JP2009092703A - Lens device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens device where a slider made to move back and forth along a fixed guide bar fixed to a vibration-proof lens housing is prevented from being distorted and tilted even when the slider abuts on an inner wall of the vibration-proof lens housing. <P>SOLUTION: The lens device includes: the vibration-proof lens housing; the fixed guide bar fixed to the vibration-proof lens housing; the slider having one end face and the other end face on an opposite side thereto, constituted by forming an aperture for guide which pierces from the one end face to the other end face and in which the fixed guide bar is inserted, and made to move back and forth along the fixed guide bar inserted in the aperture for guide; and a vibration-proof lens attached to the slider. The lens device includes a stopper that is a projection section provided at a neighboring part of the fixed guide bar on the one end face of the slider and regulates the moving range of the slider by abutting on the inner wall of the vibration-proof lens housing with movement of the slider. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lens device, and more particularly, to a lens device including a slider that is reciprocated along a fixed guide bar fixed to a vibration-proof lens housing.

  The applicant of the present application has previously applied for a lens device including a slider or the like that is reciprocated along a fixed guide bar fixed to a vibration-proof lens housing (see Patent Document 1).

In the lens device described in Patent Document 1, a guide opening (not shown) is formed in the slider 54 ', and a fixed guide bar 60' is inserted into the guide opening. A motor coil (not shown) that constitutes an actuator is mounted on the slider 54 'in cooperation with a magnet (not shown), and the action of this actuator causes the slider 54' to move along the fixed guide bar 60 '. Reciprocated in the direction. Similarly, a guide opening (not shown) is formed in the slider 84 ′, and a fixed guide bar 90 ′ is inserted into the guide opening. A motor coil (not shown) that constitutes an actuator is mounted on the slider 84 'in cooperation with a magnet (not shown). Due to the action of this actuator, the slider 84' moves along the fixed guide bar 90 '. Reciprocated in the direction.
Japanese Patent Application No. 2007-65897

  However, in the lens device described in Patent Document 1, the positions of the sliders 54 ′ and 84 ′ that are far away from the fixed guide bars 60 ′ and 90 ′ abut against the inner wall of the vibration-proof lens housing 36 ′. There is a problem that the sliders 54 'and 84' are distorted or tilted with the corresponding contact point as a fulcrum.

  The present invention has been made in view of such circumstances, and even if a slider that is reciprocated along a fixed guide bar fixed to the vibration-proof lens housing contacts the inner wall of the vibration-proof lens housing, It is an object of the present invention to provide a lens device in which the slider is not distorted or tilted.

  The present invention has been made to solve the above problems, and the invention according to claim 1 is directed to an anti-vibration lens housing, a fixed guide bar fixed to the anti-vibration lens housing, an end surface, A guide opening having an other end surface on the opposite side and penetrating from the one end surface to the other end surface, into which the fixed guide bar is inserted, is formed, and the fixed guide bar inserted into the guide opening In a lens device comprising a slider that is reciprocated along, and an anti-vibration lens that is attached to the slider, a convex portion provided in a portion near the fixed guide bar on one end surface of the slider, A stopper is provided for defining a moving range of the slider by abutting against an inner wall of the vibration-proof lens housing as the slider moves.

  According to the first aspect of the present invention, the stopper is provided in the vicinity of the fixed guide bar on one end surface of the slider that is reciprocated along the fixed guide bar. For this reason, the moment generated when the stopper comes into contact with the inner wall of the vibration-proof lens housing is reduced as compared with the conventional case. Therefore, it is possible to prevent or reduce the slider from being distorted or tilted with the stopper as a fulcrum.

  The invention according to claim 2 has an anti-vibration lens housing, a fixed guide bar fixed to the anti-vibration lens housing, one end surface and the other end surface on the opposite side, from the one end surface to the other end surface. A guide opening into which the fixed guide bar is inserted, and a slider which is reciprocated along the fixed guide bar inserted into the guide opening, and a protection attached to the slider. And a projecting portion provided on an inner wall of the anti-vibration lens housing that is opposed to one end surface of the slider, wherein the one end surface of the slider is moved along with the movement of the slider. A stopper is provided that defines a moving range of the slider by contacting the vicinity of the fixed guide bar.

  According to the second aspect of the present invention, the stopper is provided on the inner wall of the anti-vibration lens housing facing the one end surface of the slider, and abuts against a portion near the fixed guide bar on the one end surface of the slider. For this reason, the moment generated when the stopper comes into contact with one end surface of the slider is smaller than in the prior art. Therefore, it is possible to prevent or reduce the slider from being distorted or tilted with the stopper as a fulcrum.

  According to the present invention, even when a slider that is reciprocated along a fixed guide bar fixed to the vibration-proof lens housing contacts the inner wall of the vibration-proof lens housing, the slider is distorted or tilted. It is possible to provide a lens device without the above.

  A preferred embodiment of a lens apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

  FIG. 1 shows a side sectional view of a lens apparatus 10 according to the embodiment. The lens device 10 includes a first lens group 12, a second lens group 14, a third lens group 16, and a fourth lens group from the front side of the photographing optical axis (subject side) to the rear side of the photographing optical axis (imaging side). The object light that has passed through the first to fourth lens groups 12 to 18 is composed of R, G, B of the color separation prism 20 via the color separation prism 20 constituting the color separation optical system. The image is formed on the image pickup devices 22, 24, and 26 provided at the respective emission ends. A camera body (not shown) equipped with the lens device 10 is subjected to predetermined processing (white balance, γ correction, etc.) on the imaging signals obtained from the imaging elements 22, 24, and 26 in a predetermined format. A signal processing circuit (not shown) for generating a video signal is mounted.

  The first lens group 12 is a so-called front lens, the second lens group 14 is a variator lens that changes the focal length, and the third lens group 16 is an anti-vibration lens that is driven in a direction that cancels vibration caused by camera shake or the like. The fourth lens group 18 is a focus lens that adjusts the focal point.

  These first to fourth lens groups 12 to 18 are held in the lens barrel body 11. In addition, a pair of guide bars 28 (one not shown) parallel to the optical axis is inserted into the lens barrel body 11, and the holding frame 32 for the second lens group 14 is inserted into the pair of guide bars 28. The holding frame 34 of the fourth lens group 18 is slidably supported, and the housing 36 of the third lens group 16 is fixed to a pair of guide bars 28. The housing 36 may be directly fixed to the lens barrel body 11.

  The second lens group 14 is provided with a nut (not shown) that constitutes a screw feed device, and a feed screw (not shown) that also constitutes a screw feed device is screwed and connected to the nut. The feed screw is disposed in parallel with the optical axis, and its end is connected to the output shaft of a zoom stepping motor (not shown). When a zoom signal is output from the camera body side to a zoom driver circuit (not shown) of the zoom stepping motor, the zoom stepping motor rotationally drives the feed screw in a direction corresponding to the signal. As a result, the second lens group 14 is moved back and forth in the optical axis direction along the pair of guide bars 28 and adjusted to a desired focal length.

  Similarly, the fourth lens group 18 is also provided with a nut (not shown) constituting a screw feed device, and a feed screw (not shown) constituting the screw feed device is screwed and connected to the nut. The feed screw is disposed in parallel with the optical axis, and its end is connected to the output shaft of a focusing stepping motor (not shown). When a focus signal is output from the camera body side to a focus driver circuit (not shown) of the focus stepping motor, the focus stepping motor rotationally drives the feed screw in a direction corresponding to the signal. As a result, the fourth lens group 18 is moved back and forth in the optical axis direction along the pair of guide bars 28 to be focused.

  Next, the structure of the vibration isolation mechanism will be described.

  2 is a perspective view of the housing 36 equipped with the vibration-proof lens 16 as viewed from the rear, and FIG. 3 is a perspective view of the housing 36 shown in FIG. 4 is a view of the housing 36 of FIG. 3 as viewed in the direction of the optical axis L, and FIG. 5 shows a state in which the lens holding frame 50 is removed from FIG. FIG. 6 is a perspective view showing only the main part of the vibration isolation mechanism.

  A third lens group (referred to herein as an anti-vibration lens for convenience) 16 shown in these drawings is held by a lens holding frame 50, and this lens holding frame 50 is different in a plane perpendicular to the photographing optical axis L. It is supported movably in the direction. Here, the moving direction of the anti-vibration lens 16 is defined as an X direction (horizontal direction in FIGS. 2 to 5) and a Y direction (vertical direction in FIGS. 2 to 5). Further, a mechanism for moving the image stabilizing lens 16 in the X direction is referred to as an X movement mechanism, and a mechanism for moving in the Y direction is referred to as a Y movement mechanism.

  First, the X movement mechanism will be described.

  As shown in FIG. 5, a fixed guide bar 60 is attached to the housing 36. The fixed guide bar 60 is disposed in the X direction, and both ends thereof are fixed to the housing 36. An upper side portion of the slider 54 formed in an L shape is engaged with the fixed guide bar 60. A guide hole (not shown) is formed in the upper side of the slider 54 in the X direction. By inserting the fixed guide bar 60 into the guide hole, the slider 54 is supported to be slidable in the X direction.

  A movement guide bar 52 is attached to the left side of the slider 54. The movement guide bar 52 is disposed in the Y direction, and is fixed to the slider 54 by being fitted into the fitting portions 55 and 55 of the slider 54. As shown in FIG. 4, the guide portions 56 and 56 of the lens holding frame 50 are engaged with the moving guide bar 52. The guide portions 56 and 56 of the lens holding frame 50 are arranged outside the fitting portions 55 and 55 of the slider 54 (that is, the upper side and the lower side in FIG. 4). (Not shown) is formed penetrating in the Y direction. By inserting the cylindrical movement guide bar 52 into the square hole, the lens holding frame 50 is engaged with the slider 54. Accordingly, the lens holding frame 50 can be slid in the Y direction along the movement guide bar 52 and is configured to move integrally with the slider 54 in the X direction. As shown in FIG. 2, the lower end 52A of the moving guide bar 52 is engaged with a long hole 36A in the X direction formed on the lower surface of the housing 36, whereby the slider 54 is moved in the optical axis L direction. Shaking is prevented.

  As shown in FIG. 2, a planar motor coil (trade name “Fine Pattern Coil” (registered trademark)) 62 is fixed to the upper side of the slider 54 described above, and a flexible printed circuit board is mounted on the lower surface of the motor coil 62. The output ends of 64 (hereinafter referred to as flex) are bonded and fixed. The motor coil 62 is disposed in the X direction around the outer side of the vibration-proof lens 16, and a position sensor 66 such as a Hall element is positioned and fixed to the flex 64.

  The flex 64 is drawn out from the motor coil 62 in the X direction, and is drawn out of the housing 36 through the side opening 68 of the housing 36. The flex 64 drawn out is bent in a U shape and bonded to the upper surface of the housing 36, and then folded and overlapped. Further, the lens mirror 11 is mounted from a predetermined position on the lens barrel body 11 (see FIG. 1). It is pulled out of the trunk body 11. The extracted flexible cable 64 is connected to a unit that performs power supply and operation control of the image stabilizing lens 16. As shown in FIG. 3, the side surface opening 68 of the housing 36 communicates with the end surface of the housing 36 through a slit 70, and by passing the flex 64 through the slit 70, the flex 64 is connected to the side surface opening 68. Arranged inside.

  A magnet 72 is disposed outside the motor coil 62 so as to face the motor coil 62. The magnet 72 is formed in a rectangular plate shape by arranging two magnet pieces 72A and 72B in the X direction, so that the S pole and the N pole are aligned in the X direction, and also on the upper and lower surfaces thereof. The S pole and the N pole are configured to be different. The position sensor 66 described above is disposed to face the central portion of the magnet 72 in the X direction (that is, the boundary portion between the magnet pieces 72A and 72B), detects a change in the magnetic field, and sends the detected signal to the flex 64. Output to the unit.

  A metal plate (not shown) serving as a yoke is provided outside the magnet 72. The metal plate is attracted to the magnet 72 by the magnetic force of the magnet 72. Further, the metal plate is formed in a rectangular shape larger than the magnet 72, and is attached in a state where the four edges protrude from the magnet 72. On the outer surface of the housing 36, a concave portion having a size of a metal plate is formed, and an opening 74 having a size of a magnet 72 is formed through the inside thereof. The metal plate is stored in the concave portion of the housing 36. At the same time, the magnet 72 is accommodated in the opening 74.

  Inside the motor coil 62, a metal plate 76 serving as a yoke is disposed in the X direction so as to face the motor coil 62. One end of the metal plate 76 is inserted into the slit 70, and the other end is inserted into a groove 78 formed in the housing 36, so that the metal plate 76 is fixed to the housing 36.

  In the X moving mechanism configured as described above, since the motor coil 62 is disposed in the magnetic field formed by the magnet 72 and the two metal plates (one not shown) 76, the motor coil 62 is energized. Thus, the motor coil 62 and the slider 54 that supports the motor coil 62 receive a force in the X direction. Accordingly, the slider 54 and the lens holding frame 50 are moved in the X direction, and accordingly, the image stabilizing lens 16 is moved in the X direction. The above is the structure of the X movement mechanism.

  Next, the Y moving mechanism will be described.

  As shown in FIG. 5, a fixed guide bar 90 is attached to the housing 36. The fixed guide bar 90 is disposed in the Y direction, and both ends thereof are fixed to the housing 36. An upper side portion of the slider 84 formed in an L shape is engaged with the fixed guide bar 90. A guide hole (not shown) is formed in the Y direction on the upper side of the slider 84, and the fixed guide bar 90 is inserted into the guide hole, so that the slider 84 is slidably supported in the Y direction.

  A movement guide bar 82 is attached to the lower side of the slider 84. The movement guide bar 82 is disposed in the X direction, and is fixed to the slider 84 by being fitted into the fitting portions 85, 85 of the slider 84. As shown in FIG. 4, guide portions 86 and 87 of the lens holding frame 50 are engaged with the moving guide bar 82. The guide portion 86 of the lens holding frame 50 is disposed between the fitting portions 85 and 85 of the slider 84, and a cross section perpendicular to the X axis is formed in a concave shape opened on one side of the optical axis L. Yes. On the other hand, the guide portion 87 is disposed outside the fitting portions 85 and 85, and a cross section orthogonal to the X axis is formed in a concave shape opened to the outside (the lower side in the figure). The lens holding frame 50 is engaged with the slider 84 by inserting the moving guide bar 82 into these guide portions 86 and 87. Thereby, the lens holding frame 50 can be slid in the X direction along the movement guide bar 82, and is configured to move integrally with the slider 84 in the Y direction.

  As shown in FIG. 6, the slider 84 is provided with a guide portion 83. The guide part 83 is provided in the tip part (left end part) of the lower side part of the slider 84, and is formed in a concave shape with the tip side (left side) opened. A guide bar 88 is inserted into the guide portion 83 and is slidably engaged. The guide bar 88 is disposed in the Y direction, and its end is fixed to the housing 36 (see FIG. 5). Thus, the guide bar 88 can prevent the slider 84 from swinging (or falling) in the optical axis L direction.

  As shown in FIG. 2, a planar motor coil (trade name “Fine Pattern Coil” (registered trademark)) 92 is fixed to the right side portion of the slider 84, and a flexible printed circuit board is attached to the left surface of the motor coil 92. The output end of 94 (hereinafter referred to as “flex”) is bonded and fixed. The motor coil 92 is disposed in the Y direction around the outer side of the vibration-proof lens 16, and a position sensor 96 such as a Hall element is positioned and fixed to the flex 94.

  The flex 94 is drawn out from the motor coil 92 in the Y direction, and is drawn out of the housing 36 through the side opening 98 of the housing 36. The flex 94 drawn out is bent in a U shape and bonded to the outer surface of the casing, and then folded and overlapped. Further, the flex 94 is stacked on the flex 64 on the upper surface of the casing 36, and then the lens barrel. The main body 11 (see FIG. 1) is pulled out of the lens barrel main body 11 from a predetermined position. The extracted flexible cable 94 is connected to a unit that performs power supply and operation control of the image stabilizing lens 16. The side opening 98 of the housing 36 is communicated with the end surface of the housing 36 through the slit 100, and the flex 94 is disposed inside the side opening 98 by passing the flexible wire 94 through the slit 100.

  A magnet 102 is disposed outside the motor coil 92 so as to face the motor coil 92. The magnet 102 is formed in a rectangular plate shape by arranging two magnet pieces 102A and 102B in the Y direction, so that the S pole and the N pole are aligned in the Y direction, and also on the right side and the left side thereof. The S pole and the N pole are configured to be different. The position sensor 96 described above is disposed to face the central portion of the magnet 102 in the Y direction (that is, the boundary between the magnet pieces 102A and 102B), detects a change in the magnetic field, and sends the detected signal to the flex 94. Output to the unit.

  A metal plate (not shown) serving as a yoke is provided outside the magnet 102. The metal plate is attracted to the magnet 102 by the magnetic force of the magnet 102. Further, the metal plate is formed in a rectangular shape larger than the magnet 102, and is attached in a state where the four edges protrude from the magnet 102. A recess having the size of a metal plate is formed on the outer surface of the housing 36, and an opening 104 having a size of the magnet 102 is formed through the inside thereof. A metal plate is formed in the recess of the housing 36. While being housed, the magnet 102 is housed in the opening 104.

  Inside the motor coil 92, a metal plate 106 serving as a yoke is disposed in the Y direction so as to face the motor coil 92. One end of the metal plate 106 is inserted into the slit 100, and the other end is inserted into a groove 108 formed in the housing 36, so that the metal plate 106 is fixed to the housing 36.

  In the Y moving mechanism configured as described above, since the motor coil 92 is disposed in the magnetic field formed by the magnet 102 and the two metal plates (one is not shown) 106, the motor coil 92 is energized. Thus, the motor coil 92 and the slider 84 that supports the motor coil 92 receive a force in the Y direction. Accordingly, the slider 84 and the lens holding frame 50 are moved in the Y direction, and accordingly, the image stabilizing lens 16 is moved in the Y direction. The above is the structure of the vibration isolation mechanism.

  Next, a structure for defining the movement ranges of the sliders 54 and 84 in the X and Y directions will be described with reference to the drawings.

  As shown in FIG. 4, a guide opening (not shown) is formed in the slider 54, and a fixed guide bar 60 is inserted into the guide opening. A motor coil 62 that constitutes an actuator is mounted on the slider 54 in cooperation with the magnet 72, and the slider 54 is reciprocated in the X direction along the fixed guide bar 60 by the action of the actuator.

  In the vicinity of the fixed guide bar 60 on both end faces 54a and 54b along the fixed guide bar 60 of the slider 54, stoppers 40 and 41 which are convex portions are provided. The stoppers 40 and 41 come into contact with the inner wall of the vibration-proof lens housing 36 as the slider 54 reciprocates in the X direction. Thereby, the movement of the slider 54 is prevented and the movement range is defined.

  As described above, since the stoppers 40 and 41 are provided in the vicinity of the fixed guide bar 60 on each of the both end faces 54a and 54b along the fixed guide bar 60 of the slider 54, each stopper 40 and 41 corresponds to the vibration-proof lens housing 36. The moment generated when it comes into contact with the inner wall is smaller than in the conventional case. Therefore, it is possible to prevent or reduce the slider 54 from being distorted or tilted with the stoppers 40 and 41 as fulcrums.

  Grease is applied between the stoppers 40 and 41 and the inner wall of the vibration-proof lens housing 36 for lubrication. However, as shown in FIGS. 7 and 8, the stoppers 40 and 41 have contact surfaces 40a and 41a that contact the inner wall of the vibration-proof lens housing 36. The contact surfaces 40a and 41a are respectively The area of the slider 54 is set to be smaller than the areas of the one end face 54a and the other end face 54b. For example, as shown in FIGS. 7 and 8, the stoppers 40 and 41 are formed in a tapered quadrangular pyramid shape toward the tip, and the contact surfaces 40 a and 41 a are the tips of the tapered stoppers 40 and 41. Is provided. For this reason, the stoppers 40 and 41 are easily separated from the inner wall of the vibration-proof lens housing 36 because the contact surfaces 40a and 41a having a relatively small area come into contact with the inner wall through the grease. . The stoppers 40 and 41 are not limited to a quadrangular pyramid shape, and may be a cone shape, a triangular pyramid shape, or a cylindrical shape, a triangular prism shape, or the like.

  Similarly, as shown in FIG. 4, a guide opening (not shown) is formed in the slider 84, and a fixed guide bar 90 is inserted into the guide opening. A motor coil 92 that constitutes an actuator in cooperation with the magnet 102 is attached to the slider 84, and the slider 84 is reciprocated in the Y direction along the fixed guide bar 90 by the action of the actuator.

  In the vicinity of the fixed guide bar 90 on both end surfaces 84a and 84b along the fixed guide bar 90 of the slider 84, stoppers 42 and 43 which are convex portions are provided. The stoppers 42 and 43 come into contact with the inner wall of the vibration-proof lens housing 36 as the slider 84 reciprocates in the Y direction. Thereby, the movement of the slider 84 is prevented and the movement range is defined.

  As described above, the stoppers 42 and 43 are provided in the vicinity of the fixed guide bar 90 on each of the both end faces 84a and 84b along the fixed guide bar 90 of the slider 84. The moment generated when it comes into contact with the inner wall is smaller than in the conventional case. Accordingly, it is possible to prevent or reduce the slider 84 from being distorted or inclined with the stoppers 42 and 43 as fulcrums.

  Grease is applied between the stoppers 42 and 43 and the inner wall of the vibration-proof lens housing 36 for lubrication. However, as shown in FIGS. 9 and 10, the stoppers 42 and 43 have contact surfaces 42 a and 43 a that contact the inner wall of the vibration-proof lens housing 36. The contact surfaces 42 a and 43 a are respectively The area is set smaller than the areas of the one end face 84a and the other end face 84b of the slider 84. For example, as shown in FIGS. 9 and 10, the stoppers 42 and 43 are formed in a tapered quadrangular pyramid shape toward the tip, and the contact surfaces 42 a and 43 a are the tips of the tapered stoppers 42 and 43. Is provided. For this reason, the stoppers 42 and 43 are easily separated from the inner wall of the vibration-proof lens housing 36 because the contact surfaces 42a and 43a having a relatively small area come into contact with the inner wall through the grease. . The stoppers 42 and 43 are not limited to a quadrangular pyramid shape, and may be a cone or a triangular pyramid shape, or may be a cylinder or a triangular prism shape.

  As described above, according to the lens device 10 of the present embodiment, the stoppers 40 and 41 (42 and 43) are reciprocated along the fixed guide bar 60 (90) and the one end surface 54a of the slider 54 (84). (84a) and the other end face 54b (84b) are provided in the vicinity of the fixed guide bar 60 (90). For this reason, the moment generated when the stoppers 40 and 41 (42 and 43) are in contact with the inner wall of the vibration-proof lens housing 36 is smaller than in the prior art. Accordingly, it is possible to prevent or reduce the slider 54 (84) from being distorted or tilted with the stoppers 40, 41 (42, 43) as fulcrums.

  Next, a modified example will be described.

  In the above embodiment, the stoppers 40 and 41 (42 and 43) are described as being provided on the one end surface 54a (84a) and the other end surface 54b (84b) of the slider 54 (84). It is not limited to this. For example, the stoppers 40 and 41 (42, 43) are not the slider 54 (84), but the one end surface 54a and the other end surface 54b (one end surface 84a, the other end surface 84b) of the slider 54 (84) face each other. The stoppers 40, 41 (42, 43) may be provided on the inner wall of the body 36 and abutted against the one end surface 54a and the other end surface 54b (one end surface 84a, the other end surface 84b) of the slider 54 (84). This also reduces the moment generated when the stoppers 40, 41 (42, 43) are in contact with the one end surface 54a (84a) and the other end surface 54b (84b) of the slider 54 (84) compared to the conventional case. Become. Therefore, also according to this modification, it is possible to prevent or reduce the slider 54 (84) from being distorted or tilted with the stoppers 40, 41 (42, 43) as fulcrums.

  The above embodiment is merely an example in all respects. The present invention is not construed as being limited to these descriptions. The present invention can be implemented in various other forms without departing from the spirit or main features thereof.

It is a sectional side view which shows the lens apparatus which concerns on embodiment. It is the perspective view which looked at the housing | casing equipped with the vibration proof lens from back. It is the perspective view which removed the actuator from the housing | casing of FIG. It is the figure which looked at the anti-vibration mechanism of FIG. 3 in the optical axis direction. FIG. 5 is a diagram in which a lens holding frame is removed from the vibration isolation mechanism of FIG. 4. It is a perspective view which shows the main components of the vibration proof mechanism except a housing | casing. It is a perspective view of a stopper. It is a perspective view of a stopper. It is a perspective view of a stopper. It is a perspective view of a stopper. It is a figure for demonstrating a prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Lens apparatus, 11 ... Lens barrel main body, 12 ... 1st lens group, 14 ... 2nd lens group, 16 ... 3rd lens group, 18 ... 4th lens group, 40-43 ... Stopper, 50 ... Lens holding Frame 52 ... Movement guide bar (corresponding to movement axis) 54 ... Slider 56 ... Guide part 60 ... Fixed guide bar (corresponding to fixed axis) 64 ... Flexible substrate 82 ... Movement guide bar (corresponding to movement axis) , 83... Guide portion, 84. Slider, 86 and 87. Guide portion, 88... Guide bar, 90... Fixed guide bar (corresponding to a fixed shaft), 94.

Claims (2)

An anti-vibration lens housing;
A fixed guide bar fixed to the vibration-proof lens housing;
An opening that has one end face and the other end face opposite to the one end face and that is penetrated from the one end face to the other end face and into which the fixed guide bar is inserted is formed, and the fixing is inserted into the guide opening. A slider that can be reciprocated along the guide bar;
An anti-vibration lens attached to the slider;
In a lens apparatus comprising:
A convex portion provided in the vicinity of the fixed guide bar on one end surface of the slider, and defines the moving range of the slider by contacting the inner wall of the vibration-proof lens housing as the slider moves. A lens device comprising: a stopper that performs the operation. An anti-vibration lens housing;
A fixed guide bar fixed to the vibration-proof lens housing;
An opening that has one end face and the other end face opposite to the one end face and that is penetrated from the one end face to the other end face and into which the fixed guide bar is inserted is formed, and the fixing is inserted into the guide opening. A slider that can be reciprocated along the guide bar;
An anti-vibration lens attached to the slider;
In a lens apparatus comprising:
A projecting portion provided on the inner wall of the vibration-proof lens housing that is opposed to one end surface of the slider, and comes into contact with a portion near the fixed guide bar on one end surface of the slider as the slider moves. A lens apparatus comprising a stopper for defining a moving range of the slider.

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