JP2018165755A - Optical device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical device which suppresses generation of backlash even when an attitude changes, so as to improve responsiveness when a lens moves in its optical axis direction.SOLUTION: An optical device includes: a holding member which holds a lens, and which can move along an optical axis direction of the lens; a guide member for guiding the movement of the holding member along the optical axis direction; and a pressing member for pressing one of the guide member and the holding member according to an attitude of the optical device in a manner to bring the guide member into contact with the holding member.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an optical apparatus.

An optical device such as a camera includes a lens driving device that moves the lens in the optical axis direction in order to enable zooming and focusing.
Patent Document 1 discloses a lens driving device that prevents U-groove backlash by urging the moving ring to a U-groove guide bar in order to smoothly and accurately move the moving ring that holds the lens in the optical axis direction. It is disclosed.

JP-A-8-240758

However, the technique of Patent Document 1 does not consider the case where the attitude of the lens driving device changes. In other words, depending on the posture of the lens driving device, a predetermined urging force may not be obtained. In this case, there is a possibility that a backlash occurs between the moving ring and the U-groove guide bar.
The present invention has been made in view of the above-described problems, and suppresses the occurrence of backlash even when the posture is changed, thereby improving the responsiveness when the lens moves in the optical axis direction. The purpose is to improve.

  The present invention is an optical apparatus comprising: a holding member that holds a lens and is movable along the optical axis direction of the lens; and a guide member that guides the movement of the holding member along the optical axis direction. According to the posture of the optical apparatus, the optical device includes a pressing member that presses at least one of the guide member and the holding member so that the guide member and the holding member are in contact with each other.

  Even when the posture is changed, the response when the lens moves in the optical axis direction can be improved by suppressing the occurrence of backlash.

It is a figure which shows an example of a structure of an imaging system. It is a figure which shows an example of a structure of a 1st drive part. It is a figure which shows an example of an internal structure of the lens apparatus of 1st Embodiment. It is an enlarged view which shows an example of an internal structure of the lens apparatus of 1st Embodiment. It is a flowchart which shows an example of a process of an imaging system. It is a perspective view which shows an example of an internal structure of the lens apparatus of 2nd Embodiment.

Embodiments according to the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram illustrating an example of a configuration of an imaging system.
The imaging system includes a lens device 10 and an imaging device 20 on which the lens device 10 is replaceably mounted. The lens device 10 corresponds to an example of an optical device.

The lens device 10 includes a lens 11, a holding member 12, a first drive unit 13, a second drive unit 14, a first drive control unit 15, a second drive control unit 16, and an attitude detection unit 17. Prepare.
The lens 11 forms a subject image on the image sensor 22 of the imaging device 20. The number of lenses 11 is not limited to one, and a plurality of lens groups may be used. The holding member 12 holds the lens 11. The holding member 12 is movable along the optical axis direction of the lens 11.

The first drive unit 13 drives the holding member 12 along the optical axis direction. The first drive unit 13 can be a unitized ultrasonic motor, which will be described later. The 2nd drive part 14 drives the press member 65 mentioned later. A motor can be used for the second drive unit 14.
The first drive control unit 15 controls the drive of the first drive unit 13. The second drive control unit 16 controls the drive of the second drive unit 14. The second drive control unit 16 corresponds to an example of a control unit.
The posture detection unit 17 detects the posture of the lens device 10 or the imaging device 20 (hereinafter referred to as the posture of the imaging device 20), and outputs the detected information to the control unit 23 of the imaging device 20. An acceleration sensor can be used for the posture detection unit 17. The posture detection unit 17 is not limited to the case where the lens device 10 is provided, but may be provided in the imaging device 20.

The imaging device 20 includes a main body 21, an imaging element 22, and a control unit 23.
The main body 21 mounts the lens device 10 in a replaceable manner. The image sensor 22 photoelectrically converts the subject image formed by the lens 11 to generate an image signal, and outputs the generated image signal to the control unit 23. The control unit 23 controls the entire imaging system. The control unit 23 detects the focus state based on the contrast of the image obtained from the imaging signal and the phase difference between the images. The control unit 23 outputs information on the drive target value calculated from the focus state to the first drive control unit 15. The first drive control unit 15 drives the first drive unit 13 so that the holding member 12 holding the lens 11 moves in a direction substantially parallel to the optical axis O during imaging. Therefore, the focused subject image can be formed on the image sensor 22.

  Further, the control unit 23 converts the acceleration signal detected by the posture detection unit 17 into posture information of the lens device 10 and outputs it to the second drive control unit 16. The second drive control unit 16 determines whether or not to drive the second drive unit 14 based on the posture information. If it is determined to drive the second drive control unit 16, the second drive control unit 16 moves the pressing member 65 in a direction that suppresses the occurrence of play.

  FIG. 2 is a diagram illustrating the configuration of the first drive unit 13, FIG. 2A is a perspective view illustrating the configuration of the first drive unit 13, and FIG. 2B is a cross-section of the first drive unit 13. FIG. In each of the drawings including FIG. 2, the direction parallel to the optical axis is indicated by the X axis, and the direction orthogonal to the X axis is indicated by the Y axis and the Z axis as necessary. In the present embodiment, the first drive unit 13 is a unitized ultrasonic motor.

The first drive unit 13 includes a fixed unit 31 and a moving unit 35. In the first drive unit 13, the moving unit 35 moves with respect to the fixed unit 31, whereby the holding member 12 and the lens 11 held by the holding member 12 move along the X-axis direction.
The fixed portion 31 includes a base 32, a cover plate 33, and a friction member 34. The base 32 has a frame shape that opens in the Z-axis direction. The cover plate 33 is fixed to the base 32 so as to close the opening of the base 32 from above. The friction member 34 is fixed to the base 32 so as to close the opening from the lower side of the base 32. A moving portion 35 is movably accommodated in a space surrounded by the base 32, the cover plate 33, and the friction member 34.

  The moving unit 35 includes an ultrasonic transducer 36, a pressurizing mechanism 40, and a mechanism holding member 45. The ultrasonic transducer 36 includes a piezoelectric element 37 and a diaphragm 38 as an elastic body. The piezoelectric element 37 and the diaphragm 38 are fixed with an adhesive or the like. The piezoelectric element 37 excites ultrasonic vibration by applying a voltage. The diaphragm 38 includes a contact portion 39 (see FIG. 2B). The contact portion 39 contacts the friction member 34 while being pressed by the pressurizing mechanism 40. When the piezoelectric element 37 is excited with ultrasonic vibration, a resonance phenomenon occurs in the ultrasonic vibrator 36. At this time, two kinds of standing waves are generated in the ultrasonic vibrator 36, and a substantially elliptical motion is generated in the contact portion 39 of the diaphragm 38.

  The pressurizing mechanism 40 includes a coil spring 41, a spring guide 42, an elastic member 43, and a vibrator holding member 44. The coil spring 41 pressurizes the ultrasonic vibrator 36 toward the friction member 34 via the spring guide 42 and the elastic member 43. One end of the coil spring 41 abuts on the mechanism holding member 45 and the other end abuts on the spring guide 42. The spring guide 42 regulates the pressing direction of the coil spring 41. A part of the spring guide 42 is inserted into a hole 46 formed in the mechanism holding member 45, and is movable along the axial direction of the hole 46. The elastic member 43 is disposed between the ultrasonic transducer 36 and the spring guide 42. The elastic member 43 prevents the spring guide 42 pressed by the coil spring 41 from coming into direct contact with the piezoelectric element 37 and damaging the piezoelectric element 37. A part of the elastic member 43 is inserted into a hole 47 formed in the mechanism holding member 45, and is movable along the axial direction of the hole 47. The vibrator holding member 44 holds the ultrasonic vibrator 36 so as not to obstruct the elliptical motion. Specifically, the vibrator holding member 44 holds the diaphragm 38 of the ultrasonic vibrator 36 by fixing it with an adhesive or the like.

  The mechanism holding member 45 holds the pressure mechanism 40. The mechanism holding member 45 has a substantially box shape with an opening on the lower side, and holds the vibrator holding member 44 so as to be slidable vertically. The mechanism holding member 45 is formed with a moving side V-shaped groove along the X-axis direction on the surface facing the cover plate 33. On the other hand, the cover plate 33 is formed with a fixed-side V-shaped groove along the X-axis direction on the surface facing the mechanism holding member 45. Between the moving side V-shaped groove and the fixed side V-shaped groove, the rolling member 48 is disposed so as to be able to roll while being sandwiched.

Next, an operation in which the moving unit 35 moves with respect to the fixed unit 31 will be described.
The coil spring 41 of the moving unit 35 pressurizes the ultrasonic transducer 36 toward the friction member 34 via the spring guide 42 and the elastic member 43. Therefore, the diaphragm 38 of the ultrasonic transducer 36 contacts the friction member 34 in a pressurized state. On the other hand, the reaction force from the friction member 34 is received by the cover plate 33 of the fixed portion 31 via the moving portion 35 and the rolling member 48.
In this way, when the ultrasonic transducer 36 is in contact with the friction member 34 in a pressurized state, the elliptical motion generated in the ultrasonic transducer 36 is efficient when a drive voltage is applied to the piezoelectric element 37. Is transmitted to the friction member 34. As a result, the moving part 35 is guided by the rolling member 48 sandwiched between the moving side V-shaped groove and the fixed side V-shaped groove, and moves forward and backward in the X-axis direction with respect to the fixed part 31. By moving the moving part 35 back and forth in the X-axis direction, the holding member 12 that holds the lens 11 can be moved along the X-axis direction.
Thus, the lens device 10 functions as a lens driving device that drives the lens 11.

Next, the internal configuration of the lens apparatus 10 will be described with reference to FIGS. 3 and 4.
FIG. 3A is a schematic diagram illustrating a configuration of the lens device 10 when the imaging device 20 is in the normal posture. FIG. 3B is a schematic diagram illustrating the configuration of the lens device 10 when the posture of the imaging device 20 is changed.
FIG. 4A is a diagram showing a configuration around the pressing member 65 corresponding to the posture of FIG. 4B and 4C are diagrams showing a configuration around the pressing member 65 corresponding to the posture of FIG. 3B.

  In the lens device 10, a first guide member 52 and a second guide member 53 are supported by a fixing member 51 such as a housing. The 1st guide member 52 and the 2nd guide member 53 are axial, Comprising: It arrange | positions so that an axis line may become in parallel with the optical axis O, respectively. Here, when viewed from the optical axis direction, the first guide member 52 and the second guide member 53 are positioned symmetrically with respect to the optical axis O. The first guide member 52 and the second guide member 53 guide the movement of the holding member 12 when the holding member 12 moves along the optical axis direction.

  The holding member 12 of the lens 11 has a hole 62 through which the first guide member 52 is inserted and a groove 63 through which the second guide member 53 is inserted. Here, the groove 63 opens in a substantially U shape on the side opposite to the optical axis O of the lens 11. When the second guide member 53 is inserted into the groove 63, the holding member 12 is regulated so as not to rotate in the direction orthogonal to the optical axis direction around the first guide member 53. In order to obtain high responsiveness when the holding member 12 moves in the optical axis direction, it is preferable that there is no backlash between the groove 63 and the second guide member 53. However, in order to reduce the wear and friction load of the second guide member 53, it is necessary to set a play that is a minute play. That is, as shown in FIG. 4A, the groove 63 has a distance between the inner side surface 63a on one side in the groove width direction and the inner side surface 63b on the other side in the groove width direction. It is set larger than the diameter.

  The holding member 12 is connected to the moving unit 35 of the first driving unit 13 via the connecting member 55. The holding member 12 has a shaft hole, and the connecting member 55 and the holding member 12 are pivotally supported via a shaft that passes through the shaft hole. Further, the connecting member 55 and the holding member 12 are urged by a torsion spring 56. The torsion spring 56 corresponds to an example of an urging member. Specifically, the torsion spring 56 biases the connecting member 55 against the holding member 12 in the optical axis direction. Further, the torsion spring 56 applies an urging force in the direction of arrow A shown in FIG. 3A around the shaft that passes through the shaft hole of the holding member 12. Therefore, the connecting member 55 is connected to the moving unit 35 of the first driving unit 13 without any play. Further, the reaction force of the urging force by the torsion spring 56 acts in the direction of arrow B shown in FIG. This reaction force becomes a biasing force that biases the groove 63 of the holding member 12 toward the second guide member 53. When the groove 63 and the second guide member 53 are in contact with each other, the urging force of the torsion spring 56 restricts the holding member 12 from rotating around the optical axis O, and the optical axis O of the lens 11 is moved along the imaging element 22. It is possible to make it substantially coincide with the center of.

Here, as shown in FIG. 3A, when the total mass of the lens 11 and the holding member 12 is m, gravity mg works in the Z-axis direction. Here, the direction of gravity mg shown in FIG. 3A and the direction of arrow B of the urging force by the torsion spring 56 shown in FIG. 3A are substantially the same direction. Therefore, the holding member 12 is urged with a force stronger than the urging force of the torsion spring 56.
Therefore, as shown in FIG. 4A, the inner surface 63a on one side of the groove 63 and the second guide member 53 are in contact with each other under the force of gravity and urging force. That is, the minute play set between the groove 63 and the second guide member 53 is eliminated. Therefore, the responsiveness when the holding member 12 moves along the optical axis direction is improved.

Next, a case where the posture of the imaging device 20 is changed will be described. Here, as illustrated in FIG. 3B, it is assumed that the imaging device 20 is rotated 90 ° about the optical axis O.
At this time, the direction of gravity mg shown in FIG. 3B and the direction of arrow B of the urging force by the torsion spring 56 shown in FIG. 3B are directions in which the forces cancel each other. The biasing force will be weakened.
Therefore, as shown in FIG. 4B, the inner surface 63b on the other side of the groove 63 and the second guide member 53 do not come into contact with each other, and a gap Δd is generated as looseness. Therefore, the responsiveness when the holding member 12 moves along the optical axis direction is deteriorated.

Here, in order to make the groove 63 and the second guide member 53 come into contact with each other even if the biasing force by the torsion spring 56 is weakened as shown in FIG. 3B, the biasing force of the torsion spring 56 is increased. Can be considered. However, if the urging force of the torsion spring 56 is increased, for example, as shown in FIG. 3A, in the case of the posture of the image pickup apparatus 20 that can originally provide a sufficient urging force, the amount of the increased urging force is reversed. An extra friction load is generated between the groove 63 and the second guide member 53. Therefore, the loss of the thrust by the 1st drive part 13 will become large.
Therefore, it is preferable that the urging force of the torsion spring 56 is set to be weak so that the holding member 12 and the second guide member 53 are in contact with each other in the posture of the imaging device 20 in which the urging force is weakened.

Specifically, a structure in which the holding member 12 and the second guide member 53 are brought into contact with each other according to the posture of the imaging device 20 will be described.
The lens device 10 includes a lever-shaped pressing member 65 that presses the second guide member 53 so that the holding member 12 and the second guide member 53 are in contact with each other according to the posture. Here, “pressing” refers to pressing with an applied force. The pressing member 65 is disposed at a position close to the second guide member 53 and a position close to the groove 63 of the holding member 12. However, the pressing member 65 is disposed at a position that overlaps with the second guide member 53 but does not overlap with the groove 63 when viewed from a direction orthogonal to the optical axis O.
The pressing member 65 has a rotating part 66 and a pressing part 67. The rotation unit 66 is connected to the second drive unit 14 and is rotated in a direction orthogonal to the optical axis direction by being driven by the second drive unit 14. The pressing portion 67 is configured integrally with the rotating portion 66 and moves as the rotating portion 66 rotates. The pressing portion 67 moves in a direction approaching the second guide member 53 or a direction away from the second guide member 53 by the rotation of the rotation portion 66.

  The second guide member 53 is supported so as to be slightly movable with respect to the direction orthogonal to the optical axis O with respect to the fixed member 51. Specifically, as shown in FIG. 4, the fixing member 51 has a long hole-like support hole 54. The support hole 54 is an arc-shaped long hole with the optical axis O as the center. However, the support holes 54 are not limited to arc-shaped long holes, but may be straight long holes. The second guide member 53 is supported by the support hole 54 and can move within the range of the long hole of the support hole 54.

In the state of the posture of the imaging device 20 shown in FIG. 4A, the second guide member 53 is positioned below the support hole 54 and is in contact with the inner side surface 63 a on one side of the groove 63. At this time, the pressing member 65 stands by at a position away from the second guide member 53.
When the posture of the imaging apparatus 20 shown in FIG. 4B is changed, the second guide member 53 is located on the center side of the support hole 54. Further, as described above, since the direction of gravity and the direction of the urging force by the torsion spring 56 cancel each other out, a gap Δd is generated between the second guide member 53 and the groove 63.

In the case of the posture of the imaging device 20 as shown in FIG. 4B, the pressing member 65 of the present embodiment rotates in the direction of the arrow C shown in FIG. 4C, that is, toward the second guide member 53. This direction is substantially the same direction as the arrow B direction of the urging force in which the holding member 12 is urged by the torsion spring 56.
Here, when viewed from the optical axis direction, the pressing member 65 transitions from a state where it does not overlap the groove 63 to a state where it overlaps the groove 63. When the pressing member 65 presses the second guide member 53, the second guide member 53 moves along the support hole 54 and contacts the inner side surface 63 b on the other side of the groove 63. Therefore, since the minute play between the groove 63 and the second guide member 53 can be eliminated, the responsiveness when the holding member 12 moves along the optical axis direction is improved.
The pressing member 65 presses the second guide member 53 so as to assist the urging force of the torsion spring 56. Therefore, conversely, when a force is applied from the second guide member 53 toward the pressing member 65, the pressing member 65 can return in the direction opposite to the arrow C direction.

  Further, when the posture of the imaging device 20 as shown in FIG. 4C is changed to the posture of the imaging device 20 as shown in FIG. 4A, the pressing member 65 rotates in a direction away from the second guide member 53. Move. Here, when viewed from the optical axis direction, the pressing member 65 transitions from a state where it overlaps the groove 63 to a state where it does not overlap the groove 63. In other words, it is possible to prevent the frictional load between the groove 63 and the second guide member 53 from becoming an excessive friction load by the pressing member 65 releasing the pressure against the second guide member 53.

  Next, an example of processing of the imaging system that can realize the operation of the pressing member 65 described above will be described with reference to the flowchart of FIG. The flowchart in FIG. 5 is realized by the control unit 23 executing a program stored in the memory.

In S <b> 10, the control unit 23 acquires the acceleration signal detected by the posture detection unit 17.
In S11, the control unit 23 detects the posture of the imaging device 20 by converting the acceleration signal into posture information. The control unit 23 outputs the converted posture information to the second drive control unit 16.
In S12, the second drive control unit 16 determines whether or not the converted attitude information is attitude information (predetermined attitude) stored in advance. Here, the posture information stored in advance is posture information that may cause backlash between the holding member 12 and the second guide member 53 due to a decrease in the biasing force of the torsion spring 56. The posture information stored in advance includes posture information corresponding to the posture as shown in FIG. 4B, for example. If it is determined that the posture information is stored in advance, the process proceeds to S13. If it is determined that the posture information is not stored in advance, the process returns to S11.

In S <b> 13, the second drive control unit 16 drives the pressing member 65 by outputting a drive signal to the second drive unit 14.
In S14, the second drive control unit 16 determines whether or not the pressing member 65 has moved a predetermined distance. When it determines with the pressing member 65 not moving, it returns to S13 and moves the pressing member 65 continuously. On the other hand, if it is determined that the pressing member 65 has moved, the flowchart of FIG. As the pressing member 65 moves, the pressing member 65 presses the second guide member 53, and the second guide member 53 contacts the groove 63.

  Thus, according to the present embodiment, the pressing member 65 presses the second guide member 53 so that the second guide member 53 and the holding member 12 are in contact with each other according to the posture of the imaging device 20. Therefore, in a posture in which the urging force of the torsion spring 56 is reduced, the play between the groove 63 and the second guide member 53 can be eliminated, and the holding member 12 is moved along the optical axis direction. Responsiveness can be improved. On the other hand, in a posture in which the urging force of the torsion spring 56 does not decrease, the pressing member 65 does not press the second guide member 53, so that a decrease in thrust due to an increase in friction load can be suppressed.

  Further, according to the present embodiment, the pressing member 65 presses the second guide member 53 based on the detection result by the posture detection unit 17 that detects the posture of the imaging device 20. Therefore, for example, it is possible to detect the posture of the imaging device 20 in which the urging force when the torsion spring 56 urges the holding member 12 toward the second guide member 53 is reduced. 2 The guide member 53 can be pressed.

  Further, according to the present embodiment, the second guide member 53 is supported by the elongated support hole 54, and the pressing member 65 is along the support hole 54 so that the second guide member 53 and the holding member 12 are in contact with each other. The second guide member 53 is pressed. By pressing the second guide member 53 that does not move along the optical axis direction, the second guide member 53 can be pressed without being affected by the position of the lens 11.

(Second Embodiment)
In the first embodiment, the case where one pressing member 65 presses the second guide member 53 has been described. In the present embodiment, a case where two pressing members 65 press the second guide member 53 will be described.
FIG. 6 is a perspective view showing a configuration around the pressing member 65. As shown in FIG. 6, in the lens device 10 of the present embodiment, two pressing members 65 are arranged at positions separated in the optical axis direction with the holding member 12 or the groove 63 interposed therebetween. When the second drive unit 14 drives the pressing member 65, the pressing member 65 closer to the holding member 12 or the groove 63 (hereinafter referred to as the holding member 12) of the two pressing members 65 is used as the second guide member 53. Drive towards. Since the holding member 12 moves in the optical axis direction, the second guide member 53 can be easily pressed by driving the pressing member 65 closer to the holding member 12, and the second guide member 53 is in contact with the groove 63. It can be made easier. Further, when the holding member 12 is located near the center of the two pressing members 65, the second driving unit 14 drives the two pressing members 65 at the same time. In this case, the second guide member 53 can be prevented from being inclined, and can contact the inner side surface 63b on the other side of the groove 63 in a state substantially parallel to the optical axis. Note that the second drive control unit 16 acquires the position information of the holding member 12 (position information of the lens 11) from the first drive control unit 15 or the control unit 23, so that the pressing member 65 closer to the holding member 12 is pressed. Judgment can be made. The number of pressing members 65 is not limited to two, and may be three or more.

As described above, the present invention has been described together with various embodiments, but the present invention is not limited to these embodiments, and can be modified within the scope of the present invention. May be.
In the above-described embodiment, the imaging system including the lens device 10 and the imaging device 20 on which the lens device 10 is replaceably mounted has been described. be able to. In this case, an imaging device with an integrated lens device corresponds to an example of an optical device. In the case where the lens apparatus is an integral imaging apparatus, the second drive control unit 16 and the control unit 23 correspond to an example of a control unit.

In the above-described embodiment, the case where the pressing member 65 presses the second guide member 53 so that the second guide member 53 and the holding member 12 are in contact with each other according to the posture of the imaging device 20 has been described. Not limited. For example, the pressing member 65 may press the holding member 12 so that the second guide member 53 and the holding member 12 are in contact with each other, or may press the second guide member 53 and the holding member 12.
In the above-described embodiment, the case where the torsion spring 56 is used as the biasing member that biases the holding member 12 to the second guide member 53 has been described. However, the present invention is not limited to this, and other springs may be used.

In the above-described embodiment, the case where the unitized ultrasonic motor is used as the first drive unit 13 has been described. However, the present invention is not limited to this, and any one can be used as long as the holding member 12 can be driven along the optical axis direction. You may use the drive part of such a system. For example, a unitized voice coil motor (VCM) can be used as the first drive unit 13.
In the embodiment described above, the case where a motor is used as the second drive unit 14 has been described. However, the present invention is not limited to this case, and any drive unit may be used as long as the pressing member 65 can be driven. For example, a piezoelectric actuator or a small actuator such as SMA can be used as the second drive unit 14.

(Other embodiments)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

  DESCRIPTION OF SYMBOLS 10: Lens apparatus 11: Lens 12: Holding member 13: 1st drive part 14: 2nd drive part 15: 1st drive control part 16: 2nd drive control part (control means) 17: Posture detection part 20: Imaging device 22: Image sensor 23: Control unit (control means) 56: Torsion spring (biasing member) 53: Second guide member (guide member) 54: Support hole 65: Pressing member

Claims (7)

A holding member that holds the lens and is movable along the optical axis direction of the lens;
A guide member for guiding the movement of the holding member along the optical axis direction,
An optical apparatus comprising: a pressing member that presses at least one of the guide member and the holding member so that the guide member and the holding member are in contact with each other according to a posture of the optical apparatus.   The pressing member presses at least one of the guide member and the holding unit so that the guide member and the holding unit are in contact with each other based on a detection result by a posture detection unit that detects the posture of the optical device. The optical apparatus according to claim 1.   The optical device according to claim 1, wherein the pressing member presses the guide member so that the guide member and the holding member are in contact with each other.   The optical apparatus according to claim 3, wherein the guide member is supported by a long hole-like support hole, and is movable along the support hole by being pressed by the pressing member. A biasing member that biases the holding member toward the guide member;
5. The optical apparatus according to claim 1, wherein the pressing member presses the guide member in a direction substantially the same as a direction biased by the biasing member. At least two of the pressing members are arranged at positions separated in the optical axis direction across the holding member,
According to the position of the lens, at least one of the two pressing members presses at least one of the guide member and the holding portion so that the guide member and the holding portion are in contact with each other. The optical apparatus according to claim 1, wherein the optical apparatus is an optical apparatus.   The optical apparatus according to claim 1, further comprising a control unit that controls driving of the pressing member according to a posture of the optical apparatus.

Images