CN215264018U - Laser radar transmission type coaxial receiving-transmitting telescope - Google Patents
Laser radar transmission type coaxial receiving-transmitting telescope Download PDFInfo
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- CN215264018U CN215264018U CN202121404886.8U CN202121404886U CN215264018U CN 215264018 U CN215264018 U CN 215264018U CN 202121404886 U CN202121404886 U CN 202121404886U CN 215264018 U CN215264018 U CN 215264018U
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Abstract
The utility model belongs to the technical field of atmospheric particulates detection auxiliary assembly, specifically be laser radar transmission-type coaxial receiving and dispatching telescope, including laser instrument, little beam expander group, right side board, roof, intermediate lamella, mounting panel and left side board, right side board and left side board top all with roof fixed connection, fixed connection intermediate lamella between right side board and the left side board, the mounting panel is located the roof below position, laser instrument fixed connection is at the intermediate lamella lower surface, little beam expander group is located the open end position above the roof; the opening end of the upper surface of the top plate is detachably connected with the lower lens barrel through a bolt, and the position of the opening end of the top of the lower lens barrel is spirally connected with the upper lens barrel. The laser coaxial transmission and the telescope coaxial reception are adopted, and the transmission design is adopted, so that the shielding of the traditional secondary mirror on a receiving light path is avoided, the detection blind area is greatly reduced, the high adjustment precision can be achieved, and the detection distance reaches 8-15 km.
Description
Technical Field
The utility model relates to an atmospheric particulates detects auxiliary assembly technical field, specifically is the coaxial receiving and dispatching telescope of laser radar transmission-type.
Background
When detecting atmospheric particulates at present, the technique that usually adopts is traditional cassette design, cassegrain telescope promptly: a reflecting telescope consisting of two reflectors is invented by Cassegrain in 1672. The larger of the mirrors is called the primary mirror and the smaller is called the secondary mirror. Typically, a hole is made in the center of the primary mirror, imaging behind the primary mirror, and its focus is called the Cassegrain focus. Two types of emission sections are also common, off-axis emission and on-axis reflection. The structure is poor in stability and environmental adaptability, has a large blind area, is easy to damage when the reflector is used outdoors, and is too high in cost due to the fact that the main mirror adopts an aspheric surface design.
In order to solve the above problems, the present application provides a lidar transmission-type coaxial transceiver telescope.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to solve the technical problems existing in the background technology, the utility model provides a laser radar transmission-type coaxial transceiver telescope, which is provided with a telescope, an additional correction lens, a compressed optical path and a reduced size; the transmission coaxial design enables the adjustment precision to be higher and the detection distance to be increased; the aspherical mirror design is abandoned, and the cost is reduced; the number of reflectors is reduced, and the stability of the system is improved.
(II) technical scheme
In order to solve the technical problem, the utility model provides a laser radar transmission-type coaxial transceiver telescope, including laser instrument, little beam expander group, right side board, roof, intermediate lamella, mounting panel and left side board, right side board and left side board top all with roof fixed connection, fixed connection intermediate lamella between right side board and the left side board, the mounting panel is located the roof below position, laser instrument fixed connection is at the intermediate lamella lower surface, little beam expander group is located the open end position above the roof;
the open end of the upper surface of the top plate is detachably connected with a lower lens cone through a bolt, the open end of the top of the lower lens cone is spirally connected with an upper lens cone, a third biconvex lens, a fourth biconvex lens and a third biconcave lens are sequentially installed in the upper lens cone from top to bottom, the top of the small beam expander set is respectively provided with a second biconvex lens, a second biconcave lens and a first biconvex lens from top to bottom, the bottom of the small beam expander set is fixedly connected with a carbon tube through a first biconcave lens, the bottom of the carbon tube is provided with a small reflector base, the surface of the small reflector base is fixedly connected with a small reflector frame through a small reflector plate, one side of the small reflector plate is provided with a first plane reflector, the surface of the small reflector frame is inserted with an adjusting screw, a second plane reflector is installed above the middle plate, and the second plane reflector is positioned above the large reflector base, install the diaphragm ware between roof and the intermediate lamella, right side board externally mounted second correction circle, the inboard installation prism seat of right side board, prism seat one side is provided with diaphragm seat, a diaphragm section of thick bamboo and fourth clamping ring, the roof below is provided with plano-convex lens and polarization beam splitter.
Preferably, a third pressing ring is installed at the opening end of the upper lens barrel, the third pressing ring is located on the upper surface of a third biconvex lens, a space ring is filled between the third biconvex lens and the fourth biconvex lens, the third biconvex lens is pressed and fixed through the third pressing ring, the stability is improved, the space ring effectively keeps the standard space set between the third biconvex lens and the fourth biconvex lens, and the use is facilitated.
Preferably, the first correction ring is installed outside the third biconcave lens, the correction screw is installed below the third biconcave lens, the first pressing ring and the second pressing ring are installed outside the third biconcave lens, the first correction ring is arranged, and the correction screw is matched for use, so that the position of the third biconcave lens can be corrected conveniently, and the definition is improved.
Preferably, middle plate surface fixed connection clamping ring A, the carbon tube runs through clamping ring A and is fixed connection, through clamping ring A to the supplementary installation of carbon tube and direction, improve stability.
Preferably, the upper surface of the second plane mirror is fixedly connected with a pressing strip, and the pressing strip improves the stability of the second plane mirror and prevents deviation.
Preferably, a cover plate is arranged at the position above the laser in the inclined direction, the fourth pressing ring is pressed on the surface of the diaphragm cylinder, a trimming ring is arranged on one side of the diaphragm cylinder, and the diaphragm cylinder is installed in an auxiliary mode through the fourth pressing ring.
The above technical scheme of the utility model has following profitable technological effect:
1. the utility model discloses a coaxial design of transmission owing to do not have external speculum, has consequently avoided the coaxial external speculum damage problem of card formula, and in addition, the lens all uses the spherical mirror for cost reduction is a lot of, and the beam expanding mirror is little a lot of relatively inferior mirror, so surveys the blind area and also correspondingly reduces a lot.
2. The utility model discloses owing to be coaxial transmission design, laser emission's beam expander is in the telescope, and coaxial timing precision is very high for detection distance is very far, uses the method of mechanical fixation with aviation silica gel in fixed knot constructs, makes light path stability fine.
3. The utility model discloses because the coaxial design of transmission, transmission light path and receiving light path can coincide, lead to seriously interfering, through the accurate calculation of optics, designed the carbon fiber isolating device of transmission receiving light path, effectively kept apart the mutual interference problem of two light paths.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of the optical path structure of the present invention.
Reference numerals:
1. a laser; 2. a small beam expander set; 3. a first planar mirror; 4. a first biconcave lens; 5. a first biconvex lens; 6. a second biconcave lens; 7. a second biconvex lens; 8. a third biconvex lens; 9. a fourth lenticular lens; 10. a third biconcave lens; 11. a second planar mirror; 12. a plano-convex lens; 13. a polarizing beam splitter; 14. a prism seat; 15. a right side plate; 16. a top plate; 17. a middle plate; 18. mounting a plate; 19. a lower barrel; 20. a first clamping ring; 21. a second clamping ring; 22. a first correction loop; 23. an upper barrel; 24. a space ring; 25. a third clamping ring; 26. correcting the screw; 27. a second correction ring; 28. a large reflector base; 29. a left side plate; 30. a carbon tube; 31. a connecting ring A; 32. a small reflector base; 33. a small mirror plate; 34. a small mirror frame; 35. an adjusting screw; 36. a diaphragm seat; 37. a diaphragm cylinder; 38. a fourth clamping ring; 39. layering; 40. a cover plate; 41. a diaphragm device; 42. and (6) trimming the ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a schematic view of the overall structure of the present invention;
as shown in fig. 1, the utility model provides a laser radar transmission-type coaxial transceiver telescope, including laser instrument 1, little beam expanding mirror group 2, right side board 15, roof 16, intermediate lamella 17, mounting panel 18 and left side board 29, right side board 15 and the 29 tops of left side board all with roof 16 fixed connection, fixed connection intermediate lamella 17 between right side board 15 and the left side board 29, mounting panel 18 is located roof 16 below position, laser instrument 1 fixed connection is at intermediate lamella 17 lower surface, little beam expanding mirror group 2 is located the open end position of roof 16 top;
the open end of the upper surface of the top plate 16 is detachably connected with a lower lens cone 19 through a bolt, the open end of the top of the lower lens cone 19 is spirally connected with an upper lens cone 23, a third biconvex lens 8, a fourth biconvex lens 9 and a third biconcave lens 10 are sequentially installed in the upper lens cone 23 from top to bottom, the top of the small beam expander set 2 is respectively provided with a second biconvex lens 7, a second biconcave lens 6 and a first biconvex lens 5 from top to bottom, the bottom end of the small beam expander set 2 is fixedly connected with a carbon tube 30 through a first biconcave lens 4, the bottom end of the carbon tube 30 is provided with a small reflector base 32, the surface of the small reflector base 32 is fixedly connected with a small reflector bracket 34 through a small reflector plate 33, one side of the small reflector plate 33 is provided with a first plane reflector 3, the surface of the small reflector bracket 34 is inserted with an adjusting screw 35, the second plane reflector 11 is installed above the middle plate 17, and the second plane mirror 11 is located above the large mirror base 28, a diaphragm device 41 is installed between the top plate 16 and the middle plate 17, the second correction ring 27 is installed outside the right side plate 15, the prism base 14 is installed inside the right side plate 15, a diaphragm base 36, a diaphragm cylinder 37 and a fourth pressing ring 38 are arranged on one side of the prism base 14, and the plano-convex lens 12 and the polarization beam splitter 13 are arranged below the top plate 16.
In this embodiment, as shown in fig. 1, a third pressing ring 25 is mounted at the open end of the upper barrel 23, the third pressing ring 25 is located on the upper surface of the third biconvex lens 8, and a space 24 is filled between the third biconvex lens 8 and the fourth biconvex lens 9.
It should be noted that, the third biconvex lens 8 is pressed and fixed by the third pressing ring 25, so that the stability is improved, and the spacer ring 24 effectively maintains the standard distance set between the third biconvex lens 8 and the fourth biconvex lens 9, thereby facilitating the use.
In this embodiment, as shown in fig. 1, a first calibration ring 22 is externally installed on the third biconcave lens 10, a calibration screw 26 is installed below the third biconcave lens 10, and a first pressing ring 20 and a second pressing ring 21 are externally installed on the third biconcave lens 10.
It should be noted that the first calibration ring 22 is provided and used in cooperation with the calibration screw 26 to facilitate calibration of the position of the third biconcave lens 10, thereby improving the definition.
In the present embodiment, as shown in fig. 1, the intermediate plate 17 is fixedly connected to a connecting ring a31, and the carbon tube 30 penetrates through the connecting ring a31 and is fixedly connected.
The carbon tube 30 is assisted in installation and guidance by the connecting ring a31, which improves stability.
In the present embodiment, as shown in fig. 1, a bead 39 is fixedly connected to the upper surface of the second plane mirror 11.
The beads 39 improve the stability of the second plane mirror 11 and prevent displacement.
In this embodiment, as shown in fig. 1, a cover plate 40 is disposed at a position obliquely above the laser 1, the fourth pressing ring 38 is pressed on the surface of the diaphragm cylinder 37, and a trimming ring 42 is disposed at one side of the diaphragm cylinder 37.
Note that the diaphragm casing 37 is attached to the fourth pressing ring 38 in an auxiliary manner.
The utility model discloses a theory of operation and use flow: atmospheric particulates monitoring laser radar (high energy scanning series) adopts pulse laser of wavelength 532nm wavelength to carry out remote sensing to atmospheric particulates, pulse laser gets into the atmosphere after the collimation expands, interact with particulate matter in the atmosphere, produce the backscattered light, the scattered signal is received by the telescope system, assemble to optical analysis system, form 532nm parallel, 532nm two perpendicular channel signal, through photoelectric detection system and signal acquisition system, the extinction coefficient and the depolarization factor spatial distribution (profile) of atmospheric particulates are shown by the computer reflection, and then can acquire atmospheric particulates space-time distribution characteristic, the pollution layer space-time variation, atmospheric quality information such as particulate matter transport and settlement.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. Laser radar transmission type coaxial transceiving telescope, including laser instrument (1), little beam expander group (2), right side board (15), roof (16), intermediate lamella (17), mounting panel (18) and left side board (29), characterized in that, right side board (15) and left side board (29) top all with roof (16) fixed connection, fixed connection intermediate lamella (17) between right side board (15) and the left side board (29), mounting panel (18) are located roof (16) below position, laser instrument (1) fixed connection is at intermediate lamella (17) lower surface, little beam expander group (2) are located the opening end position above roof (16);
the open end of roof (16) upper surface passes through bolt can dismantle connection lower lens cone (19), the top opening end position spiral connection upper lens cone (23) of lower lens cone (19), upper lens cone (23) are inside from last to installing third biconvex lens (8), fourth biconvex lens (9) and third biconcave lens (10) down in proper order, the top of little beam expander group (2) is from last to installing second biconvex lens (7), second biconcave lens (6) and first biconcave lens (5) down respectively, little beam expander group (2) bottom is through first biconcave lens (4) fixed connection carbon tube (30), carbon tube (30) bottom is provided with little speculum seat (32), little speculum seat (32) surface is through little speculum plate (33) fixed connection little speculum frame (34), little speculum plate (33) one side-mounting first plane reflecting mirror (3), little speculum frame (34) surface grafting adjusting screw (35), second plane reflector (11) is installed to intermediate lamella (17) top, and second plane reflector (11) are located big reflector seat (28) top position, install diaphragm ware (41) between roof (16) and intermediate lamella (17), circle (27) are corrected to right side board (15) externally mounted second, prism seat (14) are installed to right side board (15) inboard, prism seat (14) one side is provided with diaphragm seat (36), diaphragm section of thick bamboo (37) and fourth clamping ring (38), roof (16) below is provided with plano-convex lens (12) and polarization beam splitter (13).
2. The lidar transmissive coaxial transceiver telescope according to claim 1, wherein a third pressing ring (25) is mounted at the open end of the upper barrel (23), the third pressing ring (25) is located on the upper surface of the third biconvex lens (8), and a spacer ring (24) is filled between the third biconvex lens (8) and the fourth biconvex lens (9).
3. The lidar transmissive coaxial transceiver telescope of claim 1, wherein the third biconcave lens (10) is externally provided with a first calibration ring (22), the third biconcave lens (10) is provided with a calibration screw (26) thereunder, and the third biconcave lens (10) is externally provided with a first clamping ring (20) and a second clamping ring (21).
4. The lidar transmissive coaxial transceiver telescope according to claim 1, wherein the intermediate plate (17) is fixedly connected to a connection ring a (31), and the carbon tube (30) penetrates the connection ring a (31) and is fixedly connected thereto.
5. The lidar transmissive coaxial transceiver telescope of claim 1, wherein a bead (39) is fixedly attached to an upper surface of the second planar mirror (11).
6. The lidar transmissive coaxial transceiver telescope according to claim 1, wherein a cover plate (40) is disposed obliquely above the laser (1), the fourth pressing ring (38) is pressed on the surface of the diaphragm cylinder (37), and a trimming ring (42) is disposed on one side of the diaphragm cylinder (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121404886.8U CN215264018U (en) | 2021-06-23 | 2021-06-23 | Laser radar transmission type coaxial receiving-transmitting telescope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121404886.8U CN215264018U (en) | 2021-06-23 | 2021-06-23 | Laser radar transmission type coaxial receiving-transmitting telescope |
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| Publication Number | Publication Date |
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| CN215264018U true CN215264018U (en) | 2021-12-21 |
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| CN202121404886.8U Active CN215264018U (en) | 2021-06-23 | 2021-06-23 | Laser radar transmission type coaxial receiving-transmitting telescope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118311606A (en) * | 2024-06-07 | 2024-07-09 | 珩辉光电测量技术(吉林)有限公司 | Mie scattering laser radar and optical axis calibration method thereof |
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2021
- 2021-06-23 CN CN202121404886.8U patent/CN215264018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118311606A (en) * | 2024-06-07 | 2024-07-09 | 珩辉光电测量技术(吉林)有限公司 | Mie scattering laser radar and optical axis calibration method thereof |
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