CN109061657A - A kind of solid state light emitter of laser radar and a kind of laser radar - Google Patents
A kind of solid state light emitter of laser radar and a kind of laser radar Download PDFInfo
- Publication number
- CN109061657A CN109061657A CN201810918602.3A CN201810918602A CN109061657A CN 109061657 A CN109061657 A CN 109061657A CN 201810918602 A CN201810918602 A CN 201810918602A CN 109061657 A CN109061657 A CN 109061657A
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- Prior art keywords
- light emitter
- optical
- solid state
- state light
- transmitting set
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- 239000007787 solid Substances 0.000 title claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims abstract description 104
- 239000013307 optical fiber Substances 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 3
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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 relates to radar installations fields, solid state light emitter and a kind of laser radar more particularly to a kind of laser radar, the solid state light emitter includes three with light emitter and optical fiber, it further include at least one image intensifer, the optical transmitting set is by fused fiber splice on image intensifer, and the optical signal that structure has angle is launched outward by optical fiber, image intensifer, the optical transmitting set emits optical signal to different angle centered on solid state light emitter.360 ° of scanning range is covered by the optical transmitting set of different wave length, and the mode of synchronous working can be used, and is suitable for the fields such as automatic Pilot and 3D scanning.
Description
Technical field
The present invention relates to radar installations fields, and in particular to a kind of solid state light emitter of laser radar and a kind of laser thunder
It reaches.
Background technique
Radar is to detect the characteristic quantities such as the position of target, speed to emit laser beam, its working principle is that first to mesh
Emission detection laser beam is marked, the reflected signal of slave target received is compared with transmitting signal then, is fitted
After processing, so that it may obtain target for information about, such as target range, orientation, height, speed, posture, even shape etc. are joined
Number.
At present major part laser radar use mechanical scanning mode, light source while emitting laser with mechanical device into
Row 360 degree rotation.Long-term work can cause the abrasion of mechanical structure, lead to the reduction of laser radar service life.
For existing laser radar, if being equipped with the optical transmitting set of multiple and different wavelength, need to carry out chip different
Design, for example, filtering and control etc., wavelength is more, and the requirement for chip is higher, and the prior art be unable to satisfy it is above-mentioned
It is required that.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, a kind of laser radar is provided
Solid state light emitter and a kind of laser radar solve the problems, such as that existing laser radar is needed through mechanical rotation.
To solve this technical problem, the present invention provides a kind of solid state light emitter of laser radar, and the solid state light emitter includes three
A further includes at least one image intensifer with light emitter and optical fiber, and the optical transmitting set passes through fused fiber splice in light amplification
On device, and the optical signal that structure has angle is launched outward by optical fiber, image intensifer, the optical transmitting set is with solid state light emitter
Center emits optical signal to different angle.
Wherein, preferred version is: the optical signal of adjacent transmission overlaps.
Wherein, preferred version is: each optical transmitting set launches outward optical signal and is constituted by optical fiber, image intensifer
Angle it is identical.
Wherein, preferred version is: the optical transmitting set emits optical signal to different angle centered on a center of circle.
Wherein, preferred version is: the wavelength of the optical transmitting set is 1550 ± 15nm.
Wherein, preferred version is: the optical fiber is doped with er element and ytterbium element.
Wherein, preferred version is: the image intensifer is equipped with one, and the optical transmitting set is all set on image intensifer；
Alternatively, the image intensifer is consistent with the quantity of optical transmitting set, the optical transmitting set is separately positioned on corresponding image intensifer.
Wherein, preferred version is: the optical transmitting set is seed source.
The present invention also provides a kind of laser radar, the laser radar includes solid state light emitter as described above, the laser
Radar further includes optical receiver and processor, and the solid state light emitter emits optical signal, light is transmitted to after the reflection of external object
Receiver, the optical receiver transmit optical signals into processor, and the processor forms parameter information according to optical signal.
Wherein, preferred version is: the laser radar includes a pedestal for being equipped with an annular side, the solid state light emitter
Each optical transmitting set is arranged in the annular side of pedestal, and launches outward optical signal.
The beneficial effects of the present invention are compared with prior art, the present invention is by designing the solid-state of laser radar a kind of
Light source and a kind of laser radar, 360 ° of scanning range is covered by the optical transmitting set of different wave length, and synchronization can be used
The mode of work is suitable for the fields such as automatic Pilot and 3D scanning；In addition, the wavelength of the optical transmitting set is in 1550 ± 15nm model
In enclosing, frequency is high, and has eye-safe characteristic, higher to the damage threshold of human eye.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the schematic diagram of solid state light emitter of the present invention；
Fig. 2 is the schematic diagram that solid state light emitter of the present invention forms 360 ° of scanning ranges；
Fig. 3 is the structural block diagram of laser radar of the present invention.
Specific embodiment
Now in conjunction with attached drawing, elaborate to presently preferred embodiments of the present invention.
As depicted in figs. 1 and 2, the present invention provides a kind of preferred embodiment of the solid state light emitter of laser radar.
Specifically, the solid state light emitter 10 of a kind of laser radar, the solid state light emitter 10 include three with 1 He of light emitter
Optical fiber, further includes at least one image intensifer 2, and the optical transmitting set 1 on image intensifer 2, is preferably provided with by fused fiber splice
The optical signal that structure has angle, the optical transmitting set are launched outward in the front end of image intensifer 2, and by optical fiber, image intensifer 2
1 centered on solid state light emitter, emits optical signal to different angle, and, it is preferable that the optical transmitting set 1 is with solid-state
The center of circle of light source 10 emits optical signal as starting point, towards different angle；Alternatively, the optical transmitting set 1 is not with same center of circle work
For starting point, but using different points as starting point.No matter which kind of situation, the optical signal of the adjacent transmission can be overlapped and set
It sets, the scanning range of 360 ° of covering.
For example, 2 left side of image intensifer of Fig. 1 is front end, the right is rear end, and the optical transmitting set 1 is seed source, and wavelength exists
Within c-band range, continuous pulsed optical signals can be generated, the image intensifer 2 is for amplifying optical signal.
Wherein, the optical transmitting set 1 launches outward the angle difference that optical signal is constituted, phase by optical fiber, image intensifer
The optical signal of neighbour's transmitting overlaps, and intersects, can also cover 360 ° of scanning range.
A preferred embodiment is taken, with reference to Fig. 2, all optical transmitting sets 1 launch outward optical signal by optical fiber, image intensifer
The angle constituted immobilizes, and angle is identical, and the mutual angle of the optical signal of formation is identical, for example, described
Optical transmitting set 1 set there are four when, the mutual angle of the optical transmitting set 1 is 90 degree, and the optical signal of formation is between each other
90 degree；The optical transmitting set 1 set there are five when, the mutual angle of the optical transmitting set 1 be 72 degree, the optical signal phase of formation
It is in 72 degree between mutually.To cover 360 ° of scanning range by different operating wavelength.The optical transmitting set 1 works asynchronously, hair
Optical signal is projected, when optical signal is after image intensifer 2, acquisition gain amplification, optical power increases at this time.It is worth mentioning that institute
Optical transmitting set more than 1 is stated, the signal light of sending is more, and the point scanned in this way is more, and the information content fed back is bigger,
Solid state light emitter issues the optical signal of more different wave lengths, and it is more accurate for the detection accuracy of object that the increase of scanning element is meant that
It is more comprehensive, for mobile unit, it is of great significance.
Wherein, the wavelength of the optical transmitting set 1 is 1550 ± 15nm, and the repetition rate of the optical signal of the wave band can reach
Megahertz, and water absorption coefficient with higher, when optical signal radiation is to human eye, energy higher to the damage threshold of human eye
Human eye is enough protected, people is avoided to come to harm.When optical transmitting set more than 1, it is meant that the optical signal of more different wave lengths is issued, and originally
In embodiment, the chip that the optical transmitting set 1 uses can satisfy the requirement of different wave length, such as filtering and control etc.,
The abnormal conditions such as signal cross will not occur, so that the signal accuracy of feedback is high.
In addition, the optical fiber doped with er element and ytterbium element, carries out the transmission of optical signal, realize optical signal 1550 ±
Gain is amplified within the scope of 15nm.
Preferably, the image intensifer 2 is equipped with one, and the optical transmitting set 1 is all set on same image intensifer 2, i.e.,
It is that optical transmitting set 1 is distinguished welding to project on the optical path input terminal of image intensifer 2, then from the lens combination light path output of image intensifer 2,
Material can be saved, the gain amplification of optical signal is also able to achieve.Alternatively, the quantity phase one of the image intensifer 2 and optical receiver 1
It causes, the optical transmitting set 1 is separately positioned on corresponding image intensifer 2, and the image intensifer 2 is respectively that optical transmitting set 1 is realized
Gain amplification.
As shown in figure 3, the present invention provides a kind of preferred embodiment of laser radar.
Specifically, with reference to Fig. 3, a kind of laser radar, the laser radar includes solid state light emitter 10 as described above, described
Laser radar further includes optical receiver 30 and processor 40, and the solid state light emitter 10 emits optical signal, through the anti-of external object 20
It is transmitted to optical receiver 30 after penetrating, the optical receiver 30 transmits optical signals into processor 40, and the processor 40 is according to light
Signal forms parameter information, such as obtain the size parameter of external object 20, distance parameter etc., facilitate user and judge,
Has wide application prospect in the fields such as automatic Pilot and 3D scanning.Wherein, the optical receiver 30 can be one, receive anti-
Penetrate signal；The optical receiver 30 can also receive respectively reflection signal to be multiple and consistent with the quantity of optical transmitting set 1.
Further, the laser radar includes a pedestal for being equipped with an annular side, each light of the solid state light emitter
Transmitter 1 is arranged in the annular side of pedestal, and launches outward optical signal, at this point, the pedestal plays branch to optical transmitting set 1
Support effect.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
Any modification made all within the spirits and principles of the present invention, equivalent replacement, improve etc., it should be included in guarantor of the invention
It protects in range.
Claims (10)
1. a kind of solid state light emitter of laser radar, it is characterised in that: the solid state light emitter includes three with light emitter and light
Fibre further includes at least one image intensifer, and the optical transmitting set passes through fused fiber splice on image intensifer, and passes through optical fiber, light
Amplifier launches outward the optical signal that structure has angle, and the optical transmitting set emits centered on solid state light emitter to different angle
Optical signal.
2. solid state light emitter according to claim 1, it is characterised in that: the optical signal of adjacent transmission overlaps.
3. solid state light emitter according to claim 1 or 2, it is characterised in that: each optical transmitting set is put by optical fiber, light
It is identical that big device launches outward the angle that optical signal is constituted.
4. solid state light emitter according to claim 3, it is characterised in that: the optical transmitting set is not to centered on a center of circle
Emit optical signal with angle.
5. solid state light emitter according to claim 1, it is characterised in that: the wavelength of the optical transmitting set is 1550 ± 15nm.
6. solid state light emitter according to claim 1, it is characterised in that: the optical fiber is doped with er element and ytterbium element.
7. solid state light emitter according to claim 1, it is characterised in that: the image intensifer is equipped with one, the light emitting
Device is all set on image intensifer；Alternatively, the image intensifer is consistent with the quantity of optical transmitting set, the optical transmitting set is set respectively
It sets on corresponding image intensifer.
8. solid state light emitter according to claim 1, it is characterised in that: the optical transmitting set is seed source.
9. a kind of laser radar, the laser radar includes solid state light emitter as described in any of the claims 1 to 8, and feature exists
In: the laser radar further includes optical receiver and processor, and the solid state light emitter emits optical signal, the reflection through external object
After be transmitted to optical receiver, the optical receiver transmits optical signals into processor, and the processor forms according to optical signal and joins
Number information.
10. laser radar according to claim 9, it is characterised in that: the laser radar includes one equipped with an annular side
Each optical transmitting set of the pedestal in face, the solid state light emitter is arranged in the annular side of pedestal, and launches outward optical signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918602.3A CN109061657A (en) | 2018-08-13 | 2018-08-13 | A kind of solid state light emitter of laser radar and a kind of laser radar |
| PCT/CN2018/110050 WO2020034379A1 (en) | 2018-08-13 | 2018-10-12 | Solid-state light source of laser radar, and laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810918602.3A CN109061657A (en) | 2018-08-13 | 2018-08-13 | A kind of solid state light emitter of laser radar and a kind of laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109061657A true CN109061657A (en) | 2018-12-21 |
Family
ID=64678261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810918602.3A Pending CN109061657A (en) | 2018-08-13 | 2018-08-13 | A kind of solid state light emitter of laser radar and a kind of laser radar |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109061657A (en) |
| WO (1) | WO2020034379A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110244317A (en) * | 2019-06-03 | 2019-09-17 | 深圳市速腾聚创科技有限公司 | Laser radar system |
| CN112180398A (en) * | 2020-09-29 | 2021-01-05 | 广州大学 | Multi-line laser radar and control method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020034379A1 (en) | 2020-02-20 |
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| CB02 | Change of applicant information |
Address after: No.35 Cuijing Road, Pingshan District, Shenzhen City, Guangdong Province Applicant after: Ona Technology (Shenzhen) Group Co.,Ltd. Address before: No.35 Cuijing Road, Pingshan District, Shenzhen City, Guangdong Province Applicant before: O-NET COMMUNICATIONS (SHENZHEN) Ltd. |
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Application publication date: 20181221 |
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| RJ01 | Rejection of invention patent application after publication |