Dual optical path endoscope device

Abstract

The present application relates to a kind of dual optical path endoscope equipment, including optical lens, light splitting component and camera.Optical lens is connected with camera by light splitting component.Light splitting component is located outside camera and between optical lens and camera, for receiving the light output by optical lens and splitting light into first light and second light.Under the action of light splitting component, light is transmitted into camera in two ways, then one way is sent into polarized light image sensor, and the other way is directly sent into RGB image sensor.Double image sensor can output clear image in interference environment, and different functional imaging can be realized according to actual demand.In addition, light splitting component is designed separately with optical lens and camera, and arranged outside camera, so as to simplify the structure of camera, and the size of camera can be reduced to facilitate doctor holding, and the space released in camera can facilitate the installation of other functional components.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a double optical path endoscope device. BACKGROUND

[0002] An endoscope is a medical device that can be inserted into the body cavity and internal cavity of organs for observation, diagnosis and treatment. It generally includes an image processing host, a camera, an optical lens and an endoscope mirror connected in sequence. It uses an extremely small endoscope mirror to optically image the internal cavity objects to be observed through a micro objective imaging system, then sends the optical image to the image processing host through the optical lens and the camera, and finally outputs the observed image after image processing on the display screen for the doctor to observe and diagnose.

[0003] During a traditional endoscopic surgery, when blood water, smoke, mist and other situations caused by other surgical instruments are encountered, the surgery often needs to be continued after the interference environment is cleaned. Blood water, smoke, mist and other situations often occur frequently during surgery, and cleaning actions also need to be performed frequently, resulting in reduced surgery efficiency. In a related technology, a solution to the above problem is to install a light splitting prism in the camera. The light splitting prism makes the light entering the camera interior sent to the polarized light image sensor in one way and to the RGB image sensor in another way. The double image sensors can also output clear images in an interference environment. However, since the light splitting prism is arranged in the camera, the camera volume becomes larger, which is not conducive to being held by the doctor, occupies the camera interior space, and is not conducive to installing other functional components. In addition, assembly is difficult and is not convenient for cleaning and maintenance. SUMMARY

[0004] Therefore, it is necessary to overcome the defects of the prior art and provide a double optical path endoscope device that can simplify the structure of the camera, reduce the volume size of the camera, and is simple to assemble and convenient to clean and maintain.

[0005] The technical scheme is as follows: a double optical path endoscope device, the double optical path endoscope device comprising:

[0006] An optical lens, a light splitting assembly and a camera, the optical lens being connected with the camera through the light splitting assembly, the light splitting assembly being located outside the camera and between the optical lens and the camera; the light splitting assembly is used for receiving light output by the optical lens and splitting the light into first light and second light; the camera includes a polarized light image sensor and an RGB image sensor, the polarized light image sensor being used for receiving the first light, and the RGB image sensor being used for receiving the second light.

[0007] In one of the embodiments, the dual optical path endoscope device further comprises a polarization element for polarizing the first path light, and the polarized light image sensor is configured to receive the polarized first path light.

[0008] In one of the embodiments, the light splitting assembly comprises a fixing base and a light splitting member, the fixing base is provided with a first interface portion and a second interface portion arranged oppositely; the first interface portion is detachably connected with the optical lens, and the second interface portion is detachably connected with the camera; the light splitting member is connected with the fixing base and located between the first interface portion and the second interface portion, and is configured to receive the light output by the optical lens and split the light into a first path light and a second path light.

[0009] In one of the embodiments, the camera further comprises a housing, a connecting base and a circuit board, the polarized light image sensor and the RGB image sensor are arranged on the circuit board in a spaced manner, and the housing is provided with an interface portion; the connecting base is detachably connected with the interface portion, and the connecting base is further detachably connected with the second interface portion; the circuit board is located inside the housing, and the circuit board and the connecting base are fixedly abutted with each other.

[0010] In one of the embodiments, the connecting base is provided with a first light inlet hole corresponding to the first path light, a first filter arranged in the first light inlet hole, a second light inlet hole corresponding to the second path light, and a second filter arranged in the second light inlet hole.

[0011] In one of the embodiments, one end of the connecting base facing the circuit board is formed with a first recess, the circuit board is arranged in the first recess and connected with the connecting base by a first fastener.

[0012] In one of the embodiments, a bottom wall of the first recess is formed with two second recesses; the two second recesses are respectively adapted to the polarized light image sensor and the RGB image sensor, and the polarized light image sensor and the RGB image sensor are respectively arranged in the two second recesses.

[0013] In one of the embodiments, the second interface portion is provided with a first clamping portion, and one end of the connecting base facing the light splitting assembly is provided with at least one second clamping portion, the second clamping portion is correspondingly clamped and fixed with the first clamping portion.

[0014] In one of the embodiments, the second clamping part is at least two and is arranged in sequence and at intervals along the circumferential outer contour of the connecting seat; the first clamping part is at least two and is arranged along the circumferential outer contour of the fixing seat; the second clamping part can be correspondingly accommodated in the interval between two adjacent first clamping parts and is rotatable around the central axis to make the second clamping part correspondingly clamped with the first clamping part or to make the second clamping part and the first clamping part separated from each other.

[0015] In one of the embodiments, the connecting seat is provided with a positioning hole at one end facing the light splitting assembly; the light splitting assembly further comprises an elastic positioning member arranged on the fixing seat and an unlocking member connected with the elastic positioning member; the second connecting part is provided with a first movable hole extending to the surface of the second connecting part facing the camera; the elastic positioning member is arranged in the first movable hole and extends outward into the positioning hole through the first movable hole; and the unlocking member is used to drive the elastic positioning member to completely enter the first movable hole.

[0016] The above-mentioned double-light-path endoscope device, after the light splitting member is installed on the connecting seat, under the action of the light splitting member, makes the light transmitted from the second interface part into the camera in two paths, and then one path is transmitted into the polarized light image sensor and the other path is transmitted into the RGB image sensor, the double image sensors can clearly output images in an interference environment, and different functional imaging can be realized according to actual needs. In addition, the external light splitting assembly and the camera are designed in a split type, arranged outside the camera, without the need to integrate the light splitting member in the camera as in the related art, so as to simplify the structure of the camera and reduce the size of the camera to facilitate the doctor to hold, and the space released in the camera can facilitate the installation of other functional components. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings, and their description, are presented to explain the application and are not intended to limit the application.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort.

[0019] Figure 1 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings, and their description, are presented to explain the application and are not intended to limit the application.

[0020] Figure 2 The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings, and their description, are presented to explain the application and are not intended to limit the application.Figure 1 Internal structure schematic view of the structure shown;

[0021] Figure 3 For Figure 1 Perspective view of the light splitting assembly in the structure shown;

[0022] Figure 4 For Figure 3 Sectional view of the structure shown at A-A;

[0023] Figure 5 For Figure 4 Structure schematic view of the light splitting piece in the structure shown;

[0024] Figure 6 For Figure 3 Another perspective view of the structure shown;

[0025] Figure 7 For Figure 3 Still another perspective view of the structure shown;

[0026] Figure 8 A perspective view of a camera according to an embodiment of the present application;

[0027] Figure 9 For Figure 8 Another perspective view of the structure shown;

[0028] Figure 10 For Figure 8 Sectional view of the structure shown;

[0029] Figure 11 For Figure 8 Perspective view of the connecting seat in the structure shown;

[0030] Figure 12 For Figure 8 Another perspective view of the connecting seat in the structure shown;

[0031] Figure 13 A perspective view of a circuit board according to an embodiment of the present application.

[0032] Reference signs:

[0033] 10. Optical lens; 20. Beam splitter assembly; 21. Mounting base; 211. First docking part; 2111. Third recess; 212. Second docking part; 2121. First holding part; 2122. First movable hole; 2123. Second movable hole; 213. Mounting chamber; 214. Pressure cover; 2141. Clearance opening; 215. Second fastener; 22. Beam splitter; 221. Beam splitter prism; 2211. First surface; 2212. Second surface; 2213. Third surface; 2214. Fourth surface; 222. Reflective film; 223. Reflective film; 224. Prism; 23. Elastic positioning element; 231. Elastic element; 2 32. Positioning post; 24. Unlocking component; 25. Filter; 30. Camera; 31. Circuit board; 311. Polarized light image sensor; 312. RGB image sensor; 313. Mounting hole; 32. Housing; 321. Interface part; 33. Connector; 331. First light inlet; 332. First filter; 333. Second light inlet; 334. Second filter; 335. First recess; 3351. Second recess; 336. Insertion part; 337. Abutting edge; 338. Second holding part; 339. Positioning hole; 34. First fastener; 35. Insulating cover; 36. Sealing ring; 37. Decorative ring. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] See Figure 1 , Figure 2 , Figure 5 and Figure 13 , Figure 1 This invention provides a schematic diagram of the structure of a dual-beam endoscope device according to an embodiment of the present application. Figure 2 It shows Figure 1 A schematic diagram of the internal structure of the structure shown. Figure 5 This diagram illustrates the structure of a beam splitter 22 according to an embodiment of the present invention, which splits light into a first beam and a second beam. Figure 13A schematic diagram of a circuit board 31 from one perspective is shown according to an embodiment of the present invention. An embodiment of a dual-optical-path endoscope device is provided, including an optical lens 10, a beam splitter 20, and a camera 30. The optical lens 10 is connected to the camera 30 via the beam splitter 20. The beam splitter 20 is located outside the camera 30 and between the optical lens 10 and the camera 30, and is used to receive light output from the optical lens 10 (such as...). Figure 5 (as shown by M in the diagram) and split the light into the first path (as shown by M in the diagram) Figure 5 (as shown in N) and the second ray (as shown in N) Figure 5 (As shown in P in the diagram). The camera 30 includes a circuit board 31. The circuit board 31 is provided with a polarized light image sensor 311 and an RGB image sensor 312 arranged at intervals. The polarized light image sensor 311 is used to receive a first path of light, and the RGB image sensor 312 is used to receive a second path of light.

[0036] The aforementioned dual-beam endoscope device, under the action of the beam splitter 20, allows light to be split into two paths and enter the camera 30. One path is sent to the polarized light image sensor 311, and the other path is sent to the RGB image sensor 312. The dual image sensors can output clear images even in interference environments, and can realize different imaging functions according to actual needs. In addition, the beam splitter 20 adopts a separate design from the optical lens 10 and the camera 30, and is arranged outside the camera 30 as a relatively independent component. It does not require the beam splitter 22 to be integrated inside the camera 30 as in related technologies, thereby simplifying the structure of the camera 30 and reducing its size for easier handling by doctors. At the same time, the space freed up inside the camera 30 can be used to install other functional components.

[0037] In one embodiment, the dual-beam endoscope device further includes a polarization element (not shown). The polarization element is used to polarize the first beam, and the polarized light image sensor 311 is used to receive the polarized first beam. Polarization processing refers to obtaining polarized light from the mixed light through optical processing such as transmission, reflection, or refraction; that is, the polarized first beam is the polarized light within the first beam. Thus, the polarized first beam, compared to the unpolarized first beam, is captured better by the polarized light image sensor 311.

[0038] Please see Figures 3 to 7 , Figure 3 It shows Figure 1 A schematic diagram of the beam-splitting component 20 in the structure shown from one angle. Figure 4 It shows Figure 3 The diagram shows a cross-sectional view of the structure at point AA. Figure 6 It shows Figure 3Another perspective view of the structure shown, Figure 7 is shown Figure 3 Another perspective view of the structure shown. In one embodiment, the light splitting assembly 20 comprises a fixing seat 21 and a light splitting piece 22. The fixing seat 21 is provided with a first mating portion 211 and a second mating portion 212 arranged oppositely. The first mating portion 211 is detachably connected with the optical lens 10, and the second mating portion 212 is detachably connected with the camera 30. The light splitting piece 22 is connected with the fixing seat 21 and located between the first mating portion 211 and the second mating portion 212. The light splitting piece 22 is used for receiving the light output by the optical lens 10 and splitting the light into a first light and a second light. In this way, the light splitting assembly 20 is detachably connected with the optical lens 10 and the camera 30. Not only is the assembly simple, but also the light splitting assembly 20 can be detached according to requirements, and the light splitting assembly 20 can be cleaned, maintained, replaced, and the like, which is relatively convenient to operate.

[0039] In one embodiment, the double-light-path endoscope device further comprises an endoscope mirror (not shown in the figure). The endoscope mirror is connected with the optical lens 10.

[0040] Please refer to Figures 8 to 12 , Figure 8 is shown Figure 9 is shown Figure 8 Another perspective view of the structure shown, Figure 10 is shown Figure 8 A sectional view of the structure shown, Figure 11 is shown Figure 8 A perspective view of the connecting seat 33 in the structure shown, Figure 12 is shown Figure 8 Another perspective view of the connecting seat 33 in the structure shown. In one embodiment, the camera 30 comprises a circuit board 31, a shell 32, and a connecting seat 33. The polarized light image sensor 311 and the RGB image sensor 312 are arranged on the circuit board 31 in a spaced manner. The shell 32 is provided with an interface portion 321. The connecting seat 33 is detachably connected with the interface portion 321, and the connecting seat 33 is also detachably connected with the second mating portion 212. The circuit board 31 is located inside the shell 32, and the circuit board 31 and the connecting seat 33 are fixedly abutted with each other.

[0041] Please refer to Figures 8 to 12In one embodiment, the connecting seat 33 is provided with a first light inlet hole 331 corresponding to the first light, a first filter 332 arranged in the first light inlet hole 331, a second light inlet hole 333 corresponding to the second light, and a second filter 334 arranged in the second light inlet hole 333. In this way, the first light output by the light splitting assembly 20 is filtered by the first filter 332 of the first light inlet hole 331 and then enters the inside of the camera 30; the second light output by the light splitting assembly 20 is filtered by the second filter 334 of the second light inlet hole 333 and then enters the inside of the camera 30.

[0042] Specifically, the polarization element is a polarization film arranged on the first filter 332.

[0043] Referring to Figures 8 to 12 In one embodiment, one end of the connecting seat 33 facing the circuit board 31 is formed with a first recess 335, the circuit board 31 is arranged in the first recess 335, and the circuit board 31 is connected to the connecting seat 33 through the first fastener 34. Specifically, the first recess 335 is adapted to the shape of the circuit board 31, so that the circuit board 31 is stably connected to the connecting seat 33.

[0044] Correspondingly, the circuit board 31 is provided with a mounting hole 313 corresponding to the first fastener 34, and the first fastener 34 passes through the mounting hole 313 to fixedly connect the circuit board 31 to the connecting seat 33.

[0045] Alternatively, the circuit board 31 is a plurality of circuit boards arranged in the housing 32 in sequence and at intervals. The circuit boards 31 are electrically connected by cables. The first fastener 34 passes through the plurality of circuit boards 31 in sequence and is connected to the connecting seat 33.

[0046] Alternatively, the first fastener 34 includes, but is not limited to, a bolt, a screw, a pin, a rivet, and the like.

[0047] Referring to Figures 8 to 12 In one embodiment, the bottom wall of the first recess 335 is formed with two second recesses 3351. The two second recesses 3351 are respectively adapted to the polarization light image sensor 311 and the RGB image sensor 312, and the polarization light image sensor 311 and the RGB image sensor 312 are respectively arranged in the two second recesses 3351. In this way, the polarization light image sensor 311 and the RGB image sensor 312 are respectively arranged in the two second recesses 3351, which can ensure the stability of the installation.

[0048] Referring to Figures 8 to 12In an embodiment, the shell 32 is a metal shell, and the shell 32 further comprises an insulating cover 35. The insulating cover 35 covers the outside of the circuit board 31. In this way, the shell 32 shields electromagnetic interference, and the insulating cover 35 provides electrostatic protection. Alternatively, the insulating cover 35 includes, but is not limited to, a plastic cover, a plastic cover, and the like.

[0049] Referring to Figures 8 to 12 In an embodiment, the connecting seat 33 comprises an insertion portion 336 and a blocking edge 337 circumferentially arranged around the insertion portion 336. The insertion portion 336 is inserted into the interface portion 321, and the blocking edge 337 abuts against the interface portion 321.

[0050] Referring to Figures 8 to 12 In an embodiment, the camera 30 based on the external light splitting assembly 20 further comprises a sealing ring 36. The sealing ring 36 is arranged between the outer wall of the insertion portion 336 and the inner wall of the interface portion 321. In this way, the sealing ring 36 can ensure the sealing between the connecting seat 33 and the interface portion 321, preventing liquid from entering the shell 32 and damaging the image sensor.

[0051] Referring to Figures 8 to 12 In an embodiment, the camera 30 based on the external light splitting assembly 20 further comprises a decorative ring 37. The decorative ring 37 is sleeved on the insertion portion 336 and located between the blocking edge 337 and the interface portion 321.

[0052] Alternatively, the connecting seat 33 and the light splitting assembly 20 are detachably connected. This not only makes assembly simple, but also allows the camera 30 and the light splitting assembly 20 to be detached and cleaned, maintained, replaced, and the like according to needs, which is relatively convenient to operate.

[0053] Referring to Figure 2 , Figure 6 With Figure 8 In an embodiment, the second connecting portion 212 is provided with a first clamping portion 2121, and the end facing the connecting seat 33 of the light splitting assembly 20 is provided with at least one second clamping portion 338. The second clamping portion 338 is correspondingly clamped and fixed with the first clamping portion 2121. In this way, the connecting seat 33 is clamped and fixed with the first clamping portion 2121 of the light splitting assembly 20 through the second clamping portion 338, so that the disassembly and assembly operation between the light splitting assembly 20 and the camera 30 is relatively convenient and fast.

[0054] It should be noted that the second clamping portion 338 and the first clamping portion 2121 can be clamped and fixed in various ways, and the specific clamping and fixing mode can be selected and set as required. For example, the second clamping portion 338 is a clamping jaw, a clamping buckle or a clamping hook, and the first clamping portion 2121 is a clamping hole corresponding to the second clamping portion 338. Conversely, the second clamping portion 338 is a clamping hole, and the first clamping portion 2121 is a clamping jaw, a clamping buckle or a clamping hook.

[0055] Please refer to Figure 2 , Figure 6 and Figure 8 In one embodiment, the second clamping portion 338 is at least two and is arranged in sequence and at intervals around the circumferential outer contour of the connecting seat 33. Correspondingly, the first clamping portion 2121 of the light splitting assembly 20 is at least two, and the at least two first clamping portions 2121 are arranged on the circumferential outer contour of the light splitting assembly 20. In addition, the second clamping portion 338 can be correspondingly accommodated in the interval between the adjacent two first clamping portions 2121, and can be clamped and fixed with the first clamping portion 2121 by rotating around the central axis, or can be separated from the first clamping portion 2121. Specifically, during assembly, after the light splitting assembly 20 and the camera 30 are rotated relative to each other by a predetermined angle, the first clamping portion 2121 is clamped into the gap between the second clamping portion 338 and the end face of the connecting seat 33, and the clamping and fixing effect is achieved. During disassembly, after the light splitting assembly 20 and the camera 30 are rotated relative to each other in the opposite direction by a predetermined angle, the first clamping portion 2121 is separated from the gap between the second clamping portion 338 and the end face of the camera 30, so that the light splitting assembly 20 and the camera 30 can be separated from each other.

[0056] Please refer to Figure 2 , Figure 6 and Figure 8In one embodiment, one end of the connecting seat 33 facing the light splitting assembly 20 is provided with a positioning hole 339. In addition, the light splitting assembly 20 further comprises an elastic positioning member 23 arranged on the fixing seat 21 and an unlocking member 24 connected with the elastic positioning member 23. The second connecting part 212 is provided with a first movable hole 2122 extending to the surface of the second connecting part 212 facing the camera 30. The elastic positioning member 23 is arranged in the first movable hole 2122 and extends outward through the first movable hole 2122, and the unlocking member 24 is used to drive the elastic positioning member 23 to completely enter the first movable hole 2122. In this way, when the light splitting assembly 20 and the camera 30 are assembled together, since the elastic positioning member 23 extends outward through the first movable hole 2122, the structure of the elastic positioning member 23 extending outward through the first movable hole 2122 is correspondingly arranged in the positioning hole 339 of the camera 30, so that the mutual rotation of the fixing seat 21 and the camera 30 caused by the mutual disassembly of the fixing seat 21 and the camera 30 can be avoided, and the connection stability of the light splitting assembly 20 and the camera 30 is improved. When the light splitting assembly 20 and the camera 30 need to be disassembled, the elastic positioning member 23 is driven by the unlocking member 24 to completely enter the first movable hole 2122, that is, the elastic positioning member 23 is away from the positioning hole 339 and no longer positions the camera 30, so that the fixing seat 21 and the camera 30 can be rotated relative to each other under the action of external force, thereby achieving mutual disassembly.

[0057] Please refer to Figure 2 , Figure 6 and Figure 8 In addition, the second connecting part 212 is further provided with a second movable hole 2123 in communication with the first movable hole 2122. The second movable hole 2123 extends to the side surface of the second connecting part 212, the unlocking member 24 is arranged in the second movable hole 2123 and extends outward through the second movable hole 2123, and the movement direction of the unlocking member 24 in the second movable hole 2123 (as shown by the arrow S in Figure 6 ).

[0058] Optionally, the elastic positioning member 23 comprises an elastic member 231 and a positioning column 232 connected with the elastic member 231. The positioning column 232 extends outward through the first movable hole 2122. The elastic member 231 includes but is not limited to a spring, an elastic block and the like.

[0059] Optionally, the unlocking member 24 includes but is not limited to a push rod or a push column.

[0060] Please refer to Figure 4 In one embodiment, the fixing seat 21 is provided with a mounting cavity 213, and the light splitting member 22 is fixedly arranged inside the mounting cavity 213.

[0061] Please refer toFigure 4 With Figure 6 In one embodiment, the second interface portion 212 is provided with a detachable cover 214. The cover 214 abuts against the light splitting member 22, so that the light splitting member 22 is fixed inside the mounting chamber 213. The cover 214 is further provided with a clearance 2141 for avoiding the first light and the second light.

[0062] Of course, as some optional solutions, the light splitting member 22 can be fixed inside the mounting chamber 213 by, for example, adhesion or clamping, instead of being fixed by the cover 214.

[0063] Referring to Figure 2 , Figure 6 With Figure 8 Specifically, the first clamping portion 2121 is connected to the circumferential outer contour of the cover 214. Optionally, the first clamping portion 2121 is, for example, two, three, four or five, and is arranged at equal intervals along the circumferential outer contour of the cover 214. Optionally, the shape of the first clamping portion 2121 includes, but is not limited to, an arc-shaped protrusion or a sector-shaped protrusion arranged along the edge of the cover 214. Correspondingly, the shape of the second clamping portion 338 includes, but is not limited to, an arc-shaped protrusion or a sector-shaped protrusion arranged along the edge of the camera 30.

[0064] In one embodiment, waterproof glue is applied to the circumferential edge of the cover 214 in contact with the light splitting member 22 to ensure waterproofness. In addition, the cover 214 is detachably arranged on the second interface portion 212 by, for example, at least one second fastener 215, which includes, but is not limited to, a countersunk screw, so as to facilitate the close connection of the second interface portion 212 and the camera 30. In addition, after the cover 214 is fixed on the second interface portion 212, it is necessary to ensure that the unlocking member 24 can be smoothly pulled out of the second movable hole 2123, and that the elastic member 231 can be automatically reset.

[0065] Referring to Figure 4 In one embodiment, the first interface portion 211 is provided with a third recess 2111 for abutting against the optical lens 10. The inner wall of the third recess 2111 is provided with threads. In this way, the fixing seat 21 and the optical lens 10 are connected by threads, so as to facilitate the disassembly and replacement of the optical lens 10.

[0066] Referring to Figure 4 With Figure 7 In one embodiment, the light splitting assembly 20 further includes a filter 25 connected to the fixing seat 21. The filter 25 is located between the first interface portion 211 and the light splitting member 22. In this way, the filter 25 filters the light output by the optical lens 10, so as to filter out stray light and then enter the light splitting member 22 for light splitting.

[0067] It should be noted that the setting form of the light splitting piece 22 is various, and can be flexibly adjusted and set according to actual needs, as long as the received light can be split into two light beams arranged in parallel, for example. The specific embodiments cannot be listed one by one in the embodiment.

[0068] Please refer to Figure 4 and Figure 5 In one embodiment, the light splitting piece 22 includes a light splitting prism 221, a light splitting film, and a reflective film 223. The light splitting prism 221 is provided with a first surface 2211 and a second surface 2212 arranged oppositely, and a third surface 2213 and a fourth surface 2214 arranged oppositely. The first surface 2211 is relatively close to the optical lens 10. The light splitting film is arranged on the third surface 2213, and the reflective film 223 is arranged on the fourth surface 2214.

[0069] In addition, the first surface 2211 is parallel to the second surface 2212, the third surface 2213 is parallel to the fourth surface 2214, and the first surface 2211 and the third surface 2213 are arranged at an acute angle. In this way, during operation, the light output by the optical lens 10 is incident on the first surface 2211. When entering the third surface 2213, the light is processed by the light splitting film on the third surface 2213. One light beam split by the light splitting film is output to the camera 30 after passing through the second surface 2212. The light beam reflected by the light splitting film enters the fourth surface 2214, and is further processed by the reflective film 223 on the fourth surface 2214, so that the light is reflected to the second surface 2212 and output to the camera 30.

[0070] Please refer to Figure 5 The light splitting piece 22 further includes a three-prism 224. The inclined surface of the three-prism 224 is connected with the third surface 2213. The three-prism 224 can prevent dust from entering the area enclosed by the third surface 2213 and the mounting chamber 213, thereby reducing the cleaning workload.

[0071] It should be noted that the RGB image sensor 312, also known as a color recognition sensor, converts the RGB light signal in the white light signal on its photosensitive area into a corresponding electrical signal, i.e., an RGB image signal, by using the photoelectric conversion function of the photoelectric device. The RGB image sensor 312 can simultaneously collect red (R), green (G), and blue (B) light signals and convert the three color light signals into electrical signals. The RGB image sensor 312 in the embodiment is an RGB image sensor 312 with a 4K resolution, such as a CCD image sensor and a CMOS image sensor.

[0072] It should be further noted that the polarized light image sensor 311 converts the polarized light signal in the white light and / or the polarized light signal in the polarized light on the light-sensitive area thereof into corresponding electrical signals, i.e., polarized information image signals, by using the photoelectric conversion function of the photoelectric device. The polarized light signal is a light signal with a certain polarization angle, and the polarized light image sensor 311 can sense the polarized light signal with a preset polarization angle in the white light and / or the polarized light and convert the polarized light signal into a corresponding electrical signal. The polarized light image sensor 311 in the embodiment has eight polarization angles of 0°, 30°, 45°, 60°, 90°, 120°, 135°, and 150°. In other embodiments, the polarization angle of the polarized light image sensor 311 can also be other angles, which are not limited here.

[0073] Any combination of the technical features in the above embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the description.

[0074] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

[0075] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0076] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0077] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", and "fixing" should be construed as broad terms, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0079] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

Claims

1. A dual optical path endoscope apparatus, characterized by, The double optical path endoscope device comprises: An optical lens, a light splitting assembly and a camera, the optical lens is connected with the camera through the light splitting assembly, the light splitting assembly is located outside the camera and between the optical lens and the camera; the light splitting assembly comprises a fixing seat and a light splitting piece, the fixing seat is provided with a first connecting part and a second connecting part arranged oppositely; the first connecting part is detachably connected with the optical lens, and the second connecting part is detachably connected with the camera; the light splitting piece is connected with the fixing seat and located between the first connecting part and the second connecting part, and the light splitting piece is used for receiving light output by the optical lens and splitting the light into first light and second light; The camera comprises a polarized light image sensor and an RGB image sensor, the polarized light image sensor is used for receiving the first light, and the RGB image sensor is used for receiving the second light.

2. The dual optical path endoscope apparatus according to claim 1, characterized by, The double optical path endoscope device further comprises a polarized element, the polarized element is used for polarizing the first light, and the polarized light image sensor is used for receiving the first light after the polarizing treatment.

3. The dual optical path endoscope apparatus according to claim 1, characterized by, The double optical path endoscope device further comprises an endoscope mirror, the endoscope mirror is connected with the optical lens.

4. The dual optical path endoscope apparatus according to claim 1, characterized by, The camera further comprises a housing, a connecting seat and a circuit board, the polarized light image sensor and the RGB image sensor are arranged on the circuit board in a spaced manner, and the housing is provided with an interface part; the connecting seat is detachably connected with the interface part, and the connecting seat is further detachably connected with the second connecting part; the circuit board is located inside the housing, and the circuit board and the connecting seat are fixed by abutting each other.

5. The dual optical path endoscope apparatus according to claim 4, characterized by, The connecting seat is provided with a first light inlet hole corresponding to the first light, a first filter arranged in the first light inlet hole, a second light inlet hole corresponding to the second light, and a second filter arranged in the second light inlet hole.

6. The dual optical path endoscope apparatus according to claim 4, characterized by, One end of the connecting seat facing the circuit board is formed with a first recess, the circuit board is arranged in the first recess and connected with the connecting seat through a first fastener.

7. The dual optical path endoscope apparatus according to claim 6, characterized by, Two second recesses are formed on the bottom wall of the first recess; the two second recesses are respectively adapted to the polarized light image sensor and the RGB image sensor, and the polarized light image sensor and the RGB image sensor are respectively arranged in the two second recesses.

8. The dual optical path endoscope apparatus according to claim 4, characterized by, The second connecting part is provided with a first clamping part, and one end of the connecting seat facing the light splitting assembly is provided with at least one second clamping part, the second clamping part is correspondingly clamped and fixed with the first clamping part.

9. The dual optical path endoscope apparatus according to claim 8, characterized by, The second clamping part is at least two and is arranged in sequence and at intervals around the circumferential outer contour of the connecting seat; the first clamping part is at least two and is arranged around the circumferential outer contour of the fixed seat; the second clamping part can be correspondingly accommodated in the interval between two adjacent first clamping parts and is rotated around the central axis to make the second clamping part correspondingly clamped and fixed with the first clamping part or to make the second clamping part and the first clamping part separated from each other.

10. The dual optical path endoscope apparatus according to claim 8, characterized by, The connecting seat is provided with a positioning hole at one end facing the light splitting assembly; the light splitting assembly further comprises an elastic positioning member arranged on the fixed seat and an unlocking member connected with the elastic positioning member; the second connecting part is provided with a first movable hole extending to the surface of the second connecting part facing the camera; the elastic positioning member is arranged in the first movable hole and extends outward into the positioning hole through the first movable hole; and the unlocking member is used to drive the elastic positioning member to completely enter the first movable hole.

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