CN210605176U

CN210605176U - Automatic focusing microscope

Info

Publication number: CN210605176U
Application number: CN201921997969.5U
Authority: CN
Inventors: 伍开军; 夏彪; 方亦可
Original assignee: Chengdu Corder Optics & Electronics Co ltd
Current assignee: Chengdu Corder Optics & Electronics Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-05-22
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses an automatic focusing microscope, which comprises an objective lens module, a zoom module, a beam splitter prism, an eyepiece imaging lens and an eyepiece; the objective lens module, the zoom module, the beam splitter prism, the eyepiece imaging lens and the eyepiece are coaxial and are sequentially placed in a light path, and an object plane is arranged on the outer side of the objective lens module; a CCD imaging lens and a CCD element are sequentially arranged on two sides of the beam splitter prism, and the CCD element is connected with an image recognition and control system; the objective lens module comprises an objective lens and a control motor; the objective lens module is shared by the left and right light paths of the microscope; the image recognition and control system is electrically connected with the control motor. The utility model discloses do not need artificial operation, full automation is focused, has reduced the time of focusing.

Description

Automatic focusing microscope

Technical Field

The utility model relates to a microscope technical field, in particular to auto focus microscope.

Background

At present, the focusing mode of the microscope still stays in the manual moving mode to adjust the distance between the objective lens of the microscope and the observation surface, the human eyes observe whether the focusing is clear through the eyepiece of the microscope, and the position of the clearest image surface is found through repeated adjustment. Because all optical imaging systems have certain depth of field and subjective judgment of each person is different, in order to enable the eyes to see the clearest image, an operator can repeatedly move an objective lens of the microscope back and forth to enable the focal point of the objective lens to be completely located on the position of an object plane, and the operation is continuously repeated, so that the focusing time of the operator is prolonged.

Disclosure of Invention

The utility model aims to provide a: the automatic focusing microscope is provided, manual operation is not needed, full automatic focusing is realized, and the focusing time is reduced.

The utility model adopts the technical scheme as follows:

the automatic focusing microscope comprises an objective lens module, a zoom module, a beam splitter prism, an ocular imaging lens and an ocular; the objective lens module, the zoom module, the beam splitter prism, the eyepiece imaging lens and the eyepiece are coaxial and are sequentially placed in a light path, and an object plane is arranged on the outer side of the objective lens module; and CCD imaging lenses and CCD elements are sequentially arranged on two sides of the beam splitter prism, and the CCD elements are connected with an image recognition and control system.

Further, the objective lens module includes an objective lens and a control motor.

Furthermore, the objective module is shared by the left and right optical paths of the microscope.

Further, the image recognition and control system is electrically connected with the control motor.

The utility model discloses a working process does: the left and right light paths of the utility model share one objective lens module, which comprises a larger objective lens and a control motor; the object plane is the plane to be observed; the zooming module is used for magnifying or reducing the image of the viewed object; the beam splitter prism is used for dividing the light rays emitted from the zoom module into two groups, one group is transmitted along the direction of the ocular lens, and the other group is transmitted along the direction of the CCD; the eyepiece imaging lens and the CCD imaging lens are used for changing parallel light rays emitted from the beam splitter prism into convergent light rays; the eyepiece is used for converting emergent rays entering the eyepiece into parallel rays; the image recognition and control system is used for recognizing whether an image formed on the CCD element is clear or not and controlling the objective lens to perform focusing action; by utilizing the CCD imaging image recognition and control system, when the object surface is in a certain range of the focus of the large objective lens, the image recognition and control system automatically controls the control motor on the objective lens module, namely the electric motor drives the objective lens to carry out short-distance up-and-down fine adjustment, the image recognition system can automatically judge whether the image formed on the CCD is clear, and when the images formed on the CCDs on the left side and the right side are clear, the control motor stops working.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the automatic focusing microscope does not need manual operation, fully automatically focuses, and reduces focusing time.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the operation of the present invention;

in the figure, 1-object plane, 2-objective module, 3-zoom module, 4-beam splitter prism, 5-eyepiece imaging lens, 6-eyepiece, 7-CCD imaging lens, 8-CCD element and 9-image recognition and control system.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1.

Examples

As shown in fig. 1, the automatic focusing microscope includes an objective lens module 2, a zoom module 3, a beam splitter prism 4, an eyepiece 6, an imaging lens 5 and an eyepiece 6; the objective lens module 2, the zoom module 3, the beam splitter prism 4, the ocular 6 imaging lens 5 and the ocular 6 are coaxial and are sequentially placed in a light path, and the outer side of the objective lens module 2 is an object plane 1; and a CCD imaging lens 7 and a CCD element 8 are sequentially arranged on two sides of the beam splitter prism 4, and the CCD element 8 is connected with an image recognition and control system 9.

The utility model discloses a working process does: in the utility model, the left and right light paths share one objective lens module 2, and the objective lens module 2 comprises a larger objective lens and a control motor thereof; the object plane 1 is the plane to be observed; the zooming module 3 is used for magnifying or reducing the image of the viewed object; the beam splitter prism 4 is used for dividing the light emitted from the zoom module 3 into two groups, one group is transmitted along the direction of the ocular lens 6, and the other group is transmitted along the direction of the CCD; the eyepiece 6 imaging lens 5 and the CCD imaging lens 7 both have the function of converting parallel rays emitted from the beam splitter prism 4 into convergent rays; the eyepiece 6 is used for converting emergent rays which enter the eyepiece 6 into parallel rays; the image recognition and control system 9 is used for recognizing whether the image formed on the CCD element 8 is clear or not and controlling the objective lens to focus; by utilizing the CCD imaging image recognition and control system 9, when the object plane 1 is positioned in a certain range of the focus of the large objective lens, the image recognition and control system 9 automatically controls the control motor on the objective lens module 2, namely, the electric motor drives the objective lens to carry out short-distance up-and-down fine adjustment, the image recognition system can automatically judge whether the image formed on the CCD is clear, and when the images formed on the CCDs on the left side and the right side are clear, the control motor stops working.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. An autofocus microscope, characterized by: the zoom lens comprises an objective lens module (2), a zoom module (3), a beam splitter prism (4), an eyepiece imaging lens (5) and an eyepiece (6); the objective lens module (2), the zoom module (3), the beam splitter prism (4), the eyepiece imaging lens (5) and the eyepiece (6) are coaxial and are sequentially placed in a light path, and the outer side of the objective lens module (2) is an object plane (1); and CCD imaging lenses (7) and CCD elements (8) are sequentially arranged on two sides of the beam splitter prism (4), and the CCD elements (8) are connected with an image recognition and control system (9).

2. The autofocus microscope of claim 1, wherein: the objective lens module (2) comprises an objective lens and a control motor.

3. The autofocus microscope of claim 1, wherein: the objective lens module (2) is shared by the left and right light paths of the microscope.

4. The autofocus microscope of claim 2, wherein: the image recognition and control system (9) is electrically connected with the control motor.