CN209606703U - Transceiver telescope and open path gas analyzer - Google Patents
Transceiver telescope and open path gas analyzer Download PDFInfo
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- CN209606703U CN209606703U CN201920415058.0U CN201920415058U CN209606703U CN 209606703 U CN209606703 U CN 209606703U CN 201920415058 U CN201920415058 U CN 201920415058U CN 209606703 U CN209606703 U CN 209606703U
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- mirror
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Abstract
The utility model provides a kind of transceiver telescope, including principal reflection component, and the principal reflection component includes principal reflection mirror, and the principal reflection mirror has primary reflection surface；Secondary reflection component, the secondary reflection component includes secondary mirror, and the secondary mirror has secondary reflector, and the secondary reflector and the primary reflection surface are coaxial；Focal plane, the focal plane is between the primary reflection surface and the secondary reflector.Transceiver telescope and open path gas analyzer provided by the utility model can reduce the radial dimension of secondary mirror, to reduce the area of secondary mirror, reduce the ratio of obstruction, to reduce light loss, capacity usage ratio is improved, and then improves the optical efficiency of open path gas analyzer.
Description
Technical field
The utility model belongs to gas detecting instrument field more particularly to a kind of transceiver telescope and open path gas
Body analyzer.
Background technique
Open path gas analyzer is one of the important instrument of Trace gas detection in surrounding air, and telescope is open
Important component in light path gas analyzer.
In the prior art usually using Cassegrain's formula telescope, with reference to attached drawing 1, principal reflection mirror 2 ' and 3 ' position of secondary mirror
In lens barrel 1 ', transceiver optical fiber 4 ' is located at principal reflection mirror 2 ' far from 3 ' side of secondary mirror, principal reflection mirror 2 ', secondary mirror
3 ' and the axis of transceiver optical fiber 4 ' coincide with the axis of lens barrel 1 '.
But the secondary mirror area of Cassegrain's formula telescope in the prior art is larger, blocks bigger, light loss
It is more, so that the capacity usage ratio of open path gas analyzer is lower, reduce the optics of the analyzer using the telescope
Efficiency.
Utility model content
For secondary mirror area in the prior art it is larger caused by the more technical problem of optical loss, this is practical new
Type provides a kind of transceiver telescope and open path gas analyzer, reduces the area of secondary mirror, reduces screening
Ratio is blocked, to reduce light loss, improves capacity usage ratio, and then improves the optics effect of open path gas analyzer
Rate.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of transceiver telescope, including
Principal reflection component, the principal reflection component includes principal reflection mirror, and the principal reflection mirror has primary reflection surface；
Secondary reflection component, the secondary reflection component includes secondary mirror, and the secondary mirror has secondary reflector, described secondary
Reflecting surface is opposite with the primary reflection surface and is coaxially disposed；
Focal plane, the focal plane is between the primary reflection surface and the secondary reflector.
Further, the primary reflection surface is paraboloid.
Further, the secondary reflector is hyperboloid.
Further, the principal reflection mirror and the secondary mirror are aluminum alloy materials.
It further, further include lens barrel, described lens barrel one end connects the principal reflection component, and the lens barrel other end connects institute
State secondary reflection component.
Further, the secondary reflection component further includes supporting element, and the supporting element includes:
First connecting portion, the first connecting portion are located on lens barrel axis, and the first connecting portion connects the secondary reflection
Mirror；
Second connecting portion, the second connecting portion connect the lens barrel；
Support rod, the support rod connect the first connecting portion and the second connecting portion.
A kind of open path gas analyzer, the transceiver telescope including any of the above-described, further includes transmitting-receiving subassembly,
The transmitting-receiving subassembly passes through the principal reflection component, and the transmitting-receiving subassembly has transmitter and receiver, and the transmitter and receiver is located at
On the focal plane.
Compared with prior art, the utility model has the beneficial effects that:
1. transceiver telescope provided by the utility model and open path gas analyzer, focal plane is set to
Between primary reflection surface and secondary reflector.Such as when receiving light, light first passes around primary reflection surface and reflexes to secondary reflector, then passes through
Secondary reflector focuses on focal plane (light communication process is opposite when launching outward light) after secondary reflection again.It is set compared to focal plane
Primary reflection surface is placed in far from secondary reflector one end, transceiver telescope provided by the utility model can reduce secondary mirror
Radial dimension reduce the ratio of obstruction to reduce the area of secondary mirror, to reduce light loss, improve energy benefit
With rate, and then improve the optical efficiency of open path gas analyzer.
2. transceiver telescope provided by the utility model and open path gas analyzer, principal reflection mirror and time anti-
Mirror is penetrated using aluminum alloy materials, turnery processing can be carried out, reduce the processing cost of principal reflection mirror and secondary mirror, while
Alleviate the weight of principal reflection mirror and secondary mirror.
Detailed description of the invention
Fig. 1 is the structure and light path schematic diagram of Cassegrain's formula telescope in the prior art；
Fig. 2 is the overall structure diagram of transceiver telescope provided by the present embodiment；
Fig. 3 is the schematic cross-sectional view of transceiver telescope in Fig. 2；
Fig. 4 is the light path schematic diagram of transceiver telescope provided by the present embodiment.
Fig. 5 is the structural schematic diagram of supporting element in Fig. 3.
Appended drawing reference is specifically described below:
1 ', lens barrel；2 ', principal reflection mirror；3 ', secondary mirror；4 ', transceiver optical fiber；5 ' focal planes；1, lens barrel；11, main
Reflect fixed part；12, secondary reflection fixed part；2, principal reflection component；21, principal reflection mirror；211, primary reflection surface；212, through-hole；22,
First fixing piece；23, the first adjustment part；3, secondary reflection component；31, secondary mirror；311, secondary reflector；32, supporting element；321,
First connecting portion；322, fixation hole；323, support rod；324, second connecting portion；33, the second fixing piece；34, second adjustment part；
4, transmitting-receiving subassembly；41, launching fiber；42, reception optical fiber；43, transmitter and receiver；5, light source；6, spectrometer；7, focal plane.
Specific embodiment
The technical solution in the utility model specific embodiment in detail, completely describe below in conjunction with attached drawing.
Obviously, described embodiment is only the part specific embodiment of the total technical solution of the utility model, and not all
Embodiment.Total design based on the utility model, those of ordinary skill in the art's every other embodiment obtained, all
Fall within the range of the utility model protection.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
Novel limitation.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
For the larger technical problem for causing the ratio of obstruction larger of secondary mirror area in the prior art, the utility model is provided
A kind of transceiver telescope and open path gas detecting instrument, can reduce the area of secondary mirror, reduce the ratio of obstruction, from
And light loss is reduced, capacity usage ratio is improved, and then improve the optical efficiency of open path gas analyzer.
In conjunction with specific embodiments and attached drawing elaborates to technical solutions of the utility model.
With reference to attached drawing 3, the present embodiment provides a kind of transceiver telescopes, including
Principal reflection component 2, principal reflection component 2 include principal reflection mirror 21, and principal reflection mirror 21 has primary reflection surface 211；
Secondary reflection component 3, secondary reflection component 3 include secondary mirror 31, and secondary mirror 31 has secondary reflector 311, secondary anti-
It penetrates face 311 and primary reflection surface 211 relatively and is coaxially disposed；
Focal plane 7, focal plane 7 is between primary reflection surface 211 and secondary reflector 311.
The technical effect of the utility model is illustrated with reference to attached drawing 1 and attached drawing 4.Attached drawing 1 is institute in the prior art
The structure and light path schematic diagram of Cassegrain's formula telescope of offer, the prior art are remote with principal reflection mirror 2 ' by the setting of focal plane 5 '
Side from secondary mirror 3 '.Light propagates in secondary mirror 3 ' after being reflected by principal reflection mirror 2 ', and secondary mirror 3 ' is to light
Line is reflected, and light focuses on focal plane 5 ' after the centre bore of principal reflection mirror 2 '.Attached drawing 4 is provided by the present embodiment
Transceiver telescope structure and light path schematic diagram, by focal plane 7 be set to primary reflection surface 211 and secondary reflector 311 it
Between.When receiving light, light first passes around primary reflection surface 211 and reflexes on secondary reflector 311, then again through secondary reflector 311
(when launching outward light light communication process opposite) is focused on focal plane 7 after reflection.In primary reflection surface 211 and principal reflection mirror 2 '
The identical situation of reflecting surface size under, the radial dimension of secondary reflector 311 needed for the present embodiment is smaller, so secondary mirror
31 area is smaller, to reduce central shielding, reduces the ratio of obstruction, reduces light loss, improves capacity usage ratio, into
And improve the optical efficiency of open path gas analyzer.According to practical situations, with reference to attached drawing 1 and attached drawing 4, when main anti-
Penetrate mirror 2 ' it is equal with the real work radial dimension of primary reflection surface 211 when, that is, when being φ 120mm, needed for secondary mirror 2 ' most
Small radial direction is having a size of φ 43.79mm, and smallest radial needed for secondary mirror 31 is having a size of φ 16.84, compared to secondary mirror 2 '
Radial dimension reduces 61.5%, reduces the ratio of obstruction, improves capacity usage ratio.
With reference to attached drawing 3, the principal reflection mirror 21 of the present embodiment is circular optical element, and principal reflection mirror 21 has primary reflection surface
211, primary reflection surface 211 is paraboloid.21 center of principal reflection mirror has through-hole 212.Secondary mirror 31 is circular optical element,
Secondary mirror 31 has secondary reflector 311, and secondary reflector 311 is hyperboloid.Primary reflection surface 211 and secondary reflector 311 it is opposite and
Coaxial arrangement.Between the setting of focal plane 7 and primary reflection surface 211 and secondary reflector 311.It can be by adjusting 211 He of primary reflection surface
The Surface Parameters and the distance between primary reflection surface 211 and secondary reflector 311 of secondary reflector 311, to adjust the position of focal plane 7
It sets, makes focal plane 7 between primary reflection surface 211 and secondary reflector 311.
For the ease of processing and installation, and the rigidity of optical element is improved, mitigates the weight of optical element, the present embodiment
Principal reflection mirror 21 and secondary mirror 31 are aluminum alloy materials, using the method for turnery processing.Principal reflection mirror 21 and primary reflection surface
211 opposite faces can be designed using hollow type loss of weight, in the case where not influencing the reflection function of primary reflection surface 211, be guaranteed
Reduce weight while rigidity to the greatest extent.The face opposite with secondary reflector 311 of secondary mirror 31 is provided with the threaded hole for connection,
In the case where not influencing the reflection function of secondary reflector 311, it is possible to reduce connector simplifies mechanical structure.
In order to improve the capacity usage ratio of transceiver telescope provided by the present embodiment, primary reflection surface 211 and time anti-
The high-reflecting film that can plate operating spectrum band is penetrated on face 311, the reflectivity to the light of operating spectrum band is improved, reduces the loss of light.
In order to improve the concentricity of primary reflection surface 211 and secondary reflector 311, the present embodiment further includes lens barrel 1.With reference to attached drawing
2, lens barrel 1 is hollow cylinder, and one end is provided with principal reflection fixed part 11, and the other end is provided with secondary reflection fixed part 12.Principal reflection
Fixed part 11 is for fixing principal reflection component 2, and secondary reflection fixed part 12 is for fixing secondary reflection component 3.Principal reflection component 2 and time
The axis of reflection subassembly 3 and the axis of lens barrel 1 coincide.
Principal reflection component 2 further includes the first fixing piece 22 and the first adjustment part 23.Principal reflection fixed part 11 is step surface, platform
Internal screw thread is provided on the outside of terrace.First fixing piece 22 is annulus, is provided with the outer spiral shell matched with the internal screw thread on the outside of annulus
Line, the first fixing piece 22 is matched with the internal screw thread of principal reflection fixed part 11 is fixed on principal reflection mirror 21 in step surface.
Secondary reflection component 3 further includes supporting element 32, the second fixing piece 33 and second adjustment part 34.With reference to attached drawing 5, supporting element
32 include first connecting portion 321, second connecting portion 324 and support rod 323.First connecting portion 321 is disc, first connecting portion
321 are set on the axis of lens barrel 1, and fixation hole 322 is provided in first connecting portion 321, and screw can be used across fixation hole
322 are connected with the threaded hole of secondary mirror 31, and secondary mirror 31 is fixed in first connecting portion 321.Second connecting portion 324
For circular ring shape, second connecting portion 324 is located in the secondary reflection fixed part 12 of lens barrel 1.Support rod 323 connects first connecting portion 321
With second connecting portion 324, there are three support rods 323, is uniformly distributed in 120 °, improves the support stability of supporting element 32, together
When decrease light blocked, reduce influence of the supporting element 32 to optical energy.Second adjustment part 34 is located at supporting element 32
First connecting portion 321 and secondary mirror 31 between, for adjusting the installation site of secondary mirror 31, facilitate secondary mirror 31
Adjustment.Secondary reflection fixed part 12 is step surface, is provided with internal screw thread on the outside of step surface.Second fixing piece 33 is annulus, outside annulus
Side is provided with the external screw thread matched with the internal screw thread, the second fixing piece 33 matched with the internal screw thread of secondary reflection fixed part 12 by
Secondary mirror 31 is fixed in step surface.
The present embodiment further includes a kind of open path gas analyzer, and the transceiver telescope including the present embodiment is gone back
Including transmitting-receiving subassembly 4, transmitting-receiving subassembly 4 passes through principal reflection component 2, and transmitting-receiving subassembly 4 has transmitter and receiver 43, transmitter and receiver 43
On focal plane 7.
Specifically, being provided with through-hole 212 on principal reflection mirror 21 with reference to attached drawing 3 and attached drawing 4, transmitting-receiving subassembly 4 passes through through-hole
212, transmitter and receiver 43 is set on focal plane 7.Principal reflection component 2 further includes the first adjustment part 23, the first adjustment part 23
It is placed on transmitting-receiving subassembly 4, and between principal reflection mirror 21 and transmitting-receiving subassembly 4, for adjusting the transmitter and receiver of transmitting-receiving subassembly 4
43 position enables transmitter and receiver 43 to adjust to focal plane 7.Transmitting-receiving subassembly 4 is formed using a plurality of optical fiber combination, including
Launching fiber 41 and reception optical fiber 42.Launching fiber 41 is connected with light source 5, and the light for issuing light source 5 is through the present embodiment
Transceiver telescope project away.Reception optical fiber 42 is connected with spectrometer 6, for will be through the transceiver of the present embodiment
The optical transport that telescope receives convergence carries out analytical calculation into spectrometer 6.
For convenience of the understanding to the present embodiment technical solution, elaborate below to the motion process of the present embodiment:
When transmitting, the emitted optical fiber 41 of light that light source 5 issues is launched by transmitter and receiver 43, the light warp of transmitting
Secondary reflector 311 reflexes on primary reflection surface 211, and then light is penetrated through primary reflection surface 211 to 311 direction of secondary reflector in parallel
Out；When reception, the parallel rays from infinity is received through primary reflection surface 211 first, is then reflexed to through primary reflection surface 211 secondary
It on reflecting surface 311, then reflects and is focused on focal plane 7 through secondary reflector 311, be now placed in transmitter and receiver 43 on focal plane 7
Light is received, received optical fiber 42 is transmitted in spectrometer 6.
Claims (7)
1. a kind of transceiver telescope, which is characterized in that including
Principal reflection component, the principal reflection component includes principal reflection mirror, and the principal reflection mirror has primary reflection surface；
Secondary reflection component, the secondary reflection component includes secondary mirror, and the secondary mirror has secondary reflector, the secondary reflection
Face is opposite with the primary reflection surface and is coaxially disposed；
Focal plane, the focal plane is between the primary reflection surface and the secondary reflector.
2. transceiver telescope according to claim 1, which is characterized in that the primary reflection surface is paraboloid.
3. transceiver telescope according to claim 1, which is characterized in that the secondary reflector is hyperboloid.
4. described in any item transceiver telescopes according to claim 1~3, which is characterized in that the principal reflection mirror and institute
Stating secondary mirror is aluminum alloy materials.
5. transceiver telescope according to claim 1, which is characterized in that further include lens barrel, described lens barrel one end connects
The principal reflection component is connect, the lens barrel other end connects the secondary reflection component.
6. transceiver telescope according to claim 5, which is characterized in that the secondary reflection component further includes support
Part, the supporting element include:
First connecting portion, the first connecting portion are located on lens barrel axis, and the first connecting portion connects the secondary mirror；
Second connecting portion, the second connecting portion connect the lens barrel；
Support rod, the support rod connect the first connecting portion and the second connecting portion.
7. a kind of open path gas analyzer, which is characterized in that including the described in any item transceivers of claim 1~6
Telescope further includes transmitting-receiving subassembly, and the transmitting-receiving subassembly passes through the principal reflection component, and there is the transmitting-receiving subassembly transmitting to receive
End, the transmitter and receiver are located on the focal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415058.0U CN209606703U (en) | 2019-03-28 | 2019-03-28 | Transceiver telescope and open path gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415058.0U CN209606703U (en) | 2019-03-28 | 2019-03-28 | Transceiver telescope and open path gas analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209606703U true CN209606703U (en) | 2019-11-08 |
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ID=68407012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920415058.0U Active CN209606703U (en) | 2019-03-28 | 2019-03-28 | Transceiver telescope and open path gas analyzer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782425A (en) * | 2019-03-28 | 2019-05-21 | 青岛海纳光电环保有限公司 | Transceiver telescope and open path gas analyzer |
| CN114112963A (en) * | 2021-11-30 | 2022-03-01 | 青岛崂应海纳光电环保集团有限公司 | Gas telemetering telescope |
-
2019
- 2019-03-28 CN CN201920415058.0U patent/CN209606703U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782425A (en) * | 2019-03-28 | 2019-05-21 | 青岛海纳光电环保有限公司 | Transceiver telescope and open path gas analyzer |
| CN114112963A (en) * | 2021-11-30 | 2022-03-01 | 青岛崂应海纳光电环保集团有限公司 | Gas telemetering telescope |
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