CN216526472U

CN216526472U - Intelligent objective lens switching calibration system

Info

Publication number: CN216526472U
Application number: CN202122998128.XU
Authority: CN
Inventors: 伍祥辰; 刘路; 周键; 范杰
Original assignee: Suzhou Ruiqian Technology Co ltd
Current assignee: Suzhou Ruiqian Technology Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-05-13
Anticipated expiration: 2031-12-02

Abstract

The utility model provides an intelligent objective switching and calibrating system which comprises a base, an objective bracket, a motor, two sensors and a transmission device, wherein the motors are fixed on one side of the base, the two sensors are symmetrically arranged on two sides of the base, a sensor probe and an objective are arranged on the objective bracket, and the motor drives the objective bracket through the transmission device to detect the position of the sensor and realize switching and calibrating of the objective. According to the utility model, a high-precision lead screw is adopted for transmission to realize switching action, the action of the motor can be automatically controlled to compensate in combination with machine vision contrast, accurate and automatic switching is realized, the camera can collect image contrast to automatically calibrate through different objective lenses when the camera is started, and the camera is convenient and intelligent.

Description

Intelligent objective lens switching calibration system

Technical Field

The utility model belongs to the technical field of objective lens switching, and relates to an intelligent objective lens switching calibration system.

Background

The objective lens is a lens group formed by combining a plurality of lenses. The combined use aims to overcome the imaging defects of a single lens and improve the optical quality of the objective lens. The current objective switching adopts two modes:

1. the mechanical objective wheel disc is heavy in weight, needs a manual rotating wheel disc, and cannot be automatically operated.

2. And an electric lead screw is adopted for switching, so that the switching precision is poor, and the switching reliability is low.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems, an object of the present invention is to provide an intelligent objective lens switching calibration system.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides an intelligence objective switches calbiration system, includes base, objective support, motor, sensor, transmission, the motor is fixed in one side of base, the figure of sensor be two and the symmetry set up in the both sides of base, install sensor on the objective support and visit piece and objective, the motor passes through transmission and drives the switching calibration of objective support in order to detect the position of sensor and realization objective.

Preferably, the transmission device comprises a lead screw, and the motor is connected with the objective lens bracket through the lead screw and a nut seat to convert the rotary motion of the motor into the linear motion of the objective lens bracket.

Preferably, a 10 × objective lens and a 20 × objective lens or a 20 × objective lens and a 40 × objective lens are fixed on the objective lens holder.

Preferably, the sensor probe detects that the sensor is at a zero position.

Preferably, the position difference of the cross image on the standard slide tool under different objective lenses at the center of the visual field is taken as the standard position difference.

Preferably, a camera support is further mounted on the base, and a camera is mounted on the camera support.

Preferably, the system further comprises a machine vision processor, wherein the machine vision processor is used for calculating position errors through comparison of the photographed images under different objective lenses so as to control the motor to perform position compensation.

The beneficial effect of this application lies in:

adopt high accuracy lead screw transmission to realize switching action, can combine machine vision contrast to automatically control the motor action simultaneously and compensate, realize accurate automatic switching, the start can be through the automatic calibration of different camera acquisition image contrast under the objective, convenient intelligence.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an intelligent objective lens switching calibration system according to the present invention.

Fig. 2 is a schematic view showing a motor base mounting structure of the present invention.

Fig. 3 shows a state where ten digital images on the standard slide tool under the 10 × objective lens coincide with the interface center icon.

Fig. 4 shows a state where ten digital images on the standard slide tool under the 20 × objective lens have not yet been overlapped with the interface center icon.

In the figure: 1. a base; 2. a camera support; 3. a camera; 4. an objective lens holder; 5. objective, 51, 10 × objective, 52, 20 × objective; 6. a motor; 7. a sensor; 8. a nut seat; 9. a lead screw; 10. an interface center icon; 11. performing ten-dimensional image processing on a standard slide tool; 12. an L-shaped fixing member; 13. the sensor probe sheet.

Detailed Description

In order to more clearly illustrate the present invention, the present invention will be described in further detail below with reference to examples and the accompanying drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the utility model.

In addition, if no special description is given, all the components used in the following embodiments are existing components, and the corresponding connection manner thereof can also be implemented by conventional technical means, and will not be described in detail in this application.

Examples

As shown in fig. 1, the intelligent objective lens switching calibration system provided by this embodiment includes a base 1, an objective lens support 4, a motor 6, sensors 7, and a transmission device, a camera support 2 is further installed on the base 1, a camera 3 is installed on the camera support 2, the motor 6 is fixed on one side of the base 1, the number of the sensors 7 is two, and the sensors 7 are symmetrically disposed on both sides of the base 1, as shown in fig. 2, the motor 6 and one of the sensors 7 are fixed on the left side of the base 1 in the figure in tandem, the other sensor is located on the right side of the base 1, the objective lens support 4 is connected to the base 1 through an L-shaped fixing member 13, the L-shaped fixing member 13 includes a horizontal plate and a vertical plate, sensor probes 13 are symmetrically mounted on both sides of the vertical plate, an objective lens 5 is installed on the objective lens support 4, the objective lens 5 includes a 10 × objective lens 51 and a 20 × objective lens 52 (also can be a 20 × objective lens and a 40 × objective lens), the transmission device comprises a lead screw 9, a motor 6 is connected with a nut seat 8 through the lead screw 9, the nut seat 8 is fixedly connected with the objective lens support 4 through a horizontal plate of an L-shaped fixing piece 13, the rotary motion of the motor 6 is converted into the linear motion of the objective lens support 4, then a sensor detecting piece 13 is driven to detect a sensor 7, and meanwhile, the objective lens can be switched and calibrated. The system can also comprise a machine vision processor, the position error is calculated by comparing the photographed images under different objective lenses, and the motor can be controlled to carry out position compensation, wherein the position of the sensor detected by the sensor detecting piece is a zero position, and the position difference of the cross image on the standard slide tool under different objective lenses when the center of the visual field is a standard position difference. The structure, connection and data processing process of the machine vision processor can be realized by conventional technical means, and the application is not particularly limited.

The principle of the utility model is as follows:

the motor 6 is fixed on the base 1, and the sensor 7 is fixed on the base 1. The electrified motor 6 rotates to drive the screw rod 9 to rotate, the nut on the screw rod moves to drive the sensor detecting sheet 13 on the objective lens bracket 4 to detect that the sensor 7 is at a zero position. Taking a standard slide tool, putting the standard slide tool into a glass carrying table, taking a picture by using a camera 3, enabling a decadic image 11 on the standard slide tool to coincide with an interface center icon 10 under a 10 multiplied objective 51 by moving an objective support 4, as shown in figure 3, at the moment, locating at the center of a visual field, rotating a motor 6 to drive the objective support 4 to move to the visual field of a 20 multiplied objective, as shown in figure 4, enabling the decadic image 11 on the standard slide tool not to coincide with the interface center icon 10, finely adjusting to coincide, and recording the current position difference under different objectives as a standard position difference. And subsequently, comparing the images acquired under the 10 multiplied objective lens with the images acquired under the 20 multiplied objective lens, calculating the number of offset pixels, and automatically controlling a motor to perform position compensation according to the standard position difference, so that automatic calibration during starting can be realized.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all the embodiments of the present invention are not exhaustive, and all the obvious variations or modifications which are introduced in the technical scheme of the present invention are within the scope of the present invention.

Claims

1. The utility model provides an intelligence objective switches calbiration system, its characterized in that, includes base, objective support, motor, sensor, transmission, the motor is fixed in one side of base, the figure of sensor be two and the symmetry set up in the both sides of base, the objective support passes through L type mounting and pedestal connection, and L type mounting includes horizontal plate and riser, and the bilateral symmetry of riser is installed the sensor and is visited the piece, install objective on the objective support, the motor passes through transmission and drives L type mounting in order to detect the position of sensor and realize the switching calibration of objective.

2. The system of claim 1, wherein the actuator comprises a lead screw, the motor is connected to a nut holder through the lead screw, and the nut holder is fixedly connected to the objective holder through a horizontal plate of the L-shaped fixture, so as to convert the rotational motion of the motor into the linear motion of the objective holder.

3. An intelligent objective lens switching calibration system as claimed in claim 1, wherein the objective lens holder is fixed with 10 x objective lens and 20 x objective lens or 20 x objective lens and 40 x objective lens.

4. The system of claim 1, wherein the sensor probe detects a zero position of the sensor.

5. The system according to claim 4, wherein the standard position difference is the position difference of the cross image on the standard slide tool under different objectives in the center of the field of view.

6. The system of claim 1, wherein the base further comprises a camera support, and the camera support comprises a camera.

7. An intelligent objective lens switching calibration system as claimed in any one of claims 1 to 6, further comprising a machine vision processor for calculating position errors by comparing the photographed images under different objective lenses to control the motor to perform position compensation.