CN102359937A - Device for accurately adjusting operating angle of Raman optical filter - Google Patents
Device for accurately adjusting operating angle of Raman optical filter Download PDFInfo
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- CN102359937A CN102359937A CN201110283022XA CN201110283022A CN102359937A CN 102359937 A CN102359937 A CN 102359937A CN 201110283022X A CN201110283022X A CN 201110283022XA CN 201110283022 A CN201110283022 A CN 201110283022A CN 102359937 A CN102359937 A CN 102359937A
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- optical filter
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- base plate
- operating angle
- raman
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Abstract
The invention discloses a device for accurately adjusting the operating angle of a Raman optical filter. The device comprises a base plate (1), a cantilever support frame (2), an inner hexangular fastening screw (4), a cone (5), a fixed baffle (6) and a rotatable baffle (7), wherein the cantilever support frame (2) is fixed on the base plate (1), and is provided with a limited moving slider (3) which can only be moved along a fixed direction; the limited moving slider (3) is provided with a screw hole; the inner hexangular fastening screw (4) is positioned in the screw hole of the limited moving slider (3); the cone (5) is tightly fixed on the inner hexangular fastening screw (4); the fixed baffle (6) is fixed on the base plate (1); the rotatable baffle (7) is arranged on the base plate (7); and the cone (5) is arranged in the seam formed by the fixed baffle (6) and the rotatable baffle (7). By utilizing the device, the operating angle of the Raman optical filter can be accurately adjusted, so as to accurately control the operating wavelength of the Raman optical filter, and the wavelengths of various optical filters in a Raman spectrometer can be accurately controlled.
Description
Technical field
The present invention relates to the Raman spectrum technical field of measurement and test, relate in particular to a kind of device of accurate adjusting Raman optical filter operating angle, is to utilize the Raman optical filter to filter laser to carry out the test of Raman spectrum.
Background technology
As everyone knows, along with the development of modern science and technology, the various optical filters that are applied to the Raman spectrum test arise at the historic moment.These optical filters make no longer needs several monochromators to filter exciting light, thereby lets Raman spectrometer become very small and exquisite.Up to the present, use the monochromatic light grating spectrograph of trap optical filter and sideband optical filter to occupy main Raman spectrometer market.Here, trap optical filter and sideband optical filter had both played a part exciting light is reflexed on the sample, played a part to filter Rayleigh line in the scattered signal again.
In raman spectroscopy measurement, many times people hope to obtain very the Raman signal near exciting light.At this moment, just need to regulate the operating angle of respective filter, make the operation wavelength of optical filter try one's best near Rayleigh line.But during too close Rayleigh line, the ability that optical filter filters Rayleigh line just more and more a little less than, disturb near the measurement of faint Raman signal it to such an extent as to Rayleigh line is very strong.Therefore, how accurately controlling the operating angle of optical filter, is a problem of the required urgent solution of raman spectroscopy measurement technology.
In addition,, as have only several wave numbers, at this moment also need the accurately operating angle of control trap optical filter, make the trap optical filter just filter out Rayleigh line, so that carry out the measurement of lower wave number Raman spectrum if the operation window of trap optical filter is very narrow.
Main in the world at present Raman spectrometer manufacturer has only several families can simply control the angle of optical filter.However, accurately control the operating angle of Raman optical filter, remain a difficult problem that needs solution.
Summary of the invention
The technical matters that (one) will solve
In view of this; Fundamental purpose of the present invention is to provide a kind of device of accurate adjusting Raman optical filter operating angle; Operating angle with the Raman optical filter of accurately regulating Raman spectrometer makes it can stop enough Rayleigh lines to measure the enough low Raman spectrum of wave number again near Rayleigh line as far as possible.
(2) technical scheme
For achieving the above object, the invention provides a kind of device of accurate adjusting Raman optical filter operating angle, comprising: base plate 1; Be fixed in the Cantilever 2 on this base plate 1, on this Cantilever 2, have the restricted movement slide block 3 that can only move along fixed-direction, and have a screw on this restricted movement slide block 3; Be arranged in the hexagonal jackscrew 4 of the screw of this restricted movement slide block; With the closely fixing cone 5 of hexagonal jackscrew in this 4; Be fixed in the fixed dam 6 on this base plate 1; And place the rotatable baffle plate 7 on this base plate 1, this cone 5 to be placed between the crack of this fixed stop 6 and this rotatable block 7 formation.
In the such scheme, this device also comprises: be fixed in the filter supporter 8 on this rotatable baffle plate 7.
(3) beneficial effect
The device of accurate adjusting Raman optical filter operating angle provided by the invention; Can accurately regulate the operating angle of the Raman optical filter of Raman spectrometer; Make it can stop enough Rayleigh lines to measure the enough low Raman spectrum of wave number again near Rayleigh line as far as possible; And this device can be applied to micro-Raman spectroscopy, is used for surveying the enough low Raman signal of wave number.
Description of drawings
Fig. 1 is the structural representation of the device of accurate adjusting Raman optical filter operating angle provided by the invention.
Fig. 2 is the vertical view of the device key component of accurate adjusting Raman optical filter operating angle provided by the invention.
Fig. 3 is the continuous situation of change of operation wavelength of utilizing the measured Raman optical filter of device of accurate adjusting Raman optical filter operating angle provided by the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, to further explain of the present invention.
Realize the continuous variation of Raman optical filter operation wavelength, the most directly method places the Raman optical filter on the rotatable digital control platform exactly.But because the volume of digital control platform is very big, common Raman spectrometer can not have enough spaces to be used to place digital control platform; Digital control platform can promote the height of former filter supporter simultaneously; Make light path change, and digital control platform and numerical control electronic equipment thereof are all comparatively expensive, therefore; No matter be from the compatibility of Raman spectrometer or from cost performance, this method all is difficult to be used in Raman spectrometer.
For realizing accurately regulating Raman optical filter operating angle; As shown in Figure 1; A fixing Cantilever 2 on base plate 1 has the restricted movement slide block 3 that can only move along fixed-direction above it, a screw is arranged on the restricted movement slide block 3; Hexagonal jackscrew 4 in one is arranged in this screw, and interior hexagonal jackscrew 4 closely is connected with a cone 5.A fixing fixed stop 6 on base plate 1, there is a rotatable block 7 fixed stop 6 sides, are fixed with filter supporter 8 above the rotatable block 7.Cone 5 is placed between the crack of fixed stop 6 and rotatable block 7.Like this because interior hexagonal jackscrew 4 is closely fixing with cone 5, and interior hexagonal jackscrew 4 be positioned on the restricted movement slide block 3 screw; Therefore; As long as use hexagonal jackscrew 4 in the hexagonal screwdriver fine adjustments, hexagonal jackscrew 4 moves up and down in just can making, and moves up and down thereby drive cone 5.
As shown in Figure 2; When cone 5 moves down; Because the one of which side receives fixed stop 6 restrictions, make restricted movement slide block 3 along direction perpendicular to fixed stop 6 sides, promptly the solid arrow direction moves; Thereby drive rotatable block 7 and the rotation of respective filter support 8 along rotating shaft 9, rotation direction is shown in the dotted arrow direction.
This device is applied in the HR800 system of JY company production; Utilize hexagonal jackscrew 4 in the hexagonal screwdriver fine adjustments; It is moved down, and the transmittance curve of measured sideband optical filter is as shown in Figure 3, finds that its rising edge is along moving continuously from right to left; The size that moves can accurately control to 0.5 wave number, explains that the operating angle of sideband optical filter is precisely controlled.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; Be not limited to the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a device of accurately regulating Raman optical filter operating angle is characterized in that, comprising:
Base plate (1);
Be fixed in the Cantilever (2) on this base plate (1), on this Cantilever (2), have the restricted movement slide block (3) that can only move along fixed-direction, and have a screw on this restricted movement slide block (3);
Be arranged in the hexagonal jackscrew (4) of the screw of this restricted movement slide block;
With the closely fixing cone (5) of hexagonal jackscrew (4) in this;
Be fixed in the fixed dam (6) on this base plate (1); And
Place the rotatable baffle plate (7) on this base plate (1), this cone (5) is placed between the crack of this fixed stop (6) and the formation of this rotatable block (7).
2. the device of accurate adjusting Raman optical filter operating angle according to claim 1 is characterized in that this device also comprises:
Be fixed in the filter supporter (8) on this rotatable baffle plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110283022XA CN102359937A (en) | 2011-09-22 | 2011-09-22 | Device for accurately adjusting operating angle of Raman optical filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110283022XA CN102359937A (en) | 2011-09-22 | 2011-09-22 | Device for accurately adjusting operating angle of Raman optical filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102359937A true CN102359937A (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110283022XA Pending CN102359937A (en) | 2011-09-22 | 2011-09-22 | Device for accurately adjusting operating angle of Raman optical filter |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382266A (en) * | 2000-08-31 | 2002-11-27 | 三菱电机株式会社 | Reflecting mirror unit |
| US20050128476A1 (en) * | 2003-12-16 | 2005-06-16 | New Chromex, Inc. | Raman spectroscope |
| CN101915974A (en) * | 2010-07-14 | 2010-12-15 | 中国科学院半导体研究所 | Two-dimensional independent-angle optical adjusting frame |
| CN102135710A (en) * | 2010-01-27 | 2011-07-27 | 深圳市科创数字显示技术有限公司 | Optical adjusting device for micro-projector |
| CN102226850A (en) * | 2011-06-17 | 2011-10-26 | 中国科学院上海光学精密机械研究所 | Three-dimensional angular adjustment mechanism |
| CN102323653A (en) * | 2011-08-22 | 2012-01-18 | 天津港东科技发展股份有限公司 | Optical filter angle adjusting device |
-
2011
- 2011-09-22 CN CN201110283022XA patent/CN102359937A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382266A (en) * | 2000-08-31 | 2002-11-27 | 三菱电机株式会社 | Reflecting mirror unit |
| US20050128476A1 (en) * | 2003-12-16 | 2005-06-16 | New Chromex, Inc. | Raman spectroscope |
| CN102135710A (en) * | 2010-01-27 | 2011-07-27 | 深圳市科创数字显示技术有限公司 | Optical adjusting device for micro-projector |
| CN101915974A (en) * | 2010-07-14 | 2010-12-15 | 中国科学院半导体研究所 | Two-dimensional independent-angle optical adjusting frame |
| CN102226850A (en) * | 2011-06-17 | 2011-10-26 | 中国科学院上海光学精密机械研究所 | Three-dimensional angular adjustment mechanism |
| CN102323653A (en) * | 2011-08-22 | 2012-01-18 | 天津港东科技发展股份有限公司 | Optical filter angle adjusting device |
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Application publication date: 20120222 |