TWI788209B - Driving mechanism with linear clamp for rotatable ring on camera lens - Google Patents

Abstract

A driving mechanism with linear clamp for driving a rotatable ring of a lens on a camera to rotate including a base, a driving unit, a slave unit and a clamping unit is provided, wherein the rotatable ring can be a focus ring or a zoom ring. The camera is hold on the base, while the driving unit and the slave unit are glidingly disposed on the base and located at opposite sides of the lens. The driving unit includes at least a driven wheel, and the slave unit includes at least an idler wheel. The clamping unit is disposed on the base for synchronously moving the driving unit and the slave unit toward the lens to let the driven wheel and the idler wheel lean against the rotatable ring in different direction, so the idler wheel will be rotated when the driven wheel drives the rotatable ring to rotate.

Description

Linear Clamp Drive Mechanism for Camera Lens Rotatable Rings

The present invention relates to a driving mechanism, and more particularly to a driving mechanism with linear clamp for rotatable ring on camera lens.

The image quality is not only affected by the intensity of light, but also depends on whether the camera has proper focus. Taking digital single lens reflex cameras (Digital Single Lens Reflex Camera, DSLR Camera) or mirrorless interchangeable lens cameras (Mirrorless Interchangeable Lens Cameras, MILC) on the market today, most of the lenses they are equipped with already support Auto focus mode, but will also support manual focus mode, allowing users to freely adjust the focus position by turning the focus ring. For a zoom lens, the user can adjust the focal length range by turning the zoom ring before shooting, so as to adjust the camera's angle of view without changing the shooting distance. At present, some camera stabilizers and robotic arms on the market are equipped with automatic zoom and/or focusing mechanisms, allowing users to adjust and/or focus without touching the lens.

FIG. 1 shows a schematic diagram of an automatic zoom mechanism in the prior art. Please refer to shown in Fig. 1, in this prior art, camera 10 is locked on the base 20, and zoom mechanism 30 is then locked on a round rod 21 of base 20, and its gear 31 and sleeve The gear ring 32 provided on the zoom ring of the lens 11 engages. Therefore, the zoom mechanism 30 can The zoom ring of the lens 11 is driven to rotate in cooperation. In this prior art, since the zoom mechanism 30 can swing around the round rod 21 , it can be used with lenses 11 of various diameters. However, this design easily causes the lens 11 and/or the zoom mechanism 30 to deflect due to the reaction force, causing the gear 31 and the gear ring 32 to slip and have to be reinstalled.

Another driving method, as shown in the Republic of China Patent No. I373685, puts the collar on the lens and fixes it on the large gear, while the small gear meshes with the large gear and is rotated by the motor to achieve motor drive. The purpose of lens stretching. However, this design does not allow a single size collar and gear to be used with a variety of lenses of different diameters. Therefore, there is an urgent need to propose a zoom/focus driving mechanism that does not cause lens deflection and can be used with lenses of various sizes.

In order to solve the above problems, the present invention provides a linear clamping drive mechanism, which can not only be used with camera lenses of various sizes, but also maintain the stability of the camera lens with uniform clamping force when the rotatable ring driving the camera lens rotates sex.

The present invention provides a linear clamping driving mechanism for driving a rotatable ring of a lens of a camera to rotate, wherein the rotatable ring can be a focus ring or a zoom ring. The linear clamping drive mechanism is composed of a base, a driving unit, a driven unit and a clamping unit. The camera is fixed on the base, and the drive unit and the driven unit are slid on the base and located on opposite sides of the lens. The drive unit includes at least one drive wheel and the driven unit includes at least one idler wheel. The clamping unit is arranged on the base to drive the driving unit and the driven unit to move towards the lens synchronously, so that the driving wheel and the idler wheel touch the rotatable ring from different directions, wherein when the driving unit drives the rotatable ring to rotate through the driving wheel , the idler will rotate with the rotatable ring.

In one embodiment of the present invention, the above-mentioned base includes a fixing part and a sliding part. The driving unit and the driven unit are slidably arranged on the fixing part, and the clamping unit is arranged on the fixing part. The sliding part is slidably arranged on the fixing part, and the camera is fixed on the sliding part. Wherein, one of the fixing part and the sliding part has at least one guide part, and the other one of the fixing part and the sliding part has at least one sliding part, and the camera can move along one side of the lens through the cooperation of the guiding part and the sliding part. axial, lens At least one of a radial direction and a transverse direction perpendicular to the axial direction and the radial direction slides relative to the fixing member. In a specific embodiment of the present invention, the fixing member can be a sealing plate, and can have a mounting surface and a circular hole penetrating through the mounting surface. Wherein, the lens can be aimed at the round hole, and the sliding part, the driving unit, the driven unit and the clamping unit can be arranged on the installation surface around the round hole. In addition, in another specific embodiment of the present invention, the guiding part and the sliding part are composed of at least one of a linear guide mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and gear set.

In one embodiment of the present invention, the above-mentioned driving unit and the driven unit are slidably mounted on the base by at least one of a linear guide mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and gear set.

In one embodiment of the present invention, the above-mentioned drive unit includes a connecting piece and a motor. The connecting piece is slidably arranged on the base, and the driving wheel is arranged on the side of the connecting piece facing the lens. Wherein, the clamping unit is used to synchronously drive the connecting member and the driven unit to move toward the lens, and the motor is connected to the driving wheel to drive the rotatable ring to rotate through the driving wheel.

In an embodiment of the present invention, there are multiple driving wheels, and the driving unit further includes a connecting piece, a timing belt, and a motor. The connecting part is slidably arranged on the base, and at least one of the driving wheels is arranged on a side of the connecting part facing the lens. Wherein, the clamping unit is used to synchronously drive the connecting piece and the driven unit to move towards the lens, and the timing belt is sleeved on these driving wheels, and the motor is connected to one of these driving wheels to communicate with these driving wheels via the timing belt. The wheel turns the rotatable ring.

In one embodiment of the present invention, the above-mentioned driven unit further includes a connecting piece slidingly arranged on the base, and the idler wheel is arranged on the side of the connecting piece facing the lens, and the clamping unit is used to synchronously drive the driving unit Move with the connector towards the lens.

In an embodiment of the present invention, there are multiple idle wheels, and the driven unit further includes a connecting piece and a timing belt. The connecting piece is slidably arranged on the base, and at least one of the idle wheels is arranged on a side of the connecting piece facing the lens. Wherein, the clamping unit is used to synchronously drive the driving unit and the connecting piece to move towards the lens, and the timing belt is sheathed on these idle wheels.

In one embodiment of the present invention, the above-mentioned driven unit further includes an encoder connected to the idler wheel for counting the number of rotations of the rotatable ring.

In an embodiment of the present invention, the above-mentioned driving wheel and the idler wheel are respectively a pulley, a gear or a combination thereof.

In an embodiment of the present invention, the above-mentioned driving wheel and the idler wheel are respectively a rubber wheel, and a surface of the rubber wheel facing the rotatable ring has textures.

In one embodiment of the present invention, the above-mentioned clamping unit is composed of at least one of a linear guide rod mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and gear set.

In an embodiment of the present invention, the above-mentioned clamping unit is driven by a motor, so as to drive the driving unit and the driven unit to move toward the lens synchronously.

In one embodiment of the present invention, the above clamping unit includes a lead screw, a first nut and a second nut. Wherein, the lead screw has a first thread and a second thread, and the first thread and the second thread have opposite spiral directions. The first nut is screwed into the first thread, and the driving unit is connected to the first nut. The second nut is screwed with the second thread, and the driven unit is connected to the second nut. When the lead screw rotates, the first nut and the second nut will drive the driving unit and the driven unit to move towards the lens synchronously. In a specific embodiment of the present invention, the lead screw can further have a handle, and the handle can be disposed between the first thread and the second thread. In another specific embodiment of the present invention, the lead screw can further have a handle, and one of the first thread and the second thread is disposed between the other of the first thread and the second thread and the handle.

In an embodiment of the present invention, the above-mentioned linear clamping driving mechanism further includes at least one first elastic member and at least one second elastic member. Wherein, the first elastic member is disposed between the driving unit and the clamping unit, and the second elastic member is disposed between the driven unit and the clamping unit.

In an embodiment of the present invention, the above-mentioned linear clamping driving mechanism further includes a camera tilt adjustment unit disposed on the base, which includes at least one side plate, at least one rotating shaft and another driving unit. The side plate is connected to one side of the base, and the rotating shaft is connected to the side plate, and another driving unit is used to drive the rotating shaft, and then drives the side plate and the base to rotate around the rotating shaft to adjust an inclination angle of the camera. In a specific embodiment of the present invention, the above-mentioned another drive unit uses a motor to drive the side plate and the base to rotate around the rotating shaft through a gear set, a timing belt set or a combination thereof.

Based on the above, the clamping unit of the present invention drives the driving unit and the driven unit to move towards the lens synchronously, so that the driving wheel and the idler wheel are against the rotatable ring from different directions. Therefore, when the driving unit drives the rotatable ring to rotate via the driving wheel, the idler wheel will stably butt against the rotatable ring from another direction to avoid lens deflection.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, a number of embodiments are specifically cited below, together with the accompanying drawings, for detailed description as follows.

10: camera

11: Lens

20: base

21: round rod

30:Zoom mechanism

31: gear

32: gear ring

100: Linear clamping drive mechanism

110: Base

112: perforation

114: Chute

120: drive unit

122: drive wheel

130: Slave unit

132: idler

140: clamping unit

142, 144: Rack

146: gear

148:Thumb screw

149: Arrow

200: camera

210: Lens

212: rotatable ring

300: base

310:Fixer

312: Mounting surface

314: round hole

320: sliding part

322, 324: slider

326: quick release plate

400: drive unit

410: connector

412: connection plate

420: drive wheel

430: motor

500: slave unit

510: connector

512: connection plate

520: idler

530: Encoder

600: clamping unit

610: handle

620, 630: lead screw

640, 650: Nut

660, 670: Elastic parts

700: Camera tilt adjustment unit

710, 720: side panels

730, 740: rotating shaft

750: drive unit

752: motor

754, 756: Gears

758: timing belt

800: camera

FIG. 1 shows a schematic diagram of an automatic zoom mechanism in the prior art.

FIG. 2 shows a schematic view of a linear clamping driving mechanism in use according to an embodiment of the present invention.

Figure 3 is a top view of the linear clamp drive mechanism shown in Figure 2.

Fig. 4 is a sectional view along line A-A of Fig. 2 .

FIG. 5 is a schematic structural diagram of a linear clamping driving mechanism according to another embodiment of the present invention.

FIG. 6 is a schematic structural diagram of a linear clamping driving mechanism according to yet another embodiment of the present invention.

Figure 2 shows a schematic view of a linear clamping drive mechanism in use according to an embodiment of the present invention, Figure 3 is a top view of the linear clamping drive mechanism shown in Figure 2, and Figure 4 is It is a sectional view along line A-A in Fig. 2. Please also refer to Figures 2 to 4, the linear clamping drive mechanism 100 is composed of a base 110, a driving unit 120, a driven unit 130 and a clamping unit 140, for A rotatable ring 212 of a lens 210 of a camera 200 is driven to rotate. In this embodiment, the lens 210 shown in FIG. 4 is, for example, a zoom lens, and thus has two types of rotatable rings 212 , a focus ring and a zoom ring. However, in other unillustrated embodiments, the lens can also be a fixed-focus lens, and the rotatable ring can be a focus ring.

Furthermore, the camera 200 is fixed on the base 110, and the driving unit 120 and the driven The unit 130 is slid on the base 110 and located on opposite sides of the lens 210 . In addition, the driving unit 120 includes at least one driving wheel 122 , and the driven unit 130 includes at least one idler wheel 132 . In addition, the clamping unit 140 is disposed on the base 110 to drive the driving unit 120 and the driven unit 130 to move towards the lens 210 synchronously, so that the driving wheel 122 and the idler wheel 132 are against each other with a uniform clamping force from different directions. Rotatable ring 212 . Moreover, when the driving unit 120 drives the rotatable ring to rotate 212 via the driving wheel 122 , the idler wheel 132 will rotate along with the rotatable ring 212 . Therefore, the linear clamping driving mechanism 100 of the present invention can not only be used with lenses 210 of various sizes, but also will not cause the lens 210 to deflect.

More specifically, in this embodiment, the base 110 may have a through hole 112 , and the camera 200 may be fixed on the base 110 by a screw (not shown) passing through the through hole 112 . Furthermore, the base 110 can further have a chute 114, and the clamping unit 140 can be composed of two racks 142, 144 arranged in the chute 114, a gear 146 engaged between the racks 142 and 144, and A thumbscrew 148 connected to the gear 146 is assembled. Wherein, the driving unit 120 can be disposed in the sliding slot 114 via the rack 142 , and the driven unit 130 can be disposed in the sliding slot 114 via the rack 144 . Therefore, when the user turns the thumb screw 148 clockwise, the gear 146 will rotate along the direction of the arrow 149, and drive the driving unit 120 and the driven unit 130 to move towards the lens 210 synchronously through the racks 142 and 144, so as to The driving wheel 122 and the idler wheel 132 are brought against the rotatable ring 212 from different directions. On the contrary, when the user rotates the thumb screw 148 counterclockwise, the gear 146 will drive the driving unit 120 and the driven unit 130 to move synchronously towards the direction away from the lens 210 through the racks 142 and 144, so that the driving The wheel 122 and the idler wheel 132 release the rotatable ring 212 .

In addition, in other unillustrated embodiments, the driving unit and the driven unit can also be slidably arranged by at least one of a linear guide rod mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and gear set. on the base. In addition, in this embodiment, the driving wheel 122 that drives the rotatable ring 212 to rotate is directly driven by a motor (not shown) of the driving unit 120 . However, in other unillustrated embodiments, the driving unit may also be composed of a plurality of driving wheels and a motor connected to one of the driving wheels. At this time, the driving wheel that drives the rotatable ring to rotate can be indirectly driven by the motor. Moreover, the above-mentioned driving wheel may be a rubber wheel, a gear or a combination thereof. For example, a motor can directly turn a rubber wheel, which in turn can turn other rubber wheels against the rotatable ring through friction or a timing belt. Alternatively, the motor can be directly Turns a gear that engages a toothed ring that fits on a rotatable ring, engages other gears against the rotatable ring, or via a timing belt and other gear sleeves against the rotatable ring together.

FIG. 5 is a schematic structural diagram of a linear clamping driving mechanism according to another embodiment of the present invention. Please refer to FIG. 5, in this embodiment, the base 300 can be composed of a fixing part 310 and a sliding part 320, wherein the fixing part 310 and the sliding part 320 can have at least one guide part and at least A sliding part is provided so that the sliding part 320 can slide relative to the fixing part 310 . For example, the fixing member 310 can be a sealing plate, and can have a mounting surface 312 and a circular hole 314 penetrating through the mounting surface 312 . Moreover, the sliding member 320 can be composed of two sliding blocks 322 , 324 and a quick release plate 326 . Wherein, the slider 322 is slid on the mounting surface 312 through a linear guide mechanism composed of a guide rod and a guide hole, and is located below the round hole 314, and the slider 324 is also passed through a linear guide mechanism composed of a guide rod and a guide hole. The guide rod mechanism is slidably disposed on the sliding block 322 , and the quick release plate 326 is slidably disposed on the sliding block 324 via a linear slide rail mechanism composed of convex ribs and sliding grooves. In addition, the camera can be fixed on the quick release plate 326 , and the lens can be aimed at the round hole 314 . Therefore, the camera can not only slide back and forth along the axial direction of the lens with the slider 322, but also slide up and down along the radial direction of the lens with the slider 324, and slide left and right along the lateral direction of the lens with the quick release plate 326. . However, in other unillustrated embodiments, the guiding part and the sliding part may also be composed of at least one of a linear guide mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and gear set.

Furthermore, the drive unit 400 is, for example, disposed on the installation surface 312, and can be composed of a connecting piece 410, three driving wheels 420 disposed between the two connecting plates 412 of the connecting piece 410, and a timing belt (not shown). and a motor 430 disposed on the side of the connecting member 410 away from the mounting surface 312 . The connecting member 410 is slidably disposed on the left side of the circular hole 314 through a linear guide mechanism composed of a guide rod and a guide hole. Two of these driving wheels 420 are, for example, a timing pulley composed of a coaxial gear and a rubber wheel, and are arranged on the side of the connecting piece 410 facing the circular hole 314, and these driving wheels The other of 420 is a gear connected to the shaft of the motor 430 , and the timing belt is sheathed on the gears of these driving wheels 420 . Therefore, the motor 430 can drive the driving wheels 420 to rotate synchronously via the timing belt. Moreover, the surfaces of the rubber wheels of these driving wheels 420 may have grooves to improve the frictional force when the rubber wheels drive the rotatable ring to rotate.

In addition, the driven unit 500 is also arranged on the installation surface 312, for example, and can be composed of a connecting piece 510, three idler pulleys 520 arranged between the two connecting plates 512 of the connecting piece 510, and a timing belt (not shown). and an encoder 530 disposed on the side of the connecting member 510 away from the mounting surface 312 . The connecting member 510 is slidably disposed on the right side of the round hole 314 through a linear guide mechanism composed of a guide rod and a guide hole. Two of these idler wheels 520 are, for example, a timing pulley composed of a coaxial gear and a rubber wheel, and are arranged on the side of the connecting member 510 facing the circular hole 314, and these idler wheels The other of 520 is a gear connected to the shaft of the encoder 530 , and the timing belt is sheathed on the gears of these idler wheels 520 . Therefore, the idle wheels 520 can rotate synchronously through the drive of the timing belt. Moreover, the surfaces of the rubber wheels of the idler wheels 520 may have grooves to improve the frictional force when the rubber wheels drive the rotatable ring to rotate.

In addition, the clamping unit 600 is also disposed on the installation surface 312 , and can be composed of a handle 610 , two lead screws 620 , 630 and two nuts 640 , 650 . In this embodiment, the handle 610 is, for example, disposed above the circular hole 314 . Furthermore, the lead screw 620 and the nut 640 can be locked on the left side of the handle 610 and have a right-hand thread, and the driving unit 400 can be connected to the nut 640 . In addition, the lead screw 630 and the nut 650 can be locked on the right side of the handle 610 and have a left-hand thread, and the driven unit 500 can be connected to the nut 650 . Therefore, when the user turns the handle 610 upwards, the nuts 640 and 650 will move synchronously towards the handle 610 along the lead screws 620 and 630 respectively, so as to drive the driving unit 400 and the driven unit 500 to move towards the lens synchronously, thereby making the driving wheel 420 and idler 520 bear against the rotatable ring from different directions.

In this way, when the motor 430 drives the rotatable ring of the camera to rotate through the rubber wheel of the driving wheel 420, the rubber wheels of the two idler wheels 520 facing the round hole 314 will stably resist the rotatable ring from the other direction, so that Avoid lens deflection. Moreover, these two idler wheels 520 will also rotate with the rotatable ring, and synchronously drive the idler wheel 520 connected to the encoder 530 to rotate through the cooperation of its gears and the timing belt, so that the encoder 530 can calculate the The number of turns of the rotating ring. Conversely, when the user turns the handle 610 downward, the nuts 640 and 650 will move away from the handle 610 synchronously along the lead screws 620 and 630 , and drive the driving unit 400 and the driven unit 500 to move away from the lens in different directions synchronously.

However, in other unillustrated embodiments, the clamping unit may also be composed of only one handle, one lead screw and two nuts. where the left side of the lead screw is connected to one of the One nut has a right-handed thread, while the right side of the lead screw rod and the other nut have a left-handed thread, and the handle can be arranged on the left side of the right-handed thread, the right side of the left-handed thread, or between the right-handed thread and the left-handed thread. In other words, the handle 610 can not only be disposed between the driving unit 400 and the driven unit 500 as shown in FIG. 5 , but also can be disposed on the left side of the nut 640 or on the right side of the nut 650 . In addition, in this embodiment, the clamping unit 600 is, for example, composed of a linear guide mechanism, but in other unillustrated embodiments, the clamping unit may also be composed of a linear guide mechanism. A combination of at least one of a screw mechanism, a linear slide rail mechanism and a rack and gear set. In addition, in this embodiment, the clamping unit 600 is manually driven, but in other unillustrated embodiments, the clamping unit can also be driven by a motor.

Furthermore, in this embodiment, the clamping unit 600 may further include elastic members 660 , 670 . The driving unit 400 can be slidably disposed between two limiting ends of the nut 640 , while the elastic member 660 can be sleeved on the nut 640 and located between the left limiting end of the nut 640 and the driving unit 400 . Furthermore, the driven unit 500 can be slid between the two limit ends of the nut 650, and the elastic member 670 can be sleeved on the nut 640, and is located between the right limit end of the nut 650 and the driven unit. Between 500. Therefore, if the user continues to turn the handle 610 upwards to drive the nuts 640, 650 to move towards the handle 610 synchronously after the driving wheel 420 and the idler wheel 520 are against the rotatable ring, the elastic members 660, 670 will be compressed to avoid Lens damaged by excessive clamping force.

FIG. 6 is a schematic structural diagram of a linear clamping driving mechanism according to yet another embodiment of the present invention. This embodiment is similar to the previous embodiment, except that the linear clamping driving mechanism of this embodiment may further include a camera tilt adjustment unit 700 disposed on the base 300 . Please refer to FIG. 6 , the camera tilt adjustment unit 700 is, for example, composed of two side plates 710 , 720 , two rotating shafts 730 , 740 and a driving unit 750 . The side plates 710, 720 are, for example, respectively connected to the left and right sides of the base 300, and the rotating shafts 730, 740 are, for example, respectively connected to the side plates 710, 720, and the axes of the rotating shafts 730, 740 can be perpendicular to the centerline of the circular hole 314 .

Furthermore, the drive unit 750 is, for example, composed of a motor 752, two gears 754, 756 and a timing belt 758, wherein the motor 752 is installed on the inner side of the side plate 710, and the gears 754, 756 are respectively connected to The axis of the motor 752 is connected to the rotating shaft 730 , and the timing belt 758 is sheathed on the gears 754 and 756 . Therefore, the motor 752 can drive the rotating shaft through the cooperation of the gears 754, 756 and the timing belt 758, and then drive the side plates 710, 720, the base 300 and the installation The camera 800 on the base 300 swings up and down around the rotating shafts 730 and 740 to adjust the tilt angle of the camera 800 . It should be noted that, in this embodiment, the driving unit is, for example, a combination of a motor and a gear set. However, in other unillustrated embodiments, a gear set, a timing belt set or a combination thereof may also be used to replace the gear set in this embodiment.

To sum up the above, because the present invention uses the clamping unit to drive the driving unit and the driven unit to move towards the lens synchronously, so that the driving wheel and the idler wheel are against the rotatable ring from different directions. Therefore, the linear clamping driving mechanism of the present invention can be used with lenses of various sizes. Moreover, when the driving unit drives the rotatable ring to rotate via the driving wheel, the idler wheel will stably butt against the rotatable ring from another direction to avoid lens deflection. Furthermore, in the present invention, elastic members can be installed between the clamping unit and the driving unit, and between the clamping unit and the driven unit. In this way, if the user continues to turn the handle after the driving wheel and the idler wheel are against the rotatable ring, the elastic member will be compressed to prevent the lens from being damaged due to excessive clamping force.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall prevail as defined in the scope of the appended patent application.

300: base

310:Fixer

312: Mounting surface

314: round hole

320: sliding part

322, 324: slider

326: quick release plate

400: drive unit

410, 510: connectors

412, 512: connecting plate

420: drive wheel

430: motor

500: slave unit

520: idler

530: Encoder

600: clamping unit

610: handle

620, 630: lead screw

640, 650: Nut

660, 670: Elastic parts

Claims (20)

A linear clamping drive mechanism, used to drive a rotatable ring of a lens of a camera to rotate, includes: a base, the camera is fixed on the base; a drive unit is slid on the base, and It includes at least one driving wheel; a driven unit is slidably arranged on the base, and includes at least one idler wheel, wherein the driving unit and the driven unit are located on opposite sides of the lens; and a clamping unit is arranged on the The base is used to drive the driving unit and the driven unit to move towards the lens synchronously, so that the driving wheel and the idler wheel are against the rotatable ring from different directions, wherein when the driving unit is driven by the driving wheel When the rotatable ring rotates, the idler wheel will rotate with the rotatable ring. The linear clamping drive mechanism described in item 1 of the scope of the patent application, wherein the base includes: a fixing part, the driving unit and the driven unit are slidably arranged on the fixing part, and the clamping unit is arranged on the fixing part a fixed part; and a sliding part, which is slidably arranged on the fixed part, and the camera is held on the sliding part, wherein one of the fixed part and the sliding part has at least one guide part, and the fixing part and the sliding part The other has at least one sliding part, and the camera is adapted to move along an axial direction of the lens, a radial direction of the lens and perpendicular to the axial direction and the radial direction through the cooperation of the guiding part and the sliding part. at least one of a lateral direction and a lateral direction slide relative to the fixing member. The linear clamping drive mechanism described in item 2 of the scope of the patent application, wherein the fixing part is a sealing plate, and has a mounting surface and a circular hole penetrating the mounting surface, the lens is aligned with the circular hole, and The sliding part, the driving unit, the driven unit and the clamping unit are disposed on the installation surface around the circular hole. The linear clamping driving mechanism described in item 2 of the scope of the patent application, wherein the guiding part and the sliding part are composed of at least one of a linear guide rod mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and gear set made up of. The linear clamping drive mechanism described in item 1 of the scope of the patent application, wherein the drive unit and the driven unit are respectively composed of at least one of a linear guide rod mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and gear set A slide is provided on the base. The linear clamping driving mechanism as described in item 1 of the scope of the patent application, wherein the driving unit further includes: a connecting piece, which is slidably arranged on the base, and the driving wheel is arranged on the side of the connecting piece facing the lens , wherein the clamping unit is used to synchronously drive the connecting member and the driven unit to move towards the lens; and a motor is connected to the driving wheel to drive the rotatable ring to rotate through the driving wheel. According to the linear clamping driving mechanism described in item 1 of the scope of the patent application, the number of the driving wheels is multiple, and the driving unit further includes: a connecting piece, which is slid on the base, and the driving wheels At least one of them is arranged on the side of the connecting piece facing the lens, wherein the clamping unit is used to synchronously drive the connecting piece and the driven unit to move towards the lens; a timing belt is sleeved on the driving wheels; and a motor connected to one of the driving wheels to drive the rotatable ring to rotate through the timing belt and the driving wheels. The linear clip-type driving mechanism as described in item 1 of the scope of the patent application, wherein the driven unit further includes a connecting piece slid on the base, and the idler wheel is arranged on the side of the connecting piece facing the lens , and the clamping unit is used to synchronously drive the driving unit and the connecting piece to move toward the lens. According to the linear clamping drive mechanism described in item 1 of the scope of the patent application, the number of the idler wheels is multiple, and the driven unit further includes: a connecting piece, which is slidably installed on the base, and the idler wheels At least one of the wheels is arranged on the side of the connecting piece facing the lens, wherein the clamping unit is used to synchronously drive the drive unit and the connecting piece to move towards the lens; and a timing belt is sleeved on the idle wheels . In the linear clamping driving mechanism described in item 1 of the scope of the patent application, the driven unit further includes an encoder connected to the idler wheel for counting the number of rotations of the rotatable ring. According to the linear clamping driving mechanism described in item 1 of the scope of the patent application, the driving wheel and the idler wheel are respectively a rubber wheel, a gear or a combination thereof. According to the linear clamping driving mechanism described in item 1 of the scope of the patent application, wherein the driving wheel and the idler wheel are respectively a rubber wheel, and a surface of the rubber wheel facing the rotatable ring has grooves. The linear clamping drive mechanism described in item 1 of the scope of the patent application, wherein the clamping unit is composed of at least one of a linear guide rod mechanism, a lead screw mechanism, a linear slide rail mechanism, and a rack and a gear set . According to the linear clamping driving mechanism described in item 1 of the scope of the patent application, the clamping unit is driven by a motor to drive the driving unit and the driven unit to move towards the lens synchronously. The linear clamping drive mechanism described in item 1 of the scope of the patent application, wherein the clamping unit includes: A lead screw rod has a first thread and a second thread, and the first thread and the second thread have opposite directions around the axis of the thread; a first nut screwed with the first thread, and the drive unit is connected to the first nut; and a second nut screwed with the second thread, and the driven unit is connected to the second nut, when the lead screw rotates, the first nut and the second nut will drive the drive unit Synchronized with the slave unit to move towards the lens. In the linear clamping driving mechanism described in item 15 of the scope of the patent application, wherein the lead screw further has a handle, and the handle is disposed between the first thread and the second thread. The linear clamping driving mechanism as described in item 15 of the scope of the patent application, wherein the lead screw further has a handle, and one of the first thread and the second thread is arranged on the first thread and the second thread between the other and the handle. The linear clamping drive mechanism described in item 1 of the scope of the patent application further includes at least one first elastic member and at least one second elastic member, wherein the first elastic member is arranged between the driving unit and the clamping unit between, and the second elastic member is disposed between the driven unit and the clamping unit. The linear clamping drive mechanism described in item 1 of the scope of the patent application further includes a camera tilt adjustment unit arranged on the base, wherein the camera tilt adjustment unit includes: at least one side plate connected to one side of the base; at least one rotating shaft connected to the side plate; and Another driving unit is used to drive the rotating shaft, and then drive the side plate and the base to rotate around the rotating shaft, so as to adjust an inclination angle of the camera. The linear clamping drive mechanism described in item 19 of the scope of the patent application, wherein the other drive unit uses a motor to drive the side plate and the base to rotate around the shaft through a gear set, a timing belt set or a combination thereof .

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