CN110058253A - Laser radar - Google Patents
Laser radar Download PDFInfo
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- CN110058253A CN110058253A CN201910349135.1A CN201910349135A CN110058253A CN 110058253 A CN110058253 A CN 110058253A CN 201910349135 A CN201910349135 A CN 201910349135A CN 110058253 A CN110058253 A CN 110058253A
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- laser
- optical fiber
- laser radar
- collimation lens
- reflection
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
- G01S7/4812—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver transmitted and received beams following a coaxial path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The present invention provides a kind of laser radars, including fiber optic collimator structure, Laser emission structure, laser pick-off structure and driving assembly, and fiber optic collimator structure includes laser source, for issuing laser；Optical fiber has flexible and is used for transmission laser；Laser coupled lens, both ends are separately connected laser source and optical fiber；Collimation lens goes out light end, and the light end setting coaxial with collimation lens out of optical fiber set on optical fiber.Laser radar provided by the invention, it is in round spot shape via the laser that optical fiber issues, dispersion angle is smaller, it is easier to collimate by collimation lens, simplifies laser alignment structure, and optical fiber has flexible, in this way, laser source and collimation lens can make full use of the space inside laser radar without coaxial arrangement, interior in a limited space to reach preferable laser alignment effect.
Description
Technical field
The invention belongs to Radar Technology fields, are to be related to a kind of laser radar more specifically.
Background technique
Laser radar has excellent performance, is widely used in robot, AGV in map structuring, avoidance, the fields such as ranging
The industries such as (logistics carrying), unmanned.Currently, pulse TOF (the flight time ranging of laser radar company production both at home and abroad
Method) range laser radar largely uses parallel axes and coaxial frame mode.In close coupled type laser radar, when laser source
When dissipating larger, structure is complicated for laser alignment, causes to be difficult to carry out laser alignment, laser alignment structure in a limited space
Design difficulty it is larger.
Summary of the invention
It is multiple to solve laser alignment structure existing in the prior art it is an object of the invention to introduce a kind of laser radar
It is miscellaneous, it is difficult in a limited space the technical issues of setting collimating effect preferable collimating structure.
To achieve the above object, the technical solution adopted by the present invention is that: provide a kind of laser radar, including including for standard
The fiber optic collimator structure of straight laser further includes the Laser emission knot for receiving and issuing the laser of the collimation lens outgoing
Structure, for receive and be transferred through external object reflection after laser laser pick-off structure and for rotating the laser
The driving assembly of emitting structural, the fiber optic collimator structure include:
Laser source, for issuing laser；
Optical fiber has flexible and is used for transmission laser；
Laser coupled lens, both ends are separately connected the laser source and the optical fiber；
Collimation lens goes out light end set on the optical fiber, and the optical fiber goes out that light end is coaxial with the collimation lens sets
It sets.
Further, the fiber optic collimator structure further includes fibre optical transmission head, and the light is inserted at the light end that goes out of the optical fiber
In fine emitting head.
Further, the fibre optical transmission head is ceramic head.
Further, the fiber optic collimator structure further includes transmitting tube, and the transmitting tube is in opaque shape, the optical fiber hair
One end that head protrudes into the transmitting tube is penetrated, the collimation lens is set to the other end of the transmitting tube.
Further, the driving component, the Laser emission structure, the fiber optic collimator structure are along the driving component
The axis direction of rotating output shaft set gradually.
Further, the Laser emission structure includes reflection tube and the first medium film for reflection laser, and institute
State collimation lens be set to the reflection tube one end, the reflection tube is L-shaped, make the reflection tube emergent light axis and the standard
The emergent light axis of straight lens is perpendicular, and the first medium film is obliquely installed and is set to the corner of the reflection tube.
Further, the laser pick-off structure includes being situated between for receiving second of the laser after external object reflects
Plasma membrane.
Further, the laser radar further includes bracket, and the first medium film and the second medium film are fixed on
The same surface of the bracket, and the first medium film and the second medium film are integrally formed.
Further, the laser pick-off structure further includes for receiving connecing for the laser after the second medium film reflects
Lens, the optical filter of setting coaxial with the receiving lens and photodetector and reception pipe are received, the reception pipe is in opaque
Shape, and the receiving lens and the photodetector are respectively arranged on the both ends of the reception pipe.
Further, the driving component includes code-disc, for driving the Laser emission structure and the code-disc to rotate
Motor and optocoupler for detecting code-disc rotation angle.
The beneficial effect of laser radar provided by the invention is: compared with prior art, laser radar of the present invention, light
Fine collimating structure includes laser source, optical fiber, laser coupled lens and collimation lens, and the laser that laser source issues passes through laser coupled
Enter optical fiber after the coupling of lens, the laser issued from optical fiber is in round spot shape, and dispersion angle is smaller, is easier to by collimation lens standard
Directly, simplify laser alignment structure, and optical fiber have it is flexible, flexible, in this way, laser source and collimation lens are without coaxially setting
It sets, can make full use of the space inside laser radar, thus reduce the occupied space of collimating structure, it is interior in a limited space
Reach lesser laser alignment effect.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structural schematic diagram of fiber optic collimator structure provided in an embodiment of the present invention；
Fig. 2 is the three-dimensional structure diagram of laser radar provided in an embodiment of the present invention；
Fig. 3 is the internal structure chart of laser radar provided in an embodiment of the present invention；
Fig. 4 is the cross-sectional view of laser radar provided in an embodiment of the present invention；
Fig. 5 is the three-dimensional structure diagram of Laser emission structure provided in an embodiment of the present invention.
Wherein, each appended drawing reference in figure:
1- driving assembly；11- motor；12- code-disc；13- optocoupler；2- Laser emission structure；21- reflection tube；211- is vertical
Pipe；212- horizontal tube；22- first medium film；3- fiber optic collimator structure；31- laser source；32- laser coupled lens；33- optical fiber；
34- fibre optical transmission head；35- transmitting tube；36- collimation lens；4- laser pick-off structure；41- second medium film；42- receiving lens；
43- reception pipe；44- optical filter；45- photodetector；5- bracket；The infrared cover of 6-；7- pedestal.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Also referring to Fig. 1 to Fig. 5, now laser radar provided by the invention is illustrated.One embodiment wherein
In, laser radar includes the fiber optic collimator structure 3 for collimation laser, further includes being emitted for receiving and issuing collimation lens 36
Laser Laser emission structure 2, for receive and be transferred through external object reflection after laser laser pick-off structure 4,
And the driving assembly 1 for rotary laser emitting structural 2.Specifically, laser is after the sending of fiber optic collimator structure 3, then passes through
Too drastic light emission structure 2 issues after reflecting, and the laser of sending returns to the laser pick-off knot of laser radar after exterior object reflects
In structure 4, and by the orientation of 4 analytical calculation exterior object of laser pick-off structure and the distance between with radar.Driving assembly 1
Laser emission structure 2 can be driven to rotate, adjust the direction of the launch of laser.Fiber optic collimator structure 3 include laser source 31, optical fiber 33,
Laser coupled lens 32 and collimation lens 36.For laser source 31 for issuing laser, laser source 31 is chosen as laser diode.Laser
The laser that source 31 issues enters in optical fiber 33 after the coupling of laser coupled lens 32, and issues circle by the light end that goes out of optical fiber 33
The angle of divergence of shape hot spot, this kind of hot spot is smaller, is easier to collimate by collimation lens 36.Optical fiber 33 has flexibility, i.e., flexible, this
Sample, the optical axis of laser source 31 and the optical axis of collimation lens 36 can be not arranged on the same straight line, and make laser source 31 and collimation lens 36
Position distribution it is more flexible, can make full use of the inner space of laser radar, in a limited space in reach preferably swash
Light collimating effect.Wherein, the both ends of laser coupled lens 32 are separately connected laser source 31 and optical fiber 33, for sending out laser source 31
Laser out is transmitted in optical fiber 33.The light end that goes out of optical fiber 33 is arranged far from laser coupled lens 32, and the light end out of optical fiber 33
Setting coaxial with collimation lens 36 is effectively collimated convenient for going out the laser that light end issues to optical fiber 33.
Laser radar provided by the invention, compared with prior art, laser radar of the present invention, fiber optic collimator structure 3 wrap
Laser source 31, optical fiber 33, laser coupled lens 32 and collimation lens 36 are included, the laser that laser source 31 issues is saturating by laser coupled
Enter optical fiber 33 after the coupling of mirror 32, the laser issued from optical fiber 33 is in round spot shape, and dispersion angle is smaller, is easier to saturating by collimating
Mirror 36 collimates, and simplifies laser alignment structure, and optical fiber 33 have it is flexible, flexible, in this way, laser source 31 and collimation lens
36, without coaxial arrangement, can flexibly assemble, can make full use of the space inside laser radar, to reduce shared by collimating structure
Space, it is interior in a limited space to reach lesser laser alignment effect.
Referring to Fig. 1, fiber optic collimator structure 3 further includes fibre optical transmission head 34 in one of the embodiments, optical fiber 33
Out in light end insertion fibre optical transmission head 34, fibre optical transmission head 34 is for fixing optical fiber 33, convenient for optical fiber 33 is assembled to following hairs
It penetrates on the other component in pipe 35 or laser radar.Fibre optical transmission head 34 is in hollow form, and optical fiber 33 is inserted into fibre optical transmission head 34
One end, laser can issue from the hollow hole of fibre optical transmission head 34.Optionally, fibre optical transmission head 34 and optical fiber 33 detachably connect
It connects, the disassembly of fibre optical transmission head 34 and optical fiber 33 is facilitated to exchange.Fibre optical transmission head 34 is chosen as ceramic head.
Fig. 3 and Fig. 4 is please referred to, fiber optic collimator structure 3 further includes transmitting tube 35, transmitting tube in one of the embodiments,
35 be in opaque shape, and fibre optical transmission head 34 protrudes into one end of transmitting tube 35, and collimation lens 36 is set to the other end of transmitting tube 35.Hair
Pipe 35 is penetrated in opaque shape, makes the laser across fibre optical transmission head 34 that can be transmitted to collimation lens 36 in transmitting tube 35, avoids
Laser in transmitting tube 35 leaks out interference radar receiving light path, guarantees the accuracy of detections of radar.More specifically, transmitting tube 35 is
Tubulose, fibre optical transmission head 34 is inserted directly into the pipe of transmitting tube 35, and collimation lens 36 can be covered in hair according to its own size
It penetrates the end of pipe 35 or is inserted into the inside of transmitting tube 35.
Optionally, the periphery of fibre optical transmission head 34 is equipped with buckle, can be arranged in the inside of transmitting tube 35.
Fig. 2 to Fig. 5 is please referred to, the present invention also provides a kind of laser radar, which includes any of the above-described embodiment
In fiber optic collimator structure 3, further include for receive and issue collimation lens 36 outgoing laser Laser emission structure 2, use
In the laser pick-off structure 4 for the laser for receiving and being transferred through after external object reflection and for rotary laser emitting structural 2
Driving assembly 1.Specifically, laser issues after reflecting using Laser emission structure 2 after the sending of fiber optic collimator structure 3,
The laser of sending is returned to after exterior object reflects in the laser pick-off structure 4 of laser radar, and is divided by laser pick-off structure 4
Analysis calculates the orientation of exterior object and the distance between with radar.Driving assembly 1 can drive Laser emission structure 2 to rotate, and adjust
The direction of the launch of whole laser.
Optionally, laser radar further includes infrared cover 6 and pedestal 7.Infrared cover 6 is translucent material, and infrared cover 6 covers at drive
The periphery of dynamic component 1 and Laser emission structure 2, can protect driving assembly 1 and Laser emission structure 2, additionally it is possible to penetrate light
The infrared transmitting of cover 6 receives, while can filter most of interference light.Laser pick-off structure 4 is partly installed in pedestal 7, infrared
Cover 6 is fixedly connected with pedestal 7.
The rotating output shaft of driving assembly 1 is longitudinally disposed in one of the embodiments, driving assembly 1, Laser emission knot
Structure 2 and fiber optic collimator structure 3 are set gradually from top to bottom, and the bottom of laser radar is made to have enough space layout laser pick-ofves
Structure 4.Optionally, the rotating output shaft of driving assembly 1 is overlapped with the output optical axis of fiber optic collimator structure 3, so that Laser emission
When structure 2 is along the rotating output shaft rotation of driving assembly 1, faced always with fiber optic collimator structure 3, reception optical fiber collimating structure
3 laser issued.
Fig. 3 and Fig. 4 is please referred to, Laser emission structure 2 includes reflection tube 21 and is used for anti-in one of the embodiments,
The first medium film 22 of laser is penetrated, reflection tube 21 is L-shaped, and collimation lens 36 is set to one end of reflection tube 21, makes reflection tube 21
Emergent light axis and collimation lens 36 emergent light axis it is perpendicular, first medium film 22 be obliquely installed and be set to reflection tube 21 angle
Portion.The light that collimation lens 36 issues enters in 21 one end of reflection tube, and by the reflection of first medium film 22, light is from reflection tube
21 other end issues, and passes through infrared cover 6 to external object.More specifically, reflection tube 21 includes vertical pipe 211 and horizontal tube
212, the emergent light axis of collimation lens 36 is identical as the length direction of vertical pipe 211, plane where first medium film 22 and perpendicular
The length direction of straight tube 211 and horizontal tube 212 is in 45 degree of angle settings, so that the light that collimation lens 36 issues enters vertical pipe
After 211, by the reflection of first medium film 22, the direction of propagation of light is turned over and is turn 90 degrees, to be issued towards horizontal direction.Vertically
The junction of pipe 211 and horizontal tube 212 have notch, first medium film 22 be set to the incision, make first medium film 22 towards
21 side of reflection tube becomes the side wall of connection vertical pipe 211 and horizontal tube 212.The axis of the rotating output shaft of driving assembly 1
It is identical as the length direction of vertical pipe 211, in this way, when driving assembly 1 drives reflection tube 21 and first medium film 22 to rotate, reflection
The beam projecting direction of pipe 21 can also in the horizontal plane 360 degree rotation, to detect the barrier of all directions.Optionally, it collimates
Lens 36 are set in reflection tube 21 or the setting of the end of face reflection tube 21.
Optionally, laser radar further includes bracket 5, and bracket 5 is used for fixation reflex pipe 21 and first medium film 22.More specifically
Ground, the rotating output shaft of driving assembly 1, the i.e. rotating output shaft of motor 11 protrude into bracket 5, and are fixedly connected with bracket 5, instead
It penetrates pipe 21 and first medium film 22 is both secured on bracket 5, in this way, driving assembly 1 drives entire Laser emission knot by bracket 5
Structure 2 rotates.
Fig. 3 to Fig. 5 is please referred to, laser pick-off structure 4 includes passing through foreign objects for receiving in one of the embodiments,
The second medium film 41 of laser after body reflection.In laser to external object after the sending of Laser emission structure 2, and by outer
After the reflection of boundary's object, the laser radar is returned to, second medium film 41 receives laser, and by laser reflection to following photodetectors
45, external object is calculated with a distance from the laser radar according to the flight two-way time of laser.Second medium film 41 and first
The effect of deielectric-coating 22 is identical, is the path for changing laser, conveniently adapts to the internal structure of laser radar.
Optionally, first medium film 22 and second medium film 41 are set on same plane, and first medium film 22 and second
Deielectric-coating 41 is integrally formed.The material of first medium film 22 and second medium film 41 also can be identical.First medium film 22 and second
The deielectric-coating of the composition monolith of deielectric-coating 41.In this embodiment, first medium film 22 is located at centre, 41 ring of second medium film
Set on the periphery of first medium film 22, so that fiber optic collimator structure 3 is located at the centre of laser radar, it is convenient for fiber optic collimator knot
The layout of structure 3 and Laser emission structure 2.
Optionally, using glass, plastic or other material as substrate, first medium film 22 and the plating of second medium film 41 are set to the substrate
Surface, have the function of reflection light.First medium film 22, second medium film 41 can be Gold plated Layer, silver coating, aluminium coated etc.
The biggish metal layer of reflectivity.
Fig. 3 to Fig. 5 is please referred to, laser pick-off structure 4 further includes for receiving second medium in one of the embodiments,
Film 41 reflect after the receiving lens 42 of laser, the optical filter 44 of setting coaxial with receiving lens 42 and photodetector 45 and connect
Closed tube 43, reception pipe 43 is in opaque shape, and receiving lens 42 and photodetector 45 are respectively arranged on the both ends of reception pipe 43.It receives
Pipe 43 can block extraneous light, prevent extraneous light from interfering, and guarantee the accuracy of 45 testing result of photodetector.Optical filter 44
Effect is the light of filtering jammr band, improves the accuracy of testing result.
The center that transmitting tube 35 passes through receiving lens 42 in one of the embodiments, is arranged, and makes to emit optical path and reception
Optical path can be vertically arranged, and be longitudinally arranged in laser radar.More specifically, receiving lens 42 are fixed on the one of reception pipe 43
End is coaxially disposed receiving lens 42 and reception pipe 43, and can block the end of reception pipe 43, in this way, in reception pipe 43
Light can only be entered by receiving lens 42.
Optionally, the optical axis across receiving lens 42, reception pipe 43, optical filter 44 and photodetector 45 is longitudinally disposed, with
The axial direction of the rotating output shaft of driving assembly 1 is identical.Fiber optic collimator structure 3 can be set in reception pipe 43.Reception pipe 43, optical filter
44 and photodetector 45 be securable in pedestal 7.
Fig. 3 and Fig. 4 is please referred to, driving assembly 1 includes code-disc 12, for driving laser to send out in one of the embodiments,
It penetrates the motor 11 of structure 2 and the rotation of code-disc 12 and rotates the optocoupler 13 of angle for detecting code-disc 12.Laser emission structure 2
It is fixedly connected with the output shaft of motor 11 with code-disc 12.Optocoupler 13 is vertically arranged, perpendicular with the plane where code-disc 12.Code
There is origin labeling section, when origin labeling section is faced with optocoupler 13, optocoupler 13 can recognize that Laser emission knot on disk 12
Structure 2 and code-disc 12 are in initial position；When Laser emission structure 2 rotates, optocoupler 13 cooperates the counting hole on code-disc 12 that can sentence
The current direction of the launch of disconnected Laser emission structure 2.The structure of optocoupler 13 and code-disc 12 being capable of auxiliary laser radar identification motor 11
Rotate angle, and then the orientation of cognitive disorders object.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. laser radar, which is characterized in that further include for receiving and issuing including the fiber optic collimator structure for collimation laser
The Laser emission structure of the laser of collimation lens outgoing, for receiving and being transferred through the laser after external object reflection
Laser pick-off structure and driving assembly for rotating the Laser emission structure, the fiber optic collimator structure include:
Laser source, for issuing laser；
Optical fiber has flexible and is used for transmission laser；
Laser coupled lens, both ends are separately connected the laser source and the optical fiber；
Collimation lens goes out light end, and the light end setting coaxial with the collimation lens out of the optical fiber set on the optical fiber.
2. laser radar as described in claim 1, it is characterised in that: the fiber optic collimator structure further includes fibre optical transmission head,
The light end that goes out of the optical fiber is inserted into the fibre optical transmission head.
3. laser radar as claimed in claim 2, it is characterised in that: the fibre optical transmission head is ceramic head.
4. laser radar as claimed in claim 2, it is characterised in that: the fiber optic collimator structure further includes transmitting tube, described
Transmitting tube is in opaque shape, and the fibre optical transmission head protrudes into one end of the transmitting tube, and the collimation lens is set to the transmitting
The other end of pipe.
5. laser radar as described in claim 1, it is characterised in that: the driving component, the Laser emission structure, described
Fiber optic collimator structure is set gradually along the axis direction of the rotating output shaft of the driving component.
6. laser radar as described in claim 1, it is characterised in that: the Laser emission structure includes reflection tube and is used for
The first medium film of reflection laser, and the collimation lens is set to one end of the reflection tube, the reflection tube is L-shaped, makes institute
The emergent light axis of the emergent light axis and the collimation lens of stating reflection tube is perpendicular, and the first medium film is obliquely installed and is set to
The corner of the reflection tube.
7. laser radar as claimed in claim 6, it is characterised in that: the laser pick-off structure includes for receiving by outer
The second medium film of laser after the reflection of boundary's object.
8. laser radar as claimed in claim 7, it is characterised in that: the laser radar further includes bracket, and described first is situated between
Plasma membrane and the second medium film are fixed on the same surface of the bracket, and the first medium film and the second medium film
It is integrally formed.
9. laser radar as claimed in claim 7, it is characterised in that: the laser pick-off structure further includes described for receiving
Second medium film reflection after the receiving lens of laser, the optical filter of setting coaxial with the receiving lens and photodetector and
Reception pipe, the reception pipe is in opaque shape, and the receiving lens and the photodetector are respectively arranged on the reception pipe
Both ends.
10. laser radar as described in claim 1, it is characterised in that: the driving component includes code-disc, described for driving
The motor that Laser emission structure and the code-disc rotate and the optocoupler for detecting the code-disc rotation angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349135.1A CN110058253A (en) | 2019-04-28 | 2019-04-28 | Laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349135.1A CN110058253A (en) | 2019-04-28 | 2019-04-28 | Laser radar |
Publications (1)
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