CN208459279U - A kind of Raman spectrometer laser beam angle arrangement for deflecting - Google Patents
A kind of Raman spectrometer laser beam angle arrangement for deflecting Download PDFInfo
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- CN208459279U CN208459279U CN201820586174.4U CN201820586174U CN208459279U CN 208459279 U CN208459279 U CN 208459279U CN 201820586174 U CN201820586174 U CN 201820586174U CN 208459279 U CN208459279 U CN 208459279U
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- deflecting mirror
- deflecting
- raman spectrometer
- mirror
- diameter gear
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Abstract
A kind of Raman spectrometer laser beam angle arrangement for deflecting, the utility model relate generally to Raman spectrometer field.The utility model mainly solves how to prevent the technical issues of causing sample damage in Raman spectrometer detection process.The utility model mainly includes beam-deflecting mirror, deflection mechanism, wherein deflection mechanism can adjust beam-deflecting mirror deflection, so that the light beam for being irradiated to beam-deflecting mirror deflects, so that light beam is fast moved in sample surfaces, certain detection range is formed, leads to sample damage to avoid thermal accumlation is generated in the irradiation for a long time of sample same position.The utility model is mainly used in Raman spectrometer, the regulating mechanism as Raman spectrometer detection light beam.
Description
Technical field
The utility model relates to a kind of Raman spectrometer laser beam angle arrangements for deflecting.
Background technique
In the past more than ten years, Raman spectroscopy is as non-in industrial application process control and environmental monitoring field
Contact and situ method, have had been to be concerned by more and more people.But since Raman spectrum needs higher excitation energy,
It focuses on material locally and may cause the lower material hot-spot of softening temperature, cause to damage measured object when detection.Thus such as
What can be realized in the case where not damaging measured object, and allowing measured object to issue enough excited radiation lights becomes one of this field
Technical problem.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of Raman spectrometer laser light beam angles
Arrangement for deflecting is spent, measured object can be allowed to issue in the case where not damaging measured object by the realization that fast moves of detection light beam
Enough excited radiation lights, in order to realize the technical purpose of the utility model, the utility model is provided the following technical solutions:
A kind of Raman spectrometer laser beam angle arrangement for deflecting described in the utility model, the device include light beam deflection
Mirror, deflection mechanism, the deflection mechanism can adjust beam-deflecting mirror deflection, so that the light beam for being irradiated to beam-deflecting mirror occurs
Deflection, so that light beam is fast moved in sample surfaces, forms certain detection range, to avoid in sample same position long-time
Irradiation, which generates thermal accumlation, leads to sample damage.
Preferably, the deflection mechanism includes large diameter gear, small-diameter gear, driving gear, and the beam-deflecting mirror includes
First beam-deflecting mirror, the second beam-deflecting mirror, the large diameter gear and small-diameter gear possess different gear ratios, and major diameter
Gear and the first beam-deflecting mirror are connected, and small-diameter gear and the second beam-deflecting mirror are connected；The large diameter gear, small-diameter gear
Rotation is controlled by driving gear.
Preferably, above-mentioned beam-deflecting mirror is rotation wedge mirror.
Preferably, the deflection mechanism includes beam-deflecting mirror shelf, alignment bearing, eccentric rotor, the light beam deflection
Mirror holder is fixed on alignment bearing, can be swung around the centre of sphere, and the eccentric rotor internal diameter long axis is slightly larger than bearing bore diameter, rotation
When with bearing inner wall random collision, drive beam-deflecting mirror deflection and rotation.
Preferably, above-mentioned beam-deflecting mirror is reflecting mirror, MEMS micro reflector array.
The utility model is by driving beam-deflecting mirror to realize different deflection, so that in specific detection process
Light beam fast moves on measured object surface, and sample can be effectively avoided and irradiate for a long time in same position, prevent excessive heat
Amount accumulation, prevents sample damage.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model embodiment one.
Fig. 2 is the structure chart of the utility model embodiment two.
Numbering in the drawing is explained: 1- large diameter gear, the first beam-deflecting mirror of 2-, the second beam-deflecting mirror of 3-, 4- sliding tooth
Wheel, 5- small-diameter gear, 6- reflecting mirror, 7- reflecting mirror, 8- reflecting mirror shelf, 9- eccentric rotor, 10- alignment bearing.
Specific embodiment
Embodiment one.
The utility model will be further described below with reference to the accompanying drawings.
The utility model realizes that high-energy focal beam spot is fast moved in detection focal plane by beam angle arrangement for deflecting,
The accumulation of sample part energy measurement of high energy laser can be reduced, sample damage is reduced.As shown in Fig. 1, specific beam angle deflection
Device, large diameter gear 1 are connected with the first beam-deflecting mirror 2, small-diameter gear 5 and the second beam-deflecting mirror 3, and large diameter gear and
Small-diameter gear possesses different gear ratios, and the rotation of large diameter gear, small-diameter gear is controlled by driving gear 4.In the implementation of attached drawing 1
Beam-deflecting mirror selects the optical element of transmission mode in example, has specifically selected rotation wedge mirror as beam-deflecting mirror.When
When raman laser light beam gets to rotation wedge mirror, sliding tooth wheel drive large diameter gear and small-diameter gear, so that being irradiated to rotation wedge mirror
Light beam deflect, and then realize light beam fast moved in illuminated sample surfaces, form certain range of exposures, to avoid
Generating thermal accumlation in the irradiation for a long time of illuminated sample same position leads to sample damage.
Embodiment two.
As shown in Fig. 2, a kind of Raman spectrometer laser beam angle arrangement for deflecting, the deflection mechanism of the device include light
Beam deflecting mirror shelf, alignment bearing, eccentric rotor, wherein beam-deflecting mirror shelf is fixed on alignment bearing, can be around the centre of sphere
It swings.Eccentric rotor internal diameter long axis is slightly larger than bearing bore diameter, with bearing inner wall random collision when rotation, drives beam-deflecting mirror inclined
Turn and rotates.Beam-deflecting mirror is using the optical element that can be realized reflecting effect, reality as one preferred in the present embodiment
Example is applied, reflecting mirror, MEMS micro reflector array can be selected as beam-deflecting mirror.When raman laser light beam gets to reflecting mirror
When, eccentric rotor drives mirror deflection, so that the light beam for being irradiated to reflecting mirror deflects, and then realizes light beam illuminated
Sample surfaces fast move, and form certain range of exposures.
That has been described as preferred embodiments of the present invention, do not limit the utility model with this, for this field
Those of ordinary skill for, it is all do not depart from the utility model design and substantive characteristics in the case where, to the utility model institute
The equivalent replacement made, modification should all be regarded as the range of the utility model covering.
Claims (4)
1. a kind of Raman spectrometer laser beam angle arrangement for deflecting, it is characterised in that: including beam-deflecting mirror, deflection mechanism,
The deflection mechanism can adjust beam-deflecting mirror deflection, so that the light beam for being irradiated to beam-deflecting mirror deflects, so that light
Beam is fast moved in sample surfaces, forms certain detection range, to avoid in sample same position, irradiation generates heat for a long time
Amount accumulation leads to sample damage；The deflection mechanism includes large diameter gear, small-diameter gear, driving gear, the beam-deflecting mirror
Including the first beam-deflecting mirror, the second beam-deflecting mirror, the large diameter gear and small-diameter gear possess different gear ratios, and
Large diameter gear and the first beam-deflecting mirror are connected, and small-diameter gear and the second beam-deflecting mirror are connected；The large diameter gear, path tooth
The rotation of wheel is controlled by driving gear.
2. a kind of Raman spectrometer laser beam angle arrangement for deflecting according to claim 1, it is characterised in that: the light
Beam deflecting mirror is rotation wedge mirror.
3. a kind of Raman spectrometer laser beam angle arrangement for deflecting according to claim 1, it is characterised in that: described inclined
Rotation mechanism includes beam-deflecting mirror shelf, alignment bearing, eccentric rotor, and the beam-deflecting mirror shelf is fixed on alignment bearing
On, it can be swung around the centre of sphere, the eccentric rotor internal diameter long axis is slightly larger than bearing bore diameter, and when rotation touches at random with bearing inner wall
It hits, drives beam-deflecting mirror deflection and rotation.
4. a kind of Raman spectrometer laser beam angle arrangement for deflecting according to claim 1, it is characterised in that: the light
Beam deflecting mirror is reflecting mirror, MEMS micro reflector array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820586174.4U CN208459279U (en) | 2018-04-24 | 2018-04-24 | A kind of Raman spectrometer laser beam angle arrangement for deflecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820586174.4U CN208459279U (en) | 2018-04-24 | 2018-04-24 | A kind of Raman spectrometer laser beam angle arrangement for deflecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208459279U true CN208459279U (en) | 2019-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820586174.4U Active CN208459279U (en) | 2018-04-24 | 2018-04-24 | A kind of Raman spectrometer laser beam angle arrangement for deflecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208459279U (en) |
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2018
- 2018-04-24 CN CN201820586174.4U patent/CN208459279U/en active Active
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