Finder unit, imaging device

Abstract

To prevent an increase in the size of an electronic apparatus, while ensuring a large rotation angle of a finder unit.SOLUTION: A finder unit 12 is supported by a support mechanism unit 50 movably to a storage state, a drawn state, and a rotation state. The support mechanism unit 50 has a stationary plate 51, an advance plate 52 that is movable in a drawing direction with respect to the stationary plate 51, and a rotary plate 53 that holds the finder unit 12 and is rotatable with respect to the advance plate 52. When the advance plate 52 moves straight forward to the stationary plate 51, friction between a projection 52f of a leaf spring part 52g and a recess 51e of the stationary plate 51 generates a reaction force against the movement, and when the rotary plate 53 rotates with respect to the advance plate 52, friction between the advance plate 52 and the rotary plate 53 with disc springs 53g therebetween at a rotation axis part A generates a reaction force against the rotation.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a finder unit and an imaging device. [Background technology]

[0002] Finder units provided in electronic devices such as imaging devices have been known. For example, in electronic devices equipped with a finder unit such as an electronic viewfinder, the finder unit is disposed at the top of the rear side of the electronic device body. Some devices have a finder unit that can be slid out from the electronic device body and tilted upward from the outstretched state, thereby increasing the degree of freedom in shooting posture.

[0003] In Patent Document 1, the support structure that supports the viewfinder so that it can be pulled out and rotated is composed of two sheet metal members: a base plate fixed to the imaging device and a holder slidably connected to the base plate. In addition, a pair of leaf springs provided on the holder bias the base plate, thereby generating a reaction force through friction that gives a sense of operation when the viewfinder is pulled out and rotated. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Publication No. 2014-202811 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in Patent Document 1, the distance between the contact position of the pair of leaf springs against the base plate and the rotation axis of the holder is long, so the contact position moves along a large arc when the finder rotates. If the finder rotates too much, the leaf springs will come off the fixed plate, so the rotation angle of the finder is limited. On the other hand, if a design is made to increase the rotation angle, the fixed plate would need to be enlarged, which would result in an increase in the size of the imaging device body.

[0006] SUMMARY OF THE INVENTION An object of the present invention is to prevent an increase in the size of an electronic device while ensuring a large rotation angle of a viewfinder unit. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides an electronic device having a finder unit having a lens unit and an eyepiece window, and a support mechanism unit that is held by an electronic device body and movably supports the finder unit in a stored state stored in the electronic device body, a pulled-out state pulled out from the electronic device body in a pull-out direction, and a rotated state in the pulled-out state where the finder unit rotates around a rotation axis that is perpendicular to the pull-out direction, the support mechanism unit including a fixed portion, a rectilinear portion held by the fixed portion so as to be movable in the pull-out direction relative to the fixed portion, and a rotating portion that holds the finder unit and is held by the rectilinear portion so as to be rotatable around the rotation axis relative to the rectilinear portion, and when the rectilinear portion moves relative to the fixed portion, a reaction force against the movement is generated by engagement between the fixed portion and the rectilinear portion, and when the rotating portion rotates relative to the rectilinear portion, a reaction force against the rotation is generated by engagement between the rectilinear portion and the rotating portion at the rotation axis. The fixed portion, the straight portion, and the rotating portion each have a pair of side wall portions on both sides in a direction parallel to the axial direction of the rotating shaft portion, the pair of side wall portions of the straight portion are arranged inside the pair of side wall portions of the fixed portion, the pair of side wall portions of the rotating portion are arranged inside the pair of side wall portions of the straight portion, at least one of the pair of side wall portions of the fixed portion is formed with a straight rail extending in the withdrawal direction and an arc rail extending in an arc shape from midway along the straight rail in a circumferential direction centered on the rotating shaft portion, the pair of side wall portions of the straight portion are provided with guide shaft portions that move linearly along the straight rail, and the rotating portion is provided with a regulating shaft that corresponds to the arc rail and moves linearly along the straight rail and also along the arc rail. It is characterized by: [Effects of the Invention]

[0008] According to the present invention, it is possible to prevent the electronic device from becoming larger in size while ensuring a large rotation angle of the finder section. [Brief explanation of the drawings]

[0009] [Figure 1]1A and 1B are a front perspective view and a rear perspective view of an electronic device. [Figure 2] 1A to 1C are rear perspective views of the camera body with the viewfinder in a retracted state, an extended state, and a rotated state. [Figure 3] FIG. 2 is an exploded perspective view of the camera body, the top cover unit, the accessory shoe, and the viewfinder unit. [Figure 4] FIG. 2 is an exploded perspective view of a viewfinder portion and an enlarged perspective view of a cam member. [Figure 5] FIG. 2 is a cross-sectional view of the lens holder and the fixed barrel, viewed from the −Z direction. [Figure 6] FIG. [Figure 7] 10A and 10B are side views of the support mechanism portion corresponding to the stored state, the pulled-out state, and the rotated state, as viewed from the +X side. [Figure 8] FIG. 2 is an exploded perspective view of the viewfinder unit. [Figure 9] 1A and 1B are views of the finder unit as seen from the +Z side and +X side, and cross-sectional views along lines AA-AA and BB-BB. [Figure 10] This is a view of the finder unit from the -Z side, and is a cross-sectional view along the lines DD-DD and CC-CC. [Figure 11] This is a view of the finder unit from the -Z side, and is a cross-sectional view taken along the lines EE-EE and FF-FF. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0011] 1(a) is a front perspective view of an electronic device to which a viewfinder unit according to an embodiment of the present invention is applied. This electronic device is configured as an image capture device 100, for example. The image capture device 100 is configured from a camera body 1 (electronic device body) and an interchangeable lens 2. In other words, the camera body 1 is an interchangeable lens digital camera to which the interchangeable lens 2 can be attached or detached.

[0012] FIG. 1(b) is a rear perspective view of the camera body 1. Hereinafter, the directions of each part will be referred to based on the X, Y, and Z coordinate axes shown in FIGS. 1(a), 1(b), etc. For convenience, the subject side will be referred to as the front, and the display unit 10 side will be referred to as the rear in a direction substantially parallel to the imaging optical axis C1 (the optical axis of the interchangeable lens 2). Therefore, in FIGS. 1(a) and 1(b), the +Y direction is upward, and the +Z direction is forward. The +X direction is to the right when viewed from the subject side.

[0013] A front grip 3 that is gripped by the user protrudes forward from the front of the camera body 1. A mount section 4 to which an interchangeable lens 2 can be attached is provided in the center of the front of the camera body 1. A group of electrical contacts 5 is provided on the mount section 4. The camera body 1 communicates with and receives power from the interchangeable lens 2 attached to the mount section 4 via the group of electrical contacts 5.

[0014] The top surface of the camera body 1 is provided with a power lever 6, a mode dial 7, a release button 8, and an accessory shoe 9. The power lever 6 is an operation unit that switches the power of the camera body 1 on and off by user operation. The mode dial 7 is an operation unit that switches between various shooting modes by user rotation operation. The release button 8 is an operation unit that starts shooting when pressed by the user. The accessory shoe 9 is located above the viewfinder unit 12 and is centered on the optical axis C1 of the interchangeable lens 2. A variety of external accessories can be attached to the accessory shoe 9.

[0015] The rear surface of camera body 1 is provided with a display unit 10, a rear operation unit 11, and a viewfinder unit 12. An image sensor 13 captures a subject image formed by an interchangeable lens 2, which is an imaging optical system. When camera body 1 is powered on and a still image or video mode is set, an image signal (through image) of the subject image captured by image sensor 13 is displayed on display unit 10. Shooting parameters indicating shooting conditions such as shutter speed and aperture value are also displayed on display unit 10.

[0016] Rear operation unit 11 includes a playback button for instructing playback of a recorded captured image, and when the user operates this playback button, the captured image is played back and displayed on display unit 10. Rear operation unit 11 also includes a video button for instructing video recording, and when the user operates this video button, video recording is started or stopped. Next to rear operation unit 11, there is provided a thumb space 14 where the user places their thumb when holding camera body 1.

[0017] The viewfinder 12 is included in the viewfinder unit 26. The viewfinder 12 is provided with a sensor window 15, an eyepiece window 16, and a diopter adjustment dial 17, which is a diopter adjustment operation unit for adjusting the diopter. The sensor window 15 is located below the eyepiece window 16 and is provided to ensure the optical path of an internal eyepiece sensor 44a (see FIG. 4). When the eyepiece sensor 44a detects that the user is looking through the eyepiece window 16, the display of the through image switches from the display unit 10 to a display panel 35 (see FIG. 4) provided inside the viewfinder 12. The diopter adjustment dial 17 is located on the side of the viewfinder 12 where the front grip 3 and the thumb space 14 are provided. The user operates the diopter adjustment dial 17 to adjust the diopter, allowing the displayed image in the viewfinder 12 to be viewed without blurring.

[0018] As will be described in detail later, the viewfinder unit 12 is movable relative to the camera body 1 among a stored state, a pulled-out state (also referred to as a pulled-out state), and a rotated state. The stored state is a state in which the viewfinder unit 12 is stored in the camera body 1. The pulled-out state is a state in which the viewfinder unit 12 is pulled out in the pull-out direction (-Z direction) from the camera body 1. The rotated state is a state in which the viewfinder unit 12 has rotated around a rotation axis A (described later in FIG. 7) relative to the camera body 1, and more specifically, a state in which the -Z side end of the viewfinder unit 12 is tilted upward. As will be described later, the axial direction of the rotation axis A is approximately perpendicular to the optical axis of the viewfinder unit 12 (optical axis F of the lens group 36a (FIG. 4) described later) and the pull-out direction.

[0019] 2(a), (b), and (c) are rear perspective views of the camera body 1 with the viewfinder unit 12 in the retracted state, the extended state, and the rotated state, respectively.

[0020] The viewfinder unit 12 can be rotated up to a rotation angle at which the eyepiece window 16 is approximately parallel to the accessory shoe 9 (FIG. 2(c)). In each of the stored, pulled-out, and rotated states of the viewfinder unit 12, the user can view the display content by looking through the eyepiece window 16. For example, when the viewfinder unit 12 is in the stored state, it can be used while maintaining the same ease of use and portability as before.

[0021] Furthermore, in conventional cameras, it is difficult to take pictures while looking through the eyepiece window with a large external accessory attached to the accessory shoe because the external accessory gets in the way. However, in this embodiment, by pulling out viewfinder 12, the distance between accessory shoe 9 and viewfinder 12 is ensured even when a large external accessory is attached to accessory shoe 9, making it easy to take pictures while looking through eyepiece window 16.

[0022] Furthermore, the viewfinder angle can be seamlessly changed from a state in which the viewfinder unit 12 is substantially parallel to the imaging optical axis C1 of the interchangeable lens 2 and the optical axis F of the viewfinder unit 12 (stored state or pulled out state) to a state in which the imaging optical axis C1 and the optical axis F are substantially perpendicular to each other (rotated state). Moreover, this viewfinder angle can be maintained. This allows for greater freedom in the user's shooting posture.

[0023] 3(a) is an exploded perspective view of the camera body 1. The unit configuration of the camera body 1 will be described.

[0024] The camera body 1 is constructed by assembling each unit to the internal structural member 20. The units include a front cover unit 21, a top cover unit 22, a side cover unit 23, a main board 24, and a rear cover unit 25. A viewfinder unit 26 is attached to the top cover unit 22 from the inside. The top cover unit 22 and the viewfinder unit 26 are fixed together to the internal structural member 20. The top cover unit 22 is an exterior part that covers part of the viewfinder unit 12 and forms part of the exterior of the camera body 1.

[0025] FIG. 3(b) is an exploded perspective view of the top cover unit 22, accessory shoe 9, and viewfinder unit 26. The accessory shoe 9 includes an engagement member 30, a signal terminal stage 31, an accessory shoe flexible circuit board 32, an accessory shoe holding member 33, and an accessory shoe spring 34. The engagement member 30 is a member for engaging and holding an external accessory, and the accessory can be attached. The signal terminal stage 31 is configured by holding a contact member 31a for the external accessory in a base member formed of a resin material. The accessory shoe flexible circuit board 32 is electrically connected to the contact member 31a and is connected to the main circuit board 24 in the camera body 1. The accessory shoe flexible circuit board 32 enables electrical connection between the camera body 1 and external accessories. As a result, various external accessories communicate with the camera body 1 and function.

[0026] The accessory shoe holding member 33 serves as a structural frame for holding the engaging member 30 and is a highly rigid and strong component of the top cover unit 22. Four screws 33a pass through the accessory shoe holding member 33, the accessory shoe flexible circuit board 32, and the top cover unit 22 and are screwed into the engaging member 30. This firmly holds the accessory shoe holding member 33 and the engaging member 30 in place. The signal terminal stage 31 is sandwiched between the engaging member 30 and the top cover unit 22. The accessory shoe spring 34 is made of a conductive metal material and has an elastic deformation portion for biasing the attached external accessory in the +Y direction. The viewfinder unit 26 is assembled from the inside of the top cover unit 22 and firmly held in place by fastening it to the accessory shoe holding member 33 with two screws 27. At this time, a fixing plate 51 (FIG. 6), which is part of the viewfinder unit 26, is fixed to the top cover unit 22 via the accessory shoe holding member 33.

[0027] 4(a) is an exploded perspective view of the viewfinder section 12. The optical unit 12a of the viewfinder section 12 has a display panel 35, a lens holder 36, a fixed barrel 37, a lens front cover 38, and a viewfinder flexible board 39. The lens holder 36 holds a lens group 36a that guides the light beam emitted from the display panel 35 to the eyepiece window 16.

[0028] The guide shaft 40 passes through the bearing 36b of the lens holder 36, and one end of the guide shaft 40 is journaled by the fixed barrel 37 and the lens front cover 38. The guide shaft 40 guides the lens holder 36 to move in the direction of the optical axis F of the lens group 36a (the direction of the optical axis of the lens unit). The spring 41 is disposed coaxially with the guide shaft 40 and is sandwiched between the lens holder 36 and the fixed barrel 37, thereby biasing the lens holder 36 in the -Z direction. The viewfinder unit 12 also has a cam member 42.

[0029] Hereinafter, the Z direction used in describing the finder unit 26 is the Z direction in the stored or pulled-out state (that is, the direction of the optical axis F).

[0030] 4(b) is an enlarged perspective view of the cam member 42. The cam member 42 has a bearing portion 42a, a cam 42b, and a gear portion 42c formed at a constant pitch in the circumferential direction. With the bearing portion 42a of the cam member 42 passing through a shaft portion (not shown) of the fixed barrel 37, the cam member 42 is sandwiched between the fixed barrel 37 and the lens front cover 38. This allows the cam member 42 to be rotatable relative to the fixed barrel 37.

[0031] 5(a) and 5(b) are a cross-sectional view and a view in the -Z direction of the lens holder 36 and the fixed barrel 37, respectively.

[0032] As shown in FIG. 4(a), the lens holder 36 is biased in the −Z direction by a spring 41, and the convex portion 36c (FIG. 5(b)) of the lens holder 36 always abuts against the cam 42b of the cam member 42. The cam member 42 is rotatable integrally with the diopter adjustment dial 17 (FIG. 4(a)), and the lens holder 36 can move forward and backward in the Z direction along the shape of the cam 42b. The leaf spring 43 elastically engages with the gear portion 42c of the cam member 42, allowing the cam member 42 to be click-stopped at each pitch of the gear portion 42c. In other words, the user can adjust the diopter of the viewfinder unit 12 by rotating the diopter adjustment dial 17 and moving the lens holder 36 to a position that matches the user's diopter.

[0033] The display panel 35 is adhesively fixed to the fixed barrel 37 with double-sided tape (not shown). The viewfinder flexible board 39 is a board for transmitting image signals and the like from the main board 24 (FIG. 3(a)). A connector that connects the display panel board 35a and the detection sensor flexible board 44 (FIG. 4(a)) is mounted on the viewfinder flexible board 39. The viewfinder flexible board 39 is positioned on the fixed barrel 37 so as to cover the back surface of the display panel 35 and is fastened with screws.

[0034] An eyepiece sensor 44a is mounted on the detection sensor flexible substrate 44, which detects when the user looks into the eyepiece window 16. When it is detected that the user has looked into the eyepiece window 16, the display is switched from the display unit 10 to the display panel 35. The detection sensor flexible substrate 44 is positioned so as to press against the back surface of the sensor window 15, which is adhesively fixed to the outer cover 45, and is fastened with screws. The lens front cover 38 has a flange portion 38a formed in the circumferential direction, and the outer cover 45 and inner cover 46 are assembled so as to sandwich this flange portion 38a and fasten them with screws. In this way, the optical unit 12a is covered by the outer cover 45 and inner cover 46, which are exterior components.

[0035] On the +Z side of inner cover 46, there are provided arcuate portion 46a, which becomes visible when viewfinder unit 12 is rotated, and opening 46b, located near the inside of arcuate portion 46a, for wiring viewfinder flexible board 39. A rubber eyepiece cover 47, which acts as a cushioning member when the user looks through the viewfinder, is fixed to outer cover 45 with screws.

[0036] As shown in FIG. 5(a), the lens group 36a is composed of multiple lenses. The outer diameter of the lens in the lens group 36a closest to the display panel 35 is D1, and the outer diameter of the lens closest to the eyepiece window 16 is D2. To enlarge the display on the display panel 35, the lens outer diameters D1 and D2 are larger than the display panel 35. The lens outer diameter D2 is larger than the lens outer diameter D1. Therefore, a space equal to half the difference (D2-D1) in the lens outer diameters is provided above the lens on the display panel 35 side (+Y side). Furthermore, the fixed barrel 37 covering the lens holder 36 is also configured to provide a substantially rectangular space 37a above the lens on the display panel 35 side. This configuration of providing such a space applies not only to the +Y side, but also to the -Y side, +X side, and -X side.

[0037] The dashed line in Figure 5(b) indicates the lens outer shape D2 on the eyepiece window side, which is the maximum outer shape of the lens group 36a. The lens holder 36 has an arc portion R2. The arc portion R2 is a pair of arc-shaped outer contours on the +Y side of the optical axis F and symmetrical with respect to the optical axis F. When viewed from the direction of the optical axis F, an extension line of the top surface 37d, an imaginary straight line 37b in the vertical direction circumscribing the side surface, and the arc portion R2 form a substantially triangular space 37c. The space 37c is the space outside the pair of arc-shaped outer contours.

[0038] 6 and 7, the support mechanism 50 that supports the viewfinder 12 will be described. The support mechanism 50 is held by the camera body 1 and supports the viewfinder 12 so that it can move between a retracted state, an extended state, and a rotated state.

[0039] Fig. 6 is an exploded perspective view of the support mechanism unit 50. Figs. 7(a), (b), and (c) are side views of the support mechanism unit 50 from the +X side corresponding to the stored state, the pulled-out state, and the rotated state, respectively. Hereinafter, unless otherwise specified, the stored state will be used as the reference when describing the direction of the support mechanism unit 50.

[0040] As shown in FIG. 6, the support mechanism 50 mainly includes a fixed plate 51 (fixed portion), a rectilinear plate 52 (rectilinear portion), a rotating plate 53 (rotating portion), and a flip member 54. The fixed plate 51 is manufactured by pressing a metal plate and is a component that forms the structural body of the support mechanism 50. The fixed plate 51 has a first surface 51a, a second surface 51b, and a third surface 51c. The first surface 51a and the second surface 51b are a pair of sidewall portions that are approximately parallel to the Z direction and approximately perpendicular to the X direction. The third surface 51c is located on the -Y side of the optical axis F (FIG. 7(a), etc.) and is approximately parallel to the X direction and the Z direction. The first surface 51a and the second surface 51b are connected by the third surface 51c.

[0041] A pair of side walls (surfaces 51a, 51b) of the fixing plate 51 are connected to each other by a third surface 51c serving as a third connecting portion at a position lower than the optical axis F in the stored state. Therefore, the fixing plate 51 forms a substantially U-shape with the surfaces 51a, 51b, and 51c.

[0042] When the top cover unit 22 and the viewfinder unit 26 are fastened together, the fixing plate 51 is fastened to the accessory shoe holding member 33 (FIG. 3(b)) with screws. Therefore, the fixing plate 51 and the accessory shoe holding member 33 form a roughly square shape (annular rectangular shape), which increases rigidity. Furthermore, the roughly square shape formed by the engaging member 30 (FIG. 3(b)) and surfaces 51a, 51b, and 51c also contributes to improving rigidity.

[0043] The first surface 51a and the second surface 51b are formed with linear rails 51d that extend linearly in the drawing direction (Z direction) of the linear plate 52. The first surface 51a and the second surface 51b are also formed with recesses 51e that extend linearly in the drawing direction, and click holes 51f are formed at the front and rear ends of the recesses 51e.

[0044] The first surface 51a is a side wall portion arranged on the diopter adjustment dial 17 (see FIG. 1) side in the X direction with respect to the optical axis F, and the second surface 51b is a side wall portion arranged on the opposite side of the diopter adjustment dial 17 in the X direction with respect to the optical axis F. In other words, the second surface 51b is a side wall portion arranged on the opposite side of the diopter adjustment dial 17 with respect to a virtual plane S1 (FIGS. 9(a) and 10(a)) that includes the optical axis F in the stored state and is substantially parallel to the up-down direction.

[0045] A cutout shape 51g is formed at the -Z side end of the first surface 51a. When the viewfinder unit 12 is in the retracted state, the cutout shape 51g is used as a space for storing the diopter adjustment dial 17. On the second surface 51b, an arc rail 51h is formed, which branches off in an arc on the -Y side midway from the straight rail 51d and is continuous with the straight rail 51d. That is, the arc rail 51h extends in an arc shape from midway along the circumferential direction centered on the rotation shaft A. The arc rail 51h is formed only on the second surface 51b of the pair of side wall portions (surfaces 51a, 51b) of the fixed plate 51.

[0046] The rectilinear plate 52 is manufactured by pressing a metal plate and is a component disposed inside the fixed plate 51. The rectilinear plate 52 is held by the fixed plate 51 so as to be movable linearly only in the pull-out direction (Z direction) relative to the fixed plate 51. The rectilinear plate 52 has a first surface 52a, a second surface 52b, and a third surface 52c. The first surface 52a and the second surface 52b are a pair of sidewall portions that are substantially parallel to the Z direction and substantially perpendicular to the X direction. The third surface 52c is substantially parallel to both the Z direction and the X direction.

[0047] The first surface 52a and the second surface 52b are located on the -Y side of the optical axis F. The first surface 52a and the second surface 52b are connected by the third surface 52c. That is, the pair of side wall portions (surfaces 52a, 52b) of the rectilinear plate 52 are connected to each other by the third surface 52c, which serves as a first connecting portion, at a position lower than the optical axis F in the stored state. Therefore, the rectilinear plate 52 has a substantially U-shape formed by the surfaces 52a, 52b, and 52c.

[0048] The first surface 52a is a side wall portion arranged on the diopter adjustment dial 17 (see Figure 1) side in the X direction with respect to the optical axis F, and the second surface 52b is a side wall portion arranged on the opposite side of the diopter adjustment dial 17 in the X direction with respect to the optical axis F.

[0049] Holes 52d are provided in the first surface 52a and the second surface 52b to serve as bearings for the rotation shaft A (see FIG. 7(a) and the like) of the rotating plate 53. An arc rail 52e is formed on the second surface 52b in correspondence with the arc rail 51h of the fixed plate 51. Leaf springs 52g protrude toward the +Z side from the first surface 52a and the second surface 52b. Protrusions 52f provided at the tips of the leaf springs 52g elastically engage with the recesses 51e and click holes 51f of the fixed plate 51.

[0050] A pair of linear guide shafts 52h, 52i (guide shaft portions) are provided on each of the first surface 52a and the second surface 52b. The linear guide shafts 52h, 52i pass through the linear rail 51d when the linear plate 52 is assembled to the fixed plate 51. A first pair of the linear guide shafts 52h, 52i is crimped to the first surface 52a of the linear plate 52, and a second pair is crimped to the second surface 52b.

[0051] The first and second pairs of linear guide shafts 52h and 52i are disposed symmetrically with respect to the optical axis F in the X direction. The linear guide shafts 52h and 52i are disposed at a fixed interval in the pull-out direction. The linear guide shafts 52h and 52i move linearly along the corresponding linear rails 51d. This allows the linear plate 52 to move linearly relative to the fixed plate 51 in the pull-out direction. The sliding between the convex portions 52f and the concave portions 51e provides a sense of operation when the linear plate 52 moves linearly. That is, when the linear plate 52 moves relative to the fixed plate 51, friction occurs due to engagement between the concave portions 51e of the fixed plate 51 and the convex portions 52f of the linear plate 52, generating a reaction force against the movement and providing a sense of operation. Furthermore, the engagement between the convex portions 52f and the click holes 51f provides a click-stop feeling at the stored position or the pulled-out position.

[0052] The rotating plate 53 is manufactured by pressing a metal plate and is disposed inside the rectilinear plate 52. The rotating plate 53 holds the finder unit 12 and is held by the rectilinear plate 52 so as to be rotatable about a rotation axis A (see FIG. 7(a) and the like) relative to the rectilinear plate 52. The rotating plate 53 has a first surface 53a, a second surface 53b, and a third surface 53c. The first surface 53a and the second surface 53b are a pair of sidewalls that are substantially parallel to the Z direction and substantially perpendicular to the X direction. The third surface 53c is substantially parallel to both the Z direction and the X direction.

[0053] The first surface 53a is a side wall portion arranged on the diopter adjustment dial 17 (see Figure 1) side in the X direction with respect to the optical axis F, and the second surface 53b is a side wall portion arranged on the opposite side of the diopter adjustment dial 17 in the X direction with respect to the optical axis F.

[0054] The first surface 53a and the second surface 53b are located on the +Y side of the optical axis F. The first surface 53a and the second surface 53b are connected by the third surface 53c. That is, the pair of side wall portions (53a, 53b) of the rotating plate 53 are connected to each other by the third surface 53c, which serves as a second connecting portion, at a position higher than the optical axis F in the stored state. Therefore, the rotating plate 53 has a generally U-shape with the surfaces 53a, 53b, and 53c. Furthermore, the surfaces 52a, 52b, and 52c of the rectilinear plate 52 and the surfaces 53a, 53b, and 53c of the rotating plate 53 cooperate to form a generally square-shaped (annular rectangle), thereby increasing rigidity.

[0055] Thus, the fixed plate 51, the rectilinear plate 52, and the rotating plate 53 each have a pair of side wall portions on both sides in a direction approximately parallel to the axial direction of the rotating shaft portion A. The pair of side wall portions (surfaces 52a, 52b) of the rectilinear plate 52 are arranged inside the pair of side wall portions (surfaces 51a, 51b) of the fixed plate 51, and the pair of side wall portions (surfaces 53a, 53b) of the rotating plate 53 are arranged inside the pair of side wall portions (surfaces 52a, 52b) of the rectilinear plate 52.

[0056] Here, first surface 53a and second surface 53b are arranged in a substantially triangular space 37c (see FIG. 5(b)) formed in viewfinder unit 12, which makes it possible to suppress an increase in size in the X direction due to the addition of rotating plate 53. Furthermore, third surface 53c of rotating plate 53 is arranged in a substantially rectangular space 37a (see FIG. 5(a)) formed in viewfinder unit 12, which makes it possible to suppress an increase in size in the Y direction due to the addition of rotating plate 53.

[0057] The first surface 53a and the second surface 53b are provided with holes 53d that serve as bearings for the rotation shaft A (FIG. 7(a) etc.) of the rotation plate 53. The holes 52d of the rectilinear plate 52 and the holes 53d of the rotation plate 53 are arranged coaxially. In addition, near each hole 53d, a curved portion 53e (FIGS. 7(b) and 7(c)) that is bent in the axial direction of the rotation shaft A is formed. Corresponding to each of the surfaces 53a and 53b, a rotation shaft pin 53f (FIG. 6) is crimped while passing through the disc spring 53g and the holes 52d and 53d. This forms the rotation shaft A that serves as the rotation center of the rotation plate 53.

[0058] Belleville spring 53g is fixed in a state where it is compressed and bent in the axial direction of rotation shaft portion A, thereby applying a rotational torque when rotating rotating plate 53. As a result, rectilinear plate 52 and rotation plate 53 are connected to be rotatable around rotation shaft portion A, and can be held at any rotational position. Therefore, when rotation plate 53 rotates relative to rectilinear plate 52, friction caused by engagement between rectilinear plate 52 and rotation plate 53 via Belleville spring 53g at rotation shaft portion A generates a reaction force against the rotation, creating a feeling of operation.

[0059] When the rotating plate 53 rotates upward or downward, the upright curved portion 53e abuts against the rotation restriction portions 52j, 52k (see Figures 7(b) and (c)) of the straight-moving plate 52, thereby restricting the upward or downward rotation angle of the rotating plate 53.

[0060] Although the disc springs 53g are arranged on both sides of the pivot pin 53f in the X direction, the disc springs 53g may be arranged on only one side. Also, although a configuration has been shown in which a constant rotational torque is generated within the rotation range of the pivot plate 53, a recess into which the disc springs 53g engage may be provided near the pivot shaft A so that a clicking sensation is generated at a certain rotation angle.

[0061] A straight-movement restricting shaft 53h is provided on the second surface 53b of the rotating plate 53 in correspondence with the arc-shaped rail 52e of the straight-movement plate 52. When the fixed plate 51, the straight-movement plate 52, and the rotating plate 53 are assembled, the straight-movement restricting shaft 53h passes through the straight-movement rail 51d of the fixed plate 51 and the arc-shaped rail 52e of the straight-movement plate 52 and is crimped to the second surface 53b of the rotating plate 53. The straight-movement restricting shaft 53h moves straight along the straight-movement rail 51d and also moves in an arc shape along the arc-shaped rail 52e. As a result, during the rotational process of the rotating plate 53, the straight-movement restricting shaft 53h engages with the arc-shaped rail 51h of the fixed plate 51, thereby restricting the straight-movement movement of the straight-movement plate 52 in the rotated state and guiding the rotational movement of the rotating plate 53.

[0062] The flip member 54 is disposed on the -Y side of the third surface 51c of the fixed plate 51. The flip member 54 is pivotally supported on the fixed plate 51 via a shaft 54a, and is configured to bias the rectilinear plate 52 toward the +Y side by a torsion spring 54b.

[0063] The rectilinear plate 52 is drawn from the stored state to the drawn-out state by the rectilinear guide shafts 52h and 52i moving along the rectilinear rail 51d of the fixed plate 51. As shown in FIGS. 7(a) and 7(b), the convex portion 52f of the leaf spring portion 52g of the rectilinear plate 52 elastically and releasably engages with the concave portion 51e of the fixed plate 51. The sliding of the convex portion 52f and the concave portion 51e provides a reaction force that provides an operational feel between the stored state and the drawn-out state. In the drawn-out state (FIG. 7(b)), the rectilinear guide shaft 52h is located at the end of the rectilinear rail 51d on the -Z side, and the rectilinear restriction shaft 53h of the rotating plate 53 is located at the branch point to the arc rail 51h of the fixed plate 51.

[0064] Next, from the pulled-out state to the rotated state, the straight-travel restriction shaft 53h moves around the rotation shaft A along the arc rail 51h of the fixed plate 51 to the end of the arc rail 51h. At that time, the friction of the disc spring 53g arranged around the rotation shaft A provides a sense of operation.

[0065] Here, the recess 51e of the fixed plate 51 needs to be positioned to avoid the arc rail 51h, and the recess 51e is provided at a position away from the rotation shaft A. In other words, the protrusion 52f of the leaf spring 52g of the rectilinear plate 52 and the rotation shaft A are positioned at a distance from each other. Therefore, if the leaf spring 52g is to provide a sense of operation between the pulled-out state and the rotated state, the rotation locus of the leaf spring 52g becomes large. This in turn makes the corresponding recess 51e larger, which leads to an increase in the size of the fixed plate 51.

[0066] However, in this embodiment, support mechanism 50 is made up of three parts: fixed plate 51, rectilinear plate 52, and rotating plate 53, and the parts that generate the operational feel are separated between the stored state and the drawn-out state and between the drawn-out state and the rotating state. This makes it possible to prevent an increase in the size of fixed plate 51, which is the base of support mechanism 50.

[0067] The shaft diameters of the linear guide shafts 52h, 52i are set to a value that takes into account manufacturing errors of the respective parts and provides a clearance that prevents interference with the linear rail 51d of the fixed plate 51, allowing for smooth linear movement. If the distance L52 (FIG. 7(a)) between the linear guide shafts 52h, 52i is too short, the linear plate 52 will wobble significantly, so the distance L52 is set to an appropriate value. Also, from the perspective of increasing the rotation angle of the viewfinder unit 12, it is preferable to position the rotation shaft A as close to the -Z side as possible to prevent the viewfinder unit 12 from interfering with the top cover unit 22.

[0068] Furthermore, since the straight-movement plate 52 and the rotating plate 53 are fixed in a state in which the disc spring 53g is bent in the axial direction of the rotating shaft portion A, the straight-movement plate 52 also tends to rotate in conjunction with the rotation of the rotating plate 53. From the viewpoint of suppressing this movement (i.e., reducing the rotational moment acting on the straight-movement plate 52), it is preferable to arrange the rotating shaft portion A and the straight-movement guide shaft 52h as close as possible to each other.

[0069] Furthermore, since the linear movement restriction shaft 53h rotates integrally with the rotating plate 53 around the rotation shaft portion A, arc rails 51h, 52e corresponding to the rotation trajectory of the linear movement restriction shaft 53h are formed on the fixed plate 51 and the linear movement plate 52. If the distance L53 between the rotation shaft portion A and the linear movement restriction shaft 53h is too long, a large space will be required to form the arc rails 51h, 52e. This is because the distance L53 corresponds to the radius of rotation. From the perspective of space saving, the distance L53 is set to an appropriate value.

[0070] Considering the above, in the stored state, the rotation shaft A, the linear guide shaft 52h (first guide shaft), the linear restriction shaft 53h, and the linear guide shaft 52i (second guide shaft) are arranged in this order along the optical axis F from the -Z side (from the eyepiece window 16 side). This makes it possible to reduce the axis spacing in the Z direction while achieving the desired function. For example, if the linear restriction shaft 53h were located on the -Z side of the linear guide shaft 52h, it would be difficult to shorten the distance between the rotation shaft A and the linear guide shaft 52h. Furthermore, if the linear restriction shaft 53h were located on the +Z side of the linear guide shaft 52i, the spacing L53 would be too long, and the space required to form the arc rails 51h and 52e would increase.

[0071] 8 is an exploded perspective view of viewfinder unit 26. Viewfinder unit 26 has viewfinder section 12, support mechanism section 50, and support mechanism section holder 55. Support mechanism section holder 55, fixing plate 51 of support mechanism section 50, and accessory shoe holding member 33 of accessory shoe 9 are fixed together with screws.

[0072] In addition to the first surface 53a, second surface 53b, and third surface 53c described above, the rotating plate 53 also has a fourth surface 53h and a fifth surface 53i (see also FIG. 6). The surfaces 53h and 53i are formed by bending downward both ends of the third surface 53c in the X direction, and are both substantially perpendicular to the Z direction. The fourth surface 53h and the fifth surface 53i are fastened to the viewfinder unit 12 with screws 50a. At the same time, the first surface 53a and the second surface 53b are fastened to the viewfinder unit 12 with screws 50b. As a result, the rotating plate 53 is fixed to the viewfinder unit 12.

[0073] Figure 9(a) is a view of the finder unit 26 from the +Z side, with the fixing plate 51 and support mechanism holder 55 not shown. Figure 9(b) is a cross-sectional view taken along line AA-AA in Figure 9(a). Line AA-AA passes through the center of screw 50a. Figure 9(c) is a side view of the finder unit 26 from the +X side, with the support mechanism holder 55 and fixing plate 51 not shown. Figure 9(d) is a cross-sectional view taken along line BB-BB in Figure 9(c). Line BB-BB passes through the center of screw 50b.

[0074] 9(b) and (c), the areas of finder unit 26 in the X direction are defined as follows: First, in the retracted state, the area of ​​finder unit 26 that forms the exterior of camera body 1 (exposed from camera body 1) is retracted appearance area 26a, and the area that is retracted into camera body 1 (not exposed from camera body 1) is retracted area 26b. Also, the area in which lens holder 36 moves is lens section area 26c, and the area on the +Z side of lens section area 26c is display panel area 26d.

[0075] 9(a), the screw 50a is disposed at a position that does not overlap with the viewfinder flexible board 39 when projected in the X direction. The screw 50a is disposed symmetrically with respect to an imaginary plane S1 that includes the optical axis F in the stored state and is substantially parallel to the up-down direction. Furthermore, as shown in FIG. 9(b), the screw 50a is disposed on the +Y side of the optical axis F and in the display panel area 26d in the Z direction.

[0076] 9(c), the rectilinear plate 52 is disposed in the storage area 26b and the display panel area 26d. Compared to disposing the rectilinear plate 52 in the lens unit area 26c, the external shape in the X direction can be made smaller, which contributes to miniaturization of the support mechanism unit 50.

[0077] Furthermore, leaf spring portion 52g of rectilinear plate 52 is disposed at a position overlapping arc portion 46a of inner cover 46 when viewed from the X direction. With this configuration, recess 51e (FIG. 6) of fixed plate 51 corresponding to leaf spring portion 52g can also be accommodated within arc portion 46a of inner cover 46. Therefore, the area on the -Y side of arc portion 46a can be used as an area for arranging internal structural member 20, thereby preventing an increase in the size of camera body 1.

[0078] Here, the lens 36a1 closest to the eyepiece window 16 is located within the lens section region 26c (FIG. 9(b)). The third surface 53c is located at a position that does not overlap with the lens 36a1 when viewed from the axial direction of the rotation shaft portion A.

[0079] As shown in FIG. 9(d), the screw 50b is located in the lens portion region 26c in the Z direction, and is located within the approximately triangular space 37c (see FIG. 5(b)).

[0080] In this way, finder unit 26 is fastened with screws on both sides of pivot shaft A in the Z direction, and is therefore firmly held to pivot plate 53 of support mechanism 50. By arranging screws 50a and 50b in the above-described positions, it is possible to prevent the support mechanism 50 from becoming too large.

[0081] Figure 10(a) is a view of the finder unit 26 as seen from the -Z side. Figures 10(b) and 10(c) are cross-sectional views taken along lines DD-DD and CC-CC in Figure 10(a), respectively.

[0082] As shown in FIG. 10(b), a linear rail 51d and a notch 51g are formed on the first surface 51a of the fixed plate 51 (see also FIG. 6). The amount of the viewfinder 12 that protrudes into the storage appearance area 26a in the stored state is designated as the viewfinder protrusion amount L26. If the viewfinder protrusion amount L26 is set too large, it will be a hindrance when the user carries the camera. In other words, if the viewfinder protrusion amount L26 is to be kept the same as that of a conventional camera, the components of the diopter adjustment dial 17 must be inserted into the storage area 26b.

[0083] In contrast, in this embodiment, by providing cutout shape 51g on the -Y side of straight rail 51d, the degree of freedom in arranging diopter adjustment dial 17 in the X direction is increased. Therefore, it is possible to arrange diopter adjustment dial 17 in an area that overlaps with first surface 51a when viewed from the Z direction. With this configuration, it is possible to prevent the diopter adjustment dial 17 from increasing the size of viewfinder unit 26 in the X direction.

[0084] 10(c), a straight rail 51d and an arc rail 51h are formed on the second surface 51b of the fixed plate 51 on the opposite side of the diopter adjustment dial 17 in the X direction (see also FIG. 6). In particular, a portion of the arc rail 51h is formed in the retracted appearance region 26a. This contributes to downsizing in the Z direction. Note that at least a portion of the arc rail 51h may be formed in the retracted appearance region 26a.

[0085] By not arranging any functional components on the side opposite the diopter adjustment dial 17 in the X direction, it is possible to form a storage section 12c for storing the arc rail 51h. In other words, the arc rail 51h is arranged only on the second surface 51b, which is on the side opposite the diopter adjustment dial 17 in the X direction. This makes it possible to form a storage section 12c for storing the arc rail 51h in the viewfinder section 12, even if the design is such that the arc rail 51h intrudes into the retracted appearance area 26a. With this configuration, it is possible to prevent the size of the viewfinder unit 26 from increasing in the X direction.

[0086] Figures 11(a) and 11(c) are views of the viewfinder unit 26 in the retracted state and the pulled-out state, respectively, as seen from the -Z side. Figure 11(b) is a cross-sectional view taken along line EE-EE in Figure 11(a). Figure 11(d) is a cross-sectional view taken along line FF-FF in Figure 11(c).

[0087] As shown in FIG. 11(b), with respect to the size of the viewfinder unit 26 in the storage area 26b in the Y direction, the size of the display panel area 26d is smaller than the size of the lens section area 26c. In the stored state, when viewed from the axial direction (X direction) of the pivot shaft A, the main board 24 is located in the display panel area 26d and does not overlap with the lens section area 26c. In the Z direction in the stored state, the overlapping area between the lens section area 26c and the storage area 26b is the area in which the lens group 36a moves. The display panel area 26d is the area in which the lens group 36a does not move. By arranging the main board 24 in the display panel area 26d, the shape of the cutout of the main board 24 required to clear the viewfinder unit 26 can be made smaller, making it easier to increase the mounting area.

[0088] As shown in FIG. 11(b), when the viewfinder 12 is in the retracted state, the flip member 54 abuts against the bottom surface of the viewfinder 12, and the viewfinder 12 is biased toward the +Y direction. Also, as shown in FIG. 11(d), when the viewfinder 12 is in the extended state, the flip member 54 abuts against the third surface 52c of the rectilinear plate 52, and the viewfinder 12 is biased toward the +Y direction. In other words, when moving from the retracted state to the extended state, the viewfinder 12 is constantly biased toward the +Y direction by the flip member 54. This prevents the rectilinear guide shaft 52h, which moves rectilinearly together with the viewfinder 12, from dropping into the arcuate rail 51h, even when the rectilinear guide shaft 52h is located at the branch point between the rectilinear rail 51d and the arcuate rail 51h. Therefore, the rectilinear guide shaft 52h can move along the rectilinear rail 51d to the end of the rail without dropping into the arcuate rail 51h.

[0089] By arranging the flip member 54 in the storage area 26b and the lens section area 26c in the Z direction, the main board 24 does not need to avoid the flip member 54, and a reduction in the mounting area is avoided. Also, by arranging the flip member 54 in a position that overlaps with the sensor window 15 on the -Y side of the eyepiece window 16 when viewed from the Z direction, it is possible to suppress an increase in size in the Y direction due to the flip member 54.

[0090] According to this embodiment, the support mechanism 50 includes a fixed plate 51, a rectilinear plate 52 that is movable relative to the fixed plate 51 in the extension direction, and a rotating plate 53 that holds the viewfinder 12 and is rotatable relative to the rectilinear plate 52. When the rectilinear plate 52 moves linearly relative to the fixed plate 51, a reaction force is generated due to friction between the convex portion 52f of the leaf spring portion 52g and the concave portion 51e of the fixed plate 51. Furthermore, when the rotating plate 53 rotates relative to the rectilinear plate 52, a reaction force is generated due to friction between the rectilinear plate 52 and the rotating plate 53 via the disc spring 53g at the rotating shaft portion A. Therefore, since friction occurs at different locations during extension and rotation, design flexibility is increased. Furthermore, since friction during rotation occurs around the rotating shaft portion A, there are fewer restrictions on the rotation angle. Therefore, it is possible to ensure a large rotation angle of the viewfinder 12 while preventing the electronic device (camera body 1) from becoming larger.

[0091] In addition, in the stored state, the rotation shaft A, the linear guide shaft 52h, the linear restriction shaft 53h, and the linear guide shaft 52i are arranged in this order along the optical axis F from the side closest to the eyepiece window 16 (Fig. 7). This reduces the axial spacing in the Z direction while still achieving the desired functions, contributing to compact size.

[0092] Furthermore, since the arc rail 51h is arranged only on the second surface 51b on the side opposite the diopter adjustment dial 17 in the X direction, this contributes to making the finder unit 26 smaller in size in the X direction.

[0093] Furthermore, the rotating plate 53 has surfaces 53a, 53b, and 53c that form a generally U-shape, and the surfaces 52a, 52b, and 52c of the rectilinear plate 52 and the surfaces 53a, 53b, and 53c of the rotating plate 53 cooperate to form a generally square shape. This increases the rigidity of the support mechanism 50.

[0094] Furthermore, the first surface 53a and the second surface 53b are arranged in a substantially triangular space 37c (see FIG. 5(b)) formed in the finder section 12, which contributes to miniaturization in the X direction.

[0095] The straight rail 51d may be provided on at least one of the first surface 51a and the second surface 51b. From the viewpoint of guide function, the arc rail 51h may be provided on both the first surface 51a and the second surface 51b.

[0096] The present invention can be applied to various electronic devices equipped with a viewfinder. For example, the present invention can be applied to imaging devices such as digital still cameras, video cameras, and television cameras, as well as various optical devices. Even when the present invention is applied to an imaging device, the imaging device may be an integrated lens type.

[0097] It should be noted that the viewfinder unit to which the present invention is applied is not limited to an electronic viewfinder.

[0098] In this embodiment, the term "approximately" does not mean to exclude completeness. For example, "approximately parallel," "approximately perpendicular," "approximately triangular," "approximately rectangular," "approximately U-shaped," and "approximately square-shaped" are intended to include complete parallelism, perpendicularity, triangle, rectangle, U-shape, and square-shape, respectively.

[0099] The present invention has been described in detail above based on its preferred embodiments, but the present invention is not limited to these specific embodiments, and various forms within the scope of the invention that do not deviate from the gist of the invention are also included in the present invention. [Explanation of symbols]

[0100] 1 camera body 12 Viewfinder 50 Support mechanism section 51 Fixed plate 52 Straight board 53 Rotating plate A Rotating shaft

Claims

1. a finder unit having a lens unit and an eyepiece window; a support mechanism section that is held by an electronic device body and movably supports the finder section in a stored state stored in the electronic device body, a pulled-out state pulled out from the electronic device body in a pull-out direction, and a rotated state in which the finder section rotates around a rotation axis section that is perpendicular to the pull-out direction in the pulled-out state, The support mechanism includes: A fixed portion; a linear portion held by the fixed portion so as to be movable in the pull-out direction relative to the fixed portion; a rotation section that holds the finder section and is held by the linear section so as to be rotatable about the rotation shaft section relative to the linear section, When the straight portion moves relative to the fixed portion, a reaction force against the movement is generated by the engagement between the fixed portion and the straight portion, When the rotating portion rotates relative to the straight portion, a reaction force against the rotation is generated by the engagement between the straight portion and the rotating portion at the rotation shaft portion, the fixed portion, the linear portion, and the rotating portion each have a pair of side wall portions on both sides in a direction parallel to the axial direction of the rotating shaft portion, the pair of side wall portions of the straight-moving portion are disposed inside the pair of side wall portions of the fixed portion, the pair of side wall portions of the rotating portion are disposed inside the pair of side wall portions of the straight portion, At least one of the pair of side wall portions of the fixed portion is formed with a straight rail extending in the pulling-out direction and an arc rail extending from a middle of the straight rail in an arc shape along a circumferential direction centered on the rotation shaft portion, a guide shaft portion that moves linearly along the linear rail is provided on the pair of side wall portions of the linear portion, a regulating shaft provided on the rotating portion, the regulating shaft corresponding to the arcuate rail and moving linearly along the linear rail and also moving along the arcuate rail;

2. A finder unit having a lens unit and an eyepiece window; a support mechanism section that is held by an electronic device body and movably supports the finder section in a stored state stored in the electronic device body, a pulled-out state pulled out from the electronic device body in a pull-out direction, and a rotated state in which the finder section rotates around a rotation axis section that is perpendicular to the pull-out direction in the pulled-out state, The support mechanism includes: A fixed portion; a linear portion held by the fixed portion so as to be movable in the pull-out direction relative to the fixed portion; a rotation section that holds the finder section and is held by the linear section so as to be rotatable about the rotation shaft section relative to the linear section, When the straight portion moves relative to the fixed portion, a reaction force against the movement is generated by the engagement between the fixed portion and the straight portion, When the rotating portion rotates relative to the straight portion, a reaction force against the rotation is generated by the engagement between the straight portion and the rotating portion at the rotation shaft portion, the fixed portion, the linear portion, and the rotating portion each have a pair of side wall portions on both sides in a direction parallel to the axial direction of the rotating shaft portion, the pair of side wall portions of the straight-moving portion are disposed inside the pair of side wall portions of the fixed portion, the pair of side wall portions of the rotating portion are disposed inside the pair of side wall portions of the straight portion, the pair of side wall portions of the straight portion are connected to each other by a first connecting portion at a position lower than the optical axis of the lens portion in the stored state, The finder unit according to claim 1, wherein the pair of side walls of the rotating portion are connected to each other by a second connecting portion at a position higher than the optical axis of the lens portion in the stored state.

3. A finder unit having a lens unit and an eyepiece window; a support mechanism section that is held by an electronic device body and movably supports the finder section in a stored state stored in the electronic device body, a pulled-out state pulled out from the electronic device body in a pull-out direction, and a rotated state in which the finder section rotates around a rotation axis section that is perpendicular to the pull-out direction in the pulled-out state, The support mechanism includes: A fixed portion; a linear portion held by the fixed portion so as to be movable in the pull-out direction relative to the fixed portion; a rotation section that holds the finder section and is held by the linear section so as to be rotatable about the rotation shaft section relative to the linear section, When the straight portion moves relative to the fixed portion, a reaction force against the movement is generated by the engagement between the fixed portion and the straight portion, When the rotating portion rotates relative to the straight portion, a reaction force against the rotation is generated by the engagement between the straight portion and the rotating portion at the rotation shaft portion, the fixed portion, the linear portion, and the rotating portion each have a pair of side wall portions on both sides in a direction parallel to the axial direction of the rotating shaft portion, the pair of side wall portions of the straight-moving portion are disposed inside the pair of side wall portions of the fixed portion, the pair of side wall portions of the rotating portion are disposed inside the pair of side wall portions of the straight portion, the finder unit has a pair of arc-shaped outer contours when viewed in the optical axis direction of the lens unit, A finder unit, wherein the pair of side walls of the rotating part are disposed in the space outside the pair of arc-shaped outer shells.

4. the guide shaft portion includes a first guide shaft portion and a second guide shaft portion, 2. The finder unit according to claim 1, wherein, in the stored state, the rotation shaft portion, the first guide shaft portion, the restriction shaft, and the second guide shaft portion are arranged in this order from the eyepiece window side of the finder portion along the optical axis direction of the lens portion.

5. a diopter adjustment operation unit for adjusting diopter; A finder unit as described in claim 1 or 4, characterized in that the arc rail is provided only on one of the pair of side wall portions of the fixed portion that corresponds to the opposite side of the diopter adjustment operation portion with respect to a virtual plane that includes the optical axis of the lens portion in the stored state and is parallel to the vertical direction.

6. the viewfinder unit has an exterior area that is exposed from the electronic device body in the stored state, 6. The finder unit according to claim 1, wherein at least a portion of the arc rail is formed in the exterior area.

7. The lens unit is composed of a plurality of lens groups, 3. The finder unit according to claim 2, wherein the second connecting portion is disposed at a position that does not overlap with the lens that is closest to the eyepiece window when viewed in the axial direction of the rotation shaft portion.

8. The finder unit according to any one of claims 1 to 7; an imaging element that captures a subject image formed by the imaging optical system; An imaging device, characterized in that an image captured by the imaging element is displayed on the finder section.

9. the viewfinder unit has a storage area that is not exposed from the electronic device body in the stored state, The storage area includes an area in the optical axis direction of the lens unit where the lens unit is movable and an area where the lens unit is not movable, the electronic device body has a main board, 9. The imaging device according to claim 8, wherein, in the stored state, when viewed from the axial direction of the pivot shaft, the main board does not overlap with the area in which the lens unit moves, and is located in the area in which the lens unit does not move.

Images