Optical lens device for underwater polarization imaging

Abstract

The utility model discloses an optical lens device for underwater polarization imaging. The optical lens device comprises a front-end shell, a middle shell arranged on the back of the front-end shell, a tail-end shell arranged at one end, far away from the front-end shell, of the middle shell, a lens arranged on the front of the front-end shell, and a lens arranged on the front of the lens. The camera further comprises a strip frame, the strip frame is in an inverted L shape, the vertical part of the strip frame is located right in front of the lens, the front end of the horizontal part of the strip frame is provided with a cylindrical convex column, a support is arranged right above the surface of the lens, and the convex column is rotationally installed in the support. According to the utility model, the whole optical lens advances underwater for shooting, stains, sludge and the like are adhered to the surface of the lens, the motor works to drive the strip frame and the bristles to rotate, and the front ends of the bristles can be in contact with the surface of the lens in the rotating process of the bristles, so that the sludge and the stains adhered to the surface of the lens can be swept away, and the lens can always shoot a clear picture.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater optical lenses, in particular to an optical lens device for underwater polarization imaging. Background Art

[0002] Underwater imaging is a very meaningful task. Since polarization image information can provide physical characteristics such as surface characteristics, shielding and roughness of the detection target, the use of underwater polarization imaging can improve the recognition rate of underwater targets in cluttered backgrounds, and can identify targets that are difficult to detect with traditional underwater lens imaging technology, increase the imaging distance and detection depth, and improve the contrast and clarity of the image; some underwater mobile robots are equipped with optical lenses, which can capture underwater images for the mobile robots to analyze and judge the underwater situation and correct the route or underwater information.

[0003] However, many underwater environments are relatively turbid, with a lot of dirt, stains and plankton in the water. When these substances adhere to the surface of the underwater optical lens, they will block the surface of the optical lens, which will affect the underwater shooting of the optical lens. The existing processing method is mostly to take the optical lens out of the water and manually wipe the surface of the lens clean, but this operation is more troublesome and will also delay underwater shooting.

[0004] In view of the above problems, the present utility model is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an optical lens device for underwater polarization imaging, so as to solve the problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions.

[0007] The utility model provides an underwater polarization imaging optical lens device, comprising a front end housing, a middle housing is arranged on the back of the front end housing, a rear end housing is arranged at one end of the middle housing away from the front end housing, a lens is arranged on the front of the front end housing, and a lens is arranged on the front of the lens;

[0008] It also includes a frame, which is in an inverted "L" shape, the vertical portion of which is located directly in front of the lens, a cylindrical convex column is provided at the front end of the horizontal portion of the frame, a support is provided directly above the surface of the lens, and the convex column is rotatably installed in the support;

[0009] The inner surface of the vertical part of the frame is provided with a plurality of bristles, the plurality of bristles are perpendicular to the vertical part of the frame, and the plurality of bristles are evenly distributed along the width direction and the length direction of the vertical part of the frame at equal intervals;

[0010] One end of the bristles away from the strip frame is pressed against the surface of the lens, and the overall height of the plurality of bristles is consistent with the diameter of the lens.

[0011] Preferably, a through hole is provided on the support, the boss is inserted into the through hole, a driven gear is provided at the front end of the boss, a motor is also provided just above the surface of the lens, a driving gear is provided at the driving shaft end of the motor, and the driving gear meshes with the driven gear.

[0012] Preferably, the surface of the tail end shell is provided with external threads, and the central axes of the front end shell, the middle shell and the tail end shell overlap.

[0013] Preferably, the surface of the front end shell is further provided with a plurality of anti-skid convex strips, and the plurality of anti-skid convex strips are evenly distributed at equal intervals along the surface of the front end shell.

[0014] Preferably, the length of the vertical portion of the strip frame is consistent with the diameter of the lens.

[0015] Preferably, the outer surface of the vertical portion of the bar frame is sharp.

[0016] Preferably, a reinforcing rib plate is provided between the front end of the horizontal portion of the bar frame and the surface of the protruding column.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] Through the tail end shell and the external thread, the entire lens can be easily installed on the shooting equipment. When the entire lens is in an underwater environment, the lens can shoot underwater pictures. At this time, the frame and the bristles are horizontal or upward, and the frame and the bristles are not in the shooting picture of the lens. The lens and the lens can freely shoot underwater pictures.

[0019] As the entire optical lens moves underwater to shoot, the surface of the lens becomes sticky with stains and mud. The motor starts to work, driving the frame and the bristles to rotate. During the rotation, the front end of the bristles can contact the surface of the lens, sweeping away the mud and stains on the surface of the lens, allowing the lens to always capture clear images. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the utility model from one angle;

[0021] Figure 2 This is a three-dimensional diagram of the utility model from another angle;

[0022] Figure 3 It is a three-dimensional diagram of the bar frame of the utility model.

[0023] In the figure: 1, front end shell; 11, middle shell; 12, tail end shell; 13, external thread; 14, anti-skid convex strip; 15, lens; 151, support; 16, lens; 17, motor; 2, frame; 21, convex column; 22, bristles. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] like Figure 1-3 As shown, an optical lens device for underwater polarization imaging includes a front housing 1, a middle housing 11 is arranged on the back of the front housing 1, a rear housing 12 is arranged at one end of the middle housing 1 away from the front housing 1, a lens 15 is arranged on the front of the front housing 1, and a lens 16 is arranged on the front of the lens 15, and underwater images can be captured through the lens 15 and the lens 16;

[0027] The device further comprises a frame 2, which is in an inverted "L" shape. The vertical portion of the frame 2 is located directly in front of the lens 16. A cylindrical convex column 21 is provided at the front end of the horizontal portion of the frame 2. A support 151 is provided directly above the surface of the lens 15. The convex column 21 is rotatably mounted in the support 151. The support 151 supports the convex column 21 and the entire frame 2.

[0028] The inner surface of the vertical portion of the frame 2 is provided with a plurality of bristles 22, the plurality of bristles 22 are perpendicular to the vertical portion of the frame 2, and the plurality of bristles 22 are evenly distributed along the width direction and the length direction of the vertical portion of the frame 2 at equal intervals;

[0029] One end of the bristles 22 away from the strip frame 2 is pressed against the surface of the lens 16 . The overall height of the plurality of bristles 22 is consistent with the diameter of the lens 16 . The bristles 22 can cover the entire lens 16 .

[0030] A through hole is provided on the support 151, and the boss 21 is inserted into the through hole. The boss 221 can rotate in the through hole. A driven gear is provided at the front end of the boss 21. A motor 17 is also provided just above the surface of the lens 15. A driving gear is provided at the driving shaft end of the motor 17. The driving gear meshes with the driven gear. When the driven gear rotates, the boss 21 and the frame 2 rotate as a whole.

[0031] The surface of the tail end shell 12 is provided with an external thread 13 , and the central axes of the front end shell 1 , the middle shell 11 and the tail end shell 12 overlap, and the tail end shell 12 can be installed on the shooting host through the external thread 13 .

[0032] The surface of the front end housing 1 is further provided with a plurality of anti-skid convex strips 14 , and the plurality of anti-skid convex strips 14 are evenly distributed at equal intervals along the surface of the front end housing 1 .

[0033] The length of the vertical portion of the strip 2 corresponds to the diameter of the lens 16 .

[0034] The outer surface of the vertical portion of the bar frame 2 is sharp, so that when the bar frame 2 moves forward underwater, the water resistance is small.

[0035] A reinforcing rib plate is provided between the front end of the horizontal portion of the bar frame 2 and the surface of the convex column 21 , and the structural strength between the bar frame 2 and the convex column 21 is good.

[0036] In summary: when the motor 17 works, through the transmission of the driving gear, the driven gear and the convex column 21, the motor 17 can drive the frame 2 to rotate, and the bristles 22 can rotate along with the frame 2. During the rotation of the bristles 22, the front end of the bristles 22 can contact the surface of the lens 16, and can sweep away the mud and stains on the surface of the lens 16, so that the surface of the lens 16 is always kept clean, and the underwater image can be taken more clearly and accurately;

[0037] Through the tail end housing 12 and the external thread 13, the entire lens can be conveniently installed on the shooting equipment. When the entire lens is in an underwater environment, the lens 16 can shoot underwater images. At this time, the frame 2 and the bristles 22 are horizontal or facing upward, and the frame 2 and the bristles 22 are not in the shooting picture of the lens 16. The lens 15 and the lens 16 can freely shoot underwater pictures.

[0038] As the entire optical lens moves underwater to shoot, stains and mud are stuck on the surface of the lens 16. The motor 17 works to drive the frame 2 and the bristles 22 to rotate. The bristles 22 can brush away the mud and stains on the surface of the lens 16 during the rotation process, so that the lens 15 and the lens 16 can always capture clear pictures.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An optical lens device for underwater polarization imaging, characterized in that: It comprises a front end housing (1), an intermediate housing (11) is arranged on the back of the front end housing (1), a rear end housing (12) is arranged at one end of the intermediate housing (11) away from the front end housing (1), a lens (15) is arranged on the front of the front end housing (1), and a lens (16) is arranged on the front of the lens (15); It also comprises a frame (2), the frame (2) is in an inverted "L" shape, the vertical portion of the frame (2) is located directly in front of the lens (16), a cylindrical convex column (21) is provided at the front end of the horizontal portion of the frame (2), a support (151) is provided directly above the surface of the lens (15), and the convex column (21) is rotatably mounted in the support (151); The inner surface of the vertical part of the frame (2) is provided with a plurality of bristles (22), the plurality of bristles (22) are perpendicular to the vertical part of the frame (2), and the plurality of bristles (22) are evenly distributed at equal intervals along the width direction and the length direction of the vertical part of the frame (2); One end of the bristles (22) away from the strip frame (2) is pressed against the surface of the lens (16), and the overall height of the plurality of bristles (22) is consistent with the diameter of the lens (16).

2. The optical lens device for underwater polarization imaging according to claim 1, characterized in that: The support (151) is provided with a through hole, the boss (21) is inserted into the through hole, a driven gear is provided at the front end of the boss (21), a motor (17) is also provided just above the surface of the lens (15), a driving gear is provided at the driving shaft end of the motor (17), and the driving gear meshes with the driven gear.

3. The optical lens device for underwater polarization imaging according to claim 1, characterized in that: The surface of the tail end shell (12) is provided with an external thread (13), and the central axes of the front end shell (1), the middle shell (11) and the tail end shell (12) overlap.

4. The optical lens device for underwater polarization imaging according to claim 1, characterized in that: The surface of the front end housing (1) is also provided with a plurality of anti-skid convex strips (14), and the plurality of anti-skid convex strips (14) are evenly distributed at equal intervals along the surface of the front end housing (1).

5. The optical lens device for underwater polarization imaging according to claim 1, characterized in that: The length of the vertical portion of the strip frame (2) is consistent with the diameter of the lens (16).

6. The optical lens device for underwater polarization imaging according to claim 1, characterized in that: The outer surface of the vertical part of the bar frame (2) is sharp.

7. The optical lens device for underwater polarization imaging according to claim 1, characterized in that: A reinforcing rib plate is provided between the front end of the horizontal part of the bar frame (2) and the surface of the protruding column (21).

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