CN114755815A

CN114755815A - Novel large-object-distance microscope

Info

Publication number: CN114755815A
Application number: CN202210185766.6A
Authority: CN
Inventors: 江斌
Original assignee: Nanjing Xingshuo Optical Instrument Co ltd
Current assignee: Nanjing Xingshuo Optical Instrument Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-15

Abstract

The invention discloses a novel large-object-distance microscope, which comprises a microscope arm, wherein a top table is arranged on the right side of the top of the microscope arm, a base is arranged on the right side of the bottom of the microscope arm, an eyepiece is arranged in the middle of the top table, and is fixed in the middle of the top table through a screw, a fine quasi-focus screw is arranged on the right side of the front of the top table through a screw, a coarse quasi-focus screw is arranged on the left side of the fine quasi-focus screw and is fixed in the front of the top table through a screw, an objective lens barrel is arranged in the middle of the bottom of the top table, and is fixed in the middle of the bottom of the top table through a screw, an objective table is arranged on the top of the base, and is fixed on the right side of the microscope arm through a screw, a light transmission hole is formed in the middle of the objective table, a glass slide is arranged on the top of the light transmission hole, an LED lamp is arranged on the bottom of the middle of the slide, a lamp holder is arranged on the top of the LED lamp, and is fixed on the top of the LED lamp through a screw, and an objective lens is arranged inside of the objective lens barrel; the novel microscope with the large object distance has the advantages of simple structure, large object distance range and convenience in adjustment.

Description

Novel large-object-distance microscope

Technical Field

The invention relates to the technical field of microscopes, in particular to a novel large-object-distance microscope.

Background

Before the invention, the concept of human being about the surrounding world is limited to the naked eye or what the naked eye sees is assisted by a hand-held lens, the microscope displays a new world in the visual field of human being, people see hundreds of 'new' micro animals and plants and the internal structures of various things from the human body to plant fibers for the first time, and the microscope is helpful for scientists to find new species and is helpful for doctors to treat diseases.

The microscope is an optical instrument formed by one lens or a combination of a plurality of lenses, is a mark for human beings to enter the atomic era, is mainly used for magnifying tiny objects to be seen by naked eyes of the human beings, but the existing microscope has the problems of complex structure, small object distance range and inconvenience in adjustment.

Disclosure of Invention

The invention aims to provide a novel large-object-distance microscope, which has the advantages of simple structure, large object distance range and convenience in adjustment and solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a novel microscope with large object distance comprises a microscope arm, wherein a top stage is arranged on the right side of the top of the microscope arm, a base is arranged on the right side of the bottom of the microscope arm, an eyepiece is arranged in the middle of the top stage, the eyepiece is fixed in the middle of the top stage through screws, a fine quasi-focus screw is arranged on the right side of the front of the top stage, a coarse quasi-focus screw is arranged on the left side of the fine quasi-focus screw, the coarse quasi-focus screw is fixed in front of the top stage through screws, an objective tube is arranged in the middle of the bottom of the top stage, the objective tube is fixed in the middle of the bottom of the top stage through screws, an objective table is arranged on the top of the base, the objective table is fixed on the right side of the microscope arm through screws, a light transmission hole is formed in the middle of the objective table, a glass slide is arranged on the top of the light transmission hole, an LED lamp is arranged on the bottom of the middle of the glass slide, and a lamp holder is arranged on the top of the LED lamp, the LED lamp comprises a lamp holder, an objective lens, a first lens group, a second gluing lens group, a third lens group, a fourth gluing lens group and a fifth gluing lens group, wherein the lamp holder is fixed to the top of the LED lamp through threads, the objective lens is arranged in an objective lens barrel and fixed to the inside of the objective lens barrel through internal rotation threads, the first lens group is arranged at the bottom inside the objective lens, the second gluing lens group is arranged at the top of the first lens group, the third lens group is arranged at the top of the second gluing lens group, the fourth gluing lens group is arranged at the top of the third lens group, and the fifth gluing lens group is arranged at the top of the fourth gluing lens group.

Preferably, the magnification of the objective lens is 40X, the numerical aperture of the objective lens is NA0.68, the effective working distance of the objective lens is wd4.4mm, the curvature radius of the first lens group is 8.1 ± 0.9mm and 6 ± 0.9mm, the center thickness is 2.1 ± 0.9mm, the curvature radius of the second cemented lens group is 23.5 ± 0.9mm and 8.6 ± 0.9mm, the center thickness is 5.5 ± 0.9mm, the curvature radius of the third lens group is 14.8 ± 0.9mm and 38 ± 0.9mm, the center thickness is 4.1 ± 0.9mm, the curvature radius of the fourth cemented lens group is 33.2 ± 0.9mm and 22.1 ± 0.9mm, the center thickness is 10.2 ± 0.9mm, and the curvature radius of the fifth cemented lens group is 63.5 ± 0.9mm and 12.6 ± 0.9mm, and the center thickness is 3.6 ± 0.9 mm.

Preferably, the slide is longer and wider than the light-transmitting hole.

Preferably, the coarse focusing screw and the fine focusing screw can rotate left and right.

Preferably, the surfaces of the base, the mirror arm and the top platform are all sprayed with a layer of antioxidant coating.

Preferably, the glass slide is made of transparent glass.

Compared with the prior art, the invention has the following beneficial effects:

1. this novel big object distance microscope support a platform through the mirror arm, and the convenience is supported the top platform, through a fixed eyepiece of platform, and the convenience carries out fixed mounting to the eyepiece, through carefully accurate burnt spiral adjustment objective, conveniently adjusts the object distance, through thick accurate burnt spiral adjustment objective, conveniently adjusts the object distance, lays objective through the objective lens section of thick bamboo, conveniently installs objective, lays the slide glass through the objective table, and the convenience is laid slide glass and observation sample.

2. This novel big object distance microscope passes through light trap transmission light, and the convenience is observed the observation sample, lays the observation sample through the slide glass, and the convenience is laid the observation sample, throws light on through the LED lamp, and the convenience is observed the sample, through lamp holder focus light, and the light that conveniently makes the LED lamp send focuses on, observes the sample through objective, and the convenience is observed the observation sample.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a novel large object distance microscope of the present invention;

FIG. 2 is a schematic view of a novel large object distance microscope slide according to the present invention;

FIG. 3 is a schematic view of an LED lamp of a novel large object distance microscope of the present invention;

FIG. 4 is a schematic view of an objective lens of a novel large object distance microscope of the present invention;

fig. 5 is a schematic diagram of the internal structure of the objective lens of the novel large object distance microscope of the present invention.

The figures are labeled as follows: 1. coarse quasi-focal spiral; 2. fine turning screw; 3. an objective lens barrel; 4. an object stage; 5. a glass slide; 6. a light-transmitting hole; 7. a base; 8. a scope arm; 9. a top stage; 10. an eyepiece; 11. an LED lamp; 12. a lamp cap; 13. an objective lens; 14. a first lens group; 15. a second gluing lens group; 16. a third lens group; 17. a fourth gluing lens group; 18. and a fifth glue group.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

please refer to fig. 1 and 2, a novel large object distance microscope, including a microscope arm 8, the right side of the top of the microscope arm 8 is provided with a top table 9, the right side of the bottom of the microscope arm 8 is provided with a base 7, an eyepiece 10 is arranged in the middle of the top table 9, the eyepiece 10 is fixed in the middle of the top table 9 through screws, the right side of the front of the top table 9 is provided with a fine focus screw 2, the fine focus screw 2 is fixed on the right side of the front of the top table 9 through screws, the left side of the fine focus screw 2 is provided with a coarse focus screw 1, the coarse focus screw 1 is fixed in front of the top table 9 through screws, the middle of the bottom of the top table 9 is provided with an objective lens barrel 3, the objective lens barrel 3 is fixed in the middle of the bottom of the top table 9 through screws, and the top of the base 7 is provided with an objective table 4.

It is specific, support a platform 9 through the microscope arm 8, the convenience supports a platform 9, fix eyepiece 10 through a platform 9, the convenience carries out fixed mounting to eyepiece 10, adjust objective 13 through thin accurate burnt spiral 2, the convenience is adjusted the object distance, adjust objective 13 through thick accurate burnt spiral 1, the convenience is adjusted the object distance, lay objective 13 through objective tube 3, the convenience is installed objective 13, lay slide 5 through objective table 4, the convenience is laid slide 5 and observation sample.

Example 2:

please refer to fig. 1, 3, 4, 5, a novel large object distance microscope, including an object stage 4, the object stage 4 is fixed on the right side of a lens arm 8 by screws, a light hole 6 is provided in the middle of the object stage 4, a glass slide 5 is provided on the top of the light hole 6, an LED lamp 11 is provided at the middle bottom of the glass slide 5, a lamp cap 12 is provided on the top of the LED lamp 11, the lamp cap 12 is fixed on the top of the LED lamp 11 by screws, an objective lens 13 is provided inside the objective lens barrel 3, the objective lens 13 is fixed inside the objective lens barrel 3 by internal screw threads, a first lens group 14 is provided at the inside bottom of the objective lens 13, a second cemented lens group 15 is provided on the top of the first lens group 14, a third lens group 16 is provided on the top of the second cemented lens group 15, a fourth cemented lens group 17 is provided on the top of the third lens group 16, and a fifth cemented lens group 18 is provided on the top of the fourth cemented lens group 17.

It is specific, through 6 transmission light of light trap, the convenience is observed the observation sample, lay the observation sample through slide 5, the convenience is laid the observation sample, throw light on through LED lamp 11, the convenience is observed the sample, through lamp holder 12 focus light, the light that conveniently makes LED lamp 11 send focuses on, observe the sample through objective 13, the convenience is observed the observation sample, through first battery of lens 14, second battery of lens 15, third battery of lens 16, fourth battery of lens 17 and fifth battery of lens 18 combination objective 13 group, user's operation has been made things convenient for, avoid oil stain or other pollutants on the objective lens touching sample, cause the damage of objective lens and the inaccuracy that detects.

The working principle is as follows: before the microscope with the large object distance is used, the whole device is checked to see whether the device is damaged or not, if the device is not damaged, an experimental sample is placed on a glass slide 5, meanwhile, a cover glass is covered to prevent the sample from being polluted, then, the glass slide 5 is placed at the top of a light transmitting hole 6, an LED lamp is turned on, an operator observes the sample through an eyepiece 10, when the definition needs to be adjusted, a coarse focusing screw 1 is rotated to perform large-range adjustment, then, a fine focusing screw 2 is used for performing small-range adjustment, and an objective lens 13 is slowly rotated in an object lens barrel 3 through rotating the coarse focusing screw 1 and the fine focusing screw 2, so that the object distance between the objective lens and the sample is changed, and the purpose of observing the sample is achieved.

While there have been shown and described what are at present considered to be the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claims.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel large-object-distance microscope is characterized in that: comprises a mirror arm (8), a top table (9) is arranged on the right side of the top of the mirror arm (8), a base (7) is arranged on the right side of the bottom of the mirror arm (8), an eyepiece (10) is arranged in the middle of the top table (9), the eyepiece (10) is fixed in the middle of the top table (9) through screws, a fine focusing screw (2) is arranged on the right side in front of the top table (9), the fine focusing screw (2) is fixed on the right side in front of the top table (9) through screws, a coarse focusing screw (1) is arranged on the left side of the fine focusing screw (2), the coarse focusing screw (1) is fixed in front of the top table (9) through screws, an objective tube (3) is arranged in the middle of the bottom of the top table (9), the objective tube (3) is fixed in the middle of the bottom of the top table (9) through screws, an objective table (4) is arranged on the top of the base (7), the objective table (4) is fixed on the right side of the mirror arm (8) through screws, a light hole (6) is arranged in the middle of the objective table (4), a glass slide (5) is arranged at the top of the light hole (6), an LED lamp (11) is arranged at the bottom of the middle of the glass slide (5), a lamp holder (12) is arranged at the top of the LED lamp (11), the lamp holder (12) is fixed at the top of the LED lamp (11) through threads, the objective lens (13) is arranged in the objective lens barrel (3), the objective lens (13) is fixed inside the objective lens barrel (3) through internal thread, a first lens group (14) is arranged at the bottom inside the objective lens (13), a second cemented lens group (15) is arranged at the top of the first lens group (14), a third lens group (16) is arranged at the top of the second cemented lens group (15), a fourth cemented lens group (17) is arranged at the top of the third lens group (16), a fifth gluing set (18) is arranged at the top of the fourth gluing set (17).

2. A novel large object distance microscope as claimed in claim 1 wherein: the magnification of the objective lens (13) is 40X, the numerical aperture of the objective lens (13) is NA0.68, the effective working distance of the objective lens (13) is WD4.4mm, the radius of curvature of the first lens group (14) is 8.1 + -0.9 mm and 6 + -0.9 mm, the center thickness is 2.1 + -0.9 mm, the radius of curvature of the second cemented lens group (15) is 23.5 + -0.9 mm and 8.6 + -0.9 mm, the center thickness is 5.5 + -0.9 mm, the radius of curvature of the third lens group (16) is 14.8 + -0.9 mm and 38 + -0.9 mm, the center thickness is 4.1 + -0.9 mm, the radius of curvature of the fourth cemented lens group (17) is 33.2 + -0.9 mm and 22.1 + -0.9 mm, the center thickness is 10.2 + -0.9 mm, and the radius of curvature of the fifth cemented lens group (18) is 63.5 + -0.9 mm and 12.6 + -0.9 mm, the center thickness is 3.6 + -0.9 mm.

3. A novel large object distance microscope as claimed in claim 1 wherein: the length and the width of the glass slide (5) are both larger than the light transmission holes (6).

4. A novel large object distance microscope as claimed in claim 1 wherein: the coarse focusing screw (1) and the fine focusing screw (2) can rotate left and right.

5. A novel large object distance microscope as claimed in claim 1 wherein: the surfaces of the base (7), the mirror arm (8) and the top platform (9) are all sprayed with a layer of antioxidant coating.

6. A novel large object distance microscope as claimed in claim 1 wherein: the glass slide (5) is made of transparent glass.