CN112799223A

CN112799223A - Microscope

Info

Publication number: CN112799223A
Application number: CN202110156672.1A
Authority: CN
Inventors: 马季
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-05-14

Abstract

The invention provides a microscope, which comprises a base and a bracket arranged on the base, wherein the upper end and the lower end of the bracket are respectively provided with a lifting cylinder and an objective table, the upper end and the lower end of the lifting cylinder are respectively provided with an ocular and an objective lens, the objective lenses comprise 4 objective lenses which are arranged on a converter at equal intervals, and the 4 objective lenses comprise 185# color objective lenses and stereoscopic optical objective lenses; a lifting block is inserted below the bracket, the height of the lifting block is adjusted through a lifting hand wheel, an object stage and a light source are respectively arranged at the upper end and the lower end of the lifting block, and the light source is connected to the lifting block through a connecting rod; the microscope has the advantages that the overall structure is simple, the design is reasonable, the use is convenient, the stereoscopic optical objective is added on the basis of the original microscope, the objective table is connected to the lifting block, the height of the objective table is adjusted through the lifting hand wheel, the detachable design of the light source can be inserted below the lifting block and can also be inserted on the connecting rod slot, and the purpose that the same microscope meets two observation effects is achieved.

Description

Microscope

Technical Field

The invention relates to the technical field of microscopes, in particular to a microscope with an objective table designed with a focusing structure to meet different working distances of living beings and stereoscopic vision.

Background

The microscope is one of common experimental devices in the fields of biology, chemistry, medicine and the like, and is used for observing microstructures which cannot be seen by naked eyes, so that the slide glass is inconvenient to move during experiments; the microscope in the prior art has single structure and function and cannot meet the use requirements of people.

Disclosure of Invention

In view of this, the invention provides a microscope, and the specific technical scheme is as follows:

a microscope comprises a base and a bracket arranged on the base, wherein a lifting cylinder and an objective table are respectively arranged at the upper end and the lower end of the bracket, an eyepiece and an objective lens are respectively arranged at the upper end and the lower end of the lifting cylinder, the objective lenses comprise 4 objective lenses which are arranged on a converter at equal intervals, and the 4 objective lenses comprise 185# color objective lenses and stereoscopic optical objective lenses;

a lifting block is inserted below the bracket, the height of the lifting block is adjusted through a lifting hand wheel, an object stage and a light source are respectively arranged at the upper end and the lower end of the lifting block, and the light source is connected to the lifting block through a connecting rod;

and the inner wall of the bracket is provided with a connecting rod slot.

Furthermore, the height of the lifting cylinder is adjusted by a coarse hand wheel and a fine hand wheel,

furthermore, the connecting rod and the light source can be detachably sleeved on the lifting block.

By adopting the technical scheme, the method has the following beneficial effects:

the microscope has the advantages that the whole structure is simple, the design is reasonable, the use is convenient, the stereoscopic optical objective is added on the basis of the original microscope, the objective table is connected to the lifting block, the height of the objective table is adjusted through the lifting hand wheel, the detachable design of the light source can be inserted below the lifting block and can also be inserted on the connecting rod slot, so that the effect of meeting two observation effects of the same microscope can be achieved, and the microscope can be used for teaching and lovers.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the objective lens structure of the present invention;

FIG. 3 is a schematic view of the elevating structure of the objective table of the present invention;

in the figure: 1-a base; 2-a scaffold; 3-ocular lens; 4-a lifting cylinder; 5-a converter; 6-an objective table; 7-an objective lens; 8-a light source; 9-coarse hand wheel; 10-micro-motion hand wheel; 11-lifting hand wheel; 12-a connecting rod; 13-a lifting block; 14 connecting the rod socket;

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example 1: a microscope as shown in fig. 1-3, which includes a base 1, a support 2 disposed on the base 1, a lifting cylinder 4 and a stage 6 disposed at the upper and lower ends of the support 2, respectively, an eyepiece 3 and an objective lens 7 disposed at the upper and lower ends of the lifting cylinder 4, respectively, wherein the objective lens 7 includes 4 objects arranged equidistantly on a converter 5, and the 4 objects 7 include a 185# color objective lens 7 and a stereoscopic optical objective lens 7;

a lifting block 13 is inserted below the bracket 2, the height of the lifting block 13 is adjusted through a lifting hand wheel 11, an object stage 6 and a light source 8 are respectively arranged at the upper end and the lower end of the lifting block 13, and the light source 8 is connected to the lifting block 13 through a connecting rod 12;

the inner wall of the bracket 2 is provided with a connecting rod slot 14.

The height of the lifting cylinder 4 is adjusted by a coarse hand wheel 9 and a fine hand wheel 10,

the connecting rod 12 and the light source 8 are detachably sleeved on the lifting block 13.

The two ends of the microscope lifting cylinder 4 are respectively provided with a group of lenses, each group of lenses is equivalent to a convex lens, the convex lens close to the eyes is called an ocular lens 3, and the convex lens close to the observed object is called an objective lens 7. The light from the observed object forms an enlarged real image after passing through the objective lens 7, the ocular lens 3 acts like a common magnifier to enlarge the image once again, and the small object invisible to the eyes can be seen after two times of enlargement. For the objective lens 7, the object distance should be placed between one and two focal lengths of the objective lens 7, and the object distance should not be too large for the object to be seen. Meanwhile, the focal point of the objective lens 7 is coincident with the focal point of the eyepiece lens 3, the inverted magnified real image formed by the objective lens 7 must be positioned beyond twice the focal length of the objective lens 7, and in order to make the image fall within the focal length of the eyepiece lens 3, the focal length of the objective lens 3 must be larger than that of the objective lens 7, which is why the focal length of the microscope should be larger than that of the objective lens 7.

The invention is divided into two use cases when in specific use, and the steps when the invention is used as a biological microscope are as follows:

the biological section of thick bamboo that will observe is placed on objective table 6, is well pressed with the preforming, turns to biological low power objective 7 section of thick bamboo top, opens the light source, adjusts luminance, and rotatory coarse motion hand wheel 9 adjusts lift section of thick bamboo 4 to the below, and rotatory objective table 6 hand wheel is lift hand wheel 11 promptly and until observing the image and adjusting clear image end, and rotary converter 5 uses different multiple objective 7 respectively to observe, adjusts to the clearest image through fine setting hand wheel.

When the device is used as a stereoscopic microscope, the connecting rod 12 with the light source 8 removed is arranged on the support 2 of the upper light source 8, namely on the connecting rod slot 14, a specimen to be observed is placed on the connecting rod slot, the light source 8 is opened, the object stage 6 is adjusted by rotating the hand wheel of the object stage 6, the stereoscopic objective lens 7 is used for rotating the converter 5, and the hand wheel 9 is roughly moved by the segment lifting cylinder 4 during observation until the observation is clear.

The invention has simple integral structure, reasonable design and convenient use, adds the stereoscopic optical objective 7 on the basis of the original microscope, connects the objective table 6 to the lifting block 13, adjusts the height of the objective table 6 through the lifting hand wheel 11, and can insert the detachable design of the light source 8 below the lifting block 13 or on the connecting rod slot 14, thereby achieving the purpose that the same microscope can meet two observation effects and can be used for teaching and enthusiasts.

Having thus described the basic principles and principal features of the invention, it will be appreciated by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. A microscope comprises a base and a bracket arranged on the base, wherein the upper end and the lower end of the bracket are respectively provided with a lifting cylinder and an objective table, and the microscope is characterized in that the upper end and the lower end of the lifting cylinder are respectively provided with an eyepiece and an objective lens, the objective lenses comprise 4 objective lenses which are arranged on a converter at equal intervals, and the 4 objective lenses comprise 185# color objective lenses and stereoscopic optical objective lenses;

and the inner wall of the bracket is provided with a connecting rod slot.

2. The microscope of claim 1, wherein the height of the lift cylinder is adjusted by a coarse hand wheel and a fine hand wheel.

3. The microscope of claim 1, wherein the connecting rod and the light source are detachably sleeved on the lifting block.