CN107807432A - A kind of microscopic Raman light path coupler - Google Patents
A kind of microscopic Raman light path coupler Download PDFInfo
- Publication number
- CN107807432A CN107807432A CN201711332396.XA CN201711332396A CN107807432A CN 107807432 A CN107807432 A CN 107807432A CN 201711332396 A CN201711332396 A CN 201711332396A CN 107807432 A CN107807432 A CN 107807432A
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- Prior art keywords
- rotary shaft
- light path
- housing
- splitting piece
- light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a kind of microscopic Raman light path coupler, light splitting piece and runing rest including housing, in housing, it is in 45 ° of gag lever posts being obliquely installed that the both sides of housing, which are connected with for limiting runing rest, runing rest both ends are connected with the rotary shaft being connected with housing into rotation, rotary shaft one end is connected with adjusting rod, hull outside wall is connected with the adjusting bracket for limiting adjusting rod rotational angle, and adjusting bracket both sides are connected with the locating part for adjusting adjusting rod movement；The runing rest being connected by rotating rotary shaft to drive with light splitting piece is rotated, and 45 ° of accurate pre-determined bits are carried out to light splitting piece using rotary shaft and gag lever post；Extract gag lever post, by the locating part for unclamping coupler side, the locating part and adjusting rod side for adjusting opposite side contradict, locating part promotes adjusting rod to rotate, so as to drive the rotation of rotary shaft, and then the light splitting piece rotation on runing rest is driven, realize the function of the quick high accuracy angular adjustment of light splitting piece.
Description
Technical field
The present invention relates to microscopic Raman instrument light channel structure, more specifically, it relates to a kind of microscopic Raman light path coupler.
Background technology
With the development of detection technique, application of the micro-Raman spectroscopy in microcosmic detection field is more and more, micro-
Raman light path coupler is accurately to couple Raman spectrometer light path and microscopes optical path, as market is to Raman spectrometer performance
It is required that lifting, the requirement for microscopic Raman light path coupler is also with lifting.
At present, microscopic Raman light path coupler both domestic and external is all a kind of nonadjustable fixing device.Component mainly includes
Light splitting piece and swivel mount.The laser for being emitted Raman spectrometer by light splitting piece is reflected, and sample face center, mark are reached through object lens
Originally the Raman light inspired reflexes to up to Raman spectrometer through object lens and light splitting piece and carries out spectrum analysis.Need to ensure during this
Laser is radiated at the center position of sample, and the center position is also the center in the visual visual field and the CCD visuals field simultaneously.
Incident Raman spot diameter is received yet with Raman spectrometer to measure with micron, to 45 ° of installations of light splitting piece
Required precision is very high, can be to Raman spectrum if the center of Raman light path does not couple with visual or the CCD visuals field center
Energy, Raman spectrum resolution ratio produce extreme influence, are not having the 45° angle degree regulation of special microscopic Raman light splitting piece at present
Device, other optical angle adjusting brackets, which are substantially adjusted, causes light vertical incidence optical mirror slip, due to the difference of usage scenario,
These adjusting methods can not be used in micro-Raman spectroscopy directly or after repacking.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of microscopic Raman light path coupler, tool
There is the adjustable function of 45° angle degree quick high accuracy of light splitting piece.
To achieve the above object, the invention provides following technical scheme：
A kind of microscopic Raman light path coupler, including housing, the light splitting piece in the housing and described for placing
The runing rest of light splitting piece, the both sides of the housing be connected be obliquely installed for limiting the runing rest in 45 ° it is spacing
Bar, the runing rest both sides are fixedly connected with the rotary shaft being connected with the housing into rotation, and one end of the rotary shaft is removable
The adjusting rod being connected with for driving it to rotate is unloaded, the housing sidewall is connected with for limiting the adjusting rod rotational angle
Adjusting bracket, the adjusting bracket both sides are connected with the locating part for adjusting the adjusting rod movement.
It is arranged such, light splitting piece is placed on runing rest, is fixedly connected by rotary shaft one end with runing rest both ends,
The other end is connected with housing into rotation, so as to realize that the rotation of runing rest drives the rotation of light splitting piece；Pass through rotary shaft and connection
Gag lever post in housing both sides carries out 45 ° of accurate pre-determined bits to light splitting piece, makes the angle locking of light splitting piece at 45 °；Adjusting rod
One end is detachably connected with rotary shaft, and the other end is extend among adjusting bracket, gag lever post is extracted, by unclamping coupler side
Locating part, the locating part and adjusting rod side for adjusting opposite side contradict, and locating part promotes adjusting rod to rotate, so as to drive rotary shaft
Rotation, and then drive the light splitting piece rotation on runing rest, realize the function of the quick high accuracy angular adjustment of light splitting piece.
Further set：The locating part is angular adjustment screw, and the angular adjustment screw is arranged in the adjusting bracket
And contradicted with the side of the adjusting rod.
It is arranged such, by unclamping unidirectional angular adjustment screw on the adjusting bracket of housing both sides, rotates other direction
Angular adjustment screw and adjusting rod contradict, the pitch moved by adjusting angle set screw, control rotary shaft to angle tune
Section screw pushes up the distance of position and the pitch of angular adjustment screw, can be achieved below 0.01 ° of light splitting piece angle control precision,
The drift condition of hot spot is detected in the visual field, if becoming closer to central region, keeps current regulation direction to continue to adjust,
And if hot spot is remote towards center, then the angular adjustment screw of other direction is changed to push up adjusting rod, and then realizes control
The function of the adjusting rod anglec of rotation.
Further set：The film trap of putting for placing the light splitting piece, the light splitting piece are offered on the runing rest
Coated surface overlapped with the bottom land for putting film trap, the bottom land for putting film trap overlaps with the axis of the rotary shaft.
Be arranged such, by light splitting piece plated film is placed on down opened up on runing rest put film trap, put film trap
Bottom land overlaps with rotary shaft axis so that the coated surface of light splitting piece is when runing rest rotates all the time in rotary shaft axis
On, so as to solve when light splitting piece thickness change and installation site are offset on influence caused by angular adjustment, realize different-thickness
Light splitting piece there is same angular adjustment effect.
Further set：The circle for the dispensing fixation light splitting piece is being offered positioned at the vertex for putting film trap
Hole.
It is arranged such, the drift angle for putting film trap opens up the circular hole that light splitting piece is fixed in dispensing, is easy to light splitting piece to be fixed on and puts film trap
It is upper and light splitting piece to pick and place.
Further set：The gag lever post is alignment pin, and the alignment pin is located at the rotary shaft obliquely downward, described
Alignment pin and the line of the rotary shaft are set with horizontal direction in 45 °, both ends and the positioning of the runing rest bottom surface
Pin contradicts.
It is arranged such, alignment pin is arranged on rotary shaft obliquely downward, makes alignment pin and the line and horizontal direction of rotary shaft
In 45 ° of settings, runing rest bottom surface is set to be contacted with alignment pin outer peripheral face by rotating rotary shaft so that runing rest and horizontal plane
Set in 45° angle degree, and then realize 45 ° of pre-determined bits of light splitting piece angle.
Further set：The rotary shaft is removably connected with the case inside wall for limiting the rotation
The limited block of axle axial movement.
It is arranged such, passes through the rotary shaft being removably connected to limited block between housing and runing rest one end
On, when rotary shaft rotates, limited block, which plays, limits rotary shaft axial movement.
Further set：Housing upper surface, lower surface and the rear end face are removably connected with micro Raman spectra successively
Instrument imaging optical path structure, microscope base and Raman probe, housing upper surface, lower surface and the rear end face offer imaging successively
Road light hole, synthesis light light path light hole and Raman light path light hole.
It is arranged such, the imaging optical path that sample is formed by micro-Raman spectroscopy imaging optical path structure passes through imaging optical path
Light hole incides the coated surface center of light splitting piece from light splitting piece upper end, Raman light path by Raman light path light hole from point
Mating plate rear end glancing incidence to being divided on flat coated surface, before both light of light paths synthesis penetrated by synthesizing light light path light hole
Go out, then by angular adjustment, realize the accurate coupling of three parts light path light axis, with this ensure the detection of Raman light path performance and
Image quality.
Further set：Upper surface, lower surface and the rear end face of the housing offer several and are used to distinguish successively
The fixed micro-Raman spectroscopy imaging optical path structure, the imaging positioning hole of the microscope base and the Raman probe, synthesis
Light light path positioning hole and Raman light path positioning hole.
It is arranged such, by changing the Raman light path positioning hole of selection diverse location, other compatible Raman spectrometers are real
Existing a variety of Raman spectrums and microscopical matching；By changing the synthesis light light path positioning hole of selection diverse location, can be achieved to draw
Graceful spectrometer and light path coupler and a variety of microscopical matchings.
In summary, light splitting piece is fixed on runing rest by glue, passes through rotary shaft one end and runing rest both ends
It is fixedly connected, the other end is connected with housing into rotation, so as to realize that the rotation of runing rest drives the rotation of light splitting piece；Pass through rotation
Axle carries out 45 ° of accurate pre-determined bits with the gag lever post for being connected to housing both sides to light splitting piece, the angle locking of light splitting piece is existed
45°；Realize that the high accuracy for light splitting piece angle is adjusted by anglec of rotation set screw, realize less than 0.01 ° of angle
Control, while the control of angle of regulation range is realized, improve adjustment efficiency.Meanwhile the coated surface of light splitting piece revolves with runing rest
Plane overlaps where turning axis, and the light splitting piece of different-thickness, which can be achieved, has same angular adjustment effect, and then realizes and divide
The function of the quick high accuracy angular adjustment of mating plate.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is the rearview of the present invention；
Fig. 4 is the schematic diagram of light splitting piece light path.
In figure：1st, light splitting piece；2nd, runing rest；3rd, rotary shaft；4th, alignment pin；5th, adjusting rod；6th, angular adjustment screw；7、
Adjusting bracket；8th, limited block；9th, gag lever post；10th, housing；11st, it is imaged positioning hole；12nd, imaging optical path light hole；13rd, light light is synthesized
Road positioning hole；14th, light light path light hole is synthesized；15th, Raman light path light hole；16th, Raman light path positioning hole；17th, circular hole；18、
Locating part；19th, film trap is put；20th, micro-Raman spectroscopy imaging optical path structure；21st, microscope base；22nd, Raman probe.
Embodiment
Microscopic Raman light path coupler is described further referring to figs. 1 to Fig. 4.
A kind of microscopic Raman light path coupler, as shown in figure 1, light splitting piece 1, use including housing 10, in housing 10
In the runing rest 2 for placing light splitting piece 1 and it is fixedly connected on the both sides of runing rest 2 and is rotationally connected with the rotary shaft of housing 10
3。
Rotary shaft 3 is removably connected with the limited block for limiting the axial movement of rotary shaft 3 on the madial wall of housing 10
8。
As shown in figure 1, it is in 45 ° of alignment pins 4 being obliquely installed that the both sides of housing 10, which are connected with for limiting runing rest 2,
Alignment pin 4 is located at the obliquely downward of rotary shaft 3 in 45 ° of settings, and both ends and the alignment pin 4 of the bottom surface of runing rest 2 contradict.
As depicted in figs. 1 and 2, one end that rotary shaft 3 is located at outside housing 10 is removably connected with what is rotated for driving it
Adjusting rod 5；The side wall of housing 10 is connected with the adjusting bracket 7 for limiting the rotational angle of adjusting rod 5；The both sides of adjusting bracket 7 are connected with use
In regulation adjusting rod 5 move angular adjustment screw 6, the screw thread of angular adjustment screw 6 be arranged in adjusting bracket 7 and with adjusting rod 5
Side contradicts.
As shown in Figure 1 and Figure 4, offered on runing rest 2 and put film trap 19, the plating of light splitting piece 1 for place light splitting piece 1
Film surface overlaps with putting the bottom land of film trap 19, and the bottom land for putting film trap 19 overlaps with the axis of rotary shaft 3；Positioned at putting film trap 19
Vertex offers the circular hole 17 that light splitting piece 1 is fixed for dispensing.
As shown in Figures 2 and 3, the upper surface of housing 10, lower surface and rear end face are removably connected with microscopic Raman light successively
Spectrometer imaging optical path structure 20, microscope base 21 and Raman probe 22, the upper surface of housing 10, lower surface and rear end face offer successively
Imaging optical path light hole 12, synthesis light light path light hole 14 and Raman light path light hole 15.Upper surface, the lower surface of housing 10
Offered successively with rear end face several be used for fix respectively micro-Raman spectroscopy imaging optical path structure 20, microscope base 21 and
Imaging positioning hole 11, synthesis light light path positioning hole 13 and the Raman light path positioning hole 16 of Raman probe 22.
Operation principle：First, light splitting piece 1 is fixed on runing rest 2, passes through 2 liang of the one end of rotary shaft 3 and runing rest
End is fixedly connected, and the other end is rotatablely connected with housing 10, so as to realize that the rotation of runing rest 2 drives the rotation of light splitting piece 1；It is logical
Rotary shaft 3 and the alignment pin 4 for being connected to the both sides of housing 10 are crossed to the 45 ° of accurate pre-determined bits of progress of light splitting piece 1, makes light splitting piece 1
Angle locking is at 45 °；Meanwhile the coated surface of light splitting piece 1 overlaps with plane where the rotation central axis line of runing rest 2, can be achieved not
The light splitting piece 1 of stack pile has same angular adjustment effect.
Then, alignment pin 4 is extracted, the unidirectional angular adjustment screw 6 in coupler both sides is unclamped, adjusts other direction
Angular adjustment screw 6 contradicts with adjusting rod 5, adjusting rod 5 is rotated, and angular adjustment screw 6 completes one for each revolution
The displacement of lattice pitch, adjusting rod 5 complete same displacement in same direction；Corresponding to this displacement can be calculated by bar length
Angular displacement, so as to calculate the angle that rotary shaft 3 drives light splitting piece 1 to rotate.The drift condition of hot spot is detected in the visual field, if
Central region is become closer to, then keeps current regulation direction to continue to adjust, and if hot spot is remote towards center, then
The angular adjustment screw 6 and adjusting rod 5 for changing other direction contradict, and need to monitor Raman spectrum data simultaneously during this, when
Probe response degree highest and hot spot is in central region, it is believed that optimum position is arrived in regulation, can be fast by such adjusting method
Hot spot is transferred to central region by speed, finally locks both sides angular adjustment screw 6, and carries out locking reinforcing using structure glue, this
Sample just completes the coupling of microscopic Raman light path, realizes the function of the quick high accuracy angular adjustment of light splitting piece 1.
In addition, selecting the Raman light path positioning hole 16 of diverse location by changing, other compatible Raman spectrometers, realize
A variety of Raman spectrums and microscopical matching；Light light path positioning hole 13 is synthesized by changing selection diverse location, Raman can be achieved
Spectrometer and light path coupler and a variety of microscopical matchings.
The angular adjustment precision for the angular adjustment screw 6 that the present invention uses is 0.01 °, by reducing angular adjustment screw 6
The pitch of screw and the bar length of increase adjusting rod 5 can significantly improve degree of regulation.Design factors adjustable range in the present invention is
± 5 °, angle of regulation range can be controlled by changing distance that adjusting rod 5 pushed up by angular adjustment screw 6；The present invention is different from
Other angle regulators, the thang-kng in three directions can be achieved and realize the coupling of three road light.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of microscopic Raman light path coupler, including housing (10), the light splitting piece (1) in the housing (10) and it is used for
Place the runing rest (2) of the light splitting piece (1), it is characterised in that：The both sides of the housing (10) are connected with for limiting institute
It is in 45 ° of gag lever posts (9) being obliquely installed to state runing rest (2), and the runing rest (2) is fixedly connected with and the housing (10)
The rotary shaft (3) of rotation connection, one end of rotary shaft (3) rotation are removably connected with the adjusting rod for driving it to rotate
(5), housing (10) side wall is connected with the adjusting bracket (7) for limiting the adjusting rod (5) rotational angle, the adjusting bracket
(7) both sides are connected with the locating part (18) mobile for adjusting the adjusting rod (5).
A kind of 2. microscopic Raman light path coupler according to claim 1, it is characterised in that：The locating part (18) is angle
Set screw (6) is spent, the angular adjustment screw (6) is arranged in the adjusting bracket (7) and supported with the side of the adjusting rod (5)
Touch.
A kind of 3. microscopic Raman light path coupler according to claim 1, it is characterised in that：On the runing rest (2)
Offer and put film trap (19) for place the light splitting piece (1), the coated surface of the light splitting piece (1) puts film trap (19) with described
Bottom land overlap, the bottom land for putting film trap (19) overlaps with the axis of the rotary shaft (3).
A kind of 4. microscopic Raman light path coupler according to claim 3, it is characterised in that：Film trap is being put positioned at described
(19) vertex offers the circular hole (17) that the light splitting piece (1) is fixed for dispensing.
A kind of 5. microscopic Raman light path coupler according to claim 1, it is characterised in that：The gag lever post (9) is fixed
Position pin (4), the alignment pin (4) are located at the rotary shaft (3) obliquely downward, the alignment pin (4) and the company of the rotary shaft (3)
Line contradicts with horizontal direction in 45 ° of settings, both ends and the alignment pin (4) of runing rest (2) bottom surface.
A kind of 6. microscopic Raman light path coupler according to claim 1, it is characterised in that：The rotary shaft (3) is close
The limited block (8) for limiting the rotary shaft (3) axial movement is removably connected with housing (10) madial wall.
A kind of 7. microscopic Raman light path coupler according to claim 1, it is characterised in that：Housing (10) upper end
Face, lower surface and rear end face be removably connected with successively micro-Raman spectroscopy imaging optical path structure (20), microscope base (21) and
Raman probe (22), housing (10) upper surface, lower surface and the rear end face offer imaging optical path light hole (12), closed successively
Into light light path light hole (14) and Raman light path light hole (15).
A kind of 8. microscopic Raman light path coupler according to claim 7, it is characterised in that：The upper end of the housing (10)
Face, lower surface and rear end face offer several and are used to fix the micro-Raman spectroscopy imaging optical path structure respectively successively
(20), the imaging positioning hole (11) of the microscope base (21) and the Raman probe (22), synthesis light light path positioning hole (13), with
And Raman light path positioning hole (16).
A kind of 9. microscopic Raman light path coupler according to claim 1 to 8, it is characterised in that：Comprise the steps of：
Step 1, by rotating at rotary shaft 3 to alignment pin 4,45 ° of accurate pre-determined bits are carried out to light splitting piece 1；
Step 2, alignment pin 4 is extracted, unclamp angular adjustment screw 6, the angular adjustment screw 6 in one direction of regulation supports with adjusting rod 5
Touch, adjusting rod 5 is rotated；
Step 3, hot spot is detected in the visual field, direction is adjusted according to the distance of hot spot and central region；
Step 4, need to monitor Raman spectrum data simultaneously during this, when probe response degree highest and hot spot is in the visual field
The heart, optimum position is arrived for regulation；
Step 6, both sides angular adjustment screw 6 is finally locked, and locking reinforcing application method step is carried out using structure glue.
A kind of 10. microscopic Raman light path coupler according to claim 9, it is characterised in that：Step 3 according to tabula rasa with
The distance regulation direction step of central region, step 1, if hot spot becomes closer to central region, keeps current regulation
Continue to adjust in direction；Step 2, if hot spot is remote towards center, the angular adjustment screw 6 of other direction is changed with adjusting
Pole 5 contradicts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332396.XA CN107807432A (en) | 2017-12-13 | 2017-12-13 | A kind of microscopic Raman light path coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332396.XA CN107807432A (en) | 2017-12-13 | 2017-12-13 | A kind of microscopic Raman light path coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107807432A true CN107807432A (en) | 2018-03-16 |
Family
ID=61579382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711332396.XA Pending CN107807432A (en) | 2017-12-13 | 2017-12-13 | A kind of microscopic Raman light path coupler |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3698717B1 (en) * | 2005-05-17 | 2005-09-21 | ミナト光学工業株式会社 | Ultra fine adjustment device for optical equipment |
| RU63555U1 (en) * | 2005-08-26 | 2007-05-27 | Открытое акционерное общество "Красногорский завод им. С.А. Зверева" | MIRROR DEVICE |
| CN102436048A (en) * | 2011-10-19 | 2012-05-02 | 深圳市光峰光电技术有限公司 | Mirror bracket, light source generator comprising same and display system |
| CN105203086A (en) * | 2015-09-02 | 2015-12-30 | 宁波舜宇测绘科技有限公司 | Laser demarcation device with adjustable base |
| CN107290056A (en) * | 2017-06-30 | 2017-10-24 | 中国科学院半导体研究所 | Raman spectrum test system |
| CN207601402U (en) * | 2017-12-13 | 2018-07-10 | 奥谱天成（厦门）光电有限公司 | A kind of microscopic Raman light path coupler |
-
2017
- 2017-12-13 CN CN201711332396.XA patent/CN107807432A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3698717B1 (en) * | 2005-05-17 | 2005-09-21 | ミナト光学工業株式会社 | Ultra fine adjustment device for optical equipment |
| RU63555U1 (en) * | 2005-08-26 | 2007-05-27 | Открытое акционерное общество "Красногорский завод им. С.А. Зверева" | MIRROR DEVICE |
| CN102436048A (en) * | 2011-10-19 | 2012-05-02 | 深圳市光峰光电技术有限公司 | Mirror bracket, light source generator comprising same and display system |
| CN105203086A (en) * | 2015-09-02 | 2015-12-30 | 宁波舜宇测绘科技有限公司 | Laser demarcation device with adjustable base |
| CN107290056A (en) * | 2017-06-30 | 2017-10-24 | 中国科学院半导体研究所 | Raman spectrum test system |
| CN207601402U (en) * | 2017-12-13 | 2018-07-10 | 奥谱天成（厦门）光电有限公司 | A kind of microscopic Raman light path coupler |
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