Microscope with adjustable field of view of light collector and brightness memory display

Abstract

The utility model discloses a microscope with adjustable field of view and brightness memory display of a light collector, which comprises a microscope main body with a built-in mainboard and a lower light source; a stage; the objective lens positioning unit is used for detecting a position signal of an objective lens on the objective lens converter, and the mainboard memorizes the position and brightness of the objective lens according to the obtained position signal; the light collector comprises a light collecting unit and a diaphragm adjusting unit, the light collecting unit comprises a lens seat and a light collecting lens group, the light collecting lens group is used for converging light rays to the objective table through the diaphragm adjusting unit, and the lens seat is connected with the microscope main body and is provided with a dovetail ring; the diaphragm adjusting unit comprises a diaphragm seat, a rotating ring, a diaphragm and an adjusting screw, and can realize opening and closing of the diaphragm and adjust the center by adjusting the adjusting screw; and the display unit is used for displaying the position and brightness of the objective lens in real time. The device can detect and memorize the position and the brightness of the objective lens on the microscope and adjust the field of view of the light collector to center the diaphragm image, thereby being beneficial to improving the imaging quality and the working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of microscopes, and in particular relates to a microscope with an adjustable field of view of a light collector and brightness memory display. Background Art

[0002] Microscope is a precision optical instrument, which is widely used in medical, scientific research, education and other fields to conduct research in biology, pathology and clinical experiments. However, in the prior art, the light collector either does not have an aperture, and cannot adjust the size of the observation field, which affects the image quality; or it is difficult to accurately match the aperture, resulting in errors, and the aperture image cannot be centered, which also affects the image quality. In addition, when using a microscope for observation, the objective lens magnification used is different depending on the observation requirements. Each time the converter is turned to use an objective lens of a different magnification, the illumination brightness needs to be readjusted, and when switching to the previous magnification objective lens, the adjusted brightness is inconsistent with the original brightness, and there will be a certain error, resulting in inconsistent light and dark effects of the images seen before and after, and unable to provide effective comparison data, which affects the judgment and conclusion of the research. The existing traditional optical microscopes often solve the above problems by manually adjusting the brightness of the light source, the aperture diaphragm, etc. This method requires repeated adjustments every time, which is cumbersome, and the adjusted parameters will not be memorized and displayed. When used again, they need to be readjusted, and the adjustment accuracy is difficult to guarantee and time-consuming and laborious. In addition, the objective lens and lighting parameters cannot be displayed in real time, and it is not convenient to record experimental data, which affects work efficiency and the operator's experience. Therefore, a microscope with both adjustable field of view of the light collector and brightness memory display is proposed. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned problems and to propose a microscope with an adjustable light collector field of view and brightness memory display, which can realize the detection and memory of the objective lens position and brightness on the microscope and adjust the light collector field of view to achieve the centering of the aperture image, thereby helping to improve imaging quality and work efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a microscope with adjustable field of view of a light collector and brightness memory display, comprising a microscope body, a stage, an objective lens positioning unit, a display unit and a light collector, wherein the objective lens positioning unit, the stage, the display unit and the light collector are all connected to the microscope body, wherein:

[0006] The microscope body has a main board and a lower light source built in, and the lower light source is electrically connected to the main board;

[0007] The objective lens positioning unit includes an objective lens converter and a detection module. The objective lens converter is connected to the microscope body. The detection module is built into the objective lens converter and is used to detect the position signal of the objective lens on the objective lens converter. The main board memorizes the position and brightness of the objective lens according to the acquired position signal.

[0008] A light collector comprises a light collecting unit and an aperture adjustment unit, wherein:

[0009] The light collecting unit includes a lens seat and a light collecting lens group built in the lens seat, the light collecting lens group is used to collect the light emitted by the lower light source and then pass through the aperture adjustment unit to reach the stage, the lens seat is connected to the microscope body and is provided with a dovetail ring perpendicular to the axis;

[0010] The aperture adjustment unit includes an aperture seat, a rotating ring, an aperture and a plurality of adjusting screws. The aperture seat is coaxially sleeved on the lens seat. The adjusting screws are circumferentially distributed and penetrate the aperture seat and abut against the inclined surface of the dovetail ring. The inclined surface of the dovetail ring faces away from the aperture. The rotating ring is rotatably connected to the aperture seat. The aperture is installed on the aperture seat and is driven to open and close by rotating the rotating ring. The center is adjusted by adjusting the adjusting screws.

[0011] The display unit includes a display screen electrically connected to the mainboard and is used for displaying the position and brightness of the objective lens in real time.

[0012] Preferably, the aperture adjustment unit also includes a first fixing seat, a second fixing seat, a color filter and frosted glass. The first fixing seat is threadedly connected to the aperture seat, the second fixing seat is clamped to the first fixing seat, the frosted glass is mounted on the first fixing seat, and the color filter is clamped and fixed to the first fixing seat by the second fixing seat. The light passing through the light collecting unit passes through the aperture, frosted glass and color filter in sequence to reach the stage.

[0013] Preferably, the first fixing seat is also provided with an avoidance groove for facilitating the disassembly of the second fixing seat.

[0014] Preferably, the objective lens positioning unit includes an outer turntable, a locking ring and a fixed disk, the fixed disk is connected to the microscope body, the outer turntable is rotatably connected to the fixed disk and is locked and fixed by the locking ring, the outer turntable also has a plurality of objective lens mounting holes for the built-in objective lens evenly distributed in a circumferential direction, the detection module includes a sensing module and a plurality of magnetic groups, the magnetic group includes at least one magnetic column, the sensing module includes a sensing seat and a plurality of sensing poles that are interconnected, the sensing poles are electrically connected to the main board and are connected to the fixed disk through the sensing seat, each magnetic group is installed on the outer turntable and corresponds to the objective lens one by one, and when the outer turntable is rotated to switch the objective lens, each sensing pole realizes the position detection of the objective lens by sensing the corresponding magnetic group.

[0015] Preferably, a positioning groove is provided on the outer turntable, and a positioning spring piece is provided on the fixed plate. When the outer turntable is rotated, the positioning spring piece cooperates with the positioning groove to limit the position.

[0016] Preferably, the sensing magnetic pole is a Hall sensor.

[0017] Preferably, a handle rod is provided on the diaphragm, a first groove is provided on the rotating ring, and a handle rod limiting groove is provided on the diaphragm seat. The handle rod cooperates with the first groove and slidingly cooperates with the handle rod limiting groove. The opening and closing of the diaphragm is achieved by driving the handle rod to rotate through the rotating ring, and the rotation angle of the diaphragm is limited by the handle rod limiting groove.

[0018] Preferably, the microscope with both adjustable field of view of the collector and brightness memory display also includes an upper light source and an adjustment knob. The upper light source is connected to the microscope body through a flexible bracket. The adjustment knob is fixed on the microscope body and electrically connected to the main board. The brightness of the light emitted by the lower light source is adjusted by rotating the adjustment knob.

[0019] Preferably, the display unit further comprises a display screen holder, a protective glass and a mounting bracket, the mounting bracket is connected to the microscope body, the display screen holder is connected to the mounting bracket, the display screen is mounted on the display screen holder, and the protective glass is mounted on the display screen holder and is used to protect the display screen.

[0020] Preferably, the light collecting unit also includes a spacer and a pressure ring, and the light collecting lens group includes a first lens and a second lens arranged in sequence along the optical axis, the first lens, the second lens, the spacer and the pressure ring are all built into the lens seat, the two ends of the spacer respectively abut against the adjacent surfaces of the first lens and the second lens, the other side of the first lens abuts against the lens seat, and the other side of the second lens abuts against the pressure ring, and the pressure ring is threadedly connected to the lens seat.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The present application improves the light collector and objective lens positioning unit on the traditional microscope, adds the function of adjustable center of light collector aperture, as well as objective lens position and brightness memory and intelligent display. Specifically, the center position of aperture image in the field of view can be adjusted by adjusting the adjustment screw of light collector, and the aperture adjustment unit and light collecting unit are designed separately, and will not affect each other. Only the center of the two needs to be adjusted, which helps to ensure the imaging quality; during use, the detection module will identify the objective lens position of the current objective lens converter, and transmit the corresponding position signal to the main board according to the matched objective lens, and the main board will memorize the brightness parameter of the corresponding objective lens, that is, match the position and brightness of the objective lens through binary coding, so that when the objective lens with different magnifications is used in the subsequent conversion, the main board can automatically switch the output according to the memory to adjust to the brightness parameter of the corresponding objective lens, and the position and brightness parameters of the objective lens will be displayed on the display unit in real time, which is convenient for users to collect data in real time. The brightness memory of the objective lens is convenient to restore the brightness condition that meets the requirements of the last adjustment when switching the objective lens without re-adjustment, which helps to ensure the imaging quality and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a microscope with an adjustable field of view of a light collector and a brightness memory display according to the utility model;

[0024] Figure 2 It is a structural schematic diagram of the light collector of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the light collecting unit of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the aperture adjustment unit of the utility model;

[0027] Figure 5 It is an exploded view of the aperture adjustment unit of the utility model;

[0028] Figure 6 The structure of the converter of the utility model is shown in FIG. Figure 1 ;

[0029] Figure 7 This is an exploded diagram of the structure of the converter of the utility model;

[0030] Figure 8 The structure of the converter of the utility model is shown in FIG. Figure 2 ;

[0031] Fig. 9 It is a structural schematic diagram of the display unit of the utility model.

[0032] Explanation of the reference numerals: 1. microscope body; 2. upper light source; 3. objective lens positioning unit; 4. objective lens; 5. stage; 6. display unit; 7. adjustment knob; 8. light collector; 31. outer turntable; 32. locking ring; 33. mounting joint; 34. induction module; 35. objective lens mounting hole; 36. fixing plate; 37. detection module; 311. positioning groove; 341. induction seat; 342. induction magnetic pole; 361. positioning spring; 371. magnetic group No. 1; 372. magnetic group No. 2; 373. magnetic group No. 3; 374. magnetic group No. 4; 375. magnetic group No. 5; 61. display screen seat ; 62. Protective glass; 63. Display screen; 64. Mounting bracket; 81. Light collecting unit; 82. Iris adjustment unit; 83. Adjusting screw; 811. Lens seat; 812. First lens; 813. Spacer; 814. Pressing ring; 815. Second lens; 821. Iris seat; 822. Rotating ring; 823. Iris; 824. First fixed seat; 825. Second fixed seat; 826. Color filter; 827. Frosted glass; 8211. Handle limit groove; 8221. First groove; 8231. Handle; 8241. Slot; 8242. Avoidance groove; 8251. Buckle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0035] like Figure 1-9 As shown, a microscope with an adjustable field of view of a light collector and a brightness memory display comprises a microscope body 1, a stage 5, an objective lens positioning unit 3, a display unit 6 and a light collector 8, wherein the objective lens positioning unit 3, the stage 5, the display unit 6 and the light collector 8 are all connected to the microscope body 1, wherein:

[0036] The microscope body 1 has a main board and a lower light source built in, and the lower light source is electrically connected to the main board;

[0037] The objective lens positioning unit 3 includes an objective lens converter and a detection module 37. The objective lens converter is connected to the microscope body 1. The detection module 37 is built into the objective lens converter and is used to detect the position signal of the objective lens 4 on the objective lens converter. The main board memorizes the position and brightness of the objective lens 4 according to the acquired position signal.

[0038] The light collector 8 comprises a light collecting unit 81 and an aperture adjustment unit 82, wherein:

[0039] The light collecting unit 81 includes a lens seat 811 and a light collecting lens group built in the lens seat 811. The light collecting lens group is used to collect the light emitted by the lower light source and then transmit it to the stage 5 through the aperture adjustment unit 82. The lens seat 811 is connected to the microscope body 1 and is provided with a dovetail ring perpendicular to the axis.

[0040] The aperture adjustment unit 82 includes an aperture seat 821, a rotating ring 822, an aperture 823 and a plurality of adjusting screws 83. The aperture seat 821 is coaxially sleeved on the lens seat 811. The adjusting screws 83 are circumferentially distributed and penetrate the aperture seat 821 and abut against the inclined surface of the dovetail ring. The inclined surface of the dovetail ring faces away from the aperture 823. The rotating ring 822 is rotatably connected to the aperture seat 821. The aperture 823 is installed on the aperture seat 821 and is driven to open and close by rotating the rotating ring 822. The center is adjusted by adjusting the adjusting screws 83.

[0041] The display unit 6 includes a display screen 63 electrically connected to the main board and used for displaying the position and brightness of the objective lens 4 in real time.

[0042] Among them, Figure 1 , with the objective lens positioning unit 3 located above the stage 5, the light collector 8 located below the stage 5 and mounted on the base of the microscope body 1, and the display unit 6 mounted just in front of the base of the microscope body 1. The objective lens converter of the objective lens positioning unit 3 can install multiple objective lenses 4 to achieve the switching of the objective lenses 4, the detection module 37 can detect the position signal of the objective lens 4, the main board is electrically connected to the detection module 37 to obtain the position signal of the objective lens 4, and the position of the objective lens 4 is memorized according to the obtained position signal, and the brightness information corresponding to the objective lens 4 at the current position is memorized at the same time (such as the brightness of the lower light source, or the brightness information of other light sources can also be obtained according to actual needs). It is easy to understand that the microscope body 1 is built-in with a lower light source, and the light of the light collector 8 comes from the lower light source, that is, the light emitted by the lower light source is sequentially converged to the stage 5 through the light collecting unit 81 and the aperture adjustment unit 82. Through the cooperation of the adjusting screw 83 and the dovetail ring, it is possible to ensure that the aperture image is adjusted to the center of the field of view, and to achieve quick disassembly and assembly. The aperture adjustment unit and the light collecting unit are designed separately and will not affect each other. Only the center of the two needs to be adjusted, which helps to ensure the imaging quality.

[0043] In one embodiment, the aperture adjustment unit 82 also includes a first fixing seat 824, a second fixing seat 825, a color filter 826 and a frosted glass 827. The first fixing seat 824 is threadedly connected to the aperture seat 821, the second fixing seat 825 is clamped with the first fixing seat 824, the frosted glass 827 is installed on the first fixing seat 824, and the color filter 826 is clamped and fixed to the first fixing seat 824 through the second fixing seat 825. The light passing through the light collecting unit 81 passes through the aperture 823, the frosted glass 827 and the color filter 826 in sequence to reach the stage 5.

[0044] Among them, the first fixing seat 824 has a plurality of slots 8241 distributed circumferentially, and the second fixing seat 825 has a plurality of buckles 8251 distributed circumferentially. The buckles 8251 are matched with the slots 8241 and rotated to form a snap connection, and can simultaneously press the color filter 826 placed on the first fixing seat 824, making it convenient to replace and disassemble the color filter 826, and will not affect the aperture center of the light collector 8, and no re-adjustment is required. The frosted glass 827 can make the outgoing light of the aperture 823 more uniform, and different color filters 826 can transmit light of different wavelengths to select the photosensitivity effect.

[0045] In one embodiment, the first fixing seat 824 is further provided with an escape groove 8242 for facilitating the removal of the second fixing seat 825. The escape groove 8242 may be an arc-shaped groove for convenient manual removal.

[0046] In one embodiment, the objective lens positioning unit 3 includes an outer turntable 31, a locking ring 32 and a fixed disk 36, the fixed disk 36 is connected to the microscope body 1, the outer turntable 31 is rotatably connected to the fixed disk 36 and is locked and fixed by the locking ring 32, the outer turntable 31 also has a plurality of objective lens mounting holes 35 for the built-in objective lens 4 evenly distributed in a circumferential direction, the detection module 37 includes a sensing module 34 and a plurality of magnetic groups, the magnetic group includes at least one magnetic column, the sensing module 34 includes a sensing seat 341 and a plurality of sensing poles 342 connected to each other, the sensing poles 342 are electrically connected to the main board and are connected to the fixed disk 36 through the sensing seat 341, each magnetic group is installed on the outer turntable 31 and corresponds to the objective lens 4 one by one, when the outer turntable 31 is rotated to switch the objective lens 4, each sensing pole realizes the position detection of the objective lens 4 by sensing the corresponding magnetic group.

[0047] Among them, in this embodiment, the outer turntable 31, the locking ring 32 and the fixed plate 36 are coaxial, and the fixed plate 36 is indirectly connected to the fixed plate 36 through the mounting joint 33. The outer turntable 31 is located below the fixed plate 36, and the locking ring 32 is sleeved outside the outer turntable 31 and the fixed plate 36 to facilitate the rotation of the outer turntable 31. There are five objective lenses 4, and the corresponding number of magnetic groups is also five, which are respectively recorded as magnetic group No. 1 371, magnetic group No. 2 372, magnetic group No. 373, magnetic group No. 4 374 and magnetic group No. 5 375. There are three inductive magnetic poles 342. The five magnetic groups can be identified by changing the number and arrangement of magnetic columns. Each magnetic group corresponds to an objective lens 4. For example, magnetic group No. 1 371, magnetic group No. 2 372 and magnetic group No. 5 375 are all single magnetic columns, and magnetic group No. 3 373 and magnetic group No. 4 374 are two magnetic columns. Each magnetic group has a different distribution. When the outer turntable 31 is rotated, the three inductive magnetic poles will sense the corresponding magnetic groups, and the sensed signals will be transmitted to the main board to realize the memory of the position and brightness of the objective lens 4.

[0048] In one embodiment, a positioning groove 311 is provided on the outer rotating disk 31 , and a positioning spring piece 361 is provided on the fixed disk 36 . When the outer rotating disk is rotated, the positioning spring piece 361 cooperates with the positioning groove 311 to limit the position.

[0049] Specifically, a positioning spring piece 361 is provided on the fixed disk 36, and a positioning bead is preferably provided on the positioning spring piece 361. When the outer turntable 31 is rotated, the positioning bead on the positioning spring piece 361 will form a clamping limit with the positioning groove 311. When the outer turntable 31 is rotated, when the corresponding induction magnetic pole 342 on the induction module 34 senses a signal, the returned low-level signal is recorded as 0; when the corresponding induction magnetic pole 342 does not sense a signal, the returned high-level signal is recorded as 1; according to this rule, the five magnetic groups are arranged in binary according to the high and low level signals that can be sensed. When rotating to different positions, the induction module 34 will sense the magnetic groups at different positions for binary encoding to identify the position of the objective lens 4 and send it to the mainboard for memory. Such encoding method is a contactless induction method, which can eliminate external dust and other interference generated by photoelectricity, and is also easy to install.

[0050] In one embodiment, the sensing magnetic pole 342 is a Hall sensor, or may be replaced by other position sensors known to those skilled in the art.

[0051] In one embodiment, the diaphragm 823 is provided with a handle 8231, the rotating ring 822 is provided with a first groove 8221, the diaphragm seat 821 is provided with a handle limiting groove 8211, the handle 8231 cooperates with the first groove 8221 and slidably cooperates with the handle limiting groove 8211, the diaphragm 823 is opened and closed by driving the handle 8231 to rotate by the rotating ring 822, and the rotation angle of the diaphragm 823 is limited by the handle limiting groove 8211. The diaphragm 823 is easy to adjust.

[0052] In one embodiment, a microscope with an adjustable field of view of a light collector and a brightness memory display further includes an upper light source 2 and an adjustment knob 7. The upper light source 2 is connected to a microscope body 1 via a flexible bracket. The adjustment knob 7 is fixed to the microscope body 1 and electrically connected to a main board. The brightness of the light emitted by the lower light source is adjusted by rotating the adjustment knob 7.

[0053] Among them, the direction of the upper light source 2 can be directly controlled by the flexible bracket to provide upper light sources at different angles for easy observation of slices. The flexible bracket can be a USB hose or other flexible brackets commonly used in the prior art.

[0054] In one embodiment, the display unit 6 also includes a display screen holder 61, a protective glass 62 and a mounting bracket 64, the mounting bracket 64 is connected to the microscope body 1, the display screen holder 61 is connected to the mounting bracket 64, the display screen 63 is installed on the display screen holder 61, and the protective glass 62 is installed on the display screen holder 61 and is used to protect the display screen 63.

[0055] Among them, the protective glass 62 is fixed to the display screen holder 61 by adhesive, and the display screen 63 is threadedly connected through the threaded hole on the display screen holder 61; the mounting bracket 64 is connected and fixed to the microscope body 1, and the display screen holder 61 is connected through the mounting hole on the mounting bracket 64, and the outer contour of the display screen holder 61 needs to be completely fitted with the microscope body 1. The display screen 63 is electrically connected to the main board for data transmission, so as to realize the real-time display of the position and brightness of the objective lens 4. The protective glass 62 plays a protective role, and preferably adopts brown glass, which has good wear resistance and transparency, so that the operator can observe the real-time parameters on the display screen 63 in real time. The display screen 63 can be an energy-saving display screen in the prior art, such as equipped with an ECO energy-saving mode, which automatically enters a dormant state when the user is not operating, saving energy consumption.

[0056] In one embodiment, the light collecting unit 81 also includes a spacer ring 813 and a pressure ring 814, and the light collecting lens group includes a first lens 812 and a second lens 815 arranged in sequence along the optical axis. The first lens 812, the second lens 815, the spacer ring 813 and the pressure ring 814 are all built into the lens seat 811, and the two ends of the spacer ring 813 respectively abut against the adjacent surfaces of the first lens 812 and the second lens 815, the other side of the first lens 812 abuts against the lens seat 811, and the other side of the second lens 815 abuts against the pressure ring 814, and the pressure ring 814 is threadedly connected to the lens seat 811.

[0057] Among them, the spacer is used to limit the distance between the lenses, the pressure ring is used to lock and fix the lenses, the first lens 812 is a concave-convex lens, and the second lens 815 is a plano-convex lens. The specific number and shape of the lenses can be adjusted according to actual needs. Correspondingly, the number, shape and distribution position of the spacer and pressure ring can also be adaptively adjusted.

[0058] Working principle:

[0059] Adjust the center position of the diaphragm of the light collector to ensure that the diaphragm image is centered. Switch the objective lens and adjust the corresponding brightness of the objective lens to ensure the imaging effect, memorize the position and brightness of the objective lens, and display the real-time parameters on the display unit. Specifically, when the user operates the microscope, the slice to be observed is clamped on the stage, and the observed slice is moved to the center of the field of view by moving the stage until it is clear; in actual operation, when the user turns the objective lens positioning unit to switch to objective lenses of different magnifications to observe the object to be measured, the detection module will convert the sensed magnetic signal into an electrical signal and transmit it to the main board. When the different positions are rotated, the electrical signals converted from the sensed different magnetic signals are memorized and saved through the main board, and the lighting brightness parameters required for the current objective lens magnification are memorized at the same time. When the user uses the microscope again, when the objective lens of different magnification is rotated, the lighting brightness will automatically adjust to the lighting parameters saved last time. If the brightness value after automatic adjustment needs to be adjusted, the brightness value can also be adjusted by manually adjusting the adjustment knob and the memory can be selectively updated. At the same time, if the center position of the field diaphragm is found to be deviated during observation, it can be adjusted through the adjustment screw on the light collector. When the user needs to add a color filter for observation, the color filter can be easily installed and removed through the clamping structure on the light collector without affecting the center of the light collector. At the same time, the display unit can display the current objective lens and lighting parameters in real time, which is convenient for observation and recording.

[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The above-described embodiments only express the more specific and detailed embodiments described in this application, but they cannot be understood as limiting the scope of the patent of this application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of this application, which all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be based on the attached claims.

Claims

1. A microscope with an adjustable field of view of a light collector and a brightness memory display, comprising a microscope body (1) and a stage (5), characterized in that: The microscope with an adjustable field of view of the light collector and a brightness memory display further comprises an objective lens positioning unit (3), a display unit (6) and a light collector (8), wherein the objective lens positioning unit (3), the stage (5), the display unit (6) and the light collector (8) are all connected to the microscope body (1), wherein: The microscope body (1) has a main board and a lower light source built in, and the lower light source is electrically connected to the main board; The objective lens positioning unit (3) comprises an objective lens converter and a detection module (37), the objective lens converter is connected to the microscope body (1), the detection module (37) is built into the objective lens converter and is used to detect the position signal of the objective lens (4) on the objective lens converter, and the main board memorizes the position and brightness of the objective lens (4) according to the acquired position signal; The light collector (8) comprises a light collecting unit (81) and an aperture adjustment unit (82), wherein: The light collecting unit (81) comprises a lens seat (811) and a light collecting lens group built into the lens seat (811), the light collecting lens group being used to collect light emitted by the lower light source and transmit the light to the stage (5) through the aperture adjustment unit (82), the lens seat (811) being connected to the microscope body (1) and provided with a dovetail ring perpendicular to the axis; The aperture adjustment unit (82) comprises an aperture seat (821), a rotating ring (822), an aperture (823) and a plurality of adjusting screws (83); the aperture seat (821) is coaxially sleeved on the lens seat (811); the adjusting screws (83) are circumferentially distributed and penetrate the aperture seat (821) and abut against the inclined surface of the dovetail ring; the inclined surface of the dovetail ring faces away from the aperture (823); the rotating ring (822) is rotatably connected to the aperture seat (821); the aperture (823) is mounted on the aperture seat (821) and is driven to open and close by rotating the rotating ring (822); and the center is adjusted by adjusting the adjusting screws (83); The display unit (6) comprises a display screen (63) electrically connected to the main board and used for displaying the position and brightness of the objective lens (4) in real time.

2. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 1, characterized in that: The aperture adjustment unit (82) further comprises a first fixing seat (824), a second fixing seat (825), a color filter (826) and a frosted glass (827); the first fixing seat (824) is threadedly connected to the aperture seat (821); the second fixing seat (825) is snap-fitted to the first fixing seat (824); the frosted glass (827) is mounted on the first fixing seat (824); the color filter (826) is clamped and fixed to the first fixing seat (824) by the second fixing seat (825); and the light passing through the light collecting unit (81) sequentially passes through the aperture (823), the frosted glass (827) and the color filter (826) to reach the stage (5).

3. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 2, characterized in that: The first fixing seat (824) is also provided with an avoidance groove (8242) for facilitating the disassembly of the second fixing seat (825).

4. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 1, characterized in that: The objective lens positioning unit (3) comprises an outer rotating disk (31), a locking ring (32) and a fixed disk (36); the fixed disk (36) is connected to the microscope body (1); the outer rotating disk (31) is rotationally connected to the fixed disk (36) and is locked and fixed by the locking ring (32); the outer rotating disk (31) also has a plurality of objective lens mounting holes (35) uniformly distributed in the circumferential direction for housing the objective lens (4); the detection module (37) comprises a sensing module (34) and a plurality of magnetic groups; the magnetic group comprises at least one magnetic The sensing module (34) comprises a sensing seat (341) and a plurality of sensing magnetic poles (342) which are connected to each other. The sensing magnetic poles (342) are electrically connected to the main board and connected to the fixed disk (36) through the sensing seat (341). Each magnetic group is mounted on the outer rotating disk (31) and corresponds to the objective lens (4) one by one. When the outer rotating disk (31) is rotated to switch the objective lens (4), each sensing magnetic pole realizes position detection of the objective lens (4) by sensing the corresponding magnetic group.

5. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 4, characterized in that: The outer rotating disk (31) is provided with a positioning groove (311), and the fixed disk (36) is provided with a positioning spring piece (361). When the outer rotating disk is rotated, the positioning spring piece (361) cooperates with the positioning groove (311) to limit the position.

6. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 4, characterized in that: The inductive magnetic pole (342) is a Hall sensor.

7. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 1, characterized in that: The diaphragm (823) is provided with a handle rod (8231), the rotating ring (822) is provided with a first groove (8221), and the diaphragm seat (821) is provided with a handle rod limiting groove (8211). The handle rod (8231) cooperates with the first groove (8221) and slidably cooperates with the handle rod limiting groove (8211). The rotating ring (822) drives the handle rod (8231) to rotate to realize the opening and closing of the diaphragm (823), and the rotation angle of the diaphragm (823) is limited by the handle rod limiting groove (8211).

8. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 1, characterized in that: The microscope with both an adjustable field of view of the light collector and a brightness memory display further comprises an upper light source (2) and an adjustment knob (7); the upper light source (2) is connected to the microscope body (1) via a flexible bracket; the adjustment knob (7) is fixed to the microscope body (1) and electrically connected to the main board; the brightness of the light emitted by the lower light source is adjusted by rotating the adjustment knob (7).

9. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 1, characterized in that: The display unit (6) further comprises a display screen seat (61), a protective glass (62) and a mounting bracket (64); the mounting bracket (64) is connected to the microscope body (1); the display screen seat (61) is connected to the mounting bracket (64); the display screen (63) is mounted on the display screen seat (61); and the protective glass (62) is mounted on the display screen seat (61) and is used to protect the display screen (63).

10. The microscope with adjustable field of view of the light collector and brightness memory display as claimed in claim 1, characterized in that: The light collecting unit (81) further comprises a spacer (813) and a pressure ring (814); the light collecting lens group comprises a first lens (812) and a second lens (815) which are sequentially arranged along the optical axis; the first lens (812), the second lens (815), the spacer (813) and the pressure ring (814) are all built into the lens seat (811); two ends of the spacer (813) respectively abut against adjacent surfaces of the first lens (812) and the second lens (815); the other surface of the first lens (812) abuts against the lens seat (811); the other surface of the second lens (815) abuts against the pressure ring (814); and the pressure ring (814) is threadedly connected to the lens seat (811).

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