CN210981185U - Adjustable parallel lens group device - Google Patents
Adjustable parallel lens group device Download PDFInfo
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- CN210981185U CN210981185U CN201922435601.6U CN201922435601U CN210981185U CN 210981185 U CN210981185 U CN 210981185U CN 201922435601 U CN201922435601 U CN 201922435601U CN 210981185 U CN210981185 U CN 210981185U
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Abstract
The utility model relates to an adjustable parallel lens group device, which comprises a base, and a parallel lens group and a detection lens group which are arranged on the base; the parallel lens group comprises a motor, a connecting shaft, a first plane mirror, a second plane mirror and an adjusting structure, wherein two ends of the connecting shaft are arranged in the middle of the base through the connecting seat; the detection mirror group comprises an emission receiving group and a reflection group which are fixedly arranged on the base, and the emission receiving group and the reflection group are respectively arranged on two sides of the connecting shaft. The utility model has the advantages that: the result of light transmission and reflection on the detection plate is used for verifying whether the two plane mirrors are parallel or not, and then the angle of one plane mirror is adjusted to enable the two plane mirrors to be parallel; in addition, the adjustment process is simple and convenient, and the operation is easy.
Description
Technical Field
The utility model belongs to the check out test set field especially relates to an adjustable parallel mirror group device.
Background
The Fourier transform infrared spectrum is an analysis and identification method combining the mathematical processing of Fourier transform with infrared spectrum by computer technique, and is mainly composed of optical detection portion and computer portion. When a sample is placed in the light path of the interferometer, the energy of certain frequency is absorbed, so that the intensity curve of the obtained interferogram correspondingly changes, each frequency on the interferogram can be converted into corresponding light intensity through a mathematical Fourier transform technology to obtain the whole infrared spectrogram, and according to different characteristics of the spectrogram, a functional group of an unknown substance can be detected, a chemical structure can be determined, a chemical reaction process can be observed, isomers can be distinguished, the purity of an analysis substance can be analyzed, and the like. In the existing FTIR instrument, two completely parallel plane mirrors are the basic requirement of the accuracy of the detection data of the device, but because of the limitation of the preparation precision of a workpiece, the completely parallel plane mirrors cannot be prepared, and the two plane mirrors need to be adjusted to be parallel.
Disclosure of Invention
In order to solve the above technical problem, the utility model provides an adjustable parallel mirror group device.
The utility model adopts the technical proposal that: an adjustable parallel lens group device comprises a base, and a parallel lens group and a detection lens group which are arranged on the base;
the parallel lens group comprises a motor, a connecting shaft, a first plane mirror, a second plane mirror and an adjusting structure, wherein two ends of the connecting shaft are arranged on the base through the connecting seat;
the detection lens group comprises an emission receiving group and a reflection group which are fixedly arranged on the base, and the emission receiving group and the reflection group are respectively arranged on two sides of the connecting shaft;
the transmitting and receiving set comprises a light source, a beam splitter and a detection screen, the beam splitter is arranged between one side edges of the first plane mirror and the second plane mirror, and the light source and the detection screen are respectively arranged at the two sides of the beam splitter and are obliquely behind the connecting shaft in the direction away from the connecting shaft;
the reflection set includes relative first speculum and the second mirror that sets up of slope, and first speculum and second mirror are the same with the connecting axle contained angle, and light source emission light perpendicular to first speculum or second mirror.
Preferably, the adjusting structure comprises an adjusting base plate and an adjusting bolt penetrating through the adjusting base plate, the connecting shaft penetrates through the annular adjusting base plate, the adjusting base plate is fixedly connected with the connecting shaft, the adjusting bolt is in threaded connection with the adjusting base plate, and the front end of the adjusting bolt abuts against the back face of the second plane mirror.
Preferably, the adjusting bolt includes 3-6 bolts uniformly arranged on the adjusting base plate.
Preferably, a shaft sleeve is arranged between the first plane mirror and the second plane mirror, the shaft sleeve is sleeved in the middle of the connecting shaft through a positioning pin or is integrally formed with the connecting shaft, the outer diameters of two ends of the shaft sleeve are larger than the through holes in the centers of the first plane mirror and the second plane mirror, and a gasket is sleeved between the shaft sleeve and the second plane mirror.
Preferably, a fixed substrate is fixedly arranged on the back of the first plane mirror, and the fixed substrate is fixedly connected with the connecting shaft.
Preferably, the beam splitter is at the same distance from the first and second flat mirrors.
Preferably, the first mirror and the second mirror are arranged symmetrically to the beam splitter.
Preferably, the light source and the detection screen are arranged symmetrically to the beam splitter.
The utility model has the advantages and positive effects that: the result of light transmission and reflection on the detection plate is used for verifying whether the two plane mirrors are parallel or not, and then the angle of one plane mirror is adjusted to enable the two plane mirrors to be parallel; in addition, the adjustment process is simple and convenient, and the operation is easy.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic top view of an embodiment of the present invention;
fig. 3 is a schematic view of a structure of a connecting shaft according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a verification method according to an embodiment of the present invention.
In the figure:
1. connecting shaft 11, motor 12 and fixed substrate
13. Shaft sleeve 21, first plane mirror 22 and second plane mirror
31. Adjustment substrate 32, adjustment bolt 41, and light source
42. Beam splitter 43, detection screen 44, first mirror
45. Second reflecting mirror
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the present invention relates to an adjustable parallel lens assembly for adjusting the parallelism of two plane mirrors of an FTIR instrument; comprises a base, and a parallel lens group and a detection lens group which are arranged on the base.
The parallel lens group comprises a motor 11, a connecting shaft 1, a first plane mirror 21, a second plane mirror 22 and an adjusting structure, two ends of the connecting shaft 1 are arranged in the middle of the base through connecting seats, the connecting shaft 1 penetrates through the first plane mirror 21 and the second plane mirror 22 which are oppositely arranged, the motor 11 is connected with one end of the connecting shaft 1, and the first plane mirror 21 and the second plane mirror 22 are driven to rotate through the connecting shaft 1, so that plane mirrors can be adjusted conveniently; the outer side connecting seats of the two plane mirrors are respectively provided with a shaft sleeve 13, so that the connecting shaft 1 can rotate around the axis stably; the fixed base plate 12 is fixedly arranged on the back of the first plane mirror 21, the fixed base plate 12 is in threaded connection with the connecting shaft 1, so that the fixed base plate 12 is fixedly connected relative to the connecting shaft 1, and the fixed base plate 12 extrudes and fixes the first plane mirror 21 on the connecting shaft 1; the adjusting structure is disposed on the back of the second plane mirror 22 for adjusting the angle of the second plane mirror 22 to be parallel to the first plane mirror 21.
The adjusting structure comprises an adjusting base plate 31 and adjusting bolts 32 penetrating through the adjusting base plate 31, the connecting shaft 1 penetrates through the annular adjusting base plate 31, the adjusting base plate 31 is in threaded connection with the connecting shaft 1 and can be fixed on the connecting shaft 1, the adjusting bolts 32 penetrate through the adjusting base plate 31 and are in threaded connection with the adjusting base plate 31, the front ends of the adjusting bolts 32 are abutted against the back face of the second flat mirror 22, the adjusting bolts 32 comprise 3-6 adjusting bolts which are uniformly arranged on the adjusting base plate 31, the second flat mirror 22 is pushed to be partially inclined in angle by screwing the adjusting bolts 32, and the angles of the second flat mirror 22 are adjusted by adjusting the length of screw rods leaking from the front ends of all the adjusting bolts 32, so that the adjusting effect is. In order to fix the first plane mirror 21 and the second plane mirror 22 conveniently, a shaft sleeve 13 is arranged between the first plane mirror 21 and the second plane mirror 22, as shown in fig. 3, the shaft sleeve 13 is sleeved in the middle of the connecting shaft 1 through a positioning pin or is integrally formed with the connecting shaft 1, the outer diameters of two ends of the shaft sleeve 13 are larger than through holes in the centers of the first plane mirror 21 and the second plane mirror 22, two ends of the shaft sleeve 13 are in a plane and are propped against the first plane mirror 21 and the second plane mirror 22 which are arranged on two sides, and the first plane mirror 21 is clamped between the end surface of the shaft sleeve 13 and the fixing substrate 12 to realize; a gasket is arranged between the second plane mirror 22 and the end face of the shaft sleeve 13, the second plane mirror 22 is clamped between the end face of the shaft sleeve 13 and the adjusting substrate 31, the gasket can be a polytetrafluoroethylene gasket, the gasket is hard, the relative parallelism of the two plane mirrors can be maintained after adjustment, the gasket has the characteristic of certain extension deformation, and the adjustment of the adjusting structure on the second plane mirror 22 is facilitated.
Whether two level crossing are parallel is verified through light refraction reflection to the detection mirror group, specifically including fixed transceiver group and the reflection group who sets up on the base, transceiver group and reflection group set up respectively in the both sides of connecting axle 1, form complete light refraction reflection circuit with two level crossings. The transmitting and receiving set comprises a light source 41, a beam splitter 42 and a detection screen 43, wherein the light source 41 is used for emitting light, the beam splitter 42 is arranged in the middle of one side edge of the first plane mirror 21 and the second plane mirror 22, the light source 41 and the detection screen 43 are respectively arranged on two sides of the beam splitter 42 and far away from the oblique rear part of the connecting shaft 1, the beam splitter 42 is used for dividing the light emitted by the light source 41 into two beams which are respectively projected or refracted onto the two plane mirrors and receiving the reflected light, the projected or refracted structure is fed back onto the detection screen 43, and whether the two plane mirrors are parallel or not is verified through the number of received light spots on the detection screen 43. The reflection set comprises a first reflection mirror 44 and a second reflection mirror 45 which are arranged in an opposite inclined mode, the first reflection mirror 44 and the second reflection mirror 45 have the same included angle with the connecting shaft 1 and are respectively used for reflecting the light refracted by the first flat mirror 21 or the second flat mirror 22, the light source 41 emits light perpendicular to the first reflection mirror 44 or the second reflection mirror 45, and the light refracted by the first flat mirror 21 and the second flat mirror 22 to the first reflection mirror 44 and the second reflection mirror 45 is incident perpendicularly. In order to ensure that the adjusting device is effective in verification and keeps compact in structure, the beam splitter 42 is arranged in the middle of the two plane mirrors, the distance from the beam splitter 42 to the first plane mirror 21 and the distance from the beam splitter 42 to the second plane mirror 22 are the same, the beam splitter 42 is parallel to the first plane mirror 21 as much as possible, the first reflecting mirror 44 and the second reflecting mirror 45 are arranged symmetrically to the beam splitter 42, and the light source 41 and the detection screen 43 are arranged symmetrically to the beam splitter 42.
The verification method is as shown in fig. 4, a light source 41 emits light, the light is converted into two beams through a beam splitter 42 and then respectively enters a first plane mirror 21 and a second plane mirror 22, the two beams are reflected through two sides of the first plane mirror 21 and the second plane mirror 22, the light is respectively and vertically incident on a first reflecting mirror 44 and a second reflecting mirror 45, the reflected light returned by the original paths of the first reflecting mirror 44 and the second reflecting mirror 45 is refracted twice through the first plane mirror 21 and the second plane mirror 22 and then falls onto a detection screen 43 under the action of the beam splitter 42, if the detection screen 43 is a light spot, the two plane mirrors are proved to be parallel, if two photoelectricity exists, the two plane mirrors are not parallel, and need to be adjusted.
Example (b):
an adjustable parallel lens group device comprises a base, and a parallel lens group and a detection lens group which are arranged on the base; the parallel lens group comprises a motor 11, a connecting shaft 1, a first plane mirror 21, a second plane mirror 22 and an adjusting structure, wherein two ends of the connecting shaft 1 are arranged in the middle of the base through a connecting seat, the connecting shaft 1 penetrates through the first plane mirror 21 and the second plane mirror 22 which are oppositely arranged, the motor 11 is connected with one end of the connecting shaft 1, a fixed substrate 12 is fixedly arranged on the back of the first plane mirror 21, and the fixed substrate 12 is fixedly connected with the connecting shaft 1; the adjusting structure is arranged on the back of the second flat mirror 22, the adjusting structure comprises an adjusting base plate 31 and an adjusting bolt 32 penetrating through the adjusting base plate 31, the connecting shaft 1 penetrates through the annular adjusting base plate 31, the adjusting base plate 31 is fixedly connected with the connecting shaft 1, the adjusting bolt 32 is in threaded connection with the adjusting base plate 31, the front end of the adjusting bolt 32 abuts against the back of the second flat mirror 22, and the adjusting bolt 32 comprises 4 adjusting bolts uniformly arranged on the adjusting base plate 31. A shaft sleeve 13 is arranged between the first plane mirror 21 and the second plane mirror 22, the shaft sleeve 13 is sleeved in the middle of the connecting shaft 1 through a positioning pin or is integrally formed with the connecting shaft 1, the outer diameter of two ends of the shaft sleeve 13 is larger than a through hole in the center of the first plane mirror 21 and the second plane mirror 22, and a gasket is sleeved between the shaft sleeve 13 and the second plane mirror 22.
The detection lens group comprises an emission receiving group and a reflection group which are fixedly arranged on the base, and the emission receiving group and the reflection group are respectively arranged on two sides of the connecting shaft 1; the transmitting and receiving set comprises a light source 41, a beam splitter 42 and a detection screen 43, the beam splitter 42 is arranged in the middle of one side edge of the first plane mirror 21 and the second plane mirror 22, the distances from the beam splitter 42 to the first plane mirror 21 and the second plane mirror 22 are the same, the light source 41 and the detection screen 43 are respectively arranged on two sides of the beam splitter 42 away from the oblique rear part of the connecting shaft 1, and the light source 41 and the detection screen 43 are arranged symmetrically to the beam splitter 42; the reflection set comprises a first reflection mirror 44 and a second reflection mirror 45 which are arranged oppositely in an inclined mode, the included angles between the first reflection mirror 44 and the second reflection mirror 45 and the connecting shaft 1 are the same, the first reflection mirror 44 and the second reflection mirror 45 are arranged symmetrically to the beam splitter 42, and light emitted by the light source 41 is perpendicular to the first reflection mirror 44 or the second reflection mirror 45.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (8)
1. An adjustable parallel lens device is characterized in that: the device comprises a base, and a parallel lens group and a detection lens group which are arranged on the base;
the parallel mirror group comprises a motor, a connecting shaft, a first plane mirror, a second plane mirror and an adjusting structure, two ends of the connecting shaft are arranged on the base through a connecting seat, the connecting shaft penetrates through the first plane mirror and the second plane mirror which are oppositely arranged, the motor is connected with one end of the connecting shaft, and the adjusting structure is arranged on the back of the second plane mirror;
the detection mirror group comprises an emission receiving group and a reflection group which are fixedly arranged on the base, and the emission receiving group and the reflection group are respectively arranged on two sides of the connecting shaft;
the transmitting and receiving set comprises a light source, a beam splitter and a detection screen, the beam splitter is arranged between one side edges of the first plane mirror and the second plane mirror, and the light source and the detection screen are respectively arranged on two sides of the beam splitter and are far away from the oblique rear direction of the connecting shaft;
reflection assembly is including the first speculum and the second mirror that relative slope set up, first speculum with the second mirror with the connecting axle contained angle is the same, light source emission light perpendicular to first speculum or second mirror.
2. The apparatus of claim 1, wherein: the adjusting structure comprises an adjusting base plate and an adjusting bolt penetrating through the adjusting base plate, the connecting shaft penetrates through the annular adjusting base plate, the adjusting base plate is fixedly connected with the connecting shaft, the adjusting bolt is in threaded connection with the adjusting base plate, and the front end of the adjusting bolt abuts against the back face of the second plane mirror.
3. The apparatus of claim 2, wherein: the adjusting bolts comprise 3-6 bolts uniformly arranged on the adjusting base plate.
4. The apparatus of any of claims 1-3, wherein: the first plane mirror and the second plane mirror are provided with shaft sleeves in the middle, the shaft sleeves are sleeved in the middle of the connecting shaft through positioning pins or are integrally formed with the connecting shaft, the outer diameters of two ends of the shaft sleeves are larger than the through holes in the centers of the first plane mirror and the second plane mirror, and gaskets are sleeved between the shaft sleeves and the second plane mirror.
5. The apparatus of claim 4, wherein: and a fixed substrate is fixedly arranged on the back of the first plane mirror and is fixedly connected with the connecting shaft.
6. The apparatus of claim 5, wherein: the distances from the beam splitter to the first plane mirror and the second plane mirror are the same.
7. The apparatus of claim 6, wherein: the first mirror and the second mirror are disposed symmetrically to the beam splitter.
8. The apparatus of claim 7, wherein: the light source and the detection screen are arranged symmetrically to the beam splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922435601.6U CN210981185U (en) | 2019-12-30 | 2019-12-30 | Adjustable parallel lens group device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922435601.6U CN210981185U (en) | 2019-12-30 | 2019-12-30 | Adjustable parallel lens group device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210981185U true CN210981185U (en) | 2020-07-10 |
Family
ID=71439185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922435601.6U Active CN210981185U (en) | 2019-12-30 | 2019-12-30 | Adjustable parallel lens group device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210981185U (en) |
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2019
- 2019-12-30 CN CN201922435601.6U patent/CN210981185U/en active Active
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