CN214201891U - High-speed zoom lens and photographic equipment - Google Patents
High-speed zoom lens and photographic equipment Download PDFInfo
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- CN214201891U CN214201891U CN202120088846.0U CN202120088846U CN214201891U CN 214201891 U CN214201891 U CN 214201891U CN 202120088846 U CN202120088846 U CN 202120088846U CN 214201891 U CN214201891 U CN 214201891U
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Abstract
The utility model discloses a high-speed zoom lens and photographic equipment, wherein, high-speed zoom lens includes lens cone, lens, removal carrier and displacement measurement subassembly; the lens cone is provided with the inner chamber, lens are located in the inner chamber, remove the carrier and follow the length direction movable mounting of lens cone in the inner chamber, it is fixed in to remove the carrier the periphery of lens, the displacement measurement subassembly is located the lens cone with remove between the carrier, be used for the measurement remove the removal stroke of carrier, the technical scheme of the utility model make when zoom uses high-speed motor to drive, can accurately focus, guarantee zoom's stability.
Description
Technical Field
The utility model belongs to the technical field of photography equipment and specifically relates to a high-speed zoom lens and photography 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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-speed zoom lens and photography equipment, aim at guaranteeing the stability of zoom lens under the high-speed motor drive.
In order to achieve the above object, the present invention provides a high-speed zoom lens, which includes 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 utility model also provides a photographic device, which comprises a high-speed zoom lens, wherein the high-speed zoom lens comprises a lens cone and is 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.
Optionally, the photographic device is a security camera.
In the technical scheme of the utility model, work as during high-speed zoom focuses on, lens can follow remove the carrier and be in the lens cone removes, and sets up remove the carrier with displacement measurement subassembly between the lens cone can measure remove the carrier with the removal stroke of lens detects with this whether lens remove the focusable position, thereby improves the precision of high-speed zoom focus.
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 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 utility model provides an embodiment reference numeral explains:
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 upper, lower, left, right, front and rear … …) are involved in the embodiment 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 drawings), and if the specific posture is changed, the directional indications are changed accordingly.
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 or cannot be realized, the combination of the technical solutions 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 this, the present invention provides a high-speed zoom lens and a photographing apparatus. Fig. 1 to 8 illustrate 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 scheme of the utility model, when high-speed zoom 100 focuses on, lens 2 can follow remove carrier 3 and be in lens cone 1 removes, and sets up remove carrier 3 with displacement measurement subassembly 4 between lens cone 1 can measure remove carrier 3 with the removal stroke of lens 2 detects with this whether lens 2 removes focusable position, thereby improves the precision of high-speed zoom 100 focuses on.
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 is not limited to the specific form of the sensing sensor 41 and the trigger 42, in this embodiment, the sensing sensor 41 is a magnetic sensor, the trigger 42 is a magnetic stripe disposed opposite to the magnetic sensor, and the trigger 421 is a plurality of magnetic segments formed by magnetization at intervals on the magnetic stripe, when the magnetic sensor moves to one of the magnetic segments opposite to the other magnetic segment, the magnetic sensor generates sensing, 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 specific 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 disposed on the lens barrel 1, the trigger 42 may be disposed on the movable carrier 3, or the trigger 42 may be disposed on the lens barrel 1, and the inductive sensor 41 may be disposed 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, the utility model discloses in, remove carrier 3 with 4 one-to-one of displacement measurement subassembly set up to removing the group, it sets up a plurality ofly to remove the group, and follows the circumference interval of lens 2 sets up, makes lens 2 can remove to the assigned position at a high speed, accomplishes the focus, improves high-speed zoom 100's stability.
The utility model provides a photography equipment, including foretell high-speed zoom lens 100, photography equipment includes above-mentioned high-speed zoom lens 100's whole technical characteristics, consequently, also has the technological effect that above-mentioned whole technical characteristics brought, and here is no longer repeated one by one.
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 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 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 |
|---|---|---|---|
| CN202120088846.0U CN214201891U (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 |
|---|---|---|---|
| CN202120088846.0U CN214201891U (en) | 2021-01-13 | 2021-01-13 | High-speed zoom lens and photographic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214201891U true CN214201891U (en) | 2021-09-14 |
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ID=77635130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120088846.0U Active CN214201891U (en) | 2021-01-13 | 2021-01-13 | High-speed zoom lens and photographic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214201891U (en) |
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2021
- 2021-01-13 CN CN202120088846.0U patent/CN214201891U/en active Active
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