CN212321445U - A accurate focus testboard for desk-top raman spectroscopy appearance - Google Patents
A accurate focus testboard for desk-top raman spectroscopy appearance Download PDFInfo
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- CN212321445U CN212321445U CN202020992020.2U CN202020992020U CN212321445U CN 212321445 U CN212321445 U CN 212321445U CN 202020992020 U CN202020992020 U CN 202020992020U CN 212321445 U CN212321445 U CN 212321445U
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Abstract
The utility model discloses an accurate focus testboard for desk-top raman spectroscopy appearance, include: the device comprises a reference seat, a first fixing device and a second fixing device, wherein the reference seat is provided with a transmission light path channel with two open ends; the transmission optical path system comprises a transmission optical fiber with one end extending into the inlet of the transmission optical path channel and a focusing mirror module arranged at the outlet of the transmission optical path channel; the lower end of the end cover is installed at the upper end of the reference seat through threaded connection, and the end cover is provided with an end cover through hole which is positioned right above the outlet of the transmission light path channel; the utility model can select a proper end cover to be installed on the reference seat according to the actual size of the sample to be measured; and the end cover lower extreme passes through accurate screw thread and installs the benchmark seat upper end, through precession or screw-out end cover, makes the end cover can reciprocate along this focus lens module's optical axis direction for focus lens module to can pinpoint the focus position, and then make the test result more accurate.
Description
Technical Field
The utility model relates to a raman spectroscopy appearance technical field especially relates to an accurate focus test platform for desk-top raman spectroscopy appearance.
Background
The raman spectroscopy technique is a technique for detecting based on raman scattering generated by interaction of light with a substance; raman spectroscopy has the characteristics of being non-destructive, non-invasive, sample-processing-free, information-rich, high analysis efficiency, and each molecule has a characteristic raman spectrum corresponding thereto, and thus has been widely used in the fields of biology, chemistry, medical treatment, food safety, aerospace, environmental protection, and the like.
However, the existing test probe for the bench-type raman spectrometer has the following problems: 1. the opening of the test probe is too large and even larger than the sample to be tested, so that the accurate test or the test cannot be carried out; 2. the focusing point cannot be accurately adjusted, so that the testing accuracy is influenced; 3. the test area is unprotected during testing, and the test light can affect the eyes of testers, so that a corresponding structure needs to be designed to solve the problems.
SUMMERY OF THE UTILITY MODEL
In view of this, at least one of the above-mentioned defects in the prior art needs to be overcome, the present invention provides an accurate focus test bench for a bench-type raman spectrometer, comprising: the device comprises a reference seat, a first fixing device and a second fixing device, wherein the reference seat is provided with a transmission light path channel with two open ends; the transmission optical path system comprises a transmission optical fiber with one end extending into the inlet of the transmission optical path channel and a focusing mirror module arranged at the outlet of the transmission optical path channel; and the lower end of the end cover is installed at the upper end of the reference seat through threaded connection, and the end cover is provided with an end cover through hole which is positioned right above the outlet of the transmission light path channel.
According to the background art, the following problems exist with existing test probes: the opening of the test probe is too large, so that the test cannot be accurately carried out or cannot be carried out; the focus point cannot be accurately adjusted; the test area is not protected during testing; the utility model discloses an accurate focusing test board for desk-top Raman spectrometer, which comprises a plurality of end covers with end cover through holes of different sizes, wherein each end cover can be detachably arranged at the upper end of a reference seat, therefore, the scheme can select a proper end cover to be arranged on the reference seat according to the actual size of a sample to be tested; and the end cover lower extreme passes through accurate screw thread and installs the benchmark seat upper end, through precession or screw-out end cover, makes the end cover can reciprocate along this focus lens module's optical axis direction for focus lens module to can pinpoint the focus position, and then make the test result more accurate.
In addition, according to the utility model discloses an accurate focus testboard for desk-top raman spectroscopy still has following additional technical characterstic:
further, the transmission light path channel is an L-shaped channel formed by a longitudinal channel and a transverse channel positioned at the lower end of the longitudinal channel; the transmission optical path system further comprises a reflector, the reflector is arranged at an inflection point of the L-shaped channel, and one end of the transmission optical fiber extends into the transverse channel; the focusing lens module is installed at the upper end of the longitudinal channel.
Further, the reflector is a 45 degree angle reflector.
Further, the precision focus test bench further comprises a protective cover for placing on the reference seat.
Further, the precision focus test stand comprises a plurality of the end caps; the plurality of end caps respectively have the end cap through holes with different apertures.
The reference base comprises a reference table and a fixed base arranged on the upper end face of the reference table through a fastener, the reference table is provided with a reference table light path channel, the lower end of the focusing lens module is arranged at the outlet end of the reference table light path channel, and one end of the transmission optical fiber extends into the inlet of the reference table light path channel; the fixed seat is arranged on the reference table and is provided with a fixed seat through hole for accommodating the focusing lens module; the reference platform light path channel and the fixing seat through hole form the transmission light path channel.
Furthermore, the side face of the upper end of the fixed seat is provided with an external thread, and the lower end of the end cover is provided with a hole with an internal thread matched with the external thread.
Further, the external thread and the internal thread are fine threads.
Further, the protective cover is used for being placed on the upper end face of the reference table.
During testing, a sample to be tested is placed on the upper surface of the end cover with the position adjusted, the protective cover is placed on the upper end face of the reference table, the whole testing area is sealed through the protective cover, and the eyes of a tester are prevented from being injured by testing light.
Further, the lower end of the focusing lens module is installed on the side wall of the optical path channel of the reference platform in a threaded connection mode.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a precision focus test bench for a bench-type raman spectrometer according to an embodiment of the present invention.
Wherein, 1 is transmission fiber, 2 is the speculum, 3 is the benchmark platform, 4 are hexagon socket head cap screws, 5 are the fixing base, 6 are the focusing mirror module, 7 are the end cover, 8 are the safety cover.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout; the embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "lateral", "vertical", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the method or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "coupled," "communicating," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly connected, integrally connected, or detachably connected; may be communication within two elements; can be directly connected or indirectly connected through an intermediate medium; the term "fit" can be a surface-to-surface fit, a point-to-surface or a line-to-surface fit, and also includes a hole-axis fit, and a person skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.
The utility model is conceived as follows, and provides an accurate focusing test board for a desk-top Raman spectrometer, which comprises a plurality of end covers with end cover through holes of different sizes, wherein each end cover can be detachably arranged at the upper end of a reference seat, so that a proper end cover can be selected to be arranged on the reference seat according to the actual size of a sample to be measured; and the end cover lower extreme passes through accurate screw thread and installs the benchmark seat upper end, through precession or screw-out end cover, makes the end cover can reciprocate along this focus lens module's optical axis direction for focus lens module to can pinpoint the focus position, and then make the test result more accurate.
The present invention will be described with reference to the accompanying drawings, wherein fig. 1 is a schematic structural diagram of a precision focus test bench for a bench-type raman spectrometer according to an embodiment of the present invention.
As shown in fig. 1, according to an embodiment of the present invention, the accurate focusing test bench for a table-type raman spectrometer includes a reference base having a transmission optical path channel with two open ends; the transmission optical path system comprises a transmission optical fiber 1 with one end extending into the inlet of the transmission optical path channel and a focusing lens module 6 arranged at the outlet of the transmission optical path channel; and the lower end of the end cover 7 is installed at the upper end of the reference seat through threaded connection, and the end cover 7 is provided with an end cover through hole which is positioned right above the outlet of the transmission light path channel.
According to the background art, the following problems exist with existing test probes: the opening of the test probe is too large, so that the test cannot be accurately carried out or cannot be carried out; the focus point cannot be accurately adjusted; the test area is not protected during testing; the utility model discloses an accurate focusing test board for desk-top Raman spectrometer, including a plurality of end covers 7 that have different size end cover perforating holes respectively, every end cover 7 all can detachably install in the upper end of reference seat, therefore, the present case can be according to the actual size of the sample to be measured, select suitable end cover 7 to install on the reference seat; and, the end cover 7 lower extreme passes through accurate screw thread to be installed the reference base upper end, through precession or screw-out end cover 7, make end cover 7 can reciprocate along this focusing mirror module 6's optical axis direction for focusing mirror module 6 to can pinpoint the focus position, and then make the test result more accurate.
In addition, according to the utility model discloses an accurate focus testboard for desk-top raman spectroscopy still has following additional technical characterstic:
according to an embodiment of the present invention, the transmission light path channel is an L-shaped channel formed by a longitudinal channel and a transverse channel located at a lower end of the longitudinal channel; the transmission optical path system further comprises a reflector 2, the reflector 2 is arranged at the corner of the L-shaped channel, and one end of the transmission optical fiber 1 extends into the transverse channel; the focusing lens module 6 is arranged at the upper end of the longitudinal channel.
According to an embodiment of the present invention, the mirror 2 is a 45 degree angle mirror.
According to the utility model discloses an embodiment, accurate focus test bench still includes and is used for placing safety cover 8 on the reference standard.
According to an embodiment of the present invention, said precision focus test bench comprises a plurality of said end caps 7; the plurality of end caps 7 have the end cap through holes having different diameters.
According to an embodiment of the present invention, the reference base includes a reference table 3 and a fixing base 5 mounted on an upper end surface of the reference table 3 through a fastener, the reference table 3 has a reference table light path channel, a lower end of the focusing lens module 6 is mounted at an outlet end of the reference table light path channel, and one end of the transmission optical fiber 1 extends into an inlet of the reference table light path channel; the fixed seat 5 is arranged on the reference table 3 and is provided with a fixed seat through hole for accommodating the focusing lens module 6; the reference platform light path channel and the fixing seat through hole form the transmission light path channel.
According to an embodiment of the present invention, the fastener is a socket head cap screw 4.
According to the utility model discloses an embodiment, the upper end side of fixing base 5 is provided with the external screw thread, 7 lower extremes of end cover be provided with the internal screw thread hole of external screw thread matched with.
According to an embodiment of the invention, the external thread and the internal thread are fine threads.
According to an embodiment of the present invention, the protection cover 8 is used for being placed on the upper end surface of the reference table 3.
During testing, a sample to be tested is placed on the upper surface of the end cover 7 with the position adjusted, the protective cover 8 is placed on the upper end surface of the reference table 3, the whole testing area is sealed through the protective cover 8, and the eyes of a tester are prevented from being injured by testing light.
According to the utility model discloses an embodiment, focusing mirror module 6's lower extreme is installed through threaded connection's mode on the lateral wall of benchmark platform light path passageway.
Any reference to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention; the schematic representations in various places in the specification do not necessarily refer to the same embodiment; further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.
While the invention has been described in detail with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention; in particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the appended claims without departing from the spirit of the invention; except variations and modifications in the component parts and/or arrangements, the scope of which is defined by the appended claims and equivalents thereof.
Claims (7)
1. A precision focus test bench for bench-top Raman spectrometers, comprising:
the device comprises a reference seat, a first fixing device and a second fixing device, wherein the reference seat is provided with a transmission light path channel with two open ends;
the transmission optical path system comprises a transmission optical fiber with one end extending into the inlet of the transmission optical path channel and a focusing mirror module arranged at the outlet of the transmission optical path channel; and
the lower end of the end cover is installed at the upper end of the reference seat through threaded connection, and the end cover is provided with an end cover through hole which is located right above the outlet of the transmission light path channel.
2. The precision focusing test bench for bench-type raman spectrometer of claim 1, wherein the transmission light path channel is an L-shaped channel formed by a longitudinal channel and a transverse channel at a lower end of the longitudinal channel; the transmission optical path system further comprises a reflector, the reflector is arranged at an inflection point of the L-shaped channel, and one end of the transmission optical fiber extends into the transverse channel; the focusing lens module is installed at the upper end of the longitudinal channel.
3. The precision focus test bench for bench-top raman spectrometers of claim 2, wherein said mirror is a 45 degree angle mirror.
4. The precision focus test stand for a bench-top raman spectrometer of claim 1, further comprising a protective cover for placing on the reference base.
5. The precision focus test station for a bench-top raman spectrometer of claim 1, wherein said precision focus test station comprises a plurality of said end caps; the plurality of end caps respectively have the end cap through holes with different apertures.
6. The accurate focusing test bench for the bench-type raman spectrometer according to claim 1, wherein the reference bench comprises a reference bench and a fixed base, the reference bench has a reference bench optical path channel, the lower end of the focusing lens module is installed at the outlet end of the reference bench optical path channel, and one end of the transmission optical fiber extends into the inlet of the reference bench optical path channel; the fixed seat is arranged on the reference table and is provided with a fixed seat through hole for accommodating the focusing lens module; the reference platform light path channel and the fixing seat through hole form the transmission light path channel.
7. The precision focusing test bench for the bench-type raman spectrometer of claim 6, wherein the lower end of the focusing lens module is mounted on the sidewall of the optical path channel of the reference bench by means of screw connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020992020.2U CN212321445U (en) | 2020-06-03 | 2020-06-03 | A accurate focus testboard for desk-top raman spectroscopy appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020992020.2U CN212321445U (en) | 2020-06-03 | 2020-06-03 | A accurate focus testboard for desk-top raman spectroscopy appearance |
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| Publication Number | Publication Date |
|---|---|
| CN212321445U true CN212321445U (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020992020.2U Active CN212321445U (en) | 2020-06-03 | 2020-06-03 | A accurate focus testboard for desk-top raman spectroscopy appearance |
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| CN (1) | CN212321445U (en) |
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