CN116088151A - Split type optical zoom lens - Google Patents
Split type optical zoom lens Download PDFInfo
- Publication number
- CN116088151A CN116088151A CN202211718201.6A CN202211718201A CN116088151A CN 116088151 A CN116088151 A CN 116088151A CN 202211718201 A CN202211718201 A CN 202211718201A CN 116088151 A CN116088151 A CN 116088151A
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- China
- Prior art keywords
- lens
- zoom lens
- focal length
- wheel
- screw rod
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
- G02B15/10—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by adding a part, e.g. close-up attachment
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Abstract
The invention relates to a split type optical zoom lens, which comprises a first lens module and a second lens module; the first lens module comprises at least two coaxially arranged optical lenses, and the axis of each optical lens is an optical axis; the second lens module comprises a lens shell, a first zoom lens, a second zoom lens, a first focal length adjusting component and a second focal length adjusting component, wherein the first zoom lens, the second zoom lens, the first focal length adjusting component and the second focal length adjusting component are positioned in the lens shell; the first zoom lens and the second zoom lens are arranged along the optical axis, the first focal length adjusting assembly is connected with the first zoom lens, the second focal length adjusting assembly is connected with the second zoom lens, and the first lens module is detachably connected to the upper end of the second lens module.
Description
Technical Field
The invention relates to the technical field of optical imaging, in particular to a split type optical zoom lens.
Background
The conventional zoom lens drives the whole lens to move by means of a motor, because the whole lens has large mass, and when the whole lens moves, the moving range is large, so that the power consumption is increased, in the prior art, the whole lens is divided into a plurality of lens modules, and then the zoom lens of a single lens module is moved, but because the single lens module generally also comprises a plurality of lenses, when the lens module moves, the whole movement of the plurality of lenses still has a relatively large power consumption for the motor, and a relatively good effect still cannot be achieved, when the lens module moves, the motor in the prior art only can realize the focal length change after the combination of the plurality of lens modules, and cannot realize the focal length change of the single lens module, so that the plurality of lens modules must be matched for use during imaging, and further the limitation of the use of the lens modules is brought.
Disclosure of Invention
Based on the above description, the invention provides a split optical zoom lens, so as to solve the technical problems that the whole moving range of a lens module is large, the power consumption is large, and the use limitation is caused by the difficulty in realizing zooming in a single lens module in the prior art.
The technical scheme for solving the technical problems is as follows:
a split optical zoom lens comprises a first lens module and a second lens module;
the first lens module comprises at least two coaxially arranged optical lenses, and the axis of each optical lens is an optical axis;
the second lens module comprises a lens shell, a first zoom lens, a second zoom lens, a first focal length adjusting component and a second focal length adjusting component, wherein the first zoom lens, the second zoom lens, the first focal length adjusting component and the second focal length adjusting component are positioned in the lens shell; the first zoom lens and the second zoom lens are arranged along an optical axis, the first focal length adjusting component is connected with the first zoom lens and used for adjusting the position of the first zoom lens on the optical axis, the second focal length adjusting component is connected with the second zoom lens and used for adjusting the position of the second zoom lens on the optical axis,
the first lens module is detachably connected to the upper end of the second lens module.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
the split type optical zoom that this application provided, its first lens module and second lens module are detachable design, use as the combined lens when both equipment, when tearing down, because the inside first zoom lens and the second zoom lens that have of second lens module can adjust relative position, can realize the individual zoom of second lens module, and this application realizes whole zoom through the position removal to single lens, has reduced power consumption, has alleviateed the production of the phenomenon of generating heat.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the first focal length adjusting assembly comprises a motor driving unit, a speed changing wheel set and a gear shifting mechanism, a first mounting ring is sleeved on the outer side of the first zoom lens, the first mounting ring is vertically and slidably connected in the lens shell along the optical axis direction, a first nut is connected to the first mounting ring, a first screw rod parallel to the optical axis is arranged in the lens shell, the motor driving unit drives the first screw rod to rotate through the speed changing wheel set, the first nut is sleeved on the first screw rod, the speed changing wheel set is provided with at least two speed output gears, and the gear shifting mechanism is used for selecting a single speed gear.
Further, the motor driving unit comprises an electric motor and a main driving wheel, the speed changing wheel set comprises a driving shaft, a primary driving wheel, a first-gear driving wheel and a second-gear driving wheel which are coaxially and fixedly arranged on the driving shaft, the driving shaft is arranged on the lens shell, an output shaft of the electric motor is connected with the main driving wheel, the main driving wheel is meshed with the primary driving wheel, the speed changing wheel set further comprises a driven shaft, a first-gear driven wheel and a second-gear driven wheel which are rotatably arranged on the driven shaft, the first-gear driving wheel and the first-gear driven wheel are in meshed transmission, the second-gear driving wheel and the second-gear driven wheel are in meshed transmission, one end of the first screw is coaxially connected with one end of the driven shaft through a coupler, the gear shifting mechanism comprises a synchronizer, a gear shifting fork and an actuator, the synchronizer is arranged between the first-gear driven wheel and the second-gear driven wheel and can slide along the axial direction of the driven shaft, and the actuator is connected with the synchronizer through the gear shifting fork so as to drive the synchronizer to be matched with the first-gear driving wheel or the second-gear driving wheel to rotate.
Further, the first focal length adjusting assembly is packaged in the first focusing box, and one end of the first screw rod extends out of the end portion of the first focusing box.
Further, a vibration isolation rubber pad is connected to the periphery of the electric motor.
Further, the outside of second zoom lens has cup jointed the second collar, the vertical sliding connection of second collar along the optical axis direction in the lens shell, be connected with the second nut on the second collar, be provided with in the lens shell with the parallel second lead screw of optical axis, the second nut cup joint in on the second lead screw, second focus adjustment subassembly includes driving motor and bevel gear group, driving motor install in the inner wall of lens barrel shell, driving motor passes through bevel gear group drive second lead screw rotates.
Further, the bevel gear group comprises a first bevel gear and a second bevel gear, the first bevel gear is connected to an output shaft of the driving motor, the second bevel gear is meshed with the first bevel gear for transmission, and the second bevel gear is coaxially fixed to the second screw rod.
Further, the first lens module comprises a lens cone, the optical lens is coaxially arranged inside the lens cone, the lens cone is rotatably connected to one end of the lens shell, the installation depth of the lens cone on the lens shell is adjustable, and the other end of the lens shell is provided with a connecting hole.
Further, the focal lengths of the first and second zoom lenses are different.
Drawings
Fig. 1 is a schematic structural diagram of a split optical zoom lens according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of area A of FIG. 1;
fig. 3 is an enlarged schematic view of region B in fig. 1.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be appreciated that spatially relative terms such as "under … …," "under … …," "below," "under … …," "over … …," "above," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "under … …" and "under … …" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 ° or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
As shown in the drawings, the embodiment of the present application provides a split optical zoom lens, which includes a first lens module 10 and a second lens module 20.
The first lens module 10 includes a lens barrel 11 and four optical lenses 12 coaxially arranged, wherein the four optical lenses 12 are coaxially arranged inside the lens barrel 11, and an axis of the optical lenses 12 is an optical axis L.
In this application, the second lens module 20 includes a lens housing 21 and a first zoom lens 22, a second zoom lens 23, a first focal length adjustment assembly 24 and a second focal length adjustment assembly 25 located inside the lens housing 21; the first zoom lens 22 and the second zoom lens 23 are arranged along an optical axis L, the first focal length adjusting component 23 is connected with the first zoom lens 21 and used for adjusting the position of the first zoom lens 21 on the optical axis L, and the second focal length adjusting component 24 is connected with the second zoom lens 22 and used for adjusting the position of the second zoom lens 23 on the optical axis L.
Wherein the focal lengths of the first zoom lens 22 and the second zoom lens 23 are different.
The first lens module 10 is detachably connected to the upper end of the second lens module 20.
Specifically, the lens barrel 11 is rotatably connected to one end of the lens housing 21, the mounting depth of the lens barrel 11 on the lens housing 21 is adjustable, and the other end of the lens housing 21 has a connection hole.
In the present embodiment, the lens barrel 11 is screwed to one end of the lens housing 21, and the depth of the screwed connection can control the depth of the lens housing 21.
The first focal length adjusting assembly 24 includes a motor driving unit 241, a gear-shifting wheel set 242 and a gear-shifting mechanism 243, a first mounting ring 221 is sleeved on the outer side of the first zoom lens 22, the first mounting ring 221 is vertically and slidably connected in the lens housing 21 along the optical axis direction, a first nut 222 is connected to the first mounting ring 221, a first screw rod 211 parallel to the optical axis L is disposed in the lens housing 21, the motor driving unit 241 drives the first screw rod 211 to rotate through the gear-shifting wheel set 242, the first nut 222 is sleeved on the first screw rod 211, the gear-shifting wheel set 242 has two speed output gears, and the gear-shifting mechanism 243 is used for selecting a single speed gear.
Specifically, the motor driving unit 241 includes an electric motor 2411 and a main driving wheel 2412, the gear shifting wheel set 242 includes a driving shaft 2421, and a primary driving wheel 2422, a primary driving wheel 2423 and a secondary driving wheel 2424 coaxially and fixedly mounted on the driving shaft 2421, the driving shaft 2421 is mounted on the lens housing 21, an output shaft of the electric motor 2411 is connected to the main driving wheel 2412, and the main driving wheel 2412 is meshed with the primary driving wheel 2422.
The gear set further comprises a driven shaft 2425, a first-gear driven wheel 2426 and a second-gear driven wheel 2427 rotatably mounted on the driven shaft 2425, the first-gear driven wheel 2426 and the first-gear driving wheel 2423 are in meshed transmission, the second-gear driving wheel 24224 and the second-gear driven wheel 2427 are in meshed transmission, and one end of the first screw rod 211 is coaxially connected with one end of the driven shaft 2425 through a coupling.
The gear shifting mechanism 243 includes a synchronizer 2431, a gear shifting fork 2432 and an actuator 2433, the synchronizer 2431 is connected to the driven shaft 2425 by a key, the key connection is to realize circumferential fixation of the driven shaft 2425 and the synchronizer 2431 to transmit motion and torque, the synchronizer 2431 is between the first-gear driven wheel 2426 and the second-gear driven wheel 2427 and can slide along the axial direction of the driven shaft 2425, and the actuator 2433 is connected to the synchronizer 2431 by the gear shifting fork 2432 to drive the synchronizer 2431 to rotate in cooperation with the first-gear driven wheel 2426 or the second-gear driven wheel 2427.
In this embodiment, the actuator 2433 is preferably a miniature linear motor.
The first focal length adjusting assembly 24 is encapsulated inside the first focusing box 26, and one end of the first screw rod 211 extends out from the end of the first focusing box 26.
To damp vibration, a vibration-damping rubber pad is connected to the outer periphery of the electric motor 2411.
The main driving wheel 2412 can be driven to rotate by the rotation of the electric motor 2411, the main driving wheel 2412 drives the primary driving wheel 2422 to rotate, the first-gear driving wheel 2423 and the second-gear driving wheel 2424 are realized, the first-gear driven wheel 2426 and the second-gear driven wheel 2427 are in meshed transmission relation, at this time, the first-gear driven wheel 2426 and the second-gear driven wheel 2427 are rotatably arranged on the driven shaft 2425, so that the driven shaft 2425 cannot rotate, and when the actuator 2433 drives the synchronizer 2431 to select the first-gear driven wheel 2426 or the second-gear driven wheel 2427 through a gear shifting fork, the driven shaft 2425 rotates at different rotation speeds, and further the first zoom lens 22 moves at different speeds, and coarse adjustment and fine adjustment of the focal length of a lens are realized.
In this embodiment, the second mounting ring 231 is sleeved on the outer side of the second zoom lens 23, the second mounting ring 231 is vertically slidably connected in the lens housing 21 along the optical axis direction, a second nut 232 is connected to the second mounting ring 231, a second screw rod 212 parallel to the optical axis is disposed in the lens housing 21, the second nut 232 is sleeved on the second screw rod 212, the second focal length adjusting assembly 25 includes a driving motor 251 and a bevel gear set 252, the driving motor 251 is mounted on the inner wall of the lens barrel housing 21, and the driving motor 251 drives the second screw rod 212 to rotate through the bevel gear set 252.
The bevel gear set 252 includes a first bevel gear 2521 and a second bevel gear 2522, the first bevel gear 2521 is connected to the output shaft of the driving motor 251, the second bevel gear 2522 and the first bevel gear 2521 are meshed for transmission, and the second bevel gear 2522 is coaxially fixed to the second screw 212.
The rotation of the second screw rod 212 is realized through the rotation of the driving motor 251, so that the second nut 232 drives the second zoom lens 23 to move on the optical axis L, and the focal length of the single lens module is adjusted by matching with the movement of the first zoom lens 22.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The split optical zoom lens is characterized by comprising a first lens module and a second lens module;
the first lens module comprises at least two coaxially arranged optical lenses, and the axis of each optical lens is an optical axis;
the second lens module comprises a lens shell, a first zoom lens, a second zoom lens, a first focal length adjusting component and a second focal length adjusting component, wherein the first zoom lens, the second zoom lens, the first focal length adjusting component and the second focal length adjusting component are positioned in the lens shell; the first zoom lens and the second zoom lens are arranged along an optical axis, the first focal length adjusting component is connected with the first zoom lens and used for adjusting the position of the first zoom lens on the optical axis, the second focal length adjusting component is connected with the second zoom lens and used for adjusting the position of the second zoom lens on the optical axis,
the first lens module is detachably connected to the upper end of the second lens module.
2. The split type optical zoom lens according to claim 1, wherein the first focal length adjusting assembly comprises a motor driving unit, a speed changing wheel set and a gear shifting mechanism, a first mounting ring is sleeved on the outer side of the first zoom lens, the first mounting ring is vertically and slidably connected in the lens housing along the direction of an optical axis, a first nut is connected to the first mounting ring, a first screw rod parallel to the optical axis is arranged in the lens housing, the motor driving unit drives the first screw rod to rotate through the speed changing wheel set, the first nut is sleeved on the first screw rod, the speed changing wheel set is provided with at least two speed output gears, and the gear shifting mechanism is used for selecting a single speed gear.
3. The split type optical zoom lens according to claim 2, wherein the motor driving unit comprises an electric motor and a main driving wheel, the speed change wheel set comprises a driving shaft and a primary driving wheel, a primary driving wheel and a secondary driving wheel which are coaxially and fixedly installed on the driving shaft, the driving shaft is installed on the lens shell, an output shaft of the electric motor is connected with the main driving wheel, the main driving wheel is meshed with the primary driving wheel, the speed change wheel set further comprises a driven shaft and a primary driven wheel and a secondary driven wheel which are rotatably installed on the driven shaft, the primary driving wheel and the primary driven wheel are meshed and driven, the secondary driving wheel and the secondary driven wheel are meshed and driven, one end of the first screw rod is coaxially connected with one end of the driven shaft through a coupler, the shifting mechanism comprises a synchronizer, a shifting fork and an actuator, the synchronizer is arranged between the primary driven wheel and the secondary driven wheel and can slide along the axial direction of the driven shaft, and the actuator is connected with the synchronizer through the shifting fork so as to drive the synchronizer to rotate together with the primary driving wheel or the secondary driving wheel.
4. The split optical zoom lens according to claim 3, wherein the first focal length adjustment assembly is enclosed within a first focusing case, and one end of the first screw rod protrudes from an end of the first focusing case.
5. A split optical zoom lens according to claim 3, wherein a vibration-insulating rubber pad is attached to the outer periphery of the electric motor.
6. The split type optical zoom lens according to claim 3, wherein a second mounting ring is sleeved on the outer side of the second zoom lens, the second mounting ring is vertically and slidably connected in the lens housing along the optical axis direction, a second nut is connected to the second mounting ring, a second screw rod parallel to the optical axis is arranged in the lens housing, the second nut is sleeved on the second screw rod, the second focal length adjusting assembly comprises a driving motor and a bevel gear set, the driving motor is mounted on the inner wall of the lens housing, and the driving motor drives the second screw rod to rotate through the bevel gear set.
7. The split type optical zoom lens according to claim 6, wherein the bevel gear group comprises a first bevel gear and a second bevel gear, the first bevel gear is connected to an output shaft of the driving motor, the second bevel gear and the first bevel gear are engaged and driven, and the second bevel gear is coaxially fixed to the second screw rod.
8. The split type optical zoom lens according to claim 6, wherein the first lens module comprises a lens barrel, the optical lens is coaxially disposed inside the lens barrel, the lens barrel is rotatably connected to one end of the lens housing, the mounting depth of the lens barrel on the lens housing is adjustable, and the other end of the lens housing has a connecting hole.
9. The split optical zoom lens of claim 6, wherein the first and second zoom lenses differ in focal length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211718201.6A CN116088151A (en) | 2022-12-29 | 2022-12-29 | Split type optical zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211718201.6A CN116088151A (en) | 2022-12-29 | 2022-12-29 | Split type optical zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116088151A true CN116088151A (en) | 2023-05-09 |
Family
ID=86211499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211718201.6A Pending CN116088151A (en) | 2022-12-29 | 2022-12-29 | Split type optical zoom lens |
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| CN (1) | CN116088151A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04180008A (en) * | 1990-11-15 | 1992-06-26 | Konica Corp | Lens barrel for zoom lens |
| US5305038A (en) * | 1991-07-30 | 1994-04-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens camera |
| CN210920075U (en) * | 2019-05-08 | 2020-07-03 | 长沙艾科瑞齿轮机械有限责任公司 | Gearbox capable of automatically shifting gears |
| CN112578527A (en) * | 2020-12-29 | 2021-03-30 | 国网辽宁省电力有限公司鞍山供电公司 | Unmanned aerial vehicle camera lens peripheral hardware subassembly that zooms |
| CN216118169U (en) * | 2021-08-30 | 2022-03-22 | 义浩捷光学(苏州)有限公司 | Adjustable integrated optical lens |
| CN216718786U (en) * | 2022-01-27 | 2022-06-10 | 鹰潭市澳翔光电仪器有限公司 | Double-speed focusing device for telescope |
| CN217767034U (en) * | 2022-06-24 | 2022-11-08 | 昆明朗特光学仪器有限公司 | Double-speed focusing mechanism for lens body of target observation lens |
-
2022
- 2022-12-29 CN CN202211718201.6A patent/CN116088151A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04180008A (en) * | 1990-11-15 | 1992-06-26 | Konica Corp | Lens barrel for zoom lens |
| US5305038A (en) * | 1991-07-30 | 1994-04-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens camera |
| CN210920075U (en) * | 2019-05-08 | 2020-07-03 | 长沙艾科瑞齿轮机械有限责任公司 | Gearbox capable of automatically shifting gears |
| CN112578527A (en) * | 2020-12-29 | 2021-03-30 | 国网辽宁省电力有限公司鞍山供电公司 | Unmanned aerial vehicle camera lens peripheral hardware subassembly that zooms |
| CN216118169U (en) * | 2021-08-30 | 2022-03-22 | 义浩捷光学(苏州)有限公司 | Adjustable integrated optical lens |
| CN216718786U (en) * | 2022-01-27 | 2022-06-10 | 鹰潭市澳翔光电仪器有限公司 | Double-speed focusing device for telescope |
| CN217767034U (en) * | 2022-06-24 | 2022-11-08 | 昆明朗特光学仪器有限公司 | Double-speed focusing mechanism for lens body of target observation lens |
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