CN213814120U - Optical lens switching device of microscope - Google Patents
Optical lens switching device of microscope Download PDFInfo
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- CN213814120U CN213814120U CN202021963482.8U CN202021963482U CN213814120U CN 213814120 U CN213814120 U CN 213814120U CN 202021963482 U CN202021963482 U CN 202021963482U CN 213814120 U CN213814120 U CN 213814120U
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Abstract
The utility model discloses a microscope optical lens auto-change over device, include: the device comprises at least one objective lens with different magnification factors, a turntable for fixing each objective lens, an objective table and a controller for controlling the turntable to rotate so as to switch the objective lens above an object to be measured; the turntable is arranged above the objective table and is separated from the objective table by a preset distance; each objective lens is fixed on one side of the turntable, which is close to the objective table; the controller is in communication with the turntable. Can switch the objective that the magnification is different above the object to be measured through the revolving stage to through the automatic rotation of controller control revolving stage, realize the automatic switch-over of objective, reach the best magnification effect of object to be measured.
Description
Technical Field
The utility model relates to a microscope technical field specifically, relates to a microscope optical lens auto-change over device.
Background
A microscope is an optical instrument consisting of a lens or a combination of several lenses. An apparatus for magnifying a tiny object to be seen by the unaided human eye. However, since the observation range of the objective lens with a certain magnification is limited, the microscope is generally provided with four sets of objective lenses with different magnifications so as to observe tiny objects with different magnitudes. In actual observation, an approximate estimation needs to be made on an observed object, and an eyepiece with a certain magnification is selected for observation. If the observation result is not in accordance with the selected objective lens, the objective lens with different magnification is required to be replaced for observation. Therefore, when different objects are measured, the objective lenses with different magnification factors need to be changed ceaselessly, the operation is troublesome and time-consuming, and the focal length adjustment is needed, so that the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art, the present disclosure provides a microscope optical lens switching device including: the device comprises at least one objective lens with different magnification factors, a turntable for fixing each objective lens, an objective table and a controller for controlling the turntable to rotate so as to switch the objective lens above an object to be measured;
the turntable is arranged above the objective table and is separated from the objective table by a preset distance;
each objective lens is fixed on one side of the rotary table close to the objective table;
the controller is in communication connection with the turntable.
Optionally, the turntable includes: the device comprises a motor, a driving unit, a transmission unit and a turntable;
the power output end of the motor is connected with the power input end of the driving unit, the power output end of the driving unit is connected with the power input end of the transmission unit, and the power output end of the transmission unit is connected with the turntable so as to drive the turntable to rotate;
each objective lens is respectively fixed on one side of the turntable, which is close to the objective table;
the motor is in communication connection with the controller.
Optionally, the number of the objective lenses is 6, and the objective lenses are respectively fixed on one side of the turntable, which is close to the objective table;
the magnification of each objective lens is 50 times, 100 times, 150 times, 200 times, 250 times and 300 times respectively.
Optionally, the microscope optical lens switching device further includes an LED fill-in light array;
the LED light supplement lamp array is arranged below the objective table.
Optionally, the microscope optical lens switching device further includes an industrial camera, and the industrial camera is connected to each objective lens respectively to collect an image of the object to be measured, which is amplified by the objective lenses.
Optionally, the industrial camera is a CMOS camera or a CCD camera.
To sum up, the utility model provides a microscope optical lens auto-change over device, this microscope optical lens auto-change over device includes: the device comprises at least one objective lens with different magnification factors, a turntable for fixing each objective lens, an objective table and a controller for controlling the turntable to rotate so as to switch the objective lens above an object to be measured; the turntable is arranged above the objective table and is separated from the objective table by a preset distance; each objective lens is fixed on one side of the turntable, which is close to the objective table; the controller is in communication with the turntable. Can switch the objective that the magnification is different above the object to be measured through the revolving stage to through the automatic rotation of controller control revolving stage, realize the automatic switch-over of objective, reach the best magnification effect of object to be measured.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a microscope optical lens switching device according to an exemplary embodiment.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Fig. 1 is a schematic structural diagram illustrating a microscope optical lens switching apparatus according to an exemplary embodiment, and referring to fig. 1, the microscope optical lens switching apparatus 100 includes: at least one objective lens 110 with different magnification, a turntable 120 for fixing each objective lens, an object stage 130 and a controller 140 for controlling the turntable to rotate to switch the objective lens above the object to be measured; the turntable 120 is disposed above the stage 130, and is spaced apart from the stage 130 by a predetermined distance; each objective lens 110 is fixed to a side of the turret 120 close to the stage 130; the controller 140 is communicatively coupled to the turret 120.
The number of the objective lenses is 6, and the objective lenses are respectively fixed on one side of the turntable, which is close to the objective table; the magnification of each objective lens is 50 times, 100 times, 150 times, 200 times, 250 times and 300 times respectively.
Illustratively, the controller 130 is generally connected to a mobile device, and after controlling the turntable 120 to rotate by a corresponding direction and angle according to a rotation command sent by the mobile device (the rotation command includes a direction and an angle for controlling the turntable 120 to rotate), the target objective lens 130 fixed on one side of the turntable 120 is switched to be above the object to be measured on the stage 130.
Optionally, the optical lens switching device of the microscope further includes an industrial camera, and the industrial camera is respectively connected with each objective lens to collect the image of the object to be measured, which is amplified by the objective lens; the industrial camera is a CMOS camera or a CCD camera.
Illustratively, a virtual coordinate system is typically provided on the stage 130, and the virtual coordinate system covers the entire surface area of the stage 130. Before the controller 140 controls the turntable 120 to rotate, the objective lens 110 with the smallest magnification (i.e., the objective lens with the magnification of 50 times) is located right above the object to be measured. At this time, when a plurality of objects to be measured are placed on the stage 130, the industrial camera acquires an image of the objects to be measured on the stage 130 magnified by the 50 × magnification objective lens and transmits the image to the controller 140. The controller 140 calculates the values of the outline of the object to be measured and the tangent frame in the 4 frames of the view frame of the object stage 130 according to the received image and the virtual coordinate system on the surface of the object stage 130, after the values are calculated and stored, the controller 140 controls the turntable 120 to rotate, the objective lens 110 with the magnification of 100 times is switched to the upper part of the object to be measured, and the process that the industrial camera acquires the image of the object to be measured amplified by the objective lens 110 with the magnification of 100 times and the controller 140 calculates the values of the outline of the object to be measured in the image and the tangent frame in the view frame of the object stage 130 is repeated. When the value of the tangent frame is the maximum value, the magnification factor corresponding to the objective lens 110 above the object to be measured is the optimal magnification factor for the object to be measured.
The imaging principle of the industrial camera in the microscope is as follows: when the observed object to be measured is placed at a position slightly outside the front focus of the objective lens, an enlarged inverted real image is formed at a position close to the front focus of the eyepiece and on the inner side of the front focus of the eyepiece, and then a virtual image of the enlarged inverted image can be seen through the eyepiece. If the position of the objective lens imaging is adjusted, the image formed by the objective lens is positioned at the outer side of the front focus of the ocular lens, the image is amplified by the ocular lens, an upright image subjected to secondary amplification can be obtained at the other side of the ocular lens, and when the light source is strong enough, the image is obtained by the photosensitive chip of the industrial camera.
By way of example, currently, there are two core imaging components of an industrial camera: one is a CCD camera using a CCD (charge coupled device) element as a core imaging element, and the other is a CMOS (complementary metal-oxide semiconductor) camera using a CMOS element as a core imaging element.
Among them, the CCD is made of a semiconductor material having high sensitivity, converts light into electric charges, converts the electric charges into digital signals by an analog-to-digital converter chip, and stores the digital signals after compression by a flash memory or a built-in hard disk card inside the camera, thereby easily transmitting data to a computer and modifying an image as needed and desired by means of processing means of the computer. The CMOS is mainly made of silicon semiconductor, so that n and p semiconductors coexist on the CMOS, and the current generated by the two complementary effects can be recorded and interpreted as an image by a processing chip.
Optionally, the turntable comprises: the device comprises a motor, a driving unit, a transmission unit and a turntable; the power output end of the motor is connected with the power input end of the driving unit, the power output end of the driving unit is connected with the power input end of the transmission unit, and the power output end of the transmission unit is connected with the turntable so as to drive the turntable to rotate; each objective lens is respectively fixed on one side of the turntable close to the objective table; the motor is in communication with the controller.
In addition, the optical lens switching device of the microscope also comprises an LED light supplement lamp array; the LED light supplement lamp array is arranged below the objective table.
To sum up, the utility model provides a microscope optical lens auto-change over device, this microscope optical lens auto-change over device includes: the device comprises at least one objective lens with different magnification factors, a turntable for fixing each objective lens, an objective table and a controller for controlling the turntable to rotate so as to switch the objective lens above an object to be measured; the turntable is arranged above the objective table and is separated from the objective table by a preset distance; each objective lens is fixed on one side of the turntable, which is close to the objective table; the controller is in communication with the turntable. Can switch the objective that the magnification is different above the object to be measured through the revolving stage to through the automatic rotation of controller control revolving stage, realize the automatic switch-over of objective, reach the best magnification effect of object to be measured.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (6)
1. A microscope optical lens switching device, characterized by comprising: the device comprises at least one objective lens with different magnification factors, a turntable for fixing each objective lens, an objective table and a controller for controlling the turntable to rotate so as to switch the objective lens above an object to be measured;
the turntable is arranged above the objective table and is separated from the objective table by a preset distance;
each objective lens is fixed on one side of the rotary table close to the objective table;
the controller is in communication connection with the rotary table;
the controller is electrically connected with the mobile equipment so as to control the rotary table to rotate according to a rotation instruction sent by the mobile equipment;
a virtual coordinate system is arranged on the objective table and covers the whole area of the surface of the objective table.
2. The microscope optical lens switching device according to claim 1, wherein the turret includes: the device comprises a motor, a driving unit, a transmission unit and a turntable;
the power output end of the motor is connected with the power input end of the driving unit, the power output end of the driving unit is connected with the power input end of the transmission unit, and the power output end of the transmission unit is connected with the turntable so as to drive the turntable to rotate;
each objective lens is respectively fixed on one side of the turntable, which is close to the objective table;
the motor is in communication connection with the controller.
3. The optical lens switching device for microscope as claimed in claim 1, wherein the number of the objective lenses is 6, and the objective lenses are respectively fixed on one side of the turntable close to the objective table;
the magnification of each objective lens is 50 times, 100 times, 150 times, 200 times, 250 times and 300 times respectively.
4. The microscope optical lens switching device according to claim 1, further comprising an array of LED fill lights;
the LED light supplement lamp array is arranged below the objective table.
5. The optical lens switching device for a microscope as claimed in claim 1, further comprising an industrial camera connected to each objective lens respectively for capturing the image of the object to be measured after being magnified by the objective lens.
6. The microscope optical lens switching device according to claim 5, wherein the industrial camera is a CMOS camera or a CCD camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963482.8U CN213814120U (en) | 2020-09-09 | 2020-09-09 | Optical lens switching device of microscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963482.8U CN213814120U (en) | 2020-09-09 | 2020-09-09 | Optical lens switching device of microscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213814120U true CN213814120U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021963482.8U Active CN213814120U (en) | 2020-09-09 | 2020-09-09 | Optical lens switching device of microscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213814120U (en) |
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2020
- 2020-09-09 CN CN202021963482.8U patent/CN213814120U/en active Active
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