Multifunctional optical microscopic observation device

Abstract

The invention relates to a multifunctional optical microscopic observation device which comprises a rack, an objective table, a transmission light source module, a reflection light source module, an objective lens adjusting module and a light source receiving module. When a sample is observed through transmission light, the light-transmitting channel of the reflection light source module is located on a transmission light path, and the transmission light sequentially penetrates through the sample, the light source adjusting module and the light-transmitting channel and then is received by the light source receiving module; when a sample is observed through reflected light, the reflected light emitting end of the reflected light source module is located on a transmission light path, and the reflected light emitted by the reflected light emitting end is reflected by the sample and then is received by the light source receiving module, so that multifunctional detection of light transmission and light reflection can be realized; the microscopic light difference device is high in integration level and small in size, the adjustment process of the light source adjustment module does not affect transmission of transmission light and reflected light, and large-scale popularization can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of optical equipment, and in particular to a multifunctional optical microscopic observation device. Background Art

[0002] In the fields of geology, mining, oil and natural gas, the structure and composition of rocks are the main contents of observation and analysis. Under the existing optical microscopic observation methods, the identification of minerals in rock thin sections is mainly achieved by experimenters manually operating traditional optical microscopes, and randomly selecting several fields of view for observation and identification under the microscope. The observation field is small, the identification results are highly accidental and it is difficult to truly reflect the structure and composition of the actual rock, resulting in the rock thin section identification results cannot accurately reflect the characteristics of the rock; and the degree of automation and versatility of existing optical microscopes are far from meeting the needs of cutting-edge research.

[0003] There is no good solution to the above situation on the market. The main reasons are that the identification of rock minerals under the microscope requires a comprehensive analysis of transmitted white light and polarized light; the identification of organic components in rocks requires the configuration of fluorescence in different bands, etc., which requires high integration of the equipment's optical path; the structural analysis of rocks requires high-precision continuous scanning and splicing into ultra-large-format photos; due to the limitations of the original microscope structure, the multi-functional and automated upgrade of traditional optical microscopes is costly, difficult, and difficult to promote on a large scale. Innovative design is necessary to achieve multi-functional and automated microscopic observation to meet the needs of comprehensive research in the geological field. Summary of the invention

[0004] In view of this, a multifunctional optical microscope observation device is provided.

[0005] The present invention provides a multifunctional optical microscopic observation device, comprising a frame, an object stage, a transmission light source module, a reflection light source module, an objective lens adjustment module and a light source receiving module, wherein the object stage is connected to the frame, the object stage has a clamping station for light source penetration and for fixing a sample, the transmission light source module is connected to the frame and is located on one side of the object stage, the transmission light source module has a transmission light emitting end, and the transmission light emitting end can emit a transmission light path penetrating the clamping station, the reflection light source module is connected to the frame and is located on the other side of the object stage, the reflection light source module has a light transmission channel and at least one reflection light emitting end, and both the light transmission channel and the reflection light emitting end can be moved to the transmission light path, the objective lens adjustment module is connected to the frame and is located on the transmission light path, the objective lens adjustment module is arranged at a position between the object stage and the reflection light source module, the light source receiving module is connected to the frame and is located at the end of the transmission light path, and the light source receiving module is configured to receive transmission light or reflection light.

[0006] Furthermore, the stage includes a three-axis stage and a grating ruler, the three-axis stage is connected to the frame, the three-axis stage has a moving end for light source to penetrate and for fixing the sample, the grating ruler is installed on the moving end for detecting the displacement of the moving end.

[0007] Furthermore, the three-axis stage includes a stage bracket and a three-axis moving part, the stage bracket is connected to the frame, the three-axis moving part is fixedly connected to the stage bracket, and the output end of the three-axis moving part is connected to the sample to drive the sample to move.

[0008] Furthermore, the transmission light source module includes a transmission light source, an electric polarizer and a first driving member, the transmission light source and the first driving member are both connected to the frame, the transmission light source and the electric polarizer are arranged in sequence along the direction toward the moving end, the transmission light source is configured to form a transmission light path passing through the moving end, and the output end of the first driving member is connected to the electric polarizer for driving the electric polarizer to rotate.

[0009] Furthermore, the reflective light source module includes a reflective light source box, at least two connecting tubes, at least one reflective light source and a rotating part. The top and bottom of the reflective light source box are both provided with openings located on the transmitted light path. The interior of one of the connecting tubes is empty, and the remaining connecting tubes are installed with reflective light sources. The rotating part is installed in the reflective light source box, and the output end of the rotating part is connected to a plurality of the connecting tubes, which is configured to drive any of the connecting tubes to rotate to a position facing the opening.

[0010] Furthermore, the objective lens adjustment module includes a connecting seat, a turntable, a plurality of objective lenses and a second driving member, the connecting seat is fixedly connected to the frame, the turntable is rotatably connected to a through slot provided on the connecting seat, the plurality of objective lenses are evenly arranged along the circumference of the turntable and are respectively embedded in a plurality of slots provided on the turntable, any one of the objective lenses can be rotated to be located on the transmitted light path, the second driving member is installed on the connecting seat, and the output end of the second driving member is connected to the turntable for driving the turntable to rotate.

[0011] Furthermore, the light source receiving module includes a camera, an electric polarizer and a third driving member, and the reflective light source module, the electric polarizer and the camera are arranged in sequence along the transmission direction of the transmitted light path, the camera and the third driving member are both connected to the frame, and the output end of the third driving member is connected to the electric polarizer for driving the electric polarizer to rotate and move linearly, wherein the electric polarizer can slide to a position on the transmitted light path or staggered with the transmitted light path.

[0012] Furthermore, the device also includes a control module, which is electrically connected to the three-axis moving member, the first driving member, the second driving member and the third driving member, and is used to drive the first driving member, the second driving member and the third driving member to move.

[0013] Further, the control module has a first control end electrically connected to the three-axis moving member, a second control end electrically connected to the first driving member, a third control end electrically connected to the second driving member, and a fourth control end electrically connected to the third driving member; wherein, The first control end is configured to drive the three-axis moving part to move, and drive the three-axis moving part to compensate according to the displacement detection result of the grating ruler; The second control end is configured to control the first driving member to drive the electric polarizer to rotate; The third control end is configured to control the second driving member to drive the turntable to rotate; The fourth control end is configured to control the third driving member to drive the electric polarizer to rotate and move linearly.

[0014] Furthermore, the device also includes a shell, which is covered on the frame, and a cavity that closes the transmission light path and the reflection light path is formed between the shell and the frame.

[0015] Compared with the prior art, when observing the sample by transmitted light, the light transmission channel of the reflective light source module is located on the transmitted light path, and the transmitted light penetrates the sample, the light source adjustment module and the light transmission channel in sequence and is received by the light source receiving module; when observing the sample by reflected light, the reflected light emitting end of the reflective light source module is located on the transmitted light path, and the reflected light emitted by the reflected light emitting end is received by the light source receiving module after being reflected by the sample. It can be seen that multifunctional detection of light transmission and light reflection can be achieved (the identification of rock minerals under the microscope requires a comprehensive analysis of transmitted white light and polarized light, and the identification of organic components in rocks requires the configuration of fluorescence of different bands, etc.). At the same time, since the transmitted light and the reflected light completely overlap, there is no need to equip structures such as a spectroscope. The microscopic light difference device has high integration and small size, and the adjustment process of the light source adjustment module does not affect the transmission of the transmitted light and the reflected light, and can be promoted on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall appearance of the multifunctional optical microscopic observation device provided in an embodiment of the present invention; Figure 2 An exploded view of the whole multifunctional optical microscopic observation device provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of an objective lens adjustment module in a multifunctional optical microscope observation device provided in an embodiment of the present invention; Figure 4 A schematic diagram of the arrangement of a connecting sleeve in a multifunctional optical microscopic observation device provided in an embodiment of the present invention; Figure 5 A schematic diagram of the connection between a push member and an analyzer in a multifunctional optical microscope observation device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0018] In a traditional optical microscope observation device, the transmission light path used for light transmission detection and the reflection light path used for light reflection detection only partially overlap. Specifically, since there are multiple light sources, it is necessary to configure a spectroscopic structure such as a spectroscope and a reflector to transmit different light sources to the sample. The setting of the spectroscopic structure will lead to an increase in the size of the device and a low degree of device integration. At the same time, after each adjustment of the objective lens, the setting angle and position of the spectroscopic structure need to be synchronously adjusted, which is extremely inconvenient to use.

[0019] It should be noted that the light transmission detection described above includes detection methods for detecting the internal structure of the sample by transmitting single polarized light, orthogonal polarized light, etc., and the light reflection detection described above includes detection methods for detecting the surface state, organic components, etc. of the sample by reflecting white light, reflecting B-band fluorescence and G-band fluorescence, etc.

[0020] In order to solve the above mentioned problems, Figure 1-2 As shown, a multifunctional optical microscope observation device provided by the present invention includes a frame 100, a stage 200, a transmission light source module 300, a reflection light source module 400, an objective lens adjustment module 500 and a light source receiving module 600, wherein the stage 200 is connected to the frame 100, and the stage 200 has a clamping position for light source penetration and for fixing the sample, the transmission light source module 300 is connected to the frame 100 and is located on one side of the stage 200, and the transmission light source module 300 has a transmission light emitting end, and the transmission light emitting end can emit a transmission light path that penetrates the clamping position, and the reflection light source module 400 can be used to adjust the objective lens and receive the light. The projected light source module 400 is connected to the rack 100 and is located on the other side of the stage 200. The reflected light source module 400 has a light-transmitting channel and at least one reflected light emitting end. Both the light-transmitting channel and the reflected light emitting end can be moved to the transmitted light path. The objective lens adjustment module 500 is connected to the rack 100 and is located on the transmitted light path. The objective lens adjustment module 500 is arranged at a position between the stage 200 and the reflected light source module 400. The light source receiving module 600 is connected to the rack 100 and is located at the end of the transmitted light path. The light source receiving module 600 is configured to receive transmitted light or reflected light.

[0021] During implementation, when observing the sample by transmitted light, the light transmission channel of the reflective light source module 400 is located on the transmitted light path, and the transmitted light sequentially penetrates the sample, the light source adjustment module and the light transmission channel and is received by the light source receiving module 600; when observing the sample by reflected light, the reflected light emitting end of the reflective light source module 400 is located on the transmitted light path, and the reflected light emitted by the reflected light emitting end is received by the light source receiving module 600 after being reflected by the sample. It can be seen that multifunctional detection of light transmission and light reflection can be achieved (the identification of rock minerals under a microscope requires a comprehensive analysis of transmitted white light and polarized light, and the identification of organic components in rocks requires the configuration of fluorescence of different bands, etc.). At the same time, since the transmitted light and the reflected light completely overlap, there is no need to equip structures such as a spectroscope. The microscopic light difference device has high integration and small size, and the adjustment process of the light source adjustment module does not affect the transmission of the transmitted light and the reflected light, and can be promoted on a large scale.

[0022] The frame 100 in this embodiment is used to fix the stage 200 , the transmission light source module 300 , the reflection light source module 400 , the objective lens adjustment module 500 and the light source receiving module 600 .

[0023] In one embodiment, the frame 100 includes a base 110 and an arm 120, the bottom of the arm 120 is fixedly connected to the base 110, the top of the arm 120 is bent in the horizontal direction and connected to the transmission light source module 300, the stage 200, the objective lens adjustment module 500, the reflection light source module 400 and the objective lens adjustment module 500 are arranged in sequence in the vertical downward direction and are all connected to the arm 120, and the light source receiving module 600 is connected to the base 110.

[0024] Among them, the stage 200 is fixedly connected to the arm 120 via the first bracket 130, the objective lens adjustment module 500 is fixedly connected to the arm 120 via the second bracket 140, the reflective light source module 400 is connected to the arm 120 via the third bracket 150, and the second bracket 140 is fixedly connected to the arm 120 via the third bracket 150.

[0025] It is understandable that the rack 100 may also be replaced by other structures, which is not limited in the embodiment of the present invention.

[0026] The stage 200 in this embodiment is connected to the frame 100 , and the stage 200 has a clamping position for a light source to penetrate and for fixing a sample.

[0027] Due to the strong heterogeneity of rock samples, the requirements for image scanning and stitching are high, and therefore, the requirements for the accuracy of the translation stage are also high.

[0028] In response to the above problems, in one embodiment, the stage 200 includes a three-axis stage 200 and a grating ruler. The three-axis stage 200 is connected to the frame 100. The three-axis stage 200 has a moving end for a light source to penetrate and for fixing the sample. The grating ruler is installed on the moving end for detecting the displacement of the moving end.

[0029] The three-axis stage 200 in this embodiment uses a grating ruler to achieve closed-loop control, can realize automatic compensation in motion control, has high positioning accuracy, and small repeatability error. During microscopic observation, the movement of rock samples can be controlled with high accuracy.

[0030] In one embodiment, the three-axis stage 200 includes a stage 200 bracket and a three-axis moving part. The stage 200 bracket is connected to the frame 100, the three-axis moving part is fixedly connected to the stage 200 bracket, and the output end of the three-axis moving part is connected to the sample to drive the sample to move.

[0031] It is understandable that the three-axis moving part can adopt, for example, an XYZ screw module moving structure, which is a structure that can be thought of by those skilled in the art and is used to drive the sample to move so as to observe different parts of the sample.

[0032] To facilitate the placement and removal of samples, a special fixture is connected to the output end of the three-axis moving part. The special fixture includes a bottom frame, two slide rails, two clamps and multiple springs. The two slide rails are arranged in parallel on the bottom frame. The two clamps are slidably connected to the two slide rails in opposite or opposite directions. The opposite sides of the two clamps are connected to the bottom frame via multiple springs. The opposite sides of the two clamps are formed with a slot for clamping with the sample. Under the action of the spring, the two clamps move relative to each other to clamp the sample. When placing the sample, it is only necessary to push the two clamps to move in opposite directions, which is convenient to use.

[0033] The transmission light source module 300 in this embodiment is connected to the frame 100 and is located at one side of the stage 200. The transmission light source module 300 has a transmission light emitting end, which can emit a transmission light path that penetrates the clamping station.

[0034] In one embodiment, the transmission light source module 300 includes a transmission light source 310, an electric polarizer 330 and a first driving member, the transmission light source 310 and the first driving member are both connected to the frame 100, the transmission light source 310 and the electric polarizer 330 are arranged in sequence along the direction toward the moving end, the transmission light source 310 is configured to form a transmission light path that runs through the moving end, and the output end of the first driving member is connected to the electric polarizer 330 to drive the electric polarizer 330 to rotate. Among them, the transmission light source module 300 also includes a diaphragm 320 installed between the transmission light source 310 and the electric polarizer 330.

[0035] Among them, the transmitted light emitted by the transmitted light source 310 passes through the aperture 320 and the electric polarizer 330 in sequence and then irradiates the sample placed on the stage 200. After penetrating the sample, the transmitted light passes through the light transmission channels of the objective lens adjustment module 500 and the reflective light source module 400 in sequence and is received by the light source receiving module 600.

[0036] It is understandable that the first driving member can be implemented by a linear motor, a cylinder or the like, and there is no limitation to this.

[0037] The reflective light source module 400 in this embodiment is connected to the frame 100 and is located on the other side of the stage 200. The reflective light source module 400 has a light-transmitting channel and at least one reflected light emitting end. Both the light-transmitting channel and the reflected light emitting end can be moved to the transmitted light path.

[0038] In one embodiment, the reflective light source module 400 includes a reflective light source box, at least two connecting tubes, at least one reflective light source and a rotating part. The top and bottom of the reflective light source box are provided with openings located on the transmitted light path. The interior of one of the connecting tubes is empty, and the remaining connecting tubes are installed with reflective light sources. The rotating part is installed in the reflective light source box, and the output end of the rotating part is connected to multiple connecting tubes, which is configured to drive any connecting tube to rotate to a position facing the opening.

[0039] The reflected light source box is a closed structure, and the rotating member drives multiple connecting tubes to rotate synchronously. When the transmitted light detection is performed, the rotating member drives the internal vacant connecting tube to rotate to a position facing the opening. At this time, the transmitted light source module 300 works; when the reflected light detection is performed, the rotating member drives the connecting tube with the reflected light source installed inside to rotate to a position facing the opening. At this time, the reflected light emitted by the reflected light source irradiates the sample, and after reflection, penetrates the connecting tube and is received by the light source receiving module 600. The reflected light path formed by the above-mentioned reflected light source completely overlaps with the transmitted light path (excluding the part of the transmitted light path where multiple reflected light paths are located).

[0040] The rotating member can use a motor and a connecting rod to drive multiple connecting tubes to rotate synchronously. Specifically, the motor is installed in the reflective light source box, and the output end of the motor is connected to multiple connecting tubes via a connecting rod. It can be understood that the shape of the connecting rod depends on the number of connecting tubes. For example, if there are two connecting tubes, the connecting rod is linear, and if there are four connecting tubes, the connecting rod is cross-shaped. Of course, the rotating member can also be implemented in other forms of structure, which is not limited in the embodiment of the present invention.

[0041] The reflected light source includes a white light emitter, a B-band fluorescence emitter, a G-band fluorescence emitter and other reflected light emitters used to detect the surface state of the sample.

[0042] The objective lens adjustment module 500 in this embodiment is connected to the frame 100 and is located on the transmission light path. The objective lens adjustment module 500 is disposed at a position between the stage 200 and the reflection light source module 400 .

[0043] As shown in the figure, in one embodiment, the objective lens adjustment module 500 includes a connecting seat 510, a turntable 520, a plurality of objective lenses 530 and a second driving member. The connecting seat 510 is fixedly connected to the frame 100, the turntable 520 is rotatably connected to a through groove opened on the connecting seat 510, and the plurality of objective lenses 530 are evenly arranged along the circumference of the turntable 520 and are respectively embedded in a plurality of slots 521 opened on the turntable 520. Any objective lens 530 can be rotated to be located on the transmitted light path. The second driving member is installed on the connecting seat 510, and the output end of the second driving member is connected to the turntable 520 for driving the turntable 520 to rotate.

[0044] Among them, the connecting seat 510 provides support for the rotation of the turntable 520. In order to save space, it is arranged in a flat shape at a position between the stage 200 and the reflective light source module 400. The multiple objective lenses 530 have different magnifications. Through the rotation of the turntable 520, the objective lenses 530 with different magnifications can be rotated to the transmitted light path.

[0045] The second driving member can be a motor, a gear and an annular rack structure to achieve the above function. Specifically, the annular gear is sleeved on the turntable 520, the motor is fixedly connected to the connecting seat 510, and the output end of the motor is connected to the annular rack via the gear. Of course, in other preferred embodiments, the second driving member can also be replaced by other forms of structure, which is not limited in the embodiment of the present invention.

[0046] As shown in the figure, the device in this embodiment also includes a connecting sleeve 410 arranged between the objective lens adjustment module 500 and the reflective light source module 400. The connecting sleeve 410 is arranged on the transmitted light path. The light path portion located between the objective lens adjustment module 500 and the reflective light source module 400 can be dust-proofed by the arranged connecting sleeve 410.

[0047] In one embodiment, a mounting groove 411 extending radially is provided on the side wall of the connecting sleeve 410, and a polarizer 420 or a rubber plug located on the transmission light path can be installed in the mounting groove 411. The top of the connecting sleeve 410 is fixedly connected to the bottom of the connecting seat 510, and the bottom of the connecting sleeve 410 is connected to the opening at the top of the reflecting light source box; the joints, cracks and other features of the mineral under the reflected polarized light can be observed through the polarizer 420, and when not in use, rubber plugs can be inserted at both ends of the mounting groove 411 to prevent dust from entering therein.

[0048] The light source receiving module 600 in this embodiment is connected to the rack 100 and is located at the end of the transmission light path. The light source receiving module 600 is configured to receive transmitted light or reflected light.

[0049] In one embodiment, the light source receiving module 600 includes a camera 610, an electric polarizer 620 and a third driving member 621. The reflective light source module 400, the electric polarizer 620 and the camera 610 are arranged in sequence along the transmission direction of the transmitted light path. The camera 610 and the third driving member 621 are both connected to the frame 100. The output end of the third driving member 621 is connected to the electric polarizer 620 for driving the electric polarizer 620 to rotate and move linearly, wherein the electric polarizer 620 can slide to a position on the transmitted light path or offset from the transmitted light path.

[0050] The camera 610 is used to receive the transmitted light and reflected light through the sample, so as to generate the required image information.

[0051] When applied to different transmitted light, it is necessary to adjust the posture and position of the electric analyzer 620. Specifically: when the sample is observed by transmitting single polarized light, the electric analyzer 620 is moved to be out of the transmitted light path, forming a single polarized light observation sample condition, mainly to observe the morphology, cleavage, color, protrusion, rough surface, Becke line and other phenomena of the mineral; when the sample is observed by transmitting orthogonal polarized light, the electric analyzer 620 is moved to the transmitted light path, forming an orthogonal polarized light observation sample condition, and the electric polarizer 330 and the electric analyzer 620 are controlled to rotate in the same direction to any angle at the same time, and the interference color and total extinction of the mineral in the sample are observed.

[0052] In order to facilitate the adjustment of the posture and position of the electric polarizer 620, the third driving member 621 includes a linear motor, a rotary motor and a slide, wherein the linear motor is mounted on the base 110, the slide is slidably connected to the base 110, the output end of the linear motor is connected to the slide, and the slide can be driven to slide in a straight line direction by the linear motor, the rotary motor is mounted on the slide, the output end of the rotary motor is connected to the electric polarizer 620, and the electric polarizer 620 can be driven to rotate by the rotary motor. Of course, in other preferred embodiments, the third driving member 621 can also be replaced by other forms of structures.

[0053] The light source receiving module 600 in this embodiment further includes a tube lens 630 , and the tube lens 630 , the electric polarizer 620 and the camera 610 are arranged in sequence along the transmission direction of the transmission light path.

[0054] In order to lower the height of the device, the camera 610, the electric polarizer 620 and the tube lens 630 are arranged in sequence in the horizontal direction. The light source receiving module 600 also includes a reflector 640. The reflector 640 is tilted and arranged opposite to the tube lens 630 and the opening at the bottom of the reflecting light source box, so that the transmitted light or reflected light passing through the reflecting light source box can be transmitted to the tube lens 630 via the reflector 640.

[0055] During the identification of rock minerals, the observation of the interference colors of the minerals can be achieved by driving the electric polarizer 330 and the electric analyzer 620 to move accordingly through the first driving member and the second driving member, without rotating the stage 200, and the operation is convenient.

[0056] In order to realize an intelligent control process, the device in this embodiment also includes a control module, which is electrically connected to the three-axis moving part, the first driving part, the second driving part and the third driving part 621, and is used to drive the first driving part, the second driving part and the third driving part 621 to move.

[0057] In one embodiment, the control module has a first control end electrically connected to the three-axis moving member, a second control end electrically connected to the first driving member, a third control end electrically connected to the second driving member, and a fourth control end electrically connected to the third driving member 621; wherein, The first control end is configured to drive the three-axis moving part to move, and drive the three-axis moving part to compensate according to the displacement detection result of the grating ruler; the above-mentioned "compensation" includes detecting the displacement of the moving end of the three-axis moving part along the XYZ axis direction. After the first control end drives the three-axis moving part to move, the actual displacement is detected by the grating ruler. If there is a deviation in the displacement, the movement of the three-axis moving part is further controlled to compensate for the deviation in displacement, so as to achieve the purpose of accurately controlling the movement of the three-axis displacement part.

[0058] The second control end is configured to control the first driving member to drive the electric polarizer 330 to rotate; The third control end is configured to control the second driving member to drive the rotating disk 520 to rotate; The fourth control end is configured to control the third driving member 621 to drive the electric polarizer 620 to rotate and move linearly.

[0059] It can be understood that the above control module is a structure that can be thought of by those skilled in the art to control the corresponding structural actions according to preset programming software. It is a structure that can be thought of by those skilled in the art and will not be elaborated and illustrated in detail here.

[0060] Since the existing microscope optical path is exposed to the background of natural light and is greatly affected by the brightness of natural light, which affects the clarity of imaging, the optical path needs to be sealed to improve the stability and consistency of the optical path.

[0061] To this end, in this embodiment, the device further includes a housing 700, which is covered on the frame 100, and a cavity for closing the transmission light path and the reflection light path is formed between the housing and the frame 100. By setting the housing, the light path of the entire optical microscope observation device is closed and is not affected by natural light, which affects the clarity of imaging and improves the stability and consistency of the light path.

[0062] Compared with the prior art: when observing the sample by transmitted light, the light transmission channel of the reflective light source module 400 is located on the transmitted light path, and the transmitted light sequentially penetrates the sample, the light source adjustment module and the light transmission channel and is received by the light source receiving module 600; when observing the sample by reflected light, the reflected light emitting end of the reflective light source module 400 is located on the transmitted light path, and the reflected light emitted by the reflected light emitting end is received by the light source receiving module 600 after being reflected by the sample. It can be seen that multifunctional detection of light transmission and light reflection can be achieved (the identification of rock minerals under the microscope requires a comprehensive analysis of transmitted white light and polarized light, and the identification of organic components in rocks requires the configuration of fluorescence of different bands, etc.). At the same time, since the transmitted light and the reflected light completely overlap, there is no need to equip structures such as a spectroscope. The microscopic light difference device has high integration and small size, and the adjustment process of the light source adjustment module does not affect the transmission of the transmitted light and the reflected light, and can be promoted on a large scale.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A multifunctional optical microscopic observation device, characterized in that: include: frame; A stage connected to the frame, the stage having a clamping station for a light source to penetrate and for fixing a sample; A transmission light source module connected to the frame and located at one side of the stage, the transmission light source module having a transmission light emitting end, the transmission light emitting end being able to emit a transmission light path penetrating the clamping station; A reflective light source module connected to the frame and located at the other side of the stage, the reflective light source module having a light-transmitting channel and at least one reflected light emitting end, the light-transmitting channel and the reflected light emitting end both being able to move to the transmitted light path; An objective lens adjustment module, which is connected to the frame and located on the transmission light path, and the objective lens adjustment module is arranged at a position between the stage and the reflection light source module; A light source receiving module is connected to the frame and is located at the end of the transmission light path. The light source receiving module is configured to receive the transmitted light or the reflected light.

2. The multifunctional optical microscopic observation device according to claim 1, characterized in that: The stage includes a three-axis stage and a grating ruler. The three-axis stage is connected to the frame. The three-axis stage has a moving end for a light source to penetrate and for fixing a sample. The grating ruler is installed on the moving end for detecting the displacement of the moving end.

3. The multifunctional optical microscopic observation device according to claim 2, characterized in that: The three-axis stage includes a stage bracket and a three-axis moving part. The stage bracket is connected to the frame, the three-axis moving part is fixedly connected to the stage bracket, and the output end of the three-axis moving part is connected to the sample to drive the sample to move.

4. The multifunctional optical microscopic observation device according to claim 3, characterized in that: The transmission light source module includes a transmission light source, an electric polarizer and a first driving member, wherein the transmission light source and the first driving member are both connected to the frame, and the transmission light source and the electric polarizer are arranged in sequence along a direction toward the moving end, and the transmission light source is configured to form a transmission light path passing through the moving end, and an output end of the first driving member is connected to the electric polarizer for driving the electric polarizer to rotate.

5. The multifunctional optical microscopic observation device according to claim 4, characterized in that: The reflective light source module includes a reflective light source box, at least two connecting tubes, at least one reflective light source and a rotating part. The top and bottom of the reflective light source box are both provided with openings located on the transmitted light path. The interior of one of the connecting tubes is empty, and the remaining connecting tubes are installed with reflective light sources. The rotating part is installed in the reflective light source box, and the output end of the rotating part is connected to a plurality of the connecting tubes, which is configured to drive any of the connecting tubes to rotate to a position facing the opening.

6. The multifunctional optical microscopic observation device according to claim 5, characterized in that: The objective lens adjustment module includes a connecting seat, a turntable, a plurality of objective lenses and a second driving member. The connecting seat is fixedly connected to the frame, the turntable is rotatably connected to a through slot provided on the connecting seat, the plurality of objective lenses are evenly arranged along the circumference of the turntable and are respectively embedded in a plurality of slots provided on the turntable, any one of the objective lenses can be rotated to be located on the transmitted light path, the second driving member is installed on the connecting seat, and an output end of the second driving member is connected to the turntable for driving the turntable to rotate.

7. The multifunctional optical microscopic observation device according to claim 6, characterized in that: The light source receiving module includes a camera, an electric polarizer and a third driving member. The reflective light source module, the electric polarizer and the camera are arranged in sequence along the transmission direction of the transmitted light path. The camera and the third driving member are both connected to the frame. The output end of the third driving member is connected to the electric polarizer to drive the electric polarizer to rotate and move linearly, wherein the electric polarizer can slide to a position on the transmitted light path or staggered from the transmitted light path.

8. The multifunctional optical microscopic observation device according to claim 7, characterized in that: The device also includes a control module, which is electrically connected to the three-axis moving member, the first driving member, the second driving member and the third driving member, and is used to drive the first driving member, the second driving member and the third driving member to move.

9. The multifunctional optical microscopic observation device according to claim 8, characterized in that: The control module has a first control end electrically connected to the three-axis moving member, a second control end electrically connected to the first driving member, a third control end electrically connected to the second driving member, and a fourth control end electrically connected to the third driving member; wherein, The first control end is configured to drive the three-axis moving part to move, and drive the three-axis moving part to compensate according to the displacement detection result of the grating ruler; The second control end is configured to control the first driving member to drive the electric polarizer to rotate; The third control end is configured to control the second driving member to drive the turntable to rotate; The fourth control end is configured to control the third driving member to drive the electric polarizer to rotate and move linearly.

10. The multifunctional optical microscopic observation device according to claim 1, characterized in that: The device also includes a shell, which is covered on the frame, and a cavity for closing a transmission light path and a reflection light path is formed between the shell and the frame.

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