CN107636529A - Actuator and driver element, focal-plane shutter, focal-plane shutter system, filming apparatus and electronic equipment with the actuator - Google Patents
Actuator and driver element, focal-plane shutter, focal-plane shutter system, filming apparatus and electronic equipment with the actuator Download PDFInfo
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- CN107636529A CN107636529A CN201680031643.XA CN201680031643A CN107636529A CN 107636529 A CN107636529 A CN 107636529A CN 201680031643 A CN201680031643 A CN 201680031643A CN 107636529 A CN107636529 A CN 107636529A
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- rotor
- yoke
- actuator
- focal
- yokes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/36—Sliding rigid plate
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- General Physics & Mathematics (AREA)
- Shutters For Cameras (AREA)
Abstract
Actuator (110) has：Multiple rotors (113a, 113b), there is the rotary shaft (J21, J22) being parallel to each other, circumferentially magnetized by different magnetic poles；Multiple yokes (112a, 112b), magnetic between rotor (113a, 113b) is linked, a closed magnetic circuit (MP2) is formed together with multiple rotors (113a, 113b)；And multiple coils (111a, 111b), it is arranged in each yoke of multiple yokes (112a, 112b), makes each yoke excitation of multiple yokes.An end and another end for each yoke (112a, 112b) each other from different rotors (113a, 113b) in opposite directions, each rotor (113a, 113b) is being clipped on the direction of the rotary shaft (J21, J22) of the rotor (113a, 113b) by two yokes (112a, 112b) linked with rotor (the 113a, 113b) magnetic.
Description
Technical field
The present invention relates to actuator and with the driver element of the actuator, focal-plane shutter, focal-plane shutter system, shooting dress
Put and electronic equipment.
Background technology
For the focal-plane shutter of filming apparatus, have：Bottom plate, provided with the opening for making to pass through for the light from subject；Leaf
Piece, it is open for being opened and closed；And the mechanism of driving blade.It is For example, Patent Document 1 discloses a kind of using with by line
Stator and the actuator of magnetized rotor that circle energization can be excited come the mechanism of driving blade.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2012-215658 publications
In recent years, the capturing element of increase filming apparatus is expected.Moreover, expect the shutter speed of lifting filming apparatus.
If increasing the capturing element of filming apparatus, the opening of bottom plate can also increase, so as to for being opened and closed opening for bottom plate
The blade of mouth can also increase.In order to drive big blade, actuator is preferably used for driving force (that is, the actuator of driving blade
Driving force) increase.In addition, in order to lift the translational speed of blade, and shutter speed is lifted, it is also contemplated that the drive of increase actuator
Power.
In order to increase the driving force of actuator, if the yoke that increase is excited to rotor and the coil electricity of actuator
(stator), then actuator can become big.In addition, if increasing yoke, then the diameter of the coil in yoke can also become big, from
And actuator can also become big.
Because actuator becomes big, therefore focal-plane shutter can also become big.
In addition, in order to increase the driving force of actuator, if the number of turn of increase coil, the inductance of coil can increase, therefore
Wait the time of actuator action can be elongated.
The present invention be in view of above-mentioned reason and propose, it is intended that supply is a kind of small-sized and can produce big driving
The actuator of power and driver element, focal-plane shutter, focal-plane shutter system, filming apparatus and electronic equipment with the actuator.
The content of the invention
The technical scheme solved the problems, such as
In order to achieve the above object, according to the actuator of the first viewpoint of the present invention, have：
Multiple rotors, there is the rotary shaft being parallel to each other, circumferentially magnetized by different magnetic poles；
Multiple yokes, magnetic between the rotor is linked, the magnetic circuit of a closure is formed together with multiple rotors；
And
Multiple coils, it is arranged in each yoke of multiple yokes, makes each yoke excitation of multiple yokes,
An end and another end for each yoke is opposite from the different rotors each other,
Each rotor is in two institutes linked on the direction of the rotary shaft of the rotor with the rotor magnetic
Yoke is stated to clip.
According to the structure, actuator rotates multiple rotors, so that by the flux interaction of multiple coil magnetizations in each turn
Son, therefore, actuator can produce big driving force.Furthermore it is possible to minimize actuator.
The end of the coil sides in the opposite face of each yoke the and described rotors of multiple yokes and the coil
The length of magnetic path between the end of surface side that the rotor is opposite can be with equal.
According to the structure, the magnetic line of force for acting on rotor is evenly distributed, therefore, no matter the rotation side of actuator rotor
To can produce constant driving force.
Actuator has two rotors and two yokes,
Described two yokes configure in opposite directions,
The end of a yoke in described two yokes and the end of another yoke can clip each rotor.
According to the structure, actuator makes two rotor rotations, so that by the flux interaction of two coil institute excitations in each
Rotor, therefore, actuator can produce big driving force.
Multiple coils are made up of a winding, can make week of each yoke of multiple yokes along the magnetic circuit
To excitation.
According to the structure, the circuit to coil supply electric power can be simplified.
Each coil of multiple coils can be made up of electrically separated winding.
According to this composition, the electric power of coil supply can be adjusted in each coil.
According to the driver element of the second viewpoint of the present invention, have：
Above-mentioned actuator；
Master gear, rotated centered on the rotary shaft parallel with the rotary shaft of the rotor；And
Pinion, be meshed, be separately positioned on each rotor with the master gear, using the rotary shaft of the rotor as
Central rotation.
According to this composition, driver element can big driving force make the rotation of target rotation.
According to the focal-plane shutter of the 3rd viewpoint of the present invention, have：
Bottom plate, there is opening；
Blade part, for being opened and closed the opening；
Driving part, the blade part is driven by rotating；And
Actuator, rotate the driving part,
The actuator, has：
Multiple rotors, there is the rotary shaft being parallel to each other, circumferentially magnetized by different magnetic poles；
Multiple yokes, magnetic between the rotor is linked, the magnetic circuit of a closure is formed together with multiple rotors；
And
Multiple coils, it is arranged in each yoke of multiple yokes, makes each yoke excitation of multiple yokes,
The driving part, has：
Master gear, link with the blade part, rotated centered on the rotary shaft parallel with the rotary shaft of the rotor；
And pinion, it is meshed, is separately positioned on each rotor, centered on the rotary shaft of the rotor with the master gear
Rotation,
An end and another end for each yoke is opposite from the different rotors each other,
Each rotor is in two institutes linked on the direction of the rotary shaft of the rotor with the rotor magnetic
Yoke is stated to clip.
According to the structure, the blade part actuator big and small-sized by driving force is driven, and therefore, focal-plane shutter can drive
Dynamic big blade part.In addition, focal-plane shutter can improve shutter speed.Furthermore it is possible to minimize focal-plane shutter.
In above-mentioned focal-plane shutter,
The end of the coil sides in the opposite face of each yoke the and described rotors of multiple yokes and the coil
The length of magnetic path between the end of surface side that the rotor is opposite it is equal
According to this composition, blade part is driven by constant driving force, and therefore, focal-plane shutter can be acted stably.
In above-mentioned focal-plane shutter,
The actuator has two rotors and two yokes,
Two yokes configure in opposite directions,
The end of a yoke in two yokes and the end of another yoke can clip each rotor.
In above-mentioned focal-plane shutter,
Multiple coils are made up of a winding, can make week of each yoke of multiple yokes along the magnetic circuit
To excitation.
In addition, in above-mentioned focal-plane shutter,
Each coil of multiple coils can be made up of electrically separated winding.
According to the focal-plane shutter system of the 4th viewpoint of the present invention, have：
Above-mentioned focal-plane shutter；And
Shutter control portion, it is multiple coil supply electric powers, controls the action of the blade part.
In above-mentioned focal-plane shutter system,
The shutter control portion, has：
Drive circuit, for driving the blade part；
Control circuit, for controlling the drive circuit；And
Power supply, to the drive circuit and the control circuit supply electric power,
The drive circuit can have：Switching circuit, the sense of current of multiple coils is flowed through for switching；With
And voltage-regulating circuit, for adjusting the size for the voltage being applied on multiple coils.
Above-mentioned focal-plane shutter is had according to the filming apparatus of the 5th viewpoint of the present invention.
Above-mentioned focal-plane shutter is had according to the electronic equipment of the 6th viewpoint of the present invention.
Invention effect
According to the present invention, actuator rotates multiple rotors, so that by the flux interaction of multiple coil institutes excitation in each
Rotor, it is, therefore, possible to provide the actuator that driving force is big and small-sized.Furthermore it is possible to provide with big blade part, and shutter
Fireballing small-sized focal-plane shutter.
Brief description of the drawings
Fig. 1 is the front view for showing focal-plane shutter according to embodiment 1 of the present invention.
Fig. 2 is to show the front view according to embodiment 1 of the present invention for removing the focal-plane shutter after keeper.
Fig. 3 shows the front view of actuator according to embodiment 1 of the present invention, driving part and blade part.
Fig. 4 A are the schematic diagrames for showing the rotor of actuator according to embodiment 1 of the present invention, yoke and coil.
Fig. 4 B are rotor, yoke, the schematic diagram of coil for showing the actuator according to comparative example.
Fig. 5 is show bottom plate according to embodiment 1 of the present invention, actuator, driving part and shutter control portion vertical
Body figure.
Fig. 6 is the figure for showing shutter control portion according to embodiment 1 of the present invention.
Fig. 7 is the figure for illustrating the control table in shutter control portion according to embodiment 1 of the present invention.
Fig. 8 A are the schematic diagrames for the action for showing focal-plane shutter according to embodiment 1 of the present invention.
Fig. 8 B are the schematic diagrames for the action for showing focal-plane shutter according to embodiment 1 of the present invention.
Fig. 9 A are the schematic diagrames for the action for showing focal-plane shutter according to embodiment 1 of the present invention.
Fig. 9 B are the schematic diagrames for the action for showing focal-plane shutter according to embodiment 1 of the present invention.
Figure 10 is the front view for showing actuator according to embodiment 2 of the present invention.
Figure 11 is the front view for showing focal-plane shutter according to embodiment 3 of the present invention.
Figure 12 is the figure for showing shutter control portion according to embodiment 4 of the present invention.
Figure 13 is the figure for illustrating the control table in shutter control portion according to embodiment 4 of the present invention.
Embodiment
(embodiment 1)
Referring to figs. 1 to Fig. 9 B, focal-plane shutter system according to the embodiment of the present invention is illustrated.
According to the focal-plane shutter system of present embodiment, have：Focal-plane shutter 1；And shutter control portion 3, for controlling
Focal-plane shutter 1.Focal-plane shutter system or focal-plane shutter 1 are equipped on the filming apparatus with taking lens etc., in electronic equipment.Example
Such as, filming apparatus can be digital camera, surveillance camera etc..In addition, for example, electronic equipment can have shoot function
The portable terminals such as smart mobile phone, on knee or notebook personal computer.
(focal-plane shutter)
First, focusing plane shutter 1 illustrates.
As shown in figure 1, focal-plane shutter 1 is square single curtain shutter.Focal-plane shutter 1 has：Bottom plate 210, blade part
140th, actuator 110, driving part 130, keeper 220.
Blade part 140 has：Arm 141,142；And shutter curtain 150, it is made up of blade 151,152,153,154.
Actuator 110 has：Rotor 113a, 113b；Yoke 112a, 112b；And coil 111a, 111b.Driving part 130 has：
Master gear 131；And pinion 133a, 133b.
(bottom plate)
Bottom plate 210 is formed as writing board shape.As shown in Figures 1 and 5, bottom plate 210 has：The opening 211 of rectangle；And circle
The through hole 135 of arc.Through hole 135 is available for the drive pin 132 of master gear 131 to insert.
The periphery of opening 211 on the face of the rear side of bottom plate 210 is provided with axle 143,144, the axle 143,144 with
The rotatably arm 141,142 of support blade part 140.It should be noted that the rear side of bottom plate 210 refers to, Fig. 1
The rear side of the bottom plate 210 shown, the face side of bottom plate 210 refer to, the face side of the bottom plate 210 shown in Fig. 1.
The periphery of opening 211 on the face of the rear side of bottom plate 210 is provided with retainer 212.For example, retainer 212
The movement of arm 142 is limited by electromagnetic force, and maintains the state of the masking of shutter curtain 150 opening 211 of blade part 140.
Axle 134 is provided with the face of the face side of bottom plate 210, the axle 134 is rotatably supported driving part
130 master gear 131.Axle 134 and the axle 143 being arranged on the face of rear side are arranged on coaxial.In the front of bottom plate 210
Actuator 110, driving part 130 and keeper 220 are configured with the face of side.
(blade part)
Blade part 140 is moved by the driving force of actuator 110, and is opened and closed the opening 211 of bottom plate 210.
As shown in Figures 1 and 3, blade part 140 has：Arm 141,142；And shutter curtain 150, by blade 151,
152nd, 153,154 form.Arm 141 is rotatably supported on the axle 143 of bottom plate 210.Arm 142 is with rotatable
Mode is supported on the axle 144 of bottom plate 210.
As shown in figure 3, it is connected to blade via pin 141a, 141b, 141c, pin (not shown) respectively in arm 141
151、152、153、154.In addition, arm 142 respectively via pin 142a, 142b, 142c, 142d be connected to blade 151,
152、153、154。
In addition, the through hole (not shown) of arm 141 is available for the drive pin 132 of master gear 131 to insert.Thus, arm 141
Linked together with master gear 131.Arm 141,142 rotates with the rotation of master gear 131.
As shown in Figures 2 and 3, shutter curtain 150 is made up of blade 151,152,153,154.
Each blade 151,152,153,154 links with arm 141,142 respectively.Blade 151,152,153,154 and arm
The rotation in portion 141,142 interlocks, so as to which when looking squarely focal-plane shutter 1, upward or lower section is moved.
Hereinafter, in order to make it easy to understand, the direction that blade 151,152,153,154 is moved is set to Z-direction, by upper direction
+Z direction is set to, lower direction is set into -Z direction illustrates.
Specifically, (+Z direction) is mobile upward by each blade 151,152,153,154 for shutter curtain 150, from weight
Overlapping state is changed into deployed condition, so as to the opening 211 of closed bottom 210.On the other hand, shutter curtain 150 passes through each blade
151st, 152,153,154 (-Z direction) movement downwards, is changed into overlap condition from deployed condition, so as to opening for open bottom plate 210
Mouth 211.
As shown in figure 1, the overlap condition of shutter curtain 150 refers to, in the periphery of the opening 211 of bottom plate 210, blade 151,
152nd, 153,154 state overlapped.When shutter curtain 150 is overlap condition, the opening 211 of bottom plate 210 opens.
As shown in Fig. 2 the deployed condition of shutter curtain 150 refers to, the state that blade 151,152,153,154 deploys.When fast
When door curtain 150 is deployed condition, the opening 211 of bottom plate 210 is covered by shutter curtain 150 and closed.
(actuator)
Actuator 110 is the driving source of focal-plane shutter 1.Actuator 110 is by rotary driving part 130 come moving blade portion
Part 140.As shown in Figures 1 and 2, actuator 110 has：Rotor 113a, 113b；Yoke 112a, 112b of elongate in shape；And
Coil 111a, 111b.Each coil 111a, 111b are separately positioned in yoke 112a, 112b, are excited respectively.
Actuator 110 makes the length direction of yoke 112a, 112b configure consistently with Z-direction in bottom plate 210 just
On the face of surface side.
(rotor)
Rotor 113a, 113b configure along Z-direction.Rotor 113a configurations are configured in-Z sides in +Z direction side, rotor 113b
To side.
Rotor 113a, 113b are cylinder.Rotor 113a, 113b by by N poles and S poles along perpendicular to the direction of central shaft
The permanent magnet for arranging and being magnetized is formed.That is, rotor 113a, 113b is magnetized by different magnetic poles in the circumferential.It is each to turn
Sub- 113a, 113b magnetic force according to caused by coil 111a, 111b, with parallel each of the central shaft of the axle 143 with bottom plate 210
Rotated centered on rotary shaft J21, J22.It should be noted that each rotor 113a, 113b are rotatably supported respectively
On the axle 222,223 of keeper 220.
In addition, as shown in figure 3, each rotor 113a, 113b be respectively arranged with driving part 130 pinion 133a,
133b.Pinion 133a rotates with rotor 113a and pinion 133b together with rotor 113b.Pinion 133a, 133b and drive
The master gear 131 of dynamic component 130 is meshed.Rotor 113a, 113b rotation by the pinion 133a of driving part 130,
133b and master gear 131 are transferred to blade part 140.Thus, blade part 140 moves.
(yoke)
As shown in Fig. 2 and Fig. 4 A, yoke 112a, 112b is formed as elongate in shape by magnetic materials such as iron.Yoke 112a,
112b length direction is along Z-direction.
Yoke 112a is provided with coil 111a.Yoke 112a is by coil 111a excitations.Yoke 112b is provided with coil
111b.Yoke 112b is by coil 111b excitations.
Yoke 112a, 112b configures opposite each other.In addition, an end P11 and magnetic on yoke 112a length direction
An end P21 on yoke 112b length direction on rotor 113a rotary shaft J21 direction with rotor 113a
In opposite directions, and rotor 113a is clipped.In addition, the length of another end P12 and yoke 112b on yoke 112a length direction
Another end P22 on direction is clipped opposite with rotor 113b on rotor 113b rotary shaft J22 direction
Rotor 113b.
Thus, two yokes 112a, 112b and two rotors 113a, 113b form a closed magnetic circuit MP2, so as to one
Actuator 110 can rotate two rotors 113a, 113b.
It should be noted that in present embodiment, when yoke 112a end P11 is excited as N poles, and yoke 112b
End P21 be excited for S poles when, rotor 113a rotates in the counterclockwise direction.When yoke 112a end P11 is excited as S poles,
And yoke 112b end P21 be excited for N poles when, rotor 113a is rotated in a clockwise direction.In addition, when yoke 112a end
Portion P12 is excited as N poles, and yoke 112b end P22 be excited for S poles when, rotor 113b is rotated in a clockwise direction.When
Yoke 112a end P12 is excited as S poles, and yoke 112b end P22 be excited for N poles when, rotor 113b is along the inverse time
Pin direction rotates.
Yoke 112a end P11 and yoke 112b end P21 clip rotor 113a, yoke 112a end P12 and
Yoke 112b end P22 clips rotor 113b, and therefore, the magnetic flux from each yoke 112a, 112b being excited is made respectively
For rotor 113a, 113b.That is, rotor 113a, 113b are respectively acting on by the magnetic flux of two coil 111a, 111b institute excitations.
Thus, the magnetic flux density for acting on each rotor 113a, 113b increases.
As described above, actuator 110 rotatable two rotors 113a, 113b, can increase act on each rotor 113a,
113b magnetic flux density, therefore big driving force can be produced.For example, each coil 111a, 111b magnetomotive force F are set to
F0, when magnetic conductance P is set to P0, due to being respectively arranged with coil 111a, 111b in each yoke 112a, 112b, therefore, magnetic circuit MP2
On magnetic flux density Φ be 2 × F0 × P0.Therefore, act on the magnetic flux density Φ of each rotor 113a, 113b magnetic flux for 2 ×
F0×P0。
Wherein, as comparative example, the magnetic flux that rotor is acted in the actuator of the yoke with conventional U-shaped is carried out
Explanation.
In a comparative example, as shown in Figure 4 B, by the actuator 1110 with rotor 113a and the actuating with rotor 113b
Device 1120 combines.
Actuator 1110 has：Rotor 113a, the yoke 1112 of U-shaped and coil 1111.Actuator 1120 has：Rotor
113b, the yoke 1122 of U-shaped, coil 1121.
It should be noted that the rotor 113a of the actuator 1110 and rotor 113b of actuator 1120 and actuator 110
Rotor 113a, 113b are identical.In addition, coil 111a, 111b of coil 1111, coil 1121 and actuator 110 number of turn N and
The material for forming these is identical.
The yoke 1112 of actuator 1110 has：Pin piece 1112a, 1112b；And connecting piece 1112c, link pin piece
A 1112a end and a pin piece 1112b end.Another of pin piece 1112a another end and pin piece 1112b
End clips rotor 113a.Thus, formed with magnetic circuit MP11 in actuator 1110.In addition, coil 1111 is arranged on pin piece
On 1112a.
The yoke 1122 of actuator 1120 is identical with the yoke 1112 of actuator 1110, has：Pin piece 1122a, 1122b；
And connecting piece 1122c.A pin piece 1122a end and a pin piece 1122b end clip rotor 113b.Thus, exist
Formed with magnetic circuit MP12 in actuator 1120.In addition, coil 1121 is arranged on pin piece 1122a.
It is transversal when length of magnetic path L and magnetic circuit in the magnetic circuit MP2 of actuator 110 and the magnetic circuit MP11 of actuator 1110
Area A and magnetic permeability mu are equal, and the magnetic in coil 111a, 111b of actuator 110 and the coil 1111 of actuator 1110 moves
When gesture F is equal, P=μ × A/L, therefore, the magnetic flux density Φ in magnetic circuit MP11 are F0 × P0.In addition, it is assumed that in magnetic circuit MP12
When magnetic flux density Φ is also identical with actuator 1110, its magnetic flux density Φ is also F0 × P0.
Therefore, the magnetic flux density of the rotor 113a of actuator 1110 and the rotor 113b of actuator 1120 magnetic flux is acted on
Φ is F0 × P0.
As described above, in the comparative example that actuator 1110 and actuator 1120 are combined, be respectively acting on rotor 113a and
The magnetic flux density Φ of rotor 113b magnetic flux is that the magnetic flux for the magnetic flux that each rotor 113a, 113b are acted in actuator 110 is close
Spend Φ half.
The magnetic flux density Φ of magnetic flux of the driving force of actuator to acting on rotor is proportional, and therefore, actuator 110 can
With with comparative example identical power consumption, produce 2 times of driving force of comparative example.
(coil)
Each coil 111a, 111b are separately positioned in yoke 112a, 112b.Coil 111a makes yoke 112a excitations.Line
Circle 111b makes yoke 112b excitations.
Coil 111a, 111b are made up of conductive materials such as copper.Each coil 111a, 111b are by electrically separated winding shape
Into.
In addition, as shown in figure 5, coil 111a is connected by connecting up LP11, LP12 and shutter control portion 3.Coil 111b leads to
Cross wiring LP21, LP22 and shutter control portion 3 connects.
By supplying electricity to coil 111a, coil 111b via wiring LP11, LP12, LP21, LP22 from shutter control portion 3
Power, so as to which yoke 112a, yoke 112b are excited respectively.
Wherein, each coil 111a, 111b position being separately positioned in yoke 112a, 112b are illustrated.
As shown in Figure 4 A, coil 111a, 111b is arranged in yoke 112a the face S11 and coil opposite with rotor 113a
The length of magnetic path in length of magnetic path L11, yoke 112a between 111a between the face S12 and coil 111a opposite with rotor 113b
Length of magnetic path L21 in L12, yoke 112b between the face S21 and coil 111b opposite with rotor 113a, and in yoke 112b
Length of magnetic path L22 between the face S22 and coil 111b that rotor 113b is opposite is equal (L11=L12=L21=L22).Its
In, the length of magnetic path L11 in yoke 112a between the face S11 and coil 111a opposite with rotor 113a refers to, face S11 coil
The length of magnetic path between the end of the end of 111a sides and coil 111a face S11 sides.On the length of magnetic path L12, L21, L22,
Also it is identical with length of magnetic path L11.
It should be noted that " equal " herein refers to, it is equal in predetermined error range.For example, error range can
To be set as ignoring the size of the difference of the direction of rotation according to rotor 113a, 113b.
Because the length of magnetic path L11, L12, L21, L22 are equal, therefore act on each rotor 113a, 113b magnetic line of force
It is evenly distributed, from regardless of whether rotor 113a, 113b direction of rotation, actuator 110 can produce constant driving force.
On the other hand, in the actuator 1110 as comparative example, it is provided with a pin piece 1112a of yoke 1112
Coil 1111, therefore the length of magnetic path between a face S111 and coil 1112 opposite with rotor 113a in yoke 1112
L111 is different from the length of magnetic path L112 in yoke 1112 between another face S112 that rotor 113a is opposite.Therefore, causing
In dynamic device 1110, the skewness of the rotor 113a magnetic line of force is acted on, it is difficult to produce stable driving force.As comparing
In the actuator 1120 of example, also identically with actuator 1110, it is difficult to produce stable driving force.
(driving part)
Driving part 130 is rotated by rotor 113a, 113b of actuator 110, so as to driving blade part 140.Such as Fig. 3
Shown, driving part 130 has：Master gear 131, pinion 133a and 133b.
As shown in figure 5, master gear 131 has：Patchhole 131a and drive pin 132.By the way that the axle 134 of bottom plate 210 is inserted
Enter into patchhole 131a, master gear 131 is pivotally supported on axle 134.Master gear 131 is with the rotor with actuator 110
Rotated centered on the parallel rotary shaft J1 of 113a, 113b rotary shaft J21, J22.In addition, master gear 131 and pinion 133a,
133b is meshed.
The drive pin 132 of master gear 131 is inserted into the through hole 135 of bottom plate 210, and is inserted into the insertion of arm 141
Kong Zhong.Thus, master gear 131 and arm 141 are linked.
Pinion 133a, 133b are sector.Each pinion 133a, 133b are meshed with master gear 131.
For example, each pinion 133a, 133b are separately positioned on rotor 113a, 113b by way of chimeric.Secondary tooth
Wheel 133a and rotor 113a is rotated centered on rotor 113a rotary shaft J21 together.Pinion 133b and rotor 113b are together
Rotated centered on rotor 113b rotary shaft J22.
According to these structures, when rotor 113a, 113b rotation of actuator 110, pinion 133a using rotary shaft J21 as
Central rotation, and pinion 133b is rotated centered on rotary shaft J22.Pinion 133a, 133b rotation are transferred to master gear
131.By the rotation of master gear 131, the drive pin 132 of master gear 131 is also rotated centered on rotary shaft J1, so as to driving
The arm 141 that pin 132 links rotates.By the rotation of arm 141, arm 142 also rotates.And then with the rotation of arm 141
Turn, blade 151,152,153,145 moves.
(keeper)
Keeper 220 is used to remain actuated device 110.Keeper 220 is fixed on the face of the face side of bottom plate 210.For example, protect
Gripping member 220 is formed by synthetic resin.
As shown in figure 5, keeper 220 has：Keeper body 220a and lid 220b.Set in keeper body 220a
Have：Axle 222, it is rotatably supported rotor 113a；And axle 223, it is rotatably supported rotor 113b.Lid
220b is fixed on keeper body 220a.
(shutter control portion)
Next, shutter control portion 3 is illustrated.
Shutter control portion 3 controls the action of blade part 140 to coil 111a, 111b supply electric power.As shown in fig. 6,
Shutter control portion 3 has battery 300, control circuit 310 and drive circuit 320.
(battery)
Battery 300 is to control circuit 310 and the supply electric power of drive circuit 320.For example, battery 300 is to the He of drive circuit 320
Control circuit 310 supplies 3.2V~2.2V voltage.
(drive circuit)
Drive circuit 320 is to coil 111a, 111b supply electric power, so as to driving blade part 140.Drive circuit 320 has
There are switching circuit 321,322 and voltage-regulating circuit 323,324.
The changeable sense of current for flowing through coil 111a of switching circuit 321.Switching circuit 322 is changeable to flow through coil
111b sense of current.Switching circuit 321 is to include four transistors Tr11, Tr12, Tr13, Tr14 bridge.Switching electricity
Road 322 is also the bridge for including four transistors Tr21, Tr22, Tr23, Tr24.
Wherein, in order to make it easy to understand, assuming when electric current flows to the right from coil 111a left side in figure 6, scheming
In 8A~Fig. 9 B, yoke 112a end P11 (+Z direction side) is excited as N poles, yoke 112a end P12 (-Z direction side)
It is excited as S poles.In addition, it is assumed that when electric current flows to the right from coil 111b left side in figure 6, in Fig. 8 A~Fig. 9 B
In, yoke 112b end P21 (+Z direction side) is excited as N poles, yoke 112b end P22 (-Z direction side) be excited for
S poles.
Voltage-regulating circuit 323,324 is used to adjust the size to each coil 111a, 111b voltage supplied.
Voltage-regulating circuit 323 is made up of resistance R11, R12 bleeder circuit being connected in series.Resistance R11 and resistance R12 it
Between caused voltage be supplied to switching circuit 321.Resistance R11 is variable resistor.In addition, voltage-regulating circuit 324 also with voltage
Adjustment circuit 323 in the same manner, is made up of resistance R21, R22 bleeder circuit being connected in series.Resistance R21 is variable resistor.Pass through
Adjust the resistance value of each resistance R11, R21 as variable resistor, the adjustable electricity for being supplied to each switching circuit 321,322
Pressure.
(control circuit)
Control circuit 310 is used to control drive circuit 320.Control circuit 310 has CPU (Cent
ralProcessingUnit：Central processing unit) and storage part.Control circuit 310 to perform by CPU by being stored in storage part
Program, so as to control respectively transistor Tr11, Tr12 of switching circuit 321,322, Tr13, Tr14, Tr21, Tr22, Tr23,
Resistance R11, R21 of Tr24 and voltage-regulating circuit 323,324 resistance value.
For example, the input unit of the digital camera of focal-plane shutter system of the control circuit 310 with being equipped with present embodiment
Connection (not shown).When the operation button of the input unit of digital camera is pressed, input unit exports to control circuit 310
Represent to start the commencing signal shot.When there is commencing signal input, control circuit 310 controls drive circuit 320.
For example, the storage part in control circuit 310 is stored with control table.Fig. 7 shows to be stored in the storage of control circuit 310
The control table in portion.The 1st row in Fig. 7 represent the action of blade part 140.In addition, the 2nd the~the 9 row of row in Fig. 7 represent switching
Transistor Tr11, Tr12, Tr13, Tr14, Tr21, Tr22, Tr23, Tr24 of circuit 321,322 ON-OFF ON-OFF
State.
When moving blade 151,152,153,154, make the state of shutter curtain 150 from overlap condition be changed into deployed condition when,
As shown in fig. 7, control circuit 310 makes transistor Tr11, Tr14 of switching circuit 321 and Tr22, Tr23 of switching circuit 321
It is changed into conducting state.In addition, control circuit 310 makes transistor Tr12, Tr13 and switching circuit 322 of switching circuit 321
Tr21, Tr24 are changed into cut-off state.
Thus, electric current flows to the right from coil 111a left side in figure 6, therefore, as shown in Fig. 8 A and Fig. 8 B, yoke
112a end P11 is excited to be excited as S poles for N poles, end P12.In addition, electric current is from coil 111b right side in figure 6
Flow to the left, therefore, as shown in Fig. 8 A and Fig. 8 B, end P21 is excited to be excited as N poles for S poles, end P22.
When yoke 112a, 112b is excited as described above, rotor 113a, 113b and pinion 133a, 133b edges
Counterclockwise rotates, therefore, as shown in Fig. 8 A and Fig. 8 B, master gear 131 be rotated in a clockwise direction (reference arrow AR11,
AR12、AR13).It is rotated in a clockwise direction by master gear 131, blade 151,152,153,154 is moved upward, so as to fast
Door curtain 150 is changed into deployed condition (reference arrow AR14) from overlap condition.
On the other hand, when moving blade 151,152,153,154, the state of shutter curtain 150 is become from deployed condition and attach most importance to
During overlapping state, as shown in fig. 7, control circuit 310 makes transistor Tr12, Tr13 and switching circuit 322 of switching circuit 321
Transistor Tr21, Tr24 are changed into conducting state.In addition, control circuit 310 make transistor Tr11, Tr14 of switching circuit 321 with
And transistor Tr22, Tr23 of switching circuit 322 are changed into cut-off state.
Thus, electric current is flowed to the left from coil 111a right side in figure 6, and therefore, yoke 112a end P11 is encouraged
Magnetic is S poles, and end P12 is excited as N poles.In addition, electric current flows to the right from coil 111b left side in figure 6, and therefore, magnetic
Yoke 112b end P21 is excited to be excited as S poles for N poles, end P22.
When yoke 112a, 112b is excited as described above, rotor 113a, 113b and pinion 133a, 133b edges
Be rotated clockwise, therefore, as shown in Fig. 9 A and Fig. 9 B, master gear 131 rotate in the counterclockwise direction (reference arrow AR21,
AR22、AR23).Rotated in the counterclockwise direction by master gear 131, blade 151,152,153,154 moves downwards, so as to fast
Door curtain 150 is changed into overlap condition (reference arrow AR24) from deployed condition.
As described above, shutter control portion 3 can act blade part 140.
As described above, actuator 110 can make two rotors 113a, 113b rotation, raising act on each rotor 113a,
113b magnetic flux density, so as to produce larger driving force.In addition, actuator 110 can rotate two in a magnetic circuit MP2
Rotor 113a, 113b, therefore it is changed into small-sized.For example, compared to the combination of actuator 1110 and actuator 1120 as comparative example,
Actuator 110 can realize the 2 of comparative example times of driving force with the erection space of the half of comparative example.
In addition, in actuator 110, the length of magnetic path L11, L12, L21, L22 are equal, therefore act on each rotor
113a, 113b magnetic line of force are evenly distributed.Thus, can be with no matter actuator 110 rotor 113a, 113b direction of rotation
Produce constant driving force.
Because the blade part 140 of focal-plane shutter 1 is by producing the actuator 110 of big driving force via driving part
130 and move, therefore, focal-plane shutter 1 can drive big blade part 140.And then focal-plane shutter 1 can improve shutter speed.
Further, since actuator 110 is miniaturized, therefore focal-plane shutter 1 is also changed into small-sized.Further, since pass through actuating
Device 110 is with constant driving force moving blade part 140, and therefore, focal-plane shutter stably acts.
In addition, shutter control portion 3 has voltage-regulating circuit 323,324, can adjust respectively be applied to each coil 111a,
Voltage on 111b, therefore the adjustable magnetic flux density Φ for acting on each rotor 113a, 113b.
(embodiment 2)
Reference picture 10, the actuator 4110 according to present embodiment is illustrated.
In embodiment 1, actuator 110 has two coils, yoke and a rotor respectively, but coil, yoke, rotor
Quantity is not limited to two.
As shown in Figure 10, actuator 4110 have three coil 4111a, 4111b, 4111c, three yoke 4112a,
4112b, 4112c and three rotors 4113a, 4113b, 4113c.
Each coil 4111a, 4111b, 4111c are separately positioned on yoke 4112a, 4112b, 4112c.
A yoke 4112a end and a yoke 4112b end clip rotor 4113a.In addition, yoke 4112b
Mono- end in another end and yoke 4112c clip rotor 4113b.In addition, yoke 4112c another end and yoke
4112a another end clips rotor 4113c clampings.Thus, yoke 4112a, 4112b, 4112c and rotor 4113a,
4113b, 4113c form a closed magnetic circuit MP4, actuator 4110 rotatable rotor 4113a, 4113b, 4113c.
In actuator 4110, by by the flux interaction of three coil 4112a, 4112b, 4112c excitations in each turn
Sub- 4113a, 4113b, 4113c.Thus, the magnetic flux density for acting on each rotor 4113a, 4113b, 4113c increases.
As described above, actuator 4110 rotatable three rotors 4113a, 4113b, 4113c, are acted on often so as to increase
Individual rotor 4113a, 4113b, 4113c magnetic flux density, therefore, identically with actuator 110, big driving force can be produced.
In addition, as shown in Figure 10, can be set respectively on each rotor 4113a, 4113b, 4113c pinion 4114a,
4114b、4114c.Each pinion 4114a, 4114b, 4114c using each rotor 4113a, 4113b, 4113c rotary shaft as
Central rotation.By setting the master gear (not shown) being meshed with each pinion 4114a, 4114b, 4114c, actuator
4110 can be big driving force rotate a target rotation.In addition, the actuator 110 and drive division of alternative embodiments 1
130, the actuator 4110 with pinion 4114a, 4114b, 4114c and master gear is arranged on focal-plane shutter 1.
(embodiment 3)
Reference picture 11, the focal-plane shutter system according to present embodiment is illustrated.
In embodiment 1, focal-plane shutter 1 is single curtain shutter, but the form of focal-plane shutter is not limited thereto.
Focal-plane shutter 2001 is had according to the focal-plane shutter system of present embodiment.Focal-plane shutter 2001 is that double curtain are fast
Door.
As shown in figure 11, focal-plane shutter 2001 has：Two blade units, by actuator 110, drive division 130, blade part
Part 140, keeper 220 are formed；And bottom plate 2210, there is opening 2211.It should be noted that in fig. 11, for the ease of
Understand, keeper 220 is not shown.
The shutter curtain 150 of the blade part 140 of one blade unit is configured at the top (+Z of opening 2211 with overlap condition
Direction).The shutter curtain 150 of the blade part 140 of another blade unit configures the lower section (- Z in opening 2211 with overlap condition
Direction).In addition, the periphery of the opening 2211 in bottom plate 2210, sets the stop of the movement of the arm 141 of restricted blade unit
Part 2212.
In addition, there is the blade part for being used for controlling each blade unit according to the focal-plane shutter system of present embodiment
The shutter control portion (not shown) of 140 action.The shutter control portion of present embodiment has the shutter control with embodiment 1
The identical drive circuit of portion 3 and control circuit.
In the present embodiment, by with overlap condition configuration curtain before the shutter curtain 150 of the lower section of opening 2211 is set to
2251, by with overlap condition configuration curtain 2252 after the shutter curtain 150 of the top of opening 2211 is set to.
In this case, the shutter control portion of present embodiment by the state of preceding curtain 2251 change into successively overlap condition,
Deployed condition, overlap condition.After the scheduled time, the shutter control portion of present embodiment changes the state of rear curtain 2252 successively
For overlap condition, deployed condition, overlap condition.Thus, the digital camera of the focal-plane shutter system with present embodiment can be with
During rear curtain 2252 is changed into deployed condition from overlap condition, the image of reference object is shot using capturing element.
(embodiment 4)
Reference picture 12 and Figure 13, the focal-plane shutter system according to present embodiment is illustrated.
In embodiment 1, coil 111a, 111b are formed by electrically separated winding, but coil 111a, 111b can also be by
One winding is formed.
Shutter control portion 3003 is had according to the focal-plane shutter system of present embodiment, to replace according to embodiment 1
The shutter control portion 3 of focal-plane shutter system.In addition, caused from along the identical direction of central shaft (+Z direction or -Z direction)
When coil 111a, the coil 111b of dynamic device 110, winding direction is opposite.Thus, coil 111a, coil 111b and the phase of embodiment 1
Same ground, yoke 112a, the 112b excitation of actuator 110 can be made.
Other compositions are identical with the focal-plane shutter system according to embodiment 1.
As shown in figure 12, shutter control portion 3003 has：Drive circuit 3320, there is battery 300 and switching circuit 3321；
And control circuit 3310.Switching circuit 3321 is connected with forming coil 111a, 111b winding.Other are formed and embodiment
1 switching circuit 321 is identical.
Control circuit 3310 identically with the control circuit 310 of embodiment 1, has CPU and storage part.Control circuit
310 to perform by CPU by being stored in the program of storage part, so as to control respectively the transistor Tr31 of switching circuit 3321,
Tr32、Tr33、Tr34。
Control table is stored with the storage part of control circuit 3310.Figure 13 shows to be stored in the storage part of control circuit 3310
Control table.The 1st row in Figure 13 represent the action of blade part 140.In addition, the 2nd the~the 5 row of row in Figure 13 represent switching
Transistor Tr31, Tr32, Tr33, Tr34 of circuit 3321 ON-OFF state.
When moving blade 151,152,153,154, make the state of shutter curtain 150 from overlap condition be changed into deployed condition when,
As shown in figure 13, control circuit 3310 makes transistor Tr31, Tr34 be changed into conducting state, makes transistor Tr32, Tr33 be changed into cutting
Only state.Thus, electric current flows to the right from coil 111a left side in fig. 12, therefore, as shown in Fig. 8 A and Fig. 8 B, yoke
112a end P11 is excited to be excited as S poles for N poles, end P12.In addition, electric current is from coil 111b right side in fig. 12
Flow to the left, therefore, as shown in Fig. 8 A and Fig. 8 B, end P21 is excited to be excited as N poles for S poles, end P22.
When yoke 112a, 112b is excited as described above, rotor 113a, 113b and pinion 133a, 133b edges
Counterclockwise rotates, therefore, as shown in Fig. 8 A and Fig. 8 B, master gear 131 be rotated in a clockwise direction (reference arrow AR11,
AR12、AR13).It is rotated in a clockwise direction by master gear 131, blade 151,152,153,154 is moved upward, so as to fast
Door curtain 150 is changed into deployed condition (reference arrow AR14) from overlap condition.
On the other hand, when moving blade 151,152,153,154, the state of shutter curtain 150 is become from deployed condition and attach most importance to
During overlapping state, as shown in figure 13, control circuit 3310 makes transistor Tr32, Tr33 be changed into conducting state, make transistor Tr31,
Tr34 is changed into cut-off state.Thus, electric current flows to the left from coil 111a right side in fig. 12, therefore, yoke 112a's
End P11 is excited to be excited as N poles for S poles, end P12.In addition, in fig. 12 electric current from coil 111b left side to the right
Flowing, therefore, yoke 112b end P21 is excited to be excited as S poles for N poles, end P22.
When yoke 112a, 112b is excited as described above, rotor 113a, 113b and pinion 133a, 133b edges
Be rotated clockwise, therefore, as shown in Fig. 9 A and Fig. 9 B, master gear 131 rotate in the counterclockwise direction (reference arrow AR21,
AR22、AR23).Rotated in the counterclockwise direction by master gear 131, blade 151,152,153,154 moves downwards, so as to fast
Door curtain 150 is changed into overlap condition (reference arrow AR24) from deployed condition.
As described above, control circuit 3310 can act blade part 140.In addition, drive circuit 3320 and control electricity
Road 3310 is simplified, therefore can minimize shutter control portion 3003.
Embodiments of the present invention are explained above, but the invention is not limited in above-mentioned embodiment, are not departing from this
In the range of the purport of invention, various changes can be carried out.
In embodiment 1, shutter curtain 150 is made up of 4 blades 151,152,153,154, but the piece number of blade is not
4 are confined to, for example, the piece number of blade can be 3 or 5.
In embodiment 1 and embodiment 3, focal-plane shutter 1,2001 is opened when shooting standby with opening 211,2211
Always-on action, but focal-plane shutter 1,2001 can also shoot it is standby when with opening 211,2211 close normally closed pattern
Action.
The application is based on No. 2015-074480 proposition of Japanese Patent application Patent filed in 31 days March in 2015.By day
Entire disclosure, claims and the accompanying drawing of this special permission application Patent 2015-074480 are incorporated herein by reference.
The explanation of reference
1、2001：Focal-plane shutter
3、3003：Shutter control portion
110、4110：Actuator
111a、111b、4111a、4111b、4111c：Coil
112a、112b、4112a、4112b、4112c：Yoke
113a、113b、4113a、4113b、4113c：Rotor
130：Driving part
131：Master gear
131a：Patchhole
132：Drive pin
133a、133b、4114a、4114b、4114c：Pinion
134、143、144、222、223：Axle
135：Through hole
140：Blade part
141、142：Arm
141a、141b、141c、142a、142b、142c、142d：Pin
150：Shutter curtain
151、152、153、154：Blade
210、2210：Bottom plate
211、2211：Opening
212、2212：Retainer
300：Battery
310、3310：Control circuit
320、3320：Drive circuit
321、322、3321：Switching circuit
323、324：Voltage-regulating circuit
2251：Preceding curtain
2252：Curtain afterwards
J1、J21、J22：Rotary shaft
L11、L12、L13、L14、L111、L112：The length of magnetic path
LP11、LP12、LP21、LP22：Wiring
MP11、MP12、MP2：Magnetic circuit
P11、P12、P21、P22：End
R11、R12、R21、R22：Resistance
S11、S12、S21、S22、S111、S112：Face
Tr11、Tr12、Tr13、Tr14、Tr21、Tr22、Tr23、Tr24、Tr31、Tr32、Tr33、Tr34：Transistor
Claims (15)
1. a kind of actuator, wherein, have：
Multiple rotors, there is the rotary shaft being parallel to each other, circumferentially magnetized by different magnetic poles；
Multiple yokes, magnetic between the rotor is linked, the magnetic circuit of a closure is formed together with multiple rotors；And
Multiple coils, it is arranged in each yoke of multiple yokes, makes each yoke excitation of multiple yokes,
An end and another end for each yoke is opposite from the different rotors each other,
Each rotor is in two magnetic linked on the direction of the rotary shaft of the rotor with the rotor magnetic
Yoke clips.
2. actuator as claimed in claim 1, wherein,
The end of the coil sides in the opposite face of each yoke the and described rotors of multiple yokes and the coil and
The length of magnetic path between the end of the opposite surface side of the rotor is equal.
3. actuator as claimed in claim 1 or 2, wherein,
With two rotors and two yokes,
Described two yokes configure in opposite directions,
The end of a yoke and the end of another yoke in described two yokes clip each rotor.
4. actuator as claimed any one in claims 1 to 3, wherein,
Multiple coils are made up of a winding, make each yoke of multiple yokes along the circumferential excitation of the magnetic circuit.
5. actuator as claimed any one in claims 1 to 3, wherein,
Each coil of multiple coils is made up of electrically separated winding.
6. a kind of driver element, wherein, have：
Actuator any one of claim 1 to 5；
Master gear, rotated centered on the rotary shaft parallel with the rotary shaft of the rotor；And
Pinion, it is meshed, is separately positioned on each rotor, centered on the rotary shaft of the rotor with the master gear
Rotation.
7. a kind of focal-plane shutter, wherein, have：
Bottom plate, there is opening；
Blade part, for being opened and closed the opening；
Driving part, the blade part is driven by rotating；And
Actuator, rotate the driving part,
The actuator, has：
Multiple rotors, there is the rotary shaft being parallel to each other, circumferentially magnetized by different magnetic poles；
Multiple yokes, magnetic between the rotor is linked, the magnetic circuit of a closure is formed together with multiple rotors；And
Multiple coils, it is arranged in each yoke of multiple yokes, makes each yoke excitation of multiple yokes,
The driving part, has：
Master gear, link with the blade part, rotated centered on the rotary shaft parallel with the rotary shaft of the rotor；And
Pinion, it is meshed with the master gear, is separately positioned on each rotor, is revolved centered on the rotary shaft of the rotor
Turn,
An end and another end for each yoke is opposite from the different rotors each other,
Each rotor is in two magnetic linked on the direction of the rotary shaft of the rotor with the rotor magnetic
Yoke clips.
8. focal-plane shutter as claimed in claim 7, wherein,
The end of the coil sides in the opposite face of each yoke the and described rotors of multiple yokes and the coil and
The length of magnetic path between the end of the opposite surface side of the rotor is equal.
9. focal-plane shutter as claimed in claim 7 or 8, wherein,
The actuator has two rotors and two yokes,
Two yokes configure in opposite directions,
The end of a yoke and the end of another yoke in two yokes clip each rotor.
10. the focal-plane shutter as any one of claim 7 to 9, wherein,
Multiple coils are made up of a winding, make each yoke of multiple yokes along the circumferential excitation of the magnetic circuit.
11. the focal-plane shutter as any one of claim 7 to 9, wherein,
Each coil of multiple coils is made up of electrically separated winding.
12. a kind of focal-plane shutter system, wherein, have：
Focal-plane shutter any one of claim 7 to 11；And
Shutter control portion, to multiple coil supply electric powers, control the action of the blade part.
13. focal-plane shutter system as claimed in claim 12, wherein,
The shutter control portion, has：
Drive circuit, for driving the blade part；
Control circuit, for controlling the drive circuit；And
Power supply, to the drive circuit and the control circuit supply electric power,
The drive circuit has：Switching circuit, the sense of current of multiple coils is flowed through for switching；And voltage is adjusted
Whole circuit, for adjusting the size for the voltage being applied on multiple coils.
14. a kind of filming apparatus, wherein,
With the focal-plane shutter any one of claim 7 to 11.
15. a kind of electronic equipment, wherein,
With the focal-plane shutter any one of claim 7 to 11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-074480 | 2015-03-31 | ||
| JP2015074480A JP6407787B2 (en) | 2015-03-31 | 2015-03-31 | Camera focal plane shutter, camera focal plane shutter system, and camera with camera focal plane shutter |
| PCT/JP2016/059610 WO2016158742A1 (en) | 2015-03-31 | 2016-03-25 | Actuator, drive unit comprising same, focal plane shutter, focal plane shutter system, image capture device, and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107636529A true CN107636529A (en) | 2018-01-26 |
| CN107636529B CN107636529B (en) | 2021-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680031643.XA Active CN107636529B (en) | 2015-03-31 | 2016-03-25 | Drive unit with actuator, focal plane shutter system, photographing device, and electronic apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6407787B2 (en) |
| CN (1) | CN107636529B (en) |
| WO (1) | WO2016158742A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6605433B2 (en) * | 2016-12-15 | 2019-11-13 | 日本電産コパル株式会社 | Blade driving device, imaging device including the blade driving device, and actuator |
| JP2019045539A (en) * | 2017-08-30 | 2019-03-22 | 日本電産コパル株式会社 | Focal plane shutter and imaging apparatus |
| JP7401379B2 (en) | 2020-03-30 | 2023-12-19 | ニデックプレシジョン株式会社 | Focal plane shutter and imaging device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03500933A (en) * | 1988-04-21 | 1991-02-28 | イーストマン・コダック・カンパニー | Electromagnetic shutter device |
| JPH05257051A (en) * | 1992-03-12 | 1993-10-08 | Nikon Corp | Driving device |
| CN101796707A (en) * | 2007-09-11 | 2010-08-04 | 大金工业株式会社 | Axial-gap rotary electric machine and rotary drive |
| WO2014208120A1 (en) * | 2013-06-25 | 2014-12-31 | セイコープレシジョン株式会社 | Focal-plane shutter, optical device, and method for adjusting current for focal-plane shutter |
-
2015
- 2015-03-31 JP JP2015074480A patent/JP6407787B2/en active Active
-
2016
- 2016-03-25 CN CN201680031643.XA patent/CN107636529B/en active Active
- 2016-03-25 WO PCT/JP2016/059610 patent/WO2016158742A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03500933A (en) * | 1988-04-21 | 1991-02-28 | イーストマン・コダック・カンパニー | Electromagnetic shutter device |
| JPH05257051A (en) * | 1992-03-12 | 1993-10-08 | Nikon Corp | Driving device |
| CN101796707A (en) * | 2007-09-11 | 2010-08-04 | 大金工业株式会社 | Axial-gap rotary electric machine and rotary drive |
| WO2014208120A1 (en) * | 2013-06-25 | 2014-12-31 | セイコープレシジョン株式会社 | Focal-plane shutter, optical device, and method for adjusting current for focal-plane shutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107636529B (en) | 2021-03-05 |
| WO2016158742A1 (en) | 2016-10-06 |
| JP6407787B2 (en) | 2018-10-17 |
| JP2016194605A (en) | 2016-11-17 |
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