CN111045202A - Operating microscope - Google Patents
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- CN111045202A CN111045202A CN201911416954.XA CN201911416954A CN111045202A CN 111045202 A CN111045202 A CN 111045202A CN 201911416954 A CN201911416954 A CN 201911416954A CN 111045202 A CN111045202 A CN 111045202A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/0004—Microscopes specially adapted for specific applications
- G02B21/0012—Surgical microscopes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/02—Objectives
- G02B21/025—Objectives with variable magnification
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/06—Means for illuminating specimens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
- G02B21/20—Binocular arrangements
- G02B21/22—Stereoscopic arrangements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
- G02B21/365—Control or image processing arrangements for digital or video microscopes
- G02B21/367—Control or image processing arrangements for digital or video microscopes providing an output produced by processing a plurality of individual source images, e.g. image tiling, montage, composite images, depth sectioning, image comparison
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Abstract
The embodiment of the invention discloses a surgical microscope which comprises an illuminating system, an imaging system and an image processing system. The microscope has the advantages that multiple optical imaging subsystems are adopted for imaging simultaneously, different optical imaging systems correspond to different imaging functions, two large-depth-of-field and high-resolution left and right eye views are obtained through fusion calculation of multiple-optical-path multifunctional images, then 3D interweaving is carried out on the two images, the depth feeling of the finally obtained 3D image of the object is obviously reduced, the definition is effectively improved, the microscope has the advantages of being large in depth-of-field and high in resolution, meanwhile, the microscope also has good use comfort, and application requirements of doctors can be well met.
Description
Technical Field
The embodiment of the invention relates to the technical field of operation microscopes, in particular to an operation microscope.
Background
An operation microscope has been widely used in various surgical operations such as ophthalmology, otorhinolaryngology, neurosurgery, dentistry, and the like as a conventional medical device. The doctor watches the tiny details of the wound of the patient by means of the operation microscope, and the capability of the microscope for distinguishing the details and the operation comfort have great influence on the operation success rate of the doctor. In order to reduce the influence, the resolution and the use comfort of the operation microscope must be improved. In contrast, the surgical microscope engineer has conducted long-term and effective exploration, for example, in the aspect of microscope use comfort, a traditional visual system is replaced with a 3D camera, a doctor can directly watch a screen to conduct surgery without a main knife mirror and a hand-assistant mirror; in terms of increasing the depth of field, by reducing the aperture, adding a CFF galvanometer in the optical path, and the like. However, most of the above schemes achieve the purpose of improving the required index by sacrificing a part of the index of the operating microscope, and it is difficult to simultaneously consider the resolution, the depth of field and the comfort. For example, although a 3D camera replaces a visual system, long-term observation brings a strong sense of discomfort to people; while reducing the aperture can increase the depth of field, it sacrifices both field of view and resolution; the depth of field can be increased by adding the CFF galvanometer in the light path, but the CFF galvanometer has very high requirements on an optical system and a control structure of the galvanometer.
Disclosure of Invention
Therefore, the embodiment of the invention provides an operation microscope to solve the problem that the existing operation microscope cannot have high resolution, large depth of field and comfort in use.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a surgical microscope comprising an illumination system, an imaging system, and an image processing system;
the illumination system is used for providing a uniform illumination field of view meeting the imaging requirement for an object under the imaging objective lens;
the imaging system is used for imaging an object under the imaging objective lens by adopting four groups of two-optical-path imaging systems and obtaining eight images with the same magnification, wherein the four groups of two-optical-path imaging systems are respectively a main imaging system, a resolution enhancement system, a long-range depth enhancement system and a short-range depth enhancement system, and each group of two-optical-path imaging systems obtains a left image and a right image through a left imaging optical path and a right imaging optical path;
the image processing system is used for dividing the eight obtained images into a left group and a right group according to a left imaging light path and a right imaging light path, respectively carrying out image fusion calculation to obtain two large-depth-of-field high-resolution left eye views and two large-depth-of-field high-resolution right eye views, and carrying out 3D interweaving on the obtained left eye views and right eye views to output a three-dimensional image of the object.
Further, lighting system is including the light source, condensing lens, light filter, diaphragm, projection objective and the speculum that set gradually, the light source is located the focal plane of condensing lens, the light beam that the light source sent is parallel light output behind the condensing lens and reachs the diaphragm behind the light filter, the diaphragm is located aperture diaphragm department of condensing lens and projection objective's preceding focal plane, the light beam of diaphragm department is through projection objective collimation, again through the speculum 45 degrees, at last through the focus of formation of image objective on the object plane.
Further, object plane light warp become the parallel light output behind the formation of image objective emergence to divide into two way light beams through first spectroscope, the light beam of the same kind that first spectroscope divide into once more divide into two the tunnel back and image through main imaging system and resolution ratio enhancement system respectively through the second spectroscope, another light beam that first spectroscope divide into once more divide into two the tunnel back and image through long-range depth of field enhancement system and near depth of field enhancement system respectively through the third spectroscope.
Furthermore, the main imaging subsystem comprises a left main imaging subsystem and a right main imaging subsystem, the main imaging subsystem comprises a continuous zoom compensation system, a first imaging lens and a detector which are sequentially arranged, the continuous zoom compensation system expands or contracts light beams split by the second beam splitter, and the light beams are converged into the detector after passing through the first imaging lens.
Furthermore, the resolution enhancement system comprises a left resolution enhancement subsystem and a right resolution enhancement subsystem, the resolution enhancement subsystem comprises a continuous zoom compensation system, a second imaging lens and a detector which are sequentially arranged, the continuous zoom compensation system expands or contracts light beams split by the second beam splitter, and finally the light beams are converged into the detector after passing through the second imaging lens.
Furthermore, the far-field depth enhancement system comprises a left far-field depth enhancement subsystem and a right far-field depth enhancement subsystem, wherein the far-field depth enhancement subsystem comprises a first compensation lens, a continuous zoom compensation system, a third imaging lens and a detector which are sequentially arranged, a light beam divided by the first compensation lens to the third beam splitter is compensated and then becomes parallel light to be output, the parallel light beam is expanded or contracted by the continuous zoom compensation system, and finally the parallel light beam is converged into the detector after passing through the third imaging lens.
Furthermore, the near depth of field enhancement system includes two way near depth of field enhancement subsystems of left and right, near depth of field enhancement subsystem is including the second compensating mirror, continuous zoom compensating system, fourth imaging lens and the detector that set gradually, becomes parallel light output after the light beam that the second compensating mirror divides into to the third beam splitter compensates, passes through continuous zoom compensating system and expands beam or contracts the beam, finally assembles to the detector behind the fourth imaging lens.
Furthermore, the continuous zoom lens compensation system comprises a first fixed lens group, a zoom lens group, a compensation lens group and a second fixed lens group which are sequentially arranged along the optical axis.
Furthermore, the main imaging system adopts double imaging optical paths with relatively small center distance, the resolution enhancement system adopts double imaging optical paths with relatively large center distance, and the long-range depth enhancement system and the short-range depth enhancement system both adopt double imaging optical paths with the same center distance as the resolution enhancement system.
Further, the image processing system is specifically configured to divide the obtained eight images into a left group and a right group according to a left imaging optical path and a right imaging optical path, then respectively take the image obtained by the main imaging system as an image reference, perform image fusion calculation on the other three left-path or right-path images and the left-path or right-path image of the main imaging system, obtain two left-eye and right-eye views with high resolution and large depth of field, perform 3D interleaving on the obtained left-eye and right-eye views, and output a three-dimensional image of the object through a 3D display screen, where the 3D display screen includes a polarized type, a naked-eye 3D type, or a shutter type 3D display screen.
The embodiment of the invention has the following advantages:
the surgical microscope provided by the embodiment of the invention comprises an illumination system, an imaging system and an image processing system. The microscope has the advantages that multiple optical imaging subsystems are adopted for imaging simultaneously, different optical imaging systems correspond to different imaging functions, two large-depth-of-field and high-resolution left and right eye views are obtained through fusion calculation of multiple-optical-path multifunctional images, then 3D interweaving is carried out on the two images, the depth feeling of the finally obtained 3D image of the object is obviously reduced, the definition is effectively improved, the microscope has the advantages of being large in depth-of-field and high in resolution, meanwhile, the microscope also has good use comfort, and application requirements of doctors can be well met.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an operating microscope provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an imaging system of a surgical microscope provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of an image processing system of a surgical microscope according to embodiment 1 of the present invention.
In the figure: the illumination system 100, the imaging system 200, the image processing system 300, the light source 110, the condenser 120, the filter 130, the diaphragm 140, the projection objective 150, the reflector 160, the main imaging system 210, the resolution enhancement system 220, the far-field depth enhancement system 230, the near-field depth enhancement system 240, the first beam splitter 250, the second beam splitter 260, the third beam splitter 270, the main imaging subsystem 211, the resolution enhancer system 221, the far-field depth enhancement subsystem 231, the near-field depth enhancement subsystem 241, the main imaging system object plane 212, the far-field depth enhancement system object plane 232, the near-field depth enhancement system object plane 242, the first imaging lens 2111, the second imaging lens 2211, the first compensation lens 2311, the third imaging lens 2312, the second compensation lens 2411, the fourth imaging lens 2412, the continuous variable-magnification compensation system 600, the first fixed lens group 610, the variable-magnification lens group 620, the compensation lens group 630, the second fixed lens group 640, the projection objective 150, the reflector 160, the main imaging system, A probe 700.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
Example 1
The present embodiment proposes a surgical microscope, as shown in fig. 1, which includes an illumination system 100, an imaging system 200, and an image processing system 300.
The illumination system 100 is used to provide a uniform illumination field of view to the object under the imaging objective 400 that satisfies the imaging requirements.
Specifically, the illumination system 100 includes a light source 110, a condenser 120, an optical filter 130, a diaphragm 140, a projection objective 150, and a reflector 160, which are sequentially disposed, the light source 110 is located on a focal plane of the condenser 120, a light beam emitted by the light source 110 passes through the condenser 120, is parallel light, is output, and passes through the optical filter 130 and reaches the diaphragm 140, the diaphragm 140 is located at an aperture diaphragm 140 of the condenser 120 and on a front focal plane of the projection objective 150, the illuminance on the surface of the diaphragm 140 is uniform, the size of the diaphragm 140 is adjusted to change the illumination field diameter on the object plane, the illumination intensity is controlled by the power of the light source 110, the light beam at the diaphragm 140 is collimated by the projection objective 150, is then turned by 45 degrees by the reflector 160, and is finally focused on the object plane by the imaging objective 400.
In this embodiment, the light source 110 may be an LED, a halogen lamp, a mercury lamp, or a xenon lamp, and output illumination light by condensing light and then outputting by an optical fiber or by direct projection. The filter 130 includes an ultraviolet-proof filter 130, a white light filter 130, a macular protection sheet, and other filters 130, and the like.
The effective aperture area of the imaging objective 400 is divided into two parts, one for the imaging system 200 and the other for the illumination system 100, in proportions determined by the surgical microscope application, and in the preferred embodiment 1: 1.
the imaging system 200 is configured to image an object under the imaging objective 400 by using four sets of two-optical-path imaging systems, and obtain eight images with the same magnification, where the four sets of two-optical-path imaging systems are respectively the main imaging system 210, the resolution enhancement system 220, the far-view depth enhancement system 230, and the near-view depth enhancement system 240, and each set of two-optical-path imaging systems obtains two left and two right images through two left and right imaging optical paths.
In this embodiment, the main imaging system 210 employs two imaging optical paths with a relatively small center distance, the resolution enhancement system 220 employs two imaging optical paths with a relatively large center distance, and both the far-field depth enhancement system 230 and the near-field depth enhancement system 240 employ two imaging optical paths with the same center distance as that of the resolution enhancement system 220. Specifically, the main imaging system 210 employs a dual optical path with a relatively short center-to-center distance, which has low resolution but comfortable observation; the resolution enhancement system 220 adopts a dual light path with a relatively long center distance, the resolution is high, and the object plane of the resolution enhancement system and the object plane 212 of the main imaging system are positioned on the same horizontal plane; generally, the depth of field of the main imaging system 210, the resolution enhancement system 220 and the imaging objective lens 400 is fixed, and clear imaging cannot be performed if the depth of field exceeds the depth of field range, while the long-range depth enhancement system 230 is used for compensating and correcting the long-range depth of the main imaging system 210, the long-range depth enhancement system object plane 232 is below the main imaging system object plane 212, and the near depth of field coincides with the long-range depth of field of the main imaging system 210; the close-range depth enhancement system 240 is used for compensating and correcting the close-range depth of the main imaging system 210, the object plane 242 of the close-range depth enhancement system is located above the object plane 212 of the main imaging system, and the far field depth coincides with the close field depth of the main imaging system 210; the distance between the centers of the far depth enhancement system 230 and the near depth enhancement system 240 is the same as the distance between the centers of the resolution enhancement system 220; the imaging system 200, resolution enhancement system 220, far depth of field enhancement system 230, and near depth of field enhancement system 240 remain consistent during changes in system magnification. The imaging system 200 acquires a total of 8 images.
Specifically, the object plane light is emitted by the imaging objective 400 and then becomes parallel light to be output, and is divided into two light beams by the first beam splitter 250, one light beam divided by the first beam splitter 250 is divided into two light beams by the second beam splitter 260 and then is imaged by the main imaging system 210 and the resolution enhancement system 220, and the other light beam divided by the first beam splitter 250 is divided into two light beams by the third beam splitter 270 and then is imaged by the long-range depth enhancement system 230 and the short-range depth enhancement system 240. The three groups of spectroscopes divide the imaging light beam emitted by the imaging objective lens 400 into four parts with equal intensity, the energy is weakened after light splitting, the light beam property is unchanged, the splitting ratio of each spectroscope is 5:5, and the structure is not limited to a prism form.
As shown in fig. 2, the main imaging system 210 includes a left main imaging subsystem 211 and a right main imaging subsystem 211, the main imaging subsystem 211 includes a continuous zoom compensation system 600, a first imaging lens 2111 and a detector 700, which are sequentially arranged, the light beam split by the first beam splitter 250 is expanded or contracted by the continuous zoom compensation system 600, and finally is converged into the detector 700 after passing through the first imaging lens 2111.
The resolution enhancement system 220 includes a left resolution enhancement subsystem 221 and a right resolution enhancement subsystem 221, the resolution enhancement subsystem 221 includes a continuous zoom compensation system 600, a second imaging lens 2211 and a detector 700 which are sequentially arranged, the light beam split by the first beam splitter 250 is expanded or contracted by the continuous zoom compensation system 600, and finally is converged into the detector 700 after passing through the second imaging lens 2211.
The long-range depth enhancement system 230 includes a left long-range depth enhancement subsystem 231 and a right long-range depth enhancement subsystem 231, the long-range depth enhancement subsystem 231 includes a first compensation lens 2311, a continuous zoom compensation system 600, a third imaging lens 2312 and a detector 700 which are sequentially arranged, a light beam divided by the third beam splitter 270 by the first compensation lens 2311 is compensated and then becomes parallel light to be output, the light beam is expanded or contracted by the continuous zoom compensation system 600, and finally the parallel light beam is converged into the detector 700 by the third imaging lens 2312. Since the combined focal length of the imaging objective lens 400 and the first compensation lens 2311 is different from the focal length of the imaging objective lens 400, in order to obtain the same image plane magnification, in the long-range depth enhancement system 230, the ratio of the focal length of the third imaging lens 2312 to the combined focal length of the first compensation lens 2311 and the third imaging objective lens 2312 should be equal to the ratio of the focal length of the first imaging lens 2111 to the focal length of the imaging objective lens 400 in the main imaging system 210.
The focal plane of the combined optical system of the first compensating lens 2311 and the imaging objective lens 400 is located at a certain position below the focal plane of the imaging objective lens 400, the distance between the two focal planes does not exceed the sum of the far depth of field of the imaging objective lens 400 and the near depth of field of the combined optical system, the imaging objective lens 400 indicated by the far depth of field of the imaging objective lens 400, the continuous zoom compensating system 600 in the far depth of field enhancing system 230 and the far depth of field of the combined optical system are combined with the optical system composed of the imaging objective lens 400 indicated by the far depth of field of the imaging objective lens 400, the first compensating lens 2311 in the far depth of field enhancing system 230, the continuous zoom compensating system 600 and the third imaging lens 2312.
The near depth of field enhancement system 240 includes a left and a right near depth of field enhancement subsystems 241, the near depth of field enhancement subsystem includes a second compensation mirror 2411, a continuous zoom compensation system 600, a fourth imaging lens 2412 and a detector 700 which are sequentially arranged, a light beam divided by the third beam splitter 270 by the second compensation mirror 2411 is compensated and then becomes parallel light to be output, the light beam is expanded or contracted by the continuous zoom compensation system 600, and finally the light beam is converged to the detector 700 by the fourth imaging lens 2412. Also to obtain the same image plane magnification, in the near depth of field enhancement system 240, the ratio of the focal length of the fourth imaging lens 2412 to the combined focal length of the second compensation lens 2411 and the fourth imaging objective lens 2412 should be equal to the ratio of the focal length of the first imaging lens 2111 to the focal length of the imaging objective lens 400 in the main imaging system 210.
The focal plane of the combined optical system of the second compensation lens 2411 and the imaging objective lens 400 is located at a certain position above the focal plane of the imaging objective lens 400, the distance between the two focal planes does not exceed the sum of the near depth of field of the imaging objective lens 400 and the far depth of field of the combined optical system, wherein the imaging objective lens 400 referred to by the near depth of field of the imaging objective lens 400, the continuous zoom compensation system 600 in the near depth of field enhancement system 240 and the fourth imaging lens 2412 combined optical system referred to by the far depth of field of the combined optical system refer to the far depth of field of the combined optical system of the imaging objective lens 400, the second compensation lens 2411 in the near depth of field enhancement system 240, the continuous zoom compensation system 600 and the fourth imaging lens 2412.
The zoom lens compensation system 600 includes a first fixed lens group 610, a zoom lens group 620, a compensation lens group 630 and a second fixed lens group 640 sequentially arranged along an optical axis.
The image processing system 300 is configured to divide the eight acquired images into a left group and a right group according to a left imaging optical path and a right imaging optical path, perform image fusion calculation respectively to obtain two large-depth-of-field high-resolution left eye views and two large-depth-of-field high-resolution right eye views, and perform 3D interleaving on the obtained left eye views and right eye views to output a three-dimensional image of an object.
Specifically, the main imaging system 210, the resolution enhancement system 220, the far-view depth enhancement system 230, and the near-view depth enhancement system 240 each collect two images (divided into two images, i.e., a left image and a right image) from the corresponding optical path positions of the four systems, respectively extract the left and right optical path images from the four systems, respectively take the images of the main imaging system as image references, respectively perform image fusion calculation on the other three left-path images (as shown in fig. 3) or three right-path images and the left-path image or the right-path image of the main imaging system, that is, three left-path images obtained by the resolution enhancement system 220, the far-view depth enhancement system 230, and the near-view depth enhancement system 240 are fused into the left-path image of the main imaging system 210, and three right-path images obtained by the resolution enhancement system 220, the far-view depth enhancement system 230, and the near-view depth enhancement system 240 are fused into the right-path image of the main imaging system 210, so as to obtain two, Right eye view.
The image processing system 300 is further configured to perform 3D interleaving on the obtained left and right eye views, project the interleaved images to a 3D display screen, and output a three-dimensional image of the object through the 3D display screen. The 3D display screen comprises a polarized type, naked eye 3D type or shutter type 3D display screen and the like. The surgeon can perform the procedure directly by viewing the 3D display screen without having to look through a visualization system.
The surgical microscope provided by the embodiment of the invention comprises an illumination system, an imaging system and an image processing system. The microscope has the advantages that multiple optical imaging subsystems are adopted for imaging simultaneously, different optical imaging systems correspond to different imaging functions, two large-depth-of-field and high-resolution left and right eye views are obtained through fusion calculation of multiple-optical-path multifunctional images, then 3D interweaving is carried out on the two images, the depth feeling of the finally obtained 3D image of the object is obviously reduced, the definition is effectively improved, the microscope has the advantages of being large in depth-of-field and high in resolution, meanwhile, the microscope also has good use comfort, and application requirements of doctors can be well met.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A surgical microscope, characterized in that the surgical microscope comprises an illumination system, an imaging system and an image processing system;
the illumination system is used for providing a uniform illumination field of view meeting the imaging requirement for an object under the imaging objective lens;
the imaging system is used for imaging an object under the imaging objective lens by adopting four groups of two-optical-path imaging systems and obtaining eight images with the same magnification, wherein the four groups of two-optical-path imaging systems are respectively a main imaging system, a resolution enhancement system, a long-range depth enhancement system and a short-range depth enhancement system, and each group of two-optical-path imaging systems obtains a left image and a right image through a left imaging optical path and a right imaging optical path;
the image processing system is used for dividing the eight obtained images into a left group and a right group according to a left imaging light path and a right imaging light path, respectively carrying out image fusion calculation to obtain two large-depth-of-field high-resolution left eye views and two large-depth-of-field high-resolution right eye views, and carrying out 3D interweaving on the obtained left eye views and right eye views to output a three-dimensional image of the object.
2. The operating microscope of claim 1, wherein the illumination system comprises a light source, a condenser, an optical filter, a diaphragm, a projection objective and a reflector, which are sequentially arranged, the light source is located on a focal plane of the condenser, a light beam emitted by the light source is output as parallel light after passing through the condenser and reaches the diaphragm after passing through the optical filter, the diaphragm is located at an aperture diaphragm of the condenser and on a front focal plane of the projection objective, and the light beam at the diaphragm is collimated by the projection objective, then is bent by 45 degrees by the reflector and finally is focused on an object plane by the imaging objective.
3. The operating microscope of claim 1, wherein the object plane light is emitted by the imaging objective lens and then becomes parallel light to be output, and is divided into two beams by the first beam splitter, one beam divided by the first beam splitter is divided into two beams by the second beam splitter again and then is imaged by the main imaging system and the resolution enhancement system, respectively, and the other beam divided by the first beam splitter is divided into two beams by the third beam splitter again and then is imaged by the long-range depth enhancement system and the short-range depth enhancement system, respectively.
4. The operating microscope of claim 3, wherein the main imaging system comprises a left main imaging subsystem and a right main imaging subsystem, the main imaging subsystem comprises a continuous zoom compensation system, a first imaging lens and a detector which are sequentially arranged, and the light beam split by the second beam splitter is expanded or contracted by the continuous zoom compensation system and finally converged into the detector after passing through the first imaging lens.
5. The surgical microscope of claim 3, wherein the resolution enhancement system comprises a left resolution enhancement subsystem and a right resolution enhancement subsystem, and the resolution enhancement subsystem comprises a continuous zoom compensation system, a second imaging lens and a detector, which are sequentially arranged, and the light beam split by the second beam splitter is expanded or contracted by the continuous zoom compensation system and finally converged into the detector after passing through the second imaging lens.
6. The operating microscope of claim 3, wherein the far-field depth enhancement system comprises a left far-field depth enhancement subsystem and a right far-field depth enhancement subsystem, and the far-field depth enhancement subsystem comprises a first compensation lens, a continuous zoom compensation system, a third imaging lens and a detector which are sequentially arranged, a light beam divided by the first compensation lens and the third beam splitter is compensated by the first compensation lens and then becomes parallel light to be output, the light beam is expanded or contracted by the continuous zoom compensation system, and finally the light beam is converged into the detector by the third imaging lens.
7. The operating microscope of claim 3, wherein the near depth of field enhancement system comprises a left near depth of field enhancement subsystem and a right near depth of field enhancement subsystem, and the near depth of field enhancement subsystem comprises a second compensation lens, a continuous zoom compensation system, a fourth imaging lens and a detector which are sequentially arranged, wherein a light beam split by the third beam splitter by the second compensation lens is compensated and then becomes parallel light to be output, and then the light beam is expanded or contracted by the continuous zoom compensation system and finally converged into the detector by the fourth imaging lens.
8. An operating microscope according to claim 4, 5, 6 or 7 wherein the continuous variable power compensation system comprises a first fixed lens group, a variable power lens group, a compensation lens group and a second fixed lens group arranged in sequence along the optical axis.
9. The operating microscope of claim 1, wherein the main imaging system employs dual imaging optical paths with relatively small center-to-center distances, the resolution enhancement system employs dual imaging optical paths with relatively large center-to-center distances, and the long-range depth enhancement system and the short-range depth enhancement system each employ dual imaging optical paths with the same center-to-center distances as the resolution enhancement system.
10. The operating microscope according to claim 1, wherein the image processing system is specifically configured to divide the eight obtained images into a left group and a right group according to left and right imaging optical paths, perform image fusion calculation on the other three left-path or right-path images and the left-path or right-path image of the main imaging system respectively with reference to the image obtained by the main imaging system, obtain two left-eye and right-eye views with high resolution and large depth of field, perform 3D interleaving on the obtained left-eye and right-eye views, and output a three-dimensional image of the object through a 3D display screen, where the 3D display screen includes a polarization type, a naked-eye 3D type, or a shutter type 3D display screen.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679422A (en) * | 2020-06-09 | 2020-09-18 | 腾讯科技（深圳）有限公司 | Microscope, image processing system, and image processing method |
| CN111836017A (en) * | 2020-07-15 | 2020-10-27 | 广东欧谱曼迪科技有限公司 | Ultra-long depth-of-field ultra-wide dynamic endoscopic camera system and method |
| CN113133740A (en) * | 2021-05-21 | 2021-07-20 | 苏州依视禾医疗科技有限公司 | Large-depth-of-field eye imaging equipment |
| CN113589514A (en) * | 2021-08-10 | 2021-11-02 | 浙江未来技术研究院(嘉兴) | Micro external view mirror system |
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