CN201780271U - Laser Raman spectrometer multi-wave excitation device - Google Patents
Laser Raman spectrometer multi-wave excitation device Download PDFInfo
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- CN201780271U CN201780271U CN2010202443603U CN201020244360U CN201780271U CN 201780271 U CN201780271 U CN 201780271U CN 2010202443603 U CN2010202443603 U CN 2010202443603U CN 201020244360 U CN201020244360 U CN 201020244360U CN 201780271 U CN201780271 U CN 201780271U
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Abstract
A laser Raman spectrometer multi-wave excitation device comprises a plurality of groups of cut-off filters. The technical scheme of the excitation device includes that the cut-off filters are arranged on the same optical axis of a testing excitation optical path of a laser excitation sample. Cut-off points of the cut-off filters are larger or smaller than laser wavelength; the cut-off filters and laser devices with corresponding wavelengths are adapted into a single-type filter array combination or a mixed-type filter array combination with a fixed relative position; the single-type filter array combination combines 'high-pass and low-return' filters or 'low-pass and high-return' filters; the mixed-type filter array combination combines 'high-pass and low-return' filters with 'low-pass and high-return' filters or 'low-pass and high-return' filters with 'high-pass and low-return' filters; and a plurality of different laser beam excitation samples are realized by turning on or off the laser devices with different wavelengths. The excitation device overcomes the shortcomings of necessary frequent replacement of corresponding laser devices, consequently caused repeated correction and the like of a traditional testing method, and is suitable for a laser transmission optical path system for the laser excitation samples with different wavelengths.
Description
Technical field
The utility model relates to a kind of multi-wave excitation device of laser Raman spectrometer.
Background technology
The Raman scattering phenomenon more and more has been subjected to paying close attention to widely because Raman spectrum has outstanding features such as abundant information, Raman shift and incident light frequency-independent, analysis efficiency height and amount of samples are few since nineteen twenty-eight is found by India physicist Raman.In recent years, Raman spectrometer can detect composition, content of material etc. accurately, has become the important research meanses of various fields such as chemical analysis, surface chemistry, mineralogy, semiconductor material, archaeology.For strengthen laser to the launching efficiency of sample, improve Raman scattering intensity, avoid fluorescence, the outside optical system in the instrument needs different wavelength of laser device excited sample according to various sample situations.Traditional method is by changing corresponding laser instrument, reach the effect of " multi-wave excitation ", the shortcoming of doing like this is that light path is regulated difficulty, the calibration of carrying out machinery, the collimation of light path, adjustment of laser instrument or the like require a great deal of time, thereby incur loss through delay Measuring Time, increase the measurement cost, make troubles to measurement, the stability of instrument integral body also is greatly affected.
Summary of the invention
At above-mentioned situation, the purpose of this utility model provides a kind of simple in structure, carrier is good, function increases, cost reduces, and regulates efficient and measuring accuracy and improves, and prolong serviceable life, need not drop into new equipment, be convenient to the outer light path multi-wave excitation device of laser Raman spectrometer of multi-wavelength's laser excitation sample of penetration and promotion.
To achieve these goals, a kind of multi-wave excitation device of laser Raman spectrometer, it is included in and the array cut off is set greater than optical maser wavelength or the cut off cutoff filter less than optical maser wavelength in the same optical axis of sample test excitation light path, cutoff filter is adapted to relative position fixing " high pass is low anti-" single type filter array combination that combine with " high pass is low anti-" or that " low pass is high anti-" combines with " low pass is high anti-" and " low pass is high anti-" mixed type filter array combination that combine with " high pass is low anti-" or that " high pass is low anti-" combines with " low pass is high anti-" with the corresponding wavelength laser instrument, and, realize several different wavelength of laser excited sample through the Kai Heguan of different wave length laser instrument.
For implementation structure optimization, its further step also has.
" high pass is low anti-" with the single type filter array combination that " high pass is low anti-" combines is: cut off is greater than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
1Be adapted to reflected light path and cut off " high pass is low anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-A greater than optical maser wavelength
12-B is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
1With corresponding wavelength laser instrument 2-B through cutoff filter 1-F
1Reflection is adapted to transmitted light path; Cut off is less than " high pass is low anti-" cutoff filter 1-F of optical maser wavelength
1And 1-L
12-C is adapted to transmitted light path with the corresponding wavelength laser instrument.
" low pass is high anti-" with the single type filter array combination that " low pass is high anti-" combines is: cut off is less than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
2Be adapted to reflected light path and cut off " low pass is high anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-C less than optical maser wavelength
22-B is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is greater than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
2With corresponding wavelength laser instrument 2-B through cutoff filter 1-F
2Reflection is adapted to transmitted light path; Cut off is greater than " low pass is high anti-" cutoff filter 1-F of optical maser wavelength
2And 1-L
22-A is adapted to transmitted light path with the corresponding wavelength laser instrument.
" low pass is high anti-" with the mixed type filter array combination that " high pass is low anti-" combines is: cut off is less than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
3Be adapted to reflected light path and cut off " high pass is low anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-C greater than optical maser wavelength
32-A is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
3With corresponding wavelength laser instrument 2-A through cutoff filter 1-F
3Reflection is adapted to transmitted light path; Cut off is less than " high pass is low anti-" cutoff filter 1-F of optical maser wavelength
3With cut off " low pass is high anti-" cutoff filter 1-L greater than optical maser wavelength
32-B is adapted to transmitted light path with the corresponding wavelength laser instrument.
" high pass is low anti-" with the mixed type filter array combination that " low pass is high anti-" combines is: cut off is greater than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
4Be adapted to reflected light path and cut off " low pass is high anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-A less than optical maser wavelength
42-C is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
4With corresponding wavelength laser instrument 2-C warp " low pass is high anti-" cutoff filter 1-F
4Reflection is adapted to transmitted light path; Cut off is greater than " low pass is high anti-" cutoff filter 1-F of optical maser wavelength
4With cut off " high pass is low anti-" cutoff filter 1-L less than optical maser wavelength
42-B is adapted to transmitted light path with the corresponding wavelength laser instrument.
The utility model adopts and the array cut off to be set greater than optical maser wavelength or the cut off cutoff filter less than optical maser wavelength in the same optical axis be included in the sample test excitation light path, cutoff filter is adapted to relative position fixing " high pass is low anti-" single type filter array combination that combine with " high pass is low anti-" or that " low pass is high anti-" combines with " low pass is high anti-" and " low pass is high anti-" mixed type filter array combination that combine with " high pass is low anti-" or that " high pass is low anti-" combines with " low pass is high anti-" with the corresponding wavelength laser instrument, and through the Kai Heguan of different wave length laser instrument, realize the technical scheme of several different wavelength of laser excited sample, it has overcome conventional test methodologies and must frequently change corresponding laser instrument and reduce bring thus frequent repeatedly mechanically calibrated, beam path alignment and laser instrument adjustment workload, thereby increased labour intensity, loss the instrument parts, it is lower to regulate efficient, measures defectives such as quality is had a strong impact on.
The beneficial effect that the utility model is produced compared to existing technology:
(1) is applied to conventional laser Raman excitation sampling device, as long as it just can obtain the laser of needed multiple excitation wavelength by the different Laser Power Devices switch of switch, has enlarged the functions of use of common laser Raman spectrometer, and need not increases new equipment input, and commercial promise is good; (2) for the cutoff filter three-dimensional adjustable shelf of multi-wave excitation device, as long as regulate the cutoff filter three-dimensional adjustable shelf reflector laser direction of each excitation wavelength correspondence in advance, the same area that shines excited sample excites, install each cutoff filter three-dimensional adjustable shelf to the not influence of other excitation laser direction, later on just as long as by the different laser power supply switch of switch, operation is simple in adjustment, saved because of the workload of frequent mechanically calibrated, beam path alignment and laser instrument adjustment repeatedly, the adjustment manipulation strength reduces greatly; (3) simple in structure, compact, easy to manufacture, cost is low, uses fast, is convenient for carrying, the laser excitation light path bothers and the adjusting of difficulty very much when having removed each the measurement from, prolong instrument serviceable life, improved measuring accuracy, saved a large amount of measuring and adjusting time, high efficiency, suitable penetration and promotion.
The utility model is suitable for the Laser Transmission light path system of different wavelength of laser excited sample.
Below in conjunction with drawings and Examples the utility model is further described.
Description of drawings
Fig. 1 is the Laser Transmission light path system figure of several different wavelength of laser excited sample of realization of the present utility model.
Fig. 2 is the utility model cut off " high pass is low anti-" cutoff filter 1-L greater than optical maser wavelength
1Be adapted to reflected light path and cut off " high pass is low anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-A greater than optical maser wavelength
12-B is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
1With corresponding wavelength laser instrument 2-B through cutoff filter 1-F
1Reflection is adapted to transmitted light path; Cut off is less than " high pass is low anti-" cutoff filter 1-F of optical maser wavelength
1And 1-L
1Be adapted to the Laser Transmission light path principle figure of the laser excitation sample of transmitted light path with corresponding wavelength laser instrument 2-C.
Fig. 3 is the utility model cut off " low pass is high anti-" cutoff filter 1-L less than optical maser wavelength
2Be adapted to reflected light path and cut off " low pass is high anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-C less than optical maser wavelength
22-B is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is greater than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
2With corresponding wavelength laser instrument 2-B through cutoff filter 1-F
2Reflection is adapted to transmitted light path; Cut off is greater than " low pass is high anti-" cutoff filter 1-F of optical maser wavelength
2And 1-L
2Be adapted to the Laser Transmission light path principle figure of the laser excitation sample of transmitted light path with corresponding wavelength laser instrument 2-A.
Fig. 4 is the utility model cut off " low pass is high anti-" cutoff filter 1-L less than optical maser wavelength
3Be adapted to reflected light path and cut off " high pass is low anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-C greater than optical maser wavelength
32-A is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
3With corresponding wavelength laser instrument 2-A through cutoff filter 1-F
3Reflection is adapted to transmitted light path; Cut off is less than " high pass is low anti-" cutoff filter 1-F of optical maser wavelength
3With cut off " low pass is high anti-" cutoff filter 1-L greater than optical maser wavelength
3Be adapted to the Laser Transmission light path principle figure of the laser excitation sample of transmitted light path with corresponding wavelength laser instrument 2-B.
Fig. 5 is the utility model cut off " high pass is low anti-" cutoff filter 1-L greater than optical maser wavelength
4Be adapted to reflected light path and cut off " low pass is high anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-A less than optical maser wavelength
42-C is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
4With corresponding wavelength laser instrument 2-C warp " low pass is high anti-" cutoff filter 1-F
4Reflection is adapted to transmitted light path; Cut off is greater than " low pass is high anti-" cutoff filter 1-F of optical maser wavelength
4With cut off " high pass is low anti-" cutoff filter 1-L less than optical maser wavelength
4Be adapted to the Laser Transmission light path principle figure of the laser excitation sample of transmitted light path with corresponding wavelength laser instrument 2-B.
Among the figure: 1, cutoff filter, 2, laser instrument, 3, support bar, 4, bracing frame, 5, steel ball, 6, screw, 7, spring, 8, the spring fixed bar, 9, the part installing plate, 10, fixed pressure ring, 11, three-dimensional adjustable shelf, 12, optical bench, cutoff filter 1-L
1, cutoff filter 1-F
1, cutoff filter 1-L
2, cutoff filter 1-F
2, cutoff filter 1-L
3, cutoff filter 1-F
3, cutoff filter 1-L
4, cutoff filter 1-F
4, laser instrument 2-A, laser instrument 2-B, laser instrument 2-C, M
1-catoptron, M
2-concave mirror, M
3-concave mirror, L
1-condenser lens, L
2-scattering imaging len, L
3-scattering imaging len, P
1-half-wave plate, P
2-optical filter, the S-sample.
Embodiment
Shown in accompanying drawing, it comprises the excitation light path three-dimensional adjustable shelf 11 of use in multi-wave excitation device of laser Raman spectrometer, and the array cut off is set in the same optical axis of sample test excitation light path greater than optical maser wavelength or cut off cutoff filter 1 less than optical maser wavelength, cutoff filter 1 is adapted to relative position fixing " high pass is low anti-" single type filter array combination that combine with " high pass is low anti-" or that " low pass is high anti-" combines with " low pass is high anti-" and " low pass is high anti-" mixed type filter array combination that combine with " high pass is low anti-" or that " high pass is low anti-" combines with " low pass is high anti-" with corresponding wavelength laser instrument 2, and, realize the test of several different wavelength of laser excited sample and laser excitation sample thereof through the Kai Heguan of different wave length laser instrument 2.The cutoff filter 1 of filter array combination can be two groups of above and different wave length laser excitations more than four kinds.
In conjunction with the accompanying drawings 1, multi-wave excitation device of laser Raman spectrometer is made of the test excitation light path of same optical axis laser excitation sample several three-dimensional adjustable shelf 11 and several different wave length laser instruments 2 that cutoff filter 1 of different cut offs is housed; Three-dimensional adjustable shelf 11 comprises support bar 3, support bar 3 one ends insert in the optical bench 12, the other end of support bar 3 screws in bracing frame 4, bracing frame 4 is by steel ball 5 and screw 6, and the spring 7 of corresponding screw 6 installations, spring fixed bar 8 is connected and fixed with part installing plate 9, and cutoff filter 1 is installed in the part installing plate 9, is tightened on part installing plate 9 by fixed pressure ring 10; The top of two screws 6 and steel ball 5 are in part installing plate 9 same planes, by regulating the turnover of two screws 6, scalable cutoff filter 1 reflecting surface orientation thus makes reflector laser be radiated at the same area excited sample of excited sample and implements sample test.
In conjunction with the accompanying drawings 2, in the same optical axis of test excitation light path of laser excitation sample, two groups of cutoff filter 1-L are set
1, 1-F
1, cutoff filter 1-L
1And 1-F
1Be the single type filter array combination that " high pass is low anti-" combines with " high pass is low anti-", cutoff filter 1-L
1And 1-F
1Be " high pass is low anti-" cutoff filter group, they and corresponding wavelength laser instrument 2-A, laser instrument 2-B, laser instrument 2-C are adapted to the multi-wave excitation device of laser Raman spectrometer of the different wavelength of laser excited sample of the fixing filter array combination of relative position.During use, opening wavelength is the blue laser 2-A of 473nm, and laser radiation is to cutoff filter 1-L
1On, because cutoff filter 1-L
1Cut off be 514nm, so cutoff filter 1-L
1Wavelength is played reflex less than the laser of cut off, this moment cutoff filter 1-L
1Be equivalent to a catoptron, emitting light path obtains blue laser; Open the green laser 2-B that wavelength is 532nm, laser radiation is to cutoff filter 1-F
1On, because cutoff filter 1-F
1Cut off be 589.3nm, so cutoff filter 1-F
1Wavelength is played reflex less than the laser of cut off, and laser is reflected to cutoff filter 1-L
1On, again because of 532nm greater than 514nm, so laser directly transmission cross cutoff filter 1-L
1, shining the next stage light path system, emitting light path obtains green laser; Opening wavelength is the red laser 2-C of 632.8nm, cutoff filter 1-L
1And 1-F
1Laser to 632.8nm all plays the transmission effect, and emitting light path obtains red laser.
M among the figure
1Be catoptron, mirror M
1Reflect the laser light on the sample S of sample cell; P
1Be half-wave plate, P
1Can change laser polarization direction; L
1Be condenser lens, L
1With laser focusing on the sample of sample cell; M
2And M
3Be concave mirror, scattered light is strengthened in reflection; L
2And L
3Be scattering imaging lens group, L
2And L
3Scattered light is focused on monochromator (spectrometer) slit, so that spectral analysis, P
2Be optical filter, the elimination Rayleigh scattering light; Cutoff filter 1 its cut off of multi-wave excitation device of laser Raman spectrometer is taken between the wavelength of the long laser instrument 2 of two adjacent wave; The typical case of cutoff filter 1 cut off uses 514nm, 589.3nm, 656nm.
In conjunction with the accompanying drawings 3, in the same optical axis of test excitation light path of laser excitation sample, two groups of cutoff filter 1-L are set
2, 1-F
2, 1-L
2Cutoff filter and 1-F
2Be the single type filter array combination that " low pass is high anti-" combines with " low pass is high anti-", cutoff filter 1-L
2And 1-F
2Be " low pass is high anti-" cutoff filter group, they and corresponding wavelength laser instrument 2-C, laser instrument 2-B, laser instrument 2-A are adapted to the multi-wave excitation device of laser Raman spectrometer of the different wavelength of laser excited sample of the fixing filter array combination of relative position.During use, opening wavelength is the red laser 2-C of 632.8nm, and laser radiation is to cutoff filter 1-L
2On, because cutoff filter 1-L
2Cut off be 589.3nm, so cutoff filter 1-L
2Wavelength is played reflex greater than the laser of cut off, this moment cutoff filter 1-L
2Be equivalent to a catoptron, emitting light path obtains red laser; Open the green laser 2-B that wavelength is 532nm, laser radiation is to cutoff filter 1-F
2On, because cutoff filter 1-F
2Cut off be 514nm, so cutoff filter 1-F
2Wavelength is played reflex greater than the laser of cut off, and laser is reflected to cutoff filter 1-L
2On, again because of 532nm less than 589.3nm, so laser directly transmission cross cutoff filter 1-L
2, shining the next stage light path system, emitting light path obtains green laser; Opening wavelength is the blue laser 2-A of 473nm, cutoff filter 1-L
2And 1-F
2Laser to 473nm all plays the transmission effect, and emitting light path obtains blue laser.
In conjunction with the accompanying drawings 4, in the same optical axis of test excitation light path of laser excitation sample, two groups of cutoff filter 1-L are set
3, 1-F
3, cutoff filter 1-L
3And 1-F
3Be the mixed type filter array combination that " low pass is high anti-" combines with " high pass is low anti-", cutoff filter 1-L
3Be " low pass is high anti-" cutoff filter, cutoff filter 1-F
3Be " high pass is low anti-" cutoff filter, cutoff filter 1-L
3With cutoff filter 1-F
3Form the cutoff filter group, they and corresponding wavelength laser instrument 2-C, laser instrument 2-A, laser instrument 2-B are adapted to the multi-wave excitation device of laser Raman spectrometer of the different wavelength of laser excited sample of the fixing filter array combination of relative position.During use, opening wavelength is the red laser 2-C of 632.8nm, and laser radiation is to 1-L
3On, because cutoff filter 1-L
3Cut off be 589.3nm, so cutoff filter 1-L
3Wavelength is played reflex greater than the laser of cut off, this moment cutoff filter 1-L
3Be equivalent to a catoptron, emitting light path obtains red laser; Opening wavelength is the blue laser 2-A of 473nm, and laser radiation is to cutoff filter 1-F
3On, because cutoff filter 1-F
3Cut off be 514nm, so cutoff filter 1-F
3Wavelength is played reflex less than the laser of cut off, and laser is reflected to cutoff filter 1-L
3On, again because of 473nm less than 589.3nm, so 473 laser directly transmission cross cutoff filter 1-L
3, shining the next stage light path system, emitting light path obtains blue laser; Open the green laser B that wavelength is 532nm, cutoff filter 1-L
3And 1-F
3Laser to 532nm all plays the transmission effect, and emitting light path obtains green laser.
In conjunction with the accompanying drawings 5, in the same optical axis of test excitation light path of laser excitation sample, two groups of cutoff filter 1-L are set
4, 1-F
4, cutoff filter 1-L
4And 1-F
4Be the mixed type filter array combination that " high pass is low anti-" combines with " low pass is high anti-", cutoff filter 1-L
4Be " high pass is low anti-" cutoff filter, cutoff filter 1-F
4Be " low pass is high anti-" cutoff filter.Cutoff filter 1-L
4With cutoff filter 1-F
4Form the cutoff filter group, they and corresponding wavelength laser instrument 2-A, laser instrument 2-C, laser instrument 2-B are adapted to the multi-wave excitation device of laser Raman spectrometer of the different wavelength of laser excited sample of the fixing filter array combination of relative position.During use, opening wavelength is the blue laser 2-A of 473nm, and laser radiation is to cutoff filter 1-L
4On, because cutoff filter 1-L
4Cut off be 514nm, so cutoff filter 1-L
4Wavelength is played reflex less than the laser of cut off, this moment cutoff filter 1-L
4Be equivalent to a catoptron, emitting light path obtains blue laser; Opening wavelength is the red laser 2-C of 632.8nm, and laser radiation is to cutoff filter 1-F
4On, because cutoff filter 1-F
4Cut off be 589.3nm, so cutoff filter 1-F
4Wavelength is played reflex greater than the laser of cut off, and laser is reflected to cutoff filter 1-L
4On, again because of 632.8nm greater than 514nm, so 632.8nm laser directly transmission cross cutoff filter 1-L
4, shining the next stage light path system, emitting light path obtains red laser; Open the green laser B that wavelength is 532nm, cutoff filter 1-L
4And 1-F
4Laser to 532nm all plays the transmission effect, and emitting light path obtains green laser.
Claims (5)
1. multi-wave excitation device of laser Raman spectrometer, it is characterized in that it is included in is provided with the array cut off greater than optical maser wavelength or the cut off cutoff filter (1) less than optical maser wavelength in the same optical axis of sample test excitation light path, cutoff filter (1) is adapted to relative position fixing " high pass is low anti-" single type filter array combination that combine with " high pass is low anti-" or that " low pass is high anti-" combines with " low pass is high anti-" and " low pass is high anti-" mixed type filter array combination that combine with " high pass is low anti-" or that " high pass is low anti-" combines with " low pass is high anti-" with corresponding wavelength laser instrument (2), and, realize several different wavelength of laser excited sample through the Kai Heguan of different wave length laser instrument (2).
2. multi-wave excitation device of laser Raman spectrometer according to claim 1, it is characterized in that " high pass is low anti-" with the single type filter array combination that " high pass is low anti-" combines is: cut off is greater than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
1Be adapted to reflected light path and cut off " high pass is low anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-A greater than optical maser wavelength
12-B is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
1With corresponding wavelength laser instrument 2-B through cutoff filter 1-F
1Reflection is adapted to transmitted light path; Cut off is less than " high pass is low anti-" cutoff filter 1-F of optical maser wavelength
1And 1-L
12-C is adapted to transmitted light path with the corresponding wavelength laser instrument.
3. multi-wave excitation device of laser Raman spectrometer according to claim 1, it is characterized in that " low pass is high anti-" with the single type filter array combination that " low pass is high anti-" combines is: cut off is less than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
2Be adapted to reflected light path and cut off " low pass is high anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-C less than optical maser wavelength
22-B is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is greater than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
2With corresponding wavelength laser instrument 2-B through cutoff filter 1-F
2Reflection is adapted to transmitted light path; Cut off is greater than " low pass is high anti-" cutoff filter 1-F of optical maser wavelength
2And 1-L
22-A is adapted to transmitted light path with the corresponding wavelength laser instrument.
4. multi-wave excitation device of laser Raman spectrometer according to claim 1, it is characterized in that " low pass is high anti-" with the mixed type filter array combination that " high pass is low anti-" combines is: cut off is less than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
3Be adapted to reflected light path and cut off " high pass is low anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-C greater than optical maser wavelength
32-A is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " low pass is high anti-" cutoff filter 1-L of optical maser wavelength
3With corresponding wavelength laser instrument 2-A through cutoff filter 1-F
3Reflection is adapted to transmitted light path; Cut off is less than " high pass is low anti-" cutoff filter 1-F of optical maser wavelength
3With cut off " low pass is high anti-" cutoff filter 1-L greater than optical maser wavelength
32-B is adapted to transmitted light path with the corresponding wavelength laser instrument.
5. multi-wave excitation device of laser Raman spectrometer according to claim 1, it is characterized in that " high pass is low anti-" with the mixed type filter array combination that " low pass is high anti-" combines is: cut off is greater than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
4Be adapted to reflected light path and cut off " low pass is high anti-" cutoff filter 1-F with corresponding wavelength laser instrument 2-A less than optical maser wavelength
42-C is adapted to reflected light path with the corresponding wavelength laser instrument; Cut off is less than " high pass is low anti-" cutoff filter 1-L of optical maser wavelength
4With corresponding wavelength laser instrument 2-C warp " low pass is high anti-" cutoff filter 1-F
4Reflection is adapted to transmitted light path; Cut off is greater than " low pass is high anti-" cutoff filter 1-F of optical maser wavelength
4With cut off " high pass is low anti-" cutoff filter 1-L less than optical maser wavelength
42-B is adapted to transmitted light path with the corresponding wavelength laser instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202443603U CN201780271U (en) | 2010-07-01 | 2010-07-01 | Laser Raman spectrometer multi-wave excitation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202443603U CN201780271U (en) | 2010-07-01 | 2010-07-01 | Laser Raman spectrometer multi-wave excitation device |
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| CN201780271U true CN201780271U (en) | 2011-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839860A (en) * | 2010-07-01 | 2010-09-22 | 湖南科技大学 | Multi-wave excitation device of laser Raman spectrometer |
| CN105424634A (en) * | 2015-10-29 | 2016-03-23 | 中国计量学院 | Water quality COD detector based on optical fiber coupling ultraviolet light source and prediction model optimization system of water quality COD detector |
-
2010
- 2010-07-01 CN CN2010202443603U patent/CN201780271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839860A (en) * | 2010-07-01 | 2010-09-22 | 湖南科技大学 | Multi-wave excitation device of laser Raman spectrometer |
| CN105424634A (en) * | 2015-10-29 | 2016-03-23 | 中国计量学院 | Water quality COD detector based on optical fiber coupling ultraviolet light source and prediction model optimization system of water quality COD detector |
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