CN219763290U

CN219763290U - Double-light path adaptive lens and endoscope equipment

Info

Publication number: CN219763290U
Application number: CN202320640244.0U
Authority: CN
Inventors: 郭毅军; 贺凤均; 刘中航; 黄景鑫
Original assignee: Chongqing Xishan Science and Technology Co Ltd
Current assignee: Chongqing Xishan Science and Technology Co Ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-09-29
Anticipated expiration: 2033-03-28

Abstract

The utility model relates to a double-light-path adaptive lens and an endoscope device. The lens cone is provided with a light inlet end and a light outlet end which are oppositely arranged, the light inlet end is used for being connected with the endoscope hard lens, and the light outlet end is used for being connected with the camera. The focusing assembly and the light splitting piece are sequentially arranged inside the lens barrel along the direction from the light inlet end to the light outlet end, and the focusing assembly is used for receiving light output by the hard endoscope and focusing the output light. The beam splitting piece is used for splitting light rays subjected to focusing treatment into a first path of light rays and a second path of light rays. The first path of light and the second path of light are respectively output to the camera. Because the light splitting piece is not required to be integrated in the camera as in the related art, the structure of the camera is simplified, the size of the camera can be reduced to facilitate holding by doctors, and meanwhile, the space vacated in the camera can facilitate adding other functional components.

Description

Double-light path adaptive lens and endoscope equipment

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a double-light-path adaptive lens and endoscope equipment.

Background

An endoscope is medical equipment which can be inserted into the cavities of human body and organs to observe, diagnose and treat, and generally comprises an image processing host, a camera, a double-light-path adaptive lens and an endoscope hard lens which are connected in sequence. The endoscope hard mirror with extremely small size is adopted to optically image the object in the cavity to be observed through the tiny objective imaging system, then the optical imaging is sent to the image processing host through the double-light path adaptive lens and the camera, and finally the observed image after the image processing is output on the display screen for the doctor to observe and diagnose.

The conventional dual-optical-path adaptive lens in the medical instrument industry mostly adopts a single-optical-path structure. When the operation is performed, the operation can be continued after the interference environment is cleaned when the conditions of blood, smoke dust, fog and the like caused by other surgical instruments are met. The conditions such as blood, smoke dust and fog often occur frequently in the operation, and the cleaning action is required to be performed frequently, so that the operation efficiency is reduced. In a related art, the scheme for solving the problems is that a beam splitter prism is additionally arranged in a camera, so that one path of light entering the camera is sent to a polarized light image sensor, the other path of light is sent to an RGB image sensor, and the double-image sensor can clearly output images under an interference environment. However, as the beam-splitting prism is arranged in the camera, the size of the camera is increased, which is not beneficial to the hands of doctors, occupies the internal space of the camera, and is not beneficial to the additional installation of other functional components.

Disclosure of Invention

Based on this, it is necessary to overcome the defects of the prior art, and to provide a dual-optical-path adaptive lens and an endoscope apparatus, which can improve the operation efficiency, improve the definition of the image, and improve the operation efficiency, and occupy a relatively small space.

The technical scheme is as follows: a dual optical path adapter lens, the dual optical path adapter lens comprising:

the lens barrel is provided with a light inlet end and a light outlet end which are oppositely arranged, the light inlet end is used for being connected with an external endoscope hard lens, and the light outlet end is used for being connected with an external camera;

the focusing assembly and the light splitting piece are sequentially arranged in the lens barrel along the direction from the light inlet end to the light outlet end, the focusing assembly is used for receiving light rays output by the hard endoscope and focusing the light rays output by the hard endoscope, the light splitting piece is used for dividing the light rays subjected to focusing into a first path of light rays and a second path of light rays, and the first path of light rays and the second path of light rays are respectively output to the camera.

In one embodiment, the dual-optical-path adaptive lens further includes a polarizing element, where the polarizing element is configured to perform polarization processing on the first path of light, and the polarized first path of light is output to the camera; and/or

The first path of light rays and the second path of light rays are arranged in parallel.

In one embodiment, the light splitting member includes a light splitting prism, a light splitting film and a reflecting film, the light splitting prism is provided with a first surface and a second surface which are oppositely arranged, and a third surface and a fourth surface which are oppositely arranged, the first surface is relatively close to the light inlet end, the light splitting film is arranged on the third surface, and the reflecting film is arranged on the fourth surface.

In one embodiment, the first face is parallel to the second face, the third face is parallel to the fourth face, and the first face is disposed at an acute angle to the third face; and/or, the light splitting piece is arranged at the light emitting end; and/or, the inner wall of the lens barrel is provided with an inclined plane which is arranged at an included angle with the second path of light, and the inclined plane is connected with the fourth surface.

In one embodiment, the axial section of the light inlet end is circular; and/or the axial section of the light emitting end is semicircular, semi-elliptic or polygonal.

In one embodiment, the dual-optical-path adaptive lens further comprises a lens mount connected to the light inlet end, and the lens mount is further used for being connected to the endoscope hard lens.

In one embodiment, the dual-path adaptive lens further includes a lens cover connected to the light-emitting end, and the lens cover is provided with a first light-emitting hole corresponding to the first path of light, a first protection sheet disposed at the first light-emitting hole, a second light-emitting hole corresponding to the second path of light, and a second protection sheet disposed at the second light-emitting hole.

In one embodiment, the polarizing element is a polarizing film disposed on the first protective sheet.

In one embodiment, the dual-path adaptive lens further includes a waterproof gasket, and the waterproof gasket is disposed between the lens cover and the light-emitting end face.

An endoscope device comprises an adaptive lens, an endoscope hard lens and a camera, wherein the light inlet end is connected with the endoscope hard lens, the light outlet end is connected with the camera, the camera is provided with a polarized light image sensor and an RGB image sensor, the polarized light image sensor is used for sensing the first path of light, and the RGB image sensor is used for sensing the second path of light.

According to the double-light-path adaptive lens and the endoscope device, after the light splitting piece is additionally arranged in the lens barrel, under the action of the light splitting piece, light after focusing treatment is transmitted into the camera from the light emitting end in two paths, one path of light is further transmitted into the polarized light image sensor, the other path of light is transmitted into the RGB image sensor, the double-image sensor can clearly output images under an interference environment, and different functional imaging can be realized according to actual requirements. In addition, as the light splitting piece is not required to be integrated in the camera as in the related art, the structure of the camera is simplified, the size of the camera can be reduced to facilitate holding by a doctor, and meanwhile, the space vacated in the camera can facilitate adding other functional components.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an internal structure of a dual-optical-path adaptive lens according to an embodiment of the utility model;

fig. 2 is an exploded view of the structure shown in fig. 1.

10. A lens barrel; 11. a light inlet end; 12. a light outlet end; 20. a light splitting member; 21. a beam-splitting prism; 211. a first face; 212. a second face; 213. a third face; 214. a fourth face; 22. a light-splitting film; 23. a reflective film; 30. a polarizing element; 40. a lens base; 50. a lens cover; 51. a first light outlet hole; 52. a first protective sheet; 53. a second light outlet hole; 54. a second protective sheet; 55. a fastener; 60. and a waterproof gasket.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating an internal structure of a dual-optical-path adapter lens according to an embodiment of the utility model, and fig. 2 is a schematic diagram illustrating an exploded structure of the structure shown in fig. 1. An embodiment of the present utility model provides a dual-optical-path adapter lens, where the dual-optical-path adapter lens includes: a lens barrel 10, a focusing assembly (not shown in the drawings), and a spectroscopic member 20. The lens barrel 10 is provided with an optical inlet end 11 and an optical outlet end 12 which are oppositely arranged, wherein the optical inlet end 11 is used for being connected with an external endoscope hard lens (not shown in the figure), and the optical outlet end 12 is used for being connected with an external camera (not shown in the figure). The focusing assembly and the light splitting piece 20 are sequentially arranged inside the lens barrel 10 along the direction from the light inlet end 11 to the light outlet end 12, and the focusing assembly is used for receiving the light rays output by the hard endoscope and focusing the light rays output by the hard endoscope. The beam splitter 20 is used for splitting the light of the focusing process into a first path of light (shown by a broken line in fig. 1 by an arrow a) and a second path of light (shown by a broken line in fig. 1 by an arrow B). The first path of light and the second path of light are respectively output to the camera.

According to the double-light-path adaptive lens, after the light splitting piece 20 is additionally arranged in the lens barrel 10, under the action of the light splitting piece 20, light after focusing treatment is transmitted into the camera from the light emitting end 12 in two paths, one path is transmitted into the polarized light image sensor through polarization treatment, the other path is transmitted into the RGB image sensor, the double-image sensor can clearly output images under an interference environment, and different functional imaging can be realized according to actual requirements. In addition, since the light-splitting member 20 is not required to be integrated in the camera as in the related art, the structure of the camera is simplified, the size of the camera can be reduced to facilitate the holding of a doctor, and the space vacated inside the camera can facilitate the addition of other functional components.

The focusing assembly comprises at least one optical lens, and the focusing assembly plays a role in adjusting focal length so as to improve image quality.

In one embodiment, the dual-path adapter lens further includes a polarizing element 30. The polarizing element 30 is configured to perform polarization processing on the first light beam, and the polarized first light beam and the polarized second light beam are respectively output to the camera. Therefore, one path is transmitted to the polarized light image sensor through polarization treatment, the other path is transmitted to the RGB image sensor, and the double-image sensor can clearly output images under interference environment, so that different functional imaging can be realized according to actual requirements.

It should be noted that, the RGB image sensor converts an RGB optical signal in a white light signal on a photosensitive area thereof into a corresponding electrical signal, that is, an RGB image signal, by using a photoelectric conversion function of a photoelectric device. The RGB image sensor is capable of simultaneously collecting light signals of three colors of red (R), green (G), and blue (B) and converting the light signals of the three colors into electrical signals. The RGB image sensor in the present embodiment is an RGB image sensor having a resolution of 4K, such as a CCD image sensor and a CMOS image sensor.

It should be noted that the polarized light image sensor converts the polarized light signal in the white light and/or the polarized light signal in the polarized light on the photosensitive area thereof into a corresponding electrical signal, that is, a polarized information image signal, by using the photoelectric conversion function of the photoelectric device. The polarized light signal is a light signal with a certain polarized angle, and the polarized light image sensor can sense the polarized light signal with a preset polarized angle in white light and/or polarized light and convert the polarized light signal into a corresponding electric signal. The polarized light image sensor of this embodiment is an image sensor having 8 polarization angles of 0 °, 30 °, 45 °, 60 °, 90 °, 120 °, 135 ° and 150 °, and in other embodiments, the polarization angle of the polarized light image sensor may be other angles, which are not limited herein.

Referring to fig. 1 and 2, in one embodiment, the first light and the second light are disposed parallel to each other. Thus, two paths of light rays which are arranged in parallel can smoothly enter the camera and are respectively sensed by the polarized light image sensor and the RGB image sensor.

It should be noted that, the light splitting element 20 may be arranged in a plurality of modes, and may be flexibly adjusted and arranged according to actual requirements, so long as the received light can be split into two paths of light arranged parallel to each other, for example, which cannot be listed in this embodiment.

Referring to fig. 1 and 2, in one embodiment, the light splitting element 20 includes a light splitting prism 21, a light splitting film 22 and a reflecting film 23. The prism 21 includes a first surface 211 and a second surface 212 that are disposed opposite to each other, and a third surface 213 and a fourth surface 214 that are disposed opposite to each other. The first surface 211 is relatively close to the light-entering end 11, the light-splitting film 22 is disposed on the third surface 213, and the reflective film 23 is disposed on the fourth surface 214. Thus, when the light beam output by the hard endoscope is incident on the first surface 211 and enters the third surface 213, the light beam is split by the light splitting film 22 on the third surface 213, one path of light beam split by the light splitting film 22 is output to the camera after passing through the second surface 212 and the focusing assembly, one path of light beam reflected by the light splitting film 22 enters the fourth surface 214, and is further reflected by the reflecting film 23 on the fourth surface 214, so that the light beam is reflected to the second surface 212 and is output to the camera after being processed by the focusing assembly.

Referring to fig. 1 and 2, in one embodiment, the first surface 211 is parallel to the second surface 212, the third surface 213 is parallel to the fourth surface 214, and the first surface 211 and the third surface 213 are disposed at an acute angle.

Referring to fig. 1 and fig. 2, in one embodiment, a light splitting element 20 is disposed at the light emitting end 12; and/or, the inner wall of the lens barrel 10 is provided with an inclined plane which is arranged at an included angle with the second path of light, and the inclined plane is connected with the fourth surface 214. Thus, on one hand, the light splitting piece 20 is convenient to install and operate at the light emitting end 12; on the other hand, the light splitting member 20 is connected to the inclined surface through the fourth surface 214 so as to be stably mounted on the light emitting end 12.

Referring to fig. 1 and 2, in one embodiment, the axial cross section of the light inlet 11 may be configured into various shapes according to practical needs, including but not limited to various regular shapes and irregular shapes such as circular, elliptical, polygonal, etc. When the axial section of the light inlet end 11 is set to be circular, in the combined connection process of the light inlet end 11 and the endoscope hard lens, the two are allowed to have a rotation angle in the circumferential direction, so that the assembly efficiency is higher.

Referring to fig. 1 and 2, in one embodiment, the axial cross section of the light emitting end 12 may be configured into various shapes according to practical needs, including but not limited to various regular shapes and irregular shapes such as circular, semicircular, elliptical, semi-elliptical, polygonal, etc. When the axial section of the light emitting end 12 is non-circular, for example, a structure formed by combining a square arc section and a circular arc section, for example, a structure formed by combining circle center arc sections with different diameter sizes, and the like, the assembly position of the lens barrel 10 and the camera is uniquely determined, and after assembly, the first path of light and the second path of light can be respectively and correspondingly output to the polarized light image sensor and the RGB image sensor of the camera.

Referring to fig. 1 and 2, in one embodiment, the dual-optical-path adaptive lens further includes a lens holder 40 connected to the light-entering end 11. The lens mount 40 is also used in connection with an endoscope hard lens.

Referring to fig. 1 and 2, in one embodiment, the dual-path adapter lens further includes a lens cover 50 connected to the light-emitting end 12. The lens cover 50 is provided with a first light outlet 51 corresponding to the first path of light, a first protection sheet 52 arranged at the first light outlet 51, a second light outlet 53 corresponding to the second path of light, and a second protection sheet 54 arranged at the second light outlet 53. Alternatively, the polarizing element 30 is a polarizing film disposed on the first protective sheet 52. Thus, the first protective sheet 52 and the second protective sheet 54 each function as a seal. In order not to affect the light emission, the first protective sheet 52 and the second protective sheet 54 are made of light-transmitting materials. In addition, after the polarizing element 30 is attached to the first protective sheet 52, the first protective sheet 52 polarizes the light passing through.

Optionally, the lens cover 50 is removably secured to the light-exiting end 12 using at least one fastener 55. Fasteners 55 include, but are not limited to, screws, bolts, pins, rivets, and the like.

Referring to fig. 1 and 2, in one embodiment, the dual-path adapter lens further includes a waterproof gasket 60. The waterproof gasket 60 is disposed between the lens cover 50 and the end face of the light-emitting end 12. In this way, the waterproof gasket 60 can improve the sealing property between the lens cover 50 and the end face of the light-emitting end 12.

Referring to fig. 1 and 2, in one embodiment, an endoscope apparatus includes the dual-optical-path adapting lens of any of the above embodiments, and further includes an endoscope hard lens and a camera, where the light inlet end 11 is connected to the endoscope hard lens, the light outlet end 12 is connected to the camera, the camera is provided with a polarized light image sensor and an RGB image sensor, the polarized light image sensor is used for sensing a first path of light, and the RGB image sensor is used for sensing a second path of light.

In the above endoscope apparatus, after the light-splitting member 20 is additionally installed inside the lens barrel 10, under the action of the light-splitting member 20, the light after focusing treatment is transmitted into the camera from the light-emitting end 12 in two paths, and then one path is transmitted into the polarized light image sensor through polarization treatment, and the other path is transmitted into the RGB image sensor, and the dual-image sensor can clearly output images under the interference environment, so that imaging with different functions can be realized according to actual requirements. In addition, since the light-splitting member 20 is not required to be integrated in the camera as in the related art, the structure of the camera is simplified, the size of the camera can be reduced to facilitate the holding of a doctor, and the space vacated inside the camera can facilitate the addition of other functional components.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Claims

1. The utility model provides an adapter lens of two light paths which characterized in that, adapter lens of two light paths includes:

2. The dual-optical-path adapting lens according to claim 1, wherein the light splitting member comprises a light splitting prism, a light splitting film and a reflecting film, the light splitting prism is provided with a first surface and a second surface which are oppositely arranged, and a third surface and a fourth surface which are oppositely arranged, the first surface is relatively close to the light inlet end, the light splitting film is arranged on the third surface, and the reflecting film is arranged on the fourth surface.

3. The dual-optical-path adapter lens according to claim 2, wherein the first face is parallel to the second face, the third face is parallel to the fourth face, and the first face and the third face are disposed at an acute angle; and/or, the light splitting piece is arranged at the light emitting end; and/or, the inner wall of the lens barrel is provided with an inclined plane which is arranged at an included angle with the second path of light, and the inclined plane is connected with the fourth surface.

4. The dual-optical-path adaptive lens according to claim 1, wherein an axial section of the light inlet end is circular; and/or the axial section of the light emitting end is semicircular, semi-elliptic or polygonal.

5. The dual-path adapter lens of claim 1, further comprising a lens mount coupled to the light entry end, the lens mount further configured to couple to the endoscope hard lens.

6. The dual-optical-path adaptive lens according to claim 1, further comprising a polarizing element, wherein the polarizing element is configured to perform polarization processing on the first path of light, and the polarized first path of light is output to the camera; and/or

7. The dual-path adapter lens according to claim 6, further comprising a lens cover connected to the light-emitting end, wherein the lens cover is provided with a first light-emitting hole corresponding to the first path of light, a first protection sheet disposed at the first light-emitting hole, a second light-emitting hole corresponding to the second path of light, and a second protection sheet disposed at the second light-emitting hole.

8. The dual optical path adapter lens according to claim 7, wherein the polarizing element is a polarizing film disposed on the first protective sheet.

9. The dual-optical-path adapter lens of claim 7, further comprising a waterproof gasket disposed between the lens cover and the light-exiting end face.

10. An endoscope device, characterized in that the endoscope device comprises the adaptive lens according to any one of claims 1 to 9, and further comprises an endoscope hard lens and a camera, wherein the light inlet end is connected with the endoscope hard lens, the light outlet end is connected with the camera, the camera is provided with a polarized light image sensor and an RGB image sensor, the polarized light image sensor is used for sensing the first path of light, and the RGB image sensor is used for sensing the second path of light.