Novel visual portable spectrometer
By designing a small portable spectrometer, integrating wireless communication and high-efficiency optical lenses, the existing spectrometer's large size and limited communication problems are solved, and the spectral analysis of portability and high accuracy is achieved.
Patent Information
- Application Number
- CN202420867765.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The existing spectrometers have large size and weight, which are not convenient to carry. The communication methods mostly use wired communication, which is limited by the length of the communication signal line and has limited operating space.
A new visual portable spectrometer was designed, using a small housing, integrated lens, PCB motherboard and display, built-in 2048 pixel line array sensor and antenna module, supports Bluetooth and wireless links, and realizes wireless through Type-C and USB-B interfaces. Data transmission, integrating multiple optical lenses for chromatic aberration and polarized light elimination.
It achieves portability, reduces the difficulty of use and operating conditions, improves the accuracy of measurement data, removes wired communication restrictions, and is better than traditional spectrometers in size and weight, suitable for laboratories, factories and outdoor environments.
Smart Images
Figure CN222258474U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spectrometers, in particular to a novel visualized portable spectrometer. Background Art
[0002] A spectrometer is an advanced instrument that can perform accurate spectral analysis in different scenarios, decompose light signals into spectra of different wavelengths, and analyze the spectrum to understand the composition, structure, and properties of an object. It has been widely used in many fields, including environmental monitoring, food safety testing, medical research, material analysis, and production process control and finished product inspection in central laboratories in industries such as metallurgy, casting, machinery, metal processing, automobile manufacturing, nonferrous metals, aerospace, weapons, and chemicals. It can analyze a variety of metal and alloy samples, and can also perform accurate quantitative analysis of non-metallic elements and metallic elements in solid samples.
[0003] At present, there are many brands and models of spectrometers on the market, the commonly used ones are Konica Minolta spectrometer, Topcon spectrometer, etc. Foreign products are generally expensive to purchase, and the subsequent maintenance and repair costs are also relatively high; in addition, Konica Minolta CS-3000 series, length, width and height are 300*158*200mm (excluding lens and handle), weighing about 7.0kg, Topcon's SR-5AS, length, width and height are 422*130*244mm, weighing about 5.5g; the above-mentioned spectrometers all have the defects of large size and weight, which are not easy to carry; in addition, the communication method mostly adopts wired communication, which is limited by the length of the communication signal line and the operating space is limited. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a novel visual portable spectrometer.
[0005] The utility model solves the technical problem by adopting the following technical solution: a novel visual portable spectrometer, comprising a shell, a lens, a PCB mainboard, an optical path splitting dark box and a display screen, wherein the shell comprises an upper cover and a lower cover, the lower cover is sealed on the lower opening of the upper cover, the lens is mounted on the front end of the upper cover, and the rear end of the lens extends into the shell, and is connected to the optical path splitting dark box arranged in the shell, the optical path splitting dark box has a built-in array probe, and the array probe adopts a 2048-pixel linear array sensor, the main function of which is to receive radiation photons of visible light, and is an externally purchased component; the PCB mainboard and the display screen are both arranged in the shell at the rear of the optical path splitting dark box, and the display screen is located above the PCB mainboard, and is electrically connected to the PCB mainboard through a line; a Type-C interface and a USB-B interface are provided on the side of the upper cover, the Type-C interface is used for power charging and data communication, the USB-B interface is used for data communication, and the Type-C interface and the USB-B interface are both electrically connected to the PCB mainboard.
[0006] Furthermore, the upper cover is provided with a heat conduction groove, which is located on the upper cover of the optical path splitting dark box. The heat conduction groove is used to guide the heat emitted by the array probe during operation.
[0007] Furthermore, the lens comprises an achromatic depolarizer, a first high curvature lens, an H-ASP lens, a low dispersion lens, a second high curvature lens, a third high curvature lens, an ASP lens, an ultra-low dispersion lens and a lens barrel, wherein the achromatic depolarizer, the first high curvature lens, the H-ASP lens, the low dispersion lens, the second high curvature lens, the third high curvature lens, the ASP lens and the ultra-low dispersion lens are sequentially arranged in the lens barrel along the light incident direction, wherein the achromatic depolarizer is composed of two crystal quartz wedges glued or optically glued, one of which is twice as thick as the other; the optical axis of each wedge is parallel to the lens barrel, and the optical axis of each wedge is parallel to the lens barrel. On the light-passing surface, the angle between the optical axes of the two crystal quartz wedges is 45°, and the overall radius is 12.7mm; the curved surface shapes of the other lens surfaces are as follows: the first high curvature lens: the convex radius is 20.48mm, and the concave radius is 9.38mm; the H-ASP lens: the convex radius is 18.41mm, and the concave radius is 7.25mm; the low dispersion lens: flat, and the concave radius is 10.36mm; the second high curvature lens: the concave radius is 9.70mm, and the convex radius is 19.53mm; the third high curvature lens: the convex radius is 18.99mm, flat; ASP lens: convex radius is 8.86mm, convex radius is 8.86mm; ultra-low dispersion lens: convex radius is 5.27mm, convex radius is 9.75mm; the axial center distances between adjacent lenses are 7.15, 3.80, 3.97, 9.72, 1.38, 10.30, 3.34, unit: mm; the center thickness of each lens is 7.50, 0.75, 1.73, 0.69, 1.73, 1.15, 2.07, 4.66, unit: mm; among them, the second highest curvature lens and the third highest curvature lens are glued into one, and the ASP lens and the ultra-low dispersion lens are glued into one.
[0008] After the light passes through the achromatic depolarizer, the polarized light in the light is converted into randomly polarized light, and then enters the first high-curvature lens. After the light is aggregated, it passes through the H-ASP lens to reduce distortion and enable the light to be better focused on the low-dispersion lens. The low-dispersion lens can effectively reduce chromatic aberration. After the light is diverged on the low-dispersion lens, it is aggregated through two high-curvature lenses and reaches the ASP lens in parallel. The double-convex structure of the lens aggregates the light into a point and enters the instrument.
[0009] Furthermore, the shell has a built-in antenna module, and the antenna module is electrically connected to the PCB mainboard. The antenna module supports Bluetooth and wireless links, thereby realizing wireless communication and real-time data transmission, eliminating the trouble of wired restrictions.
[0010] Furthermore, a window for installing a display screen is provided on the upper surface of the upper cover, and a first through hole, a second through hole and a third through hole are provided on the side surface of the upper cover, the first through hole is used to install a lens, and when installed, the lens passes through the first through hole, the second through hole is used to install a Type-C interface, and the third through hole is used to install a USB-B interface; a plurality of first columns are circumferentially provided inside the side wall of the upper cover, and the first columns are used to connect the lower cover and the upper cover; a plurality of second columns are also provided inside the upper cover, and connecting ears that match the second columns one by one are provided on the outer periphery of the PCB mainboard, and the connecting ears are connected to the second columns to realize the support and fixation of the PCB mainboard; two interface connecting parts are also provided on the upper cover near the second through hole and the third through hole, and the two interface connecting parts are respectively used to support and fix the Type-C interface and the USB-B interface.
[0011] Preferably, the display screen is a 3-inch full-color touch display screen.
[0012] Furthermore, the dimensions of the shell are: length*width*height: 160*85*40mm, and the weight is 650g.
[0013] The beneficial effects of the utility model are as follows: the utility model provides a new type of visual portable spectrometer, (1) with an additional display screen, having a directly operable graphical display interface, which is convenient for manual operation, thereby reducing the difficulty and conditions of use; (2) with a series of optical lenses integrated in the optical light path design, which can eliminate chromatic aberration and polarized light in real time, thereby improving the accuracy of measurement data; (3) with an integrated built-in antenna, supporting Bluetooth, wireless and other links, and real-time data transmission, eliminating the trouble of wired restrictions; (4) with a highly integrated design, the size and weight are better than traditional spectrometers, which is convenient to carry and suitable for various environments such as laboratories, factories, and outdoors; (5) with the characteristics of simple structure, easy operation, low price, and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a structural schematic diagram of the utility model spectrometer.
[0016] Figure 2 It is a structural schematic diagram of the utility model spectrometer.
[0017] Figure 3 This is a schematic diagram of the internal structure of the spectrometer.
[0018] Figure 4 It is a structural schematic diagram of the upper cover.
[0019] Figure 5It is a schematic diagram of the top view structure of the spectrometer.
[0020] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure of AA.
[0021] Figure 7 It is a schematic diagram of the lens structure.
[0022] In the figure: 1. shell, 1.1. window, 1.2. first column, 1.3. second column, 1.4. interface connection part, 1.5. first through hole, 1.6. second through hole, 1.7. third through hole, 1.8. upper cover, 1.9. lower cover, 2. lens, 2.1. achromatic depolarizer, 2.2. first high curvature lens, 2.3. H-ASP lens, 2.4. low dispersion lens, 2.5. second high curvature lens, 2.6. third high curvature lens, 2.7. ASP lens, 2.8. ultra-low dispersion lens, 2.9. lens barrel, 3. heat conduction groove, 4. display screen, 5. Type-C interface, 6. USB-B interface, 7. optical path splitter dark box, 8. connecting ear, 9. PCB motherboard. DETAILED DESCRIPTION
[0023] The present invention is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter for which protection is sought is limited only by the attached claims and their equivalents.
[0024] like Figure 1-Figure 3As shown, a novel visualized portable spectrometer of the utility model comprises a housing 1, a lens 2, a PCB mainboard 9, an optical path splitter dark box 7 and a display screen 4, wherein the housing 1 comprises an upper cover 1.8 and a lower cover 1.9, the lower cover 1.9 is sealed on the lower opening of the upper cover 1.8, the lens 2 is mounted on the front end of the upper cover 1.8, and the rear end of the lens 2 extends into the housing 1 and is connected to the optical path splitter dark box 7 arranged in the housing 1, the optical path splitter dark box 7 has a built-in array probe, and the array probe adopts a 2048-pixel linear array sensor, the main function of which is to receive radiation photons of visible light, It belongs to purchased parts; the PCB main board 9 and the display screen 4 are both arranged in the housing 1 at the rear of the optical path splitting dark box 7, and the display screen 4 is located above the PCB main board 9 and is electrically connected to the PCB main board 9 through a line. As a preference, the display screen 4 is a 3-inch full-color touch display screen 4; the side of the upper cover 1.8 is provided with a Type-C interface 5 and a USB-B interface 6, the Type-C interface 5 is used for power charging and data communication, the USB-B interface 6 is used for data communication, and the Type-C interface 5 and the USB-B interface 6 are both electrically connected to the PCB main board 9. The housing 1 has a built-in antenna module, and the antenna module is electrically connected to the PCB main board 9. The antenna module supports Bluetooth and wireless links, thereby realizing wireless communication and real-time data transmission, eliminating the trouble of wired restrictions. The upper cover 1.8 is also provided with a heat conduction groove 3, and the heat conduction groove 3 is located on the upper cover 1.8 at the upper part of the optical path splitting dark box 7. The heat conduction groove 3 is used to guide the heat emitted by the array probe during operation.
[0025] like Figure 4As shown, the upper surface of the upper cover 1.8 is provided with a window 1.1 for installing the display screen 4, and the side of the upper cover 1.8 is provided with a first through hole 1.5, a second through hole 1.6 and a third through hole 1.7. The first through hole 1.5 is used to install the lens 2. When installed, the lens 2 passes through the first through hole 1.5. The second through hole 1.6 is used to install the Type-C interface 5, and the third through hole 1.7 is used to install the USB-B interface 6. The inner side wall of the upper cover 1.8 is provided with a plurality of first columns 1.2 along the circumferential direction. The first columns 1.2 are used for the lower cover 1.9. The lower cover 1.9 is connected to the upper cover 1.8 by screws; the upper cover 1.8 is also provided with a plurality of second columns 1.3, and the outer periphery of the PCB main board 9 is provided with connecting ears 8 that match the second columns 1.3 one by one, and the connecting ears 8 are connected to the second columns 1.3 to support and fix the PCB main board 9; the upper cover 1.8 is also provided with two interface connecting parts 1.4 near the second through hole 1.6 and the third through hole 1.7, and the two interface connecting parts 1.4 are respectively used to support and fix the Type-C interface 5 and the USB-B interface 6. The size of the housing 1 is: length * width * height is 160 * 85 * 40mm, and the weight is 650g. This size does not include the size of the lens 2 part, which greatly reduces the size and weight of the main body.
[0026] like Figure 5-Figure 7As shown, the lens 2 includes an achromatic depolarizer 2.1, a first high curvature lens 2.2, an H-ASP lens 2.3, a low dispersion lens 2.4, a second high curvature lens 2.5, a third high curvature lens 2.6, an ASP lens 2.7, an ultra-low dispersion lens 2.8 and a lens barrel 2.9, wherein the achromatic depolarizer 2.1, the first high curvature lens 2.2, the H-ASP lens 2.3, the low dispersion lens 2.4, the second high curvature lens 2.5, the third high curvature lens 2.6, the ASP lens 2.7, and the ultra-low dispersion lens 2.8 are sequentially arranged in the lens barrel 2.9 along the light incident direction, wherein the achromatic depolarizer 2.1 is composed of two crystal quartz wedges glued or optically glued, one of which is The thickness of one is twice that of the other; the optical axis of each wedge is parallel to the light-passing surface, the angle between the optical axes of the two crystal quartz wedges is 45°, and the overall radius is 12.7mm; the curved surface shapes of the remaining lens surfaces are: the first high curvature lens 2.2: the convex radius is 20.48mm, and the concave radius is 9.38mm; the H-ASP lens 2.3: the convex radius is 18.41mm, and the concave radius is 7.25mm; the low dispersion lens 2.4: flat, and the concave radius is 10.36mm; the second high curvature lens 2.5: the concave radius is 9.70mm, and the convex radius is 19.53mm; the third high curvature lens 2.6: the convex radius is 18.99mm, flat; ASP lens 2.7: convex radius is 8.86mm, convex radius is 8.86mm; ultra-low dispersion lens 2.8: convex radius is 5.27mm, convex radius is 9.75mm; the axial center distances between adjacent lenses are 7.15, 3.80, 3.97, 9.72, 1.38, 10.30, 3.34, unit: mm; the center thickness of each lens is 7.50, 0.75, 1.73, 0.69, 1.73, 1.15, 2.07, 4.66, unit: mm; among them, the second highest curvature lens and the third highest curvature lens are glued into one, and the ASP lens and the ultra-low dispersion lens are glued into one. Low-dispersion lenses are generally made of optical glass mixed with special oxides. They can eliminate the color dispersion phenomenon caused by different light passing through the optical glass, that is, eliminate chromatic aberration. Ultra-low-dispersion lenses are generally made of fluorite and can effectively eliminate all chromatic aberrations when used with other optical glasses. They are more effective than low-dispersion lenses, but more expensive.
[0027] Working principle:
[0028] When in use, the light emitted by the object to be tested passes through the lens 2 for a series of processing such as eliminating chromatic aberration and eliminating polarized light, enters the optical path splitter dark box 7, and is projected onto the array probe. After receiving the light radiation, the array probe gives an analog electrical signal, and the PCB main board 9 receives the analog electrical signal, performs AD conversion, and digitally quantifies the analog electrical signal to present the strength of the light radiation. It should be noted that the process of converting analog quantity into digital quantity can be realized by the prior art and does not involve the improvement of the present utility model.
[0029] In addition, the data processing and correction of the entire light radiation is a very complicated process. First, all visual matching functions of standard setting units such as CIE need to be stored in the system, and then the measured light radiation is matched with functions, and corrected with the data of the deployed standard light source, and then the data is calculated through various photometric calculation formulas. It is best to display various parameters and data or communicate them remotely to the computer. The content of this part involving data processing and algorithms is not the key point of the structure claimed by the utility model, so it will not be described in detail here.
[0030] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A new type of visual portable spectrometer, characterized by: It includes a shell, a lens, a PCB mainboard, an optical path splitting dark box and a display screen, wherein the shell includes an upper cover and a lower cover, the lower cover is sealed on the lower opening of the upper cover, the lens is installed at the front end of the upper cover, and the rear end of the lens extends into the shell and is connected to the optical path splitting dark box arranged in the shell, and the optical path splitting dark box has a built-in array probe; the PCB mainboard and the display screen are both arranged in the shell at the rear of the optical path splitting dark box, and the display screen is located above the PCB mainboard and is electrically connected to the PCB mainboard through a line; a Type-C interface and a USB-B interface are provided on the side of the upper cover, the Type-C interface is used for power charging and data communication, the USB-B interface is used for data communication, and the Type-C interface and the USB-B interface are both electrically connected to the PCB mainboard.
2. The novel visual portable spectrometer as claimed in claim 1, characterized in that: The upper cover is also provided with a heat conduction groove, and the heat conduction groove is located on the upper cover of the optical path splitting dark box.
3. The novel visual portable spectrometer as claimed in claim 1, characterized in that: The lens comprises an achromatic depolarizer, a first high curvature lens, an H-ASP lens, a low dispersion lens, a second high curvature lens, a third high curvature lens, an ASP lens, an ultra-low dispersion lens and a lens barrel, wherein the achromatic depolarizer, the first high curvature lens, the H-ASP lens, the low dispersion lens, the second high curvature lens, the third high curvature lens, the ASP lens and the ultra-low dispersion lens are sequentially arranged in the lens barrel along the incident direction of light, wherein the achromatic depolarizer is composed of two crystal quartz wedges glued or optically glued, wherein the thickness of one of the wedges is twice that of the other; the optical axis of each wedge is parallel to the light passing direction. The angle between the optical axes of the two crystal quartz wedges is 45°, and the overall radius is 12.7mm; the curved surface shapes of the other lens surfaces are as follows: the first high curvature lens: the convex radius is 20.48mm, the concave radius is 9.38mm; the H-ASP lens: the convex radius is 18.41mm, the concave radius is 7.25mm; the low dispersion lens: flat, the concave radius is 10.36mm; the second high curvature lens: the concave radius is 9.70mm, the convex radius is 19.53mm; the third high curvature lens: the convex radius is 18.99mm, flat; ASP lens: convex radius is 8.86mm, convex radius is 8.86mm; ultra-low dispersion lens: convex radius is 5.27mm, convex radius is 9.75mm; the axial center distances between adjacent lenses are 7.15, 3.80, 3.97, 9.72, 1.38, 10.30, 3.34, unit: mm; the center thickness of each lens is 7.50, 0.75, 1.73, 0.69, 1.73, 1.15, 2.07, 4.66, unit: mm; among them, the second highest curvature lens and the third highest curvature lens are glued into one, and the ASP lens and the ultra-low dispersion lens are glued into one.
4. The novel visual portable spectrometer according to claim 1, characterized in that: The shell has a built-in antenna module, the antenna module is electrically connected to the PCB mainboard, and the antenna module supports Bluetooth and wireless links.
5. The novel visual portable spectrometer as claimed in claim 1, characterized in that: A window for installing a display screen is provided on the upper surface of the upper cover, and a first through hole, a second through hole and a third through hole are provided on the side surface of the upper cover, wherein the first through hole is used to install a lens, the second through hole is used to install a Type-C interface, and the third through hole is used to install a USB-B interface; a plurality of first columns are circumferentially provided inside the side wall of the upper cover, and the first columns are used to connect the lower cover with the upper cover; a plurality of second columns are also provided inside the upper cover, and connecting ears matching the second columns one by one are provided on the outer periphery of the PCB mainboard, and the connecting ears are connected to the second columns to realize the support and fixation of the PCB mainboard; two interface connecting parts are also provided on the upper cover near the second through hole and the third through hole, and the two interface connecting parts are respectively used to support and fix the Type-C interface and the USB-B interface.
6. The novel visual portable spectrometer according to claim 1, characterized in that: The display screen is a 3-inch full-color touch display screen.
7. The novel visual portable spectrometer according to claim 1, characterized in that: The dimensions of the shell are: length*width*height: 160*85*40mm, and the weight is 650g.