CN107421647A - Common-path transmitting and receiving device for thermopile detector - Google Patents
Common-path transmitting and receiving device for thermopile detector Download PDFInfo
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- CN107421647A CN107421647A CN201710568700.4A CN201710568700A CN107421647A CN 107421647 A CN107421647 A CN 107421647A CN 201710568700 A CN201710568700 A CN 201710568700A CN 107421647 A CN107421647 A CN 107421647A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/28—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using photoemissive or photovoltaic cells
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Abstract
The invention discloses a common-light-path transmitting and receiving device for a thermopile detector, which comprises a laser transmitting unit, a light-gathering receiving unit, a rotating base (11) and a supporting double arm (12), wherein the light-gathering receiving unit comprises a Fresnel lens (1), a multi-stage reflector (2) and a light-homogenizing rod (3), the laser transmitting unit comprises a first corner device (4), a beam limiting diaphragm (5) and a second corner device (6), a laser (7) and the thermopile detector (8) are respectively installed in a transmitting chamber (9) and a receiving chamber (10) and can be disassembled, and all components are assembled by a packaging shell and corresponding supporting parts. The invention adopts the refraction-reflection secondary light condensation system consisting of the Fresnel lens and the multi-stage reflector, increases the optical receiving efficiency of the echo light, adopts the common light path structure form of integrating light beam emission and reception, greatly reduces the complexity of the system, and has simple and compact structure and low manufacturing cost.
Description
Technical field
The present invention relates to optical design and infrared detection field, a kind of particularly common light path for thermopile detector
Sending and receiving apparatus.
Background technology
With pipeline Industry Quick Development, the security of long line gas pipeline is increasingly taken seriously, and pipeline is let out
Missing inspection survey technology is the important guarantee of pipe safety stable operation.Laser detection based on near-infrared semiconductor absorber spectral technique
Method, with high sensitivity, the advantage such as the response time is fast, selectivity is strong, and can combine car compared with traditional detection method
Carry or airborne, be increasingly being applied to the remote sensing of long line gas pipeline leakage.
Currently the majority the optical receiving system of laser detector the echo from distant place reflecting target is regarded as and gathered
The parallel light of optical lens optical axis, when echo impinges perpendicularly on lens, only the light sensation face face of detector need to be arranged in optically focused
The focal plane of lens.But during actually detected, because the surface reflection condition of atural object or pipeline is complicated and laser returns
Ripple can be influenceed by atmospheric turbulance, and the light reflected back will necessarily have certain angle with lens axis.If it is used alone
Refraction type condenser lens, because the presence of incident ray drift angle causes focal shift, influences detector as optically focused reception device
Photosurface receiving efficiency, the detectivity of system is caused to decline.
Thermopile IR detector is a kind of conventional Laser Detecting Set of laser detection system, and its response to echo is only
It is relevant with the laser power received, it is unrelated with tested wavelength, therefore with the wide advantage of response wave band, it is different by installing
Optical filter is that the laser acquisition to different wave length can be achieved, meanwhile, it can work at room temperature, without refrigeration.But common
Thermopile IR detector photosurface diameter generally only has 10mm, and lacks corresponding optical receiving system, and thermoelectric pile is red
External detector is extremely inefficient for echo receiving in infrared detection system, can not normal operation during Trace gas detection.
The content of the invention
In order to realize that Laser emission is integrated with receiving, the invention provides a kind of common light for thermopile detector
Road sending and receiving apparatus, the common light path sending and receiving apparatus for being used for thermopile detector use Fresnel Lenses and higher order reflection
Microscope group into folding-anti-secondary condensation system, increase the optics receiving efficiency to echo light, and one is received using beam emissions
The common light channel structure form changed, greatly reduces system complexity, makes simple and compact for structure, and manufacturing cost is cheap.
The technical solution adopted for the present invention to solve the technical problems is：A kind of common light path for thermopile detector is sent out
Penetrate reception device, including optically focused receiving unit and laser emission element；The optically focused receiving unit contains the positive direction along primary optical axis
Fresnel Lenses, multiple levels of reflectors, optical tunnel and the thermopile detector being arranged in order, multiple levels of reflectors and optical tunnel are two
Hold open tubular structure, the inner surface of multiple levels of reflectors and the inner surface of optical tunnel are reflecting surface, the light of Fresnel Lenses
The axis of axle, the axis of multiple levels of reflectors and optical tunnel with the key light overlapping of axles；The laser emission element can launch with
The laser beam of key light overlapping of axles, the direction of the launch of the laser beam are the negative direction of primary optical axis.
Fresnel Lenses is located in the arrival end of multiple levels of reflectors, and the focus of Fresnel Lenses is located at going out for multiple levels of reflectors
Mouth end, the connection corresponding with the port of export of multiple levels of reflectors of the arrival end of optical tunnel.
The internal diameter of the arrival end of multiple levels of reflectors is more than the internal diameter of the port of export of multiple levels of reflectors, along the pros of primary optical axis
To, multiple levels of reflectors contain the first paragraph being sequentially connected, second segment, the 3rd section, the 4th section, the 5th section, the 6th section, the 7th section,
8th section and the 9th section.
The inner surface of first paragraph is in cylindrical structural, second segment, the 3rd section, the 4th section, the 5th section, the 6th section, the 7th section
Inner surface with the 8th section is in cylindrical machine shape structure, second segment, the 3rd section, the 4th section, the 5th section, the 6th section, the 7th section and
The internal diameter of eight sections of the port of export is sequentially reduced.
9th section is that parabola rotates the surface of revolution to be formed by axle of primary optical axis；Equation corresponding to the parabola is：f
(X)=- 0.009496X2-0.0331X+11.41；In the equation, X ∈ [0,24].
The inner surface of optical tunnel is positive six prismsby shape, and axis and the key light overlapping of axles of the positive six prismsby shape, optical tunnel go out
Mouth end and the light sensation face of thermopile detector are connected, and receiving chamber dividing plate is provided with the port of export of optical tunnel.
The laser emission element contains the generating laser set gradually, the first gyrator, beam-defining jaw and the second corner
Device, the second gyrator are located at the center of Fresnel Lenses, and the first gyrator and the second gyrator can be by laser transmitter projects
The laser beam gone out is changed into the laser beam with key light overlapping of axles.
Generating laser and the first gyrator are located at outside multiple levels of reflectors, and the second gyrator is located in multiple levels of reflectors, limit
Beam diaphragm is located at the side wall of multiple levels of reflectors, and the arrival end of the first gyrator is towards generating laser, the outlet of the first gyrator
End towards the second gyrator arrival end, the port of export of the second gyrator towards primary optical axis negative direction, in Fresnel Lenses
The heart is provided with centre bore, and the port of export of the second gyrator is located in the centre bore, and beam-defining jaw is located at the port of export of the first gyrator
And second gyrator arrival end between.
The common light path sending and receiving apparatus for thermopile detector also includes bay and receiving chamber, and receiving chamber is
At least tubular structure of one end open, the optically focused receiving unit are arranged in receiving chamber, the opening of Fresnel Lenses and receiving chamber
Hold corresponding, primary optical axis is horizontal, and bay is fixed on outside the top of receiving chamber, generating laser and the first gyrator position
In in bay.
The common light path sending and receiving apparatus for thermopile detector also includes rotating base and support both arms, receives
Room is located at the top of rotating base, and by supporting both arms to connect between receiving chamber and rotating base, support both arms lead to receiving chamber
Overdamp knob connects, and receiving chamber can rotate in horizontally and vertically direction, front and rear two parts are divided into bay, this front and rear two
Baffle plate is provided between part, the first gyrator is located at the forward part of bay, and generating laser is located at the rear part of bay.
The beneficial effects of the invention are as follows：
1st, the plane mirror of the first gyrator and the second gyrator co-planar arrangement up and down, is in 45° angle with optical axis, laser
By secondary reflection with launching after reception device optical axis coincidence, transmitting and the Common-path method received are realized, improves detection essence
Degree, makes compact-sized, small volume.
2nd, optics receives and uses folding-Fresnel Lenses of reflection secondary condensation and the combining form of multiple levels of reflectors, effectively
Acceptance angle is 5 °, light transmission rate 70%, the optics acceptance rate of echo light is improved, so as to increase the spirit of IRDS
Sensitivity.
3rd, receive light pass through optical tunnel total reflection effect so that the hot spot in detector light sensation face evenly, effectively
Ground weakens the maximum irradiation intensity in light sensation face, reduces the loss to light sensation face.
4th, laser and thermopile detector can be dismantled, rational in infrastructure and repairing.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.
Fig. 1 is the structural representation of the common light path sending and receiving apparatus of the present invention for thermopile detector.
Fig. 2 is the structural representation of multiple levels of reflectors.
Fig. 3 is the structural representation of optical tunnel.
Fig. 4 is the scheme of installation of thermopile detector.
Fig. 5 is the structural representation of laser emission element.
Fig. 6 is the supporting construction schematic diagram of bay and receiving chamber.
1st, Fresnel Lenses；2nd, multiple levels of reflectors；3rd, optical tunnel；4th, the first gyrator；5th, beam-defining jaw；6th, the second corner
Device；7th, generating laser；8th, thermopile detector；9th, bay；10th, receiving chamber；11st, rotating base；12nd, both arms are supported；13、
Damp knob；14th, primary optical axis；15th, receiving chamber dividing plate；
21st, first paragraph；22nd, second segment；23rd, the 3rd section；24th, the 4th section；25th, the 5th section；26th, the 6th section；27th, the 7th
Section；28th, the 8th section；29th, the 9th section.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of common light path sending and receiving apparatus for thermopile detector, including optically focused receiving unit and Laser emission list
Member；The optically focused receiving unit contains the Fresnel Lenses 1 being arranged in order along the positive direction of primary optical axis 14, multiple levels of reflectors 2, even light
Rod 3 and thermopile detector 8, multiple levels of reflectors 2 and optical tunnel 3 are the tubular structure of both ends open, multiple levels of reflectors 2 it is interior
The inner surface of surface and optical tunnel 3 is reflecting surface, the optical axis of Fresnel Lenses 1, the axis of multiple levels of reflectors 2 and optical tunnel 3
Axis overlapped with the primary optical axis 14；The laser emission element can launch the laser beam overlapped with primary optical axis 14, and this swashs
The direction of the launch of light beam is the negative direction of primary optical axis 14, as shown in Figure 1.
In the present embodiment, Fresnel Lenses 1 is located in the arrival end of multiple levels of reflectors 2, the focus position of Fresnel Lenses 1
In the port of export of multiple levels of reflectors 2, the arrival end connection corresponding with the port of export of multiple levels of reflectors 2 of optical tunnel 3.Multiple levels of reflectors
2 arrival end and the arrival end of optical tunnel 3 are respectively positioned on Fig. 1 left side, the outlet of the port of export and optical tunnel 3 of multiple levels of reflectors 2
End is respectively positioned on Fig. 1 right side, and wherein Fresnel Lenses 1 is saturating using ppmm materials, a diameter of 80mm, focal length 150mm, Fresnel
Mirror 1 is embedded in the entrance port end of multiple levels of reflectors 2.The central punch of Fresnel Lenses 1, for inlaying the second gyrator 6.
In the present embodiment, the internal diameter of the arrival end of multiple levels of reflectors 2 is more than the internal diameter of the port of export of multiple levels of reflectors 2,
Along the positive direction of primary optical axis 14, multiple levels of reflectors 2 contains nine sections be sequentially connected, and this nine sections are respectively first paragraph 21, second segment
22nd, the 3rd section 23, the 4th section 24, the 5th section 25, the 6th section 26, the 7th section 27, the 8th section 28 and the 9th section 29.First paragraph 21
Inner surface is in cylindrical structural, second segment 22, the 3rd section 23, the 4th section 24, the 5th section 25, the 6th section 26, the 7th section 27 and
Eight section 28 of inner surface is in cylindrical machine shape structure, second segment 22, the 3rd section 23, the 4th section 24, the 5th section 25, the 6th section 26,
The internal diameter of seven section 27 and the 8th section 28 of the port of export is sequentially reduced, the design parameter such as institute of table 1 of the inner surface of multiple levels of reflectors 2
Show.
Table 1
9th section 29 is that parabola with primary optical axis 14 is that axle rotates the surface of revolution to be formed；Equation corresponding to the parabola
For：F (X)=- 0.009496X2-0.0331X+11.41；In the equation, X ∈ [0,24], unit mm.Multiple levels of reflectors 2
Structure it is as shown in Figure 2.
In the present embodiment, the inner surface of optical tunnel 3 is positive six prismsby shape, axis and the primary optical axis 14 of the positive six prismsby shape
Overlap, the port of export of optical tunnel 3 be connected with the light sensation face of thermopile detector 8, the port of export of optical tunnel 3 it is interior provided with receiving chamber every
Plate 15.The outer surface of optical tunnel 3 is cylinder, and the positive six prismsby shape is inscribed relation with the cylinder, as shown in figure 3, i.e.
Optical tunnel 3 is that the hollow tubular structure of regular hexagon is inscribed, and the inner surface of multiple levels of reflectors 2 and optical tunnel 3 is mirror surface, should
Mirror surface plates highly reflecting films, and the arrival end of optical tunnel 3 docks with the port of export gluing of multiple levels of reflectors 2, the entrance of optical tunnel 3
The external diameter at end is identical with the external diameter of the port of export of multiple levels of reflectors 2, and the port of export of receiving chamber dividing plate 15 and optical tunnel 3 matches,
Can not directly it be connect with the exit ports of optical tunnel 3 by the light sensation face of the effect thermopile detector 8 of receiving chamber dividing plate 15
Touch, its rear end can be only positioned at the front side in the light sensation face of thermopile detector 8, avoid that light sensation face is caused to wear, as shown in Figure 4.
In the present embodiment, the laser emission element contains the generating laser 7 set gradually, the first gyrator 4, limit beam
The gyrator 6 of diaphragm 5 and second, the second gyrator 6 are located at the center of Fresnel Lenses 1, the first gyrator 4 and the second gyrator 6
The laser beam that generating laser 7 is launched can be changed into the laser beam overlapped with primary optical axis 14.Generating laser 7 is used
In transmitting laser beam, the angle of the laser beam of the first gyrator 4 and the second gyrator 6 for changing the transmitting of generating laser 7.
In the present embodiment, the gyrator 4 of generating laser 7 and first is respectively positioned on outside multiple levels of reflectors 2, the second gyrator 6
In multiple levels of reflectors 2, beam-defining jaw 5 is located at the side wall of multiple levels of reflectors 2, and the arrival end of the first gyrator 4 is towards laser
The emission port of transmitter 7, the arrival end of the port of export the second gyrator 6 of direction of the first gyrator 4, the outlet of the second gyrator 6
The negative direction towards primary optical axis 14 is held, the center of Fresnel Lenses 1 is provided with centre bore, and the port of export of the second gyrator 6 is located at should
In centre bore, beam-defining jaw 5 is between the port of export of the first gyrator 4 and the arrival end of the second gyrator 6, the second gyrator
6 are located at the underface of the first gyrator 4.
Wherein the first gyrator 4 and the second gyrator 5 are cylindrical structure, a diameter of 6mm~7mm, length 10mm, interior
Planoconvex spotlight and high reflection mirror are installed by portion, as shown in Figure 5.First gyrator 4 is arranged on inside bay 9, and the second gyrator 6 is inlayed
Embedded in the center of Fresnel Lenses 1.The planoconvex spotlight of first gyrator 4 is located at close to the side of generating laser 7, its primary optical axis and hair
Penetrate laser beam center superposition, high reflection mirror and planoconvex spotlight primary optical axis are in 45° angle, the speculum vertical lower of the first gyrator 4
Open up light hole, bore 5mm.The planoconvex spotlight of second gyrator 6 is located at close to the side of Fresnel Lenses 1, its primary optical axis and phenanthrene
Nie Er lens key light overlapping of axles, high reflection mirror and planoconvex spotlight primary optical axis are in 45° angle, on the speculum of the second gyrator 6 is vertical
Fang Kaishe light holes, bore 5mm.The bore 5mm of beam-defining jaw 5, the receiving chamber 10 immediately below the light hole of the first gyrator 4
With the tapping of multiple levels of reflectors 2.
The horizontal direction laser beam that generating laser 7 is launched by 90 ° of reflections of the first gyrator 4, change into vertical by light path
Straight downward, by beam-defining jaw 5, again by 90 ° of reflections of the second gyrator 6, light path is changed into the light of horizontal exit again.
It is diffusely reflected when shoot laser runs into object under test, by Fresnel Lenses 1 and the folding of multiple levels of reflectors 2-anti-secondary poly-
After light, then the total reflection effect by light uniforming device 3, finally form uniform light spots on the light sensation face of thermopile detector 8.
In the present embodiment, the common light path sending and receiving apparatus for thermopile detector also includes the He of bay 9
Receiving chamber 10, receiving chamber 10 are the tubular structure of at least one end open, and the optically focused receiving unit is arranged in receiving chamber 10, Fei Nie
Your lens 1 are corresponding with the open end of receiving chamber 10, i.e., the Fresnel Lenses 1 of the optically focused receiving unit is located at receiving chamber in Fig. 6
In 10 left end, the thermopile detector 8 of the optically focused receiving unit is located in Fig. 6 in the right-hand member of receiving chamber 10.Primary optical axis 14 is in
Horizontality, bay 9 are fixed on outside the top of receiving chamber 10, and the gyrator 4 of generating laser 7 and first is located in bay 9.
It is divided into front and rear two parts in bay 9, baffle plate is provided between the front and rear two parts, the first gyrator 4 is positioned at transmitting
In the forward part of room 9, generating laser 7 is located in the rear part of bay 9.The baffle plate is in the corner of generating laser 7 and first
Light hole is opened up on the optical axis of device 4.The upper surface of the rear part of bay 9 can be turned on and off, sharp in order to install
Optical transmitting set 7.The rear end of receiving chamber 10 can be turned on and off, for installing thermopile detector 8.
In the present embodiment, the common light path sending and receiving apparatus for thermopile detector also includes rotating base 11
With support both arms 12, receiving chamber 10 is located at the top of rotating base 11, double by supporting between receiving chamber 10 and rotating base 11
Arm 12 is connected, and support both arms 12 are connected with receiving chamber 10 by damping knob 13, and receiving chamber 10 can be in horizontally and vertically direction
Rotate, receiving chamber 10 can rotate by axle of the straight line of the straight line of horizontal direction and vertical direction.
Specifically, rotating base 11 contains interior plectane and outer square plate, the lower end of support both arms 12 is connected admittedly with the interior plectane
Fixed, receiving chamber 10 can rotate by axle of the axis of the interior plectane, and receiving chamber 10 can also be to damp the axis of knob 13 as axle
Rotate.So realized by regulation damping knob 13 and sending and receiving apparatus is rotated upwardly and downwardly, while support both arms 12 to be fixed on
Rotary base 11, it can also carry out 360 ° of regulations of plane.
It is described above, it is only the specific embodiment of the present invention, it is impossible to the scope implemented is invented with its restriction, so it is equivalent
The displacement of component, or the equivalent variations made according to scope of patent protection of the present invention and modification, it should all still fall within what this patent was covered
Category.In addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technical scheme, technical scheme with
It can be used between technical scheme with independent assortment.
Claims (10)
1. a kind of common light path sending and receiving apparatus for thermopile detector, it is characterised in that the thermoelectric pile that is used for detects
The common light path sending and receiving apparatus of device includes optically focused receiving unit and laser emission element；
The optically focused receiving unit contains the Fresnel Lenses (1) being arranged in order along the positive direction of primary optical axis (14), multiple levels of reflectors
(2), optical tunnel (3) and thermopile detector (8), multiple levels of reflectors (2) and optical tunnel (3) are the tubular knot of both ends open
Structure, the inner surface of multiple levels of reflectors (2) and the inner surface of optical tunnel (3) are reflecting surface, the optical axis of Fresnel Lenses (1), more
The axis of level reflector (2) and the axis of optical tunnel (3) overlap with the primary optical axis (14)；
The laser emission element can launch the laser beam overlapped with primary optical axis (14), and the direction of the launch of the laser beam is key light
The negative direction of axle (14).
2. the common light path sending and receiving apparatus according to claim 1 for thermopile detector, it is characterised in that Fei Nie
You are located in the arrival end of multiple levels of reflectors (2) lens (1), and the focus of Fresnel Lenses (1) is located at going out for multiple levels of reflectors (2)
Mouth end, the arrival end connection corresponding with the port of export of multiple levels of reflectors (2) of optical tunnel (3).
3. the common light path sending and receiving apparatus according to claim 1 for thermopile detector, it is characterised in that multistage
The internal diameter of the arrival end of reflector (2) is more than the internal diameter of the port of export of multiple levels of reflectors (2), along the positive direction of primary optical axis (14),
Multiple levels of reflectors (2) contain be sequentially connected first paragraph (21), second segment (22), the 3rd section (23), the 4th section (24), the 5th section
(25), the 6th section (26), the 7th section (27), the 8th section (28) and the 9th section (29).
4. the common light path sending and receiving apparatus according to claim 3 for thermopile detector, it is characterised in that first
The inner surface of section (21) is in cylindrical structural, second segment (22), the 3rd section (23), the 4th section (24), the 5th section (25), the 6th section
(26), the inner surface of the 7th section (27) and the 8th section (28) is in cylindrical machine shape structure, second segment (22), the 3rd section of (23), the 4th
The internal diameter of the port of export of section (24), the 5th section (25), the 6th section (26), the 7th section (27) and the 8th section (28) is sequentially reduced.
5. the common light path sending and receiving apparatus according to claim 3 for thermopile detector, it is characterised in that the 9th
Section (29) is that parabola with primary optical axis (14) is that axle rotates the surface of revolution to be formed；
Equation corresponding to the parabola is：F (X)=- 0.009496X2-0.0331X+11.41；
In the equation, X ∈ [0,24].
6. the common light path sending and receiving apparatus according to claim 1 for thermopile detector, it is characterised in that even light
The inner surface of rod (3) is positive six prismsby shape, and the axis of the positive six prismsby shape overlaps with primary optical axis (14), the outlet of optical tunnel (3)
End is connected with the light sensation face of thermopile detector (8), and receiving chamber dividing plate (15) is provided with the port of export of optical tunnel (3).
7. the common light path sending and receiving apparatus according to claim 1 for thermopile detector, it is characterised in that this swashs
Optical Transmit Unit contains the generating laser (7) set gradually, the first gyrator (4), beam-defining jaw (5) and the second gyrator
(6), the second gyrator (6) is located at the center of Fresnel Lenses (1), and the first gyrator (4) and the second gyrator (6) will can swash
The laser beam that optical transmitting set (7) is launched is changed into the laser beam overlapped with primary optical axis (14).
8. the common light path sending and receiving apparatus according to claim 7 for thermopile detector, it is characterised in that laser
Transmitter (7) and the first gyrator (4) are located at multiple levels of reflectors (2) outside, and the second gyrator (6) is located in multiple levels of reflectors (2),
Beam-defining jaw (5) is located at the side wall of multiple levels of reflectors (2), and the arrival end of the first gyrator (4) is towards generating laser (7), and
The port of export of one gyrator (4) is towards the arrival end of the second gyrator (6), and the port of export of the second gyrator (6) is towards primary optical axis
(14) negative direction, the center of Fresnel Lenses (1) are provided with centre bore, and the port of export of the second gyrator (6) is located at the centre bore
Interior, beam-defining jaw (5) is located between the port of export of the first gyrator (4) and the arrival end of the second gyrator (6).
9. the common light path sending and receiving apparatus according to claim 7 for thermopile detector, it is characterised in that described
Common light path sending and receiving apparatus for thermopile detector also includes bay (9) and receiving chamber (10), and receiving chamber (10) is
At least tubular structure of one end open, the optically focused receiving unit are arranged in receiving chamber (10), Fresnel Lenses (1) and receiving chamber
(10) open end is corresponding, and primary optical axis (14) is horizontal, and bay (9) is fixed on outside the top of receiving chamber (10), swashs
Optical transmitting set (7) and the first gyrator (4) are located in bay (9).
10. the common light path sending and receiving apparatus according to claim 9 for thermopile detector, it is characterised in that institute
State also includes rotating base (11) and support both arms (12), receiving chamber for the common light path sending and receiving apparatus of thermopile detector
(10) it is located at the top of rotating base (11), by supporting both arms (12) to be connected between receiving chamber (10) and rotating base (11),
Support both arms (12) are connected with receiving chamber (10) by damping knob (13), and receiving chamber (10) can turn in horizontally and vertically direction
It is dynamic, it is divided into front and rear two parts in bay (9), baffle plate is provided between the front and rear two parts, the first gyrator (4) is located at bay
(9) forward part, generating laser (7) are located at the rear part of bay (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568700.4A CN107421647B (en) | 2017-07-13 | 2017-07-13 | Common-path transmitting and receiving device for thermopile detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710568700.4A CN107421647B (en) | 2017-07-13 | 2017-07-13 | Common-path transmitting and receiving device for thermopile detector |
Publications (2)
| Publication Number | Publication Date |
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| CN107421647A true CN107421647A (en) | 2017-12-01 |
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| CN113030911A (en) * | 2019-12-09 | 2021-06-25 | 觉芯电子(无锡)有限公司 | Laser radar system |
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