in addition, has produced the too near problem that can't lean on.
In view of the foregoing the objective of the invention is to, a kind of electromagnetic shutter is provided, with the formation of the electromagnetic drive mechanism that suppresses magnetic loss, the compressed configuration on-off shutter blade shared space of part in addition.
Summary of the invention
For achieving the above object, electromagnetic shutter of the present invention, it is characterized in that: a kind of electromagnetic driving optical shutter, comprise: offer the shutter substrate that can pass through the opening of light beam, with can open and close the blade that blocks described opening freely, with be installed on the described shutter substrate and be subjected to magneticaction and rotate, the rotor that described blade is opened and closed, with across described rotor setting and the time make a pair of coil of described rotor rotation in energising, with extend around described opening, run through described a pair of coil both sides and its two ends yoke near described rotor, it is characterized in that: described yoke, by each 1 parts at least that run through described a pair of coil respectively, with interconnective 1 parts of described a pair of coil, amounting to 3 constitutes with upper-part, wherein: described yoke be the interconnective part of described a pair of coil around the structure that is located at the opening on the described shutter substrate and extends, and it is perpendicular to the height dimension of this shutter substrate direction gauge greater than direction in the described shutter substrate face.
Electromagnetic driving optical shutter of the present invention, across two coils of rotor configuration, pass the close rotor in two ends of the yoke of these two coils, therefore, comparing at the electromagnetic driving optical shutter of the relative opposite side configuration coil of rotor every crossing opening as shown in Figure 6, the magnetic loss of yoke is few.
And yoke needn't bend to the コ font, and this point also can make the magnetic loss of yoke reduce.
Yoke of the present invention can be used the punch process moulding, and it is narrower therefore can to improve dimensional accuracy, control yoke and gap between rotor, and inhibiting effect is in the magnetic loss of rotor.
Therefore, can on the basis that as far as possible reduces magnetic loss, act on rotor to the magnetic force that produces to coil electricity.
The electromagnetic driving optical shutter of the invention described above is made every effort to the part that links mutually with above-mentioned a pair of coil above-mentioned yoke, has perpendicular to the height dimension of the shutter substrate direction gauge greater than direction in the above-mentioned shutter substrate plane.
Under the situation of the electromagnetic driving optical shutter of structure, coil 250 is configured in an opposite side of yoke 240 as shown in Figure 6, therefore, for the magnetic force that coil 250 is produced is communicated to rotor 240 effectively, will strengthen the sectional area of yoke 260, to suppress the magnetic force loss.
And as shown in Figure 6 under the situation of the electromagnetic driving optical shutter of structure, yoke 260 is parallel and wide with shutter substrate 230, and the thickness H of yoke 260 is littler than the width W size of yoke 260.
To this, in the electromagnetic driving optical shutter of the present invention, two coils are across rotor configuration, because the both ends of passing the yoke of two coils have determined to act on the magnetic force of rotor, so even the magnetic loss of this yoke and two mutual linking portions of coil is greatly also not big in a way the obstruction.Therefore, the sectional area of this part of yoke can dwindle, and has saved the part configuration space in addition of this electromagnetic driving optical shutter of formation on shutter substrate, can guarantee other pieces, for example sensor and open and close type lens cap etc. in addition part more configuration space is arranged.And size more than needed is arranged in the vertical direction of shutter substrate, therefore, the gauge of shutter substrate inner face direction can be thinner than vertical direction, so the space of configuration other pieces can further enlarge.
In the electromagnetic driving optical shutter of the invention described above, above-mentioned yoke is by each 1 parts and above-mentioned 1 parts that a pair of coil is linked mutually at least that pass above-mentioned a pair of coil respectively, adds up to 3 to constitute with upper-part.
Yoke so is divided into most parts, and the parts that are contained in the coil just needn't be crooked, can use punch process, improves other part precision.Simultaneously, yoke be divided into a plurality of parts also be more convenient for the assembling.
Simultaneously, electromagnetic driving optical shutter of the present invention, the part that links mutually with a pair of coil of above-mentioned yoke, set opening on the shutter substrate and extending.
A pair of coil respectively as far as possible near-earth be configured in the next door of rotor, and the opening established on the shutter substrate of the part that this a pair of coil is connected extends and constitutes, and therefore almost do not have magnetic loss, the magnetic force of coil can directly act on rotor.
Electromagnetic Drive of the present invention is fast, and the part of passing a pair of coil respectively of above-mentioned yoke preferably is made of multi-layer stacks sheet material.
Multilayer laminated sheet material has suppressed eddy current, has consequently more suppressed magnetic loss.
Description of drawings
Fig. 1 is the preceding oblique side's stereoscopic figure that possesses the camera of electromagnetic driving optical shutter embodiment of the present invention.
Fig. 2 is the side of the retreading stereoscopic figure of Fig. 1 camera.
Be loaded on the electromagnetic driving optical shutter exploded perspective view in the camera lens cylindrical shell in Fig. 3 is shown in Figure 1.
Be loaded on the electromagnetic driving optical shutter front appearance stereographic map in the camera lens cylindrical shell in Fig. 4 is shown in Figure 1.
Be loaded on the electromagnetic driving optical shutter front front view in the camera lens cylindrical shell in Fig. 5 is shown in Figure 1.
Fig. 6 is loaded on the basic block diagram of the electromagnetic driving optical shutter in the camera in the past.
Among the figure: 10-camera, 11-camera lens cylindrical shell, 11a-phtographic lens, 12-AF light projector window (the light projector window of focusing automatically), 13-AF are subjected to optical window (focusing is subjected to optical window automatically), and 14-view finder is to the thing window, 15-AE is subjected to optical window, 16-shutter release button, 17-flashlamp illuminating part, the visual window of 18-view finder, 100-electromagnetic driving optical shutter, 110-shutter substrate, 110a-slotted hole, 110b-the 1st recess, 110c-the 2nd recess, 110d-reflecting plate, 110e-opening, 120-blade, 121-the 1 blade parts, 121a-circular hole, 121b-slotted hole, 121c-projection, 122-the 2 blade parts, 122a-circular hole, 122b-slotted hole, 130-fast gate seat, 130a-recess, 130b-slotted hole, 130-square hole, 130d-protuberance, 130e-protuberance, 130f-opening, 140-rotor, 140a-N the utmost point, the 140b-S utmost point, 140c-rotating shaft, 140d-handle, 140e-pin, 151-the 1 coil, 152-the 2 coil, 160-yoke, 161-the 1 yoke parts, 1621-the 2 yoke parts, 1621a-circular hole, 1631-the 3 yoke parts, 1631a-circular hole, 1622-the 4 yoke parts, 1622a-circular hole, 1632-the 5 yoke parts, 1632a-circular hole, 170-pressing plate, 170a-circular hole, 170b-protuberance, 170c-protuberance, 180-blade sensor, 200-electromagnetic driving optical shutter, 230-shutter substrate, 240-rotor, 250-coil, 260-yoke.
Embodiment
Embodiments of the invention are described as follows:
Fig. 1 is the stereoscopic figure that sees from positive oblique upper that possesses the camera of electromagnetic driving optical shutter one embodiment of the present invention.
At the front of this camera 10 central portion, the barrel 11 of dress phtographic lens 11a in having.Automatically focusing (AF) is with the AF light projector window 12 of light-emitting component with accept the light that reflects from AF light projector window 12 projection lights and by subject for dress in the front upper part of this camera 10 has, and the AF of interior dress photo detector is subjected to optical window 13.
Observe view finder 14 and leaded light be subjected to optical window 15 in addition to the AE that adjusts the interior dress auto iris AE sensor that aperture uses in the front of this camera 10.
Simultaneously, also has shutter release button 16 above the camera 10 at this.
And then, above the camera 10, also have Pop-up flashlamp illuminating part 17 at this.This flashlamp illuminating part 17 general receipts are contained in the camera body, press its head and just can highlight, and begin simultaneously to flashlamp with main capacitance charging (not shown).In addition, when being in outstanding state, pressing its head and just receive and install in the camera body, the action of flash control circuit simultaneously also is stopped (not showing among the figure).
Fig. 2 is the stereoscopic figure that the back side of Fig. 1 camera is seen on tiltedly.
The visual window 18 of view finder is arranged at the back side of camera 10.
Be contained in the exploded perspective view of the electromagnetic driving optical shutter in the camera lens tube in Fig. 3 is shown in Figure 1, attachment screw is represented screw with the dot-and-dash line in the protruding hole of gate seat soon and is used for the relation between the protruding hole of the insertion screw of this screw retention among the figure.At this, claim axes of coordinates shown in Figure 3+directions X be front direction ,-directions X be back side direction ,+the Y direction be the top direction ,-Y is the below direction.
Shown in the upper right side of Fig. 3, shutter substrate 110 is arranged on this electromagnetic driving optical shutter.On this shutter substrate 110, central authorities are provided with the opening 110e of logical photography light beam.This shutter substrate 110, have the top that is positioned at opening 110e slotted hole 110a, be positioned at the 1st recess 110b and the 2nd recess 110c across front this slotted hole 110a, shutter substrate 110.Simultaneously, this shutter substrate 110 is positioned at the bottom of opening 110e, the reflecting plate 110d on shutter substrate 110 fronts in addition.
In the front of adjacent shutter substrate 110, blade 120 is arranged.This blade 120 is to be made of the 1st blade parts 121 and the 2nd blade parts 122.The 1st blade parts 121 have superposed circular hole 121a and slotted hole 121b, and the projection 121c that is positioned at the bottom is arranged.In addition, the 2nd blade parts 122 have superposed circular hole 122a and slotted hole 122b.
There is fast gate seat 130 front of adjacent blade 120.On this fast gate seat 130, central authorities are provided with the opening 130f by the photography light beam.This fast gate seat 130, have the top that is positioned at opening 130f, fast gate seat 130 the front recess 130a and be positioned at the slotted hole 130b on this recess 130a next door.In addition, this fast gate seat 130 is positioned at the square hole 130c of opening 130f bottom in addition.
And then this fast gate seat 130 also has two not shown protuberances at its back side, and one of them protuberance passes the circular hole 121a of the 1st blade parts 121, embeds the 1st recess 110b of shutter substrate 110, keeps the 1st blade parts 121 to turn freely simultaneously.Another protuberance passes the 2nd recess 110c of the circular hole 122a embedding shutter substrate of the 2nd blade parts 122, keeps the 2nd blade 122 to turn freely simultaneously.
In the front of adjacent fast gate seat 130, rotor 140 is arranged, these rotor 140 integral body present cylindrical.These rotor 140 parts are to make with permanent magnetism stone, along circumferential wall N utmost point 140a and S utmost point 140b are arranged.There is rotating shaft 140c at center at these rotor 140 fronts and the back side.Its rotating shaft 140c is supported by the recess 130a of above-mentioned fast gate seat 130 and the circular hole 170a of the pressing plate 170 shown in Fig. 3 lower left, can rotate freely.Simultaneously, the handle 140d that highlights from the back side in addition of this rotor 140 and the pin 140e that extends to back side direction from the front end of handle 140d.
The pin 140e of rotor 140 runs through slotted hole 130b, the slotted hole 121b of the 1st blade parts 121, the slotted hole 122b of the 2nd blade parts 122 and the slotted hole 110a of shutter substrate 110 of fast gate seat 130, along with the rotation of rotor 140, sell 140e simultaneously and in the scope of slotted hole 130b, move up and down.At this moment, as previously mentioned, on the 1st blade 121 flexible fulcrums that remain on rotationally with circular hole 121a, the 2nd blade 122 rotates on the fulcrum that remains on freely with circular hole 122a, so along with moving up and down of pin 140e, blade 120 just makes opening 110e and opening 130f open and close.
In the front of adjacent rotor 140, be the 1st coil 151 and the 2nd coil 152.These two the 1st coils 151 and the 2nd coil 152, compress with pressing plate 170 shown in Fig. 3 lower-left across rotor 140 configurations.
In the front of adjacent the 1st coil 151 and the 2nd coil 152, shown is yoke 160.It is constructed as follows this yoke 160: extension the 1st yoke parts 161 around fast gate seat 130 opening 130f are arranged, have pass the 1st coil 151 and near the 2nd yoke parts 1621 and the 3rd yoke parts 1631 that be shaped with punch process, that make by multilayer laminated sheet material of rotor 140, have and pass the 2nd coil 152 and near rotor 140, the 4th yoke parts 1622 and the 5th yoke parts 1632 that are shaped with punch process, make by multilayer laminated sheet material.These yoke parts by for example soft iron such, have because of external magnetic field magnetize easily and with the magnetization of this material of external magnetic field reversal of poles also rapidly the soft magnetic material of the magnetic of counter-rotating make.
Wherein, the 1st yoke parts 161 are along the height H of the optical axis direction width dimensions W greater than shutter substrate 110 inner face directions.
Simultaneously, the 2nd yoke parts 1621 are having circular hole 1621a near on the part of rotor 140, and the 3rd yoke parts 1631 are having circular hole 1631a near on the part of rotor 140.The 4th yoke parts 1622 are having circular hole 1622a near on the part of rotor 140.And the 5th yoke parts 1622 are having circular hole 1632a near on the part of rotor 140.
The protuberance 170b of pressing plate 170 passes circular hole 1621a and circular hole 1631a, embeds the protuberance 130d of fast gate seat 130, and the protuberance 170c of pressing plate 170 passes the protuberance 130e that circular hole 1622a and circular hole 1632a embed shutter substrate 130.
So, yoke 160 and the 1st coil 151 and the 2nd coil 152 are fixed by pressing plate 170.
The 1st coil 151 and 152 energisings of the 2nd coil produce magnetic force.Two ends by running through these two coils are near the yoke 160 of rotor 140, and by the side of this magnetic force guiding rotor 140, then rotor 140 rotates.
Fig. 4 is the stereoscopic figure that sees from the front oblique upper that is loaded on electromagnetic driving optical shutter in the barrel in the camera shown in Figure 1.
This electromagnetic driving optical shutter 100 is front strabismus stereograms that each other part of exploded perspective view shown in Figure 3 is assembled, and it is made up of shutter substrate 110, blade 120, fast gate seat 130, rotor the 140, the 1st coil the 151, the 2nd coil 152, yoke 160, pressing plate 170 and blade sensor 180 etc.But this figure is the constitutional diagram that blade 120 is opened, and does not show blade 120 on institute's diagrammatic sketch.
Fig. 5 is the front front view that is loaded on the electromagnetic driving optical shutter in the barrel in the camera shown in Figure 1.
This electromagnetic driving optical shutter 100, being the front front view that is assembled and taken off pressing plate 170 by each other part shown in Figure 3, is to be made of shutter substrate 110, blade 120, fast gate seat 130, rotor the 140, the 1st coil the 151, the 2nd coil 152, yoke 160, blade sensor 180.But this figure is that shutter substrate 110 is in the back of fast gate seat 130, the diagram that blade 120 is in open state, so do not show shutter substrate 110 and blade 120 on the figure.
The electromagnetic driving optical shutter that constitutes like this, the 1st coil 151 and the 2nd coil 152 have been disposed across rotor 140, the two ends of yoke 160 of running through these two coils are near rotor 140, thus the magnetic force that the energising back produces be directed to through yoke 160 near magnetic loss in the process at rotor 140 positions little.Therefore, that part has increased the driving force of rotor 140.
And the magnetic force that the 1st coil 151 and 152 energisings of the 2nd coil are produced is in the close process at rotor 140 positions of yoke 160 guiding, because yoke integral body is tabular, so magnetic force direction is altered course, magnetic loss is little.So, rotor 140 driving force become big.
And then, in the present embodiment, make by sheet material as the 2nd yoke parts the 1621, the 3rd yoke parts the 1631, the 4th yoke parts 1622 that impose on rotor 140 magneto motive yokes 160 and the 5th yoke parts 1632, be shaped through punch process.Therefore, dimensional accuracy is very high, and the gap between the both ends of yoke 160 and the rotor 140 is extremely narrow.So the magnetic loss between yoke 160 both ends and the rotor 140 also reduces, it is big that the driving force of rotor 140 becomes.
In addition, this electromagnetic driving optical shutter is that the both ends by the yoke 160 that runs through two coils determine its magnetic force, so have big to a certain degree magnetic loss also not have obstruction even walk around the 1st yoke parts 161 of the opening 130f of fast gate seat 130.Therefore, the cross section of the 1st yoke parts 161 can be reduced.So the height dimension H of the ratio vertical direction that can be the gauge W of shutter substrate inner face direction is thin, can guarantee to dispose part in addition beyond the part in addition that constitutes the electromagnetic drive mechanism that the on-off shutter blade uses with this, sufficient configuration space is arranged.As an example of other part of this kind, blade sensor 180 is housed in the present embodiment.
Moreover, in the present embodiment, the part that yoke 160 runs through the 1st coil 151 is the 2nd yoke parts 1621 and the 3rd yoke parts 1631, they are formed by the sheet material lamination, simultaneously, yoke 160 run through the part of the 2nd coil 152 be the 4th yoke parts 1622 and the 5th yoke parts 1632 they also form by the sheet material lamination.Therefore, the eddy current that yoke 160 runs through the part of these two coils is inhibited, and its result suppresses the magnetic force loss of this part.
As described above, can provide a kind of magnetic loss to obtain inhibition according to the present invention, and compress the electromagnetic driving optical shutter of the configuration space of part in addition that constitutes the electromagnetic drive mechanism that the on-off shutter blade uses.
Claims (2)
1. electromagnetic driving optical shutter comprises:
Offer the shutter substrate that can pass through the opening of light beam;
Can open and close the blade that blocks described opening freely;
Be installed on the described shutter substrate and be subjected to magneticaction and the rotor that rotates, make described blade to open and close;
Across a pair of coil described rotor setting and that when switching on, make described rotor rotation; With
Center on the yoke that described opening extends, runs through the close described rotor of described a pair of coil both sides and its two ends, it is characterized in that:
Described yoke by each 1 parts at least that run through described a pair of coil respectively with interconnective 1 parts of described a pair of coil, amounts to 3 with the upper-part formation, wherein:
Described yoke be the interconnective part of described a pair of coil around the structure that is located at the opening on the described shutter substrate and extends, and it is perpendicular to the height dimension of this shutter substrate direction gauge greater than direction in the described shutter substrate face.
2. electromagnetic driving optical shutter according to claim 1 is characterized in that:
The part that runs through described a pair of coil respectively of described yoke is made of the sheet material of multi-disc lamination.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001024025 | 2001-01-31 | ||
| JP200124025 | 2001-01-31 | ||
| JP2001362813A JP3983527B2 (en) | 2001-01-31 | 2001-11-28 | Electromagnetic drive shutter |
| JP2001362813 | 2001-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1369737A CN1369737A (en) | 2002-09-18 |
| CN1187646C true CN1187646C (en) | 2005-02-02 |
Family
ID=26608659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021031274A Expired - Fee Related CN1187646C (en) | 2001-01-31 | 2002-01-31 | Electromagnetic driving optical shutter |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3983527B2 (en) |
| CN (1) | CN1187646C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7922403B2 (en) * | 2006-02-28 | 2011-04-12 | Nidec Copal Corporation | Blade driving apparatus for cameras |
| CN101042515B (en) * | 2006-03-23 | 2010-05-12 | 亚洲光学股份有限公司 | Shutter mechanism used in camera |
| US7771132B2 (en) | 2006-08-04 | 2010-08-10 | Tamron Co., Ltd. | Shutter unit, shutter unit with built-in lens, and imaging apparatus |
| JP2008040114A (en) * | 2006-08-04 | 2008-02-21 | Tamron Co Ltd | Shutter device and imaging apparatus using the same |
| JP4869912B2 (en) * | 2006-12-27 | 2012-02-08 | セイコープレシジョン株式会社 | Coil bobbin, actuator, and blade drive device for camera |
| JP4906645B2 (en) | 2007-09-07 | 2012-03-28 | セイコープレシジョン株式会社 | Blade drive device |
| JP4906647B2 (en) * | 2007-09-07 | 2012-03-28 | セイコープレシジョン株式会社 | Blade drive device |
| JP4906646B2 (en) * | 2007-09-07 | 2012-03-28 | セイコープレシジョン株式会社 | Blade drive device |
| JP2016038505A (en) * | 2014-08-08 | 2016-03-22 | 惠州市大亜湾永昶電子工業有限公司 | Lens drive device |
| CN112335225B (en) * | 2019-11-22 | 2022-04-08 | 深圳市大疆创新科技有限公司 | Shutter and imaging device |
-
2001
- 2001-11-28 JP JP2001362813A patent/JP3983527B2/en not_active Expired - Fee Related
-
2002
- 2002-01-31 CN CNB021031274A patent/CN1187646C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1369737A (en) | 2002-09-18 |
| JP2002303914A (en) | 2002-10-18 |
| JP3983527B2 (en) | 2007-09-26 |
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Owner name: FUJI PHOTO FILM CO., LTD. Free format text: FORMER OWNER: FUJIFILM HOLDINGS CORP. Effective date: 20070817 |
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Owner name: FUJIFILM HOLDINGS CORP. Free format text: FORMER NAME OR ADDRESS: FUJI PHOTO FILM CO., LTD. |
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Address after: Tokyo, Japan Patentee after: Fujifilm Corp. Address before: Kanagawa County, Japan Patentee before: FUJIFILM Corp. |
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Effective date of registration: 20070817 Address after: Tokyo, Japan Patentee after: FUJIFILM Corp. Address before: Tokyo, Japan Patentee before: Fujifilm Corp. |
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Granted publication date: 20050202 Termination date: 20170131 |