JP5786240B2 - Electric lens device - Google Patents

Description

  The present invention relates to an electric lens device suitable for use in a projector having a lens moving mechanism for moving a lens by a drive motor unit.

  In general, a projector is equipped with a lens device for projection. In particular, in an electric lens device that performs focusing and zooming by a remote control (remote control) or the like, an adjustment ring that is rotatably provided on the outer periphery of the lens barrel. The rack is provided with a lens moving mechanism in which a pinion rotated by a drive motor unit is engaged.

  Conventionally, as such a lens moving mechanism, a zoom lens barrel disclosed in Patent Document 1 and a lens driving device disclosed in Patent Document 2 are known. A zoom lens barrel disclosed in Patent Document 1 includes a cam barrel that cams in the optical axis direction, and a plurality of lenses that hold the lens and move relative to each other in the optical axis direction by the cam barrel and perform a zooming operation. A moving frame, a focusing moving frame that is connected to the first lens moving frame located at the tip of the plurality of lens moving frames so as to be movable in the optical axis direction by rotation and that performs a focusing operation while holding the lens; A zoom lens barrel comprising: a fixed cylinder that rotatably supports a cam cylinder and guides a plurality of lens moving frames in the optical axis direction; and a first motor that exerts a rotational driving force on the cam cylinder, The focus moving frame and the fixed cylinder include an interlocking mechanism that moves the focus moving frame in the optical axis direction in conjunction with a rotational force at a predetermined position in the optical axis direction, and a second motor that exerts a rotational driving force on the interlocking mechanism. And. Further, the lens driving device disclosed in Patent Document 2 is a lens driving device for driving a lens barrel in which an optical system is housed and an operation ring for driving the optical system is formed on an outer peripheral portion. A motor mounted on the outer periphery of the lens barrel and connected to the operation ring; a first flat portion fixed to the outer peripheral surface of the lens barrel; and a first flat portion extending along the outer peripheral surface of the lens barrel And a motor holding plate including a motor mounting portion continuous via a bent portion, and the motor is configured to be mounted on a surface of the motor mounting portion opposite to the lens barrel.

JP 2004-240030 A JP 2009-003100 A

  However, the conventional electric lens device having the lens moving mechanism described above has the following problems.

  First, it is necessary to attach the drive motor unit directly to the outer periphery of the lens barrel, and to lead and connect the lead wiring derived from the drive motor unit attached to the outer periphery of the lens barrel. For this reason, the mounting workability and the assembling efficiency are lowered, and secondary problems such as unnecessarily damaging the lens barrel are likely to occur. In particular, such a problem becomes larger as the lens barrel becomes larger, and therefore cannot be ignored in a large lens barrel.

  Secondly, since the adjustment ring provided on the outer peripheral portion of the lens barrel is rotated by the drive motor portion, the drive motor portion needs to be attached to the outer peripheral portion of the lens barrel. Therefore, it is necessary to prepare a separate metal fitting for mounting, and usually has two lens moving mechanisms for focusing and zooming, so a large metal fitting for mounting at least two metal fittings or two motors. Is required, resulting in an increase in the number of parts, an increase in the number of mounting steps, and an associated increase in cost.

  An object of the present invention is to provide an electric lens device that solves the problems in the background art.

  In order to solve the above-described problems, the present invention provides a drive motor portion 5f with respect to the racks 4f and 4z of the adjustment rings 3f and 3z that are rotatably provided on the outer peripheral portion 2s of the lens barrel 2 and move the lens. , 5z meshed with the pinion 6f, 6z, the focus lens moving mechanism Mf for moving the focus lens, and the zoom lens moving mechanism Mz for moving the zoom lens are configured. 2 is formed in a cylindrical shape that can be mounted on the outer peripheral portion 2s, and at least the motor mounting portions 8f and 8z for attaching the driving motor portions 5f and 5z to the outer surface 7e and the lens side mounting portion 16 are integrally formed. And a flange that is integrally formed at the rear end of the mounting cylinder 7 in a ring shape facing the center direction and that can be attached to the rear end surface of the lens barrel 2 By having the portion 26, when the mounting portion 7 is attached to the outer peripheral portion of the lens barrel 2 or the fixing portion 9 that is fixed to the lens barrel 2 when being attached to the outer peripheral portion 2 s of the lens barrel 2. A fixing portion 9 for fixing the front outer peripheral surface of the mounting cylinder portion 7 to the lens barrel 2 is provided.

  In this case, according to a preferred aspect of the invention, the motor mounting portion 8f of the focus lens moving mechanism Mf and the motor mounting portion 8z of the zoom lens moving mechanism Mz are arranged close to each other and are the same from the outer surface 7e of the mounting cylinder portion 7. It can be formed protruding in the direction. On the other hand, the outer surface 7e of the mounting cylinder portion 7 supports the rear portions of the drive motor portions 5f and 5z whose front portions are fixed to support the rear portions of the drive motor portions 5f and 5z. Can be integrally formed. Further, on the outer surface 7e of the mounting cylinder portion 7, a protruding terminal base portion 14 for attaching the connection terminals 13 for connecting the lead wires 12f, 12z of the drive motor portions 5f, 5z can be integrally formed. In addition, on the outer surface 7e of the mounting cylinder portion 7, a protruding wiring restricting portion 15 that restricts the routing positions of the lead wires 12f and 12z of the drive motor portions 5f and 5z can be integrally formed.

  According to the electric lens device 1 according to the present invention having such a configuration, the following remarkable effects can be obtained.

  (1) Since the drive motor portions 5f and 5z are attached to the mounting cylinder portion 7 in advance, the mounting cylinder portion 7 can be attached to the outer peripheral portion 2s of the lens barrel 2, so that the outer peripheral portion 2s of the lens barrel 2 is attached. On the other hand, it is not necessary to directly assemble the drive motor portions 5f and 5z. Therefore, it is possible to improve the assembling workability and the assembling efficiency, and avoid secondary problems such as damaging the lens barrel 2 unnecessarily.

  (2) A separate metal fitting for attaching the drive motor portions 5f and 5z to the outer peripheral portion 2s of the lens barrel 2 is not necessary, and an attachment process for attaching the metal fitting to the lens barrel 2 by screwing or the like is unnecessary. Become. Therefore, it is possible to reduce the number of parts and the number of assembling steps, and to reduce the costs associated therewith.

  (3) Since the mounting cylinder portion 7 is formed in a cylindrical shape that can be attached to the outer peripheral portion 2 s of the lens barrel 2, the mounting cylinder portion 7 is also used as an external cover that covers the outer peripheral portion 2 s of the lens barrel 2. Thus, the lens barrel 2 can be protected externally.

  (4) Since the focus lens moving mechanism Mf for moving the focus lens and the zoom lens moving mechanism Mz for moving the zoom lens are included as the lens moving mechanism (Mf, Mz), two movements of one mounting cylinder portion 7 are performed. The mechanisms Mf and Mz can be shared, and the usability of the mounting cylinder portion 7 can be further increased.

  (5) Since the lens-side mount portion 16 is integrally formed on the mounting cylinder portion 7, the shape (configuration) on the lens barrel 2 side can be further simplified, and the manufacturability (moldability) of the lens barrel 2 is further improved. In addition to improving the accuracy, the lens barrel 2 can be improved in accuracy.

  (6) According to a preferred embodiment, the motor mounting portion 8f of the focus lens moving mechanism Mf and the motor mounting portion 8z of the zoom lens moving mechanism Mz are arranged close to each other and in the same direction from the outer surface 7e of the mounting cylinder portion 7. If the protrusion is formed, it can be applied to the two moving mechanisms Mf and Mz, and the mold opening direction can be simplified even when the mounting cylinder portion 7 is integrally formed by a mold. ).

  (7) According to a preferred embodiment, the outer surface 7e of the mounting cylinder portion 7 supports the rear portions of the drive motor portions 5f and 5z whose front portions are fixed, and holds the drive motor portions 5f and 5z. If the restricting portions 11f and 11z are integrally formed, a problem that the pinions 6f and 6z are lifted and disengaged from the racks 4f and 4z can be avoided, so that the engagement of the pinions 6f and 6z and the racks 4f and 4z can be reliably maintained.

  (8) According to a preferred embodiment, the protruding terminal block 14 for attaching the connection terminals 13... For connecting the lead wires 12 f, 12 z of the drive motor portions 5 f, 5 z to the outer surface 7 e of the mounting cylinder portion 7 is integrated. If formed, it is not necessary to attach a separate terminal block 14 to the outer surface 7e of the mounting cylinder 7 with a fixing screw or the like, which can contribute to further reduction in the number of parts, assembly man-hours, and cost reduction. .

  (9) According to a preferred embodiment, if the projecting wiring restricting portion 15 for restricting the routing positions of the lead wires 12f, 12z of the drive motor portions 5f, 5z is integrally formed on the outer surface 7e of the mounting cylinder portion 7, This can contribute to prevention of erroneous connection to the connection terminals 13 of the lead wires 12f, 12z in the drive motor portions 5f, 5z.

A perspective view of a lens barrel and a mounting cylinder part provided in an electric lens device according to a preferred embodiment of the present invention, A cross-sectional rear view showing a motor mounting portion in the mounting cylinder portion, Sectional side view showing the terminal block and connection terminal in the mounting cylinder, A partial cross-sectional side view showing a state in which the mounting cylinder and the mounting cylinder are mounted on a lens barrel; The top view which shows the state which attached the drive motor part to the cylinder part for attachment, and was attached to the lens barrel, The top view which shows the state which attached the drive motor part to the motor attachment part in the cylinder part for the attachment, The rear view which shows the state which attached the drive motor part to the motor attachment part in the cylinder part for the attachment, A partial cross-sectional side view showing a modified example of the mounting cylinder part and attached to the lens barrel,

  Next, preferred embodiments according to the present invention will be given and described in detail with reference to the drawings.

  First, main components of the electric lens device 1 according to the present embodiment will be described with reference to FIGS.

  The illustration shows an electric lens device 1 for a projector. The electric lens device 1 includes a lens barrel 2 shown in FIG. Although not shown, the inside of the lens barrel 2 is configured as a known lens barrel containing at least a plurality of lenses (lens group) including a focus lens and a zoom lens. On the other hand, the outer peripheral portion 2s of the lens barrel 2 is provided with a focus adjustment ring 3f provided rotatably and having a circumferential rack 4f formed on the outer peripheral surface. A zoom adjustment ring 3z having a directional rack 4z is provided. Accordingly, when the focus adjustment ring 3f is rotated by a drive motor unit 5f described later, the focus lens moving mechanism Mf that can move the focus lens in the front-rear direction and perform focusing adjustment is configured. When the zoom adjustment ring 3z is rotated by a drive motor unit 5z described later, an internal zoom lens moves in the front-rear direction, and a zoom lens moving mechanism Mz that can perform zooming adjustment is configured.

  In addition, the electric lens device 1 includes a mounting cylinder portion 7 formed in a cylindrical shape that can be attached to the outer peripheral portion 2 s of the lens barrel 2 from the rear. The mounting cylinder portion 7 is integrally formed of synthetic resin, and a motor mounting portion 8f in the focus lens moving mechanism Mf is integrally formed in front of the outer surface (outer peripheral surface) 7e, and a motor in the zoom lens moving mechanism Mz. The attachment portion 8z is integrally formed.

  In this case, the motor attachment portion 8z stands upright from the outer surface 7e at the front end of the attachment cylinder portion 7, and supports the front portion (front portion) of the drive motor portion 5z and the front of the drive motor portion 5f. A support wall portion 8fc for supporting the portion (front surface portion). At this time, the support wall portion 8fc is disposed at a position offset to the front side by a predetermined interval with respect to the support wall portion 8zc, and the predetermined interval is set to an interval between the zoom adjustment ring 3z and the focus adjustment ring 3f. The support wall portion 8fc and the support wall portion 8zc are adjacent to each other in the circumferential direction. The support wall portion 8fc has two screw hole portions 21f and 21f located on the left and right sides, and a U-shaped notch that is located between the screw hole portions 21f and 21f and that allows the output shaft 5fe of the drive motor portion 5f to pass therethrough. The housing portion 22f is formed, and the support wall portion 8zc has two screw hole portions 21z and 21z positioned on the left and right sides, and is positioned between the screw hole portions 21z and 21z, and the output shaft 5ze of the drive motor portion 5z. A U-shaped notch accommodating portion 22z is formed. Further, side wall portions 8zp and 8zq that also serve as reinforcement are formed integrally from the left and right end positions of the support wall portion 8zc to the rear, and side wall portions 8fp and 8fq that also serve as reinforcement from the left and right end positions of the support wall portion 8fc to the rear. Are integrally formed. The support wall portion 8fc and the support wall portion 8zc are adjacent to each other in the circumferential direction, that is, the motor mounting portions 8f and 8z are arranged adjacent to each other, so that the side wall portions 8zp and 8fq are partially shared walls Form.

  As shown in FIG. 2, the support wall portion 8fc, the side wall portions 8fp, 8fq, the support wall portion 8zc, and the side wall portions 8zp, 8zq constituting the motor mounting portions 8f, 8z are the outer surface 7e of the mounting cylinder portion 7. Projecting in the same direction. As a result, the two moving mechanisms Mf and Mz of the focus lens moving mechanism Mf and the zoom lens moving mechanism Mz are provided, and the mold opening direction can be changed even when the mounting cylinder portion 7 is integrally formed of a mold with a synthetic resin. It can be simplified. That is, in FIG. 2, it is possible to open the mold only by moving a part of the mold that forms the motor mounting portions 8f and 8z upward, which can contribute to the facilitation of the mold design and manufacture (molding). . The illustrated mounting cylinder portion 7 includes both a focus lens moving mechanism Mf that moves the focus lens and a zoom lens moving mechanism Mz that moves the zoom lens. Mf and Mz can be shared, and the usability of the mounting cylinder portion 7 can be enhanced.

  Further, on the outer surface 7e of the mounting cylinder portion 7, behind the support wall portions 8fc and 8zc, drive motor portions 5f and 5z whose front portions (front portions) are supported by the support wall portions 8fc and 8zc. Projecting motor restricting portions 11f and 11z for supporting the rear portions of the motor and holding the drive motor portions 5f and 5z are integrally formed. On the other hand, on the outer surface 7e of the mounting cylinder portion 7, on the rear side of the support wall portion 8fc, a protruding terminal for attaching the connection terminals 13 for connecting the lead wires 12f, 12z of the drive motor portions 5f, 5z. The base part 14 is integrally formed. In this case, since there are two lead wires 12f and 12z derived from the drive motor portions 5f and 5z, respectively, a total of four lead wires 12f are attached to the terminal base portion 14. Therefore, as shown in FIGS. 3 and 5, the terminal base portion 14 has four screw hole portions 25 to which the fixing screws Nc are screwed to fix the connection terminals 13. In this way, if the terminal block 14 is formed integrally with the mounting cylinder 7, it is not necessary to mount the separate terminal block 14 with a fixing screw or the like, thereby further reducing the number of parts, reducing the number of assembly steps, and It can contribute to cost reduction. In addition, a protruding (pin-shaped) wiring restricting portion 15 that restricts the routing positions of the lead wires 12f and 12z of the drive motor portions 5f and 5z is integrally formed in front of the terminal block portion 14.

  On the other hand, a lens side mount portion 16 is integrally formed at the rear end portion of the mounting cylinder portion 7. Therefore, the lens side mount portion 16 can be detachably attached to a projector side mount portion (not shown). Thus, if the lens side mount portion 16 is integrally formed with the mounting cylinder portion 7, the shape (configuration) on the lens barrel 2 side can be further simplified, so that the manufacturability (moldability) of the lens barrel 2 is improved. There is an advantage that it can be further increased and can contribute to an improvement in accuracy of the lens barrel 2.

  Further, as shown in FIG. 4, a ring-shaped flange portion 26 facing the center direction is integrally formed at the rear end of the mounting cylinder portion 7, and a plurality of screw insertion holes 27 are formed in the flange portion 26. Are formed at equal intervals along the circumferential direction. For this reason, screw hole portions 28 corresponding to the positions of the screw insertion holes 27 are formed on the rear end surface of the lens barrel 2 described above. Thus, the plurality of fixing screws Nx can be inserted into the screw insertion holes 27 and screwed into the screw hole portions 28, respectively. That is, the fixing portion 9 is configured to fix the mounting cylinder portion 7 attached to the outer peripheral portion 2 s of the lens barrel 2 to the lens barrel 2.

  On the other hand, the electric lens device 1 includes two drive motor parts 5f and 5z attached to the attachment cylinder part 7. In addition, the two drive motor parts 5f and 5z illustrated are the same. As shown in FIG. 6, one drive motor unit 5 z includes a motor main body 31, a reduction gear box 32 provided at the front end of the motor main body 31, and an output shaft 5 ze protruding forward from the reduction gear box 32. . A pair of bracket portions 34 and 34 through which the mounting screws Ns and Ns are inserted are integrally formed on the left and right sides of the reduction gear box 32. The screw hole portions 21z and 21z described above are provided corresponding to the positions of the bracket portions 34 and 34, respectively. Further, a pinion 6z is provided on the output shaft 5ze. In this case, the pinion 6z is rotatably attached to the output shaft 5ze, and a pressurizing mechanism 35 for applying pressure by a spring 35s provided on the output shaft 5ze is attached. Therefore, in the rotation range of the rack 4z with which the pinion 6z is engaged, the rotation of the output shaft 5ze is transmitted to the pinion 6z without causing any slip, and at the limit end of the rotation range of the rack 4z, the stopped pinion It is set so that the rotation of the output shaft 5ze rotates idly with respect to 6z. The same applies to the other drive motor unit 5f, and 6f represents a pinion rotated by the drive motor unit 5f.

  Next, the assembly method of the electric lens device 1 according to the present embodiment and the function of each part will be described with reference to FIGS.

  First, a single piece of the mounting cylinder portion 7 is prepared, and the two drive motor portions 5 z and 5 f are attached to the mounting cylinder portion 7. In this case, the drive motor portion 5z is set on the motor attachment portion 8z, and as shown in FIG. 6, two attachment screws Ns... Are inserted through the bracket portions 34 and 34, and screwed into the screw hole portions 21z and 21z. And install. As a result, the front portion (front surface portion) of the drive motor portion 5z is fixed to the support wall portion 8zc, and the output shaft 5ze projects forward of the support wall portion 8zc through the cutout accommodating portion 22z. Then, the pinion 6z meshes with the rack 4z of the zoom adjustment ring 3z. At this time, as shown in FIG. 7, the rear portion of the drive motor unit 5z is supported by a projecting motor regulating unit 11z. Therefore, as illustrated, even when the front portion of the drive motor portion 5z is supported by the motor mounting portion 8z, the position of the drive motor portion 5z is maintained, the pinion 6z is lifted, and the rack 4z is engaged. The problem of disengagement is avoided, and the engagement between the pinion 6z and the rack 4z is reliably maintained. The other drive motor portion 5f can be attached to the motor attachment portion 8f in the same manner as the drive motor portion 5z described above. In this case, the pinion 6f meshes with the rack 4f of the focus adjustment ring 3f, and the rear portion of the drive motor portion 5f is supported by the projecting motor regulating portion 11f.

  Further, four connection terminals 13 are prepared, and the two connection terminals 13 and 13 are connected to the two lead wires 12f in one drive motor portion 5f by soldering or the like, and the two drive terminals in the other drive motor portion 5z. Two connection terminals 13 and 13 are connected to the lead wiring 12z by soldering or the like. Then, as shown in FIG. 3, the fixing screws Nc... Are inserted into the mounting holes of the connection terminals 13, respectively, and are screwed into the four screw hole portions 25 of the terminal block 14. As a result, the four connection terminals 13 are fixed to the terminal block 14 at regular intervals. At this time, the two lead wires 12f in one drive motor portion 5f reach the terminal base portion 14 through the space on the right side (drive motor portion 5f side) of the wiring restriction portion 15, thereby corresponding to the corresponding two on the right side. The connection terminals 13 and 13 are attached to the screw hole portions 25, and the two lead wires 12z in the other drive motor portion 5z are connected to the terminal block portion through the space on the left side (drive motor portion 5z side) of the wire restriction portion 15. 14, the connection terminals 13 and 13 are attached to the corresponding two screw hole portions 25 on the left side. As described above, if the protruding wiring restricting portion 15 for restricting the routing position of the lead wires 12f and 12z is provided between the terminal base portion 14 and the drive motor portions 5f and 5z, the drive motor portions 5f and 5z There is an advantage that it is possible to contribute to prevention of erroneous connection to the connection terminals 13 of the lead wirings 12f, 12z.

  Through the above assembling process, an intermediate assembly A in which the two drive motor portions 5f and 5z and the four connection terminals 13 are attached to the mounting cylinder portion 7 is obtained. As shown in FIG. 4, the intermediate assembly A is attached to the outer peripheral portion 2 s of the lens barrel 2 from the rear. Thus, the pinion 6f of the drive motor unit 5f meshes with the rack 4f of the focus adjustment ring 3f, and the pinion 6z of the drive motor unit 5z meshes with the rack 4z of the zoom adjustment ring 3z. Then, in the mounted state, a plurality of fixing screws Nx... Are inserted into the respective screw insertion holes 27 and screwed into the screw hole portions 28. Accordingly, the mounting cylinder portion 7 attached to the outer peripheral portion 2s of the lens barrel 2 is fixed to the lens barrel 2, and the electric lens device 1 shown in FIG. 5 can be obtained.

  Therefore, according to the electric lens device 1 according to the present embodiment, after the drive motor portions 5f and 5z are attached to the attachment cylinder portion 7 in advance, the attachment cylinder portion 7 is attached to the outer periphery of the lens barrel 2. Since it can be attached to the portion 2s, it is not necessary to directly attach the drive motor portions 5f and 5z to the outer peripheral portion 2s of the lens barrel 2. Therefore, it is possible to improve the assembling workability and the assembling efficiency, and avoid secondary problems such as damaging the lens barrel 2 unnecessarily. Further, there is no need for a separate bracket for attaching the drive motor portions 5f and 5z to the outer peripheral portion 2s of the lens barrel 2, and there is an attachment process for attaching the bracket to the lens barrel 2 by screwing or the like. It becomes unnecessary. Therefore, it is possible to reduce the number of parts and the number of assembling steps, and to reduce the costs associated therewith. In addition, since the mounting cylinder portion 7 is formed in a cylindrical shape that can be attached to the outer peripheral portion 2 s of the lens barrel 2, the mounting cylinder portion 7 also serves as an external cover that covers the outer peripheral portion 2 s of the lens barrel 2. Thus, the lens barrel 2 can be protected externally.

  Furthermore, since the electric lens device 1 according to the present embodiment uses the mounting cylinder portion 7 formed separately from the lens barrel 2, as shown in FIGS. It is also possible to share the lens barrels 2 (2x, 2y) having different diameters. 8A and 8B does not include the flange portion 26 shown in FIG. 4, and the fixing portion 9 is provided on the outer peripheral surface of the front portion of the mounting cylinder portion 7. Indicates the case. In FIG. 8, the same parts as those in FIGS. 1 to 7 are denoted by the same reference numerals to clarify the configuration, and detailed description thereof is omitted.

  The preferred embodiment has been described in detail above, but the present invention is not limited to such an embodiment, and the detailed configuration, shape, material, quantity, and the like are within the scope not departing from the gist of the present invention. , Can be changed, added and deleted arbitrarily. For example, the motor mounting portion 8f of the focus lens moving mechanism Mf and the motor mounting portion 8z of the zoom lens moving mechanism Mz are arranged close to each other and are formed so as to protrude from the outer surface 7e of the mounting cylinder portion 7 in the same direction. However, the two motor mounting portions 8f and 8z are arranged at positions that are opposed to the mounting cylinder portion 180 by 180 °. On the other hand, the illustrated motor restricting portions 11f and 11z, the terminal block portion 14 and the wiring restricting portion 15 are not essential and can be provided as necessary.

  The electric lens device according to the present invention can be used as an electric lens device in various optical devices such as a projector and a still camera.

  DESCRIPTION OF SYMBOLS 1: Electric lens apparatus, 2: Lens barrel, 2s: Outer peripheral part of lens barrel, 3f: Adjustment ring, 3z: Adjustment ring, 4f: Rack, 4z: Rack, 5f: Drive motor part, 5z: Drive motor section, 6f: pinion, 6z: pinion, 7: mounting cylinder section, 7e: outer surface of mounting cylinder section, 8f: motor mounting section, 8z: motor mounting section, 9: fixing section, 11f: motor regulating section , 11z: motor regulating part, 12f: lead wiring, 12z: lead wiring, 13 ...: connection terminal, 14: terminal block part, 15: wiring regulation part, 16: lens side mounting part, Mf: lens moving mechanism (focus lens) Moving mechanism), Mz: lens moving mechanism (zoom lens moving mechanism), 26: flange portion

Claims (5)

  A focus lens moving mechanism for moving a focus lens and a zoom lens, which is provided on the outer peripheral portion of the lens barrel so as to be rotatable and meshes with a pinion rotated by a drive motor unit with respect to a rack of an adjustment ring for moving the lens. In the electric lens apparatus having a zoom lens moving mechanism for moving the lens, a motor mounting portion and a lens side mount portion that are formed in a cylindrical shape that can be attached to the outer peripheral portion of the lens barrel, and at least attach the drive motor portion to the outer surface And a flange portion that is integrally formed in a ring shape facing the center direction and that can be attached to the rear end surface of the lens barrel. Thus, when the lens barrel is attached to the outer periphery of the lens barrel, the fixing portion is fixed to the lens barrel, or the mounting tube is attached to the outer periphery of the lens barrel. Motorized lens and wherein the front outer peripheral surface of the mounting tubular portion to become a fixing portion to be fixed to the lens barrel when wearing the.   The motor mounting portion of the focus lens moving mechanism and the motor mounting portion of the zoom lens moving mechanism are arranged close to each other and are formed to protrude in the same direction from the outer surface of the mounting cylinder portion. Item 4. The electric lens device according to Item 1.   2. A projecting motor restricting portion that supports the rear portion of the drive motor portion to which the front portion is fixed and holds the drive motor portion is integrally formed on the outer surface of the mounting cylinder portion. Or the electrically driven lens apparatus of 2.   The protrusion-shaped terminal base part for attaching the connecting terminal which connects the lead wiring of the said drive motor part is integrally formed in the outer surface of the said cylinder part for attachment, The Claim 1, 2, or 3 characterized by the above-mentioned. Electric lens device.   The protrusion-shaped wiring control part which controls the routing position of the lead wiring of the said drive motor part is integrally formed in the outer surface of the said cylinder part for attachment, The Claim 1 characterized by the above-mentioned. Electric lens device.

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