CN112987281B - Optical fiber image transmission light source endoscope light source increasing structure and preparation method - Google Patents
Optical fiber image transmission light source endoscope light source increasing structure and preparation method Download PDFInfo
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- CN112987281B CN112987281B CN202110310341.9A CN202110310341A CN112987281B CN 112987281 B CN112987281 B CN 112987281B CN 202110310341 A CN202110310341 A CN 202110310341A CN 112987281 B CN112987281 B CN 112987281B
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- lens
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- image transmission
- light source
- light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2461—Illumination
- G02B23/2469—Illumination using optical fibres
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2423—Optical details of the distal end
- G02B23/243—Objectives for endoscopes
Abstract
The invention discloses an optical fiber image transmission light source endoscope light source increasing structure and a preparation method, belonging to the technical field of endoscope optical fiber systems, and comprising an image transmission optical fiber main body responsible for image transmission, wherein the inner side of the image transmission optical fiber main body is provided with a plurality of optical fiber bundles which are arranged in parallel, the end surface of the image transmission optical fiber main body is provided with a light increasing lens module, the bottom of the light increasing lens module is in contact with the end surface of the optical fiber bundle corresponding to the inner side of the image transmission optical fiber main body in a butting way, the light increasing lens module consists of an outer side lens and an inner side lens, the outer side lens and the inner side lens are both concave lenses, and the outer side lens and the inner side lens are used for increasing the diffusion angle of light; through having designed this scheme, utilize the concave lens of terminal surface multiplicable pass image optic fibre main part in the optical fiber bundle transmission light divergence angle when shooting out, and utilize the light to have the characteristic of reversibility, and then increase the illumination and get for instance the scope, make things convenient for medical personnel to look over the pathological change condition of detection position.
Description
Technical Field
The invention belongs to the technical field of endoscope optical fiber systems, and particularly relates to an optical fiber image transmission light source endoscope light source adding structure and a preparation method.
Background
The optical fibre industry endoscope is a new optical instrument formed by combining optical fibre with optical, precision mechanical and electronic techniques, and it utilizes the light-transmitting and image-transmitting principle of optical fibre and its soft bending property, and can conveniently implement direct and quick examination of concealed position, and has no need of disassembly of equipment and additional illumination, and its interior condition can be clear at a glance, and it can be visual and side-looking, and has extensive application in medicine.
To facilitate lesion detection, it is desirable to illuminate the area within the body cavity as closely as possible to match the field of view of the camera system, with the area illuminated by the light being determined by the divergence angle of the illumination light.
However, in the existing scheme, the light divergence angle is increased by adopting a glass rod or a lens mode, and in actual use, the angle of emitted light is limited, so that the range of illumination and image capture of the endoscope is limited, and therefore, an optical fiber image transmission light source endoscope light source adding structure and a preparation method are provided.
Disclosure of Invention
The invention aims to provide an optical fiber image transmission light source endoscope light source adding structure and a preparation method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an optic fibre passes like light source endoscope light source and increases structure, is responsible for passing like the biography optic fibre main part, the inboard of passing like the optic fibre main part has the optic fibre bundle that many mutual parallels were arranged, the terminal surface that passes like the optic fibre main part installs the lens module of increasing light, the bottom of the lens module of increasing light is contradicted with the terminal surface that passes like the optic fibre bundle that optic fibre main part inboard corresponds and is contacted, the lens module of increasing light comprises outside lens and inboard lens, outside lens and inboard lens are concave lens, outside lens and inboard lens are used for increasing the diffusion angle of light.
Furthermore, the outer side lens is arranged on the top of the inner side lens, the bottom surface of the outer side lens is matched with the top surface of the inner side lens, and the bottom of the inner side lens is in contact with the end surface of the corresponding optical fiber bundle on the inner side of the image transmission optical fiber main body in an interference mode.
Further, the top surface of the outer side lens is an outer concave surface, the bottom surface of the outer side lens is a second inner concave surface, and the section of the outer side lens is a trapezoid with an inner concave cambered surface at the top and the bottom.
Furthermore, a first concave surface is formed in the bottom of the inner side lens, the inner side lens is a cylindrical lens with the first concave surface at the bottom, an outer convex surface is arranged at the top of the first concave surface, and an annular extending portion is integrally arranged on the outer side of the top of the inner side lens in the circumferential direction.
Further, the outer convex surface extends to an outer side wall of the annular extension portion.
Further, the bottom of the inner lens is inserted into the inner side of the image transmission optical fiber body.
Further, it is characterized in that: the diameter of the optical fiber bundle is 160-240 mu m.
A method for preparing an optical fiber image transmission light source endoscope light source increasing structure comprises the following steps:
A. reserving a space at the top of the inner side of the image transmission optical fiber main body, namely, the top end of the optical fiber bundle is positioned below the top end of the image transmission optical fiber main body;
B. the bottom surface of the outer lens is coupled with the top surface of the inner lens, the bottom surface of the outer lens and the top surface of the inner lens are coupling surfaces, the coupling surfaces of the outer lens and the inner lens are completely attached, the middle point of the outer lens and the middle point of the inner lens are positioned on the same straight line, and the straight line is superposed with the axis of the image transmission optical fiber main body;
C. a first inner concave surface is reserved at the bottom of the inner side lens, the inner side lens is a cylindrical lens with a first inner concave surface at the bottom and an outer convex surface at the top, the outer convex surface extends to the outer side wall of the annular extending part, and the annular extending part on the outer side of the inner side lens receives light rays which are subjected to diffuse reflection at the corresponding part, so that the brightness of the inner side lens is improved conveniently;
D. the bottom of the inner lens is inserted into the inner side of the top of the image transmission optical fiber main body, and the bottom surface of the inner lens is coupled with the top surface of the optical fiber bundle.
Compared with the prior art, the invention has the beneficial effects that:
1. through having designed this scheme, utilize the concave lens of terminal surface multiplicable pass image optic fibre main part in the optical fiber bundle transmission light divergence angle when shooting out, and utilize the light to have the characteristic of reversibility, and then increase the illumination and get for instance the scope, make things convenient for medical personnel to look over the pathological change condition of detection position.
2. And the outer convex surface at the top of the inner side lens is convenient to be attached to the outer concave surface at the bottom of the outer side lens, so that the folding loss of light rays can be reduced, and the brightness of image taking is further ensured.
3. Through the annular extension part arranged at the top of the inner side lens, the cross section area of the annular extension part is larger than the bottom area of the outer side lens, and the part which is not overlapped with the outer side lens is convenient to receive light rays which are subjected to diffuse reflection at the corresponding part, so that the brightness of the inner side lens is convenient to improve, and the light rays are convenient to transmit.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a split structure according to the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a light path diagram of the light entering the present invention;
in the figure: 1. an image transmission optical fiber main body; 101. a fiber optic bundle; 2. a intensifying lens module; 201. an outer lens; 202. an inner lens; 203. an annular extension; 204. a first concave surface; 205. an outer convex surface; 206. an outer concave surface; 207. a second concave surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: an optical fiber image transmission light source endoscope light source increasing structure comprises an image transmission optical fiber main body 1 which is responsible for image transmission, a plurality of optical fiber bundles 101 which are arranged in parallel are arranged on the inner side of the image transmission optical fiber main body 1, an intensifying lens module 2 is arranged on the end surface of the image transmission optical fiber main body 1, the bottom of the intensifying lens module 2 is in contact with the end surface of the optical fiber bundle 101 corresponding to the inner side of the image transmission optical fiber main body 1 in an abutting mode, the intensifying lens module 2 is composed of an outer lens 201 and an inner lens 202, the outer lens 201 and the inner lens 202 are both concave lenses, the outer lens 201 and the inner lens 202 are used for increasing the diffusion angle of light, the outer lens 201 is arranged on the top of the inner lens 202, the bottom surface of the outer lens 201 is matched with the top surface of the inner lens 202, the bottom of the inner lens 202 is in contact with the end surface of the optical fiber bundle 101 corresponding to the inner side of the image transmission optical fiber main body 1 in an abutting mode, and the top surface of the outer lens 201 is an outer concave surface 206, the bottom surface of outside lens 201 is second interior concave surface 207, and the cross-section of outside lens 201 all has the trapezoidal of indent cambered surface for top and bottom, and first interior concave surface 204 has been seted up to the bottom of inboard lens 202, and inboard lens 202 has the cylindric lens of first interior concave surface 204 for the bottom, and the top of first interior concave surface 204 has outer convex surface 205, and the outside at inboard lens 202 top is provided with annular extension 203 along the circumferencial direction integral type.
In this embodiment, the outer convex surface 205 extends to the outer side wall of the annular extension portion 203, so as to increase the cross-sectional area, and the bottom of the inner lens 202 is inserted into the inner side of the image transmitting fiber body 1.
In this embodiment, the diameter of the optical fiber bundle 101 is 160 to 240 μm.
A method for preparing an optical fiber image transmission light source endoscope light source increasing structure comprises the following steps:
A. reserving a space at the top of the inner side of the image transmission optical fiber main body 1, namely, the top end of the optical fiber bundle 101 is positioned below the top end of the image transmission optical fiber main body 1;
B. the bottom surface of the outer lens 201 is coupled with the top surface of the inner lens 202, the bottom surface of the outer lens 201 and the top surface of the inner lens 202 are coupling surfaces, so that the coupling surfaces of the outer lens 201 and the inner lens 202 are completely attached, the middle point of the outer lens 201 and the middle point of the inner lens 202 are positioned on the same straight line, and the straight line is superposed with the axis of the image transmission optical fiber body 1;
C. a first inner concave surface 204 is reserved at the bottom of the inner lens 202, the inner lens 202 is a cylindrical lens with a first inner concave surface 204 at the bottom and an outer convex surface 205 at the top, the outer convex surface 205 extends to the outer side wall of the annular extension part 203, and the annular extension part 203 at the outer side of the inner lens 202 receives light rays which are subjected to diffuse reflection at the corresponding part, so that the brightness of the inner lens is improved;
D. the bottom of the inner lens 202 is inserted inside the top of the image-transmitting fiber body 1, and the bottom of the inner lens 202 is coupled to the top of the fiber bundle 101.
The working principle and the using process of the invention are as follows: during preparation, a space is reserved at the top of the inner side of the image transmission optical fiber body 1, namely the top end of the optical fiber bundle 101 is positioned below the top end of the image transmission optical fiber body 1, the bottom surface of the outer lens 201 is coupled with the top surface of the inner lens 202, the bottom surface of the outer lens 201 and the top surface of the inner lens 202 are coupling surfaces, so that the coupling surfaces of the outer lens 201 and the inner lens 202 are completely attached, the middle point of the outer lens 201 and the middle point of the inner lens 202 are positioned on the same straight line, the straight line is superposed with the axis of the image transmission optical fiber body 1, the bottom of the inner lens 202 is inserted into the inner side of the top of the image transmission optical fiber body 1, and the bottom surface of the inner lens 202 is coupled with the top surface of the optical fiber bundle 101;
the light is transmitted through the optical fiber bundle 101 and emitted from the top end, the light is emitted through the inner lens 202 and the outer lens 201 at the top, because the inner lens 202 and the outer lens 201 are both concave lenses with the middle portions thinner than the edges, the light is emitted to the outer side, and meanwhile, by utilizing the characteristic of reversibility of the light, a light path diagram during light entering is shown in fig. 4, so that the illumination and image capturing range is increased, medical personnel can conveniently check the pathological changes of the detected part, the divergence angle can be further increased by adopting double lenses, the outer convex surface 205 at the top of the inner lens 202 is conveniently attached to the outer concave surface 206 at the bottom of the outer lens 201, the breakage of the light can be reduced, the image capturing brightness can be ensured, through the annular extension portion 203 at the top of the inner lens 202, the cross-sectional area is larger than the bottom area of the outer lens 201, and the portion overlapped with the outer lens 201 is convenient for receiving the light which is subjected to diffuse reflection at the corresponding part, the brightness of the inner lens 202 is improved, and the light transmission is facilitated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The utility model provides an optic fibre passes like light source endoscope light source and increases structure, its characterized in that, including the biography like optical fiber main part (1) of being responsible for passing like, the inboard of passing like optical fiber main part (1) has many optic fibre bundles (101) of arranging parallel to each other, the terminal surface of passing like optical fiber main part (1) is installed and is increased light lens module (2), the bottom of increasing light lens module (2) and the terminal surface of passing like optical fiber main part (1) inboard corresponding optic fibre bundle (101) conflict the contact, it comprises outside lens (201) and inside lens (202) to increase light lens module (2), outside lens (201) and inside lens (202) are concave lens, outside lens (201) and inside lens (202) are used for increasing the diffusion angle of light, first face (204) have been seted up to the bottom of inside lens (202), inside lens (202) are the cylindric lens that the bottom has first concave surface (204), the top of the first inner concave surface (204) is provided with an outer convex surface (205), the outer side of the top of the inner side lens (202) is integrally provided with an annular extension part (203) along the circumferential direction, and the outer convex surface (205) extends to the outer side wall of the annular extension part (203).
2. The light source adding structure of the optical fiber image transmission light source endoscope of claim 1, wherein: the outer side lens (201) is arranged at the top of the inner side lens (202), the bottom surface of the outer side lens (201) is matched with the top surface of the inner side lens (202), and the bottom of the inner side lens (202) is in contact with the end surface of the optical fiber bundle (101) corresponding to the inner side of the image transmission optical fiber main body (1) in an abutting mode.
3. The light source adding structure of the optical fiber image transmission light source endoscope of claim 1, wherein: the top surface of outside lens (201) is outer concave surface (206), the bottom surface of outside lens (201) is second interior concave surface (207), the cross-section of outside lens (201) all is the trapezoidal that top and bottom all have the indent cambered surface.
4. The light source adding structure of the optical fiber image transmission light source endoscope of claim 1, wherein: the bottom of the inner lens (202) is inserted into the inner side of the image transmission optical fiber body (1).
5. The light source adding structure of the optical fiber image transmission light source endoscope of claim 1, wherein: the diameter of the optical fiber bundle (101) is 160-240 mu m.
6. A method for preparing an optical fiber image transmission light source endoscope light source increasing structure is characterized by comprising the following steps:
A. reserving a space at the top of the inner side of the image transmission optical fiber main body (1), namely, the top end of the optical fiber bundle (101) is positioned below the top end of the image transmission optical fiber main body (1);
B. the bottom surface of the outer lens (201) is coupled with the top surface of the inner lens (202), the bottom surface of the outer lens (201) and the top surface of the inner lens (202) are coupling surfaces, the coupling surfaces of the outer lens (201) and the inner lens (202) are completely attached, the middle point of the outer lens (201) and the middle point of the inner lens (202) are located on the same straight line, and the straight line is superposed with the axis of the image-transmitting optical fiber main body (1);
C. a first inner concave surface (204) is reserved at the bottom of the inner side lens (202), the inner side lens (202) is a cylindrical lens with the first inner concave surface (204) at the bottom and an outer convex surface (205) at the top, the outer convex surface (205) extends to the outer side wall of the annular extending part (203), and the annular extending part (203) on the outer side of the inner side lens (202) receives light rays which are subjected to diffuse reflection at a corresponding part, so that the brightness of the inner side lens is improved;
D. the bottom of the inner lens (202) is inserted into the inner side of the top of the image transmission optical fiber main body (1), and the bottom surface of the inner lens (202) is coupled with the top surface of the optical fiber bundle (101).
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| CN202110310341.9A CN112987281B (en) | 2021-03-23 | 2021-03-23 | Optical fiber image transmission light source endoscope light source increasing structure and preparation method |
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| CN112987281B true CN112987281B (en) | 2022-07-22 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6064321A (en) * | 1983-09-20 | 1985-04-12 | Olympus Optical Co Ltd | Lighting optical system of endoscope |
| JPH07104492B2 (en) * | 1985-12-28 | 1995-11-13 | オリンパス光学工業株式会社 | Illumination optical system for endoscope |
| JPH07104494B2 (en) * | 1987-06-26 | 1995-11-13 | オリンパス光学工業株式会社 | Illumination optical system for endoscope |
| JP3060245B2 (en) * | 1991-02-05 | 2000-07-10 | オリンパス光学工業株式会社 | Endoscope illumination optical system |
| FR2834348B1 (en) * | 2001-12-28 | 2004-02-27 | Mauna Kea Technologies | MINIATURIZED FOCUSING OPTICAL HEAD, ESPECIALLY FOR AN ENDOSCOPE |
| CN103392143B (en) * | 2011-10-28 | 2015-08-05 | 奥林巴斯医疗株式会社 | Lighting optical system for endoscope |
| JP5891208B2 (en) * | 2013-08-13 | 2016-03-22 | Hoya株式会社 | Endoscope illumination optics |
| EP3348182A1 (en) * | 2015-09-09 | 2018-07-18 | Olympus Corporation | Endoscope illumination optical system |
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