CN218956809U - Active imaging system - Google Patents
Active imaging system Download PDFInfo
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- CN218956809U CN218956809U CN202223527622.9U CN202223527622U CN218956809U CN 218956809 U CN218956809 U CN 218956809U CN 202223527622 U CN202223527622 U CN 202223527622U CN 218956809 U CN218956809 U CN 218956809U
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Abstract
The application belongs to the technical field of optical imaging systems, and particularly discloses an active imaging system capable of being used for long-distance imaging, which aims at solving the technical problems of complex structure and low integration degree of a traditional active illumination system. The active imaging system disclosed by the embodiment of the application comprises a light source, an emitting subsystem, a receiving subsystem and an imaging subsystem, wherein the light source is used for generating incident light, the emitting subsystem is used for adjusting the focal length and/or the direction of the incident light to enable the incident light to irradiate an object to be imaged, the receiving subsystem is used for receiving a light beam reflected by the object to be imaged, the imaging subsystem is used for receiving an optical signal emitted by the subsystem and generating an image signal according to the optical signal, and the emitting subsystem is detachably connected with the receiving subsystem. According to the active imaging system, the transmitting subsystem and the receiving subsystem are detachably connected, so that the transmitting subsystem and the receiving subsystem can be integrated together, the provided debugging difficulty is reduced, and the integration level of the whole active imaging system is improved.
Description
Technical Field
The application belongs to the technical field of optical imaging systems, and particularly relates to an active imaging system capable of being used for long-distance imaging.
Background
The laser active imaging has the advantages of high resolution, good anti-interference performance and the like, and is widely applied to the fields of investigation, guidance, navigation, mapping and the like. The traditional active lighting system adopts off-axis two-trans type, cassegrain type, transmission type and the like. The difficulty in assembling and adjusting the active illumination system based on the off-axis two-reflection type is extremely high, and the cost is high due to the matching of the large-caliber primary and secondary mirrors; the card-based active imaging system inevitably generates secondary mirror shielding, reduces the received energy, needs to be matched with an active illumination laser with higher power, and has the weight of the whole machine obviously higher than that of a transmission form; in the conventional transmission type active illumination system, the receiving aperture of the first surface is affected by the F number, so that the first surface is extremely difficult to be large, and a plurality of large-aperture optical materials are required to correct aberration, so that the processing difficulty is high, and the cost is high. At present, an active illumination imaging system which can be provided with large caliber, light weight and easy adjustment is not found, and long-distance and high-resolution illumination imaging is realized.
Disclosure of Invention
The embodiment of the application provides an active imaging system, which aims to solve the technical problems of complex structure and low integration degree of the traditional active illumination system.
An active imaging system provided in an embodiment of the present application includes
A light source for generating incident light,
an emission subsystem for adjusting the focal length and/or direction of the incident light to make the incident light irradiate the object to be imaged,
a receiving subsystem for receiving the light beam reflected by the object to be imaged,
an imaging subsystem for receiving the light signal emitted from the subsystem and generating an image signal based on the light signal,
wherein the transmitting subsystem is detachably connected with the receiving subsystem.
According to an embodiment of the present application, the emission subsystem includes a mirror module and a focus adjustable module,
the reflector module is used for reflecting incident light generated by the light source to the focusing module,
the focusing module is used for enabling energy of incident light to act on an object to be imaged.
According to any of the foregoing embodiments of the present application, the mirror module includes a mirror, a mirror mount and a mirror lift,
the reflector lifting seat is detachably arranged on the receiving subsystem, the height of the reflector lifting seat can be adjusted,
the reflector mounting seat is rotatably arranged on the reflector lifting seat,
the reflector is arranged on the reflector mounting seat.
According to any of the foregoing embodiments of the present application, the mirror mount may be rotated 360 ° in a plane perpendicular to the mirror lift.
According to any of the foregoing embodiments of the present application, the mirror lift base includes a connecting rod, a sleeve connecting rod and a base,
the base is removably mounted to the receiving subsystem,
the sleeve connecting rod is arranged on the base,
one end of the connecting rod is inserted into the sleeve connecting rod and is connected with the sleeve connecting rod in a relatively movable way,
the reflector mount pad is installed at the other end of connecting rod.
According to any of the foregoing embodiments of the present application, the focusing module includes a focusing barrel and a barrel mount,
the lens barrel mounting base is detachably mounted on the receiving subsystem,
the focusing lens barrel is arranged on the lens barrel mounting seat,
the focusing lens barrel comprises a front lens barrel and a rear lens barrel which are arranged along the transmission direction of incident light, the front lens barrel and the rear lens barrel are connected in a relatively movable manner along the direction of a cylinder shaft,
a first lens is installed in the front lens barrel, a second lens is installed in the rear lens barrel,
the distance between the first lens and the second lens is adjusted by relatively moving the front barrel and the rear barrel.
According to any of the embodiments described above, the outer wall of the front barrel is provided with an external thread, the inner wall of the rear lens is provided with an internal thread, and the relatively movable connection between the rear barrel and the front barrel is realized by the cooperation of the external thread and the internal thread.
According to any of the foregoing embodiments of the present application, the receiving subsystem includes a receiving lens barrel, a third lens is mounted at an object side end of the receiving lens barrel, a fourth lens group is mounted at an image side end of the receiving lens barrel,
from the object side to the image side, the inner diameter of the receiving barrel gradually decreases or stepwise decreases.
According to any of the preceding embodiments of the present application, the receiving subsystem further comprises a lens press for providing a pressing force towards the image side end to the third lens, the object side facing surface of the lens press comprising an annular wedge-shaped annulus,
from the object side to the image side, the inner diameter of the wedge-shaped annulus gradually decreases.
According to any of the foregoing embodiments of the present application, the active imaging system further includes a focusing barrel, one end of the focusing barrel is sleeved with the receiving lens barrel, the other end of the focusing barrel is sleeved with the imaging subsystem, the sleeve depth between the receiving lens barrel and the focusing barrel is adjustable, and the sleeve depth between the imaging subsystem and the focusing barrel is adjustable.
According to any of the embodiments described above, the receiving lens barrel is connected to the focusing barrel by a thread, the imaging subsystem is connected to the focusing barrel by a thread, and the rotation direction of the thread of the focusing barrel connected to the receiving lens barrel is opposite to the rotation direction of the thread of the focusing barrel connected to the imaging subsystem.
According to any one of the embodiments, the focusing barrel is connected with the receiving lens barrel through an internal thread, the focusing barrel is connected with the imaging subsystem through an external thread, a compression ring is sleeved on the periphery of one end, connected with the imaging subsystem, of the focusing barrel, and the compression ring is in threaded connection with the focusing barrel.
According to the active imaging system, the transmitting subsystem and the receiving subsystem are detachably connected, so that the transmitting subsystem and the receiving subsystem can be integrated together, the provided debugging difficulty is reduced, and the integration level of the whole active imaging system is improved.
Drawings
FIG. 1 is a schematic diagram of an active imaging system provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of an active imaging system according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a mirror module of an active imaging system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a focusing module of the active imaging system according to the embodiment of the present application;
FIG. 5 is a schematic diagram of a receiving subsystem of an active imaging system according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a receiving subsystem and imaging subsystem combined of an active imaging system according to an embodiment of the present application;
FIG. 7 is a schematic structural view of a clamping ring of an active imaging system provided in an embodiment of the present application;
fig. 8 is a schematic diagram of a connection structure of a focusing barrel of an active imaging system according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative of the application and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.
The active imaging system 100 disclosed in the present application can image a remote target, referring to fig. 1 and 2, the active imaging system 100 disclosed in the embodiments of the present application includes a light source 1, a transmitting subsystem 2, a receiving subsystem 3 and an imaging subsystem 4 along a propagation direction of a light path; wherein the light source 1 is used for generating incident light; the emission subsystem 2 is used for adjusting the focal length of incident light and also can be used for adjusting the direction of the incident light so as to enable the incident light to irradiate an object to be imaged; the receiving subsystem 3 is used for receiving the light beam reflected by the object to be imaged and imaging the object to be imaged; the imaging subsystem 4 is used for receiving the optical signals emitted by the subsystem and generating image signals according to the optical signals; wherein the transmitting subsystem 2 is detachably connected with the receiving subsystem 3. It can be appreciated that by detachably connecting the transmitting subsystem 2 and the receiving subsystem 3, the transmitting subsystem 2 and the receiving subsystem 3 can be integrated together, reducing the debugging difficulty provided and improving the integration level of the whole active imaging system 100; in addition, by integrating the active illumination part (the emitting subsystem 2) and the receiving illumination part (the receiving subsystem 3), the weight of the system can be well reduced in a receiving-transmitting integrated mode, and the problems that an illumination area is not matched with a receiving area and the like are avoided.
In practical application, the incident light generated by the light source 1 irradiates the object to be imaged through the adjustment/adjustment of the emission subsystem 2, and after diffuse reflection of the object to be imaged, part of the light beam enters the receiving subsystem 3, the receiving subsystem 3 can image the object to be imaged, and the imaging subsystem 4 can convert the light signal into an image signal.
In some embodiments, the light source 1 may be a laser light source 1, the laser light source 1 having the advantage of being energy efficient.
In some embodiments, the imaging subsystem 4 may be a CCD camera.
Referring to fig. 1-4, in some embodiments, along the propagation direction of the optical path, the emission subsystem 2 includes a mirror module 21 and an adjustable focus module 22; wherein the reflector module 21 is used for reflecting incident light generated by the light source 1 to the focusing module 22; the focusing module 22 is used to enable the energy of the incident light to act on the object to be imaged. It can be appreciated that by providing the mirror module 21, the degree of freedom of the mounting position of the light source 1 is increased; by arranging the focusing module 22, the energy of the incident light generated by the light source 1 is more concentrated to act on the object to be imaged, so that the energy of the light beam diffusely reflected from the object to be imaged can be ensured, and the resolution of imaging is further ensured.
The height and angle of the mirror 211 are adjustable, and various mechanisms for realizing the adjustment are provided, for example, referring to fig. 3, the mirror module 21 includes a mirror 211, a mirror mounting seat 212 and a mirror lifting seat 213; wherein, the reflector lifting seat 213 is detachably arranged on the receiving subsystem 3, and the height of the reflector lifting seat 213 is adjustable; the mirror mounting base 212 is rotatably mounted on the mirror lifting base 213; the mirror 211 is mounted on a mirror mount 212. It can be understood that the height of the mirror 211 can be adjusted by the mirror lifting base 213, and the angle of the mirror 211 can be adjusted by rotating the mirror mounting base 212; thereby making the installation position of the light source 1 more flexible and improving the degree of freedom of the entire active imaging system 100.
Of course, the mirror 211 may be directly mounted on a moving mechanism having six degrees of freedom, so that the mirror 211 can be moved in the direction X, Y, Z, and the angle of the mirror 211 itself can be adjusted.
Referring to fig. 3, in some embodiments, the mirror mount 212 can rotate 360 ° in a plane perpendicular to the mirror lift base 213. It will be appreciated that this form of mirror mount 212 allows 360 rotation of mirror 211.
Referring to fig. 3, in some embodiments, the mirror lift base 213 includes a connecting rod 2131, a sleeve connecting rod 2132, and a base 2133; the base 2133 is detachably arranged on the receiving subsystem 3, the sleeve connecting rod 2132 is of a cylindrical structure and is arranged on the base 2133; one end of the connecting rod 2131 is inserted into the sleeve connecting rod 2132 and connected to the sleeve connecting rod 2132 so as to be movable relative to each other, and the mirror mount 212 is attached to the other end of the connecting rod 2131. It will be appreciated that the height of the mirror mount 212 can be adjusted by moving the connecting rod 2131 relative to the sleeve connecting rod 2132 by an external force. For example, the sleeve link 2132 and the link 2131 may be screwed together, the inner wall of the sleeve link 2132 has an internal thread, the outer wall of the link 2131 has an external thread, and the link 2131 may be moved relative to the sleeve link 2132 by rotating the link 2131 by an external force, thereby adjusting the height of the mirror mount 212. Of course, the connecting rod 2131 may be inserted directly into the sleeve connecting rod 2132, with the position between the connecting rod 2131 and the sleeve connecting rod 2132 being defined by a set screw.
Referring to fig. 4, in some embodiments, the focusing module 22 includes a focusing lens barrel 221 and a lens barrel mount 222; the lens barrel mount 222 is detachably mounted on the receiving subsystem 3, for example, the lens barrel mount 222 may be mounted on the receiving subsystem 3 by screws; the focusing lens barrel 221 is mounted on the lens barrel mount 222; the focusing barrel 221 includes a front barrel 2211 and a rear barrel 2212 provided along the direction of propagation of incident light, the front barrel 2211 and the rear barrel 2212 being relatively movably connected, preferably, the front barrel 2211 and the rear barrel 2212 are relatively movably connected in the barrel axis direction of the focusing barrel 221; a first lens L1 is mounted in the front barrel 2211, and a second lens L2 is mounted in the rear barrel 2212; the purpose of adjusting the distance between the first lens L1 and the second lens L2 can be achieved by relatively moving the front barrel 2211 and the rear barrel 2212; the distance between the first lens L1 and the second lens L2 changes, and the focal length of the entire focusing module 22 changes.
Referring to fig. 4, in some embodiments, the front lens barrel 2211 and the rear lens barrel 2212 are connected by a threaded connection, the front lens barrel 2211 can be screwed into the rear lens barrel 2212, an external thread is provided on an outer wall of the front lens barrel 2211, an internal thread is provided on an inner wall of the rear lens barrel, and a relatively movable connection between the rear lens barrel 2212 and the front lens barrel 2211 is achieved by matching the external thread and the internal thread. Of course, the rear barrel 2212 may be optionally disposed in the front barrel 2211, the outer wall of the rear barrel 2212 may be provided with external threads, and the inner wall of the front barrel 2211 may be provided with internal threads. By means of the threaded connection, the distance between the first lens L1 and the second lens L2 can be precisely adjusted.
In order to ensure stability between the adjustment of the rear front barrel 2211 and the rear barrel 2212, a threaded hole is provided in the wall of the rear barrel 2212, and a locking screw is screwed into the threaded hole, so that the front barrel 2211 and the rear barrel 2212 can be locked by tightening the screw when the relative position of the front barrel 2211 and the rear barrel 2212 does not need to be adjusted.
Referring to fig. 5 to 7, in some embodiments, the receiving subsystem 3 includes a receiving lens barrel 31, a third lens L3 is mounted at an object side end (an end facing an object to be imaged) of the receiving lens barrel 31, a fourth lens group L4 is mounted at an image side end (an end facing the imaging subsystem 4) of the receiving lens barrel 31, and an inner diameter of the receiving lens barrel 31 gradually decreases or stepwise decreases from an object side (the side where the object to be imaged is located) to an image side (the side where the imaging subsystem 4 is located). It can be understood that the inner diameter of the receiving lens barrel 31 is gradually reduced, so that the path of the light path is gradually narrowed, and part of light is reflected when irradiated onto the inner wall of the receiving lens barrel 31, and the receiving lens barrel 31 with the structure can ensure that diffuse reflection light within a certain range is just received, thereby playing a role in eliminating stray light.
In some embodiments, the third lens L3 may be a micro-nano optical element, and a micro-nano structure is disposed on a surface of the third lens. The micro-nano optical element-based large-caliber transceiver integrated active imaging system 100 can effectively integrate the advantages of various active illumination systems. Firstly, the micro-nano optical element has incomparable advantages in the optimization process of a narrow bandwidth optical system, and can meet the requirements of light beam shrinkage, partial aberration elimination and the like which can be achieved by a plurality of traditional optical lenses only by adopting one micro-nano optical element in a large-caliber optical system. In addition, the transmission form of the micro-nano optical element is adopted, so that the disadvantages of difficult assembly and adjustment, heavy weight, high cost and the like brought by a reflective active illumination imaging system can be avoided.
Referring to fig. 7, in some embodiments, the receiving subsystem 3 further includes a lens pressing ring 32, where the lens pressing ring 32 is configured to provide a pressing force toward the image side end to the third lens L3, the lens pressing ring 32 may be screwed with the receiving lens barrel 31, and after the third lens L3 is mounted on the receiving lens barrel 31 through the lens mount, the lens pressing ring 32 is screwed into the receiving lens barrel 31 to press the third lens L3; the object-side facing surface of the lens presser 32 includes an annular wedge-shaped annular surface 321, and the inner diameter of the wedge-shaped annular surface 321 gradually decreases from the object side to the image side. It can be understood that an optical stop can be formed by the wedge-shaped annular surface 321, so that the receiving lens barrel 31 is ensured to receive diffuse reflection light within a certain range, and the stray light is eliminated.
It can be appreciated that the effect of eliminating stray light of the whole receiving barrel 31 can be improved by combining the wedge-shaped annular surface 321 with the receiving barrel 31 having the inner diameter gradually reduced.
Referring to fig. 6 and 8, in some embodiments, the active imaging system 100 further includes a focusing barrel 5, one end of the focusing barrel 5 is sleeved with the receiving lens barrel 31, the other end of the focusing barrel 5 is sleeved with the imaging subsystem 4, the sleeve depth between the receiving lens barrel 31 and the focusing barrel 5 is adjustable, and the sleeve depth between the imaging subsystem 4 and the focusing barrel 5 is adjustable. It can be understood that by adjusting the socket depth between the receiving lens barrel 31 and the focusing barrel 5 and the socket depth between the imaging subsystem 4 and the focusing barrel 5, the distance between the receiving lens barrel 31 and the imaging subsystem 4 can be changed, so that the purpose of focusing can be achieved. The receiving lens barrel 31 may be sleeved outside the focusing barrel 5, and of course, the focusing barrel 5 may also be sleeved outside the receiving lens barrel 31; likewise, the imaging subsystem 4 may be sleeved outside the focusing barrel 5, and of course, the focusing barrel 5 may also be sleeved outside the imaging subsystem 4.
Referring to fig. 8, in some embodiments, the focusing barrel 5 has a light path inside, and the focusing barrel 221 includes two sections, one section is used for connecting with the receiving barrel 31, and the other section is used for connecting with the imaging subsystem 4; the receiving lens barrel 31 and the focusing barrel 5 can be connected through threads, the imaging subsystem 4 and the focusing barrel 5 are also connected through threads, and the rotation direction of the threads of the focusing barrel 5 connected with the receiving lens barrel 31 is opposite to the rotation direction of the threads of the focusing barrel 5 connected with the imaging subsystem 4. For example, an external thread is provided on the outer wall of the receiving barrel 31, and an internal thread provided on the inner wall of the end of the focusing barrel 5 connected to the receiving barrel 31 is provided, the pitch is selected to be 0.5mm, and the thread is designed as a right-handed thread, i.e., is screwed clockwise; the outer wall of one end of the focusing cylinder 5 connected with the imaging subsystem 4 is provided with external threads matched with the internal threads arranged on the inner wall of the imaging subsystem 4, the pitch is also 0.5mm, and the threads are designed to be left-handed threads, namely, the threads are screwed anticlockwise; based on this structure, if focusing is required to be 1mm, the focusing barrel 5 and the imaging subsystem 4 can rotate for one turn respectively, so that the imaging subsystem 4 is still in a horizontal position.
Of course, an external thread may be provided on the outer wall of the receiving sleeve, and an internal thread may be provided on the inner wall of the focusing barrel 5 for connection with the receiving barrel 31; external threads are arranged on the outer wall of the imaging subsystem 4, and external threads are arranged on the outer wall of a section of the focusing cylinder 5 used for being connected with the imaging subsystem 4.
Preferably, the focusing cylinder 5 is connected with the receiving lens barrel 31 through an internal thread arranged on the inner wall of the focusing cylinder 5, the focusing cylinder 5 is connected with the imaging subsystem 4 through an external thread arranged on the outer wall of the focusing cylinder 5, a pressing ring 6 is sleeved on the periphery of one section/end of the focusing cylinder 5 connected with the imaging subsystem 4, the pressing ring 6 is in threaded connection with the focusing cylinder 5, the pressing ring 6 is positioned between the receiving lens barrel 31 and the imaging subsystem 4, and when the relative position between the imaging subsystem 4 and the receiving lens barrel 31 is not required to be adjusted, the pressing ring 32 can be screwed in the direction of the imaging subsystem 4, so that the imaging subsystem 4 is pressed tightly, and the stability of the imaging subsystem 4 is ensured.
Claims (12)
1. An active imaging system, characterized by: comprising
A light source for generating incident light,
an emission subsystem for adjusting the focal length and/or direction of the incident light to make the incident light irradiate the object to be imaged,
a receiving subsystem for receiving the light beam reflected by the object to be imaged,
an imaging subsystem for receiving the light signal emitted from the receiving subsystem and generating an image signal according to the light signal,
wherein the transmitting subsystem is detachably connected with the receiving subsystem.
2. The active imaging system of claim 1, wherein: the emission subsystem comprises a reflector module and a focusing module capable of adjusting focal length,
the reflector module is used for reflecting incident light generated by the light source to the focusing module,
the focusing module is used for enabling energy of incident light to act on an object to be imaged.
3. The active imaging system of claim 2, wherein: the reflector module comprises a reflector, a reflector mounting seat and a reflector lifting seat,
the reflector lifting seat is detachably arranged on the receiving subsystem, the height of the reflector lifting seat is adjustable,
the reflector mounting seat is rotatably arranged on the reflector lifting seat,
the reflector is mounted on the reflector mounting seat.
4. The active imaging system of claim 3, wherein: the reflector mounting seat can rotate 360 degrees in a plane perpendicular to the reflector lifting seat.
5. The active imaging system of claim 3, wherein: the reflector lifting seat comprises a connecting rod, a sleeve connecting rod and a base,
the base is removably mounted to the receiving subsystem,
the sleeve connecting rod is arranged on the base,
one end of the connecting rod is inserted into the sleeve connecting rod and is connected with the sleeve connecting rod in a relatively movable way,
the reflector mounting seat is mounted at the other end of the connecting rod.
6. The active imaging system of claim 2, wherein: the focusing module comprises a focusing lens barrel and a lens barrel mounting seat,
the lens barrel mounting base is detachably mounted on the receiving subsystem,
the focusing lens barrel is arranged on the lens barrel mounting seat,
the focusing lens barrel comprises a front lens barrel and a rear lens barrel which are arranged along the transmission direction of incident light, the front lens barrel and the rear lens barrel are connected in a relatively movable manner along the cylinder axis direction,
a first lens is installed in the front barrel, a second lens is installed in the rear barrel,
the distance between the first lens and the second lens is adjusted by relatively moving the front barrel and the rear barrel.
7. The active imaging system of claim 6, wherein: the outer wall of the front lens cone is provided with external threads, the inner wall of the rear lens cone is provided with internal threads, and the relative movable connection between the rear lens cone and the front lens cone is realized through the cooperation of the external threads and the internal threads.
8. The active imaging system of claim 1, wherein: the receiving subsystem comprises a receiving lens barrel, a third lens is arranged at the object side end of the receiving lens barrel, a fourth lens group is arranged at the image side end of the receiving lens barrel,
from the object side to the image side, the inner diameter of the receiving barrel gradually decreases or stepwise decreases.
9. The active imaging system of claim 8, wherein: the receiving subsystem further comprises a lens press ring for providing a pressing force towards an image side end to the third lens, the object side facing surface of the lens press ring comprising an annular wedge-shaped annulus,
from the object side to the image side, the inner diameter of the wedge-shaped ring surface gradually decreases.
10. The active imaging system of claim 8, wherein: the imaging device comprises an imaging subsystem, a receiving lens barrel, a focusing barrel, an imaging subsystem and an imaging subsystem, and is characterized by further comprising the focusing barrel, wherein one end of the focusing barrel is sleeved with the receiving lens barrel, the other end of the focusing barrel is sleeved with the imaging subsystem, the sleeve joint depth between the receiving lens barrel and the focusing barrel is adjustable, and the sleeve joint depth between the imaging subsystem and the focusing barrel is adjustable.
11. The active imaging system of claim 10, wherein: the receiving lens barrel is connected with the focusing barrel through threads, the imaging subsystem is connected with the focusing barrel through threads, and the rotation direction of threads of the focusing barrel connected with the receiving lens barrel is opposite to that of threads of the focusing barrel connected with the imaging subsystem.
12. The active imaging system of claim 11, wherein: the focusing barrel is connected with the receiving lens barrel through internal threads, the focusing barrel is connected with the imaging subsystem through external threads, a compression ring is sleeved on the periphery of one end, connected with the imaging subsystem, of the focusing barrel, and the compression ring is in threaded connection with the focusing barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223527622.9U CN218956809U (en) | 2022-12-29 | 2022-12-29 | Active imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223527622.9U CN218956809U (en) | 2022-12-29 | 2022-12-29 | Active imaging system |
Publications (1)
| Publication Number | Publication Date |
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| CN218956809U true CN218956809U (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223527622.9U Active CN218956809U (en) | 2022-12-29 | 2022-12-29 | Active imaging system |
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| Country | Link |
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| CN (1) | CN218956809U (en) |
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2022
- 2022-12-29 CN CN202223527622.9U patent/CN218956809U/en active Active
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