CN113616142A - 4K paranasal sinuscope - Google Patents
4K paranasal sinuscope Download PDFInfo
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- CN113616142A CN113616142A CN202110908175.2A CN202110908175A CN113616142A CN 113616142 A CN113616142 A CN 113616142A CN 202110908175 A CN202110908175 A CN 202110908175A CN 113616142 A CN113616142 A CN 113616142A
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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
- A61B1/233—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 for the nose, i.e. nasoscopes, e.g. testing of patency of Eustachian tubes
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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
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00096—Optical elements
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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
- A61B1/05—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 characterised by the image sensor, e.g. camera, being in the distal end portion
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
Abstract
The invention discloses a 4K paranasal sinus mirror, an objective system comprises: the optical path sequentially passes through an object end protection plate, a first objective lens, an optical path channel, a second objective lens, a first pipeline, a third objective lens, a fourth objective lens, a second pipeline, a fifth objective lens and a sixth objective lens from an object space to an image space; the surfaces of the object end protection sheet facing the object space and the image space are both planes; the surface of the first objective lens facing the object side is a plane, and the surface facing the image side is a concave surface; the surface of the second object mirror surface facing the object space is a plane, and the surface facing the image space is a convex surface; the surfaces of the third objective lens facing the object space and the image space are convex surfaces; the surface of the fourth objective lens facing the object side is a concave surface, and the surface facing the image side is a convex surface; the surface of the fifth objective lens facing the object side is a concave surface, and the surface facing the image side is a plane; the surface of the sixth objective lens facing the object side is a plane, and the surface facing the image side is a convex surface. The invention discloses a 4K sinus speculum which is high in resolution, large in field angle, small in distortion and compact in structure of an objective system.
Description
Technical Field
The invention relates to the technical field of a sinus mirror, in particular to a 4K sinus mirror.
Background
The sinus nasoscope is a minimally invasive medical examination instrument, has good illumination, can make the operation become more meticulous through supporting surgical instruments to can reach the region that traditional operation can't reach, be a big mainstream of modern medical development, have a great deal of advantages such as the wound is light, patient's misery is little, postoperative resumes soon, can show simultaneously to shorten the postoperative time of being in hospital, reduces the consumption of medical resource.
Optical imaging is the most critical part of a paranasal sinus mirror device, the operation of a doctor completely depends on an image obtained by the paranasal sinus mirror, the definition of the image is directly related to the judgment of diseases in an operation, the identification of tissue structures and the accuracy and precision of the operation, and the optical imaging is closely related to the safety of the operation on the whole, so the main development trend of the paranasal sinus mirror technology is to continuously improve the optical imaging quality.
At present, optical imaging is developed from 1080p high definition to 4K ultrahigh definition, the resolution of a 4K paranasal sinus mirror image reaches 3840 multiplied by 2160 which is 4 times of a 1080p high definition image, clearer tissue details are provided, the positioning precision of a focus is improved, and great effect is achieved on the improvement of the operation quality and the safety.
The sinus mirror objective optical system is a key component of a sinus mirror, ensures high definition, and simultaneously realizes large field angle and small distortion imaging, which is a technical problem at present, wherein the large field angle has obvious effect on expanding the visual field of doctors, the small distortion further improves the accuracy of the size and the position of internal organs and tissues, but the resolution ratio of the sinus mirror objective optical system at present is lower, the field angle is smaller, and the distortion imaging is larger.
Therefore, how to provide a 4K sinoscope with high resolution, large field angle and small distortion imaging is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a 4K sinoscope, which has high resolution, large field angle, small distortion and compact objective system structure.
In order to achieve the purpose, the invention adopts the following technical scheme:
a 4K sinoscope comprising: an objective lens system, the objective lens system comprising: an optical path sequentially passes through an object end protection plate, a first objective lens, an optical path channel, a second objective lens, a first pipeline, a third objective lens, a fourth objective lens, a second pipeline, a fifth objective lens and a sixth objective lens from an object space to an image space, the optical path channel is arranged on the lens base and extends from the object space to the image space, meanwhile, two ports of the light path channel penetrate through two ends of the lens base in a one-to-one correspondence manner, one surfaces of the object end protection sheet and the first objective lens facing to the image space are both connected to the side wall of one end of the lens base facing to the object space, meanwhile, a space is arranged between the object end protection sheet and the first objective lens, one surface of the second objective lens facing to the object side is connected to the side wall of one end of the lens base facing to the image side, one surface of the second objective surface facing the image space is sequentially connected with the first pipeline, the third objective, the fourth objective, the second pipeline, the fifth objective and the sixth objective;
the surfaces of the object end protection sheet facing the object space and the image space are both planes; the surface of the first objective lens facing the object side is a plane, and the surface facing the image side is a concave surface; the surface of the second objective lens facing the object space is a plane, and the surface facing the image space is a convex surface; the surfaces of the third object mirror facing the object space and the image space are convex surfaces; the surface of the fourth objective lens facing the object side is a concave surface, and the surface facing the image side is a convex surface; the surface of the fifth objective lens facing the object side is a concave surface, and the surface facing the image side is a plane; the surface of the sixth objective lens facing the object side is a plane, and the surface facing the image side is a convex surface.
Preferably, the object end protection sheet is made of SAPPHIRE material, the curvature radius of an object plane of the object end protection sheet is infinite, the mirror distance is 0.40mm, and the mirror diameter is 2.0 mm; the curvature radius of the image plane of the object end protection plate is infinite, the mirror distance is 0.20mm, the mirror diameter is 1.8mm, and the radius of the lens is 1.4 mm.
Preferably, the first objective lens is made of H-ZLAF1 glass material, the curvature radius of an object-side convex surface of the first objective lens is infinite, the mirror surface distance is 0.40mm, and the mirror surface diameter is 1.66 mm; the curvature radius of the concave surface of the first objective lens in the image space is 0.8017mm, the mirror distance is 3.25mm, the diameter of the mirror surface is 1.12mm, and the radius of the lens is 1.4 mm.
Preferably, the second object is made of H-ZLAF1 glass material, the plane curvature radius of the second object lens is infinite, the lens surface distance is 1.59mm, and the lens surface diameter is 1.26 mm; the convex curvature radius of the second objective lens is-2.9605 mm, the mirror surface distance is 0.19mm, the mirror surface diameter is 1.76mm, and the lens radius is 1.4 mm.
Preferably, the third objective lens is made of H-ZK14 glass material, the curvature radius of the convex surface of the third objective lens in the object space is 5.297mm, the mirror surface distance is 1.81mm, and the mirror surface diameter is 1.82 mm; the curvature radius of the image space convex surface of the third objective lens is-2.128 mm; the lens radius of the third objective lens is 1.4 mm.
Preferably, the fourth objective lens is made of H-ZLAF3 glass material, the curvature radius of an object space concave surface of the fourth objective lens is-2.128 mm, the mirror surface distance is 0.66mm, and the mirror surface diameter is 1.74 mm; the curvature radius of the image side convex surface of the fourth objective lens is-5.058 mm, the mirror surface distance is 1.43mm, and the mirror surface diameter is 1.8 mm.
Preferably, the fifth objective lens is made of H-ZF13 glass material, the curvature radius of the concave surface of the object space of the fifth objective lens is-1.803 mm, the mirror surface distance is 1.86mm, and the mirror surface diameter is 1.58 mm; the curvature radius of the image space plane of the fifth objective lens is infinite; the lens radius of the fifth objective lens is 1.4 mm.
Preferably, the sixth objective lens is made of H-LAK7 glass material, the curvature radius of the object space plane of the sixth objective lens is infinite, the mirror distance is 1.2mm, and the mirror diameter is 2.26 mm; the curvature radius of the image side convex surface of the sixth objective lens is-2.679 mm, and the radius of the mirror surface of the sixth objective lens is 1.4 mm.
Preferably, the surface of the third objective lens facing the image side and the surface of the fourth objective lens facing the object side are all glued together, and the surface of the fifth objective lens facing the image side and the surface of the sixth objective lens facing the object side are all glued together.
Preferably, the mounting groove has been seted up to the microscope base towards the one end of object space, just logical unthreaded hole has been seted up to the tank bottom of mounting groove, the notch of mounting groove is towards the object space, the shutoff of object end protection piece is in on the notch of mounting groove, and fix on the notch terminal surface of mounting groove, first objective embedding is just fixed in the mounting groove, just it corresponds respectively to lead to the unthreaded hole first objective's concave surface with the port that the light path passageway is close to the object space to pass through the light path.
Through the technical scheme, compared with the prior art, the invention discloses and provides the 4K sinus speculum, and the following technical effects can be realized:
(1) the resolution is high, the field angle is large, and the distortion is small;
(2) the structure is compact, and the number of lenses is small;
(3) the material is environment-friendly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a block diagram of an objective lens system of a 4K paranasal sinus scope of the present invention;
FIG. 2 is a view showing a configuration of a relay optical system according to the present invention in connection with an objective lens system;
FIG. 3 is a diagram showing the structure of the relay optical system of the present invention connected to an imaging observation device;
FIG. 4 is an image of an optical transfer function in example 1 of the present invention;
fig. 5 is an image of a distortion curve in embodiment 1 of the present invention.
Wherein, 1-object end protective sheet; 2-a first objective lens; 3-an optical path channel; 4-a second objective lens; 5-a first conduit; 6-third objective lens; 7-a fourth objective lens; 8-a second conduit; 9-a fifth objective lens; 10-a sixth objective lens; 30-a lens base; 301-mounting grooves; 11-a protective tube; 12-a relay optical system; 13-imaging observation means; 14-transfer gluing unit; 15-a separation cavity; 16-an optical fiber; 17-spacer tube.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a 4K sinus speculum, which comprises: an objective lens system, the objective lens system comprising: an object end protection plate 1, a first objective lens 2, an optical path channel 3, a second objective lens 4, a first pipeline 5, a third objective lens 6, a fourth objective lens 7, a second pipeline 8, a fifth objective lens 9 and a sixth objective lens 10, wherein the optical path passes through the object end protection plate 1, the first objective lens 2, the optical path channel 3, the second objective lens 4, the third objective lens 6, the fourth objective lens 7, the second pipeline 8, the fifth objective lens 9 and the sixth objective lens 10 in sequence from the object side to the image side, the optical path channel 3 is arranged on a lens base 30 and extends from the object side to the image side, meanwhile, two ports of the optical path channel 3 correspondingly penetrate through two ends of the lens base 30 one by one, one surfaces of the object end protection sheet 1 and the first objective lens 2 facing to the image space are both connected on the side wall of one end of the lens base 30 facing to the object space, meanwhile, an interval is reserved between the object end protection plate 1 and the first objective lens 2, one surface of the second objective lens 4 facing the object side is connected to the side wall of one end of the lens base 30 facing the image side, and one surface of the second objective lens 4 facing the image side is sequentially connected with a first pipeline 5, a third objective lens 6, a fourth objective lens 7, a second pipeline 8, a fifth objective lens 9 and a sixth objective lens 10;
the surfaces of the object end protection sheet 1 facing the object space and the image space are both planes; the surface of the first objective lens 2 facing the object side is a plane, and the surface facing the image side is a concave surface; the surface of the second objective lens 4 facing the object space is a plane, and the surface facing the image space is a convex surface; the surfaces of the third objective lens 6 facing the object space and the image space are convex surfaces; the surface of the fourth objective lens 7 facing the object side is a concave surface, and the surface facing the image side is a convex surface; the surface of the fifth objective lens 9 facing the object side is a concave surface, and the surface facing the image side is a plane; the surface of the sixth objective lens 10 facing the object side is a plane, and the surface facing the image side is a convex surface.
The object end protection sheet 1, the first objective lens 2, the optical path channel 3, the second objective lens 4, the first pipeline 5, the third objective lens 6, the fourth objective lens 7, the second pipeline 8, the fifth objective lens 9, the sixth objective lens 10 and the lens holder 30 have the position relation and the connection relation, and are in the shape in a one-to-one correspondence mode, so that the structure is compact, the number of objective lenses is small, achromatic aberration, short focal length and long-distance imaging can be achieved, and after the optical path passes through the optical path protection sheet, the resolution ratio is high, the field angle is large, and distortion is small.
In order to further optimize the technical scheme, the object end protection sheet 1 is made of SAPPHIRE material, the curvature radius of an object plane of the object end protection sheet 1 is infinite, the mirror distance is 0.40mm, and the mirror diameter is 2.0 mm; the curvature radius of the image plane of the object end protection sheet 1 is infinite, the mirror distance is 0.20mm, the mirror diameter is 1.8mm, and the lens radius is 1.4 mm.
By adopting the technical scheme, the invention has the beneficial effects that: the material is environment-friendly, and can play a role in preventing abrasion, further improve the resolution of the imaging of the invention, and further increase the angle of view and further reduce the distortion.
In order to further optimize the technical scheme, the first objective lens 2 is made of H-ZLAF1 glass material, the curvature radius of an object convex surface of the first objective lens 2 is infinite, the mirror surface distance is 0.40mm, and the mirror surface diameter is 1.66 mm; the radius of curvature of the concave surface of the first objective lens 2 on the image side is 0.8017mm, the mirror distance is 3.25mm, the mirror diameter is 1.12mm, and the lens radius is 1.4 mm.
By adopting the technical scheme, the invention has the beneficial effects that: the material is environment-friendly, and simultaneously, the resolution of the imaging of the invention is further improved, the field angle is further increased, and the distortion is further reduced.
In order to further optimize the technical scheme, the second objective is made of H-ZLAF1 glass material, the plane curvature radius of the second objective 4 is infinite, the mirror surface distance is 1.59mm, and the mirror surface diameter is 1.26 mm; the convex curvature radius of the second objective lens 4 is-2.9605 mm, the mirror surface distance is 0.19mm, the mirror surface diameter is 1.76mm, and the lens radius is 1.4 mm.
By adopting the technical scheme, the invention has the beneficial effects that: the material is environment-friendly, and simultaneously, the resolution of the imaging of the invention is further improved, the field angle is further increased, and the distortion is further reduced.
In order to further optimize the technical scheme, the third objective lens 6 is made of H-ZK14 glass material, the curvature radius of the convex surface of the object space of the third objective lens 6 is 5.297mm, the lens surface distance is 1.81mm, and the diameter of the lens surface is 1.82 mm; the curvature radius of the image space convex surface of the third objective lens 6 is-2.128 mm; the lens radius of the third objective lens 6 is 1.4 mm.
By adopting the technical scheme, the invention has the beneficial effects that: the material is environment-friendly, and simultaneously, the resolution of the imaging of the invention is further improved, the field angle is further increased, and the distortion is further reduced.
In order to further optimize the technical scheme, the fourth objective lens 7 is made of H-ZLAF3 glass material, the curvature radius of an object space concave surface of the fourth objective lens 7 is-2.128 mm, the mirror surface distance is 0.66mm, and the mirror surface diameter is 1.74 mm; the curvature radius of the image side convex surface of the fourth objective lens 7 is-5.058 mm, the mirror surface distance is 1.43mm, and the mirror surface diameter is 1.8 mm.
By adopting the technical scheme, the invention has the beneficial effects that: the material is environment-friendly, and simultaneously, the resolution of the imaging of the invention is further improved, the field angle is further increased, and the distortion is further reduced.
In order to further optimize the technical scheme, the fifth objective lens 9 is made of H-ZF13 glass material, the curvature radius of the concave surface of the object space of the fifth objective lens 9 is-1.803 mm, the mirror surface distance is 1.86mm, and the mirror surface diameter is 1.58 mm; the curvature radius of the image plane of the fifth objective lens 9 is infinite; the fifth objective lens 9 has a lens radius of 1.4 mm.
By adopting the technical scheme, the invention has the beneficial effects that: the material is environment-friendly, and simultaneously, the resolution of the imaging of the invention is further improved, the field angle is further increased, and the distortion is further reduced.
In order to further optimize the technical scheme, the sixth objective lens 10 is made of H-LAK7 glass material, the curvature radius of the object plane of the sixth objective lens 10 is infinite, the mirror distance is 1.2mm, and the mirror diameter is 2.26 mm; the curvature radius of the image-side convex surface of the sixth objective lens 10 is-2.679 mm, and the mirror surface radius is 1.4 mm.
By adopting the technical scheme, the invention has the beneficial effects that: the material is environment-friendly, and simultaneously, the resolution of the imaging of the invention is further improved, the field angle is further increased, and the distortion is further reduced.
In order to further optimize the above solution, the surface of the third objective lens 6 facing the image side is glued to the surface of the fourth objective lens 7 facing the object side, while the surface of the fifth objective lens 9 facing the image side is glued to the surface of the sixth objective lens 10 facing the object side.
By adopting the technical scheme, the invention has the beneficial effects that: the optical path through the present invention is further optimized, thereby further improving the resolution of the inventive imaging, as well as further increasing the field angle and further reducing distortion.
In order to further optimize the above technical solution, the lens holder 30 has been seted up to mounting groove 301 towards the one end of object side, and the tank bottom of mounting groove 301 has been seted up and has been led to the unthreaded hole, the notch of mounting groove 301 faces the object side, the shutoff of object end protecting plate 1 is on the notch of mounting groove 301, and fix on the notch terminal surface of mounting groove 301, first objective 2 imbeds and fixes in mounting groove 301, and lead to the unthreaded hole and correspond the concave surface of first objective 2 and the port that light path channel 3 is close to the object side respectively, in order to pass through the light path.
By adopting the technical scheme, the invention has the beneficial effects that: the structure of the invention is more compact, thereby improving the flexibility of the invention, facilitating the operation without influencing the imaging quality, the angle of view and the distortion of the invention and playing a role of sealing.
In order to further optimize the above technical solution, the method further comprises: the protection tube 11, the object end protection sheet 1, the first objective lens 2, the lens holder 30, the second objective lens 4, the first pipeline 5, the third objective lens 6, the fourth objective lens 7, the second pipeline 8, the fifth objective lens 9 and the sixth objective lens 10 are all embedded and fixed in the protection tube 11.
By adopting the technical scheme, the invention has the beneficial effects that: the lenses of the invention are protected by the protective tube 11, and the connection between the lenses of the invention is more stable.
In order to further optimize the above technical solution, the method further comprises: the relay optical system 13 is embedded and fixed in the protective tube 11, one end of the relay optical system 12 is in butt joint with the convex surface of the sixth objective lens 10, and the other end is connected with the imaging observation device 13.
By adopting the technical scheme, the invention has the beneficial effects that: the relay optical system 12 transmits the real image formed by the object end protection sheet 1, the first objective lens 2, the optical path channel 3, the second objective lens 4, the first pipeline 5, the third objective lens 6, the fourth objective lens 7, the second pipeline 8, the fifth objective lens 9 and the sixth objective lens 10 to the imaging observation device 13, so that a person can observe the image formed by the present invention through the imaging observation device 13, and the structure of the imaging observation device 13 is the prior art, and is not described herein again.
In order to further optimize the above technical solution, the imaging observation device 13 is connected to a monitor through an optical interface.
By adopting the technical scheme, the invention has the beneficial effects that: the image can be displayed on a monitor, so that the parameter information of the imaging can be conveniently acquired.
In order to further optimize the above technical solution, the relay optical system 12 includes: the imaging and gluing unit comprises a plurality of imaging and gluing units 14 and a plurality of spacing pipes 17, the imaging and gluing units 14 and the spacing pipes 17 are on the same straight line, the imaging and gluing units 14 and the spacing pipes 17 are alternately arranged at intervals, a spacing cavity 15 is formed between every two adjacent imaging and gluing units 14 and the spacing pipes 17, and one of the spacing pipes 17 is close to the sixth objective lens 10.
Each relay image gluing unit 14 is formed by gluing a plurality of relay images.
By adopting the technical scheme, the invention has the beneficial effects that: the imaging can be magnified.
In order to further optimize the above technical solution, the method further comprises: and a plurality of optical fibers 16, wherein the optical fibers 16 are fixed on the inner wall of the protection tube 11, and the protection tube 11 at the extending part is connected with the light source.
By adopting the technical scheme, the invention has the beneficial effects that: the front end of the objective lens protection sheet 1 can be illuminated by the optical fiber 16, thereby facilitating observation of the image.
In order to further optimize the above technical solution, the object end protection sheet 1 may not be attached to the lens holder 30, but may be attached to the inner wall of the protection tube 11, according to the overall design requirements of the sinoscope.
Example (b):
the objective system of the 4K paranasal sinus mirror is formed by an object end protection plate 1, a first objective lens 2, an optical path channel 3, a second objective lens 4, a first pipeline 5, a third objective lens 6, a fourth objective lens 7, a second pipeline 8, a fifth objective lens 9 and a sixth objective lens 10, wherein an optical path sequentially passes through the object end protection plate 1, the first objective lens 2, the optical path channel 3, the second objective lens 4, the first pipeline 5, the third objective lens 6, the fourth objective lens 7, the second pipeline 8, the fifth objective lens 9 and the sixth objective lens 10 from an object side to an image side;
the surfaces of the object end protection sheet 1 facing the object space and the image space are both planes; the surface of the first objective lens 2 facing the object side is a plane, and the surface facing the image side is a concave surface; the surface of the second objective lens 4 facing the object space is a plane, and the surface facing the image space is a convex surface; the surfaces of the third objective lens 6 facing the object space and the image space are convex surfaces; the surface of the fourth objective lens 7 facing the object side is a concave surface, and the surface facing the image side is a convex surface; the surface of the fifth objective lens 9 facing the object side is a concave surface, and the surface facing the image side is a plane; the surface of the sixth objective lens 10 facing the object side is a plane, and the surface facing the image side is a convex surface;
meanwhile, the object end protection sheet 1 is made of SAPPHIRE material, the curvature radius of an object plane of the object end protection sheet 1 is infinite, the mirror distance is 0.40mm, and the mirror diameter is 2.0 mm; the curvature radius of an image plane of the object end protection sheet 1 is infinite, the mirror distance is 0.20mm, the mirror diameter is 1.8mm, and the lens radius is 1.4 mm;
the first objective lens 2 is made of H-ZLAF1 glass material, the curvature radius of an object space convex surface of the first objective lens 2 is infinite, the mirror surface distance is 0.40mm, and the mirror surface diameter is 1.66 mm; the curvature radius of the image side concave surface of the first objective lens 2 is 0.8017mm, the mirror surface distance is 3.25mm, the mirror surface diameter is 1.12mm, and the lens radius is 1.4 mm;
the second object is made of H-ZLAF1 glass material, the plane curvature radius of the second object lens 4 is infinite, the lens surface distance is 1.59mm, and the lens surface diameter is 1.26 mm; the convex curvature radius of the second objective lens 4 is-2.9605 mm, the mirror surface distance is 0.19mm, the mirror surface diameter is 1.76mm, and the lens radius is 1.4 mm;
the third objective lens 6 is made of H-ZK14 glass material, the curvature radius of the convex surface of the object space of the third objective lens 6 is 5.297mm, the distance of the lens surface is 1.81mm, and the diameter of the lens surface is 1.82 mm; the curvature radius of the image space convex surface of the third objective lens 6 is-2.128 mm; the radius of the lens of the third objective lens 6 is 1.4 mm;
the fourth objective lens 7 is made of H-ZLAF3 glass material, the curvature radius of an object space concave surface of the fourth objective lens 7 is-2.128 mm, the mirror surface distance is 0.66mm, and the mirror surface diameter is 1.74 mm; the curvature radius of the image space convex surface of the fourth objective lens 7 is-5.058 mm, the mirror surface distance is 1.43mm, and the mirror surface diameter is 1.8 mm;
the fifth objective lens 9 is made of H-ZF13 glass material, the curvature radius of the concave surface of the object space of the fifth objective lens 9 is-1.803 mm, the distance of the mirror surface is 1.86mm, and the diameter of the mirror surface is 1.58 mm; the curvature radius of the image plane of the fifth objective lens 9 is infinite; the lens radius of the fifth objective lens 9 is 1.4 mm;
the sixth objective lens 10 is made of H-LAK7 glass material, the curvature radius of the object plane of the sixth objective lens 10 is infinite, the mirror distance is 1.2mm, and the mirror diameter is 2.26 mm; the curvature radius of the image side convex surface of the sixth objective lens 10 is-2.679 mm, and the mirror surface radius is 1.4 mm;
the surface of the third objective lens 6 facing the image side is glued to the surface of the fourth objective lens 7 facing the object side, while the surface of the fifth objective lens 9 facing the image side is glued to the surface of the sixth objective lens 10 facing the object side.
The object side protective sheet 1 of the present invention is 20mm away from the object to be observed, the sixth objective lens 10 of the above objective lens system is connected to the relay optical system 12 and the imaging observation device 13, so that the image formed by the present invention can be seen through the observation device 13, and the monitor is connected to the observation device 13 through the optical interface (1/2 "CMOS or CCD image sensor, model OS08a10 of the optical interface of this embodiment), the image plane size is 7.7mm × 4.4mm, the pixel size is 2 μm, and the spatial cut-off frequency is 250lp/mm), the sinus mirror objective lens system of the present invention has a modulation degree which is not much different from the diffraction limit (diffranilimit) in the 0.5 field range, the spatial frequency value in the 0.5 field range reaches about 185lp/mm when the modulation degree is 0.26, the pixel resolution in the CMOS photosensitive surface reaches 2849 × 1628, the resolution is 3840 × 2160K, and the 1080p resolution is better than 1920 × 1080, and the imaging field angle reaches 90 degrees, and the distortion rate is about 18 percent.
Therefore, the imaging method has the advantages of high resolution, large field of view and small distortion.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A 4K sinoscope, comprising: an objective lens system, the objective lens system comprising: an object end protection sheet (1), a first objective lens (2), an optical path channel (3), a second objective lens (4), a first pipeline (5), a third objective lens (6), a fourth objective lens (7), a second pipeline (8), a fifth objective lens (9) and a sixth objective lens (10) which sequentially pass through an optical path from an object side to an image side, wherein the optical path channel (3) is arranged on a lens base (30) and extends from the object side to the image side, two ports of the optical path channel (3) penetrate through two ends of the lens base (30) in a one-to-one correspondence manner, one surfaces of the object end protection sheet (1) and the first objective lens (2) facing the image side are both connected onto a side wall of the lens base (30) facing one end of the object side, an interval is arranged between the object end protection sheet (1) and the first objective lens (2), one surface of the second objective lens (4) facing the object side is connected onto a side wall of the lens base (30) facing one end of the image side, one surface of the second objective (4) facing the image space is sequentially connected with the first pipeline (5), the third objective (6), the fourth objective (7), the second pipeline (8), the fifth objective (9) and the sixth objective (10);
the object end protection sheet (1) faces to the object space and the image space are both planes; the surface of the first objective lens (2) facing the object space is a plane, and the surface facing the image space is a concave surface; the surface of the second objective lens (4) facing the object space is a plane, and the surface facing the image space is a convex surface; the surfaces of the third objective lens (6) facing the object space and the image space are convex surfaces; the surface of the fourth objective lens (7) facing the object space is a concave surface, and the surface facing the image space is a convex surface; the surface of the fifth objective lens (9) facing the object space is a concave surface, and the surface facing the image space is a plane; the surface of the sixth objective lens (10) facing the object side is a plane, and the surface facing the image side is a convex surface.
2. The 4K rhinosinoscope according to claim 1, wherein the object end protection sheet (1) is made of SAPPHIRE material, and the radius of curvature of the object plane of the object end protection sheet (1) is infinite, the mirror surface distance is 0.40mm, and the mirror surface diameter is 2.0 mm; the curvature radius of the image plane of the object end protection plate (1) is infinite, the mirror distance is 0.20mm, the mirror diameter is 1.8mm, and the radius of the lens is 1.4 mm.
3. The 4K rhinosinoscope according to claim 1, wherein the first objective lens (2) is made of H-ZLAF1 glass material, and the radius of curvature of the object side convex surface of the first objective lens (2) is infinite, the mirror surface distance is 0.40mm, and the mirror surface diameter is 1.66 mm; the curvature radius of the image side concave surface of the first objective lens (2) is 0.8017mm, the mirror surface distance is 3.25mm, the mirror surface diameter is 1.12mm, and the lens radius is 1.4 mm.
4. The 4K sinus mirror according to claim 1, wherein the second object is made of H-ZLAF1 glass material, and the plane curvature radius of the second object (4) is infinite, the mirror surface distance is 1.59mm, and the mirror surface diameter is 1.26 mm; the convex curvature radius of the second objective lens (4) is-2.9605 mm, the mirror surface distance is 0.19mm, the mirror surface diameter is 1.76mm, and the lens radius is 1.4 mm.
5. The 4K rhinosinus mirror according to claim 1, wherein the third objective lens (6) is made of H-ZK14 glass material, and the third objective lens (6) has a convex curvature radius of 5.297mm, a lens distance of 1.81mm and a lens diameter of 1.82 mm; the curvature radius of the image side convex surface of the third objective lens (6) is-2.128 mm; the radius of the lens of the third objective lens (6) is 1.4 mm.
6. The 4K rhinosinoscope according to claim 1, wherein the fourth objective lens (7) is made of H-ZLAF3 glass material, and the object space concave curvature radius of the fourth objective lens (7) is-2.128 mm, the mirror surface distance is 0.66mm, and the mirror surface diameter is 1.74 mm; the curvature radius of an image space convex surface of the fourth objective lens (7) is-5.058 mm, the mirror surface distance is 1.43mm, and the mirror surface diameter is 1.8 mm.
7. The 4K rhinosinoscope according to claim 1, wherein the fifth objective lens (9) is made of H-ZF13 glass material, and the object space concave curvature radius of the fifth objective lens (9) is-1.803 mm, the mirror surface distance is 1.86mm, and the mirror surface diameter is 1.58 mm; the curvature radius of the image space plane of the fifth objective lens (9) is infinite; the lens radius of the fifth objective lens (9) is 1.4 mm.
8. The 4K rhinosinoscope according to claim 1, wherein the sixth objective lens (10) is made of H-LAK7 glass material, and the sixth objective lens (10) has infinite radius of curvature of object plane, mirror distance of 1.2mm and mirror diameter of 2.26 mm; the curvature radius of the image side convex surface of the sixth objective lens (10) is-2.679 mm, and the mirror surface radius is 1.4 mm.
9. 4K rhinoscope according to claim 1, characterized in that the image facing side of the third objective (6) is fully cemented with the object facing side of the fourth objective (7), while the image facing side of the fifth objective (9) is fully cemented with the object facing side of the sixth objective (10).
10. The 4K rhinoscope of claim 1, wherein the lens holder (30) has an installation groove (301) at one end facing the object, and the bottom of the installation groove (301) has a light passing hole, the opening of the installation groove (301) faces the object, the object end protection sheet (1) is sealed on the opening of the installation groove (301) and fixed on the opening end surface of the installation groove (301), the first objective (2) is embedded and fixed in the installation groove (301), and the light passing holes correspond to the concave surface of the first objective (2) and the end of the optical path channel (3) close to the object, respectively, so as to pass through the optical path.
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Cited By (1)
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| CN115480376A (en) * | 2022-09-22 | 2022-12-16 | 浙江天松医疗器械股份有限公司 | High-definition super-wide-angle arthroscope imaging system |
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