CN214149581U - Portable spectrometer capable of switching slits - Google Patents
Portable spectrometer capable of switching slits Download PDFInfo
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- CN214149581U CN214149581U CN202022662751.3U CN202022662751U CN214149581U CN 214149581 U CN214149581 U CN 214149581U CN 202022662751 U CN202022662751 U CN 202022662751U CN 214149581 U CN214149581 U CN 214149581U
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- slit
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- ccd detector
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Abstract
The utility model provides a portable spectrum appearance of changeable slit, including the casing to and the optical device of integration in the casing, optical device includes collimating mirror, reflection grating, the focusing mirror that arranges along the light path to and CCD detector, slit adjusting device is installed to the position of casing light source incidence, slit adjusting device sets up the different slit of a plurality of widths, through the rotation slit adjusting device makes the light source incide to from the slit of difference in the casing, shine on the CCD detector after the optical device reflection. The utility model discloses a rotatory different slits that can adjust have greatly improved the universality of equipment, select the slit that corresponds the width to the analysis of different light that awaits measuring, can fully avoid the parasitic light to the influence of measured light linear energy and quantity, obtain more accurate spectral pattern, reduce experiment measuring error, improved the experiment accuracy.
Description
Technical Field
The utility model relates to a spectrum appearance technical field, in particular to portable spectrum appearance of changeable slit.
Background
A spectrum analyzer, an important optical instrument that can decompose complex light into spectral lines, decomposes the light to be studied according to wavelength or wave number by measuring the spectral composition of the light to be studied, including its wavelength, intensity, profile, etc., to obtain the distribution of the energy of the light according to wavelength; and displaying and recording the decomposed light waves and intensities according to the distribution of the wavelengths or the beams to obtain a spectrogram. Thereby, the optical characteristics such as the structure and the component of the substance can be identified, measured, analyzed, and the like. At present, the method and the device can be widely applied to a plurality of fields such as color measurement, concentration detection of chemical components or electromagnetic radiation analysis.
However, the conventional spectrometer has large volume, high power consumption, high cost and fixed slit width, and has severely restricted the rapid development of the modern spectral analysis technology. Miniaturization becomes an important development direction, and aiming at wide requirements of various fields on a micro spectrometer, the fixed width of a slit of the spectrometer causes poor universality of the micro spectrometer.
Therefore, in view of the problems in the prior art, a portable spectrometer with switchable slits is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable spectrum appearance of changeable slit, the spectrum appearance includes the casing to and
an optical device integrated in the housing, the optical device including a collimating mirror, a reflective grating, a focusing mirror arranged along an optical path, and a CCD detector,
the slit adjusting device is provided with a plurality of slits with different widths, and the slit adjusting device is rotated to enable the light source to be incident into the shell from different slits and irradiate onto the CCD detector after being reflected by the optical device.
Preferably, the slit adjusting device is a circular sheet structure, and the slit width increases in sequence every 45 degrees of rotation with the circle center as the center of rotation.
Preferably, the slit adjusting means is fixed within a circular cylindrical member rotatably mounted on a hexagonal mounting member fixed to the housing;
when the circular cylindrical member is rotated, the circular cylindrical member brings the slit adjusting device to rotate relative to the hexagonal mounting member.
Preferably, the collimating mirror and the focusing mirror are both spherical mirrors.
Preferably, the reflective grating is a reflective blazed grating.
Preferably, the CCD detector is connected to a data line interface, and the spectral pattern collected by the CCD detector is transmitted to a computer through a data line.
The utility model provides a pair of portable spectrum appearance of changeable slit considers the contradiction of miniature spectrum appearance wide spectral range and high resolution, through the design of rotatory switching slit, realizes the wide application in broad spectrum, the miniature spectrum appearance of high resolution based on plane reflection formula diffraction grating.
The utility model provides a pair of portable spectrum appearance of changeable slit can adjust different slits through the rotation, has greatly improved the universality of equipment, selects the slit that corresponds the width to the analysis of different light that awaits measuring, can fully avoid the parasitic light to the influence of measured light linear energy and quantity, obtains more accurate spectral pattern, reduces experiment measuring error, has improved the experiment accuracy.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, as claimed.
Drawings
Further objects, functions and advantages of the present invention will become apparent from the following description of embodiments of the present invention, with reference to the accompanying drawings, in which:
fig. 1 schematically shows a schematic light path diagram of a portable spectrometer with switchable slits according to the present invention.
Fig. 2 shows a schematic view of the slit adjusting device installation of the portable spectrometer with switchable slit according to the present invention.
Detailed Description
The objects and functions of the present invention and methods for accomplishing the same will be apparent by reference to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in different forms. The nature of the description is merely to assist those skilled in the relevant art in a comprehensive understanding of the specific details of the invention.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.
The utility model provides a portable spectrum appearance of changeable slit, as shown in figure 1 the utility model relates to a light path schematic diagram of portable spectrum appearance of changeable slit, according to the utility model discloses an embodiment, the spectrum appearance includes casing 1 to and integrated optical device in casing 1.
The optics include a collimator lens 2, a reflection grating 3, a focusing lens 4, and a CCD detector 5 arranged along an optical path 10. The CCD detector 5 is connected with the data line interface 6, and the spectral pattern collected by the CCD detector 5 is transmitted to the computer through the data line. In this embodiment, the collimating mirror 2 and the focusing mirror 4 are both spherical reflectors, and the reflective grating 3 is a reflective blazed grating.
According to the utility model discloses a slit adjusting device 7 is installed at the position of light source incidence to casing 1, and slit adjusting device 7 sets up the different slit 701 of a plurality of widths, through rotatory slit adjusting device 7, makes the light source follow the slit of difference incide to the casing 1 in, shines on CCD detector 5 after the optics reflection.
According to the utility model discloses an embodiment, slit adjusting device 7 is circular sheet structure to the centre of a circle is the rotation center, and every rotation 45, slit width increases in proper order. In this embodiment, the slit widths are continuously adjustable at 0.01, 0.05mm, 0.1mm, 0.15mm, 0.20mm, 0.25mm, 0.30mm, and 0.35 mm, respectively.
As shown in fig. 2, the slit adjusting device of the portable spectrometer with switchable slits of the present invention is schematically installed, the slit adjusting device 7 is fixed in a circular cylindrical member 702, the circular cylindrical member 702 is rotatably installed on a hexagonal mounting member 703, and the hexagonal mounting member 703 is fixed on the housing 1.
When the circular cylindrical member 702 is rotated, the circular cylindrical member 402 causes the slit adjusting device 7 to rotate 703 relative to the hexagonal mounting.
The utility model provides a pair of portable spectrum appearance of changeable slit during the use, optic fibre 9 connects fiber probe 8, the light source shines out from fiber probe 8, after adjusting device 7 through the slit, shine collimating mirror 2 and carry out the collimation, reflect to reflection grating 3 again on, the groove density of grating is 600L/mm, light passes through reflection grating 3 diffraction, rethread focusing mirror 4 focuses on, shine on CCD detector 5, after the data that the collection card will be gathered are handled, transmit the computer.
When analyzing different light rays to be measured, the slit with the corresponding width is selected by rotating the slit adjusting device 7 (a direction in fig. 1) to perform spectrum analysis.
The utility model provides a pair of portable spectrum appearance of changeable slit considers the contradiction of miniature spectrum appearance wide spectral range and high resolution, through the design of rotatory switching slit, realizes the wide application in broad spectrum, the miniature spectrum appearance of high resolution based on plane reflection formula diffraction grating.
The utility model provides a pair of portable spectrum appearance of changeable slit can adjust different slits through the rotation, has greatly improved the universality of equipment, selects the slit that corresponds the width to the analysis of different light that awaits measuring, can fully avoid the parasitic light to the influence of measured light linear energy and quantity, obtains more accurate spectral pattern, reduces experiment measuring error, has improved the experiment accuracy.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (6)
1. A portable spectrometer with switchable slits, the spectrometer comprising a housing, and
an optical device integrated in the housing, the optical device including a collimating mirror, a reflective grating, a focusing mirror arranged along an optical path, and a CCD detector,
the slit adjusting device is provided with a plurality of slits with different widths, and the slit adjusting device is rotated to enable the light source to be incident into the shell from different slits and irradiate onto the CCD detector after being reflected by the optical device.
2. The spectrometer of claim 1, wherein the slit adjusting device is a circular plate-shaped structure, and the slit width increases sequentially every 45 ° of rotation with the center of the circle as a center of rotation.
3. The spectrometer of claim 2, wherein the slit adjustment device is secured within a cylindrical member rotatably mounted on a hex mount secured to the housing;
when the circular cylindrical member is rotated, the circular cylindrical member brings the slit adjusting device to rotate relative to the hexagonal mounting member.
4. The spectrometer of claim 1, wherein the collimating mirror and the focusing mirror are spherical mirrors.
5. The spectrometer of claim 1, wherein the reflection grating is a reflective blazed grating.
6. The spectrometer of claim 1, wherein the CCD detector is connected to a data line interface for transmitting the spectral pattern collected by the CCD detector to a computer via a data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022662751.3U CN214149581U (en) | 2020-11-17 | 2020-11-17 | Portable spectrometer capable of switching slits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022662751.3U CN214149581U (en) | 2020-11-17 | 2020-11-17 | Portable spectrometer capable of switching slits |
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| CN214149581U true CN214149581U (en) | 2021-09-07 |
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| CN202022662751.3U Active CN214149581U (en) | 2020-11-17 | 2020-11-17 | Portable spectrometer capable of switching slits |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429959A (en) * | 2023-06-14 | 2023-07-14 | 山东悟空仪器有限公司 | Multi-slit switching structure for detector |
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- 2020-11-17 CN CN202022662751.3U patent/CN214149581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429959A (en) * | 2023-06-14 | 2023-07-14 | 山东悟空仪器有限公司 | Multi-slit switching structure for detector |
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