JP2015075644A - Tremor correction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tremor correction device that has an excellent optical performance.SOLUTION: An image tremor correction device includes: a correction optical system for correcting an image tremor; a drive part that drives the correction optical system; a determination part that determines whether to correct the image tremor; a control part that controls the drive part; and a determination part that determines whether a mounted camera is a camera body of a first category or a second category, using a signal from a mounted camera body. When it is not determined by the determination part that the image tremor is corrected, if the mounted camera body is the camera body of the first category, the control part performs a first control to retain a position of the correction optical system at a prescribed position after a photograph operation by a photographer is performed, and if the mounted camera body is the camera body of the second category, the control part performs a second control to retain the position of the correction optical system at a prescribed position prior to the photograph operation by the photographer.

Description

  The present invention relates to a shake correction device provided in a lens barrel of an imaging device such as a camera.

  2. Description of the Related Art Conventionally, there is a lens barrel provided with a shake correction device that can perform framing without giving a sense of incongruity to a photographer (see, for example, Patent Document 1).

JP-A-11-64907

  It is an object of the present invention to provide a shake correction apparatus having even better optical performance.

  The present invention solves the above problems by the following means. That is, the invention of claim 1 is a correction optical system movable to correct image blur, a drive unit that drives the correction optical system, and a determination unit that determines whether to correct the image blur. A control unit that corrects the image blur by controlling the driving unit when the determination unit determines to correct the image blur, a receiving unit that receives a signal from a mounted camera body, and the receiving unit A determination unit that determines whether the attached camera body is a first type camera body or a second type camera body different from the first type camera body using the received signal; And the control unit determines that the mounted camera body is the first type camera body when the determination unit has not determined to correct image blur. At the time, after the photographing operation by the photographer, the first control for holding the position of the correction optical system at a predetermined position is performed, and the determination unit determines that the mounted camera body is the second type camera body. In this case, the image blur correction apparatus is configured to perform a second control for holding the position of the correction optical system at a predetermined position before the photographing operation by the photographer.

  The invention according to claim 2 is the image blur correction apparatus according to claim 1, wherein the determination unit is not determined to correct image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is the first type of camera body, the receiving unit receives a signal corresponding to the shooting operation by the photographer, and the control unit receives a signal corresponding to the shooting operation by the photographer. The image blur correction apparatus is characterized in that the correction optical system is not controlled before reception.

  According to a third aspect of the present invention, in the image blur correction device according to the second aspect, the determination unit is not determined to correct image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is the first type, the receiving unit receives a signal corresponding to the end of shooting from the attached camera body, and the control unit is a signal corresponding to the end of shooting. After the image is received, the control of the correction optical system is terminated.

  The invention of claim 4 is the image blur correction apparatus according to any one of claims 1 to 3, wherein the determination unit is not determined to correct the image blur, and the determination is made. The receiving unit receives a first trigger signal from the attached camera body after powering on the camera body when the attached camera body is determined to be the second type camera body. In the image blur correction apparatus, the control unit performs the second control after receiving the first trigger signal.

  According to a fifth aspect of the present invention, in the image blur correction apparatus according to the fourth aspect, the determination unit is not determined to correct the image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is the second type of camera body, the receiving unit does not receive a signal corresponding to a shooting operation by the photographer.

  The invention according to claim 6 is the image blur correction apparatus according to claim 5, wherein the determination unit is not determined to correct the image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is the second type, the control unit performs the second control until the camera body is turned off.

  A seventh aspect of the present invention is the image shake correction apparatus according to any one of the first to sixth aspects, wherein the control unit is configured to drive the correction optical system at a driving center in the first control. The control center of the correction optical system, the position of the correction optical system before the first control is started, and the position of the correction optical system before the first control is started. The correction optical system is held at any position on the drive center side, and in the second control, the drive center of the correction optical system, the control center of the correction optical system, and the second control before the second control is started The correction optical system is held at any one of a position of the correction optical system and a position closer to the drive center of the correction optical system than the position of the correction optical system before the second control is started. Is an image blur correction apparatus.

The invention according to claim 8 is a correction optical system movable to correct image blur, a drive unit that drives the correction optical system, a determination unit that determines whether or not to correct the image blur, When the determination unit determines to correct the image blur, a control unit that corrects the image blur by controlling the drive unit, a receiving unit that receives a signal from the mounted camera body, and the receiving unit A determination unit that determines whether the mounted camera body is a first type camera body or a second type camera body different from the first type camera body using the signal. When the determination unit determines that the mounted camera body is the first type of camera body when the determination unit has not determined to correct image blur, the control unit After the live view start operation by the user, third control is performed to hold the position of the correction optical system at a predetermined position, and the determination unit determines that the mounted camera body is the second type camera body. The shake correction apparatus is characterized in that a fourth control is performed to hold the position of the correction optical system at a predetermined position before the live view start operation by the photographer.

  The invention of claim 9 is the image blur correction apparatus according to claim 8, wherein the determination unit is not determined to correct the image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is the first type, the receiving unit receives a signal corresponding to a live view start operation by the photographer, and the control unit starts a live view by the photographer. The image blur correction apparatus is characterized in that the correction optical system is not controlled before receiving a signal corresponding to an operation.

  The invention of claim 10 is the image blur correction apparatus according to claim 9, wherein the determination unit is not determined to correct the image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is the first type, the receiving unit receives a signal corresponding to the end of the live view from the mounted camera body, and the control unit ends the live view. The image blur correction apparatus is characterized in that the control of the correction optical system is terminated after receiving a signal corresponding to.

  The invention of claim 11 is the image blur correction apparatus according to any one of claims 8 to 10, wherein the determination unit is not determined to correct the image blur, and the determination is made. The receiving unit receives a first trigger signal from the attached camera body after powering on the camera body when the attached camera body is determined to be the second type camera body. In the image blur correction apparatus, the control unit performs the fourth control after receiving the first trigger signal.

  According to a twelfth aspect of the present invention, in the image blur correction device according to the eleventh aspect, the determination unit is not determined to correct the image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is the second type of camera body, the receiving unit does not receive a signal corresponding to a live view start operation by the photographer.

  The invention of claim 13 is the image blur correction apparatus according to claim 12, wherein the determination unit is not determined to correct the image blur, and the camera body mounted by the determination unit is not determined. When it is determined that the camera body is of the second type, the control unit performs the fourth control until the camera body is turned off.

  The invention according to a fourteenth aspect is the image shake correction apparatus according to any one of the eighth to thirteenth aspects, wherein the control unit is configured to drive the correction optical system at a driving center in the third control, The control center of the correction optical system, the position of the correction optical system before the third control is started, and the position of the correction optical system before the third control is started The correction optical system is held at any position on the drive center side, and in the fourth control, the drive center of the correction optical system, the control center of the correction optical system, and the fourth control before the fourth control is started The correction optical system is held at any one of a position of the correction optical system and a position closer to the driving center of the correction optical system than the position of the correction optical system before the fourth control is started. Is an image blur correction apparatus.

  A fifteenth aspect of the invention is the image blur correction apparatus according to any one of the first to fourteenth aspects, further comprising a holding member that holds the correction optical system in a predetermined position. An image shake correction apparatus.

  According to the present invention, it is possible to provide a shake correction apparatus having even better optical performance.

1 is a block diagram showing a configuration of a shake correction apparatus according to a first embodiment, and shows a state where a lens barrel provided with the shake correction apparatus is attached to a camera body. 6 is a timing chart showing a state of a shake correction mode selector and states of a shake correction mode switch a and a shake correction mode switch b corresponding to the state. It is a schematic diagram which shows the structure of the support part of a correction lens. 6 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the first embodiment is in a state where shake correction is on, and shows a case where the lens barrel is attached to the first type camera body. Yes. 6 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the first embodiment is in a state where shake correction is on, and shows a case where the lens barrel is mounted on a second type camera body. Yes. 5 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the first embodiment is in a state where shake correction is off, and shows a case where the lens barrel is attached to a first type camera body. Yes. 6 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the first embodiment is in a shake correction off state, and shows a case where the lens barrel is attached to the second type camera body. Yes. FIG. 10 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the second embodiment is in a shake correction ON state, and shows a case where the lens barrel is attached to the first type camera body. Yes. FIG. 10 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the second embodiment is in a state where shake correction is on, and shows a case where the lens barrel is attached to a second type camera body. Yes. FIG. 10 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the second embodiment is in a shake correction off state, and shows a case where the lens barrel is attached to a first type camera body. Yes. FIG. 10 is a time chart showing control of the correction lens when the shake correction mode selector of the lens barrel according to the second embodiment is in a shake correction off state, and shows a case where the lens barrel is attached to a second type camera body. Yes. It is a time chart which shows the lens-barrel control which concerns on the modification of 1st Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram illustrating a configuration of a shake correction apparatus according to the first embodiment, and illustrates a state in which a lens barrel including the shake correction apparatus is attached to a camera body. In the present embodiment, a case where the lens barrel is attached to the camera body of a digital single lens reflex camera will be described as an example.

  As shown in FIG. 1, a camera body 3 of a digital single-lens reflex camera 1 (hereinafter abbreviated as “camera 1”) is provided with a body-side controller 5 that controls all operations on the camera body 3 side. The body-side control unit 5 includes a half-press switch 9 that is turned on when the release button 7 is half-pressed, a full-press switch 11 that is turned on when the release button 7 is fully pressed, and a power-on operation in the on state. The main switch 13 is connected to prohibit almost all camera body 3 operations in the off state. Furthermore, a live view switch 15 for operating the live view in the on state is connected to the body side control unit 5.

  The body-side control unit 5 can recognize the states of the half-press switch 9, the full-press switch 11, the main switch 13, and the live view switch 15. In addition, the lens barrel 18 communicates with the lens barrel 18 via the inter-lens communication circuit 17. In addition, the camera body 3 includes a shutter mechanism 19 and is controlled by the body-side control unit 5 using a drive circuit according to a known technique. Further, a power source 21 for operating each circuit and supplying the lens barrel 18 and other electrical circuits are provided. In addition, a storage unit 23 is provided for storing the photographed image.

  As shown in FIG. 1, the lens barrel 18 is attached to the camera body 3 of the camera 1. The lens barrel 18 is provided with a photographing optical system 27. The photographic optical system 27 includes lens groups 28, 29, and 30 along the optical axis L in order from the subject side (left side of the drawing in FIG. 1). Among these lens groups 28, 29, and 30, the lens group 29 is a lens for correcting image blur by moving in a direction perpendicular to the optical axis L (hereinafter referred to as a correction lens 29). . The correction lens 29 is supported by the support portion 33 so as to be able to move in a direction perpendicular to the optical axis L. Light from a subject (not shown) that has passed through the photographing optical system 27 including these lens groups 28, 29, and 30 forms an image on an image sensor (not shown) provided in the camera body 3. The image sensor uses a CCD or a CMOS.

  As shown in FIG. 1, the lens barrel 18 is provided with a shake correction device 35. The correction device 35 includes a correction lens 29, a shake detection circuit 37, a lens side control unit 39, a correction lens position detection circuit 41, a correction lens drive circuit 43, a shake correction mode selector 45, and an inter-body communication circuit 51. And a determination unit 61 for determining the type of camera body to be mounted.

  The shake detection circuit 37 detects a shake that has occurred in the lens barrel 18. The shake detection circuit 37 includes, for example, two angular velocity sensors (not shown). One angular velocity sensor detects an angular velocity in the yawing direction, and the other angular velocity sensor detects an angular velocity in the pitching direction. These detected angular velocities are output as shake signals and input to the lens side control unit 39.

  The correction lens position detection circuit 41 is a circuit for detecting the position of the correction lens 29. The correction lens position detection circuit 41 is a position sensor including, for example, a light emitting element (not shown) and a light receiving element (not shown). The position information of the correction lens 29 detected by the correction lens position detection circuit 41 is the lens. This is fed back to the side control unit 39.

  The correction lens drive circuit 43 is a circuit for driving the correction lens 29 during the shake correction operation. The lens-side control unit 39 calculates the movement target position of the correction lens 29 based on the shake signal from the shake detection circuit 37 and the position information of the correction lens 29 from the correction lens position detection circuit 41, and the correction lens drive circuit 43. The correction lens 29 is instructed to move to the movement target position. The correction lens driving circuit 43 drives a voice coil motor (not shown) based on an instruction from the lens side control unit 39 to move the correction lens 29 to a target position. Further, as will be described later, the correction lens drive circuit 43 drives the correction lens 29 to a predetermined position and holds the position when the correction lens 29 is held at a predetermined position under a predetermined condition.

  The lens barrel 18 is provided with a shake correction mode selector 45. The shake correction mode selector 45 is a switch operated by the photographer, and can select a state in which shake correction is performed (shake correction on) and a state in which shake correction is not performed (shake correction off). The shake correction mode selector 45 is interlocked with a shake correction mode switch a47 and a shake correction mode switch b49 provided in the lens side control unit 39.

  FIG. 2 is a timing chart showing the state of the shake correction mode selector 45 and the states of the shake correction mode switch a47 and the shake correction mode switch b49 corresponding thereto.

  As shown in FIG. 2, when the shake correction mode selector 45 is set to “shake correction on”, the shake correction mode switch a47 is set to “on state” and the shake correction mode switch b49 is set to “off state”. When the shake correction mode selector 45 is set to “shake correction off”, the shake correction mode switch a47 is set to “off state” and the shake correction mode switch b49 is set to “on state”. When the shake correction mode selector 45 is changed from a “shake correction on” state to a “shake correction off” state and vice versa by a known technique, the reverse “shake correction off” state is changed to a “shake correction on” state. It is configured not to stop at an intermediate position by an appropriate click feeling. When the shake correction mode selector 45 is at the intermediate position, the shake correction mode switch a47 and the shake correction mode switch b49 are both in the “off state”, the change from “shake correction on” to “shake correction off”, and vice versa. The change to can be recognized.

  The lens-side control unit 39 recognizes the states of the shake correction mode switch a47 and the shake correction mode switch b49, and controls all the circuits in the lens barrel 18 including the control of the shake correction device 35. Further, the lens barrel 18 is in communication with the camera body 3 through the inter-body communication circuit 51 with the lens barrel 18 mounted on the camera body 3. The power supply for the circuit in the lens barrel 18 is supplied from the camera body 3 by a known technique.

  Next, the support structure of the correction lens 29 will be described. FIG. 3 is a schematic diagram showing the configuration of the support portion 33 that supports the correction lens 29. As shown in FIG. 3, the support portion 33 includes a frame member 53 that fixes the correction lens 29 and a base member 55 that supports the frame member 53. The base member 55 is fixed in the lens barrel 18 by a support structure (not shown).

  The correction lens 29 is fixed to the center portion of the frame member 53. The base member 55 has an outer peripheral portion 57 that is disposed radially outward of the frame member 53. The frame member 53 is supported on the outer peripheral side portion of the base member 55 by a plurality of spring members 59 extending radially outward from the outer peripheral side of the frame member 53. Each spring member 59 has one end fixed to the outer peripheral side of the frame member 53 and the other end fixed to the outer peripheral side portion 57 of the base member 55. In the present embodiment, the frame member 53 is supported by the base member 55 by three spring members 59 provided at equal intervals in the circumferential direction. In other words, the spring members 59 adjacent to each other in the circumferential direction are provided such that the angle between them is 120 ° with the optical axis L as the center when viewed from the optical axis L direction. Thus, the correction lens 29 is supported on the base member 55 by the plurality of spring members 59 via the frame member 53.

  Coils (not shown) are attached to the frame member 53 for the yawing direction and the pitching direction, respectively. On the other hand, a permanent magnet (not shown) is attached to the base member 55 corresponding to each coil, and the voice coil motor (not shown) is constituted by the coil and the permanent magnet. Electromagnetic force is generated by passing a current through the coils for the yawing direction and the pitching direction, and the frame member 53 is moved in each direction. As a result, the correction lens 29 fixed to the frame member 53 moves in a direction orthogonal to the optical axis L. Hereinafter, “correction lens 29” refers to “correction lens 29 fixed to the frame member 53”.

  A circle S indicated by a broken line in FIG. 3 indicates a driving range of the correction lens 29. That is, this is the maximum range in which the correction lens 29 can be driven during the shake correction operation. In other words, the circle S indicates the maximum range in which the correction lens 29 can move mechanically.

  In this embodiment, the correction lens 29 is supported by the base member 55 only by the three spring members 59 as described above, and there is a mechanical lock mechanism for locking the correction lens 29 in a predetermined position. Not done. The mechanical lock mechanism is, for example, an electromagnetic lock mechanism that uses a latch solenoid to electromagnetically lock the correction lens such that the center of the correction lens 29 is positioned in the vicinity of the optical axis of the photographing optical system 27. is there. Therefore, the position of the correction lens 29 is not fixed in a state where drive control for shake correction is not performed. In other words, depending on the tilt state of the lens barrel 18, the elastic force of the three spring members 59 and the weight of the correction lens 29 are in balance. That is, when the lens barrel 18 is tilted in a state where drive control is not performed, the position of the correction lens 29 changes according to the tilt direction and tilt amount. Further, when the lens barrel 18 is suddenly moved or stopped, the correction lens 29 continues to be moved by the elastic force of the three spring members 59 until it settles at the balance position.

  Next, the camera body 3 to which the lens barrel 18 is attached will be described. In the camera body 3 according to this embodiment, the body-side control unit 5 outputs various signals according to the operation state on the camera body 3 side. Each output signal is communicated to the attached lens barrel 18 via the inter-lens communication circuit 17. Specifically, the signal output from the camera body 3 side to the lens barrel 18 is, for example, (1) when the main switch 13 (power source) is turned on, the power on signal (first (1 trigger signal), (2) when the main switch 13 (power supply) is turned off, and a power-off signal output corresponding to this, and (3) when the release button 7 (not shown) is half-pressed, The half-press on signal output corresponding to this, and (4) the half-press off signal output corresponding to this when the half-press of the release button 7 is turned off, and (5) the release button 7 When fully pressed, a full-press on signal that is output corresponding to this, and (6) when the full-press of the release button 7 is turned off, 7) Live view switch 15 is on If becomes a live view on the signal output in response thereto, (8) the live view switch 15 is turned off, the live view off signal outputted in response to this, it is.

  In the present embodiment, the lens barrel 18 can be attached to and detached from the first type camera body 3 and the second type camera body 103 different from the first type camera body 3. The determination unit 61 (see FIG. 1) of the lens barrel 18 determines whether the camera body attached according to the identification signal received from the camera body is the first type camera body 3 or the second type camera body 103. Determine if there is.

  The first type camera body 3 may be, for example, a camera body having a new function in addition to the function of the second type camera body 103. Further, the first type camera body 3 may operate differently from the second type camera body 103, for example, when the shake correction mode selector 45 is in a state in which shake correction is off.

  Further, for example, the first type of camera body 3 is a camera body that transmits information about full-press on to the lens barrel 18 when the shake correction mode selector 45 is in the state of shake correction off, and the second type of camera body 3 Reference numeral 103 denotes a camera body that does not transmit full-push-on information to the lens barrel 18 when the shake correction mode selector 45 is in a state in which shake correction is off.

  The first type camera body 3 is a camera body that transmits half-pressed on and fully-pressed on information to the lens barrel 18 when the shake correction mode selector 45 is in a state where the shake correction is off. The type of camera body 103 may be a camera body that does not transmit half-push-on and full-push-on information to the lens barrel 18 when the shake correction mode selector 45 is in the state of shake correction off.

  The first type camera body 3 is a camera body that transmits at least one of a live view on signal and a live view off signal to the lens barrel 18 when the shake correction mode selector 45 is in a state in which shake correction is off. The two types of camera bodies 103 may be camera bodies that do not transmit at least one of the live view on signal and the live view off signal to the lens barrel 18 in a state in which the shake correction mode selector 45 is off.

  When the lens barrel is connected and the power is turned on, the first type camera body 3 sends an identification signal (first identification signal) for identifying the first type camera body 3 to the lens barrel. Output. When the lens barrel 18 according to the present embodiment receives the identification signal via the inter-body communication circuit 51, the attached camera body 3 is determined to be the first type camera body 3 (see FIG. 1). ) And the lens side control unit 39 recognizes this.

  When the lens barrel 18 is mounted and the power is turned on, the second type camera body 103 sends an identification signal (second identification signal) for identifying the second type camera body 103 to the lens barrel. Output for. When the lens barrel 18 according to the present embodiment receives the identification signal via the inter-body communication circuit 51, the attached camera body 103 is determined to be the second type camera body 103 (see FIG. 1). ) And the lens side control unit 39 recognizes this.

  As another embodiment, the second type camera body 103 may not output an identification signal for identifying the second type camera body 103. In this case, when the lens barrel 18 according to this embodiment is attached to the second type camera body 103, the lens barrel 18 does not receive the identification signal. When the lens barrel 18 according to the present embodiment is mounted on the camera body and does not receive an identification signal, the determination unit determines that the mounted camera body is the second type camera body 103, and controls the lens side. The unit 39 recognizes this.

  In addition, when the lens barrel 18 according to the present embodiment is attached to the camera body and the power is turned on, the lens barrel 18 outputs a predetermined identification signal to the attached camera body. When the first type of camera body 3 receives the predetermined identification signal via the inter-lens communication circuit 17, the body-side control unit 5 indicates that the attached lens barrel is the lens barrel 18 according to the present embodiment. That is, it is recognized that the lens barrel does not have an electromagnetic lock mechanism for locking the correction lens 29. On the other hand, even if the second type camera body 103 receives the identification signal from the lens barrel 18, the body-side control unit 5 has the lens barrel attached to the lens barrel 18 according to the present embodiment. Cannot be recognized.

  As another embodiment, when the second type camera body 103 receives an identification signal from the lens barrel 18, the attached lens barrel is the lens barrel 18 according to the present embodiment. That is, it may be a lens barrel that does not have an electromagnetic lock mechanism for locking the correction lens 29.

  Next, regarding the control of the correction lens 29 of the lens barrel 18 provided with the shake correction device 35 according to the present embodiment, the case where the lens barrel 18 is attached to the first type camera body 3 and the second type camera. A description will be given comparing the case with the body 103.

  FIG. 4 is a time chart showing the control of the correction lens 29 in a state in which the shake correction mode selector 45 of the lens barrel 18 is on, that is, in a state in which shake correction is performed. The lens barrel 18 is a first type camera. The case where it is mounted on the body 3 is shown. FIG. 5 is a time chart showing the control of the correction lens 29 when the shake correction mode selector 45 of the lens barrel 18 is in the shake correction ON state. The lens barrel 18 is attached to the second type camera body 3. Shows the case.

  When the shake correction mode selector 45 is in the shake correction on state, the correction lens 29 is controlled when the lens barrel 18 is attached to the first type camera body 3 and to the second type camera body 103. The case is almost the same control. Hereinafter, a case where the camera body 3 is mounted on the first type camera body 3 will be described with reference to FIG. 4. However, when the camera body 103 is mounted on the second type camera lens 103, the lens barrel 18 identifies the camera body 103. Except for the step of performing and the step of determining that the release button 7 has been fully pressed, this is the same as the case where the camera body 3 is mounted on the first type.

  Before the power is turned on, since the correction lens 29 is not driven and controlled, it is not held at a fixed position, and its position changes according to the inclination of the lens barrel 18. That is, as described above, it is located at a position where the elastic force of the three spring members 59 and the weight of the correction lens 29 are balanced. When the main switch 13 on the camera body 3 side is turned on and the power is turned on, initial communication between the lens barrel and the camera body is performed. In the initial communication, when the first type camera body 3 is mounted on the lens barrel 18, the first type camera body 3 outputs an identification signal (first identification signal) to the lens barrel 18, and the lens mirror The tube 18 outputs the identification signal of the lens barrel 18 to the first type camera body 3. The determination unit 61 of the lens barrel 18 determines that the mounted camera body is the first type camera body 3 based on the first identification signal, and the lens side control unit 39 recognizes this. When the inter-body communication circuit 51 does not receive the first identification signal (when the second identification signal different from the first identification signal is received or when the identification signal is not received), the determination unit 61 determines that the mounted camera body is the second type camera body 103, and the lens-side control unit 39 recognizes this. The camera body (the first type camera body 3 or the second type camera body 103) identifies the lens barrel 18 according to the received signal received from the lens barrel 18. Further, the lens-side control unit 39 recognizes that the shake correction mode selector 45 is in a state where the shake correction is on.

  In FIG. 4, when the main switch 13 is turned on, the body-side control unit 5 of the first type camera body 3 outputs a power-on signal that is a first trigger signal correspondingly. The first trigger signal is input to the lens side control unit 39 via the interbody communication circuit 51. The first trigger signal may be output only once after the main switch 13 is turned on, or may be output periodically at predetermined intervals. Here, the release button 7 is not yet operated, and the half-press switch 9 and the full-press switch 11 are off.

  The lens-side control unit 39 does not control the correction lens 29 even when the first trigger signal is input. Therefore, the correction lens 29 is not held at a fixed position. When the release button 7 is half-pressed and the half-press switch 9 is turned on, a half-press on signal is output from the body side control unit 5 correspondingly. When a half-push-on signal is input, the lens-side control unit 39 recognizes this as a half-push correction start signal, and starts driving control of the correction lens 29 for performing half-push shake correction. The half-push shake correction is, for example, a shake correction with a smaller correction amount than an exposure shake correction described later. Specifically, shake correction corresponding to the shake of the lens barrel 18 is started from the position of the correction lens 29 when the half-press correction start signal is received. In this state, the correction lens 29 moves within the driving range of the correction lens 19 corresponding to the shake of the lens barrel 18 as shown in FIG.

  Thereafter, when the release button 7 is fully pressed and the full-press switch 11 is turned on, a full-press on signal is output from the body side control unit 5 correspondingly. When the full-press on signal is input, the lens-side control unit 39 recognizes this as an exposure shake correction start signal, and starts driving control of the correction lens 29 for correcting shake during exposure. Specifically, when the full-press on signal is input, the lens-side control unit 39 instructs the correction lens driving circuit 43 to position the correction lens 29 at the center of the driving range (centering instruction). When the correction lens 29 is positioned at the center of the driving range by the correction lens driving circuit 43, the lens side control unit 39 starts shake correction according to the shake of the lens barrel 18. Then, the exposure is started, and the exposure ends when a predetermined shutter speed elapses.

  Here, in FIG. 5 as well, a full-press on signal corresponding to the full-press of the release button 7 is also output from the body-side control unit 5 of the second type camera body 103 (see FIG. 5). The side control unit 39 determines that the release button 7 has been fully pressed.

  This will be described with reference to FIG. 4 again. When the full push switch 11 is turned off, the body side control unit 5 outputs a full push off signal correspondingly. When the full-press-off signal or the exposure end signal (see FIG. 12) is input, the lens side control unit 39 stops the shake correction during exposure. When the shake correction during exposure stops, the lens-side control unit 39 continues to perform the half-press shake correction. In FIG. 4, the half-press switch 9 is also turned off immediately after the full-press switch 11 is turned off. . When the half-push switch 9 is turned off, the body-side control unit 5 outputs a half-push off signal correspondingly. When the shake correction mode selector 45 is in the state in which the shake correction is on, the lens side control unit 39 recognizes this as a second trigger signal corresponding to the end of shooting when the half press off signal is input, and performs the half press shake correction. To stop.

  When the half-push shake correction is stopped, the correction lens 29 is not driven and controlled. That is, the correction lens 29 is not held at a fixed position. Thereafter, when the main switch 13 is turned off, the body-side control unit 5 outputs a power-off signal correspondingly. When the power-off signal is input, the lens-side control unit 39 makes the lens barrel 18 electrically sleep. The above is the control of the correction lens 29 in the state in which the shake correction mode selector 45 of the lens barrel 18 is on.

  Next, the control of the correction lens 29 when the shake correction mode selector 45 of the lens barrel 18 is in the shake correction OFF state, that is, when no shake correction is performed will be described. FIG. 6 is a time chart showing the control of the correction lens 29 when the shake correction mode selector 45 is in a state where the shake correction is off, and shows a case where the lens barrel 18 is attached to the first type camera body 3. Shows a case where the lens barrel 18 is attached to the second type camera body 103.

  When the shake correction mode selector 45 is in the state where shake correction is off, the correction lens 29 is controlled when the lens barrel 18 is attached to the first type camera body 3 and to the second type camera body 103. In some cases, the control is different. First, with reference to FIG. 6, the case where it mounts | wears with the 1st type camera body 3 is demonstrated. Note that the description of the process of determining the type of the camera body to which the lens barrel 18 is attached is the same as that in the case where the shake correction is on, and the description thereof is omitted.

  In FIG. 6, since the correction lens 29 is not driven and controlled before the power is turned on, the correction lens 29 is not held at a fixed position, and its position changes according to the inclination of the lens barrel 18. That is, it is located at a position where the elastic force of the three spring members 59 and the weight of the correction lens 29 are balanced. When the main switch 13 on the camera body 3 side is turned on and the power is turned on, the lens side control unit 39 of the lens barrel 18 determines whether the first type camera body 3 is attached by the initial communication or the second type. The camera body 103 is recognized. Further, the lens-side control unit 39 recognizes that the shake correction mode selector 45 is in a state where the shake correction is off.

  When the main switch 13 is turned on, the body-side control unit 5 of the first type camera body 3 outputs a power-on signal that is a first trigger signal correspondingly. The first trigger signal is input to the lens side control unit 39 via the interbody communication circuit 51. Here, the release button 7 is not yet operated, and the half-press switch 9 and the full-press switch 11 are off.

  The lens-side control unit 39 does not control the correction lens 29 even when the first trigger signal is input. Therefore, the correction lens 29 is not held at a fixed position. Then, when the release button 7 is half-pressed and the half-press switch 9 is turned on, the body-side control unit 5 outputs a half-press on signal correspondingly. The lens side control unit 39 does not control the correction lens 29 even if a half-press signal is input. Therefore, the correction lens 29 is not held at a fixed position.

  Thereafter, when the release button 7 is fully pressed and the full-press switch 11 is turned on, a full-press on signal is output from the body side control unit 5 correspondingly. When the fully-pressed on signal is input, the lens-side control unit 39 recognizes this as a position holding instruction signal, and starts driving control for holding the correction lens 29 at a predetermined position. Specifically, when the full-press on signal is input, the lens side control unit 39 instructs the correction lens driving circuit 43 to position the correction lens 29 at the center of the driving range. When the correction lens 29 is positioned at the center of the driving range by the correction lens drive circuit 43, the lens side control unit 39 instructs the correction lens drive circuit 43 to hold the correction lens 29 at a fixed position. In this state, the correction lens 29 is held at the center of the drive range (position indicated by A in FIG. 6) regardless of the tilt state of the lens barrel 18. Then, the exposure is started, and the exposure ends when a predetermined shutter speed elapses.

  When the full push switch 11 is turned off, the body side control unit 5 outputs a full push off signal correspondingly. When the shake correction mode selector 45 is in the state where the shake correction is off, the lens-side control unit 39 receives a full-press-off signal or an exposure end signal (see FIG. 12), and this corresponds to the end of shooting. 2 Recognizing as a trigger signal, holding the fixed lens 29 at a fixed position is stopped.

  When the holding of the correction lens 29 at the fixed position is stopped, the correction lens 29 is not driven and controlled. That is, the correction lens 29 is not held at a fixed position. Thereafter, when the main switch 13 is turned off, the body-side control unit 5 outputs a power-off signal correspondingly. When the power-off signal is input, the lens-side control unit 39 makes the lens barrel 18 electrically sleep. The above is the control of the correction lens 29 when the lens barrel 18 is attached to the first type camera body 3 in the state in which the shake correction mode selector 45 of the lens barrel 18 is off.

  In the above description, the correction lens 29 is held at the center of the driving range of the correction lens 29 (position indicated by A in FIG. 6), but the position of the correction lens 29 immediately before the full-press on signal is input. Depending on the situation, when the correction lens 29 is moved to the center of the driving range of the correction lens 29, the image in the viewfinder may move greatly. In order to prevent this, for example, the correction lens 29 may be held at a position (position indicated by B in FIG. 6) where the correction lens 29 is positioned immediately before the full-press on signal is input. The position of the correction lens 29 may be held at an intermediate position (position indicated by C in FIG. 6) between the center of the driving range of the correction lens 29 and the position where the correction lens 29 is positioned immediately before the full-press on signal is input. . This intermediate position is a position where optical performance can be obtained rather than holding the position at the position B in FIG. Although not shown, the position may be held at the control center of the correction lens 29.

  Next, with reference to FIG. 7, a case where the shake correction mode selector 45 of the lens barrel 18 is in the shake correction off state and the lens barrel 18 is mounted on the second type camera body 103 will be described. . Note that the description of the process of determining the type of the camera body to which the lens barrel 18 is attached is the same as that in the case where the shake correction is on, and the description thereof is omitted.

  Before the power is turned on, since the correction lens 29 is not driven and controlled, it is not held at a fixed position, and its position changes according to the inclination of the lens barrel 18. That is, it is located at a position where the elastic force of the three spring members 59 and the weight of the correction lens 19 are balanced. When the main switch 13 on the camera body 103 side is turned on and the power is turned on, the lens-side control unit 39 of the lens barrel 18 determines whether the first type camera body 3 is attached or not in the second type by initial communication. The camera body 103 is recognized. Further, the lens-side control unit 5 recognizes that the shake correction mode selector 45 is in a state where the shake correction is off.

  When the main switch 13 is turned on, a power-on signal that is a first trigger signal is output from the body-side control unit 5 of the second type camera body 103. The first trigger signal is input to the lens side control unit 39 via the interbody communication circuit 51. Here, the release button 7 is not yet operated, and the half-press switch 9 and the full-press switch 11 are off.

  When the first trigger signal is input, the lens-side control unit 39 recognizes this as a position holding instruction signal, and starts driving control for holding the correction lens 29 at a predetermined position. Specifically, when the first trigger signal is input, the lens side control unit 39 instructs the correction lens driving circuit 43 to position the correction lens 29 at the center of the driving range. When the correction lens 29 is positioned at the center of the driving range by the correction lens drive circuit 43, the lens side control unit 39 instructs the correction lens drive circuit 43 to hold the correction lens 29 at a fixed position. In this state, the correction lens 29 is held at the center of the driving range (position indicated by A in FIG. 7) regardless of the shake state of the lens barrel 18.

  Thereafter, when the release button 7 is half-pressed and the half-press switch 9 is turned on, a half-press on signal is output from the body side control unit 5 correspondingly. The lens-side control unit 39 maintains the fixed position holding control of the correction lens 29 even when a half-press signal is input.

  Thereafter, even when the release button 7 is fully pressed and the full-press switch 11 is turned on, the body-side control unit 5 does not output a corresponding signal. The lens side control unit 5 continues to maintain the fixed position holding control of the correction lens 29. Then, the exposure is started, and the exposure ends when a predetermined shutter speed elapses. When the full push switch 11 is turned off, the body side control unit 5 outputs a full push off signal correspondingly. The lens-side control unit 39 maintains the fixed position holding control of the correction lens 29 even when a full push-off signal is input.

  Thereafter, when the main switch 13 is turned off, the body-side control unit 5 outputs a power-off signal correspondingly. When the shake correction mode selector 45 is in the state where the shake correction is off, the lens-side control unit 39 stops holding the correction lens 29 at a fixed position when a power-off signal is input.

  When the holding of the correction lens 29 at the fixed position is stopped, the correction lens 29 is not driven and controlled. That is, the correction lens 29 is not held at a fixed position. When the power-off signal is input, the lens-side control unit 39 makes the lens barrel 18 electrically sleep. The above is the control of the correction lens 29 when the lens barrel 18 is attached to the second type camera body 103 in a state in which the shake correction mode selector of the lens barrel 18 is off.

  In the above description, the correction lens 29 is held at the center of the driving range of the correction lens 29 (the position indicated by A in FIG. 7). However, as in the case where the correction lens 29 is attached to the first type camera body 3. The correction lens 29 may be held at a position (position indicated by B in FIG. 7) immediately before the first trigger signal is input, or the driving range of the correction lens 29 may be set. The position may be held at an intermediate position (position indicated by C in FIG. 7) between the center and the position where the correction lens 29 was positioned immediately before the first trigger signal was input. Although not shown, the position may be held at the control center of the correction lens 29.

  Thus, according to the present embodiment, it is possible to provide the shake correction device 35 having good optical performance regardless of whether the shake correction control is on or off. Further, since the electromagnetic lock mechanism using the latch solenoid is not provided, the lens barrel 18 can be reduced in size and weight.

  In the above-described embodiment, the first type camera body 3 and the second type camera body 103 have been described using the example in which the fully-pressed information is transmitted to the lens barrel 18, but the present invention is not limited thereto. It is not a thing. For example, the first type of camera body 3 is a camera body that transmits full-press on information to the lens barrel 18 when the shake correction mode selector 45 is in the state of shake correction off, and the second type of camera body 103 is Alternatively, the camera body may not transmit full push-on information to the lens barrel 18 when the shake correction mode selector 45 is in the state of shake correction off. By doing so, the lens barrel 18 can start holding the position according to the information of full depression when the first type camera body 3 is mounted, and the second type camera body 103 can be started. When is installed, the communication load can be reduced by not receiving unnecessary full-press on information.

(Second Embodiment)
Next, a shake correction apparatus according to the second embodiment of the present invention will be described. The configuration of the shake correction apparatus 135 according to the second embodiment is the same as that of the shake correction apparatus 35 according to the first embodiment, but the drive control of the correction lens 29 is different from that of the first embodiment. Therefore, the description of the configuration of the shake correction apparatus 135 according to the present embodiment is omitted, and the description will focus on the control of the correction lens 29. Note that the camera body to which the lens barrel 118 including the shake correction device 135 according to the second embodiment is attached is the first type camera body 3 and the second type camera body 103 as in the first embodiment. It is. Moreover, in the following description, the same code | symbol as 1st Embodiment is used about the structure similar to 1st Embodiment.

  FIG. 8 is a time chart showing the control of the correction lens 29 when the shake correction mode selector 45 of the lens barrel 118 is in the state where shake correction is on, that is, when shake correction is performed. The lens barrel 118 is a first type of camera. FIG. 9 shows a case where the lens barrel 118 is attached to the second type camera body 103. FIG.

  A case where the lens barrel 118 is attached to the first type camera body 3 and a case where the lens barrel 118 is attached to the second type camera body 103 in a state where the shake correction mode selector 45 is in the shake correction ON state will be described. The description of the process of determining the type of the camera body to which the lens barrel 118 is attached is the same as in the first embodiment described above, and thus the description thereof is omitted.

  In FIG. 8, since the correction lens 29 is not driven and controlled before the power is turned on, the correction lens 29 is not held at a fixed position, and its position changes according to the inclination of the lens barrel 118. That is, it is located at a position where the elastic force of the three spring members 59 and the weight of the correction lens 29 are balanced. When the main switch 13 on the camera body 3 side is turned on and the power is turned on, the lens side control unit 39 of the lens barrel 118 determines whether the first type camera body 3 is attached by the initial communication or the second type. The camera body 103 is recognized. Further, the lens-side control unit 39 recognizes that the shake correction mode selector 45 is in a state where the shake correction is on.

  When the main switch 13 is turned on, the body-side control unit 5 of the first type camera body 3 outputs a power-on signal that is a first trigger signal correspondingly. The first trigger signal is input to the lens side control unit 39 via the interbody communication circuit 51. The first trigger signal may be output only once after the main switch 13 is turned on, or may be output periodically at predetermined intervals. Here, the release button 7 is not yet operated, and the half-press switch 9 and the full-press switch 11 are off.

  The lens-side control unit 39 does not control the correction lens 29 even when the first trigger signal is input. Therefore, the correction lens 29 is not held at a fixed position. Thereafter, when the live view switch 15 is operated and turned on, a live view on signal is output from the body side control unit 5 correspondingly. When the live view on signal is input, the lens-side control unit 39 recognizes this as a half-press correction start signal, and starts driving control of the correction lens 29 for correcting half-press shake. Specifically, shake correction according to the tilt of the lens barrel 118 is started from the position of the correction lens 29 when the half-press correction start signal is received. In this state, the correction lens 29 moves within the drive range of the correction lens 29 corresponding to the inclination of the lens barrel 118, as shown in FIG.

  When the release button 7 is half-pressed and the half-press switch 9 is turned on, a half-press on signal is output from the body side control unit 5 correspondingly. Since the lens-side control unit 39 has already performed half-push shake correction even when a half-push-on signal is input, the lens-side control unit 39 continues to perform half-push shake correction.

  Thereafter, when the release button 7 is fully pressed and the full-press switch 11 is turned on, a full-press on signal is output from the body side control unit 5 correspondingly. When the full-press on signal is input, the lens-side control unit 39 recognizes this as an exposure shake correction start signal, and starts driving control of the correction lens 29 for correcting shake during exposure. Specifically, when the full-press on signal is input, the lens-side control unit 39 instructs the correction lens driving circuit 43 to position the correction lens 29 at the center of the driving range (centering instruction). When the correction lens 29 is positioned at the center of the driving range by the correction lens driving circuit 43, the lens side control unit 39 starts shake correction according to the tilt of the lens barrel 118. Then, the exposure is started, and the exposure ends when a predetermined shutter speed elapses.

  When the full push switch 11 is turned off, the body side control unit 5 outputs a full push off signal correspondingly. The lens side control unit 39 stops the shake correction at the time of exposure when the full push-off signal is input. When the exposure shake correction is stopped, the lens-side control unit 39 continues to perform half-press shake correction. Thereafter, when the live view switch 15 is turned off, the body side control unit 5 outputs a live view off signal correspondingly. When the shake correction mode selector 45 is in the state where the shake correction is on, the lens side control unit 39 recognizes the live view off signal as a second trigger signal corresponding to the end of shooting, and performs half-press shake correction. To stop.

  When the half-push shake correction is stopped, the correction lens 29 is not driven and controlled. That is, the correction lens 29 is not held at a fixed position. Thereafter, when the main switch 13 is turned off, the body-side control unit 5 outputs a power-off signal correspondingly. When the power-off signal is input, the lens side control unit 39 makes the lens barrel 118 electrically sleep. The above is the control of the correction lens 29 in a state where the lens barrel 118 is mounted on the first type camera body 3 in the state where the shake correction mode selector 45 of the lens barrel 118 according to the second embodiment is on. It is.

  FIG. 9 is a diagram illustrating a case where the shake correction mode selector 45 of the lens barrel 118 is in the shake correction ON state and the lens barrel 118 according to the second embodiment is attached to the second type camera body 103. However, since it is the same as FIG. 8, detailed description is omitted.

  Next, the control of the correction lens 29 when the shake correction mode selector 45 of the lens barrel 118 according to the second embodiment is in the shake correction off state, that is, when no shake correction is performed will be described. FIG. 10 is a time chart showing the control of the correction lens 29 when the shake correction mode selector 45 is in a state where the shake correction is off, and shows a case where the lens barrel 118 is attached to the first type camera body 3. Shows a case where the lens barrel 118 is attached to the second type camera body 103.

  When the shake correction mode selector 45 is in the state where shake correction is off, the correction lens 29 is controlled when the lens barrel 118 is attached to the first type camera body 3 and to the second type camera body 103. In some cases, the control is different. First, with reference to FIG. 10, the case where it mounts | wears with the 1st type camera body 3 is demonstrated. Note that the description of the process of determining the type of the camera body to which the lens barrel 118 is attached is the same as in the case of the first embodiment described above, and a description thereof will be omitted.

  In FIG. 10, since the correction lens 29 is not driven and controlled before the power is turned on, the correction lens 29 is not held at a fixed position, and its position changes according to the inclination of the lens barrel 118. That is, it is located at a position where the elastic force of the three spring members 59 and the weight of the correction lens 29 are balanced. When the main switch 13 on the camera body 3 side is turned on and the power is turned on, the lens side control unit 39 of the lens barrel 118 determines whether the first type camera body 3 is mounted by the initial communication or the second type. The camera body 103 is recognized. Further, the lens-side control unit 39 recognizes that the shake correction mode selector 45 is in a state where the shake correction is off.

  Further, when the main switch 13 is turned on, a power-on signal that is a first trigger signal is output from the body-side control unit 5 of the first type camera body 3. The first trigger signal is input to the lens side control unit 39 via the interbody communication circuit 51. Here, the release button 7 is not yet operated, and the half-press switch 9 and the full-press switch 11 are off.

  The lens-side control unit 39 does not control the correction lens 29 even when the first trigger signal is input. Therefore, the correction lens 29 is not held at a fixed position. When the release button 7 is half-pressed and the half-press switch 9 is turned on, a half-press on signal is output from the body side control unit 5 correspondingly. The lens side control unit 39 does not control the correction lens 29 even if a half-press signal is input. Therefore, the correction lens 29 is not held at a fixed position.

  Thereafter, when the live view switch 15 is operated and turned on, a live view on signal is output from the body side control unit 5 correspondingly. When the live view on signal is input, the lens side control unit 39 recognizes this as a position holding instruction signal and starts driving control for holding the correction lens 29 at a predetermined position. Specifically, when the live view on signal is input, the lens side control unit 39 instructs the correction lens driving circuit 43 to position the correction lens 29 at the center of the driving range. When the correction lens 29 is positioned at the center of the driving range by the correction lens drive circuit 43, the lens side control unit 39 instructs the correction lens drive circuit 43 to hold the correction lens 29 at a fixed position. In this state, the correction lens 29 is held at the center of the driving range (position indicated by A in FIG. 10) regardless of the tilt state of the lens barrel 118.

  Thereafter, when the release button 7 is fully pressed and the full-press switch 11 is turned on, a full-press on signal is output from the body side control unit 5 correspondingly. The lens side control unit 39 maintains the fixed position of the correction lens 29 even when a full-press on signal is input. Then, the exposure is started, and the exposure ends when a predetermined shutter speed elapses. When the full push switch 11 is turned off, the body side control unit 5 outputs a full push off signal correspondingly. The lens side control unit 39 maintains the fixed position of the correction lens 29 even when the full push-off signal is input.

  Thereafter, when the live view switch 15 is turned off, the body side control unit 5 outputs a live view off signal correspondingly. When the shake correction mode selector 45 is in the state where the shake correction is off, the lens side control unit 39 recognizes the live view off signal as a second trigger signal corresponding to the end of shooting, and Stops holding the fixed position.

  When the holding of the correction lens 29 at the fixed position is stopped, the correction lens 29 is not driven and controlled. That is, the correction lens 29 is not held at a fixed position. Thereafter, when the main switch 13 is turned off, the body-side control unit 5 outputs a power-off signal correspondingly. When the power-off signal is input, the lens side control unit 39 makes the lens barrel 118 electrically sleep. The above is the control of the correction lens 29 in a state where the lens barrel 118 is mounted on the first type camera body 3 in the state where the shake correction mode selector 45 of the lens barrel 118 according to the second embodiment is off. It is.

  In the above description, the correction lens 29 is held at the center of the driving range of the correction lens 29 (the position indicated by A in FIG. 10). However, as in the first embodiment, a live view on signal is input. The correction lens 29 may be held at the position (position indicated by B in FIG. 10) immediately before the correction lens 29 is positioned, or the center of the driving range of the correction lens 29 and the live view on signal are input. The position may be held at an intermediate position (position indicated by C in FIG. 10) from the position where the correction lens 29 was positioned immediately before the correction. Although not shown, the position may be held at the control center of the correction lens 29.

  Next, referring to FIG. 11, the shake correction mode selector 45 of the lens barrel 118 is in the shake correction ON state, and the lens barrel 118 according to the second embodiment is attached to the second type camera body 103. The case will be described.

  The live view on signal and the live view off signal are not output from the body side control unit 5 of the second type camera body 103. Therefore, the control of the correction lens 9 when the lens barrel 118 according to the second embodiment is attached to the second type camera body 103 is performed independently of the live view switch 15, and according to the first embodiment. The control is the same as when the lens barrel 18 is attached to the second type camera body 103 (see FIG. 7). That is, the fixed position holding control of the correction lens 29 is started by the first trigger signal, and the fixed position holding control is stopped by the power off signal.

  The holding position of the correction lens 29 may be the center of the driving range of the correction lens 29 (position indicated by A in FIG. 11), or the correction lens 29 was positioned immediately before the first trigger signal was input. The position may be held at the position (indicated by B in FIG. 11), and the correction lens 29 is positioned immediately before the center of the driving range of the correction lens 29 and the first trigger signal are input. The position may be held at an intermediate position (position indicated by C in FIG. 11). Although not shown, the position may be held at the control center of the correction lens 29.

  As described above, also in the second embodiment, as in the first embodiment, it is possible to provide the shake correction device 135 having good optical performance regardless of whether the shake correction control is on or off. Further, since the electromagnetic lock mechanism is not provided, the lens barrel 118 can be reduced in size and weight.

  In the embodiment described above, the first type of camera body 3 is a camera body that transmits a live view on signal and a live view off signal to the lens barrel 18 when the shake correction mode selector 45 is in a state in which shake correction is off. The second type camera body 103 is described using an embodiment of a camera body that does not transmit the live view on signal and the live view off signal to the lens barrel 18 when the shake correction mode selector 45 is in the state of shake correction off. However, it is not limited to this. For example, the live view on signal and the live view off signal are transmitted to the lens barrel 18 when the first type camera body 3 and the second type camera body 103 are in the state in which the shake correction mode selector 45 is off. Yes, the lens barrel 18 ignores the live view on signal and the live view off signal when it determines that the second type camera body 103 is mounted, and recognizes and corrects the first trigger signal as a position holding instruction signal. Driving control for holding the lens 29 in a predetermined position is started, and when the power-off signal is input, the correction lens 29 is controlled to stop holding the fixed position, and the first type camera body 3 is mounted. If the live view on signal and live view off signal are The recognized correction lens 29 starts driving control for maintaining in position Te, may be controlled to stop the live view off signal is input to position-keep the correcting lens 29.

  Next, a modification of the first embodiment will be described. In the present modification, the lens barrel 18 is mounted on the first-type camera body 3 with the control described with reference to FIG. This is substantially the same as when the position holding control of the correction lens 29 is started. FIG. 12 is a time chart showing the control of the correction lens 29 according to this modification. The description of the process of determining the type of the camera body to which the lens barrel 18 is attached is the same as in the case of the first embodiment described above, and will be omitted.

  In FIG. 12, since the correction lens 29 is not driven and controlled before the power is turned on, the correction lens 29 is not held at a fixed position, and its position changes according to the inclination of the lens barrel 18. That is, it is located at a position where the elastic force of the three spring members 59 and the weight of the correction lens 29 are balanced. When the main switch 13 on the camera body 3 side is turned on and the power is turned on, the lens side control unit 39 of the lens barrel 18 determines whether the first type camera body 3 is attached by the initial communication or the second type. The camera body 103 is recognized. Further, the lens-side control unit 39 recognizes that the shake correction mode selector 45 is in a state where the shake correction is off. In this modification, after the main switch 13 is turned on, the release button 7 is fully pressed to start exposure, and the correction lens 29 is held at the center of the driving range. This is the same as the control. Therefore, the description here is omitted.

  As shown in FIG. 12, when a predetermined shutter speed elapses with the correction lens 29 held at a fixed position, the exposure ends. In the present modification, the body-side control unit 5 outputs an exposure end signal in response to the elapse of a predetermined shutter speed. When the exposure end signal is input, the lens-side control unit 39 recognizes this as a second trigger signal corresponding to the end of shooting, and stops holding the correction lens 29 at a fixed position.

  When the holding of the correction lens 29 at the fixed position is stopped, the correction lens 29 is not driven and controlled. That is, the correction lens 29 is not held at a fixed position. Thereafter, when the main switch 13 is turned off, the body-side control unit 5 outputs a power-off signal correspondingly. When the power-off signal is input, the lens-side control unit 39 makes the lens barrel 18 electrically sleep. The above is a modified example of the control of the correction lens 29 when the lens barrel 18 is attached to the first type camera body 3 in the state in which the shake correction mode selector 45 of the lens barrel 18 is off.

  In this modification as well, the holding position of the correction lens 29 may be the center of the drive range of the correction lens 29 (position indicated by A in FIG. 12), or the correction lens just before the first trigger signal is input. 29 may be held at the position (position indicated by B in FIG. 12), or the correction lens 29 may be held immediately before the center of the driving range of the correction lens 29 and the first trigger signal are input. The position may be held at an intermediate position (position indicated by C in FIG. 12) with respect to the position where 29 is located. Although not shown, the position may be held at the control center of the correction lens 29.

  Thus, also in the modified example of the first embodiment, it is possible to provide the shake correction device 35 having good optical performance regardless of whether the shake correction control is on or off. Further, since the electromagnetic lock mechanism is not provided, the lens barrel 18 can be reduced in size and weight.

  This is the end of the description of each embodiment of the present invention, but the present invention is not limited to the above-described embodiment, and can be modified as appropriate. For example, in the above embodiment, the correction lens 29 is supported by the base member 55 by the three spring members 59, but may be supported by four or more spring members 59.

  In the above-described embodiment, when the shake correction mode selector 45 is in the state where the shake correction is off, the first type camera body 3 that transmits information about half-pressed on and fully-pressed on to the lens barrel 18, and the shake Although the description has been made using the second-type camera body 103 that does not transmit half-push-on and full-push-on information to the lens barrel 18 when the correction mode selector 45 is in the state of shake correction off, the present invention is not limited to this. It is not a thing.

  For example, the first type of camera body 3 is a camera body that transmits at least one of half-pressed on and full-pressed on information to the lens barrel 18 when the shake correction mode selector 45 is in the state of shake correction off. The second type camera body 103 may be a camera body that does not transmit information about half-pressed on and fully-pressed on to the lens barrel 18 when the shake correction mode selector 45 is in a state where the shake correction is off.

  For example, the first type camera body 3 transmits a power-on signal to the lens barrel 18 and then transmits a power-off signal to the lens barrel 18 when the shake correction mode selector 45 is in a state where the shake correction is off. The second type camera body 103 is a half-pressed on and fully-pressed on when the shake correction mode selector 45 is in a state where the shake correction is off. It may be a camera body that does not transmit at least one of the information to the lens barrel 18.

  Moreover, although the said embodiment demonstrated the case where the lens barrel provided with the shake correction apparatus which concerns on this invention was mounted | worn with the camera body of a digital single-lens reflex camera, you may mount | wear with a mirrorless camera.

DESCRIPTION OF SYMBOLS 1 Camera 3, 103 Camera body 5 Body side control part 7 Release button 9 Half push switch 11 Full push switch 13 Main switch 15 Live view switch 17 Inter lens communication circuit 18, 118 Lens barrel 27 Shooting optical system 29 Correction lens 33 Support Units 35 and 135 shake correction device 37 shake detection circuit 39 lens side control unit 41 correction lens position detection circuit 43 correction lens drive circuit 45 shake correction mode selector 47 shake correction mode switch a
49 Shake correction mode switch b
51 Communication circuit 53 between bodies 53 Frame member 55 Base member 59 Spring member 61 Judgment part

Claims (15)

A correction optical system movable to correct image blur, and
A drive unit for driving the correction optical system;
A determination unit that determines whether to correct the image blur;
A controller that corrects the image blur by controlling the driving unit when the determining unit determines to correct the image blur; and
A receiver for receiving signals from the mounted camera body;
Using the signal received by the receiver, it is determined whether the mounted camera body is a first type camera body or a second type camera body different from the first type camera body. And a determination unit to
When the determination unit determines that the mounted camera body is the first type camera body when the determination unit has not determined to correct image blur by the determination unit, When a first control is performed to hold the position of the correction optical system at a predetermined position after a shooting operation, and the determination unit determines that the mounted camera body is the second type camera body, the photographer An image blur correction apparatus that performs a second control to hold the position of the correction optical system at a predetermined position before the photographing operation by. The image blur correction apparatus according to claim 1,
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the first type camera body,
The receiving unit receives a signal corresponding to a shooting operation by the photographer,
The image blur correction apparatus according to claim 1, wherein the control unit does not control the correction optical system before receiving a signal corresponding to a photographing operation by the photographer. An image blur correction apparatus according to claim 2,
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the first type camera body,
The receiving unit receives a signal corresponding to the end of shooting from the mounted camera body,
The image blur correction apparatus according to claim 1, wherein the control unit ends the control of the correction optical system after receiving a signal corresponding to the end of photographing. An image blur correction apparatus according to any one of claims 1 to 3, wherein
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the second type camera body,
The receiving unit receives a first trigger signal from the mounted camera body after powering on the camera body,
The image blur correction apparatus, wherein the control unit performs the second control after receiving the first trigger signal. The image blur correction apparatus according to claim 4,
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the second type camera body,
The image blur correction apparatus according to claim 1, wherein the reception unit does not receive a signal corresponding to a photographing operation by the photographer. The image blur correction device according to claim 5,
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the second type camera body,
The image blur correction apparatus, wherein the control unit performs the second control until the power of the camera body is turned off. An image blur correction apparatus according to any one of claims 1 to 6, wherein
In the first control, the control unit includes a drive center of the correction optical system, a control center of the correction optical system, a position of the correction optical system before the first control is started, and the first control. Holding the correction optical system at any position on the drive center side of the correction optical system with respect to the position of the correction optical system before starting
In the second control, the drive center of the correction optical system, the control center of the correction optical system, the position of the correction optical system before the second control is started, and before the second control is started. An image blur correction apparatus characterized in that the correction optical system is held at one of positions on the drive center side of the correction optical system with respect to the position of the correction optical system. A correction optical system movable to correct image blur, and
A drive unit for driving the correction optical system;
A determination unit that determines whether to correct the image blur;
A controller that corrects the image blur by controlling the driving unit when the determining unit determines to correct the image blur; and
A receiver for receiving signals from the mounted camera body;
Using the signal received by the receiver, it is determined whether the mounted camera body is a first type camera body or a second type camera body different from the first type camera body. And a determination unit to
When the determination unit determines that the mounted camera body is the first type camera body when the determination unit has not determined to correct image blur by the determination unit, When the third control is performed to hold the position of the correction optical system at a predetermined position after the start operation of the live view, and when the determined camera body determines that the mounted camera body is the second type camera body, A shake correction apparatus that performs fourth control for holding the position of the correction optical system at a predetermined position before a live view start operation by the photographer. The image blur correction apparatus according to claim 8,
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the first type camera body,
The receiving unit receives a signal corresponding to a live view start operation by the photographer,
The image blur correction apparatus according to claim 1, wherein the control unit does not control the correction optical system before receiving a signal corresponding to a live view start operation by the photographer. An image blur correction apparatus according to claim 9, wherein
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the first type camera body,
The receiving unit receives a signal corresponding to the end of the live view from the mounted camera body,
The image blur correction apparatus, wherein the control unit ends the control of the correction optical system after receiving a signal corresponding to the end of the live view. An image blur correction apparatus according to any one of claims 8 to 10, wherein
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the second type camera body,
The receiving unit receives a first trigger signal from the mounted camera body after powering on the camera body,
The image blur correction apparatus, wherein the control unit performs the fourth control after receiving the first trigger signal. The image blur correction device according to claim 11,
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the second type camera body,
The image blur correction apparatus, wherein the reception unit does not receive a signal corresponding to a live view start operation by the photographer. An image blur correction apparatus according to claim 12, wherein
In the case where it is not determined to correct image blur by the determination unit, and the determination unit determines that the mounted camera body is the second type camera body,
The image blur correction apparatus, wherein the control unit performs the fourth control until the power of the camera body is turned off. An image blur correction apparatus according to any one of claims 8 to 13,
In the third control, the control unit includes a drive center of the correction optical system, a control center of the correction optical system, a position of the correction optical system before the third control is started, and the third control. Holding the correction optical system at any position on the drive center side of the correction optical system with respect to the position of the correction optical system before starting
In the fourth control, the driving center of the correction optical system, the control center of the correction optical system, the position of the correction optical system before the fourth control is started, and before the fourth control is started. An image blur correction apparatus characterized in that the correction optical system is held at one of positions on the drive center side of the correction optical system with respect to the position of the correction optical system. The image blur correction device according to any one of claims 1 to 14, wherein
An image blur correction apparatus comprising: a holding member that holds the correction optical system at a predetermined position.