CN218675450U - Zoom lens and observation apparatus - Google Patents
Zoom lens and observation apparatus Download PDFInfo
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- CN218675450U CN218675450U CN202223059209.4U CN202223059209U CN218675450U CN 218675450 U CN218675450 U CN 218675450U CN 202223059209 U CN202223059209 U CN 202223059209U CN 218675450 U CN218675450 U CN 218675450U
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Abstract
The utility model discloses a zoom lens and observation equipment, the zoom lens comprises a fixed seat and a movable group component, the fixed seat comprises a fixed sleeve and a guide post arranged on the fixed sleeve, the guide post extends along the axial direction of the fixed sleeve; the movable group assembly is arranged in the fixed sleeve and comprises a focusing group and a focusing group which are arranged in the axial direction of the fixed sleeve at intervals, the focusing group and the focusing group are provided with through holes for the guide posts to penetrate through, and the focusing group are slidably sleeved outside the guide posts so that the focusing group and the focusing group can be relatively close to and far away from each other. Through the mode that through-hole and guide post cooperation slip, replace traditional picture frame and the inside and outside footpath cooperation of lens cone, set the smooth finish on guide post surface higher, frictional force is little during the slip, actuates more smoothly, and focus crowd and focusing crowd radially can not have the displacement to solve current zoom focusing accuracy not high, bulky, focusing in-process picture shake, and the big problem of center skew.
Description
Technical Field
The utility model relates to a camera lens technical field especially relates to zoom and observation equipment.
Background
The focusing structure design of the lens is various, and the common structures comprise a thread, a straight groove barrel, a CAM barrel, a straight groove barrel, a lead screw motor, a guide shaft and the like.
The thread + straight grooved drum is a common focusing structure, and the structure is simple, low in cost, easy to machine and the like, but the structure is applicable to shorter focusing stroke, is not suitable for zooming and focusing of large stroke, and needs management and control thread fit during feeding, and the problem that threads of different batches are not matched easily occurs. The CAM cylinder and the straight groove cylinder have the advantages of low cost, simple assembly and the like, but the coaxiality between the movable groups of the scheme is poor, the main reason is that the mirror frame is matched with the inner diameter and the outer diameter of the straight groove cylinder and is in clearance fit, the coaxiality of the focusing group and the zooming group is poor due to the limitation of the processing technology, the structure cannot meet the requirement of high optical axis stability, a picture is easy to shake during focusing, and the central pixel is large in offset. The lead screw and guide shaft structure has the advantages of accurate and flexible focusing, small return stroke and the like, but the metal structure is difficult to process, and the structure has enough space for placing the lead screw and the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a zoom, aim at solving current zoom focusing accuracy not high, bulky, focusing in-process picture shake, and the big problem of central skew.
To achieve the above object, the present invention provides a zoom lens, wherein the zoom lens includes:
the fixing seat comprises a fixing sleeve and a guide post arranged on the fixing sleeve, and the guide post extends along the axial direction of the fixing sleeve;
the movable group assembly is arranged in the fixed sleeve and comprises a focusing group and a focusing group which are arranged in the axial direction of the fixed sleeve at intervals, through holes for the guide columns to penetrate through are formed in the focusing group and the focusing group, and the focusing group are slidably sleeved outside the guide columns so that the focusing group and the focusing group can be relatively close to and far away from each other.
Optionally, the focus group comprises:
the first annular seat is provided with the through hole in a penetrating manner;
the focusing lens group is arranged on the inner peripheral wall of the first annular seat; and the number of the first and second groups,
the first wear-resistant sleeve is sleeved in the through hole on the focusing group and sleeved on the outer peripheral side of the guide column;
the focus group includes:
the second annular seat is provided with the through hole in a penetrating manner;
the focusing lens group is arranged on the inner peripheral wall of the second annular seat; and the number of the first and second groups,
and the second wear-resistant sleeve is sleeved in the through hole on the focusing group and sleeved on the peripheral side of the guide post.
Optionally, the guide post is in interference fit with the first wear-resistant sleeve and the second wear-resistant sleeve.
Optionally, two guide posts are arranged, and the two guide posts are arranged at intervals in the radial direction of the fixed sleeve;
the first annular seat and the second annular seat are both provided with two through holes in a penetrating manner, and the two through holes are distributed at intervals in the radial direction of the fixed seat and are positioned at two sides of the corresponding focusing lens group or the focusing lens group;
one of the guide columns sequentially penetrates through the corresponding through holes in the first annular seat and the second annular seat, the outer peripheral sides of the guide columns are sleeved with the first wear-resistant sleeve and the second wear-resistant sleeve, and the other guide column sequentially penetrates through the corresponding through holes in the first annular seat and the second annular seat.
Optionally, the peripheral wall of the fixed sleeve is provided with two guide holes extending along the axial direction of the fixed sleeve, and the two guide holes are arranged at intervals in the axial direction of the fixed sleeve;
convex parts are arranged on the peripheral sides of the focusing group and the focusing group, and the convex parts penetrate out of the corresponding guide holes.
Optionally, the peripheral walls of the focusing group and the focusing group are both provided with mounting holes;
the zoom lens further comprises two guide nails, one end of each guide nail is inserted into the corresponding mounting hole, and the other end of each guide nail forms the convex part.
Optionally, the zoom lens further includes two lens barrels sleeved on the periphery of the fixed sleeve, the two lens barrels are arranged at intervals in the axial direction of the fixed sleeve, and both the two lens barrels are rotatably arranged relative to the fixed sleeve;
the peripheral wall of each lens cone is provided with a driving groove corresponding to the convex part in a penetrating manner, the driving groove is spirally arranged along the axial direction of the lens cone, and when each lens cone rotates relative to the fixed sleeve, each convex part can move along the corresponding driving groove to drive the focusing group or the focusing group to move along the guide hole, so that the focusing group and the focusing group can be relatively close to and far away from each other.
Optionally, a tooth part is arranged on the peripheral wall of each lens barrel along the circumferential direction;
the zoom lens further comprises two driving motors fixedly connected with the fixed sleeve, each driving motor is provided with an output rotating shaft extending along the axial direction of the fixed sleeve, a driving gear is arranged at the end of each output rotating shaft, the driving gears are in meshed transmission with the corresponding tooth parts, and the output rotating shafts drive the driving gears to rotate so as to drive the tooth parts to drive the corresponding lens cones to rotate.
Optionally, the zoom lens further includes a controller, a first displacement sensor and a second displacement sensor, the first displacement sensor is configured to detect a first displacement signal of the focus group, the second displacement sensor is configured to detect a second displacement signal of the focus group, and the controller is electrically connected to the first displacement sensor, the second displacement sensor and the two driving motors, so as to drive the corresponding focus group to move according to the first displacement signal and drive the corresponding focus group to move according to the second displacement signal.
The utility model also provides an observation equipment, observation equipment include zoom, zoom includes:
the fixing seat comprises a fixing sleeve and a guide post arranged on the fixing sleeve, and the guide post extends along the axial direction of the fixing sleeve;
the movable group assembly is arranged in the fixed sleeve and comprises a focusing group and a focusing group which are arranged in the axial direction of the fixed sleeve at intervals, through holes for the guide columns to penetrate through are formed in the focusing group and the focusing group, and the focusing group are slidably sleeved outside the guide columns so that the focusing group and the focusing group can be relatively close to and far away from each other.
The utility model provides an among the technical scheme, focus crowd and focusing crowd all are provided with the through-hole, the through-hole supplies the guide post to wear to establish, and focus crowd with focusing crowd slidable ground cover is located outside the guide post, need adjust focus crowd with during the relative distance between the focusing crowd, it is adjustable focus crowd with the focusing crowd is followed the extending direction of guide post slides, through-hole and the gliding mode of guide post cooperation, replaces traditional picture frame and the cooperation of the interior external diameter of lens cone, will the smooth finish on guide post surface sets up highly, and frictional force is little during the slip, actuates more smoothly, focus crowd with focusing crowd can not radially have the displacement to solve current zoom accurate not high, bulky, focusing in-process picture shake, and the big problem of center skew.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment of a zoom lens provided by the present invention;
FIG. 2 is a perspective view of the zoom lens shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the zoom lens of FIG. 1;
fig. 4 is a partial structural schematic diagram of the zoom lens in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
221 | Second annular seat |
| 1 | Fixed seat | 222 | Focusing |
| 11 | Fixing sleeve | 223 | Second wear-resistant sleeve |
| 12 | |
23 | Convex |
| 11a | Guide hole | 3 | |
| 2 | |
4 | |
| 21 | Focusing |
4a | |
| 211 | First |
41 | Toothed |
| 212 | Focusing |
5 | |
| 213 | First wear- |
6 | Driving gear |
| 22 | Focusing group |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The focusing structure design of the lens is various, and the common structures comprise a thread, a straight groove barrel, a CAM barrel, a straight groove barrel, a lead screw motor, a guide shaft and the like. The thread + straight grooved drum is a common focusing structure, and the structure is simple, low in cost, easy to machine and the like, but the structure is applicable to shorter focusing stroke, is not suitable for zooming and focusing of large stroke, and needs management and control thread fit during feeding, and the problem that threads of different batches are not matched easily occurs. The CAM cylinder and the straight groove cylinder have the advantages of low cost, simple assembly and the like, but the coaxiality between the movable groups of the scheme is poor, the main reason is that the mirror frame is matched with the inner diameter and the outer diameter of the straight groove cylinder and is in clearance fit, the coaxiality of the focusing group and the zooming group is poor due to the limitation of a processing technology, the structure cannot meet the requirement of high optical axis stability, the picture is easy to shake during focusing, and the central pixel is large in offset. The lead screw and guide shaft structure has the advantages of accurate and flexible focusing, small return stroke and the like, but the metal structure is difficult to process, and the structure has enough space for placing the lead screw and the motor.
In order to solve the above problem, the present invention provides a zoom lens 100, and fig. 1 to 4 illustrate a specific embodiment of the zoom lens 100.
Referring to fig. 3 to 4, the zoom lens 100 includes a fixing base 1 and a moving group assembly 2, where the fixing base 1 includes a fixing sleeve 11 and a guiding post 12 disposed on the fixing sleeve 11, and the guiding post 12 extends along an axial direction of the fixing sleeve 11; the moving group assembly 2 is arranged in the fixing sleeve 11 and comprises a focusing group 21 and a focusing group 22 which are arranged in the axial direction of the fixing sleeve 11 at intervals, through holes for the guide posts 12 to penetrate through are formed in the focusing group 21 and the focusing group 22, and the focusing group 21 and the focusing group 22 are slidably sleeved outside the guide posts 12, so that the focusing group 21 and the focusing group 22 can be relatively close to and far away from each other.
The utility model provides an among the technical scheme, focus crowd 21 and focus crowd 22 all are provided with the through-hole, the through-hole supplies guide post 12 to wear to establish, and focus crowd 21 with focus crowd 22 slidable ground cover is located outside guide post 12, need adjust focus crowd 21 with during the relative distance between the focus crowd 22, it is adjustable focus crowd 21 with focus crowd 22 is followed the extending direction of guide post 12 slides, through the gliding mode of through-hole and guide post 12 cooperation, replaces traditional picture frame and lens cone 4's inside and outside footpath cooperation, will the smooth finish on guide post 12 surface sets up to be higher, and frictional force is little during the slip, actuates more smoothly, focus crowd 21 with focus crowd 22 radially can not have the displacement to solve current zoom 100 focusing accuracy not high, bulky, focusing in-process picture shake, and the big problem of central skew.
Specifically, in this embodiment, the focusing group 21 includes a first annular seat 211, a focusing lens group 212 and a first wear-resistant sleeve 213, the first annular seat 211 is provided with a through hole, and the focusing lens group 212 is disposed on the inner peripheral wall of the first annular seat 211; the first wear-resistant sleeve 213 is sleeved in the through hole of the focusing group 21 and is sleeved on the outer peripheral side of the guide post 12; thus, the first annular seat 211 is machined or injection molded, the focusing lens group 212 is mounted on the first annular seat 211, and the first annular seat 211 slides along the guide post 12, so as to drive the focusing lens group 212 to move.
In this embodiment, specifically, also, the focusing group 22 includes a second annular seat 221, a focusing mirror set 222 and a second wear-resistant sleeve 223, the second annular seat 221 has a through hole therethrough, and the focusing mirror set 222 is disposed on an inner peripheral wall of the second annular seat 221; the second wear-resistant sleeve 223 is sleeved in the through hole of the focusing group 21 and is sleeved on the outer peripheral side of the guide column 12; thus, the second annular seat 221 is machined or injection molded, the focusing mirror set 222 is mounted on the second annular seat 221, and the second annular seat 221 slides along the guide post 12, so as to drive the focusing mirror set 222 to move.
Specifically, in order to further ensure that the focus group 21 and the focus group 22 are within the range allowed by the radial play, in this embodiment, the guide post 12 is in an interference fit with the first wear-resistant sleeve 213 and the second wear-resistant sleeve 223. It can be understood that the first wear-resistant sleeve 213 and the second wear-resistant sleeve 223 are made of a material with a slight amount of elasticity, the elastic space of the first wear-resistant sleeve 213 and the second wear-resistant sleeve 223 enables the focusing group 21 and the focusing group 22 to be assembled with the guide post 12, and the guide post 12 and the first wear-resistant sleeve 213 and the second wear-resistant sleeve 223 are in interference fit, so that there is no gap between the guide post 12 and the first wear-resistant sleeve 213 and the second wear-resistant sleeve 223, and the focusing group 21 and the focusing group 22 cannot shake in the radial direction of the guide post 12, thereby enabling the focusing accuracy of the zoom lens 100 to be higher.
Further, in order to enable the focus group 21 and the focus group 22 to move stably, in the present embodiment, two guide posts 12 are provided, and the two guide posts 12 are spaced apart from each other in the radial direction of the fixing sleeve 11; correspondingly, two through holes are respectively arranged on the first annular seat 211 and the second annular seat 221 in a penetrating manner, and the two through holes are arranged at intervals in the radial direction of the fixed seat 1 and are located at two sides of the corresponding focusing mirror group 212 or the corresponding focusing mirror group 222; one of the guide posts 12 sequentially penetrates through a corresponding through hole on the first annular seat 211 and the second annular seat 221, the first wear-resistant sleeve 213 and the second wear-resistant sleeve 223 are sleeved on the outer peripheral side of the guide post 12, and the other guide post 12 sequentially penetrates through a corresponding through hole on the first annular seat 211 and the second annular seat 221. In this way, the distance between the two guide posts 12 can be determined, and the focus group 21 and the focus group 22 are prevented from rotating around the guide posts 12 and affecting the focus accuracy.
Specifically, referring to fig. 4, in this embodiment, two guide holes 11a extending in the axial direction of the fixing sleeve 11 are formed in the peripheral wall of the fixing sleeve 11, the two guide holes 11a are arranged at intervals in the axial direction of the fixing sleeve 11, convex portions 23 are convexly arranged on the peripheral sides of the focusing group 21 and the focusing group 22, and each convex portion 23 protrudes out from the corresponding guide hole 11 a. The convex part 23 is provided, so that an external driving mechanism or a user can conveniently operate and push the convex part 23, and the focusing group 21 and the focusing group 22 are driven to move to adjust the focal length.
Specifically, the protruding portion 23 may be an injection molded part or a machined part integrally formed with the first annular seat 211 or the second annular seat 221, but for convenience of demolding and assembling, in the present embodiment, the peripheral walls of the focus group 21 and the focus group 22 are both provided with mounting holes; the zoom lens 100 further includes two guide pins 3, one end of each guide pin 3 is inserted into the corresponding mounting hole, and the other end forms the convex portion 23. Therefore, after the focusing group 21 and the focusing group 22 are inserted into the guide posts 12, the mounting holes may be provided corresponding to the guide holes 11a, and then each of the guide pins 3 may be engaged with the corresponding mounting hole in place, where the mounting hole may be a threaded hole or a general through hole, and the guide pins 3 may be screwed into the mounting holes or may be in interference fit.
Further, in order to make the zoom lens 100 conform to the operation habit of the user and facilitate the operation when adjusting the zoom lens 100, please refer to fig. 1, in this embodiment, the zoom lens 100 further includes two lens barrels 4 sleeved on the periphery of the fixing sleeve 11, the two lens barrels 4 are arranged at intervals in the axial direction of the fixing sleeve 11, the two lens barrels 4 are both rotatably arranged relative to the fixing sleeve 11, a driving groove 4a arranged corresponding to the protrusion 23 is penetratingly arranged on the peripheral wall of each lens barrel 4, the driving groove 4a is spirally arranged along the axial direction of the lens barrel 4, when each lens barrel 4 rotates relative to the fixing sleeve 11, each protrusion 23 can move along the corresponding driving groove 4a to drive the focusing group 21 or the focusing group 22 to move along the guiding hole 11a, so that the focusing group 21 and the focusing group 22 can relatively approach and move away from each other. With this arrangement, when the user rotates the external lens barrel 4, the sidewall of the driving groove 4a abuts against the peripheral wall of the protrusion 23, so that the protrusion 23 moves along the guiding hole 11a, and the focusing group 21 and the focusing group 22 are driven to move along the axial direction of the fixing sleeve 11. The curvature and the span in the axial direction of the curve designed by the driving groove 4a are set as required, and the gentler the driving groove 4a is, the higher the focusing accuracy of the zooming accuracy is. It can be understood that the driving grooves 4a are made gentle by adjusting the angle thereof to improve the focusing accuracy.
Further, referring to fig. 1 and fig. 2, in another embodiment, a tooth portion 41 is disposed on an outer circumferential wall of each lens barrel 4 along a circumferential direction thereof, the zoom lens 100 further includes two driving motors 5 fixedly connected to the fixed sleeve 11, each driving motor 5 has an output rotating shaft extending along an axial direction of the fixed sleeve 11, a driving gear 6 is disposed at an end of the output rotating shaft, the driving gear 6 is in meshing transmission with the corresponding tooth portion 41, and the output rotating shaft drives the driving gear 6 to rotate so as to drive the tooth portion 41 to drive the corresponding lens barrel 4 to rotate. With such an arrangement, the driving motor 5 works to enable the meshing transmission mechanism between the output rotating shaft and the lens barrel 4 to realize the electric driving movement of the lens barrel 4, so as to realize the electric focusing function of the zoom lens 100.
Further, in order to enable the driving precision of the two driving motors 5 to be sufficiently accurate, in this embodiment, the zoom lens 100 further includes a controller, a first displacement sensor and a second displacement sensor, the first displacement sensor is configured to detect a first displacement signal of the focus group 21, the second displacement sensor is configured to detect a second displacement signal of the focus group 22, and the controller is electrically connected to the first displacement sensor, the second displacement sensor and the two driving motors 5, so as to drive the corresponding focus group 21 to perform a displacement motion according to the first displacement signal, and drive the corresponding focus group 22 to perform a displacement motion according to the second displacement signal. Because the sensors of different types have different precisions, have millimeter level, micron level and even nanometer level, the appropriate sensor can be selected according to the actual requirement, thereby realizing accurate adjustment drive. The utility model discloses a focusing moment of torsion is little to can use the moment of torsion little, small driving motor 5 (motor), realize the electronic focusing structure of little volume.
Furthermore, in order to achieve the above object, the present invention further provides an observation device, which is not limited herein, the observation device includes the zoom lens 100 according to the above technical solution. It should be noted that, for the detailed structure of the zoom lens 100 of the observation apparatus, reference may be made to the above-mentioned embodiment of the zoom lens 100, and details are not repeated here; because the utility model discloses an above-mentioned zoom 100 has been used among the observation equipment, consequently, the utility model discloses observation equipment's embodiment includes the whole technical scheme of the whole embodiments of above-mentioned zoom 100, and the technological effect that reaches is also identical, no longer gives unnecessary details here.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A zoom lens, comprising:
the fixing seat comprises a fixing sleeve and a guide post arranged in the fixing sleeve, and the guide post extends along the axial direction of the fixing sleeve; and the number of the first and second groups,
the movable group assembly is arranged in the fixed sleeve and comprises a focusing group and a focusing group which are arranged in the axial direction of the fixed sleeve at intervals, through holes for the guide columns to penetrate through are formed in the focusing group and the focusing group, and the focusing group are slidably sleeved outside the guide columns so that the focusing group and the focusing group can be relatively close to and far away from each other.
2. The zoom lens of claim 1, wherein the focus group comprises:
the first annular seat is provided with the through hole in a penetrating manner;
the focusing lens group is arranged on the inner peripheral wall of the first annular seat; and (c) a second step of,
the first wear-resistant sleeve is sleeved in the through hole on the focusing group and sleeved on the outer peripheral side of the guide column;
the focus group includes:
the second annular seat is provided with the through hole in a penetrating manner;
the focusing lens group is arranged on the inner peripheral wall of the second annular seat; and (c) a second step of,
and the second wear-resistant sleeve is sleeved in the through hole on the focusing group and sleeved on the peripheral side of the guide post.
3. The zoom lens of claim 2, wherein the guide post is an interference fit with the first wear sleeve and the second wear sleeve.
4. The zoom lens according to claim 2, wherein there are two of the guide posts, and the two guide posts are provided at intervals in a radial direction of the fixed sleeve;
the first annular seat and the second annular seat are both provided with two through holes in a penetrating manner, and the two through holes are arranged at intervals in the radial direction of the fixed seat and are positioned at two sides of the corresponding focusing lens group or the focusing lens group;
one of the guide columns sequentially penetrates through the corresponding through holes in the first annular seat and the second annular seat, the outer peripheral sides of the guide columns are sleeved with the first wear-resistant sleeve and the second wear-resistant sleeve, and the other guide column sequentially penetrates through the corresponding through holes in the first annular seat and the second annular seat.
5. The zoom lens according to claim 1, wherein the peripheral wall of the fixed sleeve is provided with two guide holes extending in the axial direction of the fixed sleeve, the two guide holes being provided at intervals in the axial direction of the fixed sleeve;
convex parts are arranged on the periphery of the focusing group and the focusing group, and each convex part penetrates out of the corresponding guide hole.
6. The zoom lens of claim 5, wherein the peripheral walls of the focusing group and the focusing group are provided with mounting holes;
the zoom lens further comprises two guide nails, one end of each guide nail is inserted into the corresponding mounting hole, and the other end of each guide nail forms the convex part.
7. The zoom lens according to claim 5, further comprising two lens barrels sleeved on the periphery of the fixing sleeve, wherein the two lens barrels are arranged at intervals in the axial direction of the fixing sleeve, and both the two lens barrels are rotatably arranged relative to the fixing sleeve;
the peripheral wall of each lens cone is provided with a driving groove corresponding to the convex part in a penetrating manner, the driving groove is spirally arranged along the axial direction of the lens cone, and when each lens cone rotates relative to the fixed sleeve, each convex part can move along the corresponding driving groove to drive the focusing group or the focusing group to move along the guide hole, so that the focusing group and the focusing group can be relatively close to and far away from each other.
8. The zoom lens according to claim 7, wherein a tooth portion is provided on an outer peripheral wall of each lens barrel along a circumferential direction thereof;
the zoom lens further comprises two driving motors fixedly connected with the fixing sleeve, each driving motor is provided with an output rotating shaft extending along the axial direction of the fixing sleeve, a driving gear is arranged at the end of the output rotating shaft and is in meshed transmission with the corresponding tooth part, and the output rotating shaft drives the driving gear to rotate so as to drive the tooth part to drive the corresponding lens cone to rotate.
9. The zoom lens of claim 8, further comprising a controller, a first displacement sensor and a second displacement sensor, wherein the first displacement sensor is configured to detect a first displacement signal of the focus group, the second displacement sensor is configured to detect a second displacement signal of the focus group, and the controller is electrically connected to the first displacement sensor, the second displacement sensor and the two driving motors to drive the corresponding focus group displacement according to the first displacement signal and to drive the corresponding focus group displacement according to the second displacement signal.
10. An observation apparatus comprising the zoom lens according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223059209.4U CN218675450U (en) | 2022-11-16 | 2022-11-16 | Zoom lens and observation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223059209.4U CN218675450U (en) | 2022-11-16 | 2022-11-16 | Zoom lens and observation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218675450U true CN218675450U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223059209.4U Active CN218675450U (en) | 2022-11-16 | 2022-11-16 | Zoom lens and observation apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN218675450U (en) |
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- 2022-11-16 CN CN202223059209.4U patent/CN218675450U/en active Active
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