Microscope light splitting adjustment device

Abstract

The utility model discloses a microscope light splitting adjustment device, which is applied to a microscope, the microscope comprises a microscope main body and an eyepiece, the microscope light splitting adjustment device comprises a light splitting unit, a lens and a digital imaging unit, the prism table is connected with the microscope main body and can move and adjust along an X axis and a Y axis, the beam splitter prism is arranged in the prism table and is used for dividing light reflected by an observation sample into two paths, one path is transmitted to the eyepiece, and the other path is transmitted to the digital imaging unit after passing through the lens; the lens is connected with the prism table; and the digital imaging unit comprises a digital imaging chip, and the center of the digital imaging chip is coaxial with the optical axis of the lens. According to the device, the digital imaging unit and the observation part are integrated, multi-degree-of-freedom adjustment is realized, the installation precision can be ensured, the detection accuracy of the microscope is greatly improved, and the installation and adjustment are more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to microscope technical field, concretely relates to a microscope light splitting adjustment device. BACKGROUND

[0002] Since the microscope was born, it has experienced a long evolution and technological innovation, from the initial simple single-tube monocular biological microscope to the current digital microscope. In this process, in addition to meeting the eyepiece observation, in order to realize the digital imaging function, it is necessary to increase the light splitting prism structure in the microscope observation component. The light splitting prism can divide the light emitted from the light source into two parts, one part is given to the eyepiece, and the other part is projected onto the photosensitive element of the digital imaging module. The digital imaging module converts the received optical signal into a digital signal and transmits it to the next imaging component, such as a display screen, a computer, etc. The observation component in the prior art is independent of the digital imaging module, and as two components, it has the following defects: each time the microscope is used, it needs to install more external components (such as a camera with a digital imaging module), which is inconvenient, and because different users have different installation accuracies, the accuracy is also reduced due to processing and assembly errors, which makes adjustment inconvenient, and after being disassembled and assembled several times, the accuracy between the observation component and the digital imaging module is further reduced, which affects the observation and use of the instrument. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at the above problems, and provides a microscope light splitting adjustment device, which integrates the digital imaging unit and the observation component, realizes multi-degree-of-freedom adjustment, ensures installation accuracy, greatly improves the accuracy of microscope detection, and is more convenient to install and adjust.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a microscope light splitting adjustment device, which is applied to a microscope, and the microscope includes a microscope main body and an eyepiece. The microscope light splitting adjustment device includes a light splitting unit, a lens, and a digital imaging unit, wherein:

[0006] The light splitting unit includes a prism seat and a light splitting prism. The prism seat is connected with the microscope main body and can move and adjust along the X-axis and the Y-axis. The light splitting prism is installed on the prism seat and is used to divide the light reflected by the observed sample into two paths, one of which is transmitted to the eyepiece, and the other of which is transmitted to the digital imaging unit after passing through the lens.

[0007] The lens is connected with the prism seat.

[0008] The digital imaging unit includes a digital imaging chip, and the center of the digital imaging chip is coaxial with the optical axis of the lens.

[0009] Preferably, the light splitting unit further comprises a first adjusting unit and a second adjusting unit, the first adjusting unit is installed on the prism seat and used for adjusting the rotation angle of the light splitting prism around the Y axis and the Z axis, and the second adjusting unit is installed on the prism seat and used for adjusting the rotation angle of the prism seat around the X axis and the Y axis, so that the rotation angle of the light splitting prism and the lens around the X axis and the Y axis is adjusted.

[0010] Preferably, the first adjusting unit and the second adjusting unit each comprise a plurality of locking screws, the locking screws of the first adjusting unit are arranged through the prism seat and abut against the light splitting prism, and the locking screws of the second adjusting unit are arranged through the prism seat and abut against the microscope main body.

[0011] Preferably, the light splitting unit further comprises two pressing plates, the light splitting prism is arranged in the prism seat, the two pressing plates are arranged between the light splitting prism and the prism seat and oppositely, and the locking screws of the first adjusting unit are arranged through the prism seat and abut against the pressing plates.

[0012] Preferably, the light splitting unit further comprises a plurality of first screws, a plurality of first through holes are formed in the upper wall of the prism seat, the first screws are arranged through the first through holes one by one and connected with the microscope main body, and the diameter of the first through hole is greater than the diameter of the first screw.

[0013] Preferably, the digital imaging unit further comprises a fixing seat and a plurality of second screws, a plurality of waist-shaped holes are formed in the fixing seat, the second screws are arranged through the waist-shaped holes one by one and connected with the microscope main body, and the waist-shaped holes are parallel to the optical axis direction of the lens.

[0014] Preferably, the digital imaging unit further comprises a plurality of third screws and a plurality of spacer columns which are arranged one by one and connected with the fixing seat.

[0015] Preferably, the light splitting unit, the lens and the digital imaging unit are arranged in the microscope main body.

[0016] Preferably, the digital imaging chip is a CMOS image sensor.

[0017] Preferably, the lens comprises a lens barrel and a plurality of lens groups arranged in the lens barrel, the lens barrel is connected with the prism seat, and the lens groups are coaxially arranged and each comprises at least one lens.

[0018] Compared with the prior art, the light splitting unit has the following beneficial effects:

[0019] The device comprises a light splitting unit, a lens and a digital imaging unit, through multi-degree of freedom adjustment of the light splitting prism, the lens and the digital imaging chip, installation precision can be ensured, and the accuracy of microscope detection is greatly improved, specifically, the light splitting prism and the lens can be driven to move along the X axis and the Y axis by the prism seat adjustment to realize centering with the digital imaging unit 3, and the light splitting prism can also be adjusted in rotation angle around the Y axis and the Z axis by the first adjusting unit, the prism seat is adjusted in rotation angle around the X axis and the Y axis by the second adjusting unit, so that the light splitting prism and the lens are adjusted in rotation angle around the X axis and the Y axis, the digital imaging chip 32 is driven to move along the optical axis direction of the lens 2 by the adjusting fixed seat 31, so that accurate focusing is realized, which helps to ensure the imaging quality, the digital imaging unit and the observation part are integrated, the digital imaging unit does not need to be disassembled, installation and adjustment are more convenient, and the light splitting prism assembly and adjustment are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a sectional view of the microscope light splitting adjustment device of the utility model;

[0021] Figure 2 It is an explosion view of the microscope light splitting adjustment device of the utility model.

[0022] Mark explanation: 1, light splitting unit;2, lens;3, digital imaging unit;11, prism seat;12, light splitting prism;13, pressing sheet;14, first adjusting unit;15, first screw;16, second adjusting unit;21, lens barrel;22, first mirror group;23, second mirror group;31, fixed seat;32, digital imaging chip;33, second screw;34, third screw;35, spacer column. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] It should be noted that when a component is referred to as being "connected" with another component, it can be directly connected with the other component or there can be a middle component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the specification herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0025] As Figures 1-2As shown, a microscope spectral adjustment device is used in a microscope. The microscope includes a microscope body and an eyepiece. The microscope spectral adjustment device includes a spectral unit 1, a lens 2, and a digital imaging unit 3, wherein:

[0026] The beam splitting unit 1 includes a prism mount 11 and a beam splitting prism 12. The prism mount 11 is connected to the microscope body and can be moved and adjusted along the X-axis and Y-axis. The beam splitting prism 12 is mounted on the prism mount 11 and is used to split the light reflected from the observed sample into two paths, one path is transmitted to the eyepiece, and the other path is transmitted to the digital imaging unit 3 after passing through the lens 2.

[0027] Lens 2 is connected to prism mount 11;

[0028] The digital imaging unit 3 includes a digital imaging chip 32, the center of which is coaxial with the optical axis of the lens 2.

[0029] For ease of understanding, the direction in which the microscope faces the human body is the front-back direction, i.e., the Y-axis direction; the up-down direction is the Z-axis direction; and the left-right direction is the X-axis direction.

[0030] Specifically, such as Figure 1 As shown, the device includes a beam splitting unit 1, a lens 2, and a digital imaging unit 3. The light reflected from the sample is split into two paths by the beam splitter prism 12. One path is transmitted to the eyepiece, and the other is refracted through the lens 2 and projected onto the digital imaging unit 3. The photosensitive element on the digital imaging chip 32 receives the optical signal and performs signal conversion to form an image. The lens 2 can be an existing structure or designed according to actual needs; for example, the lens 2 between the beam splitter prism 12 and the digital imaging unit 3 can have one or more lens groups. The digital imaging unit 3 can also be connected to a display screen for image display. The beam splitter prism 12 can be mounted above the objective lens of the microscope, with the lens 2 and digital imaging unit 3 located behind the beam splitter prism 12.

[0031] like Figure 2 As shown, the beam splitter 12 is placed inside the beam splitter 11. The beam splitter 11 can be of any shape, such as including a shell and a mounting base connected to each other. The mounting base has a second through hole, and the shell has a third through hole. The axes of the second and third through holes are perpendicular to each other. The light reflected from the sample is transmitted to the beam splitter 12 and split into two paths. One part is transmitted to the eyepiece through the second through hole, and the other part is refracted and sequentially transmitted through the third through hole and the lens 2 to be projected onto the digital imaging unit 3. The beam splitter 11 has a thread at the rear, which connects to the lens 2. The beam splitter 11 is connected to the microscope body and can drive the lens 2 to move and adjust relative to the digital imaging unit 3 along the X and Y axes. The digital imaging chip 32 is perpendicular to the optical axis of the lens 2, that is, ensuring that the center of the digital imaging chip 32 coincides with the optical axis of the lens 2.

[0032] In an embodiment, the light splitting unit 1 further comprises a first adjusting unit 14 and a second adjusting unit 16, the first adjusting unit 14 is installed on the prism seat 11 and used for adjusting the rotation angle of the light splitting prism 12 around the Y axis and the Z axis, the second adjusting unit 16 is installed on the prism seat 11 and used for adjusting the rotation angle of the prism seat 11 around the X axis and the Y axis, so as to realize the rotation angle adjustment of the light splitting prism 12 and the lens 2 around the X axis and the Y axis. Through the multi-degree-of-freedom adjustment, the installation precision can be ensured, and the accuracy of the microscope detection is improved.

[0033] In an embodiment, the first adjusting unit 14 and the second adjusting unit 16 each comprise a plurality of locking screws, the locking screws of the first adjusting unit 14 are arranged on the prism seat 11 and abut against the light splitting prism 12, and the locking screws of the second adjusting unit 16 are arranged on the prism seat 11 and abut against the microscope body. Each adjusting unit comprises four arrayed locking screws, for example, in the form of two rows and two columns. The locking screws of the first adjusting unit 14 are arranged on the shell of the prism seat 11, and the locking screws of the second adjusting unit 16 are arranged on the mounting seat of the prism seat 11.

[0034] In an embodiment, the light splitting unit 1 further comprises two pressing plates 13, the light splitting prism 12 is built in the prism seat 11, the two pressing plates 13 are located between the light splitting prism 12 and the prism seat 11 and oppositely arranged, and the locking screws of the first adjusting unit 14 are arranged on the prism seat 11 and abut against the pressing plates 13. The left and right sides of the light splitting prism 12 are padded with the pressing plates 13, for example, copper plates, the locking screws of the first adjusting unit 14 are arranged on the prism seat 11 and abut against the pressing plates 13, so as to fix the light splitting prism 12 on the prism seat 11, and avoid damaging the light splitting prism 12.

[0035] In an embodiment, the light splitting unit 1 further comprises a plurality of first screws 15, the upper wall of the prism seat 11 is provided with a plurality of first through holes, the first screws 15 are correspondingly arranged in the first through holes and connected with the microscope body, and the diameter of the first through hole is greater than the diameter of the first screw 15. For example, the first screws 15 are arranged on the mounting seat of the prism seat 11, the X axis and the Y axis movement adjustment of the prism seat 11 can be realized by loosening the first screws 15, and the centering with the digital imaging unit 3 is realized.

[0036] In an embodiment, the digital imaging unit 3 further comprises a fixing seat 31 and a plurality of second screws 33, the fixing seat 31 is provided with a plurality of waist-shaped holes, the second screws 33 are correspondingly arranged in the waist-shaped holes and connected with the microscope body, and the waist-shaped holes are parallel to the optical axis direction of the lens 2. The movement adjustment of the digital imaging chip 32 along the optical axis direction of the lens 2 can be realized by loosening the second screws 33, so as to realize accurate focusing, and the imaging quality is improved.

[0037] In an embodiment, the digital imaging unit 3 further comprises a plurality of third screws 34 and a plurality of pads 35, the third screws 34 are sequentially arranged through the digital imaging chip 32 and the pads 35 and connected with the fixing seat 31. The digital imaging chip 32 is locked on the fixing seat 31 through the two third screws 34 passing through the pads 35.

[0038] In an embodiment, the light splitting unit 1, the lens 2 and the digital imaging unit 3 are all built-in the microscope main body.

[0039] In an embodiment, the digital imaging chip 32 is a CMOS image sensor. The digital imaging chip 32 can use a COMS image sensor, such as 8 million pixels, 1 / 1.8 inch target surface and other options, and the person skilled in the art can adjust according to the actual needs.

[0040] In an embodiment, the lens 2 comprises a lens barrel 21 and a plurality of lens groups built-in the lens barrel 21, the lens barrel 21 is connected with the prism seat 11, the lens groups are coaxially arranged and each comprises at least one lens. As shown in the figure, the lens 2 in the embodiment comprises a first lens group 22 and a second lens group 23 arranged along the optical axis direction in sequence, each lens group comprises two lenses, and the lens group can be fixed by a spacer and a compression ring when assembled in the lens barrel 21. Figure 2

[0041] Working principle:

[0042] When assembling and adjusting, the first screw 15 is loosened to adjust the X-axis and Y-axis movement of the prism seat 11 (i.e. adjust the movement in the front and back and left and right directions), realize the centering with the digital imaging unit 3, and loosen the second screw 33 to realize the movement adjustment of the fixing seat 31 driving the digital imaging chip 32 along the optical axis direction of the lens 2 (i.e. the movement adjustment along the front and back directions), so as to realize accurate focusing and help to ensure the imaging quality. Adjusting the locking screw of the first adjusting unit 14 can adjust the rotation angle of the light splitting prism 12 around the Y-axis and the Z-axis, and adjusting the locking screw of the second adjusting unit 16 can adjust the rotation angle of the prism seat 11 around the X-axis and the Y-axis, so as to realize the rotation angle adjustment of the light splitting prism 12 and the lens 2 around the X-axis and the Y-axis. Through the multi-degree-of-freedom adjustment, the installation precision can be ensured and the accuracy of the microscope detection can be improved.

[0043] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0044] ​The above described embodiments only express the more specific and detailed embodiments of the present application, but are not construed as limiting the scope of the application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A microscope spectroscope adjustment device applied to a microscope, the microscope comprising a microscope main body and an ocular, characterized in that: The microscope light splitting adjusting device comprises a light splitting unit (1), a lens (2) and a digital imaging unit (3), wherein: The light splitting unit (1) comprises a prism seat (11) and a light splitting prism (12), the prism seat (11) is connected with the microscope main body and can be moved and adjusted along the X axis and the Y axis, the light splitting prism (12) is installed on the prism seat (11) and is used for splitting the light reflected by the observed sample into two paths, one path is transmitted to the eyepiece, and the other path is transmitted to the digital imaging unit (3) after passing through the lens (2); The lens (2) is connected with the prism seat (11); The digital imaging unit (3) comprises a digital imaging chip (32), the center of the digital imaging chip (32) is coaxial with the optical axis of the lens (2).

2. The microscope spectroscopic adjustment apparatus of claim 1, wherein: The light splitting unit (1) further comprises a first adjusting unit (14) and a second adjusting unit (16), the first adjusting unit (14) is installed on the prism seat (11) and is used for adjusting the rotation angle of the light splitting prism (12) around the Y axis and the Z axis, the second adjusting unit (16) is installed on the prism seat (11) and is used for adjusting the rotation angle of the prism seat (11) around the X axis and the Y axis, so as to realize the rotation angle adjustment of the light splitting prism (12) and the lens (2) around the X axis and the Y axis.

3. The microscope spectroscopic adjustment apparatus of claim 2, wherein: The first adjusting unit (14) and the second adjusting unit (16) each comprise a plurality of locking screws, the locking screws of the first adjusting unit (14) are arranged on the prism seat (11) and abut against the light splitting prism (12), and the locking screws of the second adjusting unit (16) are arranged on the prism seat (11) and abut against the microscope main body.

4. The microscope spectroscopic adjustment apparatus of claim 3, wherein: The light splitting unit (1) further comprises two pressing plates (13), the light splitting prism (12) is built in the prism seat (11), the two pressing plates (13) are located between the light splitting prism (12) and the prism seat (11) and are oppositely arranged, and the locking screws of the first adjusting unit (14) are arranged on the prism seat (11) and abut against the pressing plates (13).

5. The microscope spectroscopic adjustment apparatus of claim 1, wherein: The light splitting unit (1) further comprises a plurality of first screws (15), a plurality of first through holes are formed in the upper wall of the prism seat (11), the first screws (15) are arranged in the first through holes one by one and connected with the microscope main body, and the diameter of the first through holes is greater than the diameter of the first screws (15).

6. The microscope spectroscopic adjustment apparatus of claim 1, wherein: The digital imaging unit (3) further comprises a fixing seat (31) and a plurality of second screws (33), a plurality of waist-shaped holes are formed in the fixing seat (31), the second screws (33) are arranged in the waist-shaped holes one by one and connected with the microscope main body, and the waist-shaped holes are parallel to the direction of the optical axis of the lens (2).

7. The microscope spectroscopic adjustment apparatus of claim 6, wherein: The digital imaging unit (3) further comprises a plurality of third screws (34) and a plurality of spacer columns (35) corresponding one by one, the third screws (34) are arranged in the digital imaging chip (32) and the spacer columns (35) in sequence and connected with the fixing seat (31).

8. The microscope spectroscopic adjustment apparatus of claim 1, wherein: The light splitting unit (1), the lens (2) and the digital imaging unit (3) are all built in the microscope main body.

9. The microscope spectroscopic adjustment apparatus of claim 1, wherein: The digital imaging chip (32) is a CMOS image sensor.

10. The microscope spectroscopic adjustment apparatus of claim 1, wherein: The lens (2) comprises a lens barrel (21) and a plurality of lens groups built in the lens barrel (21), the lens barrel (21) is connected with the prism seat (11), and the lens groups are coaxially arranged and comprise at least one lens.

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