CN120370529B - Entity microscope - Google Patents
Entity microscopeInfo
- Publication number
- CN120370529B CN120370529B CN202510855244.6A CN202510855244A CN120370529B CN 120370529 B CN120370529 B CN 120370529B CN 202510855244 A CN202510855244 A CN 202510855244A CN 120370529 B CN120370529 B CN 120370529B
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- group
- prism
- lens
- lens group
- positive lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/241—Devices for focusing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/248—Base structure objective (or ocular) turrets
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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
- G02B21/361—Optical details, e.g. image relay to the camera or image sensor
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/12—Beam splitting or combining systems operating by refraction only
- G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Microscoopes, Condenser (AREA)
Abstract
本发明涉及显微镜的技术领域，尤其涉及一种实体显微镜，包括目镜、瞳距调节组件、光学铰链组、棱镜转向组、分布式反摄光路组件和连续变倍物镜组；分布式反摄光路组件包括负透镜组、正透镜、负透镜和正透镜组，负透镜组设置于棱镜转向组与连续变倍物镜组之间，正透镜设置于光学铰链组与棱镜转向组之间，负透镜和正透镜组均设置于光学铰链组中的直角棱镜之间；通过在实体显微镜各个部件之间依次设置负透镜组、正透镜、负透镜和正透镜组，从而结合机械结构空间布局，调整光束口径，减少棱镜对于光束的拦截，减少轴外渐晕，解决了现有技术中实体显微镜由于光路经过多组棱镜导致具有较大轴外渐晕、成像质量差的技术问题的技术问题，满足整体成像要求。
The present invention relates to the technical field of microscopes, and in particular to a solid microscope comprising an eyepiece, an interpupillary distance adjustment component, an optical hinge group, a prism steering group, a distributed reflective optical path component, and a continuously variable magnification objective lens group; the distributed reflective optical path component comprises a negative lens group, a positive lens, a negative lens, and a positive lens group; the negative lens group is arranged between the prism steering group and the continuously variable magnification objective lens group, the positive lens is arranged between the optical hinge group and the prism steering group, and both the negative lens and the positive lens group are arranged between right-angle prisms in the optical hinge group; by sequentially arranging the negative lens group, the positive lens, the negative lens, and the positive lens group between various components of the solid microscope, thereby combining the mechanical structure spatial layout, adjusting the light beam aperture, reducing the interception of the light beam by the prism, and reducing off-axis vignetting, thereby solving the technical problem in the prior art that the solid microscope has large off-axis vignetting and poor imaging quality due to the light path passing through multiple prism groups, and meeting the overall imaging requirements.
Description
Technical Field
The invention relates to the technical field of microscopes, in particular to a solid microscope.
Background
The real microscope, also called a stereoscopic microscope, is an advanced visual instrument based on visible light as an illumination source, and is characterized in that the real microscope can provide a positive stereoscopic impression of an observed object, so that an observer can understand the three-dimensional structure of the object more intuitively and clearly. The working principle is that an object is initially magnified through a precisely designed objective lens system, then further magnified through an eyepiece, and finally an enlarged image with depth perception is presented to an observer.
Currently, existing solid state microscopes generally have an eyepiece, an interpupillary adjustment group, an optical hinge group, a continuous variable magnification objective group, and a light source group connected up to down. The sample to be observed is arranged below the continuous variable magnification objective lens group, and the light source group is arranged around the bottom of the objective lens group to provide illumination for the microscope. The continuous zoom objective lens group is provided with a zoom component which can continuously adjust the zoom magnification of an object image and present a stable object image at a forming position, the optical hinge group is used for connecting the pupil distance adjusting group and the continuous zoom objective lens group, and the pupil distance adjusting group is provided with a beam splitting prism group which can divide an object image light path into two parts, thereby forming a left light path and a right light path, and respectively imaging and two eyepieces.
However, the existing solid microscope is provided with a plurality of elements, wherein the total length of the prism and the air interval are folded to form an equivalent air layer thickness which exceeds the focal length corresponding to the proper magnification range, so that the focal length and the field of view of the whole microscope are not in accordance with the requirements of customers, larger off-axis vignetting occurs, and the imaging quality is low.
Disclosure of Invention
The invention aims to provide a solid microscope, which solves the technical problems of large off-axis vignetting and poor imaging quality of the solid microscope in the prior art caused by the fact that a light path passes through a plurality of groups of prisms.
In a first aspect, the present invention provides an entity microscope, including an eyepiece, a pupil distance adjusting component, an optical hinge group, a prism steering group, a distributed anti-photographing optical path component, and a continuous zoom objective group;
the ocular is connected with the pupil distance adjusting component, the continuous zoom objective lens group is arranged above an observed object, the prism steering group is connected with the continuous zoom objective lens group, and two ends of the optical hinge group are respectively connected with the pupil distance adjusting component and the prism steering group;
The distributed anti-light path component comprises a negative lens group, a positive lens, a negative lens and a positive lens group, wherein the negative lens group is arranged between the prism steering group and the continuous variable magnification objective lens group so as to enlarge the caliber of a light beam, the positive lens is arranged between the optical hinge group and the prism steering group so as to shrink the caliber of the light beam, the optical hinge group is sequentially provided with a first right-angle prism, a second right-angle prism and a third right-angle prism, the negative lens is arranged between the second right-angle prism and the third right-angle prism in the optical hinge group so as to enlarge the caliber of the light beam, and the positive lens group is arranged between the first right-angle prism and the third right-angle prism so as to shrink the caliber of the light beam.
Further, the prism steering group comprises a beam splitting prism seat, a beam splitting prism, a shooting light path barrel and an industrial camera;
the bottom of beam splitting prism seat is provided with first through-hole along vertical direction, the top of beam splitting prism seat is provided with the second through-hole along vertical direction, the bottom of beam splitting prism seat is provided with the third through-hole along the horizontal direction, the bottom of beam splitting prism seat with continuous variable magnification objective group is connected, beam splitting prism is fixed in the beam splitting prism seat, in order to receive continuous variable magnification objective group's light beam, and will the light beam splitting in second through-hole direction with the third through-hole direction, the one end of a light path section of thick bamboo of making a video recording connect in beam splitting prism's third through-hole department, the other end of a light path section of thick bamboo of making a video recording with industrial camera is connected, negative lens group is fixed in first through-hole, the optical axis of negative lens group with the light beam coincidence.
Further, the negative lens group comprises a first lens and a second lens which are arranged at intervals, the focal lengths of the first lens and the second lens are opposite, and the optical axes of the first lens and the second lens are coincident.
Further, the solid microscope further comprises a positive lens mount;
The bottom of positive lens mount pad with beam splitting prism seat is connected, the top of positive lens mount pad with optical hinge group is connected, positive lens mount pad runs through along vertical direction and is provided with the mounting hole, positive lens set up in the mounting hole, the mounting hole with first through-hole coaxial setting.
Further, the optical hinge group is provided with a hinge seat, a first rotating body and a second rotating body;
One side of the first rotating body is rotationally arranged on the hinge seat along a first direction, the other side of the first rotating body is connected with the pupil distance adjusting component, one side of the second rotating body is rotationally arranged on the hinge seat along a second direction, the other side of the second rotating body is connected with the continuous variable magnification objective lens group, the first direction and the second direction are parallel, the first rotating body is in transmission connection with the second rotating body, the first right angle prism is arranged in the first rotating body, the second right angle prism is arranged in the second rotating body, the third right angle prism is arranged in the hinge seat, the second right angle prism is configured to reflect an object image of the continuous variable magnification objective lens group to the third right angle prism, the third right angle prism is configured to reflect the object image to the first right angle prism, and the first right angle prism is configured to reflect the object image to the pupil distance adjusting component.
Further, the shooting optical path barrel is arranged in a hollow mode, and a lens group is arranged in the shooting optical path barrel;
the lens group is configured to be capable of adjusting a focal length and a beam caliber of the object image beam, and the lens group is matched with the negative lens group and the positive lens to form an image pickup light path reverse image pickup light path component.
Further, a lens barrel is further arranged in the image pickup optical path barrel, the lens barrel is slidably arranged in the image pickup optical path barrel along the axial direction of the image pickup optical path barrel, and the lens group is arranged in the lens barrel.
Further, the combined focal length of the negative lens group is set to-540 mm to-660 mm;
The focal length of the positive lens is set to 125mm to 142mm;
The focal length of the positive lens group is set to be 502mm to 615mm;
the focal length of the negative lens is set to-425 mm to-332 mm.
Further, a combined total focal length formed by the distributed anti-photographing optical path assembly, the ocular, the pupil distance adjusting assembly, the optical hinge group, the prism steering group and the continuous variable magnification objective group in a matched mode is set to be 175-180 mm.
Further, the solid microscope further comprises a magnification feedback group, and two ends of the magnification feedback group are respectively connected with the continuous variable magnification objective group and the industrial camera.
Compared with the prior art, the entity microscope comprises an eyepiece, a pupil distance adjusting component, an optical hinge group, a prism steering group, a distributed anti-photographing optical path component and a continuous variable magnification objective group, wherein the eyepiece is connected with the pupil distance adjusting component, the continuous variable magnification objective group is arranged above an observed object, the prism steering group is connected with the continuous variable magnification objective group, two ends of the optical hinge group are respectively connected with the pupil distance adjusting component and the prism steering group, the distributed anti-photographing optical path component comprises a negative lens group, a positive lens, a negative lens and a positive lens group, the negative lens group is arranged between the prism steering group and the continuous variable magnification objective group so as to enlarge the beam caliber, the positive lens is arranged between the optical hinge group and the prism steering group so as to shrink the beam caliber, the optical hinge group is sequentially provided with a first right angle prism, a second right angle prism and a third right angle prism so as to enlarge the beam caliber, the positive lens group is arranged between the first right angle prism and the third right angle prism so as to shrink the beam caliber, and the negative lens group is sequentially arranged between all components of the entity microscope, so that the problem of the entity microscope is solved that the imaging aperture is reduced, the problem of the entity microscope is solved, and the problem of the whole image is solved, and the problem of the outside the system is not required by the large-size of an imaging system is solved, and the system is due to the fact that the negative lens is required to the imaging system is not to be combined with a large-axis, or an imaging system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a physical microscope according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the whole structure of a solid state microscope according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a structure of an optical hinge set in a physical microscope according to an embodiment of the present invention;
FIG. 4 is a block diagram cross-sectional view of an optical hinge assembly in a physical microscope according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a structure of a beam-splitting prism holder and a beam-splitting prism in a physical microscope according to an embodiment of the present invention;
Fig. 6 is a schematic cross-sectional view of a photographing optical path barrel in a physical microscope according to an embodiment of the present invention.
Reference numerals:
100. An eyepiece;
200. pupil distance adjusting component;
300. The optical hinge assembly comprises a first right-angle prism 310, a second right-angle prism 320, a third right-angle prism 330, a hinge seat 340, a first rotating body 350, and a second rotating body 360;
400. A prism steering group; 410, a beam splitting prism seat, 420, a beam splitting prism, 430, an imaging light path cylinder, 431, a lens group, 432, a lens cylinder, 440, an industrial camera;
510. Negative lens group 520, positive lens 521, positive lens mount base 530, negative lens 540, positive lens group;
600. A continuous variable magnification objective lens group;
700. and (5) multiplying power feedback groups.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1 to 6, the embodiment of the present invention provides a solid microscope, which includes an eyepiece 100, a pupil distance adjusting component 200, an optical hinge component 300, a prism turning component 400, a distributed anti-photographing optical path component and a continuous variable magnification objective component 600, wherein the eyepiece 100 is connected with the pupil distance adjusting component 200, the continuous variable magnification objective component 600 is disposed above an observed object, the prism turning component 400 is connected with the continuous variable magnification objective component 600, two ends of the optical hinge component 300 are respectively connected with the pupil distance adjusting component 200 and the prism turning component 400, the distributed anti-photographing optical path component includes a negative lens component 510, a positive lens 520, a negative lens 530 and a positive lens component 540, the negative lens component 510 is disposed between the prism turning component 400 and the continuous variable magnification objective component 600 to enlarge a beam caliber, the positive lens 520 is disposed between the optical hinge component 300 and the prism turning component 400 to shrink the beam caliber, the optical hinge component 300 is sequentially provided with a first right angle prism 310, a second right angle prism 320 and a third right angle prism 330, the negative lens 530 is disposed between the second right angle prism 320 and the third right angle prism 330 in the optical hinge component 300 to shrink the beam caliber, and the positive lens component 540 is disposed between the right angle prism and the right angle prism 330.
That is, according to the solid microscope provided by the embodiment of the invention, the negative lens group 510, the positive lens 520, the negative lens 530 and the positive lens group 540 are sequentially arranged among the components of the solid microscope, so that the beam caliber is adjusted by combining the spatial layout of a mechanical structure, the prisms are ensured not to intercept or to intercept less light beams, the off-axis vignetting is reduced, the technical problem that the solid microscope in the prior art has larger off-axis vignetting and poor imaging quality due to the fact that the light path passes through a plurality of groups of prisms is solved, and the integral imaging requirement is met.
Specifically, the continuous variable magnification objective lens 600 is disposed above the observed object, and the continuous variable magnification objective lens 600 has a variable magnification component capable of continuously adjusting the variable magnification of the object image and presenting a stable object image at the molding position. The top of the continuous variable magnification objective lens 600 is connected with a prism turning group 400, the prism turning group 400 is arranged between the continuous variable magnification objective lens 600 and the optical hinge group 300 as a hinge, the prism turning group 400 is provided with a light splitting mechanism, and the light path can be divided into two parts by a light splitting prism 420 in the light splitting mechanism and respectively sent to the optical hinge group 300 and the industrial camera 440. The optical hinge group 300 has one end connected to the eyepiece 100 and the pupil distance adjusting group and the other end connected to the prism turning group 400, thereby changing the viewing angle of the eyepiece 100. The pupil distance adjusting unit 200 has a group of beam splitting prisms 420 capable of dividing the object image optical path into two, thereby forming left and right optical paths, and imaging and two eyepieces 100, respectively. And the distributed anti-photographing optical path assembly includes a negative lens group 510, a positive lens 520, a negative lens 530, and a positive lens group 540. The positive lens 520 is disposed between the optical hinge assembly 300 and the prism turning assembly 400 to reduce the beam caliber, the optical hinge assembly 300 is sequentially provided with a first right angle prism 310, a second right angle prism 320 and a third right angle prism 330, the negative lens 530 is disposed between the two second right angle prisms 320 and the third right angle prism 330 in the optical hinge assembly 300 to expand the beam caliber, and the positive lens assembly 540 is disposed between the first right angle prism 310 and the third right angle prism 330 to reduce the beam caliber.
Further, the prism steering assembly 400 includes a prism base 410, a prism 420, a photographing optical path barrel 430 and an industrial camera 440, wherein a first through hole is provided at the bottom of the prism base 410 along the vertical direction, a second through hole is provided at the top of the prism base 410 along the vertical direction, a third through hole is provided at the bottom of the prism base 410 along the horizontal direction, the bottom of the prism base 410 is connected with the continuous variable magnification objective lens 600, the prism 420 is fixed in the prism base 410 to receive the light beam of the continuous variable magnification objective lens 600 and to split the light beam in the second through hole direction and the third through hole direction, one end of the photographing optical path barrel 430 is connected to the third through hole of the prism 420, the other end of the photographing optical path barrel 430 is connected with the industrial camera 440, the negative lens 510 is fixed to the first through hole, and the optical axis of the negative lens 510 coincides with the light beam.
Specifically, the prism mount 410 is square and hollow. The top is provided with a circular second through hole so as to communicate with the prism turning group 400 and is connected with the prism turning group 400 by bolts. The bottom of which is provided with a circular first through hole so as to communicate with the continuous variable magnification objective lens 600 and is coupled with the continuous variable magnification objective lens 600 by a bolt. The prism mount 410 is provided with a third through hole in the horizontal direction, and the photographing optical path barrel 430 is disposed toward the third through hole and is connected to the prism mount 410 by a bolt. The dichroic prism 420 is fixed in the dichroic prism seat 410, and its incident surface faces the continuous variable magnification objective lens 600. The two light exits toward the prism turning group 400 and the image pickup optical path barrel 430, respectively. In this embodiment, the beam splitter prism holder 410 further has a 2-type Proprietary prism, which is matched with the beam splitter prism 420, so as to fulfill the requirements of inverting the inverted image formed by the objective lens system and splitting the image capturing light path. The photographing optical path barrel 430 is disposed on one side of the beam splitter prism base 410 along the horizontal direction. The beam splitting prism 420 is disposed right above the continuous variable magnification objective lens 600, thereby receiving and splitting the object image beam of the continuous variable magnification objective lens 600 in the horizontal and vertical directions, and then delivering the object image beam to the prism turning group 400 and the photographing optical path barrel 430. The other end of the photographing optical path barrel 430 is connected to the industrial camera 440 by a bolt. The first through hole is provided with a fixing groove, and the negative lens 530 is installed in the fixing groove, so that the optical axis of the negative lens group 510 is ensured to coincide with the object image beam emitted from the continuous variable magnification objective lens group 600. Accordingly, the beam diameter of the object beam can be adjusted by the negative lens group 510 so as to enter the beam splitter prism 420 accurately.
Further, the negative lens group 510 includes a first lens and a second lens disposed at intervals, the focal lengths of the first lens and the second lens are opposite, and the optical axes of the first lens and the second lens coincide.
Specifically, the negative lens group 510 includes a first lens and a second lens disposed at an interval, the first lens being disposed as a convex mirror, the second lens being disposed as a concave mirror, with a spacer interval disposed therebetween. The focal lengths of the first lens and the second lens are opposite, and the optical axes are coincident, so that the refraction of the light beam can be adjusted through the first lens and the second lens on the premise of not changing the object image direction, and the aperture and the focal length of the object image light beam are changed.
Further, the solid microscope further comprises a positive lens mounting base 521, wherein the bottom of the positive lens mounting base 521 is connected with the beam splitter prism base 410, the top of the positive lens mounting base 521 is connected with the optical hinge set 300, a mounting hole is formed in the positive lens mounting base 521 in a penetrating manner along the vertical direction, the positive lens 520 is arranged in the mounting hole, and the mounting hole and the first through hole are coaxially arranged.
Specifically, the bottom of the positive lens mount 521 is connected to the prism mount 410 by bolts, so that the positive lens mount 521 is fixed to the prism mount 410, while the top of the positive lens mount 521 is connected to the optical hinge set 300 by bolts. The positive lens mounting base 521 is provided with the mounting hole along the vertical direction penetration, and positive lens 520 sets up in the mounting hole, and the mounting hole sets up with first through-hole is coaxial, just also makes the optical axis of positive lens 520 can overlap with the object-image light beam that beam splitting prism 420 launched, guarantees the optical axis coincidence degree of positive lens 520, and then adjusts the light beam bore of object-image light beam through positive lens 520, makes its exact entering beam splitting prism 420.
Further, the optical hinge assembly 300 is provided with a hinge seat 340, a first rotating body 350 and a second rotating body 360, one side of the first rotating body 350 is rotatably arranged on the hinge seat 340 along a first direction, the other side of the first rotating body 350 is connected with the pupil distance adjusting assembly 200, one side of the second rotating body 360 is rotatably arranged on the hinge seat 340 along a second direction, the other side of the second rotating body 360 is connected with the continuous variable magnification objective lens assembly 600, the first direction and the second direction are parallel, the first rotating body 350 and the second rotating body 360 are in transmission connection, a first right angle prism 310 is arranged in the first rotating body 350, a second right angle prism 320 is arranged in the second rotating body 360, a third right angle prism 330 is arranged in the hinge seat 340, the second right angle prism 320 is configured to reflect an object image of the continuous variable magnification objective lens assembly 600 to the third right angle prism 330, the third right angle prism 330 is configured to reflect the object image to the first right angle prism 310, and the first right angle prism 310 is configured to reflect the object image to the pupil distance adjusting assembly 200.
Specifically, the hinge base 340 is specifically configured as a square box body that is disposed in a hollow manner, and two ends of the square box body are disposed in an opening manner. One side of the first rotating body 350 is rotatably disposed on the hinge base 340 along a first direction, one side of the second rotating body 360 is rotatably disposed on the hinge base 340 along a second direction, in this embodiment, the first direction and the second direction are horizontal directions with different heights, and the first direction and the second direction are parallel. The other side of the first rotating body 350 extends out of the hinge seat 340 and is connected with the pupil distance adjusting assembly 200 by bolts, and the other side of the second rotating body 360 extends out of the hinge seat 340 and is connected with the continuous variable magnification objective lens 600 by bolts. Thereby, the angle between the first rotating body 350 and the second rotating body 360 can be adjusted by the rotation of the first rotating body 350 or the second rotating body 360. The first rotating body 350 is internally provided with a first right-angle prism 310, the incident optical axis of the first right-angle prism 310 coincides with the rotation center axis of the first rotating body 350, and the emergent optical axis of the first right-angle prism 310 is arranged along a direction perpendicular to the first direction, so that the optical path of the object image can be transmitted to the pupil distance adjusting assembly 200 connected with the first rotating body 350. The second rotating body 360 is internally provided with a second right-angle prism 320, the light-emitting optical axis of the second right-angle prism 320 coincides with the rotation central axis of the second rotating body 360, and the incident optical axis of the second right-angle prism 320 is arranged along a direction perpendicular to the second direction, so as to receive the object image light beam emitted by the continuous variable magnification objective lens. The third right angle prism 330 is fixed to the hinge base 340, and disposed at one side of the first rotating body 350 and the second rotating body 360, and the incident optical axis thereof coincides with the light emitting optical axis of the second right angle prism 320, and the light emitting optical axis coincides with the incident optical axis of the first right angle prism 310. Thus, when the first rotator 350 and the second rotator 360 rotate, the first right angle prism 310 and the second right angle prism 320 also rotate, but the light outgoing path and the light incoming path of the two are not moved, that is, the change of the observation angle is realized. The negative lens 530 is disposed between the second right angle prism 320 and the third right angle prism 330, provides a negative focal length, and can diffuse the aperture of the object beam reflected by the second right angle prism 320, so as to adapt to the third right angle prism 330. And the positive lens group 540 includes a negative lens 530 and a positive lens 520 having a positive combined focal length, and is capable of shrinking the aperture of the speed of light of the objective lens reflected by the third right angle prism 330 so as to be adapted to the first right angle prism 310. The negative lens 530 and the positive lens group 540 cooperate with each other to adjust the beam aperture, thereby adapting to the prism model, reducing off-axis vignetting and improving imaging quality.
Further, the image pickup optical path barrel 430 is hollow, the lens group 431 is disposed in the image pickup optical path barrel 430, the lens group 431 is configured to adjust the focal length and the beam caliber of the object image beam, and the lens group 431 cooperates with the negative lens group 510 and the positive lens 520 to form an image pickup optical path reverse image pickup optical path assembly.
Specifically, the photographing optical path barrel 430 is hollow and configured to be cylindrical, and the lens group 431 is configured to be a positive lens group 540 or a negative lens group 510 according to the actual requirement of the industrial camera 440, so as to converge the beam caliber or enlarge the beam caliber, and adjust the focal length of the object image.
Further, a lens barrel 432 is further disposed in the image pickup optical path barrel 430, the lens barrel 432 is slidably disposed in the image pickup optical path barrel 430 along an axial direction of the image pickup optical path barrel 430, and the lens group is disposed in the lens barrel 432.
Specifically, the lens barrel 432 is provided in a cylindrical shape, is provided in a hollow shape, and has an outer diameter slightly smaller than an inner diameter of the imaging optical path barrel 430, thereby facilitating sliding placement in the imaging optical path barrel 430. The lens group is snapped into the lens barrel 432. By sliding the lens barrel 432 in the photographing optical path barrel 430, the distance between the lens group and the industrial camera 440 and the beam splitter prism 420 can be adjusted, the requirements of the diameter and magnification of the imaging surface of the industrial camera 440 can be met, the manufacturing errors of the industrial camera 440, the objective lens system and the like can be made up, and the image surface definition of the industrial camera 440 and the eyepiece 100 system can be ensured to be synchronous.
Further, the combined focal length of the negative lens group 510 is set to-540 mm to-660 mm, the focal length of the positive lens 520 is set to 125mm to 142mm, the focal length of the positive lens group 540 is set to 502mm to 615mm, and the focal length of the negative lens 530 is set to-425 mm to-332 mm.
Specifically, in the present embodiment, the combined focal length of the negative lens group 510 is set to-600 mm, the focal length of the positive lens 520 is set to 139mm, the focal length of the positive lens group 540 is set to 558mm, and the focal length of the negative lens 530 is set to-386 mm. Through the focal length matching among the negative lens group 510, the positive lens 520, the positive lens group 540 and the negative lens 530, the focal length of the whole machine can be adjusted under the condition of meeting the mechanical structural space of the whole machine, thereby meeting the requirement of the proper magnification range of the whole machine.
Further, the combined total focal length formed by the distributed anti-photographing optical path assembly in cooperation with the eyepiece 100, the pupil distance adjusting assembly 200, the optical hinge group 300, the prism turning group 400, and the continuous variable magnification objective lens group 600 is set to 175mm to 180mm.
Specifically, in the present embodiment, the focal lengths of the eyepiece 100, the pupil distance adjusting assembly 200, the optical hinge group 300, the prism turning group 400, and the continuous variable magnification objective lens group 600 are fixed, and the combined focal length of the distributed anti-photographing optical path assembly can be adjusted by the focal lengths of the negative lens group 510, the positive lens 520, the positive lens group 540, and the negative lens 530, so as to ensure that the focal length of the entire eyepiece 100 is in the range of 175mm to 180mm, preferably 175mm, and thus the observation requirement of the eyepiece 100 is satisfied.
Further, the physical microscope further includes a magnification feedback set 700, and both ends of the magnification feedback set 700 are connected to the continuous variable magnification objective lens set 600 and the industrial camera 440, respectively.
Specifically, the magnification feedback group 700 is specifically provided with a connection wire and a magnification test sensor provided on the continuously variable magnification objective group 600, and may be provided as a photoelectric sensor to detect the position of an adjusting member on the continuously variable magnification objective group 600 to detect magnification data. The connecting wires connect the industrial camera 440 and the magnification test sensor, so that magnification data is fed back to the industrial camera 440, thereby realizing real-time feedback of the magnification, and facilitating accurate detection of the industrial camera 440.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.
Claims (10)
1. The solid microscope is characterized by comprising an ocular (100), a pupil distance adjusting component (200), an optical hinge group (300), a prism steering group (400), a distributed anti-shooting optical path component and a continuous variable magnification objective group (600);
The eyepiece (100) is connected with the pupil distance adjusting assembly (200), the continuous variable magnification objective lens group (600) is arranged above an observed object, the prism steering group (400) is connected with the continuous variable magnification objective lens group (600), and two ends of the optical hinge group (300) are respectively connected with the pupil distance adjusting assembly (200) and the prism steering group (400);
The distributed anti-light path assembly comprises a negative lens group (510), a positive lens (520), a negative lens (530) and a positive lens group (540), wherein the negative lens group (510) is arranged between the prism steering group (400) and the continuous zoom objective group (600) so as to enlarge the beam caliber, the positive lens (520) is arranged between the optical hinge group (300) and the prism steering group (400) so as to shrink the beam caliber, the optical hinge group (300) is sequentially provided with a first right-angle prism (310), a second right-angle prism (320) and a third right-angle prism (330), the negative lens (530) is arranged in the optical hinge group (300) between the second right-angle prism (320) and the third right-angle prism (330) so as to enlarge the beam caliber, and the positive lens group (540) is arranged between the first right-angle prism (310) and the third right-angle prism (330) so as to shrink the beam caliber.
2. The solid state microscope of claim 1, wherein the prism turning group (400) comprises a beam splitting prism mount (410), a beam splitting prism (420), a photographic light path barrel (430), and an industrial camera (440);
The bottom of beam splitting prism seat (410) is provided with first through-hole along vertical direction, the top of beam splitting prism seat (410) is provided with the second through-hole along vertical direction, the bottom of beam splitting prism seat (410) is provided with the third through-hole along the horizontal direction, the bottom of beam splitting prism seat (410) with continuous variable magnification objective (600) are connected, beam splitting prism (420) are fixed in beam splitting prism seat (410) to receive the light beam of continuous variable magnification objective (600), and with the light beam split in second through-hole direction with the third through-hole direction, the one end of making a video recording light path section of thick bamboo (430) is connected in beam splitting prism (420) the third through-hole department, the other end of making a video recording light path section of thick bamboo (430) with industry camera (440) are connected, negative lens group (510) are fixed in first through-hole, the optical axis of negative lens group (510) coincides with the light beam.
3. The solid state microscope of claim 2, wherein the negative lens group (510) comprises a first lens and a second lens arranged at intervals, the focal lengths of the first lens and the second lens being opposite, and the optical axes of the first lens and the second lens being coincident.
4. A solid state microscope according to claim 3, characterized in that the solid state microscope further comprises a positive lens mount (521);
The bottom of positive lens mount pad (521) with beam splitting prism seat (410) is connected, the top of positive lens mount pad (521) with optical hinge group (300) are connected, positive lens mount pad (521) runs through along vertical direction and is provided with the mounting hole, positive lens (520) set up in the mounting hole, the mounting hole with first through-hole coaxial setting.
5. A solid state microscope according to claim 3, characterised in that the optical hinge set (300) is provided with a hinge mount (340), a first rotator (350), a second rotator (360);
One side of the first rotating body (350) is rotatably arranged in the hinge seat (340) along a first direction, the other side of the first rotating body (350) is connected with the pupil distance adjusting component (200), one side of the second rotating body (360) is rotatably arranged in the hinge seat (340) along a second direction, the other side of the second rotating body (360) is connected with the continuous magnification-varying objective lens group (600), the first direction and the second direction are arranged in parallel, the first rotating body (350) is in transmission connection with the second rotating body (360), the first right angle prism (310) is arranged in the first rotating body (350), the second right angle prism (320) is arranged in the second rotating body (360), the third right angle prism (330) is arranged in the hinge seat (340), the second right angle prism (320) is configured to reflect an object image of the continuous magnification-varying objective lens group (600) to the third prism (330), the first right angle prism (310) is configured to reflect the object image of the pupil distance adjusting component (310).
6. The solid state microscope according to claim 2, wherein the image capturing optical path barrel (430) is hollow, and a lens group (431) is disposed in the image capturing optical path barrel (430);
The lens group (431) is configured to be capable of adjusting the focal length and the beam caliber of a beam of an object image, and the lens group (431) forms an image pickup optical path reflection optical path component in cooperation with the negative lens group (510) and the positive lens (520).
7. The solid state microscope according to claim 6, wherein a lens barrel (432) is further provided in the imaging optical path barrel (430), the lens barrel (432) is slidably provided in the imaging optical path barrel (430) along the axial direction of the imaging optical path barrel (430), and the lens group (431) is provided in the lens barrel (432).
8. The solid state microscope according to any one of claims 1-7, characterized in that the combined focal length of the negative lens group (510) is set to-540 mm to-660 mm;
The focal length of the positive lens (520) is set to 125mm to 142mm;
the focal length of the positive lens group (540) is set to be 502mm to 615mm;
the focal length of the negative lens (530) is set to-425 mm to-332 mm.
9. The solid state microscope of claim 8, wherein the combined total focal length of the distributed anti-photographing optical path assembly in cooperation with the eyepiece (100), the pupil distance adjustment assembly (200), the optical hinge group (300), the prism turning group (400) and the continuously variable magnification objective lens group (600) is set to 175mm to 180mm.
10. The solid state microscope according to claim 2, further comprising a magnification feedback group (700), both ends of the magnification feedback group (700) being connected to the continuously variable magnification objective group (600) and the industrial camera (440), respectively.
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| JPH06337351A (en) * | 1993-05-31 | 1994-12-06 | Olympus Optical Co Ltd | Substantial microscope |
| JP3689124B2 (en) * | 1993-11-18 | 2005-08-31 | オリンパス株式会社 | Stereo microscope |
| WO2012141868A1 (en) * | 2011-04-15 | 2012-10-18 | Faro Technologies, Inc. | Enhanced position detector in laser tracker |
| CN104730698B (en) * | 2015-02-06 | 2017-02-22 | 苏州速迈医疗设备有限公司 | Operating microscope |
| CN107357032A (en) * | 2017-08-16 | 2017-11-17 | 天津津航技术物理研究所 | A kind of image space telecentricity for surgical operation microscope connects mesh objective system and its interpupillary distance adjusting method |
| CN111897119A (en) * | 2020-08-04 | 2020-11-06 | 合肥登特菲医疗设备有限公司 | Folding hinge binocular operation microscope optical system |
| CN114442299B (en) * | 2021-12-30 | 2024-03-19 | 宁波永新光学股份有限公司 | An optical imaging system for a dental operating microscope |
| CN117192758A (en) * | 2022-05-30 | 2023-12-08 | 苏州速迈医学科技股份有限公司 | An optical adapter device and surgical microscope |
| CN117784385A (en) * | 2023-12-15 | 2024-03-29 | 宁波永新光学股份有限公司 | A rotating drum surgical microscope optical system |
| CN119667928A (en) * | 2025-02-24 | 2025-03-21 | 宁波晟达仪器有限公司 | Stereo microscope |
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