CN220855334U - Naked eye 3D continuous zoom stereoscopic microscope - Google Patents

Abstract

The utility model discloses a naked eye 3D continuous zoom stereoscopic microscope, which comprises: the microscope stand comprises a microscope base, a stand column, a coarse focusing mechanism and an objective table, wherein the stand column and the objective table are connected with the microscope base, and the coarse focusing mechanism is connected with the stand column and is used for driving the microscope body to move; the lens body comprises a shell, an imaging unit, a fine focusing mechanism, a first zooming focusing unit and a second zooming focusing unit: the optical axes of the two zoom focusing units are intersected and respectively comprise a rear fixed lens group, a compensation lens group, a zoom lens group and a front fixed lens group which are arranged along the optical axis; the fine focusing mechanism is used for driving the corresponding compensation lens group and the corresponding zoom lens group to adjust the multiplying power in a relative motion manner; the imaging unit comprises two imaging sensors and is used for acquiring the object image to be detected obtained by the zoom focusing unit; and the naked eye 3D display terminal is used for acquiring and displaying signals of the imaging sensors. The method can obtain the super-large depth of field and stereoscopic images with continuous zoom and amplification, has high imaging quality, relieves the fatigue of human body and improves the user experience.

Description

Naked eye 3D continuous zoom stereoscopic microscope

Technical Field

The utility model belongs to the technical field of microscopes, and particularly relates to a naked eye 3D continuous zoom stereoscopic microscope.

Background

The continuous zoom stereo microscope is a basic tool widely applied to the fields of teaching demonstration, bioengineering, IT industry detection and the like. The microscope consists of a microscope stand and a microscope body, and a corresponding eyepiece is used for secondary amplification observation of an object to be measured. Because of the advantages of ultra-long working distance, clear imaging, wide field of view, ultra-large depth of field and the like, the device becomes an ideal observation instrument used in various industries and fields. But when traditional stereoscopic microscope observes, the stereoscopic imaging can be seen through two ocular lenses simultaneously for left and right eyes, the exit pupil distance of the ocular lenses is required to be adjusted when the stereoscopic imaging device is used, people can easily generate human eye fatigue and cervical vertebra injury during observation, the stereoscopic imaging device is not suitable for long-time observation, the operation is complex, accurate zoom adjustment and large magnification change are not facilitated, the size of the ocular lenses is increased, and the miniaturization is not facilitated.

Disclosure of utility model

Aiming at the problems, the utility model provides a naked eye 3D continuous zoom stereoscopic microscope, which can obtain the effects of super-large depth of field and stereoscopic image of continuous zoom magnification, has large magnification adjustment range and high imaging quality, can relieve visual fatigue and cervical vertebra injury observed by human eyes, and improves user experience.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a naked eye 3D continuous zoom stereoscopic microscope, which comprises a microscope stand, a microscope body and a naked eye 3D display terminal, wherein:

The microscope stand comprises a microscope base, a stand column, a coarse focusing mechanism and an objective table, wherein the stand column and the objective table are connected with the microscope base, and the coarse focusing mechanism is connected with the stand column and is used for driving the microscope body to approach or be far away from the objective table;

The lens body, including casing and all built-in imaging unit, fine focusing mechanism, first zoom focusing unit and the second zoom focusing unit of casing, wherein:

a shell provided with a first through hole;

The first zoom focusing unit and the second zoom focusing unit are symmetrically arranged, the optical axes are intersected and converged at the center of an object to be detected on the objective table through a first through hole of the shell, the first zoom focusing unit comprises a first rear fixed lens group, a first compensation lens group, a first zoom lens group and a first front fixed lens group which are sequentially arranged along the optical axis, the second zoom focusing unit comprises a second rear fixed lens group, a second compensation lens group, a second zoom lens group and a second front fixed lens group which are sequentially arranged along the optical axis, each rear fixed lens group, each compensation lens group, each zoom lens group and each front fixed lens group comprise at least one lens, and the front fixed lens groups are arranged close to the objective table;

The fine focusing mechanism is used for driving the corresponding compensation lens group and the corresponding zoom lens group on each zoom focusing unit to move relatively so as to realize magnification adjustment;

The imaging unit comprises two imaging inductors, wherein the imaging inductors are in one-to-one correspondence with the zoom focusing units and are used for collecting the object images to be detected obtained by the zoom focusing units;

And the naked eye 3D display terminal is electrically connected with the mirror body and is used for acquiring and displaying signals of the imaging sensors.

Preferably, the imaging unit further comprises two first reflectors, two second reflectors, a first mounting seat and two second mounting seats, the first mounting seats are connected with the shell, the first reflectors, the second reflectors and the second mounting seats are in one-to-one correspondence with the variable-magnification focusing units and are symmetrically arranged on the first mounting seats, through holes are further formed in the second mounting seats, image light rays of an object to be detected, which are obtained by the variable-magnification focusing units, are transmitted to the second reflectors by the corresponding first reflectors to form first light rays, and then the first light rays penetrate through the through holes of the second mounting seats to be collected by the corresponding imaging sensors.

Preferably, the fine focus adjustment mechanism comprises a transmission mechanism, a compensation lens group adjustment unit and a zoom lens group adjustment unit, wherein:

the compensation lens group adjusting unit is connected with the first compensation lens group and the second compensation lens group;

The zoom lens group adjusting unit is connected with the first zoom lens group and the second zoom lens group;

The transmission mechanism is used for driving the compensation lens group adjusting unit and the zoom lens group adjusting unit to move relatively, so that the distance between the corresponding compensation lens group and the corresponding zoom lens group is driven to adjust to realize magnification adjustment.

Preferably, the compensation lens group adjusting unit comprises a first shifting fork, a first guide pin, a second guide pin, a first guide shaft, a second guide shaft and a third guide shaft, and the variable-magnification lens group adjusting unit comprises a second shifting fork, a third guide pin, a fourth guide shaft, a fifth guide shaft and a sixth guide shaft, wherein:

Each guide shaft is fixed on the shell, the first guide shaft and the sixth guide shaft are vertically arranged, the second guide shaft and the third guide shaft are symmetrically arranged, the included angle of the axes is the same as that of the first zoom focusing unit and the second zoom focusing unit, the fourth guide shaft and the fifth guide shaft are symmetrically arranged, and the included angle of the axes is the same as that of the first zoom focusing unit and the second zoom focusing unit;

The first shifting fork is in sliding connection with the first guide shaft and abuts against the sixth guide shaft to carry out rotation limiting, the first compensation mirror group is in sliding connection with the second guide shaft and abuts against the fourth guide shaft to carry out rotation limiting, the second compensation mirror group is in sliding connection with the third guide shaft and abuts against the fifth guide shaft to carry out rotation limiting, the first guide nail is connected with the first compensation mirror group, the second guide nail is connected with the second compensation mirror group, and the first guide nail and the second guide nail also horizontally slide relative to the first shifting fork;

The second shifting fork is in sliding connection with the second rotating shaft and abuts against the sixth guide shaft to rotate and limit, the first variable-magnification lens group is in sliding connection with the fourth guide shaft and abuts against the second guide shaft to rotate and limit, the second variable-magnification lens group is in sliding connection with the fifth guide shaft and abuts against the third guide shaft to rotate and limit, the third guide nail is connected with the first variable-magnification lens group, the fourth guide nail is connected with the second variable-magnification lens group, and the third guide nail and the fourth guide nail also horizontally slide relative to the second shifting fork.

Preferably, the transmission mechanism comprises a first rotating shaft, two zoom handwheels, a driving gear, a driven gear, a second rotating shaft, a hyperbola cylinder, balls and a third mounting seat, wherein the first rotating shaft is connected with the shell and horizontally arranged, the two zoom handwheels are respectively positioned at two ends of the first rotating shaft, the driving gear is coaxially connected with the first rotating shaft, the driven gear is coaxially connected with the second rotating shaft and meshed with the driving gear, the third mounting seat is connected with the shell, the second rotating shaft is vertically arranged and is rotatably connected with the third mounting seat through the balls, the hyperbola cylinder is coaxially connected with the second rotating shaft, a first curve groove, a guide groove and a second curve groove which are sequentially arranged along the axis direction are formed in the hyperbola cylinder, the first curve groove and the second curve groove have different curvatures, a fifth guide pin is further arranged on the first shifting fork, a sixth guide pin is further arranged on the second shifting fork and is matched with the first curve groove or the guide groove to slide, the sixth guide pin is matched with the second curve groove to slide, the spring is sleeved on the first guide shaft, and the two ends of the spring are respectively arranged on the first guide shaft and are in a rotating mode and are respectively abutted against one side of the first shifting fork and the shell to drive the compensation mirror group to rotate, and the compensation mirror group is driven by the compensation mirror group to rotate, and the compensation mirror group is correspondingly driven by the compensation mirror group to rotate, and the compensation mirror group to drive the compensation unit.

Preferably, the coarse focus adjustment mechanism is a linear motion mechanism.

Preferably, the microscope stand further comprises a plurality of clamping units, wherein the objective table and the clamping units are mounted on the microscope base, and the clamping units are used for fixing the object to be measured on the objective table.

Preferably, an included angle between the optical axis of the first variable-magnification focusing unit and the optical axis of the second variable-magnification focusing unit is 10 ° to 15 °.

Preferably, the naked eye 3D continuous zoom stereoscopic microscope further comprises an illumination unit, the illumination unit comprises a transmission light source, a reflection light source, an oblique light source, a light source switch and a plurality of light regulating wheels, the transmission light source is arranged in a lens seat, the reflection light source is detachably connected with a lens body, the oblique light source is rotatably connected with a microscope stand or the lens body to realize angle regulation, each light source is used for illuminating an object to be measured on an object stage, the light source switch is electrically connected with each light source and used for realizing the opening or closing of the light source, and the light regulating wheels are in one-to-one correspondence with each light source and are used for regulating the brightness of the corresponding light source.

Preferably, the reflective light source is an annular light source, and is located above the stage and coaxially disposed with the first through hole of the housing.

Compared with the prior art, the utility model has the beneficial effects that:

1) According to the naked eye 3D continuous zoom stereoscopic microscope, by carrying the naked eye 3D display terminal, wearing of external auxiliary tools such as 3D glasses or ocular lenses is not needed, namely, complicated pupil distance adjustment operation is not needed during use, a vivid three-dimensional image of an object to be detected can be displayed on the naked eye 3D display terminal, the operation is simple, specifically, the object to be detected is placed on an objective table, a projection light source sequentially passes through a rear fixed lens group, a compensation lens group, a zoom lens group and a front fixed lens group to form zoom focusing units and is amplified and transmitted into an imaging sensor, and then the zoom focusing units are led into the naked eye 3D display terminal to process and display the vivid three-dimensional image of the object to be detected with space and depth, so that the effect of ultra-large depth and three-dimensional image of continuous zoom amplification is achieved, visual fatigue of human eye observation is facilitated, and user experience is improved;

2) The imaging of the object to be measured on the object stage can be regulated and obtained through the coarse focusing mechanism, the device has long working distance, large focal depth and large view field diameter, is convenient for comprehensively observing the object to be measured, is matched with the fine focusing mechanism to simultaneously regulate the first zoom focusing unit and the second zoom focusing unit to obtain the imaging of the object to be measured on the object stage, can realize accurate regulation and magnification amplification, has a larger magnification regulation range compared with the prior art, and is beneficial to obtaining high-quality imaging;

3) The optical path folding can be realized through the arrangement of the reflecting mirror in the imaging unit, the size of the lens body can be reduced by substituting the ocular lens, if the size of the lens body is reduced to half of the original size, the weight of the lens body can be reduced, and the adverse effect on eyes and cervical vertebrae can be prevented after the lens body is matched with the naked eye 3D display terminal to observe the work for a long time.

Drawings

FIG. 1 is a schematic structural diagram of an naked eye 3D continuous zoom stereoscopic microscope of the utility model;

FIG. 2 is a front view of the mirror of the present utility model;

FIG. 3 is a right side view of the mirror body of the present utility model;

FIG. 4 is a cross-sectional view A-A of the mirror body of the present utility model;

FIG. 5 is a B-B cross-sectional view of the mirror body of the present utility model;

FIG. 6 is a C-C cross-sectional view of the lens body of the present utility model;

FIG. 7 is a schematic view of the structure of an imaging unit of the present utility model;

FIG. 8 is a schematic diagram illustrating assembly of a fine focus adjustment mechanism and various zoom focus adjustment units according to the present utility model;

FIG. 9 is a front view of FIG. 8 in accordance with the present utility model;

FIG. 10 is a rear view of FIG. 8 in accordance with the present utility model;

FIG. 11 is a top view of FIG. 8 in accordance with the present utility model;

FIG. 12 is a schematic diagram illustrating assembly of a compensation lens assembly adjusting unit according to the present utility model;

fig. 13 is an assembled schematic view of the zoom lens system adjusting unit of the present utility model.

Reference numerals illustrate: 1. a microscope stand; 2. a mirror body; 3. a lighting unit; 4. naked eye 3D display terminal; 11. a lens base; 12. a column; 13. a coarse focusing mechanism; 14. an objective table; 15. a clamping unit; 21. a housing; 22. an imaging unit; 23. a fine focusing mechanism; 24. a first zoom focusing unit; 25. a second zoom focusing unit; 26. a compensation lens group adjusting unit; 27. a zoom lens group adjusting unit; 221. an imaging sensor; 222. a first mirror; 223. a second mirror; 224. a first mount; 225. a second mounting base; 231. a first rotating shaft; 232. a zoom hand wheel; 233. a drive gear; 234. a driven gear; 235. a second rotating shaft; 236. a hyperbolic cylinder; 237. a ball; 238. a third mount; 241. a first rear fixed mirror group; 242. a first compensation lens group; 243. a first zoom lens group; 244. a first front fixed mirror group; 251. a second rear fixed mirror group; 252. a second compensation lens group; 253. a second zoom lens group; 254. a second front fixed mirror group; 261. a first fork; 262. a first guide pin; 263. a second guide pin; 264. a first guide shaft; 265. a spring; 266. a second guide shaft; 267. a third guide shaft; 271. a second fork; 272. a third guide pin; 273. a fourth guide pin; 274. a fourth guide shaft; 275. a fifth guide shaft; 276. a sixth guide shaft; 31. a reflective light source; 32. oblique light source; 33. a dimming wheel; 34. and a light source switch.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

1-13, A naked eye 3D continuous zoom stereoscopic microscope comprises a microscope stand 1, a microscope body 2 and a naked eye 3D display terminal 4, wherein:

The microscope stand 1 comprises a microscope base 11, a stand column 12, a coarse focusing mechanism 13 and an objective table 14, wherein the stand column 12 and the objective table 14 are connected with the microscope base 11, and the coarse focusing mechanism 13 is connected with the stand column 12 and is used for driving the microscope body 2 to be close to or far from the objective table 14;

The mirror body 2 includes a housing 21 and an imaging unit 22, a fine focus adjustment mechanism 23, a first variable focus unit 24, and a second variable focus unit 25 all built in the housing 21, wherein:

A housing 21 provided with a first through hole;

The first zoom focusing unit 24 and the second zoom focusing unit 25 are symmetrically arranged, the optical axes intersect and are converged at the center of an object to be measured on the objective table 14 through a first through hole of the shell 21, the first zoom focusing unit 24 comprises a first rear fixed lens group 241, a first compensating lens group 242, a first zoom lens group 243 and a first front fixed lens group 244 which are sequentially arranged along the optical axis, the second zoom focusing unit 25 comprises a second rear fixed lens group 251, a second compensating lens group 252, a second zoom lens group 253 and a second front fixed lens group 254 which are sequentially arranged along the optical axis, each rear fixed lens group, each compensating lens group, each zoom lens group and each front fixed lens group comprises at least one lens, and the front fixed lens groups are arranged close to the objective table 14;

the fine focusing mechanism 23 is used for driving the corresponding compensation lens group and the corresponding zoom lens group on each zoom focusing unit to move relatively so as to realize magnification adjustment;

The imaging unit 22 comprises two imaging sensors 221, wherein the imaging sensors 221 are in one-to-one correspondence with the zoom focusing units and are used for acquiring the object image to be detected obtained by the zoom focusing units;

The naked eye 3D display terminal 4 is electrically connected with the mirror body 2, and is used for acquiring and displaying signals of the imaging sensors 221.

Wherein, the upright post 12 is perpendicular to the lens seat 11, the objective table 14 may be disposed on the lens seat 11, or may be disposed on the upright post 12 and indirectly connected to the lens seat 11, the objective table 14 is disposed opposite to the first through hole of the housing 21, and the housing 21 may have any shape. It will be readily appreciated that the microscope stand 1 may also be of any shape configuration known in the art. The upright post 12 is fixedly provided with a coarse focusing mechanism 13 which can be adjusted to lift, and the coarse focusing mechanism 13 is used for supporting and driving the mirror body 2 to move up and down to lift and adjust, so that the mirror body 2 is close to or far away from the objective table 14.

The mirror body 2 has an imaging unit 22, a fine focus adjustment mechanism 23, a first variable focus unit 24, and a second variable focus unit 25, and is enclosed inside the housing 21 of the mirror body 2. The first zoom focusing unit 24 and the second zoom focusing unit 25 are optical systems for continuous zoom magnification, each zoom focusing unit comprises a rear fixed lens group, a compensation lens group, a zoom lens group and a front fixed lens group which are sequentially arranged along an optical axis, wherein the rear fixed lens group and the front fixed lens group are used as fixed lens groups, the compensation lens group and the zoom lens group are used as intermediate lens groups, the front fixed lens group is arranged close to the objective table 14, the rear fixed lens group is arranged close to the imaging unit 22, a certain volume viewing angle is designed according to the angle difference between the gazing direction of human eyes and the position of an object to be measured, imaging of the object to be measured has three-dimensional stereoscopic impression, magnification adjustment can be realized by adjusting through the fine focus adjusting mechanism 23, magnification change is realized by changing the distance between the intermediate lens groups of each zoom focusing unit, namely, the distance between the compensation lens group and the zoom lens group is adjusted, for example, the magnification is 0.62-5 times, and the magnification can be adjusted specifically according to practical requirements. The coarse focusing mechanism 13 can be adjusted to obtain the imaging of the object to be measured on the objective table 14, has long working distance, large focal depth and large field diameter, is convenient for adjusting and comprehensively observing the object to be measured, and is matched with the fine focusing mechanism 23 to simultaneously adjust the first zooming focusing unit 24 and the second zooming focusing unit 25 to obtain the imaging of the object to be measured on the objective table 14. It is easy to understand that each zoom focusing unit can be any zoom focusing lens in the prior art, and satisfies the function of optical magnification imaging magnification, and includes a rear fixed lens group (fixed), a compensation lens group (movable), a zoom lens group (movable) and a front fixed lens group (fixed) that are sequentially arranged along the optical axis direction, and each lens group includes at least one lens.

The imaging unit 22 is used for acquiring an object image to be detected obtained by the zoom focusing unit, and is directly connected with the naked eye 3D display terminal 4 through a cable to realize signal real-time transmission and synchronous imaging picture, or can be indirectly connected with a main board to carry out signal transmission of the imaging unit 22 and the naked eye 3D display terminal 4, and the main board can be connected with other electric devices to carry out control. The imaging sensor 221 can also convert the optical signal after processing into a digital signal, and then guide the digital signal into the associated naked eye 3D display terminal 4 to process and display a clear stereoscopic image which is synchronous and has high resolution and adjustable magnification.

The naked eye 3D display terminal 4 utilizes the characteristic that both eyes of a person have parallax, and can obtain a display system with a realistic stereoscopic image of space and depth without any auxiliary equipment, for example, the naked eye 3D display terminal can be a full angle naked eye 3D display imaging mobile terminal.

The continuous zoom stereoscopic microscope is provided with the full-angle naked eye 3D display imaging mobile terminal, external auxiliary tools such as 3D glasses or ocular lenses in the prior art are eliminated, complicated pupil distance adjustment operation is not needed, the effect of super-large depth of field and stereoscopic image of continuous zoom magnification can be obtained, visual fatigue of human eyes is relieved, and user experience is improved. When the distance between the middle lens groups is changed, the imaging sensor 221 senses the integrated optical signals in real time and transmits the integrated optical signals to the naked eye 3D display terminal 4 for processing and displaying, so that the imaging quality is high, and the observation and the operation are convenient.

In an embodiment, the imaging unit 22 further includes two first reflectors 222, two second reflectors 223, a first mounting seat 224 and two second mounting seats 225, the first mounting seats 224 are connected with the housing 21, the first reflectors 222, the second reflectors 223 and the second mounting seats 225 are all in one-to-one correspondence with the variable-magnification focusing units and symmetrically arranged on the first mounting seats 224, through holes are further formed in the second mounting seats 225, the image light of the object to be measured obtained by each variable-magnification focusing unit is conducted to the second reflectors 223 by the corresponding first reflectors 222 to form first light, and then the first light passes through the through holes of the second mounting seats 225 and is collected by the corresponding imaging sensors 221.

The arrangement of the reflecting mirror can realize folding of the light path, is favorable for replacing an eyepiece to reduce the volume of the lens body 2 (such as by half of the original size) and lighten the weight of the lens body 2, and can prevent adverse effects on eyes and cervical vertebrae after long-time observation work by cooperating with the naked eye 3D display terminal 4.

In one embodiment, the fine focus adjustment mechanism 23 comprises a transmission mechanism, a compensation lens group adjustment unit 26 and a variable magnification lens group adjustment unit 27, wherein:

A compensation lens group adjusting unit 26 connected to the first compensation lens group 242 and the second compensation lens group 252;

A variable magnification lens group adjusting unit 27 connected to the first variable magnification lens group 243 and the second variable magnification lens group 253;

The transmission mechanism is used for driving the compensation lens group adjusting unit 26 and the zoom lens group adjusting unit 27 to relatively move so as to drive the corresponding compensation lens group and the corresponding zoom lens group to adjust the distance so as to realize magnification adjustment.

The compensation lens group adjusting unit 26 is configured to drive the first compensation lens group 242 and the second compensation lens group 252 to move synchronously, the variable magnification lens group adjusting unit 27 is configured to drive the first variable magnification lens group 243 and the second variable magnification lens group 253 to move synchronously, and the compensation lens group adjusting unit 26 and the variable magnification lens group adjusting unit 27 can be designed to be symmetrical structures through driving force by a transmission mechanism.

In an embodiment, the compensation lens group adjusting unit 26 includes a first shift fork 261, a first guide pin 262, a second guide pin 263, a first guide shaft 264, a second guide shaft 266, and a third guide shaft 267, and the variable power lens group adjusting unit 27 includes a second shift fork 271, a third guide pin 272, a fourth guide pin 273, a fourth guide shaft 274, a fifth guide shaft 275, and a sixth guide shaft 276, wherein:

each guide shaft is fixed on the shell 21, the first guide shaft 264 and the sixth guide shaft 276 are vertically arranged, the second guide shaft 266 and the third guide shaft 267 are symmetrically arranged, the included angle of the axes is the same as that of the first zoom focusing unit 24 and the second zoom focusing unit 25, and the fourth guide shaft 274 and the fifth guide shaft 275 are symmetrically arranged, and the included angle of the axes is the same as that of the first zoom focusing unit 24 and the second zoom focusing unit 25;

The first shifting fork 261 is in sliding connection with the first guide shaft 264 and abuts against the sixth guide shaft 276 to carry out rotation limiting, the first compensating mirror group 242 is in sliding connection with the second guide shaft 266 and abuts against the fourth guide shaft 274 to carry out rotation limiting, the second compensating mirror group 252 is in sliding connection with the third guide shaft 267 and abuts against the fifth guide shaft 275 to carry out rotation limiting, the first guide nail 262 is connected with the first compensating mirror group 242, the second guide nail 263 is connected with the second compensating mirror group 252, and the first guide nail 262 and the second guide nail 263 also horizontally slide relative to the first shifting fork 261;

The second shifting fork 271 is slidably connected with the second rotating shaft 235 and abuts against the sixth guide shaft 276 to perform rotation limiting, the first variable-magnification lens group 243 is slidably connected with the fourth guide shaft 274 and abuts against the second guide shaft 266 to perform rotation limiting, the second variable-magnification lens group 253 is slidably connected with the fifth guide shaft 275 and abuts against the third guide shaft 267 to perform rotation limiting, the third guide nail 272 is connected with the first variable-magnification lens group 243, the fourth guide nail 273 is connected with the second variable-magnification lens group 253, and the third guide nail 272 and the fourth guide nail 273 also horizontally slide relative to the second shifting fork 271.

In one embodiment, the transmission mechanism comprises a first rotating shaft 231, two zoom handwheels 232, a driving gear 233, a driven gear 234, a second rotating shaft 235, a hyperbola cylinder 236, balls 237 and a third mounting seat 238, wherein the first rotating shaft 231 is connected with the shell 21 and is horizontally arranged, the two zoom handwheels 232 are respectively positioned at two ends of the first rotating shaft 231, the driving gear 233 is coaxially connected with the first rotating shaft 231, the driven gear 234 is coaxially connected with the second rotating shaft 235 and is meshed with the driving gear 233, the third mounting seat 238 is connected with the shell 21, the second rotating shaft 235 is vertically arranged and is rotatably connected with the third mounting seat 238 through the balls 237, the hyperbola cylinder 236 is coaxially connected with the second rotating shaft 235, a first curve groove, a guide groove and a second curve groove which are sequentially arranged along the axial direction are formed on the hyperbola cylinder 236, the first curve groove and the second curve groove have different curvatures, a fifth guide pin is further arranged on the first shifting fork 261, a sixth guide pin is further arranged on the second shifting fork 271, the fifth guide pin slides in cooperation with the first curve groove or the guide groove, the sixth guide pin slides in cooperation with the second curve groove, the compensation lens group adjusting unit 26 further comprises a spring 265, the spring 265 is sleeved on the first guide shaft 264, two ends of the spring 265 respectively abut against one side, close to the objective table 14, of the first shifting fork 261 and the shell 21, when the variable magnification hand wheel 232 rotates, the driving gear 233 is driven to drive the hyperbola cylinder 236 to rotate, and accordingly the compensation lens group adjusting unit 26 and the variable magnification lens group adjusting unit 27 are driven to move, and distance adjustment between the corresponding compensation lens group and the variable magnification lens group is achieved.

Wherein, the two ends of the first rotation shaft 231 are respectively provided with a zoom hand wheel 232, which is convenient for the user group operation with different handhabits. Spring 265 may be a compression spring. The fine focusing mechanism 23 is provided with a left zoom hand wheel 232 and a right zoom hand wheel 232 for fine focusing, so that synchronous adjustment of the distance between the compensation lens group and the zoom lens group in each zoom focusing unit can be realized, namely synchronous adjustment of the distance between the first compensation lens group 242 and the first zoom lens group 243 in the first zoom focusing unit 24 and the distance between the second compensation lens group 252 and the second zoom lens group 253 in the second zoom focusing unit 25 can be realized. The zoom hand wheel 232 is provided with final positioning, such as a magnification scale, which corresponds to the magnification change of the object to be measured one by one, and the imaging of the object to be measured always maintains high resolution, clear and vivid stereoscopic image quality when the distance between the compensation lens group and the zoom lens group changes, i.e. the imaging of the object to be measured continuously enlarges and changes. The fine focus adjustment mechanism 23 is advantageous in increasing the magnification of each zoom focusing unit and realizing precise adjustment.

When the zoom hand wheel 232 rotates, the driving gear 233 and the driven gear 234 are driven to rotate, transverse torsion is converted into longitudinal torsion, the hyperbola cylinder 236 is driven to cooperatively rotate according to a preset transmission ratio, the hyperbola cylinder 236 is sequentially provided with a first curve groove, a guide groove and a second curve groove along the axis direction (namely the vertical direction), the first curve groove and the second curve groove have different curvature directions and extend along the up-down direction, the guide groove is an annular groove, a fifth guide nail is further arranged on the first shifting fork 261, a sixth guide nail is further arranged on the second shifting fork 271, the fifth guide nail slides in cooperation with the first curve groove or the guide groove, and the sixth guide nail slides in cooperation with the second curve groove. Through setting up upper and lower two-layer curved slot on hyperbola section of thick bamboo 236 to be equipped with the movable guide nail of embedding in the curved slot corresponds, still symmetry is equipped with two first bayonet sockets on the first shift fork 261, and first guide nail 262 and second guide nail 263 and first bayonet socket one-to-one horizontal sliding connection still are equipped with two first bayonet sockets on the second shift fork 271 symmetry, and third guide nail 272 and fourth guide nail 273 and second bayonet socket one-to-one horizontal sliding connection, and each guide nail slides at corresponding bayonet socket, thereby drives compensation lens group adjusting unit 26 and the motion of change lens group adjusting unit 27, realizes the distance adjustment between compensation lens group and the change lens group that corresponds. The compensation lens group adjusting unit 26 is connected to the first compensation lens group 242 and the second compensation lens group 252, and the variable magnification lens group adjusting unit 27 is connected to the first variable magnification lens group 243 and the second variable magnification lens group 253. The method can realize accurate adjustment of the relative distance positions of the corresponding compensation lens group and the corresponding zoom lens group in the middle lens group under different magnifications, can realize continuous zoom and amplification functions on the first zoom and second zoom focusing units 24 and 25 through the motion tracks (the first curved groove, the guide groove and the second curved groove) arranged by the hyperbola 236, and can also finely adjust the motion tracks according to actual requirements so as to flexibly adjust the relative distance positions of the corresponding compensation lens group and the corresponding zoom lens group and realize different magnification intervals.

When the zoom hand wheel 232 is positioned at the initial position, that is, when the fine focus adjustment mechanism 23 is at the minimum magnification, and the zoom hand wheel 232 is rotated to rotate the hyperbola 236, the guide nails in the upper layer curve groove (that is, the first curve groove) are positioned in the guide groove and do not move up and down, that is, the fifth guide nail does not drive the first shifting fork 261 to move up and down, the first compensation mirror group 242 and the second compensation mirror group 252 connected with the compensation mirror group adjusting unit 26 do not move up and down, and the guide nails in the lower layer curve groove (that is, the second curve groove) move up along the second curve groove at the initial position, that is, the second shifting fork 271 is driven by the sixth guide nail, and the guide nails in the first zoom mirror group 243 and the second zoom mirror group 253 connected with the zoom mirror group adjusting unit 27 move up and down, so that the guide nails in the upper layer curve groove and the lower layer curve groove move in different rules.

When the first zoom lens group 243 and the second zoom lens group 253 move upwards by a preset travel distance, the fifth guide pin enters the first curve groove from the guide groove, meanwhile, the spring 265 provides upward elastic force, and the guide pin in the first curve groove starts to drive the first shifting fork 261 to move upwards, so that the connected first compensation lens group 242 and second compensation lens group 252 start to move slowly upwards.

In one embodiment, coarse focus mechanism 13 is a linear motion mechanism. The linear motion mechanism can be any structure for realizing linear motion in the prior art, such as a linear motion module, a ball screw mechanism, a gear rack mechanism and the like.

In one embodiment, the microscope stand 1 further includes a plurality of holding units 15, where the stage 14 and the holding units 15 are mounted on the lens base 11, and the holding units 15 are used to fix the object to be measured on the stage 14. The object to be detected is fixed through the clamping unit 15, so that accurate positioning is facilitated, and the clamping unit 15 can be an elastic sheet and the like.

In one embodiment, the angle between the optical axis of the first variable magnification focusing unit 24 and the optical axis of the second variable magnification focusing unit 25 is 10 ° to 15 °. Is suitable for different people, and is preferably 11.5 degrees.

In an embodiment, the naked eye 3D continuous zoom stereoscopic microscope further includes an illumination unit 3, the illumination unit 3 includes a transmission light source, a reflection light source 31, an oblique light source 32, a light source switch 34 and a plurality of light adjustment wheels 33, the transmission light source is disposed in the lens base 11, the reflection light source 31 is detachably connected with the lens body 2, the oblique light source 32 is rotatably connected with the microscope stand 1 or the lens body 2 to realize angle adjustment, each light source is used for illuminating an object to be measured on the objective table 14, the light source switch 34 is electrically connected with each light source and is used for realizing on or off of the light source, and the light adjustment wheels 33 are in one-to-one correspondence with each light source and are used for adjusting the brightness of the corresponding light source.

The naked eye 3D continuous variable magnification stereoscopic microscope is further provided with different types of light sources, such as a transmission light source, a reflection light source 31 and an oblique light source 32. Each light source can perform brightness adjustment and can cover the object to be measured on the objective table 14 to provide shadowless illumination for the object to be measured. The transmission light source is arranged in the lens seat 11 and is positioned right below the objective table 14. The reflecting light source 31 is detachably connected with the mirror body 2, for example, a plurality of tightening screws are arranged on the reflecting light source 31, and the mirror body 2 can be assembled and disassembled on the shell 21 according to the requirement of a user. The oblique light source 32 can be mounted on the microscope stand 1, and can be adjusted at any angle according to the observation requirement of a user, so that the plasticity is strong. When in use, at least one of the light sources in the illumination unit 3 is selected.

In one embodiment, the reflective light source 31 is an annular light source, and is disposed above the stage 14 and coaxially with the first through hole of the housing 21. The reflective light source 31 is an annular light source, which is beneficial to providing uniform light, for example, the reflective light source 31 is connected below the housing 21 and is coaxial with the first through hole.

Example 1:

When the object to be measured on the objective table 14 is a non-transparent body, after the naked eye 3D continuous zoom stereoscopic microscope is powered on, the illumination unit 3 preferably uses the reflective light source 31 and the oblique light source 32 to provide observation illumination, and the light intensity of the light source is adjusted by adjusting the corresponding dimming wheel 33 according to the observation requirement, or only one of the reflective light source 31 and the oblique light source 32 is selected to be turned on or off, and the other light source is used for supplementing, so that the energy consumption is reduced.

Working principle:

The power is turned on, the light source switch 34 of the lighting unit 3 is turned on, the rough focusing mechanism 13 is adjusted to enable the mirror body 2 to rise to a safe height, an object to be measured is placed on the objective table 14 conveniently and fixed through the clamping unit 15, the rough focusing mechanism 13 is adjusted to enable the mirror body 2 to descend after the object to be measured is placed, the ultra-long working distance is achieved, and the object to be measured with the height of 110mm can be placed at most.

The image signal transmitted into the naked eye 3D display terminal 4 at the initial position of the coarse focusing mechanism 13 is blurred, the coarse focusing mechanism 13 can be adjusted to make the image clear, and at the moment, the image picture is transmitted into the naked eye 3D display terminal 4 according to real-time change of the adjustment of the coarse focusing mechanism 13.

After the naked eye 3D display terminal 4 displays a clear image, the fine focusing mechanism 23 is adjusted, transmission is transmitted to the hyperbola cylinder 236 under the adjustment of the zoom hand wheel 232, and the guide nails move in the corresponding curve grooves according to a certain change rule, so that the compensation lens group adjusting unit 26 and the zoom lens group adjusting unit 27 are driven to move up and down, and the distance adjustment between the corresponding compensation lens group and the corresponding zoom lens group is realized.

When focusing is carried out, imaging change of an object to be measured senses an integrated optical signal on the imaging sensor 221 in real time, the imaging sensor 221 converts the optical signal into a digital signal after processing, and then the digital signal is led into an associated naked eye 3D display terminal 4 to process and display a synchronous clear stereoscopic image with high resolution and adjustable magnification.

Under the function of sensing and integrating optical signal memory by the imaging sensor 221, even if the zoom hand wheel 232 is rotated to different magnifications, the naked eye 3D display terminal 4 can display continuously-changed vivid stereoscopic images of objects to be measured which are always clear and have space and depth.

Example 2:

When the object to be measured on the objective table 14 is a light-transmitting body, after the naked eye 3D continuous zoom stereoscopic microscope is powered on, the illumination unit 3 preferably selects a transmission light source, and the light intensity of the light source is adjusted by adjusting the corresponding dimming wheel 33 according to the observation requirement. The transmission light source can adjust brightness and cover the object to be measured on the objective table 14, and provides shadowless illumination for the object to be measured. Other operations are the same as those of embodiment 1, and will not be described in detail here.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above-described embodiments represent only the more specific and detailed embodiments of the present application, but are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. The utility model provides a bore hole 3D continuous variable magnification stereomicroscope which characterized in that: the naked eye 3D continuous zoom stereoscopic microscope comprises a microscope frame (1), a microscope body (2) and a naked eye 3D display terminal (4), wherein:

The microscope stand (1) comprises a microscope base (11), an upright post (12), a coarse focusing mechanism (13) and an objective table (14), wherein the upright post (12) and the objective table (14) are connected with the microscope base (11), and the coarse focusing mechanism Jiao Jigou (13) is connected with the upright post (12) and is used for driving the microscope body (2) to be close to or far away from the objective table (14);

The lens body (2) comprises a shell (21) and imaging units (22), fine focusing mechanisms (23), a first zooming focusing unit (24) and a second zooming focusing unit (25) which are all arranged in the shell (21), wherein:

The shell (21) is provided with a first through hole;

The first zoom focusing unit (24) and the second zoom focusing unit (25) are symmetrically arranged, optical axes are intersected and converged at the center of an object to be detected on the objective table (14) through a first through hole of the shell (21), the first zoom focusing unit (24) comprises a first rear fixed lens group (241), a first compensation lens group (242), a first zoom lens group (243) and a first front fixed lens group (244) which are sequentially arranged along the optical axes, the second zoom focusing unit (25) comprises a second rear fixed lens group (251), a second compensation lens group (252), a second zoom lens group (253) and a second front fixed lens group (254) which are sequentially arranged along the optical axes, each rear fixed lens group, each compensation lens group, each zoom lens group and each front fixed lens group comprises at least one lens, and the front fixed lens groups are arranged close to the objective table (14);

the fine adjustment Jiao Jigou (23) is used for driving the compensation lens group and the zoom lens group which are corresponding to each zoom focusing unit to move relatively so as to realize magnification adjustment;

The imaging unit (22) comprises two imaging inductors (221), wherein the imaging inductors (221) are in one-to-one correspondence with the zoom focusing units and are used for collecting images of objects to be detected, which are obtained by the corresponding zoom focusing units;

and the naked eye 3D display terminal (4) is electrically connected with the mirror body (2) and is used for acquiring and displaying signals of the imaging sensors (221).

2. The naked eye 3D continuous variable magnification stereoscopic microscope according to claim 1, wherein: the imaging unit (22) further comprises two first reflecting mirrors (222), two second reflecting mirrors (223), a first mounting seat (224) and two second mounting seats (225), the first mounting seats (224) are connected with the shell (21), the first reflecting mirrors (222), the second reflecting mirrors (223) and the second mounting seats (225) are respectively and symmetrically arranged on the first mounting seats (224) in one-to-one correspondence with the zooming focusing units, through holes are further formed in the second mounting seats (225), image light of an object to be detected, which is obtained by each zooming focusing unit, is conducted to the second reflecting mirrors (223) by corresponding to form first light, and then the first light passes through the through holes of the second mounting seats (225) to be collected by corresponding imaging sensors (221).

3. The naked eye 3D continuous variable magnification stereoscopic microscope according to claim 1, wherein: the fine adjustment Jiao Jigou (23) comprises a transmission mechanism, a compensation lens group adjusting unit (26) and a variable-magnification lens group adjusting unit (27), wherein:

The compensation lens group adjusting unit (26) is connected with the first compensation lens group (242) and the second compensation lens group (252);

the variable-magnification lens group adjusting unit (27) is connected with the first variable-magnification lens group (243) and the second variable-magnification lens group (253);

The transmission mechanism is used for driving the compensation lens group adjusting unit (26) and the zoom lens group adjusting unit (27) to move relatively, so that the distance between the corresponding compensation lens group and the corresponding zoom lens group is driven to adjust to realize magnification adjustment.

4. A naked eye 3D continuous variable magnification stereoscopic microscope according to claim 3, wherein: the compensation lens group adjusting unit (26) comprises a first shifting fork (261), a first guide pin (262), a second guide pin (263), a first guide shaft (264), a second guide shaft (266) and a third guide shaft (267), and the variable magnification lens group adjusting unit (27) comprises a second shifting fork (271), a third guide pin (272), a fourth guide pin (273), a fourth guide shaft (274), a fifth guide shaft (275) and a sixth guide shaft (276), wherein:

Each guide shaft is fixed on the shell (21), the first guide shaft (264) and the sixth guide shaft (276) are vertically arranged, the second guide shaft (266) and the third guide shaft (267) are symmetrically arranged, the included angle of the axes is the same as that of the first zoom focusing unit (24) and the second zoom focusing unit (25), and the fourth guide shaft (274) and the fifth guide shaft (275) are symmetrically arranged, and the included angle of the axes is the same as that of the first zoom focusing unit (24) and the second zoom focusing unit (25);

The first shifting fork (261) is in sliding connection with the first guide shaft (264) and abuts against the sixth guide shaft (276) to conduct rotation limiting, the first compensating mirror group (242) is in sliding connection with the second guide shaft (266) and abuts against the fourth guide shaft (274) to conduct rotation limiting, the second compensating mirror group (252) is in sliding connection with the third guide shaft (267) and abuts against the fifth guide shaft (275) to conduct rotation limiting, the first guide nail (262) is connected with the first compensating mirror group (242), the second guide nail (263) is connected with the second compensating mirror group (252), and the first guide nail (262) and the second guide nail (263) are horizontally slid relative to the first shifting fork (261);

The second shifting fork (271) is in sliding connection with the second rotating shaft (235) and abuts against the sixth guide shaft (276) to conduct rotation limiting, the first variable-magnification lens group (243) is in sliding connection with the fourth guide shaft (274) and abuts against the second guide shaft (266) to conduct rotation limiting, the second variable-magnification lens group (253) is in sliding connection with the fifth guide shaft (275) and abuts against the third guide shaft (267) to conduct rotation limiting, the third guide nail (272) is connected with the first variable-magnification lens group (243), the fourth guide nail (273) is connected with the second variable-magnification lens group (253), and the third guide nail (272) and the fourth guide nail (273) are horizontally slid relative to the second shifting fork (271).

5. The naked eye 3D continuous variable magnification stereoscopic microscope of claim 4, wherein: the driving mechanism comprises a first rotating shaft (231), two zoom hand wheels (232), a driving gear (233), a driven gear (234), a second rotating shaft (235), a hyperbola cylinder (236), balls (237) and a third mounting seat (238), wherein the first rotating shaft (231) is connected with a shell (21) and horizontally arranged, the two zoom hand wheels (232) are respectively positioned at two ends of the first rotating shaft (231), the driving gear (233) is coaxially connected with the first rotating shaft (231), the driven gear (234) is coaxially connected with the second rotating shaft (235) and meshed with the driving gear (233), the third mounting seat (238) is connected with the shell (21), the second rotating shaft (235) is vertically arranged and is rotatably connected with the third mounting seat (238) through the balls (237), the hyperbola cylinder (236) is coaxially connected with the second rotating shaft (235), a first guide groove, a guide groove and a second guide groove are sequentially arranged along the axial direction are formed in the hyperbola cylinder (236), the second guide groove is matched with a fifth guide groove (261), the fifth guide groove is also matched with the sixth guide groove (261), the fifth guide groove is matched with the sixth guide groove, the compensation lens group adjusting unit (26) further comprises a spring (265), the spring (265) is sleeved on the first guide shaft (264), two ends of the spring are respectively abutted against one side, close to the objective table (14), of the first shifting fork (261) and one side, close to the objective table (14), of the shell (21), the driving gear (233) is driven to drive the hyperbola cylinder (236) to rotate when the variable-magnification hand wheel (232) rotates, so that the compensation lens group adjusting unit (26) and the variable-magnification lens group adjusting unit (27) are driven to move, and accordingly distance adjustment between the compensation lens group and the variable-magnification lens group is achieved.

6. The naked eye 3D continuous variable magnification stereoscopic microscope according to claim 1, wherein: the coarse adjustment Jiao Jigou (13) is a linear motion mechanism.

7. The naked eye 3D continuous variable magnification stereoscopic microscope according to claim 1, wherein: the microscope stand (1) further comprises a plurality of clamping units (15), the objective table (14) and the clamping units (15) are both installed on the microscope base (11), and the clamping units (15) are used for fixing an object to be measured on the objective table (14).

8. The naked eye 3D continuous variable magnification stereoscopic microscope according to claim 1, wherein: an included angle between the optical axis of the first zooming focusing unit (24) and the optical axis of the second zooming focusing unit (25) is 10-15 degrees.

9. The naked eye 3D continuous variable magnification stereoscopic microscope according to claim 1, wherein: the naked eye 3D continuous zoom stereoscopic microscope further comprises an illumination unit (3), the illumination unit (3) comprises a transmission light source, a reflection light source (31), an oblique light source (32), a light source switch (34) and a plurality of dimming wheels (33), the transmission light source is arranged in the mirror base (11), the reflection light source (31) is detachably connected with the mirror body (2), the oblique light source (32) is rotatably connected with the microscope frame (1) or the mirror body (2) to realize angle adjustment, each light source is used for illuminating an object to be measured on the objective table (14), the light source switch (34) is electrically connected with each light source and used for realizing the on or off of the light source, and the dimming wheels (33) are in one-to-one correspondence with each light source and are used for adjusting the brightness of the corresponding light source.

10. The naked eye 3D continuous variable magnification stereoscopic microscope of claim 9, wherein: the reflecting light source (31) is an annular light source, is positioned above the objective table (14) and is coaxially arranged with the first through hole of the shell (21).