CN106646819A - Single-hole laser focusing realization device and method - Google Patents
Single-hole laser focusing realization device and method Download PDFInfo
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- CN106646819A CN106646819A CN201611095691.3A CN201611095691A CN106646819A CN 106646819 A CN106646819 A CN 106646819A CN 201611095691 A CN201611095691 A CN 201611095691A CN 106646819 A CN106646819 A CN 106646819A
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- laser
- reflected light
- optical signal
- signal
- light signal
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a single-hole laser focusing realization device and method. A first port of a light circulator is used to receive an optical signal emitted by a laser emitter; a second port of the light circulator is used to emit the optical signal emitted by the laser emitter, and receive a reflected light signal reflected by an object; a third port of the light circulator is used to output the reflected light signal to a laser receiver, and the laser receiver receives and analyzes the reflected light signal; and a controller obtains the signal analyzed by the laser receiver, and staggers time in which the laser emitter emits the optical signal from time in which the laser receiver receives the reflected light signal. The device and method have the advantages that the structure is simple, one optical circulator is additionally arranged to change a double-hole window of laser focusing into a single-whole window, the amount of holes and windows in the structural appearance is reduced, the structural appearance is more beautiful, the structure is more compact and the device is smaller.
Description
Technical field
The technical field the present invention relates to a kind of laser is focused, especially to be related to a kind of single hole laser focusing realize device and
Method and technology field.
Background technology
The laser focusing device of existing scheme generally includes a transmitting terminal and a receiving terminal.The transmitting terminal is used to send light
Line, the receiving terminal is used to receive light, needs to design two opening, a launch hole, another reception in structure
Hole, also, two usual volumes that open a window are larger, therefore, affect overall structure aesthetics and using effect.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided device is realized in a kind of single hole laser focusing, and its solution is existing
The larger technical problem of two windowing volumes of technology.Become laser focusing diplopore windowing by increasing by three ports light rings
For single hole windowing, constructional appearance perforate windowing quantity is reduced, make constructional appearance more attractive in appearance, more compact structure, smallerization.
The object of the invention to solve the technical problems is realized using following technical measures.According to one kind proposed by the present invention
Device is realized in the focusing of single hole laser, including:One generating laser, a laser pickoff, a controller, an optical circulator, it is described
Optical circulator further includes a first port, a second port, one the 3rd port.The generating laser, launches optical signal, described
Laser pickoff, the reflected light signal that reception is reflected from object simultaneously parses the reflected light signal, the generating laser
It is connected the controller respectively with the side of the laser pickoff, the generating laser is another with the laser pickoff
Side connects respectively the optical circulator；The first port of the optical circulator, the laser received from transmission channel transmission is sent out
The optical signal of emitter transmitting；The second port of the optical circulator, sends the optical signal of the laser transmitter projects, and receives
The reflected light signal；3rd port of the optical circulator, exports the reflected light signal, and the reflected light is believed
Number transmit to the laser pickoff from receiving channel；The controller, controls the laser transmitter projects optical signal and takes
The signal that parsed of the laser pickoff, and by the time of the laser transmitter projects optical signal and the laser pick-off
The time of the device reception reflected light signal carries out process of staggering.
Further, very first time value, the institute of laser transmitter projects optical signal described in the controller real time record
One second time value that laser pickoff receives the reflected light signal is stated, and when comparing the very first time value with described second
Between the time difference that is worth, and control the laser transmitter projects optical signal and the laser pick-off according to the time difference
Device receives the reflected light signal.
Further, the controller is calculated between the object and described device according to the time difference and the light velocity
Distance, adjust described device focal length.
Further, after the laser transmitter projects optical signal, within the specific time, will not light described in repeat its transmission
Signal.
The object of the invention to solve the technical problems can also employ the following technical solutions further to realize.Including such as
Lower step：
One laser transmitter projects optical signal is controlled by a controller；Received by a first port of an optical circulator
From the optical signal of the laser transmitter projects of transmission channel transmission；Institute is sent by a second port of the optical circulator
The optical signal of laser transmitter projects is stated, and receives the reflected light signal reflected from object；By the optical circulator
One the 3rd port exports the reflected light signal, and the reflected light signal is transmitted to a laser pickoff from receiving channel；
The laser pickoff is set to receive the reflected light signal and parse the reflected light signal by the controller；And pass through
The controller obtains the signal that the laser pickoff has been parsed, and by the time of the laser transmitter projects optical signal with
The laser pickoff receives the time of the reflected light signal carries out process of staggering.
Further, by a very first time of laser transmitter projects optical signal described in the controller real time record
Value, the laser pickoff receive one second time value of the reflected light signal, and compare the very first time value with it is described
The time difference of the second time value, and control the laser transmitter projects optical signal according to the time difference and described swash
Optical receiver receives the reflected light signal.
Further, by the controller according to the time difference and the light velocity, the object and described device are calculated
The distance between, adjust the focal length of described device.
Further, after the laser transmitter projects optical signal, within the specific time, will not repeat its transmission institute
State optical signal.
By above-mentioned technical proposal, the single hole laser focusing of the present invention realize device and method at least have following advantages and
Beneficial effect：Simple structure, makes laser focusing diplopore windowing be changed into single hole windowing by increasing by three ports light rings, subtracts
Few constructional appearance perforate windowing quantity, makes constructional appearance more attractive in appearance, more compact structure, smallerization.And the three port rings of light
Shape device, the incident optical signal of the first port can only be exported from the second port, and the incident light letter of the second port
Number can only export from the 3rd port, and optical signal is incident from either port, can be according to circumferential direction from lower Single port
Exported with the loss of very little, so as to the light path of the first port and the second port is combined, and described first
Port is mutually isolated with the 3rd port, greatly reduces and interferes, and focusing implementation method is simple and reliable.
In sum, the present invention is a significant progress in technology, and with obvious actively technique effect, becomes one new
Grain husk, progressive, practical new invention.
Described above only to the general introduction of technical solution of the present invention, in order to better understand the technology handss of the present invention
Section, and can be practiced according to the content of description, and in order to allow above and other purpose, feature and the advantage of the present invention
Can become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Description of the drawings
Fig. 1 is the overall structure diagram that device is realized in the single hole laser focusing of the present invention.
Fig. 2 is the internal port structural representation of the optical circulator of the present invention.
The step of Fig. 3 is the single hole laser focusing implementation method of present invention flow chart.
Fig. 4 is the action schematic diagram of the generating laser with laser pickoff of the present invention.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, according to single hole laser proposed by the present invention focusing device and method its specific embodiment, knot are realized
Structure, feature and its effect, describe in detail as after.
Fig. 1 is refer to, it is the overall structure diagram that device is realized in the single hole laser focusing of the present invention.In Fig. 1, control
The control transmitting optical signal of generating laser 120 of device 110, a first port of optical circulator 130 is received to be transmitted from transmission channel 140
The generating laser 120 transmitting optical signal；One second port of optical circulator 130 sends the generating laser 120
The optical signal of transmitting is to an object 150, and receives the reflected light signal reflected from the object 150；Optical circulator 130
One the 3rd port exports the reflected light signal, and the reflected light signal is transmitted to a laser pick-off from receiving channel 160
Device 170；The laser pickoff 170 receives the reflected light signal and parses the reflected light signal.
Fig. 2 is refer to, it is the internal port structural representation of the optical circulator of the present invention.In fig. 2, optical circulator
130 internal ports include first port 131, the port 133 of second port 132 and the 3rd.First port 131 is received from transmission channel
The optical signal of the laser transmitter projects of transmission；Second port 132 sends the optical signal of the laser transmitter projects, and
Receive the reflected light signal；3rd port 133 exports the reflected light signal, and by the reflected light signal from receiving channel
Transmit to the laser pickoff.
Fig. 3 is refer to, it is the step of being the single hole laser focusing implementation method of present invention flow chart.
Step S310：One laser transmitter projects optical signal is controlled by a controller.
Step S320：The optical signal of the laser transmitter projects is received by a first port of an optical circulator.
Step S330：The optical signal is sent by a second port of the optical circulator, and is received from object reflection
The reflected light signal returned.
Step S340：The reflected light signal is exported to a laser pick-off by one the 3rd port of the optical circulator
Device.
Step S350：The reflected light signal is received by the laser pickoff and the reflected light signal is parsed, and
By the signal return for having parsed to the controller.The signal that the laser pickoff has been parsed is obtained by the controller,
And enter the time that the time of the laser transmitter projects optical signal receives the reflected light signal with the laser pickoff
Capable process of staggering.
Further, by a very first time of laser transmitter projects optical signal described in the controller real time record
Value, the laser pickoff receive one second time value of the reflected light signal, and compare the very first time value with it is described
The time difference of the second time value, and control the laser transmitter projects optical signal according to the time difference and described swash
Optical receiver receives the reflected light signal.
Further, by the controller according to the time difference and the light velocity, the object and described device are calculated
The distance between.Time difference is multiplied by by the light velocity and calculates object distance L, i.e. L=lighies velocity * time differences.Adjust according to this
Camera focal lengths.
Further, after the laser transmitter projects optical signal, within the specific time, will not repeat its transmission institute
State optical signal.After the laser transmitter projects optical signal, the laser pickoff is not received more than expected special time
The reflected light signal, then the generating laser repeat transmitting optical signal.
Fig. 4 is refer to, it is the action schematic diagram of the generating laser with laser pickoff of the present invention.Controller sends finger
Order makes laser transmitter projects optical signal, and by the first port of optical circulator the optical signal of laser transmitter projects, light are received
The second port of circulator sends the optical signal of the laser transmitter projects to object, then receive from object reflect it is anti-
Optical signal is penetrated, to laser pickoff, laser pickoff receives reflected light letter to the 3rd port output reflection optical signal of optical circulator
Number and parse reflected light signal, controller receives the time difference of time according to laser transmitter projects time and laser pickoff
Calculate object distance, and then adjust camera focal lengths, in the diagram, transverse axis T express time section, the longitudinal axis represent generating laser and
In the relevant action corresponding to each time period, in the T1 time periods, the action of laser transmitter projects optical signal is laser pickoff
Y1, wait for a period of time T2, and in the T3 time periods, it is Y2 that laser pickoff receives the action of reflected light signal, works as laser pick-off
After the T3 time periods receive reflected light signal, then in the T4 time periods, generating laser repeats the dynamic of transmitting optical signal to device
Make.
The above, is only presently preferred embodiments of the present invention, and any pro forma restriction is not made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when making a little change or modification using the technology contents of the disclosure above
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
Any simple modification, equivalent variations and the modification made to above example, still falls within the range of technical solution of the present invention.
Claims (8)
1. device is realized in a kind of single hole laser focusing, including：One generating laser, a laser pickoff, a controller, it is described to swash
Optical transmitting set launches optical signal, and the reflected light signal that the laser pickoff reception is reflected from object simultaneously parses the reflection
Optical signal, the generating laser is connected respectively the controller, the generating laser with the side of the laser pickoff
It is connected an optical circulator respectively with the opposite side of the laser pickoff, it is characterised in that
The optical circulator, including：
One first port, receives the optical signal of the laser transmitter projects from transmission channel transmission；
One second port, sends the optical signal of the laser transmitter projects, and receives the reflected light signal；
One the 3rd port, exports the reflected light signal, and the reflected light signal is transmitted to the laser from receiving channel
Receptor；
The controller, controls the laser transmitter projects optical signal and obtains the signal that the laser pickoff has been parsed,
And enter the time that the time of the laser transmitter projects optical signal receives the reflected light signal with the laser pickoff
Capable process of staggering.
2. device is realized in single hole laser focusing according to claim 1, it is characterised in that further included：The controller reality
One very first time value of laser transmitter projects optical signal described in Shi Jilu, the laser pickoff receive the reflected light signal
One second time value, and compare the time difference of very first time value and second time value, and according to it is described when
Between difference control the laser transmitter projects optical signal and the laser pickoff and receive the reflected light signal.
3. device is realized in single hole laser focusing according to claim 2, it is characterised in that further included：The controller according to
According to the time difference and the light velocity, the distance between the object and described device are calculated, adjust the focal length of described device.
4. device is realized in single hole laser focusing according to claim 1, it is characterised in that further included：The Laser emission
After device transmitting optical signal, within the specific time, will not optical signal described in repeat its transmission.
5. a kind of single hole laser is focused implementation method, it is characterised in that included：
One laser transmitter projects optical signal is controlled by a controller；
The optical signal of the laser transmitter projects from transmission channel transmission is received by a first port of an optical circulator；
The optical signal of the laser transmitter projects is sent by a second port of the optical circulator, and is received anti-from object
It is emitted back towards the reflected light signal for coming；
The reflected light signal is exported by one the 3rd port of the optical circulator, and the reflected light signal is logical from receiving
Transmit to a laser pickoff in road；
The laser pickoff is set to receive the reflected light signal and parse the reflected light signal by the controller；And
The signal that the laser pickoff has been parsed is obtained by the controller, and by the laser transmitter projects optical signal
Time and the laser pickoff receive time of the reflected light signal and carry out process of staggering.
6. single hole laser according to claim 5 is focused implementation method, it is characterised in that further included：
By very first time value, the laser pick-off of laser transmitter projects optical signal described in the controller real time record
Device receives one second time value of the reflected light signal, and the time for comparing the very first time value and second time value
Difference, and control described in the laser transmitter projects optical signal and laser pickoff reception according to the time difference
Reflected light signal.
7. single hole laser according to claim 6 is focused implementation method, it is characterised in that further included：
By the controller according to the time difference and the light velocity, the distance between the object and described device are calculated, adjusted
The focal length of whole described device.
8. single hole laser according to claim 5 is focused implementation method, it is characterised in that further included：
After the laser transmitter projects optical signal, within the specific time, will not optical signal described in repeat its transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611095691.3A CN106646819A (en) | 2016-12-02 | 2016-12-02 | Single-hole laser focusing realization device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611095691.3A CN106646819A (en) | 2016-12-02 | 2016-12-02 | Single-hole laser focusing realization device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106646819A true CN106646819A (en) | 2017-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611095691.3A Pending CN106646819A (en) | 2016-12-02 | 2016-12-02 | Single-hole laser focusing realization device and method |
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Citations (8)
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| CN1339716A (en) * | 2000-08-23 | 2002-03-13 | 奥林巴斯光学工业株式会社 | Camera regulator and its regulating method |
| CN1347001A (en) * | 2000-10-03 | 2002-05-01 | 奥林巴斯光学工业株式会社 | Range finding device and adjusting device therefor |
| CN101030252A (en) * | 2006-03-03 | 2007-09-05 | 富士通株式会社 | Image capturing apparatus having distance measurement function |
| CN202794615U (en) * | 2012-06-26 | 2013-03-13 | 一诺仪器（威海）有限公司 | Light receiving and transmitting integrated assembly |
| JP2014202913A (en) * | 2013-04-04 | 2014-10-27 | 日本電信電話株式会社 | Differential phase modulation-signal demodulation circuit and demodulation method thereof |
| CN104197844A (en) * | 2014-09-18 | 2014-12-10 | 中国工程物理研究院流体物理研究所 | All optical fiber frequency domain interference absolute distance measurement method and device |
| CN105681644A (en) * | 2014-11-20 | 2016-06-15 | 中兴通讯股份有限公司 | Focal distance adjusting method and device and terminal |
| CN106019531A (en) * | 2016-07-29 | 2016-10-12 | 深圳市韩光奥特电子有限公司 | Phase position ranging camera module and automatic alarming method thereof |
-
2016
- 2016-12-02 CN CN201611095691.3A patent/CN106646819A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1339716A (en) * | 2000-08-23 | 2002-03-13 | 奥林巴斯光学工业株式会社 | Camera regulator and its regulating method |
| CN1347001A (en) * | 2000-10-03 | 2002-05-01 | 奥林巴斯光学工业株式会社 | Range finding device and adjusting device therefor |
| CN101030252A (en) * | 2006-03-03 | 2007-09-05 | 富士通株式会社 | Image capturing apparatus having distance measurement function |
| CN202794615U (en) * | 2012-06-26 | 2013-03-13 | 一诺仪器（威海）有限公司 | Light receiving and transmitting integrated assembly |
| JP2014202913A (en) * | 2013-04-04 | 2014-10-27 | 日本電信電話株式会社 | Differential phase modulation-signal demodulation circuit and demodulation method thereof |
| CN104197844A (en) * | 2014-09-18 | 2014-12-10 | 中国工程物理研究院流体物理研究所 | All optical fiber frequency domain interference absolute distance measurement method and device |
| CN105681644A (en) * | 2014-11-20 | 2016-06-15 | 中兴通讯股份有限公司 | Focal distance adjusting method and device and terminal |
| CN106019531A (en) * | 2016-07-29 | 2016-10-12 | 深圳市韩光奥特电子有限公司 | Phase position ranging camera module and automatic alarming method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |