JP7604166B2 - Lens device and imaging device - Google Patents

Description

The present invention relates to a lens device that can achieve a tilt effect when taking photographs.

By tilting or shifting the lens relative to the imaging surface, it is possible to obtain a tilt effect, such as tilting the surface of the subject on which the focus is to be achieved relative to the imaging surface. Patent Document 1 discloses a lens device that has two operating rings on the outer periphery of the lens barrel, and that can change the orientation (rotational position) of the tilt axis of the lens inside the lens barrel around the optical axis by rotating the first operating ring, and can change the tilt direction around the tilt axis of the lens by rotating the second operating ring.

Patent No. 4462357

However, in the lens device disclosed in Patent Document 1, the rotational direction of the second operating ring does not match the actual tilt direction of the lens, so the user may not be able to intuitively operate the second operating ring.

Moreover, because the orientation of the tilt axis changes when the first operating ring is rotated, the user must visually check the orientation of the first operating ring before operating the second operating ring. Furthermore, when adjusting the orientation of the tilt axis to tilt the lens, the user must move their hand significantly from the first operating ring to the second operating ring. These factors make it difficult for the user to operate quickly.

The present invention provides a lens device that allows the user to intuitively and quickly perform operations for tilt-and-shift photography.

A lens device according to one aspect of the present invention comprises a lens arranged in a lens barrel, tilt means for tilting the lens in the lens barrel about a tilt axis perpendicular to the optical axis, a first operating member that is rotated around the optical axis on the outer periphery of the lens barrel, a change means for changing the orientation of the tilt axis about the optical axis in response to the rotation of the first operating member, and a second operating member that is operated to tilt the lens. The second operating member is arranged on the first operating member, and is arranged at a position that passes through the optical axis and is perpendicular to the tilt axis , and moves around the optical axis with the rotation of the first operating member. The operating directions of the second operating member are two directions that are symmetrical with respect to a plane perpendicular to the optical axis.

A lens device according to one aspect of the present invention includes a lens arranged in a lens barrel, a shifting means for shifting the lens in the lens barrel in a shifting direction perpendicular to the optical axis, a first operating member that is rotated around the optical axis on the outer periphery of the lens barrel, a changing means for changing the orientation of the shifting direction around the optical axis in response to the rotation of the first operating member, and a second operating member that is operated to shift the lens. The second operating member is arranged on the first operating member, and is arranged at a position that passes through the optical axis and is perpendicular to the shifting direction , and moves around the optical axis with the rotation of the first operating member. The operating directions of the second operating member are two directions that are symmetrical with respect to a plane perpendicular to the optical axis. An imaging device used together with the lens device also constitutes another aspect of the present invention.

The present invention allows the user to intuitively and quickly perform operations for tilt-and-shift photography.

FIG. 2 is an XY sectional view of the lens device according to the first embodiment. FIG. 2 is a YZ sectional view of the lens device of the first embodiment. 4 is a YZ sectional view of the lens device when the operation ring is at the 0° position in the first embodiment. FIG. 4 is a YZ sectional view of the lens device when the operation ring is at a +90° position in the first embodiment. FIG. FIG. 4 is a top view of the operation ring and the operation switch according to the first embodiment. 4 is a diagram showing a display unit of a camera to which the lens device of the first embodiment is attached (in a state corresponding to FIG. 3 ). 5 is a diagram showing a display unit of a camera to which the lens device of the first embodiment is attached (in a state corresponding to FIG. 4 ). FIG. 11 is a YZ sectional view of the lens device of the second embodiment. FIG. 11 is an XY sectional view of the lens device according to the second embodiment. 10 is a YZ cross-sectional view taken along line DD in FIG. 9 .

The following describes an embodiment of the present invention with reference to the drawings.

Figure 1 shows an XY cross section parallel to the optical axis α (X axis) of a lens device 100 according to a first embodiment of the present invention, and Figure 2 shows a YZ cross section perpendicular to the optical axis α of the lens device 100. Note that Figure 1 is a cross section taken along line A-A in Figure 2, which is slightly offset from the optical axis α. In Figure 1, the left side is the object side (front side) and the right side is the image side (rear side).

The lens device 100 has a lens 11 that produces a tilt effect by tilting it with respect to the optical axis α, a holding frame 21 that holds the lens 11, and a guide tube 31 that holds a holding shaft 211 provided on the holding frame 21 with a holding hole 311. The holding shaft 211 and the holding hole 311 are provided at two locations in the diameter direction on the holding frame 21 and the guide tube 31, respectively. The holding frame 21 is held by the guide tube 31 so as to be tiltable around a tilt axis β that passes through the center of the holding shaft 211 and the holding hole 311.

The drive unit 41 is fixed to one location on the outer circumference of the guide tube 31, in a direction perpendicular to the tilt axis β from the optical axis α. The drive unit 41 is a motor (actuator) having a lead screw 411 that rotates around an axis parallel to the optical axis α, and generates a drive force that tilts the holding frame 22. The guide tube 31 is held by the fixed tube 51 so as to be rotatable around the optical axis α by a bayonet coupling. An exterior fixed tube 101 is disposed on the outer circumference of the fixed tube 51 and the guide tube 31 as a lens tube. A lens mount (not shown) that is detachably attached to an imaging device (interchangeable lens camera) described later is provided at the rear end of the exterior fixed tube 101. In addition, a control board 102 is fixed to the rear end of the exterior fixed tube 101.

The control board 102 is equipped with a control unit (control means) 81 configured with a CPU and the like, and is connected to a switch operation detection unit (operation detection means) 72 via a flexible printed circuit board (FPC) 721. The switch operation detection unit 72 detects operations on the operation switch 71, which will be described later.

An operating ring (first operating member) 61 that can be rotated around the optical axis α is disposed on the outer periphery of the exterior fixed tube 101. The operating ring 61 is connected to the guide tube 31 via a connecting portion 62 so that it can rotate together with the guide tube 31. Therefore, when the operating ring 61 is rotated, the rotational operating force is transmitted to the guide tube 31 and the holding frame 21, causing them to rotate around the optical axis α, and as a result, the tilt axis β also rotates around the optical axis α. This configuration realizes a change means that changes the orientation of the tilt axis β around the optical axis α by rotating the operating ring 61.

The connecting portion 62 passes through a groove formed in the exterior fixed barrel 101 so as to extend over a circumferential range of 180°. When the connecting portion 62 comes into contact with both ends of this groove, the range of rotation of the operating ring 61 and the guide barrel 31 around the optical axis α is limited to a range of ±90° with the 0° position shown in FIG. 2 as the center.

Figure 3 shows a YZ cross section of the lens device 100 when the operation ring 61 is in the same 0° position as in Figure 2, and shows a cross section along line B-B in Figure 1. When the operation ring 61 is in the 0° position, the tilt axis β faces horizontally. Figure 4 shows a YZ cross section (cross section along line B-B) of the lens device 100 when the operation ring 61 is rotated from the 0° position to the clockwise operation end (+90° position). When the operation ring 61 is in the +90° position and -90° position, the tilt axis β faces vertically. The rotational position of the operation ring 61 is detected by a ring rotation detection unit (rotation detection means) (not shown) configured using a potentiometer, encoder, etc.

To make it easier for the user to understand when returning the operation ring 61 to the 0° position from a rotation position other than the 0° position, a click mechanism may be provided that generates a clicking sensation when the operation ring 61 reaches the 0° position. Also, a click mechanism may be provided that generates a clicking sensation when the operation ring 61 reaches an intermediate position such as the ±45° position.

An operation switch (second operation member) 71 is disposed at one circumferential location on the operation ring 61, located in a direction perpendicular to the tilt axis β from the optical axis α (i.e., in the same phase as the drive unit 41). Therefore, as the operation ring 61 rotates, the operation switch 71 and drive unit 41 also move around the optical axis α. For example, as shown in Figures 2 and 3, when the operation ring 61 is in the 0° position, the operation switch 71 and drive unit 41 are also in the 0° position, and as shown in Figure 4, when the operation ring 61 is in the +90° position, the operation switch 71 and drive unit 41 are also in the +90° position. Similarly, when the operation ring 61 is in the -90° position, the operation switch 71 and drive unit 41 are also in the -90° position.

When the operation ring 61 is viewed from the radial outside in FIG. 5, the operation switch 71 has two operation parts 71A and 71B on both sides of a plane (YZ plane) γ perpendicular to the optical axis α. Each of the operation parts 71A and 71B has a built-in push switch, and the operation direction of each of them is a direction perpendicular to the direction parallel to the optical axis α (-Y direction). However, the operation switch 71 may be a seesaw-type switch having two operation parts whose operation directions are perpendicular or inclined to the direction parallel to the optical axis α, or a slide-type switch that can be slid in two directions parallel to the optical axis α (±X directions). Furthermore, a dial-type switch that can be rotated forward and backward (±X directions) around an axis extending in the tangential direction of the operation ring 61 in FIG. 2 may be used. In this way, the operation switch 71 may be an operation member whose operation directions are two directions symmetrical with respect to the YZ plane γ perpendicular to the optical axis α.

The switch operation detection unit 72 is fixed to the guide tube 31. The switch operation detection unit 72 has detection units 72A and 72B that detect the operation of the operation units 71A and 71B of the operation switch 71, respectively. The switch operation detection unit 72 may be fixed to the operation ring 61. The FPC 721 that connects the switch operation detection unit 72 and the control board 102 has a bent portion whose extension direction is reversed at one location in the circumferential direction around the optical axis, and the bent portion moves in the circumferential direction as the operation ring 61 is rotated, allowing for smooth rotation of the operation ring 61.

Next, the configuration of the tilt mechanism (tilt means) that tilts the holding frame 21 (lens 11) using the drive unit 41 will be described. A drive receiver 212 is provided at a position on the holding frame 21 that is in the same phase as the drive unit 41 in the circumferential direction. A groove is formed in the drive receiver 212 that extends in a direction perpendicular to the axial direction of the lead screw 411 of the drive unit 41, and a pin provided on a rack 412 that meshes with the lead screw 411 engages with this groove.

When the drive unit 41 is driven to rotate the lead screw 411, the rack 412 moves in the axial direction of the lead screw 411 (a direction parallel to the optical axis α), thereby causing the holding frame 21 having the drive receiving portion 212 to tilt around the tilt axis β.
When the operation section 71A of the operation switch 71 is operated, the detection section 72A of the switch operation detection section 72 detects this and outputs a signal to the control section 81. The control section 81, which has received this signal, controls the drive of the drive section 41 to rotate the lead screw 411 in the forward direction. This causes the holding frame 21 to tilt in the A direction shown in FIG. 1. When the operation section 71B of the operation switch 71 is operated, the detection section 72B of the switch operation detection section 72 detects this and outputs a signal to the control section 81. The control section 81, which has received this signal, controls the drive of the drive section 41 to rotate the lead screw 411 in the reverse direction. This causes the holding frame 21 to tilt in the B direction shown in FIG. 1. In this way, the lens 11 is tilted relative to the imaging surface of the imaging device, thereby obtaining a tilt effect.

The tilt axis β can rotate within a range of 180° around the optical axis α, and the lens 11 can be tilted in two directions (A and B directions), so a two-way tilt effect can be obtained regardless of the phase around the optical axis α on the imaging surface.

The control unit 81 also controls the drive amount of the drive unit 41 according to the duration of operation of the operation switch 71 (operation units 71A and 71B). This makes it possible to adjust the tilt amount of the lens 11, i.e., the degree of the tilt effect.

In this embodiment, the lens 11 is disposed inside the exterior fixed barrel 101, and since the appearance of the exterior fixed barrel 101 does not change even when the lens 11 is tilted, a configuration is required to inform the user in which direction the tilt axis β of the lens 11 extends. It is possible to provide an indicator on the operation ring 61 or in its vicinity that visually indicates the direction in which the tilt axis β extends, but in this case the user must look away from the subject to look at the indicator.

In this embodiment, the operation switch 71 is provided at a position on the operation ring 61 in a direction perpendicular to the optical axis α and the tilt axis β. Therefore, the user can easily know the direction of the tilt axis β from the position of the operation switch 71 around the optical axis α, in other words, the direction (phase) around the optical axis α where the tilt effect is obtained, without taking his/her eyes off the subject. Moreover, by providing the operation switch 71 on the operation ring 61, the user can rotate the operation ring 61 by placing his/her hand on the operation switch 71, and there is no need to move his/her hand from the rotation operation of the operation ring 61 to the operation of the operation switch 71. Since the rotation range of the operation ring 61 is from the 0° position to the +90° position and the -90° position, the user can rotate the operation ring 61 in the entire rotation range while keeping his/her hand on the operation switch 71. Furthermore, by making the operation direction of the operation switch 71 two directions symmetrical with respect to the plane γ perpendicular to the optical axis α, the user can intuitively associate the two directions with the tilt direction of the lens 11.

Therefore, according to this embodiment, the user can intuitively and quickly change the phase in which the tilt effect is obtained and the direction in which the tilt effect is obtained in that phase.

Figures 6 and 7 show a rear monitor 301 as a display unit of a digital camera 300 as an imaging device to which a lens device 100 is attached. The camera 300 can take still images and videos through the lens device 100. The rear monitor 301 in each figure displays a live view image (image of a strawberry) captured through the imaging element in the camera 300 and a tilt guide 302 that serves as a guide for tilt effects. The camera 300 receives information indicating the rotation position of the operation ring 61 detected by the ring rotation detection unit from the control unit 81 of the lens device 100 via communication, and displays the tilt guide 302 on the rear monitor 301 based on the rotation position information.

In the tilt guide 302, the straight line 302C indicates the direction of the tilt axis β that rotates around the optical axis α by rotating the operation ring 61. Figure 6 shows the state in which the operation ring 61 is in the 0° position and the tilt axis β faces horizontally, and Figure 7 shows the state in which the operation ring 61 is in the +90° position and the tilt axis β faces vertically. The direction perpendicular to the tilt axis β is the phase in which the tilt effect is obtained.

The tilt guide 302 also includes tilt effect displays 302A and 302B on both sides of the straight line 302C, which show the direction in which a tilt effect can be obtained in response to the operation of the operation parts 71A and 71B of the operation switch 71, and show the tilt effect. Specifically, in FIG. 6, the tilt effect display 302A shows an arrow indicating the upward direction, which is the direction in which a tilt effect can be obtained in response to the operation of the operation part 71A of the operation switch 71, and "upper front blur" which shows that the upper side will be in front focus as a tilt effect. On the other hand, the tilt effect display 302B shows an arrow indicating the downward direction, which is the direction in which a tilt effect can be obtained in response to the operation of the operation part 71B of the operation switch 71, and "lower front blur" which shows that the lower side will be in front focus as a tilt effect.

7, the tilt effect display 302A displays an arrow indicating the right side, which is the direction in which the tilt effect is obtained by operating the operation unit 71A of the operation switch 71, and "right front blur" indicating that the right side will be in front focus as a tilt effect. Meanwhile, the tilt effect display 302B displays an arrow indicating the left side, which is the direction in which the tilt effect is obtained by operating the operation unit 71B of the operation switch 71, and "left front blur" indicating that the left side will be in front focus as a tilt effect.

When the operation ring 61 is at the -90° position, the tilt axis β also faces vertically, but in this case, the tilt effect display 302A for the operation of the operation unit 71A displays a left-facing arrow and "left front blur," and the tilt effect display 302B for the operation of the operation unit 71B displays a right-facing arrow and "right front blur."

In this way, by displaying the tilt guide 302 on the camera 300, the user can confirm the phase in which the tilt effect can be obtained, and can further confirm the operation section (71A, 71B) of the operation switch 71 that corresponds to the direction of the tilt effect that is desired to be obtained in that phase. This allows for quicker and more accurate operation. Note that the tilt guide only needs to display at least one of the direction in which the tilt effect can be obtained and the tilt effect itself.

The detection result by the switch operation detection unit 72 may be transmitted to the camera 300, and the camera 300 may display the tilt effect display corresponding to the operated one of the operation units 71A and 71B of the operation switch 71 in a different color or brightness so as to emphasize it more than the other tilt effect display. This allows the user to be more clearly informed of the tilt effect that can be obtained.

In addition, while Figures 6 and 7 show a case where the tilt guide 302 is displayed on the rear monitor 301 of the camera 300, a similar tilt guide may be displayed on a display unit provided within the viewfinder of the camera 300.

In this embodiment, the tilt axis β and the drive unit 41 actually rotate around the optical axis α with the rotation of the operation ring 61, so that the holding frame 21 is tilted around the tilt axis β regardless of the rotation position of the tilt axis β. In contrast, the holding frame 21 may be held so that it can be tilted around an axis parallel to the Y direction and an axis parallel to the Z direction, and one or two of the two drive units provided in the Y and Z directions from the optical axis may be selected to tilt the holding frame 21 depending on the rotation position of the operation ring 61. In this configuration, the tilt axis and the drive unit do not actually rotate around the optical axis, but a change means is configured to change the direction of the tilt axis by rotating the operation ring 61. In this case, the center position of the lens may be shifted relative to the optical axis, causing a change in axial aberration or a shift in the focus position, but a lens (not shown) that moves to adjust the focus position in response to the shift in the focus position may move in response to the tilt of the lens 11.

In this embodiment, the holding frame 21 is tilted using the drive unit 41 as an actuator controlled in response to the operation of the operation switch 71. In contrast, a dial that can be rotated on the front and rear sides around an axis extending in the tangential direction of the operation ring 61 in FIG. 2 may be provided as a second operating member, and the rotation of the dial may be transmitted to the holding frame 21 via a gear to tilt it. In this case, the user will tilt the holding frame 21 by the operating force of rotating the dial, so the drive unit 41 is not necessary.

Furthermore, in this embodiment, a case has been described in which the guide tube 31 and the holding frame 21 (i.e., the tilt axis β) are rotated around the optical axis α by the rotational operating force of the operating ring 61. In contrast, the rotational position of the operating ring 61 may be detected by the ring rotation detection unit described above, and the control unit may control an actuator that generates a driving force to rotate the guide tube 31 and the holding frame 21 around the optical axis in accordance with the detection result.

Figure 8 shows a YZ cross section perpendicular to the optical axis α (X axis) of lens device 200 according to the second embodiment of the present invention. Figure 9 shows an XY cross section parallel to the optical axis α of lens device 200. Note that Figure 9 is a cross section taken along line CC, which is slightly displaced from the optical axis α in Figure 8. In Figure 9, the left side is the object side (front side) and the right side is the image side (rear side).

The lens device 200 has a lens 12 that produces a tilt effect by shifting in a direction perpendicular to the optical axis α, a holding frame 22 that holds the lens 12, and a base member 25 that holds the holding frame 22 so that it can be shifted. The direction in which the lens 12 shifts to produce the tilt effect (hereinafter referred to as the shift direction) is the direction of one diameter of the lens 12. In this embodiment, by shifting the lens 12, a tilt effect as a tilt effect similar to the tilt effect when the lens is tilted as in embodiment 1 is obtained. The drive unit 23 that drives the lens 12 in the shift direction will be described later.

The base member 25 has shafts 251 at three circumferential positions, and the base member 25 is held by the fixed tube 52 by fitting these shafts 251 into holding holes 521 provided at three circumferential positions on the fixed tube 52.

An exterior fixed barrel 201 serving as a lens barrel is disposed on the outer periphery of the fixed barrel 52. As in the first embodiment, an operating ring (first operating member) 61 is disposed on the outer periphery of the exterior fixed barrel 201 so as to be rotatable around the optical axis α.

Figures 8 and 9 show the YZ and XZ cross sections of the lens device 100 when the operation ring 61 is at the 0° position. In this embodiment, as in the first embodiment, the rotation range of the operation ring 61 around the optical axis α is limited to a range of ±90° with the 0° position shown in Figure 8 as the center.

A lens mount (not shown) that is detachably attached to the camera 300 shown in the first embodiment is provided at the rear end of the exterior fixed barrel 201. A control board 102 is fixed to the rear end of the exterior fixed barrel 101, on which a control unit 81 is mounted as in the first embodiment, and to which a switch operation detection unit 72 is connected via an FPC 721. In this embodiment, a ring rotation detection unit 63 that detects the rotational position of the operation ring 61 is also connected to the control board 102 via an FPC 631.

An operation switch (second operation member) 71 is disposed at one circumferential location on the operation ring 61, located in the shift direction from the optical axis α. Therefore, as the operation ring 61 rotates, the operation switch 71 also moves around the optical axis α. For example, as shown in Figures 8 and 9, when the operation ring 61 is in the 0° position, the operation switch 71 is also in the 0° position, and when the operation ring 61 is in the +90° position or -90° position, the operation switch 71 is also in the +90° position or -90° position.

As shown in FIG. 5 in the first embodiment, the operation switch 71 has two operation parts 71A and 71B on either side of a plane γ perpendicular to the optical axis α, and can be operated in two directions symmetrical with respect to the plane γ. A switch operation detection part 72 is fixed to the exterior fixed barrel 201. The switch operation detection part 72 has detection parts 72A and 72B that detect the operation of the operation parts 71A and 71B of the operation switch 71, respectively, as in the first embodiment.

Next, the configuration of the tilt mechanism (tilt means) that shifts the holding frame 22 (lens 12) will be described. As shown in FIG. 9, a coil 231 is fixed to the holding frame 22, and magnets 232 are fixed to the base member 25 at positions in front of and behind the coil 231. The coil 231 and magnet 232 form a first driving unit (first actuator) 23 as a voice coil type actuator. When the control unit 81 applies electricity to the coil 231 via an FPC (not shown), the holding frame 22 is shifted by the electromagnetic force (driving force) generated between the coil 231 and the magnet 232.

In this embodiment, a second drive unit (second actuator: not shown) having the same configuration as the first drive unit 23 is provided in a Z direction position that is out of phase with the first drive unit 23 by 90° around the optical axis α, which is provided in the Y direction from the optical axis α. The first drive unit 23 drives the holding frame 22 to shift in the ±Y directions, and the second drive unit drives the holding frame 22 to shift in the ±Z directions. The first drive unit 23 and the second drive unit can drive the holding frame 22 to shift in the ±Y directions and in directions oblique to the ±Z directions.

As shown in FIG. 8, when the ring rotation detection unit 63 detects that the operation ring 61 is in the 0° position and the switch operation detection unit 72 detects the operation of the operation switch 71, the control unit 81 energizes the coil 231 of the first drive unit 23. As a result, the holding frame 22 is shifted in the ±Y direction. When the ring rotation detection unit 63 detects that the operation ring 61 is in the +90° position or the -90° position and the switch operation detection unit 72 detects the operation of the operation switch 71, the control unit 81 energizes the coil of the second drive unit. As a result, the holding frame 22 is shifted in the ±Z direction. When the ring rotation detection unit 63 detects that the operation ring 61 is between the 0° position and the ±90° position and the switch operation detection unit 72 detects the operation of the operation switch 71, the control unit 81 energizes the coil 231 of the first drive unit 23 and the coil of the second drive unit. As a result, the holding frame 22 is shifted in a direction oblique to the ±Y direction and the ±Z direction. This configuration and control realizes a change means that changes the direction (phase) of the shift direction of the lens 12 around the optical axis α in response to the rotation of the operation ring 61.

The control unit 81 also controls the drive amount of each drive unit according to the duration of operation of the operation switch 71. This makes it possible to adjust the shift amount of the lens 12, i.e., the degree of the tilt effect.

Figure 10 shows a YZ cross section along line D-D of the lens device 200 shown in Figure 9. The ring rotation detection unit 63 described above has a fixed portion that extends circumferentially and is fixed to the outer periphery of the exterior fixed tube 201, and a detection terminal that is fixed to the operation ring 61 via a terminal holding member 612. The ring rotation detection unit 63 detects the position of the detection terminal, that is, the rotational position of the operation ring 61, by the detection terminal moving on the fixed portion as the operation ring 61 rotates.

FPC721 and FPC631 each have a bent portion whose extension direction is reversed at one location in the circumferential direction around the optical axis α, and the bent portion moves in the circumferential direction as the operation ring 61 is rotated, allowing for smooth rotation of the operation ring 61. FPC721 is supported by an FPC support member 611 made of sheet metal and fixed to the exterior fixed tube 201. FPC631 is supported by the exterior fixed tube 201.

In this embodiment, the operation switch 71 is provided on the operation ring 61 at a position in the shift direction from the optical axis α, so that the user can easily know the phase at which the tilt effect is obtained around the optical axis α from the position of the operation switch 71 around the optical axis α without taking his/her eyes off the subject. Moreover, as in the first embodiment, by providing the operation switch 71 on the operation ring 61, the operation ring 61 can be rotated by placing a hand on the operation switch 71, and there is no need to move the hand from rotating the operation ring 61 to operating the operation switch 71. Furthermore, as in the first embodiment, the operation directions of the operation switch 71 are set to two directions symmetrical with respect to a plane γ perpendicular to the optical axis α, so that the user can intuitively associate the two directions with the direction in which the tilt effect is obtained by shifting the lens 12.

Therefore, in this embodiment as well, the user can intuitively and quickly change the phase in which the tilt effect is obtained and the direction in which the tilt effect is obtained in that phase.

In this embodiment as well, the camera may be caused to display a guide similar to the perspective guide described in the first embodiment with reference to FIGS .
In this embodiment, the case where the holding frame 22 is shifted by the first driving unit 23 and the second driving unit as actuators controlled in response to the operation of the operation switch 71 has been described. In contrast to this, dials that can be rotated forward and backward around an axis extending in the tangential direction of the operation ring 61 in Fig. 8 as the second operating member may be provided at positions in the Y and Z directions from the optical axis. The rotation of these dials may then be transmitted to the holding frame 22 via gears to shift it in the ±Z and ±Y directions. In this case, the first driving unit 23 and the second driving unit are not necessary because the user shifts the holding frame 22 by the operating force of rotating the dial.

In addition to the lens that tilts or shifts to obtain the tilt effect, a lens that tilts or shifts to correct the aberration that occurs when obtaining the tilt effect may be provided in the configurations of the above embodiments.

Furthermore, in each of the above embodiments, the lens device is described as being detachable from the camera as an interchangeable lens, but a lens device of a similar configuration may also be fixed to a camera with an integrated lens.

The above-described embodiments are merely representative examples, and various modifications and variations are possible when implementing the present invention.

11, 12 Lens 101, 201 Exterior fixed barrel (lens barrel)
61 Operation ring (first operation member)
71 Operation switch (second operation member)
100, 200 Lens device

Claims (15)

A lens disposed within the lens barrel;
a tilt means for tilting the lens within the lens barrel about a tilt axis perpendicular to the optical axis;
a first operating member that is rotated around the optical axis on the outer periphery of the lens barrel;
a change unit that changes the orientation of the tilt axis around the optical axis in response to rotation of the first operating member;
a second operating member that is operated to tilt the lens,
The second operating member is
a tilting mechanism that is disposed on the first operating member and that passes through the optical axis and is perpendicular to the tilt axis, and that moves around the optical axis with the rotation of the first operating member;
The lens device according to claim 1, wherein the second operating member is operated in two directions symmetrical with respect to a plane perpendicular to the optical axis. The tilt means is
an actuator that generates a driving force for tilting the lens;
an operation detection means for detecting an operation of the second operating member;
2. The lens device according to claim 1, further comprising a control means for controlling the actuator in response to the operation detected by the operation detection means. The lens device according to claim 1, characterized in that the tilting means tilts the lens by the operating force of the second operating member. The lens device according to any one of claims 1 to 3, characterized in that the change means rotates the tilt axis around the optical axis by the rotational operating force of the first operating member. The change means is
a rotation detection means for detecting a rotation position of the first operating member;
an actuator that generates a driving force to rotate the tilt axis around the optical axis;
4. The lens device according to claim 1, further comprising a control unit that controls the actuator in accordance with the rotational position detected by the rotation detection unit. A lens disposed within the lens barrel;
a shifting means for shifting the lens in the lens barrel in a shifting direction perpendicular to the optical axis;
a first operating member that is rotated around the optical axis on the outer periphery of the lens barrel;
a change unit that changes a direction of the shift direction around the optical axis in response to rotation of the first operating member;
a second operating member that is operated to shift the lens,
The second operating member is
a first operation member that is disposed on the first operation member, that is disposed at a position passing through the optical axis in the shift direction, and that moves around the optical axis with the rotation of the first operation member;
The lens device according to claim 1, wherein the second operating member is operated in two directions symmetrical with respect to a plane perpendicular to the optical axis. The shifting means is
an actuator that generates a driving force for shifting the lens;
an operation detection means for detecting an operation of the second operating member;
7. The lens device according to claim 6, further comprising a control means for controlling the actuator in response to the operation detected by the operation detection means. The lens device according to claim 6, characterized in that the shifting means shifts the lens by the operating force of the second operating member. The change means is
a rotation detection means for detecting a rotation position of the first operating member;
a first actuator and a second actuator which generate driving forces for shifting the lens in two shift directions different from each other;
9. The lens device according to claim 6, further comprising: a control unit that selects an actuator to be controlled from the first and second actuators in accordance with the rotational position detected by the rotation detection unit. The lens device according to any one of claims 1 to 9, characterized in that the operation direction of the second operation member is two directions perpendicular or inclined to a direction parallel to the optical axis. The lens device according to any one of claims 1 to 9, characterized in that the second operating member is operated in two directions parallel to the optical axis. An imaging device to which the lens device according to any one of claims 1 to 5 is detachably attached,
13. An imaging apparatus comprising: a display unit that displays at least one of a direction in which a tilt effect is obtained by tilting the lens and the tilt effect, in accordance with a rotational position of the first operating member. A lens device according to any one of claims 1 to 5;
an imaging element that receives light from the lens device;
13. An imaging apparatus comprising: a display unit that displays at least one of a direction in which a tilt effect is obtained by tilting the lens and the tilt effect, in accordance with a rotational position of the first operating member. An imaging device to which the lens device according to any one of claims 6 to 9 is detachably attached,
an image pickup apparatus comprising: a display unit that displays at least one of a direction in which a tilt effect is obtained by shifting the lens and the tilt effect in accordance with a rotational position of the first operating member; A lens device according to any one of claims 6 to 9 ;
an imaging element that receives light from the lens device;
an image pickup apparatus comprising: a display unit that displays at least one of a direction in which a tilt effect is obtained by shifting the lens and the tilt effect in accordance with a rotational position of the first operating member;