A micro-raman detection device

Abstract

The present application belongs to the technical field of optical detection equipment, and particularly relates to a microscopic Raman detection equipment, which comprises a main body component, a top cover component and a bottom cover component; a control adjusting component is arranged in the main body component; an optical component is arranged in the main body component, and the optical component comprises an optical slit, an optical support, a beam splitter support, a visible light near-infrared beam splitter, a double-glued mirror, an illumination assembly and a data transmission assembly; the visible light near-infrared beam splitter is installed on the beam splitter support; the optical slit, the beam splitter support, the double-glued mirror, the illumination assembly and the data transmission assembly are all installed on the optical support; the illumination assembly and the data transmission assembly are electrically connected with the main control board; laser reflected by the visible light near-infrared beam splitter passes through the optical support channel, reaches the double-glued mirror, and is converged on a sample by the double-glued mirror; and an imaging component is arranged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of optical detection equipment, and particularly relates to a microscopic Raman detection equipment. BACKGROUND

[0002] Raman spectroscopy is a spectral analysis technology developed on the basis of Raman scattering effect. The quantity, displacement value and intensity of Raman spectrum are related to the vibration and rotation of molecular substance, which makes each kind of molecular substance have a specific characteristic Raman spectrum peak. Raman spectroscopy has been widely applied to Raman spectrometer for substance detection and molecular structure research. Raman spectrometer has also been rapidly developed and applied in the fields of biology, chemical industry, geology and polymer due to its simple operation, rapid detection and high sensitivity.

[0003] The existing handheld Raman spectrometer can only be held to aim at the sample to be detected in the use process, and the unstable holding can cause inaccurate analysis results. If the spectrometer and the sample are fixed respectively, the sample cannot be easily adjusted to the best focal position.

[0004] The existing confocal microscopic Raman spectrometer is realized by a commercial microscope module to realize microscopic observation of the sample on the sample stage. Although the sample placement problem of the handheld Raman spectrometer can be solved, the confocal microscopic Raman spectrometer generally has a large volume and a complex optical path, and it is difficult to realize compact structure and convenient carrying on the basis of considering detection sensitivity, and cannot be used for field operation. SUMMARY

[0005] The present application provides a microscopic Raman detection equipment to solve the problem of large volume and complex optical path of the confocal microscopic Raman spectrometer in the background technology.

[0006] The technical problem solved by the present application is realized by the following technical scheme:

[0007] A microscopic Raman detection equipment, comprising:

[0008] A main body component, the main body component comprising a main shell, a top cover component and a bottom cover component;

[0009] A control adjusting component is arranged in the main shell;

[0010] An optical component is located inside the main shell, the optical component includes an optical slit, an optical support, a beam splitter support, a visible light near-infrared beam splitter, a double cemented mirror, an illumination assembly and a data transmission assembly, the visible light near-infrared beam splitter is installed on the beam splitter support, the optical slit, the beam splitter support, the double cemented mirror, the illumination assembly and the data transmission assembly are all installed on the optical support, the illumination assembly and the data transmission assembly are electrically connected with the main control board; the reflected laser through the visible light near-infrared beam splitter, then through the optical support channel, reaches the double cemented mirror, and the laser is converged on the sample through the double cemented mirror.

[0011] An imaging component.

[0012] Further, the top cover component is installed on the top of the main shell, the top cover component includes a top cover, a key, a display assembly and a main control board, the key, the display assembly and the main control board are respectively installed on the top cover, and the display assembly is electrically connected with the main control board.

[0013] The bottom cover component is installed on the bottom of the main shell, and the bottom cover component includes a bottom cover.

[0014] Further, the control adjustment component includes a three-dimensional moving platform assembly, a slide glass assembly, a transportation support and a battery assembly; the slide glass assembly is installed on the transportation support, the transportation support is installed on the three-dimensional moving platform assembly, the battery assembly is electrically connected with the main control board, one side of the main shell is provided with an adjustable support, one end of the adjustable support is provided with a hinge column, one side of the main shell is provided with a hinge hole matched with the hinge column, the hinge column is located in the hinge hole to enable the adjustable support to rotate, and a Raman spectrometer is arranged on the adjustable support.

[0015] Further, the imaging component is installed on the optical component, and the imaging component includes a CCD camera assembly, a lens and an infrared filter, the infrared filter and the CCD camera assembly are both installed on the lens, and the CCD camera assembly and the lens are electrically connected with the main control board.

[0016] Further, the slide glass assembly includes an upper cover, a slide glass and a lower cover, and the upper cover, the slide glass and the lower cover are adhesively connected.

[0017] The upper cover and the lower cover are made of aluminum alloy, and the slide glass is made of stainless steel.

[0018] Further, the bottom cover component further includes a first anti-skid pad and a second anti-skid pad, and the first anti-skid pad and the second anti-skid pad are installed on the lower bottom surface of the bottom cover.

[0019] Further, one side of the three-dimensional moving platform assembly is provided with a bracket, the bracket is provided with a wedge-shaped groove, and the transportation support is provided with a wedge-shaped convex strip matched with the wedge-shaped groove.

[0020] Further, the lighting assembly is an LED light source.

[0021] Further, the transportation support is provided with a limiting groove, and the object slide assembly is installed in the limiting groove.

[0022] Further, the top cover component further comprises a heating assembly installed on the top cover, and the heating assembly is electrically connected with the main control board.

[0023] The present application has the following advantages:

[0024] The present application can realize microscopic observation of the sample by magnifying the sample through CCD imaging technology, and can realize confocal of the sample and laser through movement of the object slide, and then detect the sample through the handheld Raman spectrometer, so that the combination of microscopic morphology and Raman spectrum of the sample can be realized. The device has simple optical path, compact structure, is convenient to carry, is suitable for field operation, has low cost, short production cycle and is convenient to manufacture. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structure schematic view of the main body component of the present application;

[0026] Figure 2 It is a structure schematic view of the imaging component of the present application;

[0027] Figure 3 It is a structure schematic view of the optical component of the present application;

[0028] Figure 4 It is a structure schematic view of the imaging component and the optical component of the present application;

[0029] Figure 5 It is a structure schematic view of the object slide assembly of the present application;

[0030] Figure 6 It is a whole assembly structure schematic view of the present application;

[0031] Figure 7 It is a working principle schematic view of the present application.

[0032] In the figure: 1 - main housing, 2 - top cover, 3 - positioning hole, 4 - button, 5 - heating assembly, 6 - display assembly, 7 - main control board, 8 - CCD camera assembly, 9 - lens, 10 - infrared filter, 11 - optical support, 12 - optical slit, 13 - beam splitter support, 14 - visible light and near infrared beam splitter, 15 - illumination assembly, 16 - double cemented lens, 17 - data transmission assembly, 18 - three-dimensional moving platform assembly, 19 - transportation support, 20 - limiting groove, 21 - slide glass assembly, 22 - battery assembly, 23 - bottom cover, 24 - adjustable support, 25 - hinged column, 26 - hinged hole, 27 - Raman spectrometer, 28 - first non-slip pad, 29 - second non-slip pad, 30 - wedge-shaped groove, 31 - wedge-shaped ridge, 32 - upper cover, 33 - slide glass, 34 - lower cover, 35 - bracket. DETAILED DESCRIPTION

[0033] Embodiments of the present disclosure will be described below with reference to the accompanying drawings, but it should be understood that the description is merely exemplary and is not intended to limit the scope of the present disclosure. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it will be apparent to one skilled in the art that one or more embodiments can be practiced without these specific details. In addition, in the following description, descriptions of well-known structures and techniques have been omitted to avoid unnecessarily obscuring the concept of the present disclosure.

[0034] The terms used herein are merely used to describe specific embodiments and are not intended to limit the present disclosure. The terms "include", "comprise" and the like used herein indicate the presence of the described features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0035] All terms used herein, including technical and scientific terms, have meanings commonly understood by one of ordinary skill in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having meanings consistent with the context of the present specification, and should not be interpreted in an idealized or overly formal manner.

[0036] In the case of using expressions similar to "at least one of A, B, and C, etc.", it should be generally interpreted as including one or more of the enumerated items (e.g., "a system having at least one of A, B, and C" should include, but not be limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B together, a system having A and C together, a system having B and C together, and / or a system having A, B, and C together, etc.).

[0037] As Figures 1-7 shown, a microscopic Raman detection device includes a main body component, an optical component, and an imaging component.

[0038] The main body component comprises a main shell 1, a top cover component and a bottom cover component;

[0039] The top cover component is installed on the top of the main shell 1, and the top cover component comprises a top cover 2, a button 4, a display assembly 6 and a main control board 7, the button 4 is installed on the top cover 2, the display assembly 6 and the main control board 7 are fixedly installed on the top cover 2 respectively, the display assembly 6 can be fixed on the top cover 2 by screws, and the display assembly 6 is electrically connected with the main control board 7.

[0040] The bottom cover component is installed on the bottom of the main shell 1, and the bottom cover component comprises a bottom cover 23, the bottom cover 23 is fixedly installed on the bottom of the main shell 1 by screws.

[0041] The main shell 1 is provided with a three-dimensional moving platform assembly 18, a carrier film assembly 21, a transportation support 19 and a battery assembly 22; the carrier film assembly 21 is installed on the transportation support 19, the transportation support 19 is installed on the three-dimensional moving platform assembly 18, the battery assembly 22 is electrically connected with the main control board 7, one side of the main shell 1 is provided with an adjustable support 24, one end of the adjustable support 24 is provided with a hinged column 25, one side of the main shell 1 is provided with a hinged hole 26 matched with the hinged column 25, the hinged column 25 is located in the hinged hole 26 to enable the adjustable support 24 to rotate, and a Raman spectrometer 27 is arranged on the adjustable support 24.

[0042] The optical component is located inside the main shell 1, and the optical component comprises an optical slit 12, an optical support 11, a beam splitter support 13, a visible light near-infrared beam splitter 14, a double-cemented mirror 16, an illumination assembly 15 and a data transmission assembly 17; the visible light near-infrared beam splitter 14 is installed on the beam splitter support 13 and can be cemented to the beam splitter support 13; the optical slit 12, the beam splitter support 13, the double-cemented mirror 16, the illumination assembly 15 and the data transmission assembly 17 are all installed on the optical support 11; the double-cemented mirror 16 can be cemented to the optical support 11; the beam splitter support 13 can be fixedly installed on the optical support 11 by screws; the optical slit 12 can be installed on the optical support 11 by cementing; the illumination assembly 15 and the data transmission assembly 17 can be fixedly installed on the optical support 11 by screws; the illumination assembly 15 and the data transmission assembly 17 are electrically connected with the main control board 7; laser reflected by the visible light near-infrared beam splitter passes through the optical support channel to the double-cemented mirror, and the laser is converged on the sample by the double-cemented mirror.

[0043] The imaging component is installed on the optical component, and the imaging component comprises a CCD camera assembly 8, a lens 9 and an infrared filter 10; the infrared filter 10 and the CCD camera assembly 8 are both installed on the lens 9; the CCD camera assembly 8 can be fixedly installed on the lens 9 by screws; the CCD camera assembly 8 and the lens 9 are electrically connected with the main control board 7.

[0044] The technical scheme enlarges the sample through the CCD imaging technology to realize microscopic observation of the sample, and can realize the confocal of the sample and the laser through the movement of the carrier sheet, and then detects the sample through the handheld Raman spectrometer, and finally realizes the combination of the microscopic morphology and the Raman spectrum of the sample. The device has simple light path, compact structure, is convenient to carry, is suitable for field operation, and has low cost, short production cycle and is convenient to manufacture.

[0045] The carrier sheet assembly 21 comprises an upper cover 32, a carrier sheet 33 and a lower cover 34, and the upper cover 32, the carrier sheet 33 and the lower cover 34 are bonded by high-temperature-resistant glue. Since the carrier sheet assembly requires high precision, the overall processing cannot meet the requirements, so a split structure is adopted to improve the roughness of the product and meet the design requirements.

[0046] The materials of the upper cover 32 and the lower cover 34 are aluminum alloy, and the material of the carrier sheet 33 is stainless steel. The device is convenient to process, has low cost, is structurally firm, is not easy to damage and has long service life.

[0047] The bottom cover part further comprises a first anti-skid pad 28 and a second anti-skid pad 29, and the first anti-skid pad 28 and the second anti-skid pad 29 are installed on the lower bottom surface of the bottom cover 23. The first anti-skid pad 28 and the second anti-skid pad 29 can be glued on the lower bottom surface of the bottom cover 23, and the functions of the first anti-skid pad and the second anti-skid pad mainly play the anti-skid effect of the device to increase the friction force between the device and the ground.

[0048] One side of the three-dimensional moving platform assembly 18 is provided with a bracket 35, the bracket 35 is provided with a wedge-shaped groove 30, and the transportation support 19 is provided with a wedge-shaped convex strip 31 matched with the wedge-shaped groove 30. Through the cooperation of the wedge-shaped convex strip and the wedge-shaped groove, the transportation support can slide on the bracket, so that the carrier sheet assembly is conveniently stored and taken.

[0049] The illumination assembly 15 is an LED light source. The LED light source has low cost, small size and high definition.

[0050] The top cover 2 is provided with a positioning hole 3, and the button 4 is installed in the positioning hole 3. The positioning hole mainly plays a limiting role for the button, and facilitates the quick installation of the button 4.

[0051] The transportation support 19 is provided with a limiting groove 20, and the carrier sheet assembly 21 is installed in the limiting groove 20. The limiting groove can realize the quick positioning and installation of the carrier sheet assembly, and the operation is convenient, accurate and rapid.

[0052] The top cover part further comprises a heating assembly 5, which is installed on the top cover 2 and electrically connected with the main control panel 7. The heating assembly can be fixedly installed on the top cover by means of gluing. The setting of the heating assembly can evaporate the solvent in the liquid sample, and then the detection is carried out. During operation, the carrier film assembly is placed on the heating assembly for evaporation, and then the carrier film is placed on the transport support for detection after evaporation.

[0053] The working principle of the present application is:

[0054] The Raman spectrometer emits laser light, which is reflected by a visible light near-infrared beam splitter and then focused on the sample on the carrier film through a double-glued mirror. Due to the Raman scattering phenomenon, the Raman spectrometer obtains the sample spectrum, thereby identifying the sample material. The carrier film can move in XYZ three directions, which facilitates the adjustment of the sample to the optimal focus position. The optimal focus position can be determined by observation and the display screen electrically connected with the CCD camera. When the laser focus and the sample displayed on the display screen coincide, it is the optimal focus position. The LED light source provides illumination for the CCD camera, and the industrial lens and the CCD camera provide real-time images for the display screen.

[0055] The above describes the embodiments of the present application in detail, but the content described is only the preferred embodiments of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the scope of the present application.

Claims

1. A micro-Raman detection apparatus, characterized by: The application relates to a microscopic Raman detection device. The device comprises a main body component, an optical component, an imaging component and a control adjustment component. The main body component comprises a main shell, a top cover component and a bottom cover component. The optical component is located inside the main shell and comprises an optical slit, an optical support, a beam splitter support, a visible light near-infrared beam splitter, a double-cemented mirror, an illumination assembly and a data transmission assembly. The visible light near-infrared beam splitter is installed on the beam splitter support. The optical slit, the beam splitter support, the double-cemented mirror, the illumination assembly and the data transmission assembly are all installed on the optical support. The illumination assembly and the data transmission assembly are electrically connected with a main control board. The laser reflected by the visible light near-infrared beam splitter passes through the optical support channel and reaches the double-cemented mirror. The double-cemented mirror converges the laser to the sample. The control adjustment component comprises a three-dimensional moving platform assembly, a slide assembly, a transportation support and a battery assembly. The slide assembly is installed on the transportation support. The transportation support is installed on the three-dimensional moving platform assembly. The battery assembly is electrically connected with the main control board. One side of the main shell is provided with an adjustable support. One end of the adjustable support is provided with a hinge column. One side of the main shell is provided with a hinge hole matched with the hinge column. The hinge column is located in the hinge hole to enable the adjustable support to rotate. The adjustable support is provided with a Raman spectrometer. The imaging component is installed on the optical component. The imaging component comprises a CCD camera assembly, an industrial lens and an infrared filter. The infrared filter and the CCD camera assembly are both installed on the lens. The CCD camera assembly and the industrial lens are electrically connected with the main control board.

2. The microscopic Raman detection device according to claim 1, wherein: The top cover component is installed on the top of the main shell. The top cover component comprises a top cover, a key, a display assembly and a main control board. The key, the display assembly and the main control board are respectively installed on the top cover. The display assembly is electrically connected with the main control board. The bottom cover component is installed on the bottom of the main shell. The bottom cover component comprises a bottom cover.

3. The microscopic Raman detection device according to claim 1, wherein: The slide assembly comprises an upper cover, a slide and a lower cover. The upper cover, the slide and the lower cover are adhesively connected. The upper cover and the lower cover are made of aluminum alloy. The slide is made of stainless steel.

4. The microscopic Raman detection device according to claim 1, wherein: The bottom cover component further comprises a first anti-skid pad and a second anti-skid pad. The first anti-skid pad and the second anti-skid pad are installed on the lower bottom surface of the bottom cover.

5. The microscopic Raman detection device according to claim 1, wherein: One side of the three-dimensional moving platform assembly is provided with a bracket. The bracket is provided with a wedge-shaped groove. The transportation support is provided with a wedge-shaped convex strip matched with the wedge-shaped groove.

6. The microscopic Raman detection device according to claim 1, wherein: The illumination assembly is an LED light source.

7. The microscopic Raman detection device of claim 3, wherein: The transport support is provided with a limiting groove, and the object slide assembly is installed in the limiting groove.

8. The microscopic Raman detection device according to claim 1, characterized in that: The top cover part further comprises a heating assembly, the heating assembly is installed on the top cover, and the heating assembly is electrically connected with the main control panel.

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