CN215017010U - Stereoscopic endoscope optical system - Google Patents
Stereoscopic endoscope optical system Download PDFInfo
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- CN215017010U CN215017010U CN202121126763.2U CN202121126763U CN215017010U CN 215017010 U CN215017010 U CN 215017010U CN 202121126763 U CN202121126763 U CN 202121126763U CN 215017010 U CN215017010 U CN 215017010U
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- 238000003384 imaging method Methods 0.000 abstract description 12
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
- A61B1/00193—Optical arrangements adapted for stereoscopic vision
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
- A61B1/0676—Endoscope light sources at distal tip of an endoscope
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres
Abstract
The utility model relates to a three-dimensional endoscope optical system, it has solved the camera module of solving the three-dimensional endoscope system of current optics and has been difficult to be adjusted to accurate position, and three-dimensional endoscope light path structure is complicated, and the equipment degree of difficulty is big, the technical problem that the imaging effect is poor, it includes optics three-dimensional endoscope, optics three-dimensional endoscope camera module, image processing unit, host computer, 3D display, image processing unit is connected with the host computer, and the 3D display is connected with the host computer; the optical three-dimensional endoscope camera module is electrically connected with the image processing module. The utility model discloses extensively be used for minimal access surgery technical field.
Description
Technical Field
The utility model relates to a medical instrument technical field of minimal access surgery particularly, relates to a three-dimensional endoscope optical system.
Background
In recent years, minimally invasive surgery has become more and more widely applied due to the characteristics of small wound, quick recovery and good effect, in the traditional endoscopic surgery, a doctor performs the surgery by observing a 2D image, the difficulty of the surgery operation is high due to the lack of stereoscopic impression, and the precision of the surgery operation is difficult to ensure. The three-dimensional endoscope can well solve the problems, the focus can be observed more visually, the operation time can be shortened, the pain of a patient is reduced, the use requirements of doctors are met, the operation difficulty of the doctors is greatly reduced, and the operation precision is improved.
At present, three-dimensional endoscopes on the domestic market are few, the optical three-dimensional endoscope is more suitable for minimally invasive surgery due to the fact that the optical three-dimensional endoscope has a large depth of field range and a large field range, optical parts in the optical three-dimensional endoscope are many, the optical path structure is complex, the requirement on the machining size of the optical parts is high, the assembling difficulty is high, and the external imaging effect is poor, so that the endoscope which is compact in structure and simple in assembling process and ensures consistent and clear imaging is important for the field of minimally invasive surgery and is also important for a minimally invasive surgery robot.
At present, a three-dimensional endoscope is divided into an electronic endoscope and an optical endoscope, although the optical dual-light-path endoscope is complex in structure, the optical dual-light-path endoscope has a large depth of field range and a large field angle and better accords with the characteristics of double-pupil observation of a human body, clear images are obtained through the optical dual-light-path endoscope, except that optical elements in the endoscope meet requirements, a camera module is required to accurately receive optical signals captured by the endoscope, and the camera module is required to receive different optical signals of different endoscopes due to the fact that a plurality of optical elements are complex in structure, and therefore the position of a camera head is required to be adjusted to obtain the clear images in the assembling process. However, the existing camera module is difficult to be adjusted to an accurate position.
Disclosure of Invention
The utility model is a camera module for solving current optics three-dimensional endoscope system is hardly adjusted to accurate position, and three-dimensional endoscope light path structure is complicated, and the equipment degree of difficulty is big, and the poor technical problem of formation of image effect provides a three-dimensional endoscope optical system.
The utility model provides a stereoscopic endoscope optical system, including optics three-dimensional endoscope, optics three-dimensional endoscope camera module, image processing unit, host computer, 3D display, image processing unit is connected with the host computer, and the 3D display is connected with the host computer; the optical three-dimensional endoscope camera module is electrically connected with the image processing module;
the optical three-dimensional endoscope comprises a lens, a left objective lens protection window, a right objective lens protection window, an outer tube, an optical fiber bundle, a middle tube, an inner tube, a left light path device, a right light path device, a relay prism, a lens base and a shell;
the lens is fixedly connected with the front end of the outer tube, the two middle tubes are symmetrically arranged in the outer tube in parallel along the axial direction, and the two inner tubes are respectively arranged in the two middle tubes; the left light path device and the right light path device are respectively arranged in the two inner pipes;
an inclined plane is arranged on the outer side of the lens, two parallel light path through holes are formed in the middle of the inclined plane of the lens, an upper illumination outlet and a lower illumination outlet are formed in the inclined plane of the lens, and the upper illumination outlet and the lower illumination outlet are located on two sides of the light path through holes;
the left objective lens protection window and the right objective lens protection window are respectively connected with the two light path through holes of the lens;
the shell is provided with a through hole, and the rear end of the outer tube is inserted into the through hole of the shell;
the lens base is fixedly connected with the shell and is provided with a prism chamber, a beam hole and two through holes; the front ends of the two middle pipes are respectively inserted into the two light path through holes of the lens, and the rear ends of the two middle pipes are respectively inserted into the two through holes of the lens base;
one part of the front end of the optical fiber bundle is arranged in the upper illumination outlet of the lens, and the other part of the front end of the optical fiber bundle is arranged in the lower illumination outlet; the rear end of the optical fiber bundle is arranged in a beam hole of the lens base;
the image transfer prism is connected to the prism chamber of the lens base;
the optical three-dimensional endoscope camera module comprises two camera adjusting frames, two cameras and a shell;
the camera adjusting frame is fixedly connected with the shell;
the middle part of the camera adjusting frame is provided with a rectangular through hole for mounting a camera, the top of the camera adjusting frame is provided with a plurality of screw holes, the left side of the camera adjusting frame is provided with a plurality of screw holes, and the right side of the camera adjusting frame is provided with a plurality of screw holes; the bottom of the camera adjusting frame is provided with a plurality of screw holes;
the two cameras are arranged in the rectangular through hole of the camera adjusting frame side by side, the set screw penetrates through the screw hole on the left side of the bottom of the camera adjusting frame and then abuts against the bottom surface of the left camera, the set screw penetrates through the screw hole on the left side of the camera adjusting frame and then abuts against the side surface of the left camera, and the set screw penetrates through the screw hole on the left side of the top of the camera adjusting frame and then abuts against the top surface of the left camera; the set screw penetrates through a screw hole on the right side of the bottom of the camera adjusting frame and then abuts against the bottom surface of the right camera, the set screw penetrates through a screw hole on the right side of the camera adjusting frame and then abuts against the side surface of the right camera, and the set screw penetrates through a screw hole on the right side of the top of the camera adjusting frame and then abuts against the top surface of the right camera;
the lens base is connected with the camera adjusting frame;
preferably, the optical three-dimensional endoscope camera module further comprises two camera connecting sleeves; the camera connecting sleeve comprises a body and a lens cone, wherein the body is provided with an external thread, and the external thread of the body is connected with the thread on the camera.
Preferably, the optical three-dimensional endoscope camera module further comprises a positioning plate and an insulating plate, wherein the insulating plate is positioned between the positioning plate and the camera adjusting frame; the positioning plate is of a circular plate structure and is provided with two light ray holes, one lighting hole and two positioning blocks which are symmetrically distributed, the positioning blocks are provided with threaded holes, and the positioning blocks are matched with the positioning grooves of the insulating plate and are fixedly connected through screws;
the insulation board is provided with a transverse light port, a light guide beam fixing hole, two symmetrically distributed counter bores and two positioning grooves, and the insulation board is connected and fixed with the camera adjusting frame by penetrating screws through the counter bores.
The beneficial effects of the utility model are that, optics three-dimensional endoscope compact structure, it is small, the size is little, and assembly process is simple quick. The imaging effect is good, and the imaging is consistent and clear. The spatial position of the camera can be accurately adjusted, the operation is simple, and the installation and the disassembly are convenient.
Further features of the invention will be apparent from the description of the embodiments which follows.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the optical three-dimensional endoscope of the present invention;
fig. 2 is an exploded view of the optical three-dimensional endoscope of the present invention;
FIG. 3 is a view showing the structure of FIG. 1, in which a lens 1 is connected to an outer tube 2;
FIG. 4 is a schematic structural diagram of a lens;
FIG. 5 is a schematic structural view of the lens holder;
FIG. 6 is a schematic structural view of the lens holder;
FIG. 7 is a schematic structural view of the housing;
FIG. 8 is a schematic structural diagram of a left optical path device and a right optical path device;
FIG. 9 is a schematic view of the sealing cap;
FIG. 10 is a perspective view of a relay prism;
FIG. 11 is a perspective view of a relay prism;
FIG. 12 is an exploded view of an optical three-dimensional endoscope camera module;
FIG. 13 is a schematic view of the positioning plate;
FIG. 14 is a schematic view of the locking ring;
FIG. 15 is a schematic view of the structure of an insulating plate;
fig. 16 is a schematic structural view of a camera fixing frame;
fig. 17 is a schematic structural view of a camera connecting sleeve.
FIG. 18 is an assembled view of the optical three-dimensional endoscope camera module of FIG. 12;
FIG. 19 is a schematic view of the camera mounting positioning into the camera adjustment frame;
FIG. 20 is a side view of the structure shown in FIG. 19;
FIG. 21 is a diagram showing the positional relationship between the positioning plate and the camera adjustment frame;
FIG. 22 is a schematic view of the endoscope and camera module mounted together;
fig. 23 is a schematic structural view of a camera adjustment frame.
Description of the symbols in the drawings
1. The optical lens comprises a lens, 2, an outer tube, 3, an outer shell, 4, a lens base, 5, a sealing cover, 6, a relay prism, 7, an optical fiber bundle, 8, a left objective lens protection window, 9, a left optical path device, 10, a middle tube and 11, an inner tube;
B1. the camera comprises a positioning plate, a B2 locking ring, a B3 insulating plate, an B4. camera adjusting frame, a B5. camera connecting sleeve, a B6. camera and a B7. shell.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of the preferred embodiments with reference to the accompanying drawings.
The utility model provides a three-dimensional endoscope optical system includes optics three-dimensional endoscope, optics three-dimensional endoscope camera module, image processing unit, host computer, 3D display, and image processing unit is connected with the host computer, and the 3D display is connected with the host computer, and the display shows three-dimensional image. The optical three-dimensional endoscope camera module is electrically connected with the image processing module.
As shown in fig. 1 to 9, the optical three-dimensional endoscope includes a left objective lens protection window 8, a right objective lens protection window, a lens 1, an optical fiber bundle 7, an outer tube 2, a middle tube 10, an inner tube 11, a left optical path device 9, a right optical path device, a relay prism 6, a lens holder 4, a housing 3, and a sealing cover 5.
The left objective lens protection window 8 and the right objective lens protection window are fixedly mounted on the lens 1, the right objective lens protection window and the left objective lens protection window 8 are identical in structure, and the two windows are arranged side by side. The front ends of the lens 1 and the outer tube 2 are welded together, the two middle tubes 10 are symmetrically arranged in the outer tube 2 in parallel along the axial direction of the lens body, the two inner tubes 11 are respectively arranged in the two middle tubes 10 (one inner tube is arranged in one middle tube 10), the left light path device 9 and the right light path device are respectively arranged in the two inner tubes 11 (one light path device is arranged in one inner tube 1), and the two light path devices are respectively provided with an imaging component, an image transmission component and a spacer ring. The optical path device may be a structure known in the art, for example, a structure disclosed in the utility model with the reference number 201721646161.3 or a structure disclosed in the invention patent application with the reference number CN 105301757A.
The lens base 4 is welded with the shell 3, the relay prism 6 is connected with the lens base 4, and the sealing cover 5 is glued on the lens base 4.
One side of the lens 1 is a 30-degree inclined plane (not limited to 30 degrees, and the specific inclination can be set according to actual conditions), the other side is a vertical plane (the vertical plane is connected with the outer tube 2), two parallel and level light path through holes 1-1 are arranged in the middle of the inclined plane of the lens 1, and the diameter of each light path through hole 1-1 is consistent with the outer diameter of the middle tube 10. An upper illumination outlet 1-2 and a lower illumination outlet 1-3 are arranged on the inclined plane of the lens 1, and the upper illumination outlet 1-2 and the lower illumination outlet 1-3 are positioned at two sides of the light path through hole 1-1. The sum of the areas of the upper illumination outlet 1-2 and the lower illumination outlet 1-3 is the same as the area of the circular beam port 4-3 of the lens holder 4. Meanwhile, one part of the front end of the optical fiber bundle 7 is tightly plugged in the upper illumination outlet 1-2, the other part of the front end of the optical fiber bundle 7 is tightly plugged in the lower illumination outlet 1-3, the rear end of the optical fiber bundle is tightly plugged in the light beam hole 4-3, the optical fiber bundles in the upper illumination outlet 1-2 and the lower illumination outlet 1-3 are finally converged in the light beam hole 4-3 to be Y-shaped, and the optical fiber bundle 7 is fixed on the upper illumination outlet 1-2, the lower illumination outlet 1-3 and the light beam hole 4-3 by glue.
The front end of one middle tube 10 is inserted into a light path through hole 1-1 of the lens 1, and the rear end is inserted into a through hole 4-1 of the lens base 4. The front end of another middle tube 10 is inserted into another light path through hole 1-1 of the lens 1, and the rear end is inserted into a second through hole of the lens base 4. The outer tube 2 and the lens 1 are fixed together at the lap joint by welding or gluing, the rear ends of the two middle tubes 10 are flush with the bottom surface of the lens base 4, and the middle tubes 10 are fixed in the through holes of the lens base 4 by laser welding.
The lens 1 is aligned in vertical plane with the front end of the outer tube 2 concentrically, and fixed together by laser welding at the joint, the rear end of the outer tube 2 is inserted into the through hole 3-1 of the housing 3, and also fixed by laser welding at the joint.
The left objective lens protection window 8 and the right objective lens protection window are made of circular sapphire materials, the peripheries of the left objective lens protection window and the right objective lens protection window are plated with gold to form bonding pads, two light path through holes 1-1 of the lens 1 are provided with circular steps, the left objective lens protection window and the right objective lens protection window are arranged on the circular steps and are welded (in a soldering mode or in a gold-tin eutectic sealing mode) on the circular steps, and therefore fixing assembly is achieved.
The shell 3 is conical, a through hole 3-1 is arranged in the center, the shell 3 is welded with the lens base 4, and two through holes of the lens base 4 are respectively concentric with two light path through holes 1-1 of the lens 1 so as to ensure that the left light path device 9 and the right light path device 9 are flush.
The left light path device 9 and the right light path device are respectively arranged in the two inner tubes 11 and are mutually independent, the imaging component 9-1, the image transmission component 9-2 and the spacer ring 9-3 sequentially comprise an imaging component 9-1, the image transmission component 9-2 and the spacer ring 9-3 from an object end to an ocular end, the imaging component 9-1, the image transmission component 9-2 and the spacer ring 9-3 are tightly attached in the inner tubes 11, the relative positions in the two inner tubes 11 are kept consistent, the spacer ring 9-3 is adhered in the other end of the inner tube 11 and extends out of one part, one end of the spacer ring 9-3 is provided with a groove, the whole light path system can be rotated by rotating the spacer ring 9-3 to adjust the imaging component 9-1, so that the light path system is adjusted to an optimal position, and the two inner tubes 11 are adhered in the two middle tubes 10.
Two through holes 4-1 which are parallel and level are arranged above the lens base 4, a prism chamber 4-2 for placing a rotating image prism 6 is arranged below the through hole 4-1, the rotating image prism 6 is glued in the prism chamber 4-2, the axis of the through hole 4-1 is vertical to the upper surface of the rotating image prism 6, so that light rays emitted from the two through holes vertically enter the rotating image prism 6, are vertically emitted from an emergent wafer of the rotating image prism 6 after being reflected, a light beam hole 4-3 is arranged beside the prism chamber 4-2, and the rear end of an optical fiber bundle 7 is concentrated and filled in the light beam hole 4-3. A thread is arranged on the periphery of the lens seat 4 and is used for being connected with the camera module, and a round step 4-4 is arranged on the upper surface of the lens seat 4, the diameter of the round step is consistent with the inner diameter of the shell 3 and is used for being welded and positioned with the shell 3.
The relay prism 6 is provided with two exit discs 6-1. The rotating image prism 6 is glued in the prism chamber 4-2 of the lens base 4, so that the transverse center line of the rotating image prism is parallel to the connecting line of the two through holes of the lens base 4, and the light rays emitted from the two emergent wafers 6-1 are flush.
The sealing cover 5 is a rectangular sheet and is provided with two round holes 5-1, the distance between the round holes is the same as that between two emergent wafers of the relay prism 6, and the sealing cover 5 is adhered to the relay prism 6 and the lens base 4 to play a role in sealing and protecting the left and right light path devices 9. The sealing cover 5 may be connected only to the relay prism 6.
The optical three-dimensional endoscope has the advantages of compact structure, small volume, small size and simple and quick assembly process. The imaging effect is good, and the imaging is consistent and clear.
As shown in fig. 12 to 23, the optical three-dimensional endoscope camera module includes a positioning plate B1, a locking ring B2, an insulating plate B3, a camera adjustment frame B4, a camera connecting sleeve B5, a camera B6, and a housing B7. There are two cameras B6 and two corresponding camera connecting sleeves B5.
The camera adjustment frame B4 is fixedly mounted within the housing B7.
The positioning plate B1 accurately positions the three-dimensional endoscope with the camera module, and the locking ring B2 is used for fastening the three-dimensional endoscope with the camera module. The insulating plate B3 insulates the three-dimensional endoscope from the camera module, and prevents electric shock to the patient. The spatial positions of the two cameras can be accurately adjusted in the camera adjusting frame B4, the operation is simple, and the installation and the disassembly are convenient.
The positioning plate B1 is a circular plate structure, two light ray holes B1-1 are symmetrically distributed at the position of a center line, a lighting hole B1-2 is arranged under the two light ray holes B1-1, two positioning blocks B1-3 are symmetrically distributed at one side of the positioning plate B1, the positioning blocks B1-3 are specifically square structures, threaded holes are formed in the positioning blocks B1-3, the positioning blocks B1-3 are matched with the positioning grooves B3-2 of the insulating plate B3 and are fixedly connected through screws, and therefore the lighting hole B1-2 of the positioning plate B1 is concentric with the light guide beam fixing hole B3-3 of the insulating plate B3.
The locking ring B2 is a circular ring structure with a certain width, a baffle B2-1 is arranged on one side, threads B2-2 are arranged on the inner circumference, the threads B2-2 are used for connecting with the optical endoscope, and the baffle B2-1 enables the locking ring B2 to be arranged between the positioning plate B1 and the insulating plate B3.
The middle position of the insulating plate B3 is provided with a transverse light port B3-4, a light guide beam fixing hole B3-3 is arranged under the transverse light port B3-4, two countersunk holes B3-1 and two positioning grooves B3-2 are symmetrically distributed on the round step B3-5, and a screw penetrates through the countersunk hole B3-1 to enable the insulating plate B3 to be fixedly connected with the camera adjusting frame B4.
A rectangular through hole for mounting a camera is formed in the middle of the camera adjusting frame B4, two cameras B6 can be placed in the rectangular through hole, 8 screw holes B4-1 are formed in the top of the camera adjusting frame B4, four screw holes B4-1 are formed in the left side of the camera adjusting frame B4, and four screw holes B4-1 are formed in the right side of the camera adjusting frame B4. The bottom of the camera adjusting frame B4 is provided with 8 screw holes B4-1.
The spatial position of the camera can be accurately adjusted by adjusting the position of the set screw in the screw hole B4-1, and the camera is the best position when the image is clear. Two cameras B6 are placed side by side in the rectangular through hole of the camera adjustment frame B4. When the left camera B6 is positioned, four set screws penetrate through four screw holes B4-1 on the left side of the bottom of the camera adjusting frame B4 and then abut against the bottom surface of the left camera B6, four set screws penetrate through four screw holes B4-1 on the left side of the camera adjusting frame B4 and then abut against the side surface of the left camera B6, four set screws penetrate through four screw holes B4-1 on the left side of the top of the camera adjusting frame B4 and then abut against the top surface of the left camera B6, and the spatial position of the left camera B6 can be accurately adjusted by adjusting the set screws. Similarly, when the right camera B6 is positioned, four set screws penetrate through the four screw holes B4-1 on the right side of the bottom of the camera adjusting frame B4 and then abut against the bottom surface of the right camera B6, four set screws penetrate through the four screw holes B4-1 on the right side of the camera adjusting frame B4 and then abut against the side surface of the right camera B6, four set screws penetrate through the four screw holes B4-1 on the right side of the top of the camera adjusting frame B4 and then abut against the top surface of the right camera B6, and the spatial position of the right camera B6 can be accurately adjusted by adjusting the set screws.
The camera connecting sleeve B5 comprises a body B5-2 and a lens barrel B5-1, wherein the body B5-2 is provided with an external thread B5-2-1, and is fixedly connected with a thread on the camera B6. The front end of the camera connecting sleeve B5 is provided with a lens barrel B5-1, a convex lens glue piece is arranged in the lens barrel B5-1, the lens barrel B5-1 is in threaded connection with the body of the camera connecting sleeve B5, and the lens barrel B5-1 can stretch and retract in the axial direction by rotating the lens barrel B5-1 to drive the convex lens glue piece inside so as to realize focusing.
The insulating plate B3 is located between the positioning plate B1 and the camera adjustment frame B4.
The top of the housing B7 is provided with keys to select the desired function. The housing B7 is compact and can protect the camera inside.
The screw thread on the mirror base 4 is connected with the screw thread B2-2 of the insulating plate B3. The two light ray holes B1-1 are aligned with the two exit discs 6-1 of the relay prism 6.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those skilled in the art should understand it, without departing from the spirit of the present invention, they should also understand that other configurations of the components, driving devices and connecting means can be adopted without inventive design and structural modes and embodiments similar to the technical solution.
Claims (2)
1. A stereoscopic endoscope optical system is characterized by comprising an optical three-dimensional endoscope, an optical three-dimensional endoscope camera module, an image processing unit, a host and a 3D display, wherein the image processing unit is connected with the host, and the 3D display is connected with the host; the optical three-dimensional endoscope camera module is electrically connected with the image processing module;
the optical three-dimensional endoscope comprises a lens, a left objective lens protection window, a right objective lens protection window, an outer tube, an optical fiber bundle, a middle tube, an inner tube, a left light path device, a right light path device, a relay prism, a lens base and a shell;
the lens is fixedly connected with the front end of the outer tube, the two middle tubes are symmetrically arranged in the outer tube in parallel along the axial direction, and the two inner tubes are respectively arranged in the two middle tubes; the left light path device and the right light path device are respectively arranged in the two inner pipes;
an inclined plane is arranged on the outer side of the lens, two parallel light path through holes are formed in the middle of the inclined plane of the lens, an upper illumination outlet and a lower illumination outlet are formed in the inclined plane of the lens, and the upper illumination outlet and the lower illumination outlet are located on two sides of the light path through holes;
the left objective lens protection window and the right objective lens protection window are respectively connected with the two light path through holes of the lens;
the shell is provided with a through hole, and the rear end of the outer tube is inserted into the through hole of the shell;
the lens base is fixedly connected with the shell and is provided with a prism chamber, a beam hole and two through holes; the front ends of the two middle pipes are respectively inserted into the two light path through holes of the lens, and the rear ends of the two middle pipes are respectively inserted into the two through holes of the lens base;
one part of the front end of the optical fiber bundle is arranged in an upper illumination outlet of the lens, and the other part of the front end of the optical fiber bundle is arranged in a lower illumination outlet; the rear end of the optical fiber bundle is arranged in a beam hole of the lens base;
the image transfer prism is connected to the prism chamber of the lens base;
the optical three-dimensional endoscope camera module comprises two camera adjusting frames, two cameras and a shell;
the camera adjusting frame is fixedly connected with the shell;
the camera adjusting frame is characterized in that a rectangular through hole for mounting a camera is formed in the middle of the camera adjusting frame, a plurality of screw holes are formed in the top of the camera adjusting frame, a plurality of screw holes are formed in the left side of the camera adjusting frame, and a plurality of screw holes are formed in the right side of the camera adjusting frame; the bottom of the camera adjusting frame is provided with a plurality of screw holes;
the two cameras are arranged in the rectangular through hole of the camera adjusting frame side by side, the set screw penetrates through the screw hole on the left side of the bottom of the camera adjusting frame and then abuts against the bottom surface of the left camera, the set screw penetrates through the screw hole on the left side of the camera adjusting frame and then abuts against the side surface of the left camera, and the set screw penetrates through the screw hole on the left side of the top of the camera adjusting frame and then abuts against the top surface of the left camera; the set screw penetrates through a screw hole on the right side of the bottom of the camera adjusting frame and then abuts against the bottom surface of the right camera, the set screw penetrates through a screw hole on the right side of the camera adjusting frame and then abuts against the side surface of the right camera, and the set screw penetrates through a screw hole on the right side of the top of the camera adjusting frame and then abuts against the top surface of the right camera;
the lens base is connected with the camera adjusting frame;
the optical three-dimensional endoscope camera module also comprises two camera connecting sleeves; the camera connecting sleeve comprises a body and a lens cone, wherein the body is provided with an external thread, and the external thread of the body is connected with the thread on the camera.
2. The stereoscopic endoscope optical system according to claim 1, wherein the optical three-dimensional endoscope camera module further comprises a positioning plate, an insulating plate between the positioning plate and the camera head adjustment frame; the positioning plate is of a circular plate structure and is provided with two light ray holes, one lighting hole and two positioning blocks which are symmetrically distributed, the positioning blocks are provided with threaded holes, and the positioning blocks are matched with the positioning grooves of the insulating plate and are fixedly connected through screws;
the insulation board is provided with a transverse light port, a light guide beam fixing hole, two symmetrically distributed counter bores and two positioning grooves, and the insulation board is connected and fixed with the camera adjusting frame by penetrating screws through the counter bores.
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| CN202011069224.XA CN112155498A (en) | 2020-09-30 | 2020-09-30 | Stereoscopic endoscope optical system |
| CN202011069224X | 2020-09-30 |
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| CN202121126763.2U Active CN215017010U (en) | 2020-09-30 | 2021-05-25 | Stereoscopic endoscope optical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2005071977A2 (en) * | 2004-01-14 | 2005-08-04 | Precision Optics Corporation | Convergence optics for stereoscopic imaging systems |
| DE102013209956A1 (en) * | 2013-05-28 | 2014-12-04 | Xion Gmbh | Video endoscopic device |
| CN104188616B (en) * | 2014-09-22 | 2016-05-04 | 天津博朗科技发展有限公司 | A kind of stereo endoscope that is easy to assembling |
| CN106618449B (en) * | 2016-11-15 | 2018-04-17 | 天津大学 | Micro-wound operation robot stereo endoscope device |
| DE102017113273A1 (en) * | 2017-06-16 | 2018-12-20 | avateramedical GmBH | Lens for an endoscope and endoscope |
| CN108107565A (en) * | 2017-12-01 | 2018-06-01 | 山东威高手术机器人有限公司 | A kind of stereo endoscope optical system |
| CN208798061U (en) * | 2018-09-29 | 2019-04-26 | 广州希泰电子有限公司 | A kind of monitoring camera of manual focusing |
| US10398287B1 (en) * | 2018-10-10 | 2019-09-03 | Titan Medical Inc. | Camera positioning system, method, and apparatus for capturing images during a medical procedure |
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