CN110320655B

CN110320655B - Adjustable microscope shading structure

Info

Publication number: CN110320655B
Application number: CN201910624022.8A
Authority: CN
Inventors: 曾瑄; 梁智勇; 武莎斐; 刘媛媛
Original assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Current assignee: Peking Union Medical College Hospital Chinese Academy of Medical Sciences
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2021-06-25
Anticipated expiration: 2039-07-11
Also published as: CN110320655A

Abstract

An adjustable shading structure of a microscope comprises a fixing structure, a light filtering structure and an adjusting structure for adjusting the position of the light filtering structure, and is characterized in that the fixing structure is arranged on a bearing plate between an eyepiece and an objective of the microscope, the fixing structure is connected with a microscope assembly, the fixing structure is connected with the light filtering structure assembly, and the light filtering structure is connected with the adjusting structure assembly; through fixing fixed knot structure on the microscope, the light filtering structure filters microscope fluorescence to the light that gets into experimenter's eyes is weakened, when needs adjust slide glass's position or operations such as light ring, then adjusts the position of light filtering structure through adjusting the structure, makes the light filtering structure leave microscope certain distance, thereby makes things convenient for the person of reading to adjust the operation such as slide glass.

Description

Adjustable microscope shading structure

Technical Field

The invention belongs to the technical field of microscope optical accessories, and particularly relates to an adjustable microscope shading structure.

Background

The pathology is a medical science for researching the cause, the generation mechanism and the development rule of human diseases and the morphological structure, the functional metabolic change and the pathological change of organisms in the disease process.

The diagnosis of tissue or cell pathology is mainly made by fixing and staining a tissue or cytological specimen obtained by surgery or biopsy, observing morphological changes under a microscope, and detecting with necessary biomolecular markers. Despite the rapid development of various imaging techniques, the gross and microscopic features on which pathological diagnosis is based remain the most commonly used and reliable features in the present-day various examination methods, which are known as the "golden standards" for disease diagnosis, i.e., the final diagnosis of disease.

In the process of observing pathological sections by using a microscope, strong fluorescence can interfere with the operation of lateral operators and a slide reader and the observation of the pathological sections, thereby affecting related work and easily causing visual fatigue and other potential injuries to the slide reader.

The invention provides an adjustable light shielding structure of a microscope, aiming at the problems that in the process of observing pathological sections by using the microscope in the prior art, strong fluorescence can interfere related work of nearby personnel and observation of pathological sections by a slide reader, so that related work effects are influenced, the slide reader is easy to generate visual fatigue and the like.

Disclosure of Invention

In order to solve the problems that in the prior art, in the process of observing pathological sections by using a microscope, strong fluorescence can interfere with the related work of nearby personnel and the observation of pathological sections by a slide reader, so that the related work effect is influenced, and the visual fatigue of the slide reader is easily caused, the invention provides an adjustable light shielding structure of the microscope.

Furthermore, the fixing structure is arranged to be a fixing plate, the fixing plate is arranged to be a U-shaped plate with a rectangular main body, and the width of the fixing plate is larger than that of the bearing plate; the inner side edge of the fixing plate is arranged on the bearing plate, and the outer side edge of the fixing plate extends towards the outer side of the edge of the bearing plate; the arrangement can stably fix the fixing plate on the bearing plate on one hand, and can be conveniently combined and connected with the filtering structure on the other hand.

Furthermore, two sides of the opening end of the fixed plate are respectively provided with an elastic belt, the elastic belts are integrally connected with the fixed plate, and the free ends of the elastic belts at the two sides are bound or combined; this arrangement facilitates the fixing of the elastic band on the microscope to fix the position of the fixing plate.

Furthermore, a free end of the elastic belt on one side is provided with a plug-in buckle, a free end of the elastic belt on the other side is provided with a slot, and the plug-in buckle is connected with the slot in a combined manner; this arrangement can fix the fixing plate to the receiving plate more stably.

Further, an anti-skid layer which is sticky and is made of medical gel is arranged at the bottom end of the fixing plate, and the anti-skid layer and the fixing plate are integrally connected; the arrangement can ensure that the fixed plate is not easy to move on the bearing plate.

Further, the filtering structure is a transparent optical filter, and the optical filter is arranged below the fixed plate; 3 optical filters are arranged, namely a front side optical filter, a left side optical filter and a right side optical filter, and the 3 optical filters form a U shape which is the same as that of the fixed plate; the upper ends of the left optical filter, the right optical filter and the front optical filter are respectively connected with the bottom end of the fixed plate in a combined manner; the arrangement facilitates the position adjustment of the optical filter, thereby facilitating the operation of adjusting the glass slide or the aperture, etc.

Furthermore, 2 rotating shaft accommodating tubes are respectively arranged at the upper ends of the optical filters, and rotating shafts are arranged at the positions, corresponding to the rotating shaft accommodating tubes, of the bottom ends of the fixed plates; the rotating shaft accommodating tube is integrally connected with the optical filter, and the rotating shaft is integrally connected with the fixed plate; the arrangement can rotate each optical filter, thereby opening the optical filters to conveniently adjust the glass slide or the aperture and the like.

Furthermore, the adjusting structure comprises a semi-circular gear and a motor structure, wherein the semi-circular gear is arranged on the optical filter, and the motor structure drives the semi-circular gear to rotate; the over-semicircular gear is integrally connected with the optical filter, and the motor structure is connected with the over-semicircular gear in a combined manner; the arrangement can drive the semicircular gear to rotate through the motor, so as to drive the optical filter to rotate, open the optical filter to the outer side of the microscope for a certain distance, and facilitate the operation of a reader.

Further, a semi-circular gear is arranged in the middle of the upper ends of the inner side walls of the left side optical filter and the right side optical filter respectively, and the semi-circular gears are connected with the left side optical filter and the right side optical filter integrally; the arrangement can conveniently open the left optical filter and the right optical filter, and can sufficiently meet the operation requirements of film readers.

Further, the motor structure comprises a motor host, a power supply structure, a control structure for controlling the motor host to rotate forward or reversely and a power gear meshed with the over-semicircular gear, wherein the radius of the power gear is larger than that of the over-semicircular gear; the motor host, the power supply structure and the control structure III are mutually connected; one side of the motor main machine is provided with a connecting shaft, one end of the connecting shaft is integrally connected with the motor main machine, and the other end of the connecting shaft is integrally connected with the power gear; the arrangement can enable the motor to drive the power gear to rotate, and the power gear is meshed with the over-semicircular gear, so that the power gear drives the over-semicircular gear to rotate, the over-semicircular gear is integrally connected with the optical filter, the optical filter is driven to rotate to be opened or closed, the optical filter is fixed when being opened to a proper position, and operation of a reader is facilitated.

Further, the control structure comprises a data adjusting module, a forward driving module, a reverse driving module and a position detecting module; the data regulation module carries out input, processing and output of power signals and position signals, then conducts the signals to the forward driving module or the backward driving module, controls the motor to rotate forward or backward, and the position detection module collects optical filter position signals and then transmits the optical filter position signals to the data regulation module.

Furthermore, a bearing plate for placing a motor structure is arranged at the bottom end of the fixed plate, the bearing plate is arranged to be an L-shaped plate with a rectangular main body, and the upper end of the bearing plate is integrally connected with the bottom end of the fixed plate; the motor host is arranged on a transverse plate of the bearing plate, and the power supply structure and the control structure are arranged on a longitudinal plate of the bearing plate; the arrangement can well fix the motor structure.

Furthermore, a rectangular motor accommodating cavity for accommodating a motor host is arranged on the transverse plate of the bearing plate, the rectangular motor accommodating cavity is integrally connected with the bearing plate, and an opening is formed in one end, close to the power gear, of the rectangular accommodating cavity; a rectangular hollow accommodating box for accommodating the power supply structure and the control structure is arranged on a longitudinal plate of the bearing plate, and the rectangular hollow accommodating box is integrally connected with the bearing plate; the arrangement can well protect the motor host, the control structure and the power supply structure, and can not block the motor from driving the power gear to rotate.

Further, a power key for controlling the power-on or power-off of the motor structure, an opening key and a closing key for controlling the opening or closing of the left optical filter and the right optical filter, and a charging hole for charging the power structure are arranged at the upper end of the fixing plate corresponding to the motor structure, and the power key, the opening key, the closing key and the charging hole are connected with the power structure and the control structure through electric wires; when the device is used, the motor structure is turned on through the power key, the opening construction is turned on when the left optical filter needs to be opened, the control structure controls the motor host to rotate in the forward direction, the power gear rotates in the forward direction, and the power gear drives the semi-circular gear to rotate in the reverse direction, so that the left optical filter is opened; when the left optical filter needs to be closed, the closing key is opened, the motor host drives the power gear to rotate in the reverse direction, and the power gear drives the semi-circular gear to rotate in the forward direction, so that the left optical filter is closed; the operation of opening or closing the right filter is the same as that of the left filter.

Or the front side optical filter is integrally connected with the fixed plate, and the left side optical filter and the right side optical filter are connected with the fixed plate in a combined manner through sliding rails; the left side optical filter and the right side optical filter are arranged below the fixed plate and are positioned on the outer side of the outer edge of the fixed plate; the arrangement enhances the overall firmness of the shading structure, and the left side optical filter and the right side optical filter can be moved, so that the operation of a reader is facilitated.

Further, the sliding track comprises sliding plates respectively arranged on the left side and the right side of the left side optical filter and on the left side and the right side of the right side optical filter, and a guide rail connected with the sliding plates in a combined manner; the upper end of the guide rail is open, and the lower end is closed; the sliding plate slides upwards or downwards in the guide rail and is respectively connected with the left side optical filter and the right side optical filter integrally; the guide rail close to one side of the front side optical filter is integrally connected with the side wall of the front side optical filter, and the guide rails arranged at the free ends of the left side optical filter and the right side optical filter are integrally connected with the bottom end of the fixed plate; the arrangement can ensure the stability of the left side optical filter and the right side optical filter.

Further, the adjusting structure comprises a toothed belt arranged on the optical filter and a motor structure driving the toothed belt to move upwards or downwards; the toothed belt is integrally connected with the optical filter, and the motor structure is connected with the toothed belt in a combined manner.

Furthermore, the middle positions of the upper ends of the inner side walls of the left side optical filter and the right side optical filter are respectively provided with the toothed belt, the length of the toothed belt is two thirds of the length of the left side optical filter and the right side optical filter, and the toothed belt is meshed with the power gear; the toothed belt is driven to move upwards or downwards through the rotation of the power gear, so that the left optical filter or the right optical filter moves upwards or downwards, and the left optical filter or the right optical filter moves upwards for a certain distance, so that the experiment personnel can conveniently adjust the operation of the glass slide or the aperture and the like.

When the light shielding device is used, the fixing plate of the light shielding structure is firstly placed on the bearing plate between the microscope eyepiece and the objective lens, the anti-slip layer at the bottom of the fixing plate is in contact with the bearing plate, then the eye-buckles at the two ends of the elastic band are connected with the slots in a combined mode, the anti-slip layer and the elastic band can be used for integrally fixing the light shielding structure on the bearing plate, when the light filter is required to be opened, the power key is opened, the opening key is clicked, the power gear is driven by the motor to rotate forwards, the light filter is opened, the closing key is clicked after the operation of a viewer is finished, and the motor drives the power gear to rotate reversely, so.

Compared with the microscope shading instrument in the prior art, the technical scheme of the invention can facilitate a slide viewer to observe the condition of the slide glass while shading light, and the position of the optical filter can be electrically adjusted, so that the operation is simple, time and labor are saved, the slide viewer can conveniently adjust the slide glass and the like by changing the position of the optical filter, and the microscope shading instrument has good technical effect.

Drawings

FIG. 1 is a schematic diagram of an adjustable light shielding structure for a microscope with a semi-circular gear;

FIG. 2 is a schematic diagram of an overall rear view of an adjustable light shielding structure for a microscope with a semicircular gear according to the present invention;

FIG. 3 is a partially enlarged view of the junction between the rotating shaft and the rotating shaft accommodating tube of the adjustable light shielding structure of the microscope of the present invention;

FIG. 4 is an enlarged schematic view of the junction between the power gear and the over-half gear of an adjustable light-shielding structure of the microscope according to the present invention;

FIG. 5 is a schematic view of the overall structure of a motor and a supporting plate of an adjustable shading structure of a microscope according to the present invention;

FIG. 6 is an enlarged schematic view of the motor main unit and the power gear of the adjustable light shielding structure of the microscope of the present invention;

FIG. 7 is a schematic diagram of the overall structure of an adjustable motor structure of a light shielding structure of a microscope according to the present invention;

FIG. 8 is an enlarged schematic view of the junction between the left side filter and the fixing plate of the adjustable light shielding structure of the microscope according to the present invention;

FIG. 9 is a schematic diagram of a rear view enlarged structure of a joint between a left side optical filter and a fixing plate of an adjustable light shielding structure of a microscope according to the present invention;

FIG. 10 is a schematic view of an adjustable light shielding structure of a microscope with a toothed belt and a slide rail according to the present invention;

FIG. 11 is an enlarged view of the connection between the power gear and the toothed belt of the adjustable light-shielding structure of the microscope of the present invention;

FIG. 12 is a schematic view of a partially enlarged structure of a joint between a slide rail and a slide plate of an adjustable light shielding structure of a microscope according to the present invention;

fig. 13 is a schematic cross-sectional enlarged view of a slide rail of an adjustable light shielding structure of a microscope according to the present invention.

In the figure, 1, fixing plate; 11. an elastic band; 111. inserting and buckling; 112. a slot; 12. a power key; 13. an open key; 14. a close key; 15. a charging hole; 16. a rotating shaft; 17. a support plate; 171. a rectangular motor accommodating cavity; 172. a rectangular hollow containment box; 18. an anti-slip layer; 2. a light filtering structure; 21. a left side optical filter; 22. a right side optical filter; 23. a front side filter; 24. a semi-circular gear; 25. a rotating shaft accommodating tube; 26. a toothed belt; 27. a slide plate; 28. a guide rail; 3. a motor structure; 31. a motor host; 32. a power supply structure; 33. a control structure; 34. a connecting shaft; 35. a power gear.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, 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.

The specific structures of the motor host, the power supply structure, the control structure, the power supply key, the opening key, the closing key and the charging hole and the connection among the structures are well known by persons in the art and can be easily implemented; the forward rotation and reverse rotation of the motor also belong to the mature and widely used prior art; the specific structure and connection mode of the eye-splice and the slot belong to the mature and widely used prior art; the technical solution is not specifically described and illustrated in the above prior art, and those skilled in the art can understand the prior art, so that the technical solution does not have the problem of insufficient disclosure.

Embodiment 1 an adjustable light shielding structure for microscope

An adjustable shading structure of a microscope comprises a fixing structure, a light filtering structure 2 and an adjusting structure for adjusting the position of the light filtering structure 2, and is characterized in that the fixing structure is arranged on a bearing plate between an eyepiece and an objective of the microscope, the fixing structure is connected with the microscope in a combined manner, the fixing structure is connected with the light filtering structure 2 in a combined manner, and the light filtering structure 2 is connected with the adjusting structure in a combined manner; through fixing fixed knot structure on the microscope, filtering structure 2 filters microscope fluorescence to the light that gets into the experimenter eyes is weakened, when needs adjust the operation such as the position of slide glass or light ring, then adjusts the position of filtering structure 2 through adjusting the structure, makes filtering structure 2 leave certain distance of microscope, thereby makes things convenient for the person of reading to adjust the operation such as slide glass.

The fixing structure is arranged to be a fixing plate 1, the fixing plate 1 is arranged to be a U-shaped plate with a rectangular main body, and the width of the fixing plate 1 is larger than that of the bearing plate; the inner side edge of the fixed plate 1 is arranged on the bearing plate, and the outer side edge of the fixed plate 1 extends towards the outer side of the edge of the bearing plate; the arrangement can stably fix the fixing plate 1 on the bearing plate on one hand, and can be conveniently combined and connected with the filtering structure 2 on the other hand.

The light filtering structure 2 is a transparent light filter, and the light filter is arranged below the fixed plate 1; 3 optical filters are arranged, namely a front side optical filter 23, a left side optical filter 21 and a right side optical filter 22, and the 3 optical filters form a U shape which is the same as that of the fixed plate 1; the upper ends of the left optical filter 21, the right optical filter 22 and the front optical filter 23 are respectively connected with the bottom end of the fixed plate 1 in a combined manner; the arrangement facilitates the position adjustment of the optical filter, thereby facilitating the operation of adjusting the glass slide or the aperture, etc.

The adjusting structure comprises a semi-circular gear 24 arranged on the optical filter and a motor structure 3 driving the semi-circular gear 24 to rotate; the over-semicircular gear 24 is integrally connected with the optical filter, and the motor structure 3 is connected with the over-semicircular gear 24 in a combined manner; the arrangement can drive the semi-circular gear 24 to rotate through the motor structure 3, so as to drive the optical filter to rotate, open the optical filter to the outer side of the microscope for a certain distance, and facilitate the operation of a reader.

A semi-circular gear 24 is respectively arranged in the middle of the upper ends of the inner side walls of the left side filter 21 and the right side filter 22, and the semi-circular gear 24 is respectively connected with the left side filter 21 and the right side filter 22 integrally; this arrangement can facilitate the opening of the left filter 21 and the right filter 22, which is enough to satisfy the operation requirement of the reader.

The motor structure 3 comprises a motor host 31, a power supply structure 32, a control structure 33 for controlling the motor host 31 to rotate in the forward direction or the reverse direction, and a power gear 35 meshed with the over-semicircular gear 24, wherein the radius of the power gear 35 is larger than that of the over-semicircular gear 24; the motor host 31, the power supply structure 32 and the control structure 33 are connected with each other; a connecting shaft 34 is arranged on one side of the motor main unit 31, one end of the connecting shaft 34 is integrally connected with the motor main unit 31, and the other end of the connecting shaft is integrally connected with a power gear 35; the arrangement can enable the motor structure 3 to drive the power gear 35 to rotate, and because the power gear 35 is meshed with the over-semicircular gear 24, the power gear 35 drives the over-semicircular gear 24 to rotate, the over-semicircular gear 24 is integrally connected with the optical filter, so that the optical filter is driven to rotate to be opened or closed, the optical filter is fixed when being opened to a proper position, and operation of a reader is facilitated.

The control structure 33 comprises a data adjusting module, a forward driving module, a reverse driving module and a position detecting module; the data regulation module carries out input, processing and output of power signal and position signal, then with signal conduction to forward drive module or reverse drive module, control motor structure 3 carries out forward rotation or reverse rotation, and the position detection module carries out the collection of light filter position signal then transmits to the data regulation module.

A bearing plate 17 for placing the motor structure 3 is arranged at the bottom end of the fixed plate 1, the bearing plate 17 is an L-shaped plate with a rectangular main body, and the upper end of the bearing plate 17 is integrally connected with the bottom end of the fixed plate 1; the motor main unit 31 is arranged on a transverse plate of the bearing plate 17, and the power supply structure 32 and the control structure 33 are arranged on a longitudinal plate of the bearing plate 17; this arrangement provides a good fixation of the motor structure 3.

A power key 12 for controlling the power-on or power-off of the motor structure 3, an open key 13 and a close key 14 for controlling the opening or closing of the left side optical filter 21 and the right side optical filter 22, and a charging hole 15 for charging the power structure 32 are arranged at the position, corresponding to the motor structure 3, of the upper end of the fixing plate 1, and the power key 12, the open key 13, the close key 14 and the charging hole 15 are connected with the power structure 32 and the control structure 33 through wires; when the device is used, the motor structure 3 is turned on through the power key 12, when the left side optical filter 21 needs to be turned on, the opening construction is turned on, the control structure 33 controls the motor host 31 to rotate in the forward direction, the power gear 35 rotates in the forward direction, and the power gear 35 drives the semi-circular gear 24 to rotate in the reverse direction, so that the left side optical filter 21 is turned on; if the left optical filter 21 needs to be closed, the closing key 14 is opened, the motor host 31 drives the power gear 35 to rotate in the reverse direction, and the power gear 35 drives the semi-circular gear 24 to rotate in the forward direction, so that the left optical filter 21 is closed;

the operation of opening or closing the right filter 22 is the same as that of the left filter 21.

Embodiment 2 an adjustable light shielding structure for microscope

Two sides of the opening end of the fixing plate 1 are respectively provided with an elastic belt 11, the elastic belts 11 are integrally connected with the fixing plate 1, and free ends of the elastic belts 11 at two sides are bound or combined; this arrangement facilitates the securing of the elastic band 11 to the microscope and thus the position of the fixation plate 1.

A free end of the elastic belt 11 on one side is provided with a buckle 111, a free end of the elastic belt 11 on the other side is provided with a slot 112, and the buckle 111 is connected with the slot 112 in a combined manner; this arrangement enables the fixing plate 1 to be fixed to the receiving plate more stably.

The bottom end of the fixed plate 1 is provided with a sticky anti-skid layer 18 made of medical gel, and the anti-skid layer 18 and the fixed plate 1 are integrally connected; this arrangement ensures that the fixing plate 1 is not susceptible to positional displacement on the receiving plate.

The upper end of the fixing plate 1 is provided with a power key 12 for controlling the power-on or power-off of the motor structure 3, an opening key 13 and a closing key 14 for controlling the opening or closing of the left side optical filter 21 and the right side optical filter 22, and a charging hole 15 for charging the power structure 32, wherein the power key 12, the opening key 13, the closing key 14 and the charging hole 15 are connected with the power structure 32 and the control structure 33 through wires.

Embodiment 3 an adjustable light shielding structure for microscope

2 rotating shaft accommodating tubes 25 are respectively arranged at the upper ends of the optical filters, and a rotating shaft 16 is arranged at the bottom end of the fixing plate 1 and corresponds to the rotating shaft accommodating tubes 25; the rotating shaft accommodating tube 25 is integrally connected with the optical filter, and the rotating shaft 16 is integrally connected with the fixing plate 1; the arrangement can rotate each optical filter, thereby opening the optical filters to conveniently adjust the glass slide or the aperture and the like.

A power key 12 for controlling the power-on or power-off of the motor structure 3, an open key 13 and a close key 14 for controlling the opening or closing of the left side optical filter 21 and the right side optical filter 22, and a charging hole 15 for charging the power structure 32 are arranged at the position, corresponding to the motor structure 3, of the upper end of the fixing plate 1, and the power key 12, the open key 13, the close key 14 and the charging hole 15 are connected with the power structure 32 and the control structure 33 through wires; when the device is used, the motor structure 3 is turned on through the power key 12, when the left side optical filter 21 needs to be turned on, the opening construction is turned on, the control structure 33 controls the motor host 31 to rotate in the forward direction, the power gear 35 rotates in the forward direction, and the power gear 35 drives the semi-circular gear 24 to rotate in the reverse direction, so that the left side optical filter 21 is turned on; if the left optical filter 21 needs to be closed, the closing key 14 is opened, the motor host 31 drives the power gear 35 to rotate in the reverse direction, and the power gear 35 drives the semi-circular gear 24 to rotate in the forward direction, so that the left optical filter 21 is closed; the operation of opening or closing the right filter 22 is the same as that of the left filter 21.

Embodiment 4 an adjustable light shielding structure for microscope

A rectangular motor accommodating cavity 171 for accommodating the motor host 31 is arranged on the transverse plate of the bearing plate 17, the rectangular motor accommodating cavity 171 is integrally connected with the bearing plate 17, and an opening is arranged at one end of the rectangular accommodating cavity close to the power gear 35; a rectangular hollow accommodating box 172 for accommodating the power supply structure 32 and the control structure 33 is arranged on the longitudinal plate of the bearing plate 17, and the rectangular hollow accommodating box 172 is integrally connected with the bearing plate 17; the arrangement can well protect the motor host 31, the control structure 33 and the power supply structure 32, and can not prevent the motor structure 3 from driving the power gear 35 to rotate.

Embodiment 5 an adjustable light shielding structure for microscope

The front side optical filter 23 is integrally connected with the fixing plate 1, and the left side optical filter 21 and the right side optical filter 22 are connected with the fixing plate 1 in a combined manner through a sliding track; the left filter 21 and the right filter 22 are arranged below the fixing plate 1 and are positioned outside the outer edge of the fixing plate 1; the arrangement enhances the firmness of the whole shading structure, and the left side optical filter 21 and the right side optical filter 22 can be moved, thereby being convenient for a reader to operate.

The sliding track comprises sliding plates 27 respectively arranged on the left side and the right side of the left side optical filter 21 and on the left side and the right side of the right side optical filter 22, and a guide rail 28 connected with the sliding plates 27 in a combined manner; the upper end of the guide rail 28 is open, and the lower end is closed; the sliding plate 27 slides upwards or downwards in the guide rail 28, and the sliding plate 27 is respectively connected with the left side optical filter 21 and the right side optical filter 22 integrally; the guide rail 28 close to one side of the front side optical filter 23 is integrally connected with the side wall of the front side optical filter 23, and the guide rails 28 arranged at the free ends of the left side optical filter 21 and the right side optical filter 22 are integrally connected with the bottom end of the fixed plate 1; this arrangement can ensure the stability of the left filter 21 and the right filter 22.

The adjusting structure comprises a toothed belt 26 arranged on the optical filter and a motor structure 3 driving the toothed belt 26 to move upwards or downwards; the toothed belt 26 is integrally connected with the optical filter, and the motor structure 3 is connected with the toothed belt 26 in a combined manner.

The middle positions of the upper ends of the inner side walls of the left side optical filter 21 and the right side optical filter 22 are respectively provided with the toothed belt 26, the length of the toothed belt 26 is two thirds of the length of the left side optical filter 21 and the right side optical filter 22, and the toothed belt 26 is meshed with the power gear 35; the rotation of the power gear 35 drives the toothed belt 26 to move upwards or downwards, so that the left optical filter 21 or the right optical filter 22 moves upwards or downwards, and the left optical filter 21 or the right optical filter 22 moves upwards for a certain distance, which is convenient for an experimenter to adjust the operation of a glass slide or an aperture.

The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.

Claims

1. An adjustable shading structure of a microscope comprises a fixing structure, a light filtering structure (2) and an adjusting structure for adjusting the position of the light filtering structure (2), and is characterized in that the fixing structure is arranged on a bearing plate between an eyepiece and an objective of the microscope, the fixing structure is connected with a microscope in a combined manner, the fixing structure is connected with the light filtering structure (2) in a combined manner, and the light filtering structure (2) is connected with the adjusting structure in a combined manner; the fixing structure is arranged as a fixing plate (1); the light filtering structure (2) is a transparent light filter, and the light filter is arranged below the fixed plate (1); 3 optical filters, namely a front optical filter (23), a left optical filter (21) and a right optical filter (22), are arranged, and the front optical filter (23), the left optical filter (21) and the right optical filter (22) are respectively connected with the fixing plate (1) in a combined manner; the adjusting structure comprises a semi-circular gear (24) arranged on the optical filter and a motor structure driving the semi-circular gear (24) to rotate; the over-semicircular gear (24) is integrally connected with the optical filter, and the motor structure is connected with the over-semicircular gear (24) in a combined manner; 2 rotating shaft accommodating tubes (25) are respectively arranged at the upper ends of the optical filters, and rotating shafts (16) are arranged at the positions, corresponding to the rotating shaft accommodating tubes (25), of the bottom ends of the fixing plates (1); the rotating shaft accommodating tube (25) is integrally connected with the optical filter, and the rotating shaft (16) is integrally connected with the fixing plate (1).

2. The adjustable light shade structure for microscopes according to claim 1, wherein the fixing plate (1) is configured as a U-shaped plate with a rectangular main body, and the width of the fixing plate (1) is larger than that of the receiving plate; the inner side edge of the fixing plate (1) is arranged on the bearing plate, and the outer side edge of the fixing plate (1) extends towards the outer side of the edge of the bearing plate.

3. Adjustable microscope shading structure according to claim 2, characterized in that the 3 filters make up the same U-shape as the fixation plate (1).

4. The adjustable shading structure for the microscope according to claim 3, wherein a supporting plate (17) for placing the motor structure is arranged at the bottom end of the fixing plate (1), the supporting plate (17) is arranged to be an L-shaped plate with a rectangular main body, and the upper end of the supporting plate (17) is integrally connected with the bottom end of the fixing plate (1); the motor main machine (31) is arranged on a transverse plate of the bearing plate (17), and the power supply structure (32) and the control structure (33) are arranged on a longitudinal plate of the bearing plate (17).

5. An adjustable shading structure of a microscope comprises a fixing structure, a light filtering structure (2) and an adjusting structure for adjusting the position of the light filtering structure (2), and is characterized in that the fixing structure is arranged on a bearing plate between an eyepiece and an objective of the microscope, the fixing structure is connected with a microscope in a combined manner, the fixing structure is connected with the light filtering structure (2) in a combined manner, and the light filtering structure (2) is connected with the adjusting structure in a combined manner; the fixing structure is arranged as a fixing plate (1); the light filtering structure (2) is a transparent light filter, and the light filter is arranged below the fixed plate (1); 3 optical filters, namely a front optical filter (23), a left optical filter (21) and a right optical filter (22), are arranged, the front optical filter (23) is integrally connected with the fixed plate (1), and the left optical filter (21) and the right optical filter (22) are combined and connected with the fixed plate (1) through sliding rails; the sliding track comprises sliding plates (27) which are respectively arranged on the left side and the right side of the left side optical filter (21) and the left side and the right side of the right side optical filter (22), and a guide rail (28) which is connected with the sliding plates (27) in a combined manner; the sliding plate (27) slides upwards or downwards in the guide rail (28), and the sliding plate (27) is respectively connected with the left side optical filter (21) and the right side optical filter (22) integrally; a guide rail (28) close to one side of the front side optical filter (23) is integrally connected with the side wall of the front side optical filter (23), and guide rails (28) arranged at the free ends of the left side optical filter (21) and the right side optical filter (22) are integrally connected with the bottom end of the fixed plate (1); the adjusting structure comprises a toothed belt (26) arranged on the optical filter and a motor structure for driving the toothed belt (26) to move upwards or downwards; the toothed belt (26) is integrally connected with the optical filter, and the motor structure is connected with the toothed belt (26) in a combined manner.

6. The adjustable light shielding structure for microscope according to claim 5, wherein the left filter (21) and the right filter (22) are disposed below the fixing plate (1) and outside the outer edge of the fixing plate (1).

7. Adjustable microscope shading structure according to claim 6, characterized in that the guide rail (28) is open at its upper end and closed at its lower end.

8. The adjustable light shielding structure for microscope according to claim 7, wherein a toothed belt (26) is disposed at the middle position of the upper end of the inner sidewall of the left side filter (21) and the right side filter (22), the length of the toothed belt (26) is two thirds of the length of the left side filter (21) and the right side filter (22), the motor structure comprises a power gear (35), and the toothed belt (26) is engaged with the power gear (35).