A polarized light microscope and a portable polarized light microscope system

Abstract

This application provides a polarizing microscope and a portable polarizing microscope system. The polarizing microscope includes: a microscope column; a main body, cylindrical and fixed to the microscope column, with a cavity inside the main body, and a first waterproof ring nested on the outer peripheral wall of the lower part of the main body; an optical system fixed inside the cavity; a stage, disposed on the microscope column and capable of moving up and down along the microscope column, with a stop block provided around the periphery of the cavity opening of the stage; a sample introduction device disposed on the stage; a sleeve, fitted onto the lower part of the main body and tightly fitted with the first waterproof ring, the sleeve being able to rotate and move axially relative to the main body so that the lower end of the sleeve can tightly abut against the sample introduction device; and a waterproof outer shell, fitted onto the sleeve and capable of moving axially relative to the sleeve, the lower outer periphery of the waterproof outer shell having a protruding ridge, the protruding ridge cooperating with the stop block to limit the waterproof outer shell on the stage. This application is small in size and light in weight, making it easy to carry; the sealed design achieves moisture-proof and dust-proof effects, extending its service life.

Description

Technical Field

[0001] This application belongs to the field of optical instrument technology, and in particular relates to a polarizing microscope and a portable polarizing microscope system. Background Technology

[0002] A microscope is an optical instrument primarily used to magnify and observe tiny objects or structures that are difficult to distinguish with the naked eye. Among them, a polarizing microscope is an optical microscope that utilizes the properties of polarized light, specifically designed to study materials with optical anisotropy. By integrating polarizers into the microscope to convert light into polarized light for imaging, a polarizing microscope can be used to analyze the properties of birefringent materials. Depending on different research needs, it can perform single-polarized light observation, crossed-polarized light observation, and conic light observation, and is widely used in fields such as liquid crystal research, materials science, geology, biology, pharmaceuticals, optical research, and industrial inspection. It plays a particularly important role in liquid crystal optical devices, mineral analysis, drug crystallization research, fiber analysis, and stress detection.

[0003] Depending on the illumination method, polarizing microscopes can be divided into two categories: reflective and transmissive. Reflective polarizing microscopes are mainly used to observe opaque samples (such as metals and ores) and analyze their surface structure by analyzing reflected light; while transmissive polarizing microscopes are suitable for transparent samples (such as biological sections and mineral slices) and are better suited for observing their internal structure. In liquid crystal material research, transmissive polarizing microscopes are more widely used.

[0004] Compared to a regular microscope, the core difference of a polarizing microscope is the addition of a pair of linear polarizers. The main mechanism is that the light emitted from the light source first passes through the first linear polarizer (i.e., the polarizer), becoming plane-polarized light with a fixed vibration direction. Then, it passes through the anisotropic sample region, where birefringence occurs. The light after passing through the sample then passes through the analyzer, finally producing an optical image. At least one of the polarizer and analyzer is rotatable. When their transmission axes are parallel, the transmitted light is strongest; when their transmission axes are orthogonal (perpendicular), complete extinction occurs, and the field of view appears black. This orthogonal polarization configuration is commonly used in the research and analysis of liquid crystal materials.

[0005] However, most existing polarizing microscopes are large-scale laboratory equipment. Although they are highly accurate and sensitive, their large size and weight limit their application in in-situ detection. Moreover, the purity of samples cannot be guaranteed when working in the field. Utility Model Content

[0006] In view of the above-mentioned technical problems existing in the prior art, the present application provides a small polarizing microscope and a portable polarizing microscope system that can avoid human factors and environmental interference to the sample to be tested.

[0007] The technical solution adopted in this application embodiment is: a polarizing microscope, comprising:

[0008] Mirror column;

[0009] The main body is columnar and fixed to the mirror column. The main body has a cavity extending through both ends along its axial direction. A first waterproof ring is nested on the outer peripheral wall of the lower part of the main body.

[0010] An optical system, which is fixed within the cavity;

[0011] A stage is provided on the mirror pillar and located below the main body. The stage can be raised and lowered along the mirror pillar. The stage has a loading cavity formed by a downward indentation from its top. A stop block is provided around the periphery of the opening of the loading cavity.

[0012] A sample introduction device is disposed on the sample stage;

[0013] A sleeve is fitted onto the lower part of the main body. The inner wall of the sleeve is tightly fitted with the first waterproof ring. The sleeve can rotate relative to the main body and can move along the axial direction of the main body so that the lower end of the sleeve can be tightly attached to the upper surface of the sample injection device.

[0014] A waterproof housing is fitted over the sleeve and is movable relative to the sleeve in the axial direction of the main body. The outer periphery of the lower end of the waterproof housing has a protruding ridge, which can be stopped by the stop block so that the waterproof housing is limited to the platform.

[0015] In an optional embodiment, the polarizing microscope further includes an upper cover plate and a second waterproof ring. The upper cover plate is disposed on the upper end face of the main body and is used to cover the upper port of the chamber. The second waterproof ring is disposed between the upper cover plate and the upper end face of the main body and is used to seal the two together.

[0016] In an optional embodiment, silicone grease is applied between the lower part of the body and the sleeve to form a first sealing and waterproof layer, and to increase the friction between the body and the sleeve; and / or

[0017] Silicone grease is applied between the sleeve and the waterproof outer shell to form a second sealing and waterproof layer, and to increase the friction between the sleeve and the waterproof outer shell.

[0018] In an optional embodiment, the optical system includes a CCD camera, a lens barrel, an analyzer, a polarizer, and an LED light. The CCD camera is fixed to the upper end of the cavity by a fixing sleeve. The lens barrel is located below the CCD camera and connected to it. The analyzer is located inside the bottom end of the sleeve. The polarizer is located at the top of the cavity formed by the upward indentation of the bottom of the stage. The LED light is located inside the cavity and below the polarizer. The LED light, the polarizer, and the analyzer work together to form a polarized light path.

[0019] In an optional embodiment, the mirror post includes a vertical support portion and a clamp disposed at the top of the vertical support portion, the clamp being used to clamp the main body to fix the main body to the mirror post; and / or

[0020] The polarizing microscope also includes a lifting device. The stage is mounted on the lifting device and located below the main body. The lifting device is mounted on the vertical support and is used to move the stage up and down so that the stage moves closer to or away from the lower end of the sleeve.

[0021] In an optional embodiment, the lifting device includes a guide component, a lifting block, and an adjusting rod. The guide component is fixed to the vertical support and has a guide rod extending vertically. The guide rod passes through the lifting block, and the lifting block has a threaded hole extending vertically. The adjusting rod has an external thread and passes through the threaded hole to be threadedly connected to the lifting block. When the adjusting rod is rotated, the lifting block can be driven to move up and down along the guide rod.

[0022] The platform is fixed to the periphery of the lifting block and can move up and down with the lifting block.

[0023] A portable polarizing microscope system, comprising:

[0024] Base;

[0025] In any of the above embodiments, the polarizing microscope's column is fixed to the base;

[0026] A data processing and display device is mounted on the base and connected to the optical system of the polarizing microscope, for processing and displaying the optical information captured by the optical system.

[0027] In an optional embodiment, the data processing and display device includes an industrial computer and a battery pack; the battery pack includes a lithium battery, a waterproof housing, and a waterproof plug; the waterproof housing is fixed to the base; the lithium battery is detachably disposed inside the waterproof housing; the waterproof housing has a lead hole for leading out a power supply line; the power supply line is connected to the industrial computer for supplying power to the industrial computer; the waterproof plug is disposed on the lead hole and wraps around the power supply line.

[0028] In an optional embodiment, the industrial computer includes a housing, an all-in-one machine, and a cover plate. The housing includes a front panel and a rear sealing plate. The rear sealing plate is fastened to the rear side of the front panel and forms a cavity with the front panel. The all-in-one machine is disposed in the cavity, and a third waterproof ring is provided between the display panel of the all-in-one machine and the rear side of the front panel.

[0029] The lower back of the all-in-one machine is equipped with a power switch, a Bluetooth module, and a waterproof cable tray. The power switch, Bluetooth module, and waterproof cable tray are covered by the cover plate, and a fourth waterproof ring is provided between the cover plate and the lower back of the all-in-one machine.

[0030] In an optional embodiment, the industrial computer further includes a support arm, the bottom of which is fixed to the base, and a support member is provided at the top of the support arm. The rear cover of the industrial computer is detachably mounted on the support member; and / or

[0031] The base includes a base plate and rubber feet installed at the bottom of the base plate.

[0032] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: the polarizing microscope of this application is small in size and light in weight, making it easy to carry; by adopting a sealed design, it can achieve the effects of moisture-proof and dust-proof, ensuring that the core components of the polarizing microscope are not affected by external field factors, thus extending its service life.

[0033] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this application.

[0034] The overview of various implementations or examples of the technology described in this application is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0035] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0036] Figure 1 This is a perspective view of a polarizing microscope according to an embodiment of this application.

[0037] Figure 2 This is an exploded view of a polarizing microscope according to an embodiment of this application.

[0038] Figure 3 This is a schematic diagram of the image acquisition system and the stage installed together according to an embodiment of this application.

[0039] Figure 4 for Figure 3 Sectional view along line AA.

[0040] Figure 5 for Figure 4 Enlarged view of section B.

[0041] Figure 6 This is a schematic diagram of the waterproof outer shell and the stage after separation in an embodiment of this application.

[0042] Figure 7 This is a three-dimensional structural diagram of a portable polarizing microscope system according to an embodiment of this application.

[0043] Figure 8 This is an exploded view of the industrial control computer according to an embodiment of this application.

[0044] Figure 9 This is an exploded view of the battery pack according to an embodiment of this application.

[0045] Figure 10 This is an image showing the polarizer and analyzer parallel to each other in an embodiment of this application.

[0046] Figure 11 This is a polarized light image when the polarizer and analyzer are orthogonal according to an embodiment of this application.

[0047] Figure 12 The polarized image of the liquid crystal sensor chip after adding 20 μM SDS solution to the sample introduction device of this application embodiment.

[0048] Figure label:

[0049] 1-Mirror column; 11-Vertical support; 12-Clamp;

[0050] 2-Image acquisition system; 21-Main body; 211-Cavity; 212-Annular groove; 22-First waterproof ring; 23-Optical system; 231-CCD camera; 232-Lens barrel; 233-Analyzer; 234-Polarizer; 235-LED light; 236-Fixing sleeve; 24-Sleeve; 241-Annular stop; 25-Waterproof outer shell; 251-Protruding ridge; 252-Notch; 26-Top cover plate; 27-Second waterproof ring;

[0051] 3-Stage; 31-Stop block;

[0052] 4-Sample introduction device;

[0053] 5-Lifting device; 51-Guide component; 511-Guide rod; 52-Lifting block; 53-Adjusting rod; 54-Knob;

[0054] 6-Base; 61-Base plate; 62-Rubber feet;

[0055] 7-Industrial PC; 71-House; 711-Front Panel; 712-Rear Cover Plate; 72-All-in-One PC; 721-Power Switch; 722-Bluetooth Module; 723-Waterproof Cable Management Board; 724-Cover Plate; 73-Third Waterproof Ring; 74-Fourth Waterproof Ring; 8-Support Arm; 81-Support Component; 9-Battery Pack; 91-Waterproof Housing; 911-Lead Hole; 92-Lithium Battery. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.

[0057] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0058] To keep the following description of the embodiments of this application clear and concise, detailed descriptions of known functions and known components are omitted.

[0059] This application provides a polarizing microscope. For example... Figure 1 and Figure 2 As shown, the polarizing microscope includes a column 1, an image acquisition system 2, a stage 3, and a sample loading device 4. The image acquisition system 2 includes a main body 21, an optical system 23, a sleeve 24, and a waterproof housing 25. The main body 21 is columnar and fixed to the column 1, with its axis approximately vertical. A chamber 211 extending through both ends of the main body 21 is provided along its axial direction, and a first waterproof ring 22 is nested on the lower outer peripheral wall of the main body 21. The optical system 23 is fixed within the chamber 211. The stage 3 is located on the column 1 below the main body 21 and directly opposite the lower end of the main body 21. The stage 3 can be raised and lowered along the column 1, allowing it to move closer to or further away from the main body 21. The stage 3 has a recessed cavity formed by a downward indentation at its top, with the cavity opening facing upwards (towards the main body 21), and a stop block 31 is provided around the cavity opening. The sample injection device 4 is mounted on the stage 3 and is capable of automatic sample injection (this part is prior art). A sleeve 24 is fitted onto the lower part of the main body 21. The inner wall of the sleeve 24 is tightly fitted with the first waterproof ring 22, and the sleeve 24 can rotate relative to the main body 21 and move axially along the main body 21 so that the lower end of the sleeve 24 can tightly abut against the upper surface of the sample injection device 4. A waterproof outer shell 25 is fitted onto the sleeve 24 and can move relative to the sleeve 24 in the axial direction of the main body 21. The outer periphery of the lower end of the waterproof outer shell 25 has a protruding rib 251, which can be stopped by a stop block 31, so that the waterproof outer shell 25 is limited on the stage 3.

[0060] The polarizing microscope of this embodiment has a simple structure, small size, light weight, and is easy to assemble and use. Furthermore, by adding a sleeve 24 and a waterproof shell 25 to the outside of the main body 21, the internal optical system 23 can be effectively protected, preventing moisture and dust from corroding and interfering with the optical components. The first waterproof ring 22 between the sleeve 24 and the main body 21 achieves moisture and dust protection, extending its service life. The waterproof shell 25 not only protects the sleeve 24 and the main body 21, but it can also be constrained on the stage 3 by the protrusion 251, ensuring that the bottom end of the sleeve 24 is in close contact with the sample loading device 4 on the stage 3. This keeps the image acquisition system 2 of the polarizing microscope in a fully sealed state during operation, ensuring that the core components of the polarizing microscope are not affected by external factors. Combined with the automatic sample loading device 4, it can prevent the sample from being interfered with by human factors and the environment.

[0061] like Figures 1 to 4 As shown, the main body 21 is generally cylindrical and consists of three parts with progressively smaller outer diameters from top to bottom. An annular groove 212 is provided on the lowest part, and a first waterproof ring 22 is embedded within the annular groove 212. To ensure sealing and waterproofing performance, multiple annular grooves 212 can be provided. For example, this embodiment shows three annular grooves 212, and three first waterproof rings 22 are configured accordingly. The three first waterproof rings 22 are embedded one-to-one within the three annular grooves 212, thus forming multiple seals to ensure waterproofing and dustproofing effects.

[0062] Continue to combine Figure 2 and Figure 3 Both the sleeve 24 and the waterproof outer shell 25 are roughly cylindrical so that they can be nested together to form a coaxial telescopic structure. Figure 2 As shown, an annular baffle 241 is provided on the outer periphery of the bottom end of the sleeve 24. The outer diameter of the annular baffle 241 is larger than the inner diameter of the waterproof outer shell 25, so that the waterproof outer shell 25 is always kept on the sleeve 24 and cannot be detached from the sleeve 24. The above structure can not only realize the relationship of fine adjustment and extension to adapt to different testing needs, but also maintain the sealing during the extension process, further enhancing the moisture-proof and dust-proof effect.

[0063] In some embodiments, to further enhance waterproofing, both the sleeve 24 and the waterproof outer shell 25 are provided with a hydrophobic coating. A silicone grease is applied between the lower part of the body 21 and the sleeve 24 to form a first sealing waterproof layer. Applying a silicone grease between the body 21 and the sleeve 24 not only increases the friction between them, allowing the sleeve 24 to slide up and down along the body 21 and rotate around it without slipping off, but also seals the space between the body 21 and the sleeve 24, providing moisture and dust protection.

[0064] Furthermore, a silicone grease can also be applied between the sleeve 24 and the waterproof outer shell 25 to form a second sealing and waterproof layer. By applying a silicone grease between the sleeve 24 and the waterproof outer shell 25, not only can the friction between the sleeve 24 and the waterproof outer shell 25 be increased, allowing the waterproof outer shell 25 to slide up and down along the sleeve 24 and rotate around the sleeve 24 without slipping off, but also the applied silicone grease can be used to seal between the sleeve 24 and the waterproof outer shell 25, achieving a moisture-proof and dust-proof effect.

[0065] For example, such as Figure 6 As shown, multiple ridges 251 are arranged sequentially around the lower outer periphery of the waterproof outer shell 25 to form a circle, with a notch 252 formed between adjacent ridges 251. The shape of the stop block 31 on the stage 3 matches the shape of the notch 252, and they correspond one-to-one. The lower end of the waterproof outer shell 25 can extend into the loading cavity of the stage 3 with the notch 252 and the stop block 31 facing each other. Then, by rotating the waterproof outer shell 25, the notch 252 and the stop block 31 are misaligned, and the stop block 31 faces the ridge 251 and is located above the ridge 251, which can prevent the ridge 251 from falling out upwards, thus keeping the waterproof outer shell 25 on the stage 3. By setting the waterproof outer shell 25, the sleeve 24 and the stage 3 can be kept in close contact, effectively isolating external moisture and dust, and ensuring the stability and reliability of the detection process. This significantly improves the service life and imaging quality of the polarizing microscope in complex environments.

[0066] In some embodiments, such as Figure 2 As shown, the polarizing microscope also includes an upper cover plate 26 and a second waterproof ring 27. The upper cover plate 26 is located on the upper end face of the main body 21 and is used to seal the upper port of the chamber 211. The second waterproof ring 27 is located between the upper cover plate 26 and the upper end face of the main body 21 and is used to seal the two. By providing the second waterproof ring 27, the upper cover plate 26 can be sealed tightly to the upper port of the chamber 211, preventing dust and moisture from entering the chamber 211 through the upper port and protecting the optical system 23 inside the chamber 211.

[0067] Continue to combine Figure 2 The optical system 23 includes a CCD camera 231, a microscope tube 232, an analyzer 233, a polarizer 234, and an LED lamp 235. The CCD camera 231 (Charge-Coupled Device, a common image sensor used to capture images under a microscope and convert them into digital signals) is fixed to the upper end of the chamber 211 via a retaining sleeve 236; the microscope tube 232 is located below the CCD camera 231 and is connected to it. (See [reference]) Figure 4 .like Figure 5As shown, the analyzer 233 is located inside the bottom end of the sleeve 24. The bottom of the stage 3 is recessed upwards to form a cavity with the cavity opening facing downwards. The polarizer 234 is fixed to the top of the cavity opposite the cavity opening. The LED lamp 235 is located inside the cavity and below the polarizer 234, providing a light source for the optical system 23. The LED lamp 235, polarizer 234, and analyzer 233 work together to form a polarized light path. The polarized light emitted from the light source, passing through the polarizer 234 and analyzer 233, is transmitted through the lens barrel 232 to the CCD camera 231 for imaging, completing the capture of the sample's optical information.

[0068] For example, the LED lamp 235 can be fixed to a fixing plate, which covers the opening of the cavity to seal the LED lamp 235 and the polarizer 234 inside the cavity.

[0069] In some embodiments, such as Figure 1 and Figure 2 As shown, the mirror post 1 includes a vertical support portion 11 and a clamp 12 disposed on the top of the vertical support portion 11. The clamp 12 is used to clamp the main body 21, so that the main body 21 is fixed to the mirror post 1. The specific structure of the clamp 12 is not limited, as long as it can ensure the stability of the main body 21 after clamping. In this embodiment, the clamp 12 is adjusted for tightness by hexagonal screws, and the clamp 12 is fixedly connected to the support post by hexagonal screws to ensure mechanical stability.

[0070] Continue to combine Figure 1 and Figure 2 The polarizing microscope also includes a lifting device 5. The stage 3 is mounted on the lifting device 5 and located below the main body 21. The lifting device 5 is mounted on the vertical support 11. The lifting device 5 is used to move the stage 3 up and down, so that the stage 3 moves closer to or away from the lower end of the sleeve 24. By setting the lifting device 5, the stage 3 can be moved up and down. During inspection, the stage 3 rises to complete the nesting with the waterproof shell 25 and the tight fit with the sleeve 24. After inspection, the stage 3 is lowered to separate from the image acquisition system 2, facilitating the next inspection.

[0071] For example, such as Figure 2As shown, the lifting device 5 includes a guide component 51, a lifting block 52, and an adjusting rod 53. The guide component 51 may include opposing upper and lower side plates and a back plate connecting the opposing sides of the upper and lower side plates, so that the guide component 51 forms a U-shaped structure with the opening facing to the side. The guide component 51 is fixed to the vertical support part 11 by the back plate. A guide rod 511 extending vertically is provided between the upper and lower side plates. The guide rod 511 passes through the lifting block 52, and the lifting block 52 can slide up and down along the guide rod 511. The lifting block 52 is provided with a threaded hole extending vertically. The adjusting rod 53 is provided with an external thread. The adjusting rod 53 passes through the threaded hole and is threadedly connected to the lifting block 52. When the adjusting rod 53 is rotated, it can drive the lifting block 52 to move up and down along the guide rod 511, thereby realizing lifting. The platform 3 is fixed to the periphery of the lifting block 52. When the lifting block 52 is lifted, it can drive the platform 3 to lift synchronously.

[0072] Continue to combine Figure 2 The lower end of the adjusting rod 53 extends downward through the lower side plate of the guide component 51, and a knob 54 is provided at the lower end of the adjusting rod 53. By rotating the knob 54, the adjusting rod 53 can be rotated, thereby realizing the lifting of the lifting block 52 and the platform 3. The knob 54 is provided to facilitate user operation and improve ease of use.

[0073] This application also provides a portable polarizing microscope system. For example... Figure 7 As shown, the portable polarizing microscope system includes a base 6, a data processing and display device, and a polarizing microscope as described in any of the above embodiments. The microscope column 1 is fixed to the base 6, and the vertical support 11 of the column 1 is perpendicular to the base 6. The data processing and display device is located on the base 6 and connected to the optical system 23 of the polarizing microscope, and is used to process and display the optical information captured by the optical system 23.

[0074] The portable polarizing microscope system of this application integrates a polarizing microscope and a data processing and display device onto a base 6, achieving a miniaturized and portable design, making it more suitable for on-site in-situ detection, improving the flexibility and convenience of application; reducing manufacturing costs, enabling mass production, and making high-performance microscopes more widely available; and the dustproof and moisture-proof features ensure stable operation in complex environments such as the field and industrial sites.

[0075] In some embodiments, such as Figure 7As shown, the data processing and display device includes an industrial computer 7 and a battery pack 9. The battery pack 9 includes a lithium battery 92, a waterproof housing 91, and a waterproof plug. The lithium battery 92 is sealed inside the waterproof housing 91, which is detachably mounted on the base 6. For example, the waterproof housing 91 is fixed to the base 6 with M5 screws and can be disassembled and transported independently and sealed with the lithium battery 92 to prevent leakage. The waterproof housing 91 has a lead hole 911 for leading out a power supply line, which is connected to the industrial computer 7 to supply power from the lithium battery 92 to the industrial computer 7. The waterproof plug is located on the lead hole 911 and wraps around the power supply line. By providing the waterproof plug, moisture or dust is prevented from entering through the gap between the power supply line and the wall of the lead hole 911, ensuring the safety of the lithium battery 92.

[0076] In some embodiments, such as Figure 8 As shown, the industrial computer 7 includes a housing 71, an all-in-one unit 72, and a cover plate 724. The housing 71 includes a front panel 711 and a rear cover plate 712. The rear cover plate 712 is fastened to the rear side of the front panel 711 and forms a cavity with the front panel 711. The all-in-one unit 72 is disposed within the cavity, and a third waterproof ring 73 is provided between the display panel of the all-in-one unit 72 and the rear side of the front panel 711. A power switch 721, a Bluetooth module 722, and a waterproof cable tray 723 are provided in the lower back side of the all-in-one unit 72. The power switch 721, Bluetooth module 722, and waterproof cable tray 723 are covered by the cover plate 724, and a fourth waterproof ring 74 is provided between the cover plate 724 and the lower back side of the all-in-one unit 72. By setting the third waterproof ring 73 and the fourth waterproof ring 74, the front panel 711 and the cover plate 724 of the casing 71 are sealed to the all-in-one machine 72, ensuring that the all-in-one machine 72 itself and the components inside the lower part of the all-in-one machine 72 are in a sealed space and are protected from the influence of the external environment such as moisture or dust.

[0077] The power supply wire leading from the lead hole 911 of the battery pack 9 passes through the waterproof cable tray 723 and enters the interior of the all-in-one machine 72, connecting to the input / output interface of the all-in-one machine 72 to supply power to the all-in-one machine 72, the LED light 235, and the peripheral Bluetooth module 722. The Bluetooth module 722 communicates wirelessly with the LED light 235 of the polarizing microscope to adjust the brightness and emission mode of the LED light 235 to meet the needs of multi-scene detection.

[0078] Continue to combine Figure 7 and Figure 8The industrial computer 7 also includes a support arm 8, the bottom of which is fixed to the base 6. The top of the support arm 8 is equipped with a support member 81, and the rear cover plate 712 of the industrial computer 7 is detachably mounted on the support member 81. The rear cover plate 712 and the support member 81 can be connected by hexagonal screws, and the clamping force can be adjusted. The support member 81 can accommodate monitors of different sizes (all-in-one computer 72). The support arm 8 supports and fixes the industrial computer 7 to the base 6, ensuring stability and user convenience.

[0079] like Figure 7 As shown, the base 6 includes a base plate 61 and rubber feet 62 mounted on the bottom of the base plate 61. The base plate 61 can be made of metal and can be weighted to ensure structural strength and stability. The rubber feet 62 utilize the elastic properties of rubber to effectively absorb and reduce the transmission of external vibrations through a damping effect, achieving shock absorption and ensuring the stability of the optical detection path.

[0080] Continue to combine Figure 7 The base plate 61 can be rectangular. The vertical support part 11 of the mirror column 1 is plate-shaped and is vertically installed on one side of the base plate 61 near the corner. The clamp 12 of the mirror column 1 is located directly above the base plate 61, so that the image acquisition system 2 fixed on the clamp 12 occupies the upper space on one side of the base plate 61. The data processing and display device is located on the other side of the base plate 61, wherein the battery pack 9 and the industrial control computer 7 can be arranged in a front-to-back configuration.

[0081] The portable polarizing microscope system of this application has a reasonable structural layout. It is not only small in size and light in weight, making it easy to carry, but also inexpensive. It has important application value in rapid on-site detection and provides an efficient and economical solution for research and application in related fields.

[0082] In this application, the parts requiring connection can be connected using hex screws. Heavy structures such as the base plate 61 and mirror pillar 1 use M6 screws; the waterproof housing 91 of the battery pack 9 is fitted with M5 screws; and the Bluetooth module 722 and power switch 721 use M4 screws. That is, based on the weight, thickness, and precision of the components, different grades of screws (M4 / M5 / M6) are used. This ensures the mechanical support strength (such as the base plate 61 and mirror pillar 1) while avoiding damage to electronic / optical components due to over-tightening, meeting the balance requirements of shock resistance and disassembly / reassembly efficiency. By using a unified screw specification (M4 / M5 / M6), the entire device can be disassembled using only three types of hex screwdrivers, covering the disassembly / reassembly needs of mechanical support, electronic control, and optical detection modules. The main body 21 structure (the housing 71 of the industrial control computer 7 and the base plate 61) is made of aluminum alloy, maintaining an IP67 protection rating. This ensures quick disassembly and assembly, reduces maintenance complexity, and adapts to field operating environments.

[0083] The operation process of the portable polarizing microscope system described in this application is as follows:

[0084] First, start the industrial control computer 7, turn on the light source switch LED 235, and adjust the brightness to a suitable level. Rotate the sleeve 24 to adjust the direction of the analyzer 233. Observe the biomica slice placed on the detection cell of the sample introduction device 4. The color changes from monochromatic to interference color, indicating that the polarization is in an orthogonal state, that is, the polarization microscope calibration is complete.

[0085] Then, the liquid crystal sensor chip is placed on the sample introduction device 4, and both are placed together on the stage 3. The knob 54 is rotated to raise the stage 3 to a suitable position, allowing it to nest with the sleeve 24 and the waterproof housing 25. If necessary, further ensure a tight fit between the two, ensuring the industrial computer 7 interface is dark and free from stray light interference. The waterproof housing 25 is slightly adjusted downwards to ensure the anti-interference and accuracy of the detection process. The image on the industrial computer 7 is then observed. Figure 10 This is the image displayed by the liquid crystal sensor chip when the polarizer 234 is parallel to the analyzer 233. Then, the sleeve 24 is rotated to adjust the analyzer 233 to a state orthogonal to the polarizer 234, ensuring a dark background without stray light. Figure 11 Subsequently, 20 μS / MSDS solution was added using injection device 4, and the following result was obtained. Figure 12 The polarized image of the liquid crystal sensor chip shows clear edges and normal color display, meeting the standards for normal laboratory use.

[0086] It should be noted that the choice of light source in this application is not limited to LED lamp 235, and can also be any other light source. The main body 21, sleeve 24, waterproof shell 25, etc. of the image acquisition unit are made of high-rigidity, shockproof, and waterproof materials. In addition to the structure shown in this application, the optical system 23 can also be selected according to requirements. The portable polarizing microscope system of this application can be applied to any application field that requires magnification and observation of materials with optical anisotropy.

[0087] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A polarizing microscope, characterized in that, include: Mirror column; The main body is columnar and fixed to the mirror column. The main body has a cavity extending through both ends along its axial direction. A first waterproof ring is nested on the outer peripheral wall of the lower part of the main body. An optical system, which is fixed within the cavity; A stage is provided on the mirror pillar and located below the main body. The stage can be raised and lowered along the mirror pillar. The stage has a loading cavity formed by a downward indentation from its top. A stop block is provided around the periphery of the opening of the loading cavity. A sample introduction device is disposed on the sample stage; A sleeve is fitted onto the lower part of the main body. The inner wall of the sleeve is tightly fitted with the first waterproof ring. The sleeve can rotate relative to the main body and can move along the axial direction of the main body so that the lower end of the sleeve can be tightly attached to the upper surface of the sample injection device. A waterproof housing is fitted over the sleeve and is movable relative to the sleeve in the axial direction of the main body. The outer periphery of the lower end of the waterproof housing has a protruding ridge, which can be stopped by the stop block so that the waterproof housing is limited to the platform.

2. The polarizing microscope according to claim 1, characterized in that, The polarizing microscope also includes an upper cover plate and a second waterproof ring. The upper cover plate is located on the upper end face of the main body and is used to cover the upper port of the chamber. The second waterproof ring is located between the upper cover plate and the upper end face of the main body and is used to seal the two together.

3. The polarizing microscope according to claim 1, characterized in that, Silicone grease is applied between the lower part of the main body and the sleeve to form a first sealing and waterproof layer and to increase the friction between the main body and the sleeve. and / or Silicone grease is applied between the sleeve and the waterproof outer shell to form a second sealing and waterproof layer, and to increase the friction between the sleeve and the waterproof outer shell.

4. The polarizing microscope according to claim 1, characterized in that, The optical system includes a CCD camera, a lens barrel, an analyzer, a polarizer, and an LED light. The CCD camera is fixed to the upper end of the cavity by a fixing sleeve. The lens barrel is located below the CCD camera and connected to it. The analyzer is located inside the bottom end of the sleeve. The polarizer is located at the top of the cavity formed by the indentation from the bottom of the stage. The LED light is located inside the cavity and below the polarizer. The LED light, the polarizer, and the analyzer work together to form a polarized light path.

5. The polarizing microscope according to claim 1, characterized in that, The mirror post includes a vertical support portion and a clamp disposed at the top of the vertical support portion, the clamp being used to hold the main body so as to fix the main body to the mirror post; and / or The polarizing microscope also includes a lifting device. The stage is mounted on the lifting device and located below the main body. The lifting device is mounted on the vertical support and is used to move the stage up and down so that the stage moves closer to or away from the lower end of the sleeve.

6. The polarizing microscope according to claim 5, characterized in that, The lifting device includes a guide component, a lifting block, and an adjusting rod. The guide component is fixed to the vertical support and has a guide rod extending vertically. The guide rod passes through the lifting block, and the lifting block has a threaded hole extending vertically. The adjusting rod has an external thread and passes through the threaded hole to be threadedly connected to the lifting block. When the adjusting rod is rotated, the lifting block can be driven to move up and down along the guide rod. The platform is fixed to the periphery of the lifting block and can move up and down with the lifting block.

7. A portable polarizing microscope system, characterized in that, include: Base; The polarizing microscope according to any one of claims 1 to 6, wherein the microscope column is fixed to the base; A data processing and display device is mounted on the base and connected to the optical system of the polarizing microscope, for processing and displaying the optical information captured by the optical system.

8. The portable polarizing microscope system according to claim 7, characterized in that, The data processing and display device includes an industrial computer and a battery pack; the battery pack includes a lithium battery, a waterproof housing, and a waterproof plug. The waterproof housing is fixed to the base, and the lithium battery is detachably disposed inside the waterproof housing. The waterproof housing has a lead hole for leading out a power supply line, which is connected to the industrial computer to supply power to the industrial computer. The waterproof plug is disposed on the lead hole and wraps around the power supply line.

9. The portable polarizing microscope system according to claim 8, characterized in that, The industrial control computer includes a housing, an integrated unit, and a cover plate. The housing includes a front panel and a rear sealing plate. The rear sealing plate is fastened to the rear side of the front panel and forms a cavity with the front panel. The integrated unit is disposed in the cavity, and a third waterproof ring is provided between the display panel of the integrated unit and the rear side of the front panel. The lower back of the all-in-one machine is equipped with a power switch, a Bluetooth module, and a waterproof cable tray. The power switch, Bluetooth module, and waterproof cable tray are covered by the cover plate, and a fourth waterproof ring is provided between the cover plate and the lower back of the all-in-one machine.

10. The portable polarizing microscope system according to claim 9, characterized in that, The industrial computer also includes a support arm, the bottom of which is fixed to the base, and a support member is provided at the top of the support arm. The rear cover of the industrial computer is detachably installed on the support member; and / or the base includes a base plate and rubber feet installed at the bottom of the base plate.

Images