CN111796387B - Clear electronic change circle zoom of full sea depth superelevation - Google Patents

Abstract

The invention relates to a lens, in particular to an all-sea-depth ultrahigh-definition electric variable-aperture zoom lens, which solves the problems that when the current deep sea field is detected, a fixed-focus fixed-aperture lens is used, the detection efficiency is low, high-quality images cannot be obtained, and the traditional variable-aperture zoom lens is inconsistent with the miniaturization design of a pressure-resistant closed cabin due to large volume, is unstable in imaging and easy to block and cannot meet the detection requirements of the deep sea field. The lens is characterized in that: the zoom lens comprises a main lens cone, a first front group coaxially arranged in front of the main lens cone, a focusing cam sleeved on the excircle of the first front group, a zoom cam sleeved on the excircle of the main lens cone, a second front group, a zoom group, a compensation group, an iris diaphragm assembly, a middle fixing group, an aberration stabilizing group and a rear fixing group which are sequentially and coaxially arranged in the main lens cone from front to back, and further comprises a focusing driving group and a zoom driving group; the second front group and the rear fixing group are fixedly connected with the main lens cone; the zooming group, the compensation group and the aberration stabilizing group can slide linearly along the axial direction of the main lens cone.

Description

Clear electronic change circle zoom of full sea depth superelevation

Technical Field

The invention relates to a lens, in particular to a full-sea-depth ultrahigh-definition electric variable-ring zoom lens.

Background

The zoom lens can provide a small-view-field image with high magnification and a large-view-field image with low magnification at the same time, and the aperture size of the lens can be adjusted by the variable aperture device, so that the lens can clearly image targets under different bright and dark scenes. The motorized zoom lens with the iris diaphragm device and the imaging electronic assembly are arranged in the pressure-resistant closed cabin body, and free detection and photographing of targets in the full-sea-depth field can be realized by means of the deep-sea submersible.

However, in the current deep sea field, the fixed focus and fixed aperture lens are adopted for detection, and a small-size detector with low resolution is matched, so that the detection efficiency is low, and a high-quality image cannot be obtained. The reason is that: the pressure-resistant closed chamber has strict volume limitation in the chamber, and the increase of the inner diameter of the closed chamber directly leads to the multiplication of the outer diameter and the weight of the closed chamber. Conventional zoom lenses occupy a larger axial dimension than fixed focus lenses. If ultra-high definition is realized, the lens needs to be matched with a large-size detector with high resolution, so that the radial size of the lens is increased, and meanwhile, the electric iris diaphragm device also occupies the radial size of the lens. This is in contradiction to the miniaturized design of the pressure-resistant capsule. Moreover, the imaging of the traditional zoom lens is often inconsistent in definition in the zooming process, namely, the resolution is better in a certain section of focal length, the resolution is poorer in the next section of focal length, and the imaging is unstable.

The invention discloses an iris diaphragm device, which is a Chinese patent with the title of 'an iris diaphragm device', the publication number of 'CN 103698960B' and the publication date of '2016.06.22', and discloses an iris diaphragm device, wherein a first toggle column and a second toggle column which are arranged on a rotating rod are correspondingly inserted into a first guide hole and a second guide hole, and two blades are driven to relatively slide so as to control the size of an iris diaphragm. The driving column is attached to the sliding surface of the curved guide rail by manufacturing the curved guide rail shape on the ejector rod. During the movement of the iris diaphragm driving frame, the curved guide rail can push the driving column to change the angle, thereby controlling the size of the iris diaphragm. The iris diaphragm device occupies larger radial dimension, the relationship between the size of the diaphragm and the multiplying power of the lens is limited by the shape of the curve guide rail, the size of the diaphragm must change along with the change of the lens, and the iris diaphragm cannot be controlled independently and cannot adapt to different bright and dark scenes. Simultaneously, the structural style of stirring the post through the drive of curve guide rail can lead to the card to die because of machining precision and assembly problem, influences the use.

Disclosure of Invention

The invention aims to provide an all-sea-depth ultra-high-definition electric iris zoom lens, which aims to solve the technical problems that when the current deep sea field is detected, a fixed-focus and fixed-iris lens is used, the detection efficiency is low, and a high-quality image cannot be obtained, and the traditional iris and zoom lenses are contradictory to the miniaturization design of a pressure-resistant closed cabin due to overlarge volumes, are unstable in imaging and easy to block, and cannot meet the detection requirement of the deep sea field.

The technical scheme adopted by the invention is that the full-sea-depth ultra-high-definition electric variable-coil zoom lens is characterized in that:

the zoom lens comprises a main lens cone, a first front group coaxially arranged in front of the main lens cone, a focusing cam sleeved on the excircle of the first front group, a zoom cam sleeved on the excircle of the main lens cone, a second front group, a zoom group, a compensation group, an iris diaphragm assembly, a middle fixing group, an aberration stabilizing group and a rear fixing group which are sequentially and coaxially arranged in the main lens cone from front to back, and further comprises a focusing driving group and a zoom driving group;

a plurality of guide rails parallel to the axis direction of the main lens barrel are fixedly arranged in the main lens barrel;

the first front group comprises a first front lens cone, a first front lens group and a focusing lens group, and the first front lens group and the focusing lens group are coaxially arranged in the first front lens cone from front to back in sequence; the first front lens group is fixedly connected with the main lens cone through a first front lens cone; a first guide nail is fixedly arranged on the focusing lens group along the radial direction; the first front lens cone is provided with a first straight line groove which is matched with the first guide nail and is arranged along the front-back direction; the first guide nail penetrates through the first linear groove and then is inserted into a focusing cam curve groove arranged on the focusing cam; the focusing cam is rotationally connected with the first front lens barrel;

the second front group and the rear fixing group are fixedly connected with the main lens cone;

the zooming group, the compensation group and the aberration stabilizing group are respectively in linear sliding connection with at least two guide rails of the plurality of guide rails, and a second guide nail, a third guide nail and a fourth guide nail are respectively and fixedly arranged on the zooming group, the compensation group and the aberration stabilizing group in a one-to-one correspondence manner along the radial direction; the main lens cone is provided with a second linear groove, a third linear groove and a fourth linear groove which are correspondingly matched with the second guide nail, the third guide nail and the fourth guide nail one by one and are along the front-back direction; the second guide nail penetrates through the second linear groove and then is inserted into a first zooming cam curve groove arranged on the zooming cam; the third guide nail penetrates through the third linear groove and then is inserted into a second zooming cam curve groove arranged on the zooming cam; the fourth guide nail penetrates through the fourth linear groove and then is inserted into a zoom cam curve groove III arranged on the zoom cam;

the iris diaphragm assembly comprises an intermediate substrate, a diaphragm and a motor; the middle substrate is fixedly connected with the main lens cone; the aperture and the motor are both arranged on the middle substrate, and the motor drives the deflector rod on the aperture to rotate so as to adjust the aperture size of the aperture;

the middle fixing group is coaxially and fixedly arranged on the middle substrate;

the focusing driving group is used for driving the focusing cam to rotate so as to drive the focusing lens group to move along the front-back direction, and the focusing and focusing functions of the lens are realized;

the zooming driving group is used for driving the zooming cam to rotate, so that the zooming group, the compensation group and the aberration stabilizing group are driven to move in a front-back direction in a correlation mode, and focal length change is achieved.

The words indicating the orientation such as the front and rear mentioned above only indicate the relative positional relationship.

Further, in order to achieve compact space and reliable structure, the iris diaphragm assembly further comprises an iris diaphragm seat, a large gear and a small gear I;

the diaphragm seat is coaxially and fixedly arranged on the middle base plate, and a third abdicating groove matched with the deflector rod is formed in the cylindrical surface of the diaphragm seat along the circumferential direction;

the bull gear is sleeved on the outer circle of the aperture seat and is rotationally connected with the aperture seat; a clamping groove matched with the shape of the end part of the shifting lever is arranged on the inner cylindrical surface of the big gear;

the diaphragm is arranged in an inner hole of the diaphragm seat and is arranged on the middle substrate through the diaphragm seat; the deflector rod on the aperture penetrates through the third abdicating groove and then extends into the clamping groove;

the first pinion is arranged on an output shaft of the motor; the motor drives the large gear to rotate through the first small gear, and drives the shifting lever to rotate, so that the aperture size of the aperture is adjusted.

Furthermore, in order to detect the rotation angle of the bull gear in real time, the size of the aperture is accurately controlled through the corresponding relation between the aperture and the rotation angle of the bull gear, and the iris diaphragm assembly further comprises a potentiometer and a pinion II;

the potentiometer is arranged on the middle substrate;

the second pinion is fixed on the potentiometer shaft and meshed with the large gear.

Further, the aperture range of the diaphragm is 1-22 mm.

Furthermore, in order to make the structure more compact, reduce the volume as much as possible, make the support to the zoom group, the compensation group and the aberration stabilization group more stable, and ensure the consistency and stability of the optical axis in the movement process, the number of the guide rails is four, and the axes of the four guide rails are uniformly distributed on the same cylindrical surface taking the axis of the main lens cone as the axis; the four guide rails are all cylindrical;

defining: the four guide rails are respectively a first cylindrical guide rail, a second cylindrical guide rail, a third cylindrical guide rail and a fourth cylindrical guide rail in sequence in the clockwise direction;

the zooming group comprises a zooming lens group and a zooming carriage; the zoom lens group is coaxially and fixedly arranged in the inner circle of the zoom carriage; one side of the zooming carriage in the radial direction is provided with a first cylindrical boss which is parallel to the axis of the zooming carriage and protrudes backwards, and the first cylindrical boss is provided with a coaxial first circular through hole; the other side of the zooming sliding frame in the radial direction is provided with a first U-shaped bayonet, and a U-shaped opening of the first U-shaped bayonet points to the outer side in the radial direction; the zooming group is in linear sliding connection with the first cylindrical guide rail through the first round through hole, and the first U-shaped bayonet is in linear sliding connection with the third cylindrical guide rail and is coaxially arranged in the main lens cone;

the compensation group comprises a compensation lens group and a compensation sliding frame; the compensation lens group is coaxially and fixedly arranged in the inner circle of the compensation sliding frame; a second cylindrical boss which is protruded forwards and has an axis parallel to the axis of the compensation sliding frame is arranged on one side of the compensation sliding frame in the radial direction, and a coaxial second circular through hole is formed in the second cylindrical boss; a second U-shaped bayonet is arranged on the other side of the compensation sliding frame in the radial direction, and a U-shaped opening of the second U-shaped bayonet points to the outer side in the radial direction; the compensation group is in linear sliding connection with the second cylindrical guide rail through the second round through hole, and the second U-shaped bayonet is in linear sliding connection with the fourth cylindrical guide rail and is coaxially arranged in the main lens cone;

the aberration stabilizing group comprises an aberration stabilizing lens group and an aberration stabilizing sliding frame; the aberration stabilizing lens group is coaxially and fixedly arranged in the inner circle of the aberration stabilizing sliding frame; a third cylindrical boss which is parallel to the axis of the aberration stabilizing sliding frame and protrudes to the front side and the rear side is arranged on one side of the aberration stabilizing sliding frame in the radial direction, and a coaxial third circular through hole is formed in the third cylindrical boss; a third U-shaped bayonet is arranged on the other side of the aberration stabilizing sliding frame in the radial direction, and a U-shaped opening of the third U-shaped bayonet points to the outer side in the radial direction; the aberration stabilizing group is coaxially arranged inside the main lens cone through a third circular through hole and a third cylindrical guide rail which are in linear sliding connection, and a third U-shaped bayonet is in linear sliding connection with the first cylindrical guide rail.

Furthermore, the zooming group also comprises a first cylindrical sliding sleeve, two sliding sleeve pressing rings I and a U-shaped clamping groove I; the first cylindrical sliding sleeve is arranged in the first round through hole and is tightly pressed in the first round through hole through the two sliding sleeve pressing rings arranged at the two ends of the first cylindrical sliding sleeve respectively; the shape of the U-shaped clamping groove I is as follows: outward flanges are arranged on the end face of one end of the first hollow U-shaped structure along two sides of the symmetrical axis of the U shape; the first U-shaped clamping groove is clamped in the first U-shaped clamping opening and fixedly connected with the zooming sliding frame; the first round through hole is in linear sliding connection with the first cylindrical guide rail through the first cylindrical sliding sleeve; the first U-shaped bayonet is in linear sliding connection with the third cylindrical guide rail through the first U-shaped clamping groove; the ratio of the length of the first cylindrical sliding sleeve to the vertical distance between the first cylindrical guide rail and the axis of the third cylindrical guide rail is more than or equal to 0.5;

the compensation group further comprises a second cylindrical sliding sleeve, two sliding sleeve pressing rings II and a U-shaped clamping groove II; the second cylindrical sliding sleeve is arranged in the second round through hole and is tightly pressed in the second round through hole through the two sliding sleeve pressing rings II which are respectively arranged at the two ends of the second cylindrical sliding sleeve; the shape of the U-shaped clamping groove II is as follows: outward flanges are arranged on the end face of one end of the second hollow U-shaped structure along two sides of the symmetrical axis of the U shape; the U-shaped clamping groove II is clamped in the second U-shaped clamping opening and fixedly connected with the compensation sliding frame; the second round through hole is in linear sliding connection with the second cylindrical guide rail through a second cylindrical sliding sleeve; the second U-shaped bayonet is in linear sliding connection with the fourth cylindrical guide rail through a second U-shaped clamping groove; the ratio of the length of the second cylindrical sliding sleeve to the vertical distance between the second cylindrical guide rail and the axis of the fourth cylindrical guide rail is more than or equal to 0.5;

the aberration stabilizing group further comprises a third cylindrical sliding sleeve, two sliding sleeve pressing rings III and a U-shaped clamping groove III; the third cylindrical sliding sleeve is arranged in the third round through hole and is tightly pressed in the third round through hole through the two sliding sleeve pressing rings arranged at the two ends of the third cylindrical sliding sleeve respectively; the shape of the U-shaped clamping groove III is as follows: outward flanges are arranged on the end face of one end of the third hollow U-shaped structure along two sides of the symmetry axis of the U shape; the U-shaped clamping groove III is arranged in a third U-shaped clamping opening and fixedly connected with the aberration stabilizing sliding frame; the third round through hole is in linear sliding connection with the third cylindrical guide rail through a third cylindrical sliding sleeve; the third U-shaped bayonet is in linear sliding connection with the first cylindrical guide rail through a third U-shaped clamping groove; the ratio of the length of the third cylindrical sliding sleeve to the vertical distance between the third cylindrical guide rail and the axis of the first cylindrical guide rail is more than or equal to 0.5. Therefore, the cylindrical sliding sleeve and the cylindrical guide rail form a precise sliding pair, and the consistency and stability of the optical axis of the cylindrical sliding sleeve in the movement process are ensured. The U-shaped clamping groove limits the rotation of the three motion groups around the optical axis, and the sliding frame is prevented from being clamped due to the fact that the two cylindrical guide rails are not parallel and the machining error of the sliding frame is caused in the motion process, so that the adjustment is facilitated. The coaxiality of the three motion groups is jointly ensured by the cylindrical sliding sleeve and the U-shaped clamping groove.

Furthermore, in order to facilitate replacement of parts and assembly, the diameters and the lengths of the first round through hole, the second round through hole and the third round through hole are correspondingly equal; the first U-shaped bayonet, the second U-shaped bayonet and the third U-shaped bayonet are equal in size;

the first cylindrical sliding sleeve, the second cylindrical sliding sleeve and the third cylindrical sliding sleeve are the same parts; the sliding sleeve pressing ring I, the sliding sleeve pressing ring II and the sliding sleeve pressing ring III are the same parts; the U-shaped clamping groove I, the U-shaped clamping groove II and the U-shaped clamping groove III are identical parts.

Furthermore, in order to ensure the coaxiality of each lens group and the main lens cone, the lens in the first front lens group, the lens in the focusing lens group, the second front lens cone and the main lens cone, the second front lens group and the second front lens cone, the zoom lens group and the zoom carriage, the compensation lens group and the compensation carriage, the middle substrate and the main lens cone, the middle fixed lens cone and the middle substrate, the middle fixed lens group and the middle fixed lens cone, the aberration stabilizing lens group and the aberration stabilizing carriage, the rear fixed lens cone and the main lens cone, and the rear fixed lens group and the rear fixed lens cone are all installed through a centering process.

Further, the focusing driving group and the zooming driving group are both arranged on the outer side of the main lens barrel and respectively drive the focusing cam and the zooming cam to rotate correspondingly through gear transmission.

Further, for convenience of installation in the cabin body and convenience of connection with the detector, the device also comprises an installation bracket and a detector interface;

the mounting bracket is fixedly mounted on the outer side of the main lens cone and used for connecting the lens with the external cabin body;

the detector interface is positioned behind the main lens cone, fixedly connected with the rear fixing group and used for connecting the imaging detector assembly.

The invention has the beneficial effects that:

(1) according to the full-sea-depth ultrahigh-definition electric variable-ring zoom lens, the axial size of the lens can be effectively compressed through linkage zooming of the three groups of motion groups; meanwhile, the iris diaphragm assembly can be integrally arranged in the main lens cone, the radial size of the lens is effectively reduced, the iris diaphragm assembly can be arranged between the moving groups, the axial size of the lens is not occupied, and the iris diaphragm assembly is compact in structure and small in size; the lens can be matched with a 4 Kx 4K resolution detector, has the functions of an electric iris diaphragm and an electric zoom, can ensure the stability of each motion mechanism, provides excellent image quality and improves the efficiency of deep sea detection; therefore, the invention solves the technical problems that when the current deep sea field is detected, a fixed-focus and fixed-aperture lens is used, the detection efficiency is lower, and high-quality images cannot be obtained, and the traditional iris diaphragm and zoom lens are inconsistent with the miniaturization design of a pressure-resistant closed cabin due to overlarge volume, are unstable in imaging and easy to block, and cannot meet the detection requirements of the deep sea field. The invention has novel and reliable structure, and realizes the miniaturization and light weight of the system while ensuring the imaging quality of the lens and the stability of the optical axis.

(2) The invention provides an ultra-high-definition lens which can be applied to the field of full-sea depth detection, has a large field angle and has the functions of an electric iris diaphragm and an electric zoom.

(3) The electric iris diaphragm assembly preferably adjusts the aperture size of the iris diaphragm through gear transmission, and has compact space and reliable structure.

(4) The invention preferably arranges the zoom group, the compensation group and the aberration stabilization group on the cylindrical sliding sleeve and the U-shaped clamping groove, thereby effectively reducing the friction force in the motion process, improving the stability of the optical axis and preventing the system from being blocked. Meanwhile, each sliding sleeve and each U-shaped clamping groove can be produced and processed into the same specification, and both belong to parts easy to replace and are convenient to assemble.

(5) According to the invention, preferably, each fixed group is installed through a centering process, so that the coaxiality of each fixed group and the main lens cone is improved; the zoom group, the compensation group and the aberration stabilizing group are matched with the cylindrical guide rail through the cylindrical sliding sleeve and the U-shaped clamping groove, and the coaxiality of the zoom group, the compensation group and the aberration stabilizing group with the main lens cone in the movement process is improved. The whole coaxiality of the lens is improved, the imaging quality is improved, and the imaging stability can be ensured.

(6) The full-sea-depth ultra-high-definition electric variable-coil zoom lens can be mounted in a sealed cabin body with the inner diameter of 110mm, underwater environment can be clearly imaged through plane sapphire window glass with the thickness of 30mm, the field angle can be changed from 6 degrees to 60 degrees, the zoom ratio can reach 10 times, and the F number can be changed from 3 degrees to infinity.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present invention;

FIG. 3 is a schematic diagram of the installation structure of the zoom group, the compensation group and the aberration stabilizing group in the embodiment of the present invention;

fig. 4 is a schematic structural view of a main barrel in an embodiment of the present invention;

FIG. 5 is a schematic structural view of the first front group assembled with a focusing cam in an embodiment of the present invention (before a centering flange is cut away);

FIG. 6 is an exploded view of a zoom group in an embodiment of the present invention;

FIG. 7 is an exploded view of a compensation group in an embodiment of the present invention;

FIG. 8 is an exploded view of the variable aperture assembly assembled with the rear mounting assembly in an embodiment of the present invention;

FIG. 9 is an exploded view of an aberration stabilizing group in an embodiment of the present invention;

fig. 10 is a schematic structural view of a magnification-varying cam in the embodiment of the present invention.

The reference numerals in the drawings are explained as follows:

1-main lens cone, 101-lug, 102-round hole, 103-mounting ear, 104-threaded hole, 2-first front group, 201-first front lens cone, 202-first front lens group, 203-focusing lens group, 204-centering flange, 205-first straight line groove, 206-first guide nail, 3-second front group, 301-second front lens cone, 302-second front lens group, 4-zoom group, 401-zoom lens group, 402-zoom carriage, 403-first cylindrical sliding sleeve, 404-sliding sleeve pressing ring I, 405-U type clamping groove I, 406-first round through hole, 407-first abdicating groove, 408-second guide nail, 5-compensating group, 501-compensating lens group, 502-compensating carriage, 503-second cylindrical sliding sleeve, 504-sliding sleeve pressing ring II, 505-U-shaped clamping groove II, 506-second circular through hole, 507-third guide pin, 6-iris diaphragm assembly, 601-middle base plate, 602-iris diaphragm seat, 603-big gear, 604-deflector rod, 605-snap ring, 606-iris diaphragm, 607-pinion gear I, 608-pinion gear II, 609-motor, 6010-potentiometer, 6011-third abdicating groove, 7-middle fixing group, 701-middle fixing lens cone, 702-middle fixing lens group, 8-aberration stabilizing group, 801-aberration stabilizing lens group, 802-aberration stabilizing carriage, 803-third cylindrical sliding sleeve, 804-sliding sleeve pressing ring III, 805-U-shaped clamping groove III, 806-third circular through hole, 807-fourth guide pin, 9-rear fixing group, 901-rear fixing lens cone, 902-a rear fixed mirror group, 10-a zoom cam, 1001-a zoom cam curve groove I, 1002-a zoom cam curve groove II, 1003-a zoom cam curve groove III, 11-a zoom driving group, 12-a focusing cam, 13-a focusing driving group, 14-a mounting bracket, 15-a detector interface, 16-a first cylindrical guide rail, 17-a second cylindrical guide rail, 18-a third cylindrical guide rail, 19-a fourth cylindrical guide rail and 20-a guide rail pressing plate.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the full-sea-depth ultra-high-definition electric variable-aperture zoom lens of the invention comprises a main lens barrel 1, a first front group 2 coaxially installed in front of the main lens barrel 1, a focusing cam 12 sleeved on the excircle of the first front group 2, a zoom cam 10 sleeved on the excircle of the main lens barrel 1, a second front group 3, a zoom group 4, a compensation group 5, an aperture-variable assembly 6, a middle fixing group 7, an aberration stabilizing group 8 and a rear fixing group 9 coaxially installed inside the main lens barrel 1 from front to rear, and further comprises a focusing driving group 13 and a zoom driving group 11.

Referring to fig. 2 and 3, a plurality of guide rails parallel to the axial direction of the main barrel 1 are fixedly disposed inside the main barrel. In this embodiment, in order to make the structure more compact, reduce the volume as much as possible, make the support for the zoom group 4, the compensation group 5, and the aberration stabilization group 8 more stable, and ensure the consistency and stability of the optical axis during the movement process, it is preferable that the number of the guide rails is four, and the axes of the four guide rails are uniformly distributed on the same cylindrical surface with the axis of the main barrel 1 as the axis; the four guide rails are all cylindrical. Defining: of the four guide rails, a first cylindrical guide rail 16, a second cylindrical guide rail 17, a third cylindrical guide rail 18 and a fourth cylindrical guide rail 19 are sequentially arranged in the clockwise direction. In this embodiment, the axes of the four guide rails are uniformly distributed on a cylindrical surface with the axis of the main barrel 1 as the axis and the diameter of 50mm, the diameters of the four guide rails are all 4mm, the lengths of the four guide rails are all 120mm, and the straightness is 0.003 mm. Referring to fig. 4, the rear end of the main barrel 1 is provided with four lugs 101, the lugs 101 are respectively provided with four round holes 102 matched with the cylindrical guide rail, the tolerance of the uniform distribution degree of the round holes 102 is 90 degrees plus or minus 3', the inner diameter of the round holes 102 is required to be matched with the cylindrical guide rail, and the matching clearance is not more than 0.01 mm. Referring to fig. 3 and 2, the rail pressing plate 20 presses four rails and is fixed to the main barrel 1 by four M2.5 countersunk screws. The lug 101 is also provided with a threaded hole 104 associated with the rear fixing group 9. Four mounting ears 103 are also left in the middle of the main barrel 1 for mounting the iris diaphragm assembly 6.

Referring to fig. 5, the first front group 2 includes a first front barrel 201, and a first front lens group 202 and a focusing lens group 203 coaxially disposed in the first front barrel 201 from front to back. The first front lens group 202 is fixedly connected with the main lens barrel 1 through a first front lens barrel 201. In this embodiment, the first front barrel 201 and the main barrel 1 are fixedly connected by 8M 3 screws. A first guide pin 206 is fixedly arranged on the focusing mirror group 203 along the radial direction; a first straight line groove 205 which is matched with the first guide nail 206 and is along the front-back direction is arranged on the first front lens barrel 201; after passing through the first straight line groove 205, the first guide pin 206 is inserted into a focusing cam curve groove arranged on the focusing cam 12; the focus cam 12 is rotatably connected to the first front barrel 201. In order to ensure the coaxiality, in this embodiment, it is preferable that a centering flange 204 for connecting with a centering lathe in the secondary finish turning is left on the first front barrel 201, the first front barrel 201 is connected to the centering lathe through the centering flange 204, the coaxiality of the inner circle and the outer circle of the first front barrel 201 is ensured by the secondary finish turning, and the fitting precision of the first front barrel 201 and the main barrel 1 is ensured at the same time. After the first front group 2 has been assembled, the centering flange 204 is cut along the cut plane. The first front lens group 202 and the focusing lens group 203 are both manufactured by a centering process, so that the coaxiality of optical axes of the lenses is ensured. In this embodiment, the fit clearance between the first front lens group 202 and the first front lens barrel 201 is 0.008 mm. The fit clearance between the focusing lens group 203 and the first front lens barrel 201 is 0.01mm, and lubricating grease is smeared on the outer circle during installation, so that the smooth front and back movement of the focusing lens group is ensured. The focusing cam 12 is rotationally connected with the first front lens barrel 201 through a precise ball shaft system, and the balls are lubricated by lubricating grease, so that the modulation cam 12 is ensured to rotate smoothly.

Referring to fig. 2, the second front group 3 and the rear fixing group 9 are both fixedly connected to the main barrel 1. In this embodiment, the second front group 3 is attached to the front part of the main barrel 1 by a pressing ring. The rear fixing group 9 is fixed to the rear end of the main barrel 1 by 4M 3 screws.

Referring to fig. 2, the second front group 3 includes a second front barrel 301 and a second front lens group 302 coaxially and fixedly mounted in an inner circle of the second front barrel 301. In order to ensure the coaxiality, in this embodiment, four countersunk holes for connecting with a centering lathe during secondary finish turning are preferably reserved on the second front barrel 301, and the coaxiality of the inner circle and the outer circle of the second front barrel 301 is ensured through the secondary finish turning, and meanwhile, the matching precision of the second front barrel 301 and the main barrel 1 is ensured. The second front lens group 302 is coaxially and fixedly mounted in the inner circle of the second front lens barrel 301 through a centering process, and the fit clearance is 0.008 mm.

Referring to fig. 2, the rear fixing group 9 includes a rear fixing lens barrel 901 and a rear fixing lens group 902 coaxially and fixedly installed in an inner circle of the rear fixing lens barrel 901. In order to ensure the coaxiality, in this embodiment, it is preferable that the rear fixed barrel 901 ensures that the coaxiality of the inner circle and the outer circle is 0.01mm by a matching lathe when assembling, and the matching gap between the outer circle of the rear fixed barrel and the inner circle of the rear end of the main barrel 1 is 0.01 mm. The rear fixed mirror group 902 is coaxially and fixedly installed in the inner circle of the rear fixed lens barrel 901 through a centering process, and the fit clearance is 0.008 mm.

Referring to fig. 1, 2, 3, 6, 7, 9 and 10, the zoom group 4, the compensation group 5 and the aberration stabilizing group 8 are respectively connected with at least two of the guide rails in a linear sliding manner, and a second guide pin 408, a third guide pin 507 and a fourth guide pin 807 are respectively and fixedly installed on the three in a radial direction in a one-to-one correspondence manner; the main barrel 1 is provided with a second linear groove, a third linear groove and a fourth linear groove which are correspondingly matched with the second guide nail 408, the third guide nail 507 and the fourth guide nail 807 one by one and are along the front-back direction; after passing through the second linear groove, the second guide pin 408 is inserted into a first zoom cam curved groove 1001 arranged on the zoom cam 10; after passing through the third linear groove, the third guide pin 507 is inserted into a second zoom cam curved groove 1002 arranged on the zoom cam 10; the fourth guide pin 807 passes through the fourth linear groove and is inserted into the zoom cam curved groove three 1003 provided in the zoom cam 10.

Referring to fig. 6, the variable magnification group 4 includes a variable magnification lens group 401 and a variable magnification carriage 402; the zoom lens group 401 is coaxially and fixedly installed in the inner circle of the zoom carriage 402. In order to ensure the coaxiality, the present embodiment preferably fixes and mounts the variable magnification lens group 401 coaxially within the inner circle of the variable magnification carriage 402 by a centering process. One side of the magnification-varying carriage 402 in the radial direction is provided with a first cylindrical boss protruding backward with an axis parallel to the axis of the magnification-varying carriage 402, and the first cylindrical boss is provided with a coaxial first circular through hole 406. In this embodiment, the parallelism between the axis of the first circular through hole 406 and the central axis of the zoom carriage 402 is 0.01 mm. The other side of the zooming carriage 402 along the radial direction is provided with a first U-shaped bayonet, and the U-shaped opening of the first U-shaped bayonet points to the outside of the radial direction. The zooming group 4 is linearly and slidably connected with the first cylindrical guide rail 16 through the first circular through hole 406, and is linearly and slidably connected with the third cylindrical guide rail 18 through the first U-shaped bayonet, and is coaxially arranged inside the main lens barrel 1. In this embodiment, in order to ensure the stability of the optical axis during the movement of the zoom group 4 and to facilitate the adjustment and prevent the locking, the zoom group 4 preferably further includes a first cylindrical sliding sleeve 403, two sliding sleeve pressing rings 404 and a U-shaped slot 405. The first cylindrical sliding sleeve 403 is arranged in the first circular through hole 406 and is pressed in the first circular through hole 406 through two sliding sleeve pressing rings 404 respectively arranged at two ends of the first cylindrical sliding sleeve. The shape of the first U-shaped clamping groove 405 is as follows: outward flanges are arranged on the end face of one end of the first hollow U-shaped structure along two sides of the symmetrical axis of the U shape; the first U-shaped clamping groove 405 is clamped in the first U-shaped clamping opening and fixedly connected with the zooming sliding frame 402. The first round through hole 406 is linearly and slidably connected with the first cylindrical guide rail 16 through the first cylindrical sliding sleeve 403; the first U-shaped bayonet is in linear sliding connection with the third cylindrical guide rail 18 through a first U-shaped clamping groove 405. In order to ensure the consistency and stability of the optical axis during the movement and not to make the lens volume too large, the ratio of the length of the first cylindrical sliding sleeve 403 to the vertical distance between the axes of the first cylindrical guide 16 and the third cylindrical guide 18 is preferably greater than or equal to 0.5. In this embodiment, the diameter of the outer circle of the first cylindrical sliding sleeve 403 is 7mm, the length thereof is 33mm, and the fit clearance between the inner circle thereof and the first cylindrical guide rail 16 is 0.01 mm. The first U-shaped clamping groove 405 is tightly matched with the first U-shaped clamping groove and is fixed on the zooming carriage 402 through two M2 countersunk head screws. The first U-shaped slot 405 has a slot width dimension matching the third cylindrical rail 18 and a 0.5mm gap is left in the radial direction. The first U-shaped slot 405 limits the rotation of the zoom lens group 401 around the optical axis, and prevents the zoom lens group 401 from being jammed due to the unparallel of the two cylindrical guide rails and the machining error of the sliding frame in the moving process. First cylinder sliding sleeve 403 and U type draw-in groove 405 all select tin bronze material to make, and roughness is less than 0.8 to scribble lubricating grease when the installation, reduce the sliding friction power, promote the motion smoothness degree. The zoom sliding frame 402 is provided with a first abdicating groove 407 to avoid interference with other cylindrical guide rails.

Referring to fig. 7, the compensation lens group 5 includes a compensation lens group 501 and a compensation carriage 502. The compensating mirror group 501 is coaxially and fixedly installed in the inner circle of the compensating carriage 502. In order to ensure the coaxiality, the present embodiment preferably fixes and installs the compensating mirror group 501 coaxially inside the inner circle of the compensating carriage 502 through a centering process. One side of the compensating carriage 502 in the radial direction is provided with a second cylindrical boss protruding forward with an axis parallel to the axis of the compensating carriage 502, and the second cylindrical boss is provided with a coaxial second circular through hole 506. In this embodiment, the parallelism between the axis of the second circular through hole 506 and the central axis of the compensating carriage 502 is 0.01 mm. The compensation carriage 502 is provided with a second U-shaped bayonet on the other side in the radial direction, and the U-shaped opening of the second U-shaped bayonet points to the outside in the radial direction. The compensation group 5 is linearly and slidably connected with the second cylindrical guide rail 17 through the second circular through hole 506, and is linearly and slidably connected with the fourth cylindrical guide rail 19 through the second U-shaped bayonet, and is coaxially arranged inside the main lens barrel 1. In order to ensure the stability of the optical axis during the movement of the compensation assembly 5 and at the same time to facilitate the adjustment and prevent the locking, the compensation assembly 5 of the present embodiment preferably further includes a second cylindrical sliding sleeve 503, two second sliding sleeve pressing rings 504 and a second U-shaped clamping groove 505. The second cylindrical sliding sleeve 503 is arranged in the second round through hole 506 and is pressed tightly in the second round through hole 506 through two sliding sleeve pressing rings two 504 respectively arranged at the two ends of the second cylindrical sliding sleeve; the shape of the U-shaped slot II 505 is as follows: and outward flanges are arranged on the end face of one end of the second hollow U-shaped structure along two sides of the symmetry axis of the U-shape. The second U-shaped clamping groove 505 is clamped in the second U-shaped clamping opening and fixedly connected with the compensation sliding frame 502; the second round through hole 506 is linearly connected with the second cylindrical guide rail 17 in a sliding manner through the second cylindrical sliding sleeve 503; the second U-shaped bayonet is linearly and slidably connected with the fourth cylindrical guide rail 19 through a second U-shaped slot 505. In order to ensure the consistency and stability of the optical axis during the movement process and not to make the volume of the lens too large, the ratio of the length of the second cylindrical sliding sleeve 503 to the vertical distance between the axes of the second cylindrical guide rail 17 and the fourth cylindrical guide rail 19 is preferably greater than or equal to 0.5. In this embodiment, the fit clearance between the inner circle of the second cylindrical sliding sleeve 503 and the second cylindrical guide rail 17 is 0.01 mm. The second U-shaped slot 505 is tightly fitted with the second U-shaped bayonet and is fixed to the compensating carriage 502 by two M2 countersunk screws. The width of the U-shaped slot II 505 is matched with the fourth cylindrical guide rail 19, and a gap of 0.5mm is reserved in the radial direction. The U-shaped second slot 505 limits the rotation of the compensating lens assembly 501 around the optical axis, and prevents the compensating lens assembly 501 from being locked due to the non-parallel of the two cylindrical guide rails and the machining error of the sliding frame during the movement process. The second cylindrical sliding sleeve (503), the second U-shaped clamping groove (505), the first cylindrical sliding sleeve 403 and the first U-shaped clamping groove (405) are made of the same material and have the same specification. When the device is installed, lubricating grease is coated, so that the sliding friction force is reduced, and the movement fluency is improved.

Referring to fig. 9, the aberration stabilizing group 8 includes an aberration stabilizing lens group 801 and an aberration stabilizing carriage 802; the aberration stabilizing mirror group 801 is coaxially and fixedly mounted within the inner circle of the aberration stabilizing sledge 802. In order to ensure the coaxiality, the present embodiment preferably fixes the aberration stabilizing mirror group 801 coaxially within the inner circle of the aberration stabilizing carriage 802 by a centering process. One side of the aberration-stabilizing carriage 802 in the radial direction is provided with a third cylindrical boss which has an axis parallel to the axis of the aberration-stabilizing carriage 802 and protrudes to both the front and rear sides, and the third cylindrical boss is provided with a coaxial third circular through hole 806. In this embodiment, the parallelism of the axis of the third circular through hole 806 and the central axis of the aberration-stabilizing carriage 802 is 0.01 mm. The other side of the aberration stabilizing carriage 802 in the radial direction is provided with a third U-shaped bayonet, and a U-shaped opening of the third U-shaped bayonet points to the outside in the radial direction. The aberration stabilizing group 8 is linearly and slidably connected with the third cylindrical guide rail 18 through the third circular through hole 806, and is linearly and slidably connected with the first cylindrical guide rail 16 through the third U-shaped bayonet, and is coaxially arranged inside the main barrel 1. In order to ensure the optical axis stability of the aberration stabilizing group 8 during the movement process and simultaneously facilitate the adjustment and prevent the locking, the aberration stabilizing group 8 of the present embodiment preferably further includes a third cylindrical sliding sleeve 803, two sliding sleeve pressing rings three 804 and a U-shaped clamping groove three 805. The third cylindrical sliding sleeve 803 is arranged in the third round through hole 806 and is compressed in the third round through hole 806 by two sliding sleeve pressing rings 804 respectively arranged at two ends of the third cylindrical sliding sleeve. The shape of the U-shaped clamping groove III 805 is as follows: and outward flanges are arranged on the end face of one end of the third hollow U-shaped structure along two sides of the symmetry axis of the U-shape. And a U-shaped clamping groove III (805) is clamped in the third U-shaped clamping groove and fixedly connected with the aberration stabilizing sliding frame 802. The third round through hole 806 is linearly connected with the third cylindrical guide rail 18 in a sliding manner through the third cylindrical sliding sleeve 803; the third U-shaped bayonet is in linear sliding connection with the first cylindrical guide rail 16 through a third U-shaped clamping groove 805. In order to ensure the consistency and stability of the optical axis during the movement and not to make the lens volume too large, the ratio of the length of the third cylindrical sliding sleeve 803 to the vertical distance between the axes of the third cylindrical guide 18 and the first cylindrical guide 16 is preferably greater than or equal to 0.5. In this embodiment, the fit clearance between the inner circle of the third cylindrical sliding sleeve 803 and the first cylindrical guide rail 16 is 0.01 mm. The U-shaped third slot 805 is tightly fitted with the third U-shaped bayonet, and is fixed to the aberration stabilizing carriage 802 by two M2 countersunk screws. The width of the U-shaped clamping groove three 805 is matched with that of the third cylindrical guide rail 18, and a gap of 0.5mm is reserved in the radial direction. The U-shaped third slot 805 restricts the rotation of the aberration stabilizing lens assembly 801 around the optical axis, and prevents the aberration stabilizing lens assembly 801 from being locked due to the non-parallel of the two cylindrical guide rails and the machining error of the sliding frame during the movement process. The third cylindrical sliding sleeve 803, the third U-shaped clamping groove 805, the first cylindrical sliding sleeve 403 and the first U-shaped clamping groove 405 are made of the same material and have the same specification. When the device is installed, lubricating grease is coated, so that the sliding friction force is reduced, and the movement fluency is improved.

In order to facilitate the replacement of parts and the assembly, the diameter and the length of the first circular through hole 406, the second circular through hole 506 and the third circular through hole 806 are preferably equal; the sizes of the first U-shaped bayonet, the second U-shaped bayonet and the third U-shaped bayonet are equal; the first cylindrical sliding sleeve 403, the second cylindrical sliding sleeve 503 and the third cylindrical sliding sleeve 803 are the same parts; the sliding sleeve pressing ring I404, the sliding sleeve pressing ring II 504 and the sliding sleeve pressing ring III 804 are the same parts; the first U-shaped slot 405, the second U-shaped slot 505 and the third U-shaped slot 805 are the same parts.

Referring to fig. 8, the iris diaphragm assembly 6 includes an intermediate substrate 601, a diaphragm 606, and a motor 609. The intermediate substrate 601 is fixedly connected to the main barrel 1. In this embodiment, the middle substrate 601 is mounted on the four mounting ears 103 in the middle of the main barrel 1 by 4M 2.5 screws. The outer circle of the middle base plate 601 is matched with the size of a boss in the middle of the main lens barrel 1, and the coaxiality of the middle base plate and the boss is not more than 0.01 mm. A second yielding groove for yielding the cylindrical guide rail and the sliding frame is formed in the middle base plate 601. The aperture 606 and the motor 609 are both installed on the middle substrate 601, and the motor 609 drives the shifting lever 604 on the aperture 606 to rotate, so as to adjust the aperture size of the aperture. In this embodiment, in order to have a compact space and a reliable structure, the iris diaphragm assembly 6 preferably further includes a diaphragm seat 602, a large gear 603, and a small gear 607. The diaphragm seat 602 is coaxially and fixedly mounted on the middle substrate 601, and a third receding groove 6011 matched with the shift lever 604 is formed on the cylindrical surface of the diaphragm seat 602 along the circumferential direction; the bull gear 603 is sleeved on the outer circle of the diaphragm seat 602 and is rotatably connected with the diaphragm seat 602; a clamping groove matched with the shape of the end part of the shifting lever 604 is arranged on the inner cylindrical surface of the big gear 603; the diaphragm 606 is mounted in an inner hole of the diaphragm seat 602 and is mounted on the intermediate substrate 601 through the diaphragm seat 602; the shifting lever 604 on the aperture 606 passes through the third avoiding groove 6011 and then extends into the clamping groove; a pinion gear 607 is arranged on an output shaft of the motor 609; the motor 609 drives the bull gear 603 to rotate through the first pinion 607, which drives the shift lever 604 to rotate, thereby adjusting the aperture of the aperture. In this embodiment, the outer circle of the middle substrate 601 matches with the size of the boss in the middle of the main barrel 1, and the coaxiality of the middle substrate and the boss is not more than 0.01 mm. The aperture seat 602 and the middle base plate 601 are matched through the shaft hole to ensure that the coaxiality is 0.02 mm. The angle of the third relief groove 6011 in the circumferential direction is 100 °, and the groove width is 2.3 mm. The diameter of the outer circle of the diaphragm 606 is 37mm, the thickness of the outer circle of the diaphragm 606 is 5.5mm, the aperture range of the diaphragm 606 is 1-22 mm, the deflector rod 604 rotates 90 degrees, and the aperture of the diaphragm can be opened from the minimum to the maximum. In order to detect the rotation angle of the bull gear 603 in real time and accurately control the aperture size according to the corresponding relationship between the aperture size and the rotation angle of the bull gear 603, the iris diaphragm assembly 6 of the present embodiment preferably further includes a potentiometer 6010 and a second pinion 608. The potentiometer 6010 is mounted on the intermediate substrate 601; the second pinion 608 is fixed to the potentiometer 6010 shaft, and the second pinion 608 meshes with the bull gear 603.

Referring to fig. 8, the intermediate fixing group 7 is coaxially and fixedly mounted on the intermediate substrate 601. In this embodiment, the middle fixing group 7 is matched with the inner circle of the middle substrate 601 and screwed on the middle substrate 601 through 4M 2.5 screws. The intermediate fixed group 7 includes an intermediate fixed barrel 701 and an intermediate fixed mirror group 702. The middle fixing lens group 702 is coaxially and fixedly installed in the inner circle of the middle fixing lens barrel 701. In order to ensure the coaxiality, the present embodiment preferably ensures the coaxiality of the inner circle and the outer circle of the intermediate fixed lens barrel 701 by the secondary finish turning of the intermediate fixed lens barrel 701, and simultaneously ensures the fitting accuracy of the intermediate fixed lens barrel 701 and the intermediate base plate 601. The middle fixing lens group 702 is coaxially and fixedly installed in the inner circle of the middle fixing lens barrel 701 through a centering process, and the matching gap is 0.008 mm.

Referring to fig. 1, the focusing driving assembly 13 is configured to drive the focusing cam 12 to rotate, so as to drive the focusing lens assembly 203 to move in the front-back direction, thereby implementing the lens focusing and focusing functions. The present embodiment preferably has the focus drive group 13 mounted outside the main barrel 1, and drives the focus cam 12 to rotate through gear transmission.

Referring to fig. 1, the zoom driving group 11 is configured to drive the zoom cam 10 to rotate, so as to drive the zoom group 4, the compensation group 5, and the aberration stabilizing group 8 to move in a front-back direction, thereby implementing a focal length change. In the embodiment, the zoom cam 10 is preferably installed on the outer circle of the middle part of the main lens barrel 1 through a precision ball shaft system, and the balls are lubricated by lubricating grease, so that the zoom cam 10 can smoothly rotate. The zooming driving group 11 is arranged outside the main lens barrel 1 and drives the zooming cam 10 to rotate through gear transmission.

In order to facilitate the lens to be mounted on the cabin, referring to fig. 1, a mounting bracket 14 is further mounted on the outer side of the main barrel 1 of the present embodiment. In the present embodiment, the mounting bracket 14 is mounted on the main barrel 1 by four M3 pan head screws.

In order to facilitate connection with a detector, a detector interface 15 is further installed behind the main lens barrel 1 of the present embodiment, and the detector interface 15 is fixedly connected with the rear fixing group 9.

The variable-coil zoom lens can realize ultra-high-definition video recording in the full-sea-depth environment.

Claims (4)

1. The utility model provides a clear electronic change circle zoom of full sea depth superelevation which characterized in that:

the zoom lens comprises a main lens cone (1), a first front group (2) coaxially installed in front of the main lens cone (1), a focusing cam (12) sleeved on the excircle of the first front group (2), a zoom cam (10) sleeved on the excircle of the main lens cone (1), a second front group (3), a zoom group (4), a compensation group (5), a diaphragm-variable assembly (6), a middle fixing group (7), an aberration stabilizing group (8) and a rear fixing group (9) which are sequentially and coaxially arranged in the main lens cone (1) from front to rear, and further comprises a focusing driving group (13) and a zoom driving group (11);

a plurality of guide rails parallel to the axis direction of the main lens barrel (1) are fixedly arranged in the main lens barrel;

the first front group (2) comprises a first front lens barrel (201), a first front lens group (202) and a focusing lens group (203), wherein the first front lens group and the focusing lens group are coaxially arranged in the first front lens barrel (201) from front to back in sequence; the first front lens group (202) is fixedly connected with the main lens cone (1) through a first front lens cone (201); a first guide nail (206) is fixedly arranged on the focusing mirror group (203) along the radial direction; a first straight line groove (205) which is matched with a first guide nail (206) and is arranged along the front-back direction is formed in the first front lens barrel (201); the first guide nail (206) penetrates through the first linear groove (205) and then is inserted into a focusing cam curve groove arranged on the focusing cam (12); the focusing cam (12) is rotationally connected with the first front lens barrel (201);

the second front group (3) and the rear fixing group (9) are fixedly connected with the main lens cone (1);

the zooming group (4), the compensation group (5) and the aberration stabilizing group (8) are respectively in linear sliding connection with at least two guide rails of the guide rails, and a second guide nail (408), a third guide nail (507) and a fourth guide nail (807) are respectively and fixedly arranged on the zooming group, the compensation group and the aberration stabilizing group in a radial direction in a one-to-one correspondence manner; the main lens barrel (1) is provided with a second linear groove, a third linear groove and a fourth linear groove which are correspondingly matched with the second guide nail (408), the third guide nail (507) and the fourth guide nail (807) one by one and respectively along the front and back direction; the second guide pin (408) penetrates through the second linear groove and then is inserted into a first zooming cam curve groove (1001) arranged on the zooming cam (10); the third guide nail (507) penetrates through the third linear groove and then is inserted into a second zooming cam curved groove (1002) arranged on the zooming cam (10); the fourth guide nail (807) penetrates through the fourth linear groove and then is inserted into a zoom cam curved groove III (1003) arranged on the zoom cam (10);

the iris diaphragm assembly (6) comprises an intermediate substrate (601), a diaphragm (606) and a motor (609); the middle substrate (601) is fixedly connected with the main lens barrel (1); the aperture (606) and the motor (609) are both arranged on the middle substrate (601), and the motor (609) drives a shifting lever (604) on the aperture (606) to rotate so as to adjust the aperture size of the aperture;

the middle fixing group (7) is coaxially and fixedly arranged on the middle substrate (601);

the focusing driving group (13) is used for driving the focusing cam (12) to rotate so as to drive the focusing mirror group (203) to move along the front-back direction, and the focusing and focusing functions of the lens are realized;

the zooming driving group (11) is used for driving the zooming cam (10) to rotate so as to drive the zooming group (4), the compensation group (5) and the aberration stabilizing group (8) to move in a correlation manner along the front and back directions, so that the focal length is changed;

the iris diaphragm assembly (6) further comprises an iris diaphragm seat (602), a bull gear (603) and a pinion gear I (607);

the diaphragm seat (602) is coaxially and fixedly arranged on the middle substrate (601), and a third abdicating groove (6011) matched with the deflector rod (604) is formed in the cylindrical surface of the diaphragm seat (602) along the circumferential direction;

the bull gear (603) is sleeved on the outer circle of the aperture seat (602) and is rotationally connected with the aperture seat (602); a clamping groove matched with the shape of the end part of the shifting lever (604) is arranged on the inner cylindrical surface of the large gear (603);

the diaphragm (606) is arranged in an inner hole of a diaphragm seat (602) and is arranged on the middle substrate (601) through the diaphragm seat (602); the shifting rod (604) on the diaphragm (606) penetrates through the third avoiding groove (6011) and then extends into the clamping groove;

the first pinion (607) is arranged on an output shaft of the motor (609); the motor (609) drives the large gear (603) to rotate through the first small gear (607), so as to drive the shifting lever (604) to rotate, and further adjust the aperture size of the aperture;

the iris diaphragm assembly (6) further comprises a potentiometer (6010) and a second pinion (608);

the potentiometer (6010) is mounted on the intermediate substrate (601);

the second pinion (608) is fixed on the shaft of the potentiometer (6010), and the second pinion (608) is meshed with the large gear (603);

the aperture range of the aperture (606) is 1-22 mm;

the number of the guide rails is four, and the axes of the four guide rails are uniformly distributed on the same cylindrical surface taking the axis of the main lens cone (1) as an axis; the four guide rails are all cylindrical;

defining: the four guide rails are respectively a first cylindrical guide rail (16), a second cylindrical guide rail (17), a third cylindrical guide rail (18) and a fourth cylindrical guide rail (19) in sequence in the clockwise direction;

the zooming group (4) comprises a zooming lens group (401) and a zooming carriage (402); the zoom lens group (401) is coaxially and fixedly arranged in the inner circle of the zoom sliding frame (402); one side of the zooming carriage (402) in the radial direction is provided with a first cylindrical boss which is parallel to the axis of the zooming carriage (402) and protrudes backwards, and the first cylindrical boss is provided with a coaxial first circular through hole (406); a first U-shaped bayonet is arranged on the other side of the zooming carriage (402) in the radial direction, and a U-shaped opening of the first U-shaped bayonet points to the outer side in the radial direction; the zooming group (4) is in linear sliding connection with the first cylindrical guide rail (16) through the first round through hole (406), and the first U-shaped bayonet is in linear sliding connection with the third cylindrical guide rail (18) and coaxially arranged in the main lens cone (1);

the compensation group (5) comprises a compensation lens group (501) and a compensation sliding frame (502); the compensation lens group (501) is coaxially and fixedly arranged in the inner circle of the compensation sliding frame (502); one side of the compensation sliding frame (502) in the radial direction is provided with a second cylindrical boss which is parallel to the axis of the compensation sliding frame (502) and protrudes forwards, and the second cylindrical boss is provided with a coaxial second round through hole (506); a second U-shaped bayonet is arranged on the other side of the compensation sliding frame (502) in the radial direction, and a U-shaped opening of the second U-shaped bayonet points to the outer side in the radial direction; the compensation group (5) is in linear sliding connection with the second cylindrical guide rail (17) through the second circular through hole (506), and the second U-shaped bayonet is in linear sliding connection with the fourth cylindrical guide rail (19) and coaxially arranged in the main lens cone (1);

the aberration stabilizing group (8) comprises an aberration stabilizing mirror group (801) and an aberration stabilizing sledge (802); the aberration stabilizing lens group (801) is coaxially and fixedly arranged in the inner circle of the aberration stabilizing sliding frame (802); one side of the aberration stabilizing sliding frame (802) in the radial direction is provided with a third cylindrical boss which has an axis parallel to that of the aberration stabilizing sliding frame (802) and protrudes to the front side and the rear side, and the third cylindrical boss is provided with a coaxial third round through hole (806); a third U-shaped bayonet is arranged on the other side of the aberration stabilizing sliding frame (802) in the radial direction, and a U-shaped opening of the third U-shaped bayonet points to the outer side in the radial direction; the aberration stabilizing group (8) is in linear sliding connection with a third cylindrical guide rail (18) through a third circular through hole (806), and a third U-shaped bayonet is in linear sliding connection with a first cylindrical guide rail (16) and coaxially arranged in the main lens cone (1);

the zooming group (4) further comprises a first cylindrical sliding sleeve (403), two sliding sleeve pressing rings I (404) and a U-shaped clamping groove I (405); the first cylindrical sliding sleeve (403) is arranged in the first circular through hole (406) and is compressed in the first circular through hole (406) through the two sliding sleeve pressing rings (404) respectively arranged at the two ends of the first cylindrical sliding sleeve; the shape of the U-shaped clamping groove I (405) is as follows: outward flanges are arranged on the end face of one end of the first hollow U-shaped structure along two sides of the symmetrical axis of the U shape; the first U-shaped clamping groove (405) is clamped in the first U-shaped clamping opening and fixedly connected with the zooming sliding frame (402); the first round through hole (406) is in linear sliding connection with the first cylindrical guide rail (16) through the first cylindrical sliding sleeve (403); the first U-shaped bayonet is in linear sliding connection with a third cylindrical guide rail (18) through a first U-shaped clamping groove (405); the ratio of the length of the first cylindrical sliding sleeve (403) to the vertical distance between the axes of the first cylindrical guide rail (16) and the third cylindrical guide rail (18) is more than or equal to 0.5;

the compensation group (5) further comprises a second cylindrical sliding sleeve (503), two sliding sleeve pressing rings II (504) and a U-shaped clamping groove II (505); the second cylindrical sliding sleeve (503) is arranged in the second round through hole (506) and is compressed in the second round through hole (506) through the two sliding sleeve pressing rings (504) respectively arranged at the two ends of the second cylindrical sliding sleeve; the shape of the U-shaped clamping groove II (505) is as follows: outward flanges are arranged on the end face of one end of the second hollow U-shaped structure along two sides of the symmetrical axis of the U shape; the U-shaped clamping groove II (505) is clamped in the second U-shaped clamping opening and fixedly connected with the compensation sliding frame (502); the second round through hole (506) is in linear sliding connection with the second cylindrical guide rail (17) through a second cylindrical sliding sleeve (503); the second U-shaped bayonet is in linear sliding connection with a fourth cylindrical guide rail (19) through a second U-shaped clamping groove (505); the ratio of the length of the second cylindrical sliding sleeve (503) to the vertical distance between the axes of the second cylindrical guide rail (17) and the fourth cylindrical guide rail (19) is more than or equal to 0.5;

the aberration stabilizing group (8) further comprises a third cylindrical sliding sleeve (803), two sliding sleeve pressing rings III (804) and a U-shaped clamping groove III (805); the third cylindrical sliding sleeve (803) is arranged in a third round through hole (806) and is tightly pressed in the third round through hole (806) through the two sliding sleeve pressing rings (804) respectively arranged at the two ends of the third cylindrical sliding sleeve; the shape of the U-shaped clamping groove III (805) is as follows: outward flanges are arranged on the end face of one end of the third hollow U-shaped structure along two sides of the symmetry axis of the U shape; the U-shaped clamping groove III (805) is clamped in the third U-shaped clamping groove and fixedly connected with the aberration stabilizing sliding frame (802); the third round through hole (806) is in linear sliding connection with the third cylindrical guide rail (18) through a third cylindrical sliding sleeve (803); the third U-shaped bayonet is in linear sliding connection with the first cylindrical guide rail (16) through a third U-shaped clamping groove (805); the ratio of the length of the third cylindrical sliding sleeve (803) to the vertical distance between the axes of the third cylindrical guide rail (18) and the first cylindrical guide rail (16) is more than or equal to 0.5;

the diameters and the lengths of the first round through hole (406), the second round through hole (506) and the third round through hole (806) are correspondingly equal; the first U-shaped bayonet, the second U-shaped bayonet and the third U-shaped bayonet are equal in size;

the first cylindrical sliding sleeve (403), the second cylindrical sliding sleeve (503) and the third cylindrical sliding sleeve (803) are the same parts; the sliding sleeve pressing ring I (404), the sliding sleeve pressing ring II (504) and the sliding sleeve pressing ring III (804) are the same parts; the U-shaped clamping groove I (405), the U-shaped clamping groove II (505) and the U-shaped clamping groove III (805) are the same parts.

2. The full-sea-depth ultra-high-definition motorized zoom lens according to claim 1, wherein:

the lens barrel assembly is characterized in that the lens barrel assembly is mounted between a first front lens barrel (201) and a main lens barrel (1), between lenses in a first front lens group (202), between lenses in a focusing lens group (203), between a second front lens barrel (301) and the main lens barrel (1), between a second front lens group (302) and the second front lens barrel (301), between a zooming lens group (401) and a zooming carriage (402), between a compensating lens group (501) and a compensating carriage (502), between an intermediate substrate (601) and the main lens barrel (1), between an intermediate fixed lens barrel (701) and an intermediate substrate (601), between an intermediate fixed lens barrel (702) and an intermediate fixed lens barrel (701), between an aberration stabilizing lens group (801) and an aberration stabilizing carriage (802), between a rear fixed lens barrel (901) and the main lens barrel (1), and between a rear fixed lens group (902) and a rear fixed lens barrel (901) through a process.

3. The full-sea-depth ultra-high definition motorized zoom lens according to claim 1 or 2, wherein:

the focusing driving group (13) and the zooming driving group (11) are both arranged on the outer side of the main lens barrel (1) and respectively and correspondingly drive the focusing cam (12) and the zooming cam (10) to rotate through gear transmission.

4. The full-sea-depth ultra-high-definition motorized zoom lens according to claim 3, wherein:

the device also comprises a mounting bracket (14) and a detector interface (15);

the mounting bracket (14) is fixedly mounted on the outer side of the main lens barrel (1) and is used for connecting the lens with an external cabin body;

the detector interface (15) is positioned behind the main lens cone (1), is fixedly connected with the rear fixing group (9) and is used for connecting an imaging detector assembly.

Images