CN210348049U

CN210348049U - Polarized light reading microscope

Info

Publication number: CN210348049U
Application number: CN201921649406.7U
Authority: CN
Inventors: 侯玉飞; 武平
Original assignee: Changchun Yuheng Era Photoelectric Technology Co ltd
Current assignee: Changchun Yuheng Era Photoelectric Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-04-17
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a polarized light reading microscope, include: eyepiece, lens cone remove adjustment mechanism, objective, base, wafer holder, work platen and connection the base with the lens cone removes adjustment mechanism's pillar group, be equipped with the orientation in the base the light source that the lens cone set up, the top of light source is equipped with can dismantle the connection the polarizer of base, the periphery cover of objective be equipped with polarizer complex analyzer. The polarized light reading microscope can be used as a common optical microscope and can also be used as a polarized light microscope, so that one microscope is multipurpose, and the equipment cost and the equipment occupation space are reduced.

Description

Polarized light reading microscope

Technical Field

The utility model relates to a microscope technical field, in particular to polarized light reading microscope.

Background

A polarized light microscope (Polarization microscope) is one of the essential instruments for physical laboratories of universities and colleges and universities, scientific research, industrial and mining measurement. The microscope is used for checking the anisotropy and birefringence of a sample by inserting a polarizer and an analyzing device into an optical system of a common optical microscope. The interference fringes (such as Newton's rings) with equal thickness and inclination can be observed, the wavelength of light wave and the curvature radius of lens can be measured, and the texture pattern of the ore slice and the like can be observed by using a polarized light method. However, when the polarized light microscope is used as a common microscope, the brightness of the field of view is reduced, the observation result is affected, the daily use requirement cannot be met, and a common optical microscope generally needs to be additionally configured, so that the equipment cost is increased, and a certain space is occupied.

Therefore, how to solve the problems of single function and inconvenient use of the polarized light microscope becomes a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a polarized light reading microscope, this microscope both can regard as ordinary optical microscope, can also regard as the polarized light microscope to use, can a mirror multi-purpose, and convenient to use practices thrift the space, reduces equipment cost.

In order to achieve the above object, the present invention provides a polarized light reading microscope, including: eyepiece, lens cone remove adjustment mechanism, objective, base, wafer holder, work platen and connection the base with the lens cone removes adjustment mechanism's pillar group, be equipped with the orientation in the base the light source that the lens cone set up, the top of light source is equipped with can dismantle the connection the polarizer of base, the periphery cover of objective be equipped with polarizer complex analyzer.

Optionally, the work table plate is arranged on the upper end face of the base, and the polarizer is arranged between the light source and the work table plate.

Optionally, one side of the base is provided with a mounting groove for the polarizer to slide into for mounting and fixing.

Optionally, the polarizer comprises a first polarizer and a polarizer holder for fixing the first polarizer, and the polarizer holder and the base are provided with vertically arranged positioning screw holes.

Optionally, the first polarizer is embedded in the polarizer holder, and a positioning protrusion for embedding and positioning the polarizer holder is disposed in the center of the base.

Optionally, the analyzer comprises a second polarizer and an analyzer seat for fixing the second polarizer, and the analyzer seat is cylindrical.

Optionally, the objective lens is provided with an external thread, and the analyzer seat is provided with an internal thread matched with the objective lens.

Optionally, the side walls of the objective lens and the analyzer seat are provided with positioning holes which are matched with each other, and the analyzer seat is connected with the objective lens through the positioning holes and the positioning piece.

Optionally, the positioning hole is a threaded hole, and the positioning piece is a screw.

Optionally, the lens barrel movement adjusting mechanism includes a vertically arranged lifting moving part connecting the lens barrel and a horizontally moving part connecting the lifting moving part and the support column group;

the lifting moving part and the lens cone are both provided with vertically extending scale strips.

Compared with the prior art, the utility model provides a polarized light reading microscope through set up the light source at the base, and the light source sets up towards the lens cone, and the polarizer setting is in the top of light source, wherein. The polarizer is detachably connected with the base, and the objective lens is sleeved with the polarization analyzer. When the device is required to be used as a polarized light microscope, light rays emitted by a light source pass through a polarizer, an object to be detected, an analyzer, an objective lens and an eyepiece and reach the eyes of an observer, and the circumferential positions of the polarizer and the analyzer are adjusted by rotation to obtain a proper detection visual field; when the microscope is used as a common microscope for observation, only the polarizer needs to be detached from the base, and the objective lens is replaced or the polarization analyzer sleeved on the objective lens is detached at the same time, so that the microscope can be used as the common microscope for observation, one lens is multipurpose, the equipment cost is saved, and the equipment occupation space is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of a polarized light reading microscope provided in an embodiment of the present invention.

Wherein:

the device comprises a 1-ocular lens, a 2-lens barrel, a 3-lifting moving part, a 4-transverse moving part, a 5-objective lens, a 6-analyzer, a 601-analyzer seat, a 602-second polarizing plate, a 603-pressing ring, a 7-support column group, an 8-base, an 81-positioning bulge, a 9-pressing clamp, a 10-working table plate, an 11-polarizer, a 1101-polarizer seat and a 1102-first polarizing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The polarized light is a microscope in which a polarizer 11 and an analyzer 6 are inserted into an optical system of an optical microscope to detect anisotropy and birefringence of a sample. The polarizer 11 and the analyzer 6 are polarizers, and are made of polarizing prisms or Nicole prisms of polarizing plates.

When light emitted from the light source passes through the two polarizers, the field of view is brightest if the directions of vibration of the polarizer 11 and the analyzer 6 are parallel to each other, i.e., in the "parallel polarization detection position". Conversely, if the two are perpendicular, i.e. in the case of "orthogonal yaw", the field of view is completely dark, and if the two are tilted, the field of view indicates a moderate brightness. Therefore, the linearly polarized light formed by the polarizer 11 can completely pass through the analyzer 6 if the vibration direction of the linearly polarized light is parallel to the vibration direction of the analyzer; if skewed, then can pass a portion; if vertical, it will not pass at all. Therefore, when using a polarized light microscope, in principle, the polarizer 11 and the analyzer 6 are in an orthogonal polarization detection state.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, fig. 1 is a schematic view of a polarized light reading microscope according to an embodiment of the present invention.

The structure of the polarized light reading microscope provided by the utility model is similar to the structure of the existing optical microscope, which comprises a lens barrel 2, an ocular lens 1 is arranged at the upper end of the lens barrel 2, an objective lens 5 is arranged at the lower end of the lens barrel 2, and the objective lens 5 and the lens barrel 2 can be connected through a converter; the lens barrel 2 is connected with the support column group 7 through the lens barrel movement adjusting mechanism and is fixed on the base 8 through the support column group 7, the base 8 is provided with a working table plate 10, and one side of the working table plate 10 is provided with a pressing sheet clamp 9; what is different is that a light source arranged towards the lens cone 2 is also arranged on the base 8, a polarizer 11 is arranged above the light source, the polarizer 11 is detachably connected with the base 8, the analyzer 6 is sleeved and connected at the periphery of the objective lens 5, and light rays emitted by the light source sequentially pass through the polarizer 11, the object to be detected, the analyzer 6, the objective lens 5 and the ocular lens 1 to reach eyes of observers; when the microscope is required to be used as a common microscope, the polarizer 11 and the analyzer 6 can be removed from the optical path of the microscope by only removing the polarizer 11 from the base 8, removing the analyzer 6 from the objective lens 5 or replacing the objective lens 5.

The polarized light reading microscope provided by the invention is described in more detail with reference to the accompanying drawings and specific embodiments.

In a specific embodiment provided by the present invention, the polarizer 11 and the analyzer 6 of the polarized light reading microscope are arranged as shown in fig. 1, wherein the base 8 is provided with a light source, the light source can be LED lamp beads, the upper end surface of the base 8 is arranged to bear the work platen 10 of the detected object, and the polarizer 11 is arranged between the light source and the work platen 10. Specifically, the polarizer 11 includes a first polarizing plate 1102 and a polarizer holder 1101 to which the first polarizing plate 1102 is fixed, and the first polarizing plate 1102 is fitted and fixed in the polarizer holder 1101. A hollow part for installing the polarizer holder 1101 is arranged between the light source and the working table plate 10, in order to facilitate the polarizer 11 to be detachably connected to the base 8, one side of the base 8 is provided with a mounting groove for the polarizer holder 1101 to slide into the hollow part, the mounting groove is a straight-line-shaped groove parallel to the upper end face of the base 8, the polarizer can be conveniently arranged between the light source and the working table plate 10 through the mounting groove, meanwhile, in order to facilitate the polarizer to be drawn out, the polarizer holder 1101 can also be provided with a handle, and after the polarizer is installed in place, the handle extends out of the base or the mounting groove.

Further, the polarizer holder 1101 is circular or rectangular frame, the polarizer is inserted into the top of the polarizer holder 1101, and a positioning protrusion 81 is disposed between the work platen 10 and the light source, the positioning protrusion 81 is used to match with a hole in the middle of the polarizer holder 1101, so that the polarizer holder 1101 is inserted and fixed. The positioning protrusion 81 may be a protrusion formed by an LED lamp, or may be a transparent protrusion covering the LED lamp and connecting the base 8, and a distance between an upper end surface of the positioning protrusion 81 and a lower end surface of the work table plate 10 is not less than a thickness or a height of the polarizer holder 1101, so that the polarizer holder 1101 is attached to the lower end surface of the work table plate 10 in place.

Furthermore, the base 8 and the polarizer holder 1101 are provided with vertically extending positioning screw holes, the positioning screw holes of the base 8 extend from the upper end surface of the base 8 to the hollow part between the working platen 10 and the light source, so that the polarizer 11 is conveniently fixed on the base 8 through the positioning bolts, and when the analyzer 6 and the polarizer 11 need to rotate relatively in the circumferential direction, only the objective lens 5 needs to be rotated or the analyzer 6 needs to be rotated relative to the objective lens 5. When the polarizer is used as a common optical microscope, the positioning bolt is screwed out of the positioning screw hole, the polarizer holder 1101 is lifted by the handle, and the polarizer 11 is attached to the lower end face of the workbench plate 10 and slowly moved out of the hollow part and the mounting groove.

The polarizer 11 can be disassembled and assembled through the installation groove formed in the side wall of the base 8, and the working table plate 10 can be designed to be detachable relative to the base 8. When the polarizer 11 is installed, the working table plate 10 is installed, and the order of the polarizer 11 and the working table plate 10 is reversed, the working table plate 10 can be provided with screw holes matched with the screw holes of the polarizer holder 1101 and the base 8, so that the polarizer 11 and the working table plate 10 can be fixed simultaneously through the positioning bolts.

The analyzer 6 includes a second polarizing plate 602 and an analyzer holder 601 for fixing the second polarizing plate 602, the analyzer holder 601 is a cylindrical housing, and the second polarizing plate 602 is pressed on the bottom of the analyzer holder 601 through a pressing ring 603 so as to be sleeved on the periphery of the objective lens 5. The objective lens 5 and the analyzer holder 601 are connected as follows: the outer periphery of the objective lens 5 is provided with an external thread, and the inner wall of the analyzer holder 601 is provided with an internal thread matched with the external thread of the objective lens 5. The analyzer holder 601 is screwed below the objective lens 5, and when the polarized light reading microscope is required to be used as a normal optical microscope, the analyzer holder 601 can be removed by rotation, and observation can be performed by replacing the objective lens 5 by rotating the converter.

The objective lens 5 and the analyzer seat 601 can be connected with each other through screw thread fit, and the circumferential direction of the side walls of the objective lens 5 and the analyzer seat 601 can be provided with mutually matched positioning holes, so that circumferential connection and fixation can be realized through the positioning holes and the positioning pieces.

When the polarizer 11 and the analyzer 6 need to rotate relatively in the circumferential direction, the analyzer 6 can be driven to rotate relative to the polarizer 11 by rotating the objective lens 5; the positioning holes can be threaded holes or pin holes, and the positioning keys are corresponding to screws or pins. In addition, an annular groove can be formed in the outer wall of the objective lens 5, an elastic clamping claw matched with the annular groove is arranged on the inner wall of the polarization analyzer seat 601, the polarization analyzer seat can be clamped in the annular groove through the elastic clamping claw to be connected and fixed with the objective lens 5, and the polarization analyzer 6 and the polarizer 11 can rotate circumferentially relative to each other through the elastic clamping claw rotating around the annular groove.

The lens barrel movement adjusting mechanism specifically comprises two parts: a vertically movable section 3 connecting the lens barrel 2 and a horizontally movable section 4 connecting the vertically movable section 3 and the column group 7; the lifting moving part 3 is vertically arranged and matched with the lens cone 2, the gear teeth are driven to rotate through a rotating handle, the lens cone 2 is provided with a vertically extending rack, and the lens cone 2 is driven to lift through the matching of the gear teeth and the rack; selecting a proper gear diameter and a transmission gear meshed with the gear according to the adjustment precision; the transverse moving part 4 is connected below the lifting moving part 3 and comprises two parts which are oppositely arranged, one part of the transverse moving part is fixedly connected with the support column group 7, the other part of the transverse moving part is used for carrying out relative motion relative to one part fixedly connected with the support column group 7, the structure of the transverse moving part 4 can be arranged by referring to the lifting moving, the difference is that the transverse moving part 4 and the lifting moving part 3 have different motion directions, a moving locking mechanism can be arranged according to actual requirements, the locking mechanism is used for fixing the lens cone moving adjusting mechanism after the lens cone 2 moves in place, the observation is convenient, and the lens cone moving adjusting mechanism and the locking mechanism can be arranged by referring to the existing microscope.

The utility model provides a polarized light reading microscope is still including setting up the scale bar in lens cone 2 and lifting movement portion 3, and the vertical setting of scale bar can be through adjustment lifting movement portion 3, aligns the cross silk in the microscope field of vision respectively by two observation points of being examined the object, can acquire the distance of being examined two observation points of the object according to the difference of readings twice on the scale bar. Thereby make the utility model provides a polarized light reading microscope both can be used as polarized light microscope, can remove polarizer 11 and analyzer 6 again as ordinary optical microscope, can also be used as reading microscope range finding simultaneously.

When the device is used as a polarized light microscope, an object to be detected such as an ore slice is placed on the working table plate 10, the polarizer 11 and the analyzer 6 are aligned, the ore slice is fixed by the tabletting clamp 9, the light source is turned on, then the ore slice is enabled to appear in the center of the visual field by adjusting the lifting moving part 3 and the transverse moving part 4, the analyzer 6 is slowly rotated, and meanwhile, the lifting moving part 3 is adjusted in a matching manner, so that clear ore cultural and literature pattern positions appear in the visual field. When the optical microscope is used as a common optical microscope, the analyzer 6 is detached from the objective lens 5 or the objective lens 5 is replaced, and the polarizer 11 is detached from the light source of the base 8 and the workbench plate 10, and meanwhile, the distance measurement can be carried out through the scale bar.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The polarized light reading microscope provided by the utility model is introduced in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A polarized light reading microscope, comprising: eyepiece (1), lens cone (2), lens cone remove adjustment mechanism, objective (5), base (8), preforming clamp (9), work platen (10) and connection base (8) with the lens cone removes adjustment mechanism's pillar group (7), its characterized in that, be equipped with the orientation in base (8) the light source that lens cone (2) set up, the top of light source is equipped with can dismantle the connection polarizer (11) of base (8), the periphery cover of objective (5) be equipped with polarizer (11) complex analyzer (6).

2. The reading microscope of polarized light according to claim 1, characterized in that the stage plate (10) is provided on the upper end face of the base (8), and the polarizer (11) is provided between the light source and the stage plate (10).

3. The polarized light reading microscope of claim 2, characterized in that one side of the base (8) is provided with a mounting groove for sliding in the polarizer (11) to realize mounting and fixing.

4. A polarized light reading microscope according to claim 3, characterized in that the polarizer (11) comprises a first polarizer (1102) and a polarizer holder (1101) for fixing the first polarizer (1102), the polarizer holder (1101) and the base (8) being provided with vertically arranged positioning screw holes.

5. The polarized light reading microscope of claim 4, wherein the first polarizer (1102) is embedded in the polarizer holder (1101), and a positioning protrusion (81) for embedding and positioning the polarizer holder (1101) is provided at the center of the base (8).

6. A polarized light reading microscope according to claim 1 characterised in that the analyzer (6) comprises a second polariser (602) and an analyzer mount (601) to which the second polariser (602) is secured, the analyzer mount (601) being cylindrical.

7. A reading microscope according to claim 6, characterized in that the objective (5) is externally threaded and the analyzer mount (601) is internally threaded for cooperation with the objective (5).

8. A reading microscope according to claim 6, wherein the side walls of the objective lens (5) and the analyzer holder (601) are provided with co-operating locating holes, and the analyzer holder (601) is connected to the objective lens (5) by the locating holes and the locating elements.

9. The polarized light reading microscope of claim 8, wherein the positioning holes are threaded holes and the positioning members are screws.

10. The polarized light reading microscope according to any one of claims 1 to 9, wherein the barrel movement adjusting mechanism comprises a vertically disposed elevating moving part (3) connecting the barrel (2), and a laterally moving part (4) connecting the elevating moving part (3) and the column group (7);

the lifting moving part (3) and the lens cone (2) are both provided with vertically extending scale strips.