CN114755816A - Endoscope lens structure for reducing optical signal interference - Google Patents
Endoscope lens structure for reducing optical signal interference Download PDFInfo
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- CN114755816A CN114755816A CN202210297260.4A CN202210297260A CN114755816A CN 114755816 A CN114755816 A CN 114755816A CN 202210297260 A CN202210297260 A CN 202210297260A CN 114755816 A CN114755816 A CN 114755816A
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Classifications
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00163—Optical arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
- A61B1/0661—Endoscope light sources
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- 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
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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
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
- G02B23/2484—Arrangements in relation to a camera or imaging device
Abstract
The invention discloses an endoscope lens structure for reducing optical signal interference, which comprises: the lens comprises a first lens assembly and a second lens assembly which is at least partially arranged at the outer edge of the first lens assembly, wherein a light-tight layer is arranged between the first lens assembly and the second lens assembly; the image sensor is arranged on the first lens component and a second distance d2 is arranged between the light source component and the second lens component, or the image sensor is arranged on the first lens component and the light source component is arranged on the second lens component. The light source and the image sensor respectively realize the functions of illumination and image receiving through the independent lens with the non-light-pervious layer, effectively avoid the interference of the light source on the optical signal of the image sensor and ensure the good and stable imaging quality of the image sensor.
Description
Technical Field
The invention relates to the technical field of endoscopes, in particular to an endoscope lens structure for reducing optical signal interference.
Background
The existing endoscope lens light source and the image sensor realize illumination and image receiving through the same lens, and the light source can generate interference on an optical signal of the image sensor to influence the imaging quality of the image sensor.
Disclosure of Invention
In view of the above, the present invention provides an endoscope lens structure for reducing optical signal interference.
In order to achieve the purpose, the invention adopts the technical scheme that:
an endoscope lens structure for reducing optical signal interference, comprising:
the lens comprises a first lens assembly and a second lens assembly which is at least partially arranged at the outer edge of the first lens assembly, wherein a non-light-pervious layer is arranged between the first lens assembly and the second lens assembly;
a light source assembly and an image sensor, wherein,
the light source assembly is abutted against the second lens assembly, and a first distance d1 is formed between the image sensor and the first lens assembly,
Or the image sensor is abutted against the first lens component, and a second distance d2 is formed between the light source component and the second lens component,
Or the image sensor is abutted against the first lens component and the light source component is abutted against the second lens component.
In the above endoscope lens structure for reducing optical signal interference, the second lens assembly is an annular structure, the second lens assembly surrounds the first lens assembly, and the second lens assembly and the first lens assembly are coaxially arranged.
In the endoscope lens structure for reducing optical signal interference, the first lens assembly and the image sensor are coaxially arranged.
The endoscope lens structure for reducing the interference of the optical signals comprises a plurality of light source assemblies, and the distances from the light source assemblies to the second lens assembly are equal.
In the endoscope lens structure for reducing optical signal interference, the light-impermeable layer is disposed on a side surface of the first lens assembly and/or a side surface of the second lens assembly.
In the endoscope lens structure for reducing optical signal interference, the light-tight layer is made of one or more of a black high-polymer waterproof coating, a nano composite ceramic coating, a black water-based glass paint and a glass flake coating.
In the endoscope lens structure for reducing optical signal interference, a side surface of the first lens assembly is an inclined surface, and an outer diameter of an end surface of the first lens assembly close to the image sensor is smaller than an outer diameter of an end surface of the first lens assembly far away from the image sensor; the shape of the side face of the second lens assembly is matched with the shape of the side face of the first lens assembly.
In the endoscope lens structure for reducing optical signal interference, the side surface of the first lens assembly is an inclined surface, and the outer diameter of the end surface of the first lens assembly close to the image sensor is larger than the outer diameter of the end surface of the first lens assembly far away from the image sensor; the shape of the side face of the second lens assembly is matched with the shape of the side face of the first lens assembly.
In the endoscope lens structure for reducing optical signal interference, the thickness of the first lens assembly is the same as that of the second lens assembly.
In the endoscope lens structure for reducing optical signal interference, the thickness of the first lens assembly is different from the thickness of the second lens assembly.
In the endoscope lens structure for reducing optical signal interference, the thickness of the first lens assembly is smaller than that of the second lens assembly.
In the above endoscope lens structure for reducing optical signal interference, the first distance d1 is: 0 ≦ d1 ≦ 5 mm.
In the above endoscope lens structure for reducing optical signal interference, the second distance d2 is: 0 ≦ d1 ≦ 5 mm.
The above endoscope lens structure for reducing optical signal interference further includes: the light source assembly comprises an outer shell and an inner shell, wherein at least one part of the inner shell is detachably arranged in the outer shell, the outer shell is used for fixing the first lens assembly and the second lens assembly, and the inner shell is used for fixing the light source assembly and the image sensor.
In the above endoscope lens structure for reducing optical signal interference, the first lens assembly and the second lens assembly, and the second lens assembly and the housing are hermetically arranged.
In the endoscope lens structure for reducing optical signal interference, the first lens component and the second lens component are optical lenses or plane glass.
In the above endoscope lens structure for reducing optical signal interference, the first lens assembly and the second lens assembly are preferably Al2O3Any kind of optical glass from the catalog of Schott, Ohara, Sumita, polymethyl methacrylate (PMMA) or Polycarbonate (PC).
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) the light source and the image sensor respectively realize the functions of illumination and image receiving through the independent lens with the non-light-pervious layer, effectively avoid the interference of the light source on the optical signal of the image sensor and ensure the good and stable imaging quality of the image sensor.
Drawings
Fig. 1 is a schematic view of an endoscope lens structure for reducing optical signal interference according to the present invention.
Fig. 2 is a schematic diagram of a first embodiment of an endoscope lens structure of the present invention for reducing optical signal interference.
Fig. 3 is a schematic diagram of a second embodiment of the endoscope lens structure of the present invention for reducing optical signal interference.
Fig. 4 is a schematic diagram of a fifth embodiment of the endoscope lens structure of the present invention for reducing optical signal interference.
Fig. 5 is a schematic diagram of a fifth embodiment of the endoscope lens structure of the present invention for reducing optical signal interference.
Fig. 6 is a schematic diagram of a fifth embodiment of the endoscope lens structure of the present invention for reducing optical signal interference.
In the drawings: 11. a second lens assembly; 12. a first lens assembly; 2. a light source assembly; 21. a light source; 22. a circuit board; 23. a cable; 3. an image sensor; 4. a housing; 41. a housing; 42. an inner shell.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Fig. 1 is a schematic diagram of an endoscope lens structure for reducing optical signal interference according to the present invention, fig. 2 is a schematic diagram of a first embodiment of an endoscope lens structure for reducing optical signal interference according to the present invention, fig. 3 is a schematic diagram of a second embodiment of an endoscope lens structure for reducing optical signal interference according to the present invention, fig. 4 is a schematic diagram of a fifth embodiment of an endoscope lens structure for reducing optical signal interference according to the present invention, fig. 5 is a schematic diagram of a fifth embodiment of an endoscope lens structure for reducing optical signal interference according to the present invention, fig. 6 is a schematic diagram of a fifth embodiment of an endoscope lens structure for reducing optical signal interference according to the present invention, and fig. 1 to fig. 6 show an endoscope lens structure for reducing optical signal interference according to a preferred embodiment, including: the lens comprises a first lens assembly 12 and a second lens assembly 11 at least partially arranged at the outer edge of the first lens assembly 12, wherein a non-light-pervious layer is arranged between the first lens assembly 12 and the second lens assembly 11. Further comprising: the image sensor includes a light source assembly 2 and an image sensor 3, wherein the light source assembly 2 abuts against the second lens assembly 11 and a first distance d1 is provided between the image sensor 3 and the first lens assembly 12, or the image sensor 3 abuts against the first lens assembly 12 and a second distance d2 is provided between the light source assembly 2 and the second lens assembly 11, or the image sensor 3 abuts against the first lens assembly 12 and the light source assembly 2 abuts against the second lens assembly 11.
Further, as a preferred embodiment, the second lens element 11 is an annular structure, the second lens element 11 surrounds the first lens element 12, and the second lens element 11 and the first lens element 12 are coaxially disposed.
Preferably, the first lens assembly 12 is circular and the second lens assembly 11 is circular.
In other preferred embodiments, the first lens component 12 may have other shapes such as a rectangular shape, and the second lens component 11 may have a ring shape that closely conforms to the outer edge of the first lens component 12.
In other embodiments, the side surface of the first lens component 12 and the side surface of the second lens component 11 may be only partially attached, for example, the second lens component 11 is only disposed on one side of the first lens component 12, i.e., only one light source 21 may be used.
Further, as a preferred embodiment, the first lens assembly 12 is disposed coaxially with the image sensor 3.
Further, as a preferred embodiment, the lens assembly includes a plurality of light source modules 2, and the distances from the light source modules 2 to the second lens assembly 11 are equal.
Further, in a preferred embodiment, an opaque layer is disposed on the side of first lens component 12 and/or the side of second lens component 11.
Further, as a preferred embodiment, the opaque layer is made of one or more of a black polymer waterproof coating, a nano composite ceramic coating, a black water-based glass paint and a glass flake coating.
Further, as a preferred embodiment, the side surface of the first lens component 12 is an inclined surface, and the outer diameter of the end surface of the first lens component 12 close to the image sensor 3 is smaller than the outer diameter of the end surface of the first lens component 12 far from the image sensor 3; the shape of the side of the second lens assembly 11 matches the shape of the side of the first lens assembly 12.
Further, as a preferred embodiment, a side surface of the first lens element 12 is a bevel, and an outer diameter of an end surface of the first lens element 12 close to the image sensor 3 is larger than an outer diameter of an end surface of the first lens element 12 far from the image sensor 3; the shape of the side of the second lens assembly 11 matches the shape of the side of the first lens assembly 12.
Specifically, the bevel refers to a state in which the boundary of the first lens component 12 is beveled in the cross-sectional views such as fig. 2 and 3. Since the first lens element 12 is substantially three-dimensional, the lateral surface of the first lens element 12 is substantially annular, and the first lens element 12 is substantially truncated.
More specifically, the shape of the side of the second lens component 11 matching the shape of the side of the first lens component 12 means that at least a portion of the side of the second lens component 11 can closely conform to the side of the first lens component 11.
Further, as a preferred embodiment, the thickness of the first lens assembly 12 is the same as the thickness of the second lens assembly 11.
Further, as a preferred embodiment, the thickness of the first lens assembly 12 is different from the thickness of the second lens assembly 11.
Further, as a preferred embodiment, the thickness of the first lens assembly 12 is smaller than that of the second lens assembly 11.
Further, as a preferred embodiment, the first spacing d1 is: 0 ≦ d1 ≦ 5 mm.
Further, as a preferred embodiment, the second distance d2 is: 0 ≦ d1 ≦ 5 mm.
Further, as a preferred embodiment, the method further comprises: the housing 4 includes an outer shell 41 and an inner shell 42, at least a portion of the inner shell 42 is detachably disposed inside the outer shell 41, the outer shell 41 is used for fixing the first lens assembly 12 and the second lens assembly 11, and the inner shell 42 is used for fixing the light source assembly 2 and the image sensor 3.
Further, as a preferred embodiment, the first lens assembly 12 and the second lens assembly 11 are hermetically disposed, and the second lens assembly 11 and the housing 41 are hermetically disposed.
The first and second lens assemblies 12, 11 serve to seal the internal components from the outside for better cleaning and sterilization and to protect the internal components from moisture. The internal elements refer to the light source module 2, the image sensor 3, and the like.
Further, as a preferred embodiment, the light source assembly 2 includes: a light source 21, a circuit board 22 for arranging and managing the light source 21, and a cable 23 for supplying power to the light source 21.
Further, as a preferred embodiment, the first lens element 12 and the second lens element 11 are optical lenses or flat glass.
For example, in one possible embodiment, the first lens component 12 and the second lens component 11 are both optical lenses or flat glass.
For another example, in another possible embodiment, one of the first lens assembly 12 and the second lens assembly 11 is an optical lens, and the other of the first lens assembly 12 and the second lens assembly 11 is a flat glass.
Moreover, in other embodiments, the first lens assembly 12 and the second lens assembly 11 are preferably Al2O3Any kind of optical glass from the catalog of Schott, Ohara, Sumita, polymethyl methacrylate (PMMA) or Polycarbonate (PC).
It should be noted that the technical features in the present invention and those in the embodiments described below can be arbitrarily combined according to actual needs without contradiction.
Several embodiments are provided below as a detailed description of the present invention, and it should be particularly noted that the following embodiments are only preferred embodiments of the present invention, and not all embodiments.
The first embodiment:
referring to fig. 2, a first embodiment of the present invention includes: the lens comprises a first lens component 12 and a second lens component 11 surrounding the outer edge of the first lens component 12, wherein a non-light-transmitting layer is arranged between the first lens component 12 and the second lens component 11. Further comprising: the image sensor includes a light source module 2 and an image sensor 3, wherein the light source module 2 abuts against the second lens module 11 and a first distance d1 is formed between the image sensor 3 and the first lens module 12.
Further, as a preferred embodiment, the image sensor 3 is a photoelectric conversion electronic element.
Further, as a preferred embodiment, the image sensor 3 is a cmos sensor, a ccd element, or the like.
Further, as a preferred embodiment, the observation distance of the image sensor 3 is preferably 5 cm.
Further, as a preferred embodiment, the image sensor 3 is disposed coaxially with the first lens assembly 12.
Further, as a preferred embodiment, the first spacing d1 is 0 ≦ d1 ≦ 5 mm.
Further, as a preferred embodiment, the angle of view of the image sensor 3 is preferably 120 °.
Further, as a preferred embodiment, the side surface of the first lens component 12 is an inclined surface, and the outer diameter of the end surface of the first lens component 12 close to the image sensor 3 is smaller than the outer diameter of the end surface of the first lens component 12 far from the image sensor 3; the shape of the side of the second lens assembly 11 matches the shape of the side of the first lens assembly 12.
Further, as a preferred embodiment, the first lens assembly 12 has a side face inclined at an angle of 0-60 ° with respect to the axial direction of the first lens assembly 12.
Further, as a preferred embodiment, the side surface of the first lens assembly 12 is inclined at an angle of 60 ° with respect to the axial direction of the first lens assembly 12, so as to achieve the best viewing angle.
Second embodiment:
referring to fig. 3, a second embodiment of the present invention includes: the lens comprises a first lens component 12 and a second lens component 11 surrounding the outer edge of the first lens component 12, wherein a non-light-transmitting layer is arranged between the first lens component 12 and the second lens component 11. Further comprising: the image sensor 3 is disposed against the first lens component 12, and a second distance d2 is formed between the light source component 2 and the second lens component 11.
Further, as a preferred embodiment, the light source assembly 2 includes: a light source 21, a circuit board 22 for arranging and managing the light source 21, and a cable 23 for supplying power to the light source 21.
Further, as a preferred embodiment, the light source 21 is an LED lamp.
Further, as a preferred embodiment, the method further comprises: the housing 4 includes an outer shell 41 and an inner shell 42, at least a portion of the inner shell 42 is detachably disposed inside the outer shell 41, the outer shell 41 is used for fixing the first lens assembly 12 and the second lens assembly 11, and the inner shell 42 is used for fixing the light source assembly 2 and the image sensor 3.
Specifically, the light source 21 is located within the housing 41.
Further, as a preferred embodiment, the number of the light sources 21 is at least one or more.
Further, as a preferred embodiment, the number of the light sources 21 is plural, and the light sources 21 are uniformly distributed around the image sensor 3. Or the light sources 21 are in a circumferential array with respect to the image sensor 3.
Further, as a preferred embodiment, the distances between the light sources 21 and the second lens element 11 are all equal, so as to achieve the effect of uniform illumination and light intensity.
Further, as a preferred embodiment, the second distance d2 is 0 ≦ d2 ≦ 5 mm.
Further, as a preferred embodiment, other common lamps or illumination sources, such as optical fibers, can be used as the light source 21.
The third embodiment:
in a third embodiment of the present invention, an opaque coating for blocking or absorbing light is disposed between the first lens component 12 and the second lens component 11. The opaque coating is opaque paint or spray paint with light-blocking effect.
Further, as a preferred embodiment, the opaque coating can be a black polymer waterproof coating, a nano composite ceramic coating, a black water-based glass paint, a glass flake coating or other materials with the same effect.
The fourth embodiment:
the fourth embodiment of the present invention includes: the housing 4 includes an outer shell 41 and an inner shell 42, at least a portion of the inner shell 42 is detachably disposed inside the outer shell 41, the outer shell 41 is used for fixing the first lens assembly 12 and the second lens assembly 11, and the inner shell 42 is used for fixing the light source assembly 2 and the image sensor 3.
Further, as a preferred embodiment, the diameter of the end of the inner shell 42 close to the first lens assembly 12 and the second lens assembly 11 is smaller than the diameter of the end of the outer shell 41 far from the first lens assembly 12 and the second lens assembly 11, so that the inner shell 42 and the outer shell 41 can be connected in a matching manner.
Further, as a preferred embodiment, the outer shell 41 and the inner shell 42 may be fixedly connected by glue or mechanical structure.
Further, as a preferred embodiment, the material of the housing 4 can be, but is not limited to, medical metal, medical plastic and other polymer materials.
Further, as a preferred embodiment, the housing 4 has sufficient supporting force and good heat dissipation effect
Fifth embodiment:
referring to fig. 4 to 6, a fifth embodiment of the present invention includes: the lens comprises a first lens assembly 12 and a second lens assembly 11 surrounding the outer edge of the first lens assembly 12, wherein a non-transparent layer is arranged between the first lens assembly 12 and the second lens assembly 11. Further comprising: the image sensor 3 is disposed on the first lens assembly 12 and a second distance d2 is formed between the light source assembly 2 and the second lens assembly 11, or the image sensor 3 is disposed on the first lens assembly 12 and the light source assembly 2 is disposed on the second lens assembly 11. Meanwhile, the side surface of the first lens assembly 12 is an inclined surface.
Referring to fig. 5, an outer diameter of an end surface of the first lens assembly 12 close to the image sensor 3 is larger than an outer diameter of an end surface of the first lens assembly 12 away from the image sensor 3; the shape of the side of the second lens assembly 11 matches the shape of the side of the first lens assembly 12.
Referring to fig. 6, an outer diameter of an end surface of the first lens assembly 12 close to the image sensor 3 is smaller than an outer diameter of an end surface of the first lens assembly 12 away from the image sensor 3; the shape of the side of the second lens assembly 11 matches the shape of the side of the first lens assembly 12.
Further, as a preferred embodiment, the FOV of the image sensor 3 is 100 °, and the side structure of the first lens assembly 12 shown in fig. 6 is adopted, wherein the side of the first lens assembly 12 is inclined at an angle of 50 ° relative to the axial direction of the first lens assembly 12, so as to achieve the best viewing angle.
Further, as a preferred embodiment, the thicknesses of the first lens component 12 and the second lens component 11 may be different sizes of fit.
Referring to fig. 4, in a preferred embodiment, the thickness of the first lens element 12 is smaller than that of the second lens element 11, so as to reduce the influence of the first lens element 12 on the signals of the outgoing light and the incoming light of the image sensor 3, and achieve better transmittance with the same lens material.
In another preferred embodiment, the thickness of the first lens component 12 is the same as that of the second lens component 11, so that the light source 21 and the second lens component 11 have a larger contact area, thereby reducing the heat conduction to the lens when the light source 21 generates heat and reducing the risk of higher operating temperature of the end portion.
In other preferred embodiments, the thickness of the first lens component 12 is greater than the thickness of the second lens component 11, in which case the lens structure is easy to assemble.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (15)
1. An endoscope lens structure for reducing optical signal interference, comprising:
the lens comprises a first lens assembly and a second lens assembly which is at least partially arranged at the outer edge of the first lens assembly, wherein a non-light-pervious layer is arranged between the first lens assembly and the second lens assembly;
a light source assembly and an image sensor, wherein,
the light source assembly is abutted against the second lens assembly, and a first distance d1 is formed between the image sensor and the first lens assembly,
Or the image sensor is abutted against the first lens component, and a second distance d2 is formed between the light source component and the second lens component,
Or the image sensor is abutted against the first lens component and the light source component is abutted against the second lens component.
2. The endoscope lens structure of claim 1, wherein the second lens element is a ring-shaped structure, the second lens element surrounds the first lens element, and the second lens element is disposed coaxially with the first lens element.
3. The endoscope lens structure for reducing optical signal interference as recited in claim 1, wherein the first lens assembly is disposed coaxially with the image sensor.
4. The endoscope lens assembly of claim 1 including a plurality of said light source modules spaced apart from said second lens module by equal distances.
5. The endoscope lens structure of claim 1, wherein the light opaque layer is disposed at a side of the first lens assembly and/or a side of the second lens assembly.
6. The endoscope lens structure for reducing optical signal interference according to claim 1, wherein the light-tight layer is made of one or more of a black polymer waterproof coating, a nano composite ceramic coating, a black water-based glass paint, and a glass flake coating.
7. The endoscope lens structure for reducing optical signal interference according to claim 1, wherein the side surface of the first lens component is a bevel, and an outer diameter of the end surface of the first lens component close to the image sensor is smaller than an outer diameter of the end surface of the first lens component far from the image sensor; the shape of the side face of the second lens assembly is matched with the shape of the side face of the first lens assembly.
8. The endoscope lens structure for reducing optical signal interference according to claim 1, wherein the side surface of the first lens component is a bevel, and an outer diameter of the end surface of the first lens component close to the image sensor is larger than an outer diameter of the end surface of the first lens component far from the image sensor; the shape of the side face of the second lens assembly is matched with the shape of the side face of the first lens assembly.
9. The endoscope lens structure for reducing optical signal interference as recited in claim 1, wherein the thickness of the first lens assembly is the same as the thickness of the second lens assembly.
10. The structure of an endoscope lens with reduced interference to optical signals of claim 1, characterized in that the thickness of said first lens component is different from the thickness of said second lens component.
11. The endoscope lens structure for reducing optical signal interference of claim 1 wherein the thickness of the first lens component is less than the thickness of the second lens component.
12. An endoscope lens construction to reduce optical signal interference according to claim 1 and wherein said first spacing d1 is: 0 ≦ d1 ≦ 5 mm.
13. An endoscope lens structure for reducing optical signal interference according to claim 1, characterized in that said second interval d2 is: 0 ≦ d1 ≦ 5 mm.
14. An endoscope lens construction to reduce optical signal interference according to claim 1 and also comprising: the light source comprises an outer shell and an inner shell, wherein at least one part of the inner shell is detachably arranged in the outer shell, the outer shell is used for fixing the first lens assembly and the second lens assembly, and the inner shell is used for fixing the light source assembly and the image sensor.
15. The endoscope lens structure with reduced optical signal interference of claim 14, wherein the first lens component and the second lens component are sealed and disposed between the second lens component and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210297260.4A CN114755816A (en) | 2022-03-24 | 2022-03-24 | Endoscope lens structure for reducing optical signal interference |
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| CN202210297260.4A CN114755816A (en) | 2022-03-24 | 2022-03-24 | Endoscope lens structure for reducing optical signal interference |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040064018A1 (en) * | 2002-03-22 | 2004-04-01 | Robert Dunki-Jacobs | Integrated visualization system |
| US6796939B1 (en) * | 1999-08-26 | 2004-09-28 | Olympus Corporation | Electronic endoscope |
| CN102333475A (en) * | 2010-01-28 | 2012-01-25 | 奥林巴斯医疗株式会社 | Lighting unit, endoscope having the lighting unit, and lighting probe having the lighting unit and capable of being inserted through endoscope channel |
| CN102681163A (en) * | 2012-05-25 | 2012-09-19 | 南京春辉科技实业有限公司 | Endoscope with optical image isolation device |
| CN208447542U (en) * | 2018-01-09 | 2019-02-01 | 浙江成运医疗器械有限公司 | The leading end portion of fujinon electronic video endoscope |
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2022
- 2022-03-24 CN CN202210297260.4A patent/CN114755816A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6796939B1 (en) * | 1999-08-26 | 2004-09-28 | Olympus Corporation | Electronic endoscope |
| US20040064018A1 (en) * | 2002-03-22 | 2004-04-01 | Robert Dunki-Jacobs | Integrated visualization system |
| CN102333475A (en) * | 2010-01-28 | 2012-01-25 | 奥林巴斯医疗株式会社 | Lighting unit, endoscope having the lighting unit, and lighting probe having the lighting unit and capable of being inserted through endoscope channel |
| CN102681163A (en) * | 2012-05-25 | 2012-09-19 | 南京春辉科技实业有限公司 | Endoscope with optical image isolation device |
| CN208447542U (en) * | 2018-01-09 | 2019-02-01 | 浙江成运医疗器械有限公司 | The leading end portion of fujinon electronic video endoscope |
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