CN112764190A - High-speed zoom lens and photographic equipment - Google Patents
High-speed zoom lens and photographic equipment Download PDFInfo
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- CN112764190A CN112764190A CN202110045377.9A CN202110045377A CN112764190A CN 112764190 A CN112764190 A CN 112764190A CN 202110045377 A CN202110045377 A CN 202110045377A CN 112764190 A CN112764190 A CN 112764190A
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- speed zoom
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000001939 inductive effect Effects 0.000 claims description 24
- 230000006698 induction Effects 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- 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
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- 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
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/18—Focusing aids
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a high-speed zoom lens and photographic equipment, wherein the high-speed zoom lens comprises a lens barrel, a lens, a movable carrier and a displacement measurement component; the lens barrel is provided with an inner cavity, the lens is arranged in the inner cavity, the movable carrier is movably arranged in the inner cavity along the length direction of the lens barrel, the movable carrier is fixed on the periphery of the lens, and the displacement measuring assembly is arranged between the lens barrel and the movable carrier and used for measuring the moving stroke of the movable carrier.
Description
Technical Field
The invention relates to the field of photographic equipment, in particular to a high-speed zoom lens and photographic equipment.
Background
The existing zoom lens is driven by a stepping motor to move in a lens barrel so as to realize zooming, but the zooming speed is low by driving the stepping motor. If the high-speed motor is used for replacing the stepping motor to improve the zooming speed of the lens, the displacement accuracy is influenced due to the fact that the lens displacement speed is increased, and therefore the stability of the zoom lens is influenced.
Disclosure of Invention
The invention mainly aims to provide a high-speed zoom lens and photographic equipment, and aims to ensure the stability of the zoom lens under the driving of a high-speed motor.
In order to achieve the above object, the present invention provides a high-speed zoom lens, including a lens barrel having an inner cavity;
a lens disposed in the inner cavity;
the movable carrier is movably arranged in the inner cavity along the length direction of the lens barrel and is fixed on the periphery of the lens; and the number of the first and second groups,
and the displacement measuring assembly is arranged between the lens cone and the movable carrier and used for measuring the moving stroke of the movable carrier.
Optionally, the displacement measuring assembly includes an induction sensor and a trigger body capable of triggering the induction of the induction sensor, the trigger body is formed with a plurality of trigger portions, one of the induction sensor and the trigger body is disposed on the lens barrel, the other is disposed on the movable carrier, and the induction sensor and the trigger body move relatively to the induction sensor opposite to one of the trigger portions to sense the corresponding trigger portion.
Optionally, the inductive sensor is a magnetic sensor, the trigger is a magnetic strip disposed opposite to the magnetic sensor, and the plurality of triggers are a plurality of magnet segments formed on the magnetic strip by magnetization at intervals.
Optionally, the inductive sensor is an optical sensor, the trigger is a reflection grating disposed opposite to the optical sensor, and the plurality of trigger portions are a plurality of grating lines formed on the reflection grating.
Optionally, the inductive sensor is disposed on the lens barrel, and the trigger body is disposed on the movable carrier;
the side wall of the lens cone is provided with an opening communicated with the inner cavity;
the high-speed zoom lens further comprises a positioning and fixing structure, and the positioning and fixing structure comprises:
the equal-height platform structure comprises a plurality of equal-height platforms which are convexly arranged on the periphery of the opening;
the two positioning columns are respectively arranged on two opposite sides of the opening;
the mounting plate is covered on the openings and arranged on the equal-height platforms, two limiting grooves are formed in two opposite side ends of the mounting plate and are respectively matched with the two positioning columns correspondingly; and the number of the first and second groups,
the threaded connection structure comprises a threaded mounting hole which is arranged on the lens cone and is positioned at the periphery of the opening, a connecting hole which is arranged on the mounting plate, and a locking screw which is arranged in the connecting hole in a penetrating way and is locked in the threaded mounting hole in a threaded way;
wherein, inductive transducer locates the mounting panel orientation on the terminal surface of inner chamber.
Optionally, the movable carrier is formed with a mounting groove;
the trigger body is arranged in the mounting groove;
ultraviolet glue is arranged between the trigger body and the groove wall of the mounting groove.
Optionally, the high-speed zoom lens further includes a guide structure, the guide structure includes a guide hole and a guide shaft which are slidably engaged with each other, one of the guide hole and the guide shaft is disposed in the lens barrel, and the other is disposed in the moving carrier.
Optionally, the movable carriers and the displacement measurement assemblies are arranged in a movable group in a one-to-one correspondence manner, and the movable groups are arranged in a plurality and are arranged at intervals along the circumferential direction of the lens.
The invention also provides photographic equipment, which comprises a high-speed zoom lens, wherein the high-speed zoom lens comprises a lens barrel and an inner cavity;
a lens disposed in the inner cavity;
the movable carrier is movably arranged in the inner cavity along the length direction of the lens barrel and is fixed on the periphery of the lens; and the number of the first and second groups,
and the displacement measuring assembly is arranged between the lens cone and the movable carrier and used for measuring the moving stroke of the movable carrier.
Optionally, the photographic device is a security camera.
In the technical scheme of the invention, when the high-speed zoom lens is focused, the lens moves in the lens barrel along with the moving carrier, and the displacement measuring assembly arranged between the moving carrier and the lens barrel can measure the moving stroke of the moving carrier and the lens, so as to detect whether the lens moves to a focusable position, thereby improving the focusing accuracy of the high-speed zoom lens.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 illustrating an embodiment of a high-speed zoom lens according to the present invention;
FIG. 2 is an enlarged schematic view of detail A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is an enlarged schematic view of detail C of FIG. 3;
FIG. 5 is a schematic perspective view of the mobile carrier of FIG. 1;
FIG. 6 is an enlarged schematic view of detail D of FIG. 5;
FIG. 7 is a schematic cross-sectional view taken along direction E-E of FIG. 6;
FIG. 8 is a perspective view of the mounting plate of FIG. 1;
the embodiment of the invention is illustrated by reference numerals:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory 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 existing zoom lens is driven by a stepping motor to enable the zooming speed to be low, if the high-speed motor is used for replacing the stepping motor to improve the zooming speed of a lens, the displacement accuracy is influenced due to the fact that the lens displacement speed is accelerated, and therefore the stability of the zoom lens is influenced. In view of the above, the present invention provides a high-speed zoom lens and a photographing apparatus. Fig. 1 to 8 are views illustrating an embodiment of a high speed zoom lens according to the present invention.
Referring to fig. 1 to 8, the high-speed zoom lens 100 includes a lens barrel 1, a lens 2, a moving carrier 3 and a displacement measuring assembly 4, wherein the lens barrel 1 has an inner cavity; the lens 2 is arranged in the inner cavity; the movable carrier 3 is movably arranged in the inner cavity along the length direction of the lens barrel 1, and the movable carrier 3 is fixed on the periphery of the lens 2; the displacement measuring assembly 4 is arranged between the lens barrel 1 and the movable carrier 3 and is used for measuring the moving stroke of the movable carrier 3.
In the technical solution of the present invention, when the high-speed zoom lens 100 is focused, the lens 2 moves in the lens barrel 1 along with the moving carrier 3, and the displacement measuring assembly 4 disposed between the moving carrier 3 and the lens barrel 1 can measure the moving stroke of the moving carrier 3 and the lens 2, so as to detect whether the lens 2 moves to a focusable position, thereby improving the focusing accuracy of the high-speed zoom lens 100.
The displacement measuring assembly 4 includes an inductive sensor 41 and a trigger body 42 capable of triggering the inductive sensor 41 to sense, a plurality of trigger portions 421 are formed on the trigger body 42, one of the inductive sensor 41 and the trigger body 42 is disposed on the lens barrel 1, and the other is disposed on the movable carrier 3 (see fig. 4), the inductive sensor 41 and the trigger body 42 move relatively to the inductive sensor 41 and the trigger portion 421 to sense the corresponding trigger portion 421, so as to detect whether the lens 2 moves to a specific position, thereby improving the focusing accuracy of the high-speed zoom lens 100.
Specifically, the present invention does not limit the specific forms of the induction sensor 41 and the trigger 42, in this embodiment, the induction sensor 41 is a magnetic sensor, the trigger 42 is a magnetic strip disposed opposite to the magnetic sensor, the plurality of trigger 421 are a plurality of magnetic segments formed on the magnetic strip by interval magnetization, and when the magnetic sensor moves to be opposite to one of the magnetic segments, the magnetic sensor generates induction, so as to measure the displacement of the moving carrier 3 and the lens 2, and further detect whether the lens 2 moves to a specified position, thereby improving the focusing accuracy of the high-speed zoom lens 100.
In another embodiment, the sensing sensor 41 is an optical sensor, the triggering body 42 is a reflection grating disposed opposite to the optical sensor, the triggering portions 421 are grating lines formed on the reflection grating, the emitting portion of the optical sensor can emit detection light to the reflection grating, the light receiving portion of the optical sensor can receive the reflection light of the reflection grating, when the optical sensor moves to be opposite to one of the grating lines, the intensity of the reflection light received by the light receiving portion of the optical sensor changes, and the optical sensor senses, so that the displacement of the moving carrier 3 and the lens 2 can be measured, and further, whether the lens 2 moves to a specified position or not can be detected, and the focusing accuracy of the high-speed zoom lens 100 can be improved.
Specifically, the present invention does not limit the installation positions of the inductive sensor 41 and the trigger 42, and the inductive sensor 41 may be installed on the lens barrel 1, the trigger 42 may be installed on the movable carrier 3, or the trigger 42 may be installed on the lens barrel 1, and the inductive sensor 41 may be installed on the movable carrier 3; in this embodiment, the sensing sensor 41 is disposed on the lens barrel 1, the trigger 42 is disposed on the movable carrier 3, when the movable carrier 3 is displaced, the sensing sensor 41 and the trigger 42 move relatively, and when the sensing sensor 41 is opposite to one of the trigger 421, sensing is generated, so as to measure the displacement of the movable carrier 3 and the lens 2, thereby detecting whether the lens 2 is moved to a specified position, and improving the focusing accuracy of the high-speed zoom lens 100.
Based on the above embodiment, the inductive sensor 41 is disposed on the lens barrel 1, and the trigger 42 is disposed on the movable carrier 3; the side wall of the lens cone is provided with an opening communicated with the inner cavity; further, the high-speed zoom lens 100 further includes a positioning fixing structure 5 (see fig. 6 to 8), and the positioning fixing structure 5 includes: an equal-height platform 511 structure 51, comprising a plurality of equal-height platforms 511 convexly arranged on the periphery of the opening; two positioning columns 52 respectively arranged at two opposite sides of the opening; the mounting plate 53 is covered on the opening, the mounting plate 53 is arranged on the plurality of equal-height platforms 511, two limiting grooves 531 are arranged at two opposite side ends of the mounting plate 53, and the two limiting grooves 531 are respectively matched with the two positioning columns 52 correspondingly; the threaded connection structure 54 comprises a threaded mounting hole 542 which is arranged on the lens barrel 1 and is positioned on the periphery of the opening, a connecting hole 541 which is arranged on the mounting plate 53, and a locking screw which is arranged in the connecting hole 541 in a penetrating way and is locked in the threaded mounting hole 542 in a threaded way; specifically, the inductive sensor 41 is disposed on the end surface 532 of the inner cavity facing the mounting plate 53, and the positioning fixing structure 5 keeps the vertical distance from the inductive sensor 41 to the trigger 42 unchanged, and limits the deflection of the inductive sensor 41 in the X, Y and Z axial directions, so that the measurement of the displacement measuring assembly 4 is more accurate, and the stability of the high-speed zoom lens 100 is further improved.
The movable carrier 3 is formed with a mounting groove 31; the trigger body 42 is arranged in the mounting groove 31, the ultraviolet glue 312 is arranged between the trigger body 42 and the groove wall 311 of the mounting groove 31, and the ultraviolet glue 312 can adhere to the trigger body 42, so that the vertical distance from the trigger body 42 to the induction sensor 41 is unchanged, and the deflection of the trigger body 42 in the X, Y and Z axial directions is limited, so that the measurement of the displacement measurement component 4 is more accurate, and the stability of the high-speed zoom lens 100 is further improved.
Specifically, the relative displacement direction between the inductive sensor 41 and the trigger 42 is the Y-axis direction, the direction horizontally perpendicular to the relative displacement direction is the X-axis direction, and the direction vertically perpendicular to the relative displacement direction is the Z-axis direction.
In order to improve the stability of the high-speed zoom lens 100, the high-speed zoom lens 100 further includes a guiding structure 6, the guiding structure 6 includes a guiding hole 61 and a guiding shaft 62 (see fig. 4) which are slidably engaged with each other, one of the guiding hole 61 and the guiding shaft 62 is disposed in the lens barrel 1, and the other is disposed in the moving carrier 3, so that the moving direction of the moving carrier 3 is more accurate.
Furthermore, in the present invention, the moving carriers 3 and the displacement measurement assemblies 4 are correspondingly arranged as a plurality of moving groups one to one, and the moving groups are arranged at intervals along the circumferential direction of the lens 2, so that the lens 2 can move to a designated position at a high speed to complete focusing, thereby improving the stability of the high-speed zoom lens 100.
The present invention further provides a photographing apparatus, including the above-mentioned high-speed zoom lens 100, wherein the photographing apparatus includes all technical features of the above-mentioned high-speed zoom lens 100, and therefore, the photographing apparatus also has technical effects brought by all the technical features, and details are not repeated herein.
Specifically, in this embodiment, the photography equipment is a security camera, the zoom speed of the security camera is faster than the zoom speed of the existing automatic zoom security camera, and because the high-speed zoom lens 100 is provided with the displacement measurement component 4 and the positioning fixed structure 5 and the mounting groove 31, so that the mobile carrier 3 reaches the displacement of the lens 2 is accurately measured, the stability of the high-speed zoom lens 100 is enhanced, so that the security camera can not only stably change focal length at high speed, but also is convenient for consumers to use.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A high-speed zoom lens, comprising:
a lens barrel provided with an inner cavity;
a lens disposed in the inner cavity;
the movable carrier is movably arranged in the inner cavity along the length direction of the lens barrel and is fixed on the periphery of the lens; and the number of the first and second groups,
and the displacement measuring assembly is arranged between the lens cone and the movable carrier and used for measuring the moving stroke of the movable carrier.
2. The high-speed zoom lens according to claim 1, wherein the displacement measurement module includes an inductive sensor and a trigger body capable of triggering the inductive sensor to sense, the trigger body is formed with a plurality of trigger portions, one of the inductive sensor and the trigger body is disposed on the lens barrel, the other one of the inductive sensor and the trigger body is disposed on the movable carrier, and the inductive sensor and the trigger body move relatively to the inductive sensor and the trigger portion to sense the corresponding trigger portion.
3. The high-speed zoom lens according to claim 2, wherein the induction sensor is a magnetic sensor, the trigger is a magnetic strip disposed opposite to the magnetic sensor, and the plurality of trigger parts are a plurality of magnet segments formed on the magnetic strip by magnetization at intervals.
4. The high-speed zoom lens according to claim 2, wherein the induction sensor is an optical sensor, the trigger is a reflection grating disposed opposite to the optical sensor, and the plurality of trigger portions are a plurality of grating lines formed on the reflection grating.
5. The high-speed zoom lens according to claim 2, wherein the sensing sensor is disposed on the lens barrel, and the trigger is disposed on the movable carrier;
the side wall of the lens cone is provided with an opening communicated with the inner cavity;
the high-speed zoom lens further comprises a positioning and fixing structure, and the positioning and fixing structure comprises:
the equal-height platform structure comprises a plurality of equal-height platforms which are convexly arranged on the periphery of the opening;
the two positioning columns are respectively arranged on two opposite sides of the opening;
the mounting plate is covered on the openings and arranged on the equal-height platforms, two limiting grooves are formed in two opposite side ends of the mounting plate and are respectively matched with the two positioning columns correspondingly; and the number of the first and second groups,
the threaded connection structure comprises a threaded mounting hole which is arranged on the lens cone and is positioned at the periphery of the opening, a connecting hole which is arranged on the mounting plate, and a locking screw which is arranged in the connecting hole in a penetrating way and is locked in the threaded mounting hole in a threaded way;
wherein, inductive transducer locates the mounting panel orientation on the terminal surface of inner chamber.
6. The high-speed zoom lens according to claim 2, wherein the moving carrier is formed with a mounting groove;
the trigger body is arranged in the mounting groove;
ultraviolet glue is arranged between the trigger body and the groove wall of the mounting groove.
7. The high-speed zoom lens according to claim 1, further comprising a guiding structure, wherein the guiding structure comprises a guiding hole and a guiding shaft which are slidably engaged with each other, and one of the guiding hole and the guiding shaft is disposed on the lens barrel, and the other is disposed on the moving carrier.
8. The high-speed zoom lens according to claim 1, wherein the moving carriers and the displacement measurement units are provided in a one-to-one correspondence as a plurality of moving groups, and the moving groups are provided at intervals in a circumferential direction of the lens.
9. A photographing apparatus comprising the high-speed zoom lens according to any one of claims 1 to 8.
10. The camera device of claim 9, wherein the camera device is a security camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110045377.9A CN112764190A (en) | 2021-01-13 | 2021-01-13 | High-speed zoom lens and photographic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110045377.9A CN112764190A (en) | 2021-01-13 | 2021-01-13 | High-speed zoom lens and photographic equipment |
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| Publication Number | Publication Date |
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| CN112764190A true CN112764190A (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110045377.9A Pending CN112764190A (en) | 2021-01-13 | 2021-01-13 | High-speed zoom lens and photographic equipment |
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| CN (1) | CN112764190A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126241A (en) * | 2021-05-10 | 2021-07-16 | 中山联合光电科技股份有限公司 | Zoom lens and security camera |
| CN113126243A (en) * | 2021-05-10 | 2021-07-16 | 中山联合光电科技股份有限公司 | Circuit mounting structure of displacement sensor probe, zoom lens and image pickup device |
| CN113126242A (en) * | 2021-05-10 | 2021-07-16 | 中山联合光电科技股份有限公司 | Zoom lens and security camera |
| CN113296226A (en) * | 2021-06-09 | 2021-08-24 | 中山联合光电科技股份有限公司 | Zoom Lenses and Photographic Equipment |
| CN113296227A (en) * | 2021-06-09 | 2021-08-24 | 中山联合光电科技股份有限公司 | Zoom lens and photographing apparatus |
| CN114384662A (en) * | 2021-12-28 | 2022-04-22 | 中山联合光电研究院有限公司 | A tilt angle adjustment structure, lens assembly and photographic equipment |
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| CN113126242A (en) * | 2021-05-10 | 2021-07-16 | 中山联合光电科技股份有限公司 | Zoom lens and security camera |
| CN113126241B (en) * | 2021-05-10 | 2025-04-01 | 中山联合光电科技股份有限公司 | Zoom lenses and security cameras |
| CN113296226A (en) * | 2021-06-09 | 2021-08-24 | 中山联合光电科技股份有限公司 | Zoom Lenses and Photographic Equipment |
| CN113296227A (en) * | 2021-06-09 | 2021-08-24 | 中山联合光电科技股份有限公司 | Zoom lens and photographing apparatus |
| CN113296226B (en) * | 2021-06-09 | 2024-11-08 | 中山联合光电科技股份有限公司 | Zoom lens and photographic equipment |
| CN114384662A (en) * | 2021-12-28 | 2022-04-22 | 中山联合光电研究院有限公司 | A tilt angle adjustment structure, lens assembly and photographic equipment |
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