CN112684569A - Lens device and industrial endoscope - Google Patents
Lens device and industrial endoscope Download PDFInfo
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- CN112684569A CN112684569A CN202110046364.3A CN202110046364A CN112684569A CN 112684569 A CN112684569 A CN 112684569A CN 202110046364 A CN202110046364 A CN 202110046364A CN 112684569 A CN112684569 A CN 112684569A
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Abstract
本发明涉及一种镜头装置及工业内窥镜，包括本体、镜头件、线圈组件及磁性滑动件；本体内形成有容纳腔，镜头件、磁性滑动件及线圈组件均置于容纳腔内，磁性滑动件沿本体的轴向可滑动的连接于容纳腔的腔壁；镜头件设于磁性滑动件上且随磁性滑动件的状态改变而改变，线圈组件被配置为用于产生驱动磁性滑动件沿本体的轴向方向移动的磁场力，从而使得磁性滑动件带动镜头件沿本体的轴向方向运动，如此，通过线圈组件产生使得磁性滑动件带动镜头件沿本体的轴向在容纳腔内移动的磁场力，实现了镜头件在镜头装置内的自动位置调节，从而实现本发明提供的镜头装置在有限空间内的自动变焦。
The invention relates to a lens device and an industrial endoscope, comprising a main body, a lens element, a coil assembly and a magnetic sliding element; a accommodating cavity is formed in the main body, and the lens element, the magnetic sliding element and the coil assembly are all placed in the accommodating cavity, and the magnetic The sliding member is slidably connected to the cavity wall of the accommodating cavity along the axial direction of the body; the lens member is arranged on the magnetic sliding member and changes with the state of the magnetic sliding member, and the coil assembly is configured to generate a driving magnetic sliding member along the The magnetic field force moves in the axial direction of the body, so that the magnetic sliding piece drives the lens piece to move in the axial direction of the body, so that the magnetic sliding piece drives the lens piece to move in the accommodating cavity along the axial direction of the body through the coil assembly. The magnetic field force realizes the automatic position adjustment of the lens element in the lens device, thereby realizing the automatic zooming of the lens device provided by the present invention in a limited space.
Description
Technical Field
The invention relates to the technical field of industrial endoscopes, in particular to a lens device and an industrial endoscope.
Background
With the improvement of various manufacturing processes, many product processing and production enterprises can use industrial endoscopes to inspect the product quality or detect and inspect, the industrial endoscopes can be used for inspecting and observing places where high temperature, toxicity, nuclear radiation and human eyes cannot directly observe, the industrial endoscopes are mainly used for the detection fields of automobiles, aero-engines, pipelines, mechanical parts and the like, and nondestructive detection can be realized without disassembling or damaging assembly and equipment to stop running.
The camera imaging systems of the traditional industrial endoscopes are limited by restrictions such as control and space structures, and all adopt a fixed zooming technology or a zooming mode of manually replacing lenses, so that clear imaging effects at different distances are obtained, but the camera imaging systems of the two industrial endoscopes cannot realize automatic zooming in a limited space.
Disclosure of Invention
In view of the above, it is necessary to provide a lens device with automatic zooming and an industrial endoscope, which solve the problem that a camera imaging system of the industrial endoscope cannot realize automatic zooming in a limited space structure.
A lens apparatus, comprising:
the body is internally provided with an accommodating cavity;
the magnetic sliding piece is connected to the cavity wall of the accommodating cavity in an axially sliding mode along the body;
the lens piece is arranged on the magnetic sliding piece;
a coil assembly disposed in the accommodating cavity, wherein the coil assembly is configured to generate a magnetic force capable of driving the magnetic slider to move along the axial direction of the body.
In one embodiment, the magnetic sliding part is configured to bring the lens piece to slide back and forth in the accommodating cavity along the axial direction of the body.
In one embodiment, the coil assembly and the magnetic slider are attracted to or repelled from each other.
In one embodiment, the coil assembly is located on one or both sides of the magnetic slider in the axial direction of the body.
In one embodiment, the coil assembly includes a first coil and a second coil located on both sides of the magnetic slider in an axial direction of the body;
the first coil can generate a first magnetic force, the second coil can generate a second magnetic force, and the direction of the first magnetic force is the same as that of the second magnetic force;
when the first coil and the magnetic sliding piece are mutually attracted or repelled, the second coil and the magnetic sliding piece are mutually repelled or attracted.
In one embodiment, the magnetic slider has first and second poles facing each other in the axial direction of the body;
when the first coil and the first pole are mutually attracted or mutually repelled, the second coil and the second pole are mutually repelled or mutually attracted.
In one embodiment, the lens device includes a magnetic excitation module configured to provide different magnetic excitation signals to the coil assembly so that the coil assembly generates a magnetic force matching the magnetic excitation signals.
In one embodiment, the lens device further comprises an image sensing module;
the image sensing module is used for picking up an image generated by the lens piece and transmitting a control signal according to the definition of the image so as to control the magnetic excitation module to provide different magnetic excitation signals for the coil assembly, so that the lens slides in the accommodating cavity to zoom.
In one embodiment, the lens device further includes a lens disposed in the accommodating cavity and located on a side of the body away from the lens element.
According to another aspect of the present invention, there is provided an industrial endoscope including the lens device described in any one of the above embodiments;
according to the lens device, the coil assembly is arranged, so that the magnetic sliding piece drives the lens piece to move in the accommodating cavity along the axial direction of the body to generate magnetic field force, the automatic position adjustment of the lens piece in the lens device is realized, and the automatic zooming of the lens device in a limited space is realized.
Drawings
Fig. 1 is a cross-sectional view of a lens device according to an embodiment of the invention;
fig. 2 is an isometric view of the lens device shown in fig. 1.
Reference numerals: 100. a lens device; 10. a body; 11. an accommodating chamber; 20. a lens member; 30. a coil assembly; 31. a first coil; 32. a second coil; 40. a magnetic slider; 41. a first pole; 42. a second pole; 50. fixing the slide rail; 51. a first rail; 52. a second rail; 60. a magnetic excitation module; 70. an image sensing module; 80. an information processing module; 90. a lens; d1 magnetic field force direction.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 to 2, a lens device 100 according to an embodiment of the present invention includes a body 10, a lens element 20, a coil assembly 30 and a magnetic sliding element 40.
An accommodating cavity 11 is formed in the body 10, the lens element 20, the magnetic sliding element 40 and the coil assembly 30 are all arranged in the accommodating cavity 11, and the magnetic sliding element 40 is connected to the cavity wall of the accommodating cavity 11 in a sliding manner along the axial direction of the body 10; the lens element 20 is disposed on the magnetic sliding element 40 and changes with the change of the position of the magnetic sliding element 40, the coil assembly 30 is configured to generate a magnetic field force for driving the magnetic sliding element 40 to move along the axial direction of the body 10, the magnetic field force direction D1 is shown in fig. 1, so that the magnetic sliding element 40 drives the lens element 20 to move along the axial direction of the body 10, and thus, by generating a magnetic field force by the coil assembly 30, the magnetic sliding element 40 drives the lens element 20 to move along the axial direction of the body 10 in the accommodating cavity 11, automatic position adjustment of the lens element 20 in the lens device 100 is realized, and thus automatic zooming of the lens device 100 in a limited space is realized.
Further, the magnetic sliding member 40 is configured to drive the lens element 20 to slide back and forth in the accommodating cavity 11 along the axial direction of the body 10, so as to drive the lens element 20 to slide back and forth in the accommodating cavity 11 along the axial direction of the body 10, thereby achieving zoom adjustment required by different positions of the lens element 20 in the mounting cavity 11.
In one embodiment, the coil assembly 30 is located on one side or two sides of the magnetic slider 40 along the axial direction of the body 10, and the coil assembly 30 and the magnetic slider 40 can attract or repel each other, so that the magnetic slider 40 slides towards or away from the coil assembly 30 or between the coil assemblies 30 under the driving of the coil assembly 30.
In one embodiment, as shown in fig. 1, the coil assembly 30 includes a first coil 31 and a second coil 32, the first coil 31 and the second coil 32 are located on two sides of the magnetic sliding member 40 along the axial direction of the body 10, the first coil 31 is capable of generating a first magnetic force, the first coil 31 is capable of generating a second magnetic force, the first magnetic force direction D1 is the same as the second magnetic force direction D1; when the first coil 31 and the magnetic sliding member 40 are attracted or repelled to each other, and the second coil 32 and the magnetic sliding member 40 are repelled or attracted to each other, the magnetic sliding member 40 drives the lens element 20 to slide toward or away from the first coil 31 under the dual acting force of the first magnetic field force and the second magnetic field force, thereby effectively completing the automatic zooming of the lens element 20.
Specifically, when the first coil 31 and the magnetic sliding element 40 are mutually repulsive, the second coil 32 and the magnetic sliding element 40 are mutually attracted, and the magnetic sliding element 40 drives the lens element 20 to slide to a side close to the second coil 32 under the thrust action of the first magnetic field force and the suction action of the second magnetic field force, so as to complete automatic zooming in one situation; when the first coil 31 and the magnetic sliding member 40 are attracted to each other, the second coil 32 and the magnetic sliding member 40 repel each other, and the magnetic sliding member 40 drives the lens element 20 to slide toward the side close to the first coil 31 under the attraction of the first magnetic field force and the thrust of the second magnetic field force, thereby completing the automatic zooming under another condition.
In one embodiment, the magnetic sliding member 40 has a first pole 41 adjacent to the first coil 31 and a second pole 42 adjacent to the second coil 32, which are oppositely arranged along the axial direction of the accommodating cavity 11; when the first coil 31 and the first pole 41 are attracted or repelled to each other, the second coil 32 and the second pole 42 are repelled or attracted to each other, so that the magnetic sliding element 40 drives the lens element 20 to slide toward the direction close to the first coil 31 or the second coil 32 under the combined action of the first coil 31 and the second coil 32.
In one embodiment, the lens device 100 further includes a fixed slide rail 50, the fixed slide rail 50 is disposed between the magnetic sliding element 40 and the wall of the mounting cavity 11, and the magnetic sliding element 40 slides back and forth in the accommodating cavity 11 along the fixed slide rail 50 under the action of the coil assembly 30, so that the lens element 20 is adjusted more smoothly.
Specifically, the fixed slide rail 50 includes a first rail 51 and a second rail 52, the first rail 51 and the second rail 52 are disposed at two sides of the magnetic sliding element 40 along the radial direction of the body 10, and are symmetrically disposed on the cavity wall of the accommodating cavity 11 with the magnetic sliding element 40 as a reference, the magnetic assembly 40 is in sliding contact with the first rail 51 and the second rail 52, and slides in the accommodating cavity 11 in a reciprocating manner under the guiding action of the first rail 51 and the second rail 52.
In one embodiment, the lens device 100 further includes a magnetic excitation module 60, and the magnetic excitation module 60 is configured to provide different magnetic excitation signals to the coil assembly 30, so that the coil assembly 30 generates a magnetic force matched with the magnetic excitation signals, thereby controlling the distance and direction in which the magnetic slider 40 and the lens element 20 are moved.
Specifically, the magnetic excitation module 60 is a magnetic excitation circuit, and the magnetic excitation circuit can provide currents with different directions and magnitudes to the first coil 31 and the second coil 32, so that the coil assembly 30 forms different magnetic field forces, and further the magnetic sliding member 40 and the lens element 20 are controlled to move towards different directions and different distances, thereby achieving the purpose of automatic zooming.
It should be noted that a plurality of lens elements 20 may be disposed in the body 10 of the lens device 100 at the same time, the lens elements 20 are disposed in the accommodating cavity 11 at intervals and in parallel along the axial direction of the body 10, and the lens elements 20 cooperate to generate an image.
In one embodiment, the lens device 100 further includes an image sensing module 70, wherein the image sensing module 70 picks up images generated by the plurality of lens members 20 and transmits a control signal according to the sharpness of the images to control the magnetic excitation module 60 to provide different magnetic excitation signals to the coil assembly 30, so that the lens members 20 slide in the accommodating cavity 11 for zoom adjustment.
Specifically, the image sensing module 70 includes an image processor that picks up the image produced by the lens element 20 and a driver circuit that will analyze whether the image is sharp and the object distance is within the most reasonable focal distance. And then according to the analysis result, a corresponding control signal is given by a driving circuit to control the magnetic excitation module 60, and the magnetic excitation module 60 outputs an excitation signal to control the coil assembly 30, so that the purpose of automatic zooming is achieved.
Further, the lens device 100 provided by the present invention further includes an information processing module 80, configured to process information transmitted by the lens element 20 and transmit the information to the magnetic excitation module 60 and the image sensing module 70, and further process excitation signals and control signals sent by the magnetic excitation module 60 and the image sensing module 70 and transmit the excitation signals and the control signals to the lens element 20, so as to implement control and information transmission of the lens device 100.
In one embodiment, the body 10 is further provided with a lens 90, the lens 90 is disposed in the accommodating cavity 11, and the accommodating cavity 11 is sealed at a side of the body 10 away from the lens element 20, so as to protect the coil assembly 30, the lens element 20 and the magnetic sliding element 40 in the accommodating cavity 11 from water and dust.
Compared with the prior art, the automatic zoom lens device 100 provided by the invention has the advantages that the design is scientific and reasonable, the traditional manual zooming and even fixed focusing are abandoned, the automatic adjustment of the focal length in the limited space is realized by automatically changing the position of the lens piece 20 in the accommodating cavity 11 of the body 10, the automatic zooming is controllable, and the clear imaging effects at different distances can be obtained without changing the size of the lens device 100.
Further, since the lens element 20, the information processing module 80, the magnetic excitation module 60, and the image sensing module 70 form a closed-loop adjustment, the lens apparatus 100 of the present invention can also achieve a magnetic control auto-zoom function.
According to another aspect of the present invention, an industrial endoscope for inspection and observation of high temperature, toxic, nuclear radiation and places where human eyes cannot directly observe is provided, and for inspection of devices such as automobiles, aircraft engines, pipelines, mechanical parts, etc., and nondestructive inspection can be achieved without disassembly or destruction of assembly and equipment shutdown, comprising the lens apparatus 100 provided in any of the above embodiments.
The lens device 100 and the industrial endoscope in the above embodiments of the present invention have the following advantages:
(1) the magnetic coil assembly 30 generates a magnetic field force, and the magnetic field force enables the magnetic sliding piece 40 to drive the lens piece 20 to move in the accommodating cavity 11 along the axial direction of the body 10, so that the automatic position adjustment of the lens piece 20 in the lens device 100 is realized, and the automatic zooming of the lens device 100 in a limited space provided by the invention is realized;
(2) by arranging the first coil 31 to generate a first magnetic field force and the second coil 32 to generate a second magnetic field force, the magnetic sliding piece 40 drives the lens piece 20 to slide towards the direction close to or far away from the first coil 31 under the dual acting force of the first magnetic field force and the second magnetic field force, so that the automatic zooming of the lens piece 20 is effectively completed;
(3) by arranging the fixed slide rail 50 and arranging the fixed slide rail between the magnetic sliding part 40 and the wall of the mounting cavity 11, the magnetic sliding part 40 slides back and forth in the accommodating cavity 11 along the fixed slide rail 50 under the action of a magnetic field force, so that the adjustment of the lens piece 20 is smoother;
(4) by arranging the magnetic excitation module 60, different magnetic excitation signals can be provided for the coil assembly 30, so that the coil assembly 30 generates different magnetic field forces, thereby controlling the distance and the direction in which the lens element 20 is moved and adjusting different focal lengths;
(5) because the lens element 20, the information processing module 80, the magnetic excitation module 60 and the image sensing module 70 form closed-loop adjustment, the lens device 100 provided by the invention can also realize the magnetic control automatic zooming function quickly.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A lens apparatus, comprising:
the body is internally provided with an accommodating cavity;
the magnetic sliding piece is connected to the cavity wall of the accommodating cavity in an axially sliding mode along the body;
the lens piece is arranged on the magnetic sliding piece;
a coil assembly disposed in the accommodating cavity, wherein the coil assembly is configured to generate a magnetic force capable of driving the magnetic slider to move along the axial direction of the body.
2. The lens device according to claim 1, wherein the magnetic slider is configured to bring the lens member to slide reciprocally in the accommodation chamber along an axial direction of the body.
3. The lens apparatus according to claim 1, wherein the coil assembly and the magnetic slider are attracted to each other or repelled from each other.
4. The lens device according to claim 1, wherein the coil assembly is located on one side or both sides of the magnetic slider in an axial direction of the body.
5. The lens device according to claim 4, wherein the coil assembly includes a first coil and a second coil located on both sides of the magnetic slider in an axial direction of the body;
the first coil can generate a first magnetic force, the second coil can generate a second magnetic force, and the direction of the first magnetic force is the same as that of the second magnetic force;
when the first coil and the magnetic sliding piece are mutually attracted or repelled, the second coil and the magnetic sliding piece are mutually repelled or attracted.
6. The lens device according to claim 5, wherein the magnetic slider has a first pole and a second pole which are opposite to each other in the axial direction of the body;
when the first coil and the first pole are mutually attracted or mutually repelled, the second coil and the second pole are mutually repelled or mutually attracted.
7. The lens device as claimed in claim 1, wherein the lens device includes a magnetic excitation module configured to provide different magnetic excitation signals to the coil assembly to cause the coil assembly to generate a magnetic force matching the magnetic excitation signals.
8. The lens device according to claim 7, characterized in that the lens device further includes an image sensing module;
the image sensing module is used for picking up an image generated by the lens piece and transmitting a control signal according to the definition of the image so as to control the magnetic excitation module to provide different magnetic excitation signals for the coil assembly.
9. The lens device as claimed in claim 1, further comprising a lens disposed in the accommodating cavity and located on a side of the body away from the lens element.
10. An industrial endoscope, comprising the lens device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110046364.3A CN112684569A (en) | 2021-01-14 | 2021-01-14 | Lens device and industrial endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110046364.3A CN112684569A (en) | 2021-01-14 | 2021-01-14 | Lens device and industrial endoscope |
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| Publication Number | Publication Date |
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| CN112684569A true CN112684569A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110046364.3A Pending CN112684569A (en) | 2021-01-14 | 2021-01-14 | Lens device and industrial endoscope |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050108481A (en) * | 2004-05-11 | 2005-11-16 | 주식회사 팬택앤큐리텔 | Lens having function of zooming of camera using electromagnet and camera phone with the lens |
| CN101513339A (en) * | 2009-03-19 | 2009-08-26 | 上海交通大学 | Capsule endoscope with automatic focusing function |
| CN111897086A (en) * | 2020-09-01 | 2020-11-06 | 重庆金山医疗器械有限公司 | A zoom structure, zoom objective lens, zoom method and electronic endoscope |
| CN214097937U (en) * | 2021-01-14 | 2021-08-31 | 深圳市古安泰自动化技术有限公司 | Lens device and industrial endoscope |
-
2021
- 2021-01-14 CN CN202110046364.3A patent/CN112684569A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050108481A (en) * | 2004-05-11 | 2005-11-16 | 주식회사 팬택앤큐리텔 | Lens having function of zooming of camera using electromagnet and camera phone with the lens |
| CN101513339A (en) * | 2009-03-19 | 2009-08-26 | 上海交通大学 | Capsule endoscope with automatic focusing function |
| CN111897086A (en) * | 2020-09-01 | 2020-11-06 | 重庆金山医疗器械有限公司 | A zoom structure, zoom objective lens, zoom method and electronic endoscope |
| CN214097937U (en) * | 2021-01-14 | 2021-08-31 | 深圳市古安泰自动化技术有限公司 | Lens device and industrial endoscope |
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