JP2011053240A5 - - Google Patents

Description

Optical equipment

  The present invention relates to an optical device that detects vibration using an angular velocity sensor and an acceleration sensor, and performs a vibration isolation operation in accordance with the vibration.

  An image blur occurs due to a shake of an optical device due to a hand shake or the like. For this reason, an optical apparatus is often equipped with an image stabilizer for reducing or suppressing image blur. The anti-vibration device calculates the shake displacement by integrating the angular velocity of the shake detected using the angular velocity sensor, and shifts the lens and image sensor or operates the variable apex angle prism according to the shake displacement. Do the work.

  An acceleration sensor is also used to detect the acceleration of shake (see Patent Document 1). The angular velocity sensor detects rotational shake (angular shake) in the pitch direction and yaw direction of the optical device, whereas the acceleration sensor is suitable for detecting shift shake in the pitch direction and yaw direction of the optical device. A high image blur reduction effect particularly in macro photography can be obtained by the image stabilization operation corresponding to the detection of the shift shake.

  Furthermore, by detecting shake in the optical axis direction by the acceleration sensor and moving the focus lens in the optical axis direction in accordance with the shake in the optical axis direction, it is possible to reduce focus shake in macro photography.

JP 2009-104017 A

  When an angular velocity sensor or an acceleration sensor is mounted on an optical device, the direction of the detection axis of these sensors (for example, two angular velocity sensors for pitch direction and yaw direction and one acceleration sensor of a two-axis or three-axis type) is set. It is necessary to accurately match the direction of shake detected by each sensor. That is, it is necessary to accurately determine the orientation of each sensor. In addition, it is necessary to ensure good assembly of the optical device.

  Furthermore, optical devices are equipped with drive mechanisms that drive the diaphragm and lens using actuators, and the effects of vibrations generated by these drive mechanisms (that is, generated inside the optical device) are affected by angular velocity sensors and accelerations. It is necessary not to reach the sensor.

  According to the present invention, the orientation of the angular velocity sensor and the acceleration sensor can be determined with high accuracy, and good assemblability can be ensured, and vibration generated inside the optical apparatus can be made less likely to affect each sensor. Provide optical equipment.

Optical apparatus according to one aspect of the present invention is an optical device that performs stabilization operation according to the shake, and the angular velocity sensor and an acceleration sensor for detecting the shake of the angular velocity and acceleration, respectively, the angular velocity sensor and the acceleration sensor There the flexible substrate mounted to hold the flexible substrate, have a, a sensor holding member attached to said optical equipment body, the sensor holding member is formed as a plane facing in different directions, the an angular velocity sensor holding surface and the acceleration sensor holding surface for holding the mounting portion and a mounting portion of the acceleration sensor of the angular velocity sensor in the flexible substrate respectively, as a plane facing the main body side mounting surface formed as a plane on the optical device body It is formed, the mounting et via the vibration absorbing member to the body side mounting surface A holding-member-side attaching surface that is characterized by having a.

  In the present invention, the angular velocity sensor and the acceleration sensor are mounted on a common flexible substrate and the flexible substrate is held together by a sensor holding member, and the sensor holding member has a holding surface dedicated to the mounting portion of each sensor on the flexible substrate. Provided. Further, the main body side mounting surface and the holding member side mounting surface opposite thereto are formed as flat surfaces. As a result, the direction of the sensor can be accurately determined so that the detection axis of each sensor can be detected in a state where both sensors are mounted on the main body via the sensor holding member, and good assembly is possible. Can be secured. In addition, since the vibration absorbing member is interposed between the main body and the sensor holding member, the influence of vibration generated on the main body side (inside the optical device) on both sensors can be reduced.

1 is a cross-sectional view illustrating a configuration of an interchangeable lens that is an embodiment of the present invention and a digital single-lens reflex camera equipped with the interchangeable lens. The perspective view which shows the structure of the periphery of the sensor holding stand in the interchangeable lens of an Example. The perspective view seen from the direction different from FIG. 2 which shows the periphery structure of the said sensor holding stand. Front sectional drawing which shows the periphery structure of the said sensor holding stand.

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

  FIG. 1 shows a configuration of a camera system including an interchangeable lens as an optical apparatus according to an embodiment of the present invention and a digital single-lens reflex camera equipped with the interchangeable lens. In FIG. 1, the direction (optical axis direction) in which the optical axis of the interchangeable lens shown by the alternate long and short dash line extends is the Z direction, the horizontal direction is the X direction, and the vertical direction is the two directions orthogonal to the optical axis. The Y direction is assumed.

  Reference numeral 1 denotes a camera body (hereinafter simply referred to as a camera), and 2 denotes an interchangeable lens attached to the camera 1.

  First, the structure of the camera 1 will be described. In the state shown in FIG. 1, the main mirror 3 is disposed on the optical path of the light beam from the interchangeable lens 2, reflects a part of the light beam, guides it to the finder optical system (7, 8), and transmits the remaining light beam. Let

  A sub mirror 4 is disposed behind the main mirror 3, and the light beam transmitted through the main mirror 3 is reflected and guided to the focus detection unit 5. The main mirror 3 and the sub mirror 4 can be retracted from the optical path by a drive mechanism (not shown).

  The focus detection unit 5 includes an AF sensor and has a function of performing focus detection (detection of the focus state of the interchangeable lens 2) using a so-called phase difference detection method.

  The AF sensor includes a separator lens that splits an incident light beam into two, two secondary imaging lenses that re-image each split light beam, and two light-receiving elements that photoelectrically convert two imaged subject images, respectively. It is comprised by the row | line | column (line sensor). Each line sensor is configured by a plurality of light receiving elements arranged in a cross shape extending in the Y direction and the X direction, and photoelectrically converts the subject image according to the luminance distribution in the Y direction and the X direction.

  Reference numeral 6 denotes an image sensor constituted by a CCD sensor or a CMOS sensor. A subject image formed by the light flux from the interchangeable lens 2 is formed on the light receiving surface (imaging surface) of the image sensor 6. The imaging element 6 photoelectrically converts the subject image and outputs an imaging signal. The exposure amount of the image sensor 6 is controlled by an electronically controlled focal plane shutter (not shown).

  The finder optical system includes a pentaprism 7 and an eyepiece lens 8. Reference numeral 9 denotes a display panel, which displays various information in addition to an image generated from an imaging signal from the imaging device 6.

  In the camera having such a configuration, when a release button (not shown) is operated, an autofocus process and an exposure determination process are performed, and then the exposure of the image sensor 6 and the recording and display operation of the image generated thereby are performed. Is done.

  Next, the interchangeable lens 2 will be described. The photographing optical system housed in the interchangeable lens 2 includes, in order from the object side (subject side), a first lens unit 101 as a fixed lens, a second lens unit 102 as a focus lens, and a third lens as a fixed lens. Lens unit 103. The photographing optical system also includes a fourth lens unit 104 as a focus lens, a fifth lens unit 105 as an anti-vibration lens, and a sixth lens unit 106 as a fixed lens.

  Further, the photographing optical system includes a diaphragm unit 107. The aperture unit 107 is disposed on the front side (object side) of the third lens unit 103 and adjusts the amount of light that passes through the interchangeable lens 2 and reaches the camera 1.

  The second lens unit 102 and the fourth lens unit 104 receive a driving force from the focus unit 108 and move in the optical axis direction to perform focus adjustment.

  Reference numeral 21 denotes a fixed cylinder constituting a part of the main body of the interchangeable lens. The fixed cylinder 21 includes an attachment part 21a for the guide cylinder 22, an attachment part (not shown) for the exterior ring 30, an attachment part (not shown) for the vibration isolation unit 39, and a sixth lens barrel 36. And a mounting portion (not shown) for the electric circuit board 42. The electric circuit board 42 is configured with an electric circuit for controlling the operation of the interchangeable lens and performing various calculations.

  The guide tube 22 is fixed to the mounting portion 21a for the guide tube 22 by using screws or the like, and the exterior ring 30 and the mount 40 are fixed to the mounting portion for the exterior ring 30 by using screws or the like. The vibration isolator unit 39 is fixed to the attachment portion for the vibration isolation unit 39 via a roller (not shown), and the sixth lens barrel 36 is screwed to the attachment portion 21b for the sixth lens barrel 36. It is fixed using etc.

  Reference numeral 22 denotes a guide cylinder that constitutes the main body of the interchangeable lens together with the fixed cylinder 21, and each includes a first rectilinear groove 22a and a second rectilinear groove 22b extending in the optical axis direction, an attachment portion 22c for the fixed cylinder 21, and a front fixed cylinder 23. And a mounting portion 22d. Furthermore, the guide tube 22 has a flat surface portion (main body side mounting surface) 22e for the sensor holding base 300 that holds a sensor for detecting angular velocity and acceleration.

  The guide tube 22 includes a focus unit mounting portion (not shown), a third lens barrel 33 mounting portion (not shown), and a bayonet portion that prevents the cam tube 24 from moving in the thrust direction. 22f.

  The first rectilinear groove 22 a performs rectilinear guidance in the optical axis direction of the second lens barrel 32, and the second rectilinear groove 22 b performs rectilinear guidance of the fourth lens barrel 34. The attachment portion for the third lens barrel 33 and the third lens barrel 33 are fixed via a roller (not shown).

  The guide tube 22 has a notch (not shown) offset from the locus of a focus roller (not shown) attached to the cam tube 24. The guide tube 22 has a holding plate mounting portion (not shown) for holding a flexible printed board that supplies power to a diaphragm unit 107 described later.

  Reference numeral 23 denotes a front fixed cylinder, which includes an attachment part 23a for the guide cylinder 22, an attachment part 23b for the front frame 28, and an attachment part (not shown) for the first lens barrel 31. The attachment portion for the first lens barrel 31 includes a movement blocking portion for preventing the movement of the first lens barrel 31 in the optical axis direction, and a front side fixing of the first lens barrel 31 attached to the first lens barrel 31. It is comprised by the contact part with which the eccentric roller for eccentric adjustment with respect to the pipe | tube 23 contacts.

  Reference numeral 24 denotes a cam cylinder, which engages the first cam groove 24a, the second cam groove 24b, an attachment portion (not shown) for a focus roller (not shown), and a bayonet portion 22f of the guide cylinder 22. And an engaging portion 24c. The cam cylinder 24 is disposed inside the guide cylinder 22 and is in contact with the inner peripheral surface of the guide cylinder 22 at its front end and rear end.

  Reference numerals 25 and 26 denote a first cam follower and a second cam follower, respectively. The first cam follower 25 is fixed to the second lens barrel 32 and engages with the first cam groove 24 a of the cam tube 24 and the first rectilinear groove 22 a of the guide tube 22. The second cam follower 26 is fixed to the fourth barrel 34 and engages with the second cam groove 24 b of the cam barrel 24 and the second rectilinear groove 22 b of the guide barrel 22.

  When the focus unit 108 is driven, a key unit (not shown) that is an output unit of the focus unit 108 rotates around the optical axis. The key portion is engaged with a focus roller (not shown), and the driving force of the focus unit 108 is transmitted as a rotational force to the cam cylinder 24 to which the focus roller is attached. As the cam barrel 24 rotates, the second lens barrel 32 moves in the optical axis direction via the first cam follower 25 while following the relative relationship between the first rectilinear groove 22a and the first cam groove 24a.

  Similarly, the fourth barrel 34 also moves in the optical axis direction while following the relative relationship between the second rectilinear barrel 22b and the second cam groove 24b via the second cam follower 26.

  Reference numeral 27 denotes a focus ring, which has a guide groove portion 27a that engages with a roller (not shown) fixed to the focus unit 108 and rotatably holds the focus unit 108 while preventing the focus unit 108 from moving in the optical axis direction. The focus ring 27 has a groove 27 b that engages with a protrusion (not shown) of the focus unit 108 and transmits the rotation of the focus ring 27 to the focus unit 108.

  The focus unit 108 includes a drive source, the above-described key portion, and the above-described protrusion that engages with the focus ring 27. The drive source and the electric circuit board 42 are connected by a flexible printed circuit board or the like, and the drive source is driven by a drive signal from the electric circuit board 42.

  Reference numeral 28 denotes a front frame, which includes an attachment portion 28a for the front fixed cylinder 23, a screw portion 28b for attaching an accessory such as a filter, and a flange portion 28c for attaching an accessory such as a hood.

  Reference numeral 29 denotes a decorative ring, which is fixed by being screwed into the screw portion 28b of the front frame 28.

  Reference numeral 30 denotes an exterior ring, which is a cover member that covers internal parts for decoration. An operation member (not shown) for switching between a focus function and a vibration isolation function is attached to the exterior ring 30.

  Reference numeral 31 denotes a first lens barrel, which has an abutting portion that abuts on the front fixed barrel 23 and a roller mounting portion (not shown) to which a roller (not shown) is fixed.

  Reference numeral 32 denotes a second lens barrel as a movable member that can move in the optical axis direction. A seat portion 32 a that fixes the first cam follower 25 and a guide portion that engages with an arm portion 38 c of the sub-aperture unit 38 on the outer periphery thereof. 32b.

  Reference numeral 33 denotes a third lens barrel having an attachment portion (not shown) fixed to the guide tube 22 via a roller (not shown). The third lens barrel 33 has an attachment portion (not shown) to which the diaphragm unit 107 constituted by the main diaphragm unit 37 and the sub-aperture unit 38 is fixed, and a drive section (see FIG. (Not shown).

  Reference numeral 34 denotes a fourth lens barrel, which has a seat portion 34 a for fixing the second cam follower 26.

  Reference numeral 35 denotes a fifth lens barrel that corrects (reduces) image blur caused by camera shake or the like by shifting in a plane orthogonal to the optical axis by the drive unit 39a of the image stabilization unit 39.

  Reference numeral 36 denotes a sixth lens barrel having an attachment portion 36 a fixed to the fixed cylinder 21.

  The first lens barrel 31 to the sixth lens barrel 36 hold the first lens unit 101 to the sixth lens unit 106, respectively.

  The main aperture unit 37 is disposed on the object side of the third lens barrel 33. The main aperture unit 37 includes a plurality of aperture blades (hereinafter referred to as a main aperture blade group) 37a and an aperture actuator (not shown) as a drive source for driving the main aperture blade group 37a in the opening / closing direction. . One end of a flexible printed board (not shown) is connected to the main aperture unit 37, and the other end is connected to the electric circuit board 42. The aperture actuator is driven by the drive signal from the electric circuit board 42, and the main aperture blade group 37a is moved in the opening / closing direction, whereby the area of the aperture aperture as the light passage opening formed by the main aperture blade group 37a. (Main aperture diameter) is changed.

  The sub-aperture unit 38 is disposed closer to the object side than the main aperture unit 37. The sub diaphragm unit 38 includes a plurality of diaphragm blades (hereinafter referred to as a sub diaphragm blade group) 38a and a rotating member 38b that rotates around the optical axis to move the sub diaphragm blade group 38a in the opening / closing direction. An arm portion 38 c extends from the rotating member 38 b toward the object side, and the arm portion 38 c is engaged with the guide portion 32 b of the second lens barrel 32.

  As the second lens barrel 32 moves straight in the optical axis direction for focusing, the rotating member 38b rotates through the arm portion 38c, and the sub diaphragm blade group 38a moves in the opening / closing direction.

  The image stabilization unit 39 includes a drive unit 39a that shifts the fifth lens barrel 35 within a plane perpendicular to the optical axis (hereinafter referred to as a shift plane). One end of a flexible printed board (not shown) is connected to the drive unit 39a, and the other end is connected to the electric circuit board 42. The drive unit 39a is driven by the drive signal from the electric circuit board 42, and the fifth lens barrel 35 is shifted in the shift plane.

  A mount member 40 has an opening 40a, a bayonet claw 40b for enabling bayonet coupling to the camera body, and a seat (not shown) fixed to the fixed cylinder 21 with screws. A back cover 43 is attached to the inside of the opening 40a of the mount member 40, and the inner peripheral surface (the surface facing the optical path) of the back cover 43 is subjected to antireflection treatment.

  Reference numeral 41 denotes a contact member attached to the mount member 40 and holds a contact pin 41 a connected to the electric circuit board 42. The contact pin 41a makes contact with a contact pin (not shown) on the camera body side when the interchangeable lens is mounted on the camera body, thereby enabling information transmission with the camera body.

  The structure around the sensor holding table 300 will be described with reference to FIGS. 2, 3, and 4.

  Reference numeral 301 denotes a flexible substrate. On the flexible substrate 301, vibration gyros 302 and 303 are mounted as angular velocity sensors for detecting angular velocities of rotational shake (angular shake) in the pitch direction and yaw direction applied to the interchangeable lens 2, respectively. Has been. On the flexible substrate 301, a three-axis type acceleration sensor 304 for detecting the shift shake in the pitch direction and the yaw direction applied to the interchangeable lens 2 and the acceleration of the shake in the optical axis direction is mounted. Further, on the flexible substrate 301, peripheral elements such as resistors and capacitors constituting the peripheral circuit of each sensor are mounted.

  A flexible substrate 301 is affixed to the sensor holding base (sensor holding member) 300 with a double-sided tape. Thereby, the vibration gyros 302 and 303 and the acceleration sensor 304 mounted on the flexible substrate 301 are held by the sensor holding base 300 together with the flexible substrate 301.

  The sensor holding base 300 is formed with a flat portion (holding member side mounting surface) 300a facing the flat portion 22e of the guide tube 22 described above. A vibration absorbing member 305 is disposed between the flat portions 22e and 300a. By providing a double-sided tape on both surfaces of the vibration absorbing member 305 and attaching the vibration absorbing member 305 and the two flat surface portions 22e and 300a, the sensor holding base 300 (the flat surface portion 300a) vibrates in the guide tube 22 (the flat surface portion 22e). It is attached via an absorbing member 305. Since the vibration absorbing member 305 is interposed between the guide tube 22 and the sensor holding base 300, unnecessary vibrations from the main body side constituted by the guide tube 22 and the fixed tube 21 are caused by the vibration gyros 302 and 303 and the acceleration sensor 304. Can be difficult to be transmitted to. For this reason, it is possible to avoid the influence of the vibration from reaching the outputs of the vibration gyros 302 and 303 and the acceleration sensor 304.

  The vibration gyro 302 detects an angular velocity in the pitch direction indicated by an arrow D in FIG. In order for the vibration gyro 302 to accurately detect the angular velocity in the pitch direction, the direction of the detection axis of the vibration gyro 302 needs to match the pitch direction. For this purpose, the placement accuracy of the flat surface portion 300b as the angular velocity sensor holding surface to which the mounting portion of the vibration gyro 302 of the flexible substrate 301 is attached is important.

  Similarly, the vibrating gyroscope 303 detects an angular velocity in the yaw direction indicated by an arrow E in FIG. In order for the vibration gyro 303 to accurately detect the angular velocity in the yaw direction, the direction of the detection axis of the vibration gyro 303 needs to match the yaw direction. For this purpose, the placement accuracy of the flat surface portion 300c as the angular velocity sensor holding surface to which the mounting portion of the vibration gyro 303 of the flexible substrate 301 is affixed is important.

  Furthermore, in order to accurately detect the acceleration in the pitch direction and the yaw direction and the acceleration in the optical axis direction by the acceleration sensor 304, the directions of the three detection axes of the acceleration sensor 304 match the pitch direction, the yaw direction, and the optical axis direction. Need to be. For this purpose, the placement accuracy of the flat surface portion 300d as the acceleration sensor holding surface to which the mounting portion of the acceleration sensor 304 of the flexible substrate 301 is attached is important.

The detection axes of the vibration gyros 302 and 303 and the acceleration sensor 304 used in this embodiment extend in a direction parallel to each surface of the rectangular parallelepiped package. For this reason, in this embodiment, the flat surface portion 300a that is a mounting surface of the sensor holding base 300 with respect to the guide tube 22 and the flat surface portions 300b (first flat surface portions) and 300c (second flat surface) that are holding surfaces of the vibration gyros 302 and 303 are used . Are arranged as a plane parallel to the optical axis direction. In addition, the plane portion 300d (third plane portion) that is a holding surface of the acceleration sensor 304 is disposed as a plane orthogonal to the optical axis direction. That is, the plane portions 300b, 300c, and 300d as sensor holding surfaces are planes that face different directions (orthogonal directions) .

  Conventionally, a vibration gyroscope and an acceleration sensor are separately attached to a guide tube or the like, and the attachment accuracy is also secured separately. On the other hand, in the present embodiment, the vibration gyros 302 and 303 and the acceleration sensor 304 are mounted on the flexible substrate 301 common to them, and then fixed together on the sensor holding base 300, and the sensor holding base 300 is fixed to the guide tube 22. It is trying to be attached to. For this reason, the mounting accuracy of the vibration gyros 302 and 303 and the acceleration sensor 304 can be ensured while improving the assemblability as compared with the prior art.

  In particular, when a vibration absorbing member is interposed between the vibration gyro and the acceleration sensor and the guide tube, it is very troublesome to prepare and attach separate vibration absorbing members to the vibration gyro and the acceleration sensor. Also from this point, in this embodiment, it is only necessary to dispose one vibration absorbing member 305 between the sensor holding base 300 and the guide tube 22, so that the assembly is easy and the vibration gyros 302 and 303 and the acceleration sensor 304 are Mounting accuracy is also easier to guarantee.

  Next, a method for mounting the vibration gyros 302 and 303 and the acceleration sensor 304 on the flexible substrate 301, a method for holding the flexible substrate 301 by the sensor holding base 300, and a method for attaching the sensor holding base 300 to the guide tube 22 will be described. To do.

  First, vibration gyros 302 and 303, an acceleration sensor 304, and peripheral elements are mounted on the flexible substrate 301. The flexible substrate 301 is a double-sided flexible substrate in which a conductive pattern is formed on both sides. One side of the double-sided tape is attached to the entire back surface of the flexible substrate 301 that is attached to the sensor holding base 300.

  Next, the flexible substrate 301 is positioned and fixed to the sensor holding base 300 using the double-sided tape. At this time, the protrusions 300e and 300f of the sensor holding base 300 and the recesses 301a and the end surface 301b of the flexible substrate 301 are aligned, and the mounting portion of the acceleration sensor 304 on the flexible substrate 301 is attached to the flat portion 300d of the sensor holding base 300. . Then, the mounting portions of the vibration gyros 302 and 303 on the flexible substrate 301 are attached to the planar portions 300b and 300c while the flexible substrate 301 is bent at a plurality of locations along the planar portions 300b and 300c of the sensor holding base 300, respectively.

  With respect to these bent portions of the flexible substrate 301, it is preferable to form an opening in a cover film that covers the front or back surface of the flexible substrate 301 so that the strength (strain) of the portion is weakened so that the flexible substrate 301 can be easily bent.

  By aligning the end surface 301 c of the flexible substrate 301 with the protrusion 300 g of the sensor holding table 300, the displacement of the flexible substrate 301 with respect to the sensor holding table 300 can be prevented.

  In this way, the positioning and fixing of the flexible substrate 301 on which the vibration gyros 302 and 303 and the acceleration sensor 304 are mounted to the sensor holding base 300 is completed.

  Next, the sensor holding base 300 is attached to the guide tube 22. In the sensor holding base 300, the flat portion 300a that is a mounting surface to the guide cylinder 22 and the flat portion 300d that is a holding surface of the acceleration sensor 304 are orthogonal to each other and adjacent to each other. This is effective for minimizing the displacement of the direction of the acceleration sensor 304 as much as possible.

  One side of the vibration absorbing member 305 is affixed to the guide tube 22e with a double-sided tape, and the flat surface portion 300a of the sensor holding base 300 is affixed to the opposite surface with a double-sided tape. At this time, the shaft tool is inserted in advance into the two holes 300h and 300i (provided on the back side of the flat surface portion 300d) provided in the sensor holding base 300. Positioning of the rotation direction on the plane parallel to the flat portions 22e and 300a with respect to the guide tube 22 of the sensor holding base 300 by inserting the shaft tool into two holes (not shown) provided in the guide tube 22. Can be done accurately.

  As described above, in this embodiment, the sensor holding base 300 is provided with a holding surface dedicated to the mounting portions of the vibration gyros 302 and 303 and the acceleration sensor 304 on the flexible substrate 301. Then, the sensor holding base 300 holding the vibration gyros 302 and 303 and the acceleration sensor 304 is attached to the guide tube 22. As a result, the orientation of the acceleration sensor 304 and the vibration gyros 302 and 303 attached to the guide cylinder 22 via the sensor holding base 300 can be accurately determined so as to match the direction of shake detected by their detection axes. . Further, the vibration gyros 302 and 303 and the acceleration sensor 304 are collectively held on the sensor holding base 300, which is advantageous in terms of space efficiency and is effective for downsizing the interchangeable lens 2.

  The connection portion 301 h of the flexible substrate 301 is inserted into a connector 311 mounted on the connection flexible substrate 310. Thereby, the vibration gyros 302 and 303 and the acceleration sensor 304 are electrically connected to the main board 42.

  In the present embodiment, another flat surface portion 300j as a mounting surface on the holding member side is provided on the holding portion side of the vibration gyros 302 and 303 in the sensor holding base 300. Further, the guide tube 22 is provided with a flat surface portion 22f as a main body side mounting surface so as to face the flat surface portion 300j, and these flat surface portions 300j and 22f are provided with a double-sided tape via a vibration absorbing member 305 '. It is pasted. In this way, the sensor holding base 300 is more firmly fixed to the guide cylinder 22 by attaching the sensor holding base 300 to the guide tube 22 (the flat surface portions 22e and 22f) in the flat surface portion 300j in addition to the flat surface portion 300a. In addition, it is possible to further improve the assemblability. In addition to the flat portions 300a and 300j, another attachment surface may be provided.

  Each embodiment described above is only a representative example, and various modifications and changes can be made to each embodiment in carrying out the present invention.

  For example, in the above embodiments, an interchangeable lens equipped with an angular velocity sensor, an acceleration sensor, and a shift unit has been described as the optical apparatus of the present invention. However, the entire single-lens reflex camera system including the interchangeable lens and the single-lens reflex camera is disclosed. It is good also as an optical apparatus.

  In the above-described embodiments, the case where the lens is shifted in the direction orthogonal to the optical axis in the image stabilization operation has been described. However, the image sensor is shifted in the direction orthogonal to the optical axis, or the so-called variable apex angle prism. May be changed.

  It is possible to provide an optical device with good assembling property while mounting an angular velocity sensor and an acceleration sensor.

22 Guide tube 300 Sensor holder 302, 303 Vibration gyro 304 Acceleration sensor 305, 305 'Vibration absorbing member

Claims (4)

An optical device that performs an anti-vibration operation in response to vibration,
An angular velocity sensor and an acceleration sensor for detecting the angular velocity and acceleration of the shake, respectively;
A flexible substrate on which the angular velocity sensor and the acceleration sensor are mounted;
Wherein holding the flexible substrate, anda sensor holding member attached to said optical equipment Body,
The sensor holding member is
An angular velocity sensor holding surface and an acceleration sensor holding surface, which are formed as planes facing different directions, and hold the mounting portion of the angular velocity sensor and the mounting portion of the acceleration sensor on the flexible substrate, respectively.
Said formed as a plane facing the main body side mounting surface formed as a plane in the optical device body, the holding-member-side attaching surface attached via a vibration absorbing member to the body side mounting surface,
An optical apparatus comprising: The optical device body has a plurality of body-side mounting surfaces,
The sensor holding member has a plurality of the holding member side mounting surfaces,
The optical apparatus according to claim 1, wherein the sensor holding member is attached to the optical apparatus main body via a plurality of vibration absorbing members. 3. The optical according to claim 1, wherein a circuit is disposed on the front surface and the back surface of the flexible substrate, and an opening is formed in a cover member that covers a bent portion of either the front surface or the back surface. machine. The sensor holding member is orthogonal to the first plane part parallel to the optical axis of the optical device, a second plane part orthogonal to the first plane part and parallel to the optical axis, and orthogonal to the optical axis. A third planar portion,
The angular velocity sensor is disposed on the first and second plane portions,
4. The optical apparatus according to claim 1, wherein the acceleration sensor is arranged on the third plane portion. 5.