阅读说明：本技术 一种显微外视镜系统 (Micro external view mirror system ) 是由 廖家胜 邵航 唐洁 刘威 于 2021-08-10 设计创作，主要内容包括：本发明公开了一种显微外视镜系统,包括：成像系统、照明系统和穿戴式观察眼镜；成像系统包括大物镜以及位于大物镜上侧的至少三个成像光路,每个成像光路设置有同轴的连续变倍体透镜、管镜以及光学探测器,连续变倍体透镜位于管镜与大物镜之间,管镜位于连续变倍体透镜与光学探测器之间；照明系统用于为大物镜下侧照明；所述穿戴式观察眼镜用于获取两个成像光路的光学探测器采集的图像信息,并根据该图像信息进行显示,其中,穿戴式观察眼镜为AR眼镜或VR眼镜。达到的技术效果为：用增强/虚拟显示替代裸眼或者偏振式3D屏,有效解决了现有显微镜的视场遮挡及体积庞大等问题。(The invention discloses a microscopic external mirror system, comprising: an imaging system, an illumination system, and wearable viewing glasses; the imaging system comprises a large objective lens and at least three imaging light paths positioned on the upper side of the large objective lens, wherein each imaging light path is provided with a coaxial continuous zoom lens, a tube lens and an optical detector; the illumination system is used for illuminating the lower side of the large objective lens; the wearable observation glasses are used for acquiring image information acquired by the optical detectors of the two imaging light paths and displaying the image information according to the image information, wherein the wearable observation glasses are AR glasses or VR glasses. The technical effects achieved are as follows: the enhanced/virtual display is used for replacing a naked eye or polarized 3D screen, so that the problems of field shielding, large size and the like of the existing microscope are effectively solved.)

1. A microscopic exoscope system, comprising:

an imaging system, an illumination system, and wearable viewing glasses;

the imaging system comprises a large objective lens and at least three imaging light paths positioned on the upper side of the large objective lens, wherein each imaging light path is provided with a coaxial continuous zoom lens, a tube lens and an optical detector, the continuous zoom lens is positioned between the tube lens and the large objective lens, and the tube lens is positioned between the continuous zoom lens and the optical detector;

the illumination system is used for illuminating the lower side of the large objective lens;

the wearable observation glasses are used for acquiring image information acquired by the optical detectors of the two imaging light paths and displaying the image information according to the image information, wherein the wearable observation glasses are AR glasses or VR glasses.

2. The microscopy exoscope system according to claim 1, wherein said wearable viewing glasses are configured to determine two imaging light paths for acquiring image information by:

according to the visual angle of a doctor wearing the wearable observation glasses, two imaging light paths for acquiring image information are determined.

3. The microscope exterior mirror system according to claim 1, wherein the wearable observation glasses are used for acquiring image information collected by the optical detectors of the two imaging optical paths and displaying the image information according to the image information, and comprise:

image information collected by the optical detectors of the two imaging optical paths is compressed and then transmitted to the wearable observation glasses, and the wearable observation glasses determine the 3D scene information of the object space target under the large objective lens according to the image information and display the 3D scene information.

4. The microscopy scope system according to any one of claims 1 to 3, wherein the continuously variable magnification body comprises:

the lens group comprises a front fixed group lens, a variable-power group lens, a compensation group lens and a rear fixed group lens, wherein the large objective lens is arranged on the tube lens, and the front fixed group lens, the variable-power group lens, the compensation group lens and the rear fixed group lens are sequentially arranged at intervals.

5. The microscopy scope system according to any one of claims 1 to 3, wherein the illumination system comprises:

the optical fiber light source is connected with the illuminating lens, the illuminating lens is connected with the reflecting prism, light beams passing through the illuminating lens are turned to the large objective lens through the reflecting prism, and light spots are formed on an object space target under the large objective lens.

6. The microscopy exoscope system according to claim 5,

and a light homogenizing plate is arranged between the optical fiber light source and the illuminating lens.

7. The microscopy exoscope system according to claim 5,

and an optical filter is arranged between the illumination lens and the reflecting prism.

8. The microscopy scope system according to any one of claims 1 to 3,

the imaging light paths are distributed along the optical axis of the large objective lens in a centrosymmetric manner.

9. The microscopy scope system according to any one of claims 1 to 3,

the number of the imaging light paths is greater than or equal to 3.

10. The microscopy exoscope system according to claim 1,

and the distance between the optical axes of two adjacent imaging light paths is greater than or equal to 20 mm.

Technical Field

The invention relates to the technical field of optical imaging, in particular to a microscopic external view mirror system.

Background

The microscopic external view mirror is derived from an operation microscope, partial optical principles and structures of the microscopic external view mirror are extremely similar, the operation microscope is observed by visual observation, the microscopic external view mirror is observed in front of a screen, the weight, the volume and the appearance of the microscopic external view mirror are different, the external view mirror is lighter and has a simpler support compared with the operation microscope. Surgical operations based on surgical microscopes require the surgeon to view the anatomy at various angles, visual observation requires the surgeon to have the neck and body bent for a long time, assistants are often in similar or worse constraints, which can cause discomfort and fatigue to the surgeon, potential risks to the quality of the operation, and the problem is well avoided when the endoscope is operated by viewing the screen. Since the market was released in 2008, the exterior mirror is widely favored by surgeons with its unique advantages, and representative products are orbeyee and caltosz of olympus3D。

Although some technical indexes of the external-view mirror exceed those of an operation microscope, the operation room which is originally narrow and small is crowded by the huge 3D display screen, and the operation room is inconvenient to carry.

Disclosure of Invention

Accordingly, the present invention is directed to a microscope endoscope system that solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

the invention provides a microscopic external mirror system, comprising:

an imaging system, an illumination system, and wearable viewing glasses;

the imaging system comprises a large objective lens and at least three imaging light paths positioned on the upper side of the large objective lens, wherein each imaging light path is provided with a coaxial continuous zoom lens, a tube lens and an optical detector, the continuous zoom lens is positioned between the tube lens and the large objective lens, and the tube lens is positioned between the continuous zoom lens and the optical detector;

the illumination system is used for illuminating the lower side of the large objective lens;

the wearable observation glasses are used for acquiring image information acquired by the optical detectors of the two imaging light paths and displaying the image information according to the image information, wherein the wearable observation glasses are AR glasses or VR glasses.

Further, the wearable viewing glasses are configured to determine two imaging optical paths for acquiring image information by:

according to the visual angle of a doctor wearing the wearable observation glasses, two imaging light paths for acquiring image information are determined.

Further, the wearable observation glasses are used for acquiring image information acquired by the optical detectors of the two imaging light paths and displaying the image information according to the image information, and include:

image information collected by the optical detectors of the two imaging optical paths is compressed and then transmitted to the wearable observation glasses, and the wearable observation glasses determine the 3D scene information of the object space target under the large objective lens according to the image information and display the 3D scene information.

Further, the continuous variable magnification body includes:

the lens group comprises a front fixed group lens, a variable-power group lens, a compensation group lens and a rear fixed group lens, wherein the large objective lens is arranged on the tube lens, and the front fixed group lens, the variable-power group lens, the compensation group lens and the rear fixed group lens are sequentially arranged at intervals.

Further, the lighting system includes:

the optical fiber light source is connected with the illuminating lens, the illuminating lens is connected with the reflecting prism, light beams passing through the illuminating lens are turned to the large objective lens through the reflecting prism, and light spots are formed on an object space target under the large objective lens.

Further, a light homogenizing plate is arranged between the optical fiber light source and the illuminating lens.

Further, an optical filter is arranged between the illumination lens and the reflection prism.

Furthermore, the imaging light paths are distributed along the optical axis of the large objective lens in a centrosymmetric manner.

Further, the number of the imaging optical paths is greater than or equal to 3.

Further, the distance between the optical axes of two adjacent imaging optical paths is greater than or equal to 20 mm.

The invention has the following advantages:

according to the microscope exterior mirror based on enhanced/virtual display provided by the embodiment of the invention, more doctors can operate at natural visual angles, and the microscope exterior mirror with double visual points only has the main knife doctor operating at the natural visual angle, so that the operation at the natural visual angle is consistent with the normal habit of the doctors, and great convenience is brought to the operation.

Meanwhile, due to the increase of viewpoints, the three-dimensional reconstruction precision of an operation scene is improved qualitatively, and powerful technical support is provided for operation navigation and intelligent operation.

In addition, one or two paths of light paths can be used for fluorescence or narrow-band light imaging in multiple viewpoints, and compared with an operation microscope, the optical and mechanical structure is simplified, and more functions are fused.

The problem that an existing microscope is blocked in a view field and large in size is effectively solved by replacing a naked eye or polarization type 3D screen with enhanced/virtual display, if a four-viewpoint microscopic external view mirror adopts a 3D screen observation mode, each doctor needs an independent 3D screen, so that an originally narrow operating room is crowded, the equipment cost is higher, and the problem can be effectively avoided by adopting AR/VR glasses.

The invention also adopts an effective solution to the problems of color distortion, long-time viewing discomfort and the like of the prior microscope outside-view mirror, widens the design wave band of the imaging system for the color distortion, designs a wide-band apochromatic imaging system by taking the quantum curve and the illumination spectrum of a detector as the standard, reduces the true color of an object by using hardware imaging under the state of no color correction, emphasizes solving the technical problems of visual matching and low time delay of AR/VR glasses and the imaging system for the problems of viewing discomfort and the like, and effectively reduces the viewing discomfort of doctors.

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.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1 is a cross-sectional view of a microscopic exoscope system according to some embodiments of the present invention.

Fig. 2 is a perspective view of a microscopic exoscope system according to some embodiments of the present invention.

In the figure: 1. an object space target; 2. a large objective lens; 3.1, front fixed group lens; 4.1, variable power group lens; 5.1, a compensation group lens; 6.1, rear fixed group lens; 7.1, a tube mirror; 8.1, an optical detector; 9. a reflective prism; 10. an illumination lens; 11. a fiber optic light source; 12. a display system; 12.1, wearable observation glasses; 13. an imaging system.

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.

As shown in fig. 1 and 2, a microscope exterior mirror system in an embodiment of the present invention includes:

an imaging system 13, an illumination system and wearable viewing glasses 12.1; the imaging system 13 comprises a large objective lens 2 and at least three imaging optical paths positioned on the upper side of the large objective lens 2, each imaging optical path is provided with a coaxial continuous zoom lens, a tube lens 7.1 and an optical detector 8.1, the continuous zoom lens is positioned between the tube lens 7.1 and the large objective lens 2, and the tube lens 7.1 is positioned between the continuous zoom lens and the optical detector 8.1; the illumination system is used for illuminating the lower side of the large objective lens 2; the wearable observation glasses 12.1 are used for acquiring image information acquired by the optical detectors 8.1 of the two imaging light paths and displaying the image information according to the image information, wherein the wearable observation glasses 12.1 are AR glasses 12.1 or VR glasses 12.1.

So, replace bore hole or polarization formula 3D screen with reinforcing/virtual demonstration, effectively solved current microscope's visual field and sheltered from and bulky scheduling problem, the microscopic exterior mirror of four viewpoints if adopt the observation mode of 3D screen, every doctor needs an solitary 3D screen for originally more crowded just narrow operating room, equipment cost is also higher, adopts AR/VR glasses 12.1 then can effectively avoid this problem. In addition, one or two paths of light paths can be used for fluorescence or narrow-band light imaging in multiple viewpoints, and compared with an operation microscope, the optical and mechanical structure is simplified, and more functions are fused.

Illustratively, the wearable viewing glasses 12.1 are configured to determine the two imaging optical paths for acquiring image information by:

two imaging optical paths for acquiring image information are determined according to the viewing angle of the doctor wearing the wearable observation glasses 12.1.

The viewing angle of the doctor wearing the wearable observation glasses 12.1, i.e. the viewing angle of the doctor relative to the object space object 1 under the large objective 2. According to the visual angle of the doctor wearing the wearable observation glasses 12.1, two imaging light paths for acquiring image information are determined, so that the visual angle of the wearable observation glasses 12.1 is consistent with the visual angle of the doctor, the doctor can freely perform an operation, and the use convenience is improved.

Illustratively, the wearable observation glasses 12.1 are used for acquiring image information collected by the optical detectors 8.1 of the two imaging optical paths and displaying the image information according to the image information, and include:

image information collected by the optical detectors 8.1 of the two imaging optical paths is compressed and then transmitted to the wearable observation glasses 12.1, and the wearable observation glasses 12.1 determine the 3D scene information of the object space target 1 below the large objective lens 2 according to the image information and display the 3D scene information.

For example, the wearable viewing glasses 12.1 may acquire image information via wired communication. Alternatively, the wearable observation glasses 12.1 may acquire image information through wireless communication (e.g., 5G communication), which can both ensure image transmission quality and reduce occupied space. Illustratively, the real-time output frame rate of any connection is not lower than 60 frames.

Illustratively, the continuous variable magnification body includes: the front fixed group lens 3.1, the variable power group lens 4.1, the compensation group lens 5.1 and the rear fixed group lens 6.1 are arranged in sequence at intervals from the large objective lens 2 to the tube lens 7.1, and the front fixed group lens 3.1, the variable power group lens 4.1, the compensation group lens 5.1 and the rear fixed group lens 6.1.

Illustratively, the lighting system includes: the device comprises an optical fiber light source 11, a reflecting prism 9 and an illuminating lens 10, wherein the optical fiber light source 11 is connected with the illuminating lens 10, the illuminating lens 10 is connected with the reflecting prism 9, light beams passing through the illuminating lens 10 are further turned to the large objective lens 2 through the reflecting prism 9, and light spots are formed on an object target 1 below the large objective lens 2.

Illustratively, a light homogenizing plate is disposed between the fiber light source 11 and the illumination lens 10.

In this way, the spot formed on the object target 1 under the large objective lens 2 can be made more uniform.

Illustratively, a filter is disposed between the illumination lens 10 and the reflection prism 9.

Illustratively, the plurality of imaging optical paths are distributed centrosymmetrically along the optical axis of the large objective lens 2.

Illustratively, the distances between the optical axes of adjacent imaging optical paths are equal, so that more same parallax 3D image outputs can be ensured.

Illustratively, each AR/VR wearable viewing glasses 12.1 of the viewing system corresponds to two of the four optical paths, and the optical detector 8.1 connected with the imaging system 13 can be selected according to the number and the orientation of a main doctor, an assistant doctor or other medical staff, and the orientation of the optical detector 8.1 is consistent with the orientation operated by the doctor.

Illustratively, the number of imaging optical paths is greater than or equal to 3.

For example, the number of imaging optical paths may be 4.

Illustratively, the distance between the optical axes of two adjacent imaging optical paths is greater than or equal to 20 mm.

The AR/VR wearable observation glasses 12.1 must be matched with the two optical paths of the corresponding connected imaging system 13 by parallax, and parallax matching can be achieved by adjusting the distance between adjacent optical axes and designing the AR/VR glasses 12.1 optical system in various ways, which is not described herein again.

Illustratively, the illuminance of the fiber end face of the fiber light source 11 is uniform and needs to satisfy the following condition requirements:

where E1 is the illuminance (in lux) of the end face of the optical fiber, f2 is the focal length of the illumination lens 10, and f1 is the focal length of the large objective lens 2;

illustratively, four continuous zoom bodies are provided, the optical-mechanical structure of each zoom body is the same, in the process of magnification change, the four continuous zoom bodies are synchronously changed, and the size and the magnification of the image obtained by each detector 8.1 are consistent.

Specifically, the light emitted by the optical fiber light source 11 theoretically requires that the illuminance of the end face is uniform, and in practice, the end face is completely uniform and difficult to achieve, and on the premise of ensuring the total energy, a light homogenizing plate is added behind the end face of the optical fiber, the front focal plane of the illuminating lens 10 is overlapped with the light homogenizing plate, the light beam passing through the illuminating lens is turned to the large objective lens 2 through the reflecting prism 11, and a uniform light spot slightly larger than the imaging field of view is formed on the object plane. Color-demanding systems may add filters between the illumination lens and the reflective prism.

The object plane 1 is located on the focal plane of the large objective lens 2, the reflected light beam of the illuminated object is divided into four parts by the four continuous zoom lens after passing through the large objective lens 2, each part of light beam comprises information of each target point of the object plane, the difference is that the viewing angle of each part of light beam for observing the target point is different, the four continuous zoom bodies are symmetrically distributed along the center of the optical axis of the large objective lens, and the distance between the optical axes of the adjacent continuous zoom bodies is preferably 22 or 24 mm.

Of course, the distance between the optical axes of adjacent continuous metamploids may also be 20mm or a value above 20mm, and will not be described herein again.

Part of light beams pass through a front fixed group lens 3.1, a variable magnification group lens 4.1, a compensation group lens 5.1 and a rear fixed group lens 6.1 of 4 continuous variable magnification body lenses at the same time and then are focused on an optical detector 8.1 through a corresponding tube lens 7.1, the continuous variable magnification body lenses realize the amplification and the reduction of objects through the synchronous movement of the variable magnification group lenses and the compensation group lenses, 4 continuous variable magnification bodies require synchronous zooming, and the optical mechanical structures of each variant body and the tube lens are the same.

The image visual angles of the 4 optical detectors are different, the images of any two optical detectors are compressed and output to the wearable observation glasses 12.1, and then 3D scene information can be obtained, the selection of the visual angles depends on the positions of doctors, preferably, the images of two adjacent detectors are output to one AR/VR wearable observation glasses, and at least four doctors can be guaranteed to perform operations simultaneously under natural vision. The connection between the wearable observation glasses 12.1 and the detector in the prior art needs to be wired to ensure high frame rate and high quality output, and with the development of the 5G technology, the wearable observation glasses 12.1 and the detector are preferably connected wirelessly.

Compared with the existing microscopic exterior mirror, the four-viewpoint microscopic exterior mirror based on enhancement/virtual display provided by the embodiment of the invention has the advantages that the number of viewpoints is increased, more doctors can operate under natural visual angles, the operation under the natural visual angles of the dual-viewpoint microscopic exterior mirror is consistent with the normal habit of doctors only when one doctor is in the natural visual angle state, great convenience is brought to the operation, meanwhile, the number of viewpoints is increased, the three-dimensional reconstruction precision of an operation scene is improved qualitatively, and powerful technical support is provided for operation navigation and intelligent operation. The problem that an existing microscope is blocked in a view field and large in size is effectively solved by replacing a naked eye or polarization type 3D screen with enhanced/virtual display, if a four-viewpoint microscopic external view mirror adopts a 3D screen observation mode, each doctor needs an independent 3D screen, so that an originally narrow operating room is crowded, the equipment cost is higher, and the problem can be effectively avoided by adopting AR/VR glasses. The invention also adopts an effective solution to the problems of color distortion, long-time viewing discomfort and the like of the prior microscope outside-view mirror, widens the design wave band of the imaging system for the color distortion, designs a wide-band apochromatic imaging system by taking the quantum curve and the illumination spectrum of a detector as the standard, reduces the true color of an object by using hardware imaging under the state of no color correction, emphasizes solving the technical problems of visual matching and low time delay of AR/VR glasses and the imaging system for the problems of viewing discomfort and the like, and effectively reduces the viewing discomfort of doctors.

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.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.