CN105093234B - The laser ranging system of single-lens common optical axis output - Google Patents
The laser ranging system of single-lens common optical axis output Download PDFInfo
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- CN105093234B CN105093234B CN201510573812.XA CN201510573812A CN105093234B CN 105093234 B CN105093234 B CN 105093234B CN 201510573812 A CN201510573812 A CN 201510573812A CN 105093234 B CN105093234 B CN 105093234B
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- laser
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- pipe
- corner
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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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
A kind of laser ranging system of single-lens common optical axis output, it includes laser emitting portion and laser reception division, laser emitting portion includes the LASER Discharge Tube being arranged successively along optical axis, the very thin pipe of corner and the first object lens, the very thin pipe of corner is on the corner equipped with reflecting mirror, laser is set to be reflected into the first object lens through reflecting mirror, laser reception division includes first object lens, the second object lens, laser pickoff with the first object lens common optical axis, and two object lens and laser pickoff are successively installed on a sleeve along optical axis direction.The transmitting optical path and receiving light path of above-mentioned laser ranging system are angled, and share the first object lens, only need a measurement camera lens, make simple and compact for structure, and small in size, light-weight, maintenance cost is low.Moreover, the very thin pipe of corner reduces emission area greatly, the area for the reception light being blocked is minimized, and is received energy loss and is reduced to minimum, measurement range is wide, precision is high.
Description
Technical field
The present invention relates to laser observation and control technology fields, and in particular to a kind of laser ranging dress of single-lens common optical axis output
It sets.
Background technique
Laser ranging system is the instrument and equipment for carrying out Accurate Determining to target range using laser.Laser ranging system
Very thin beam of laser is projected to target at work, the laser beam being reflected back by target is received by photoelectric receiving device.Timing
Device measures laser beam from being emitted to the received time, and then calculates the distance from laser output position to measured target.It is existing
Laser range finder transmitting with reception optical axis be to separate, volume is big, and optical axis and focal length are all unable to adjust, laser ranging system
Application be greatly limited and fetter, it is small in size it would therefore be highly desirable to it is excellent to research and develop a kind of reliable performance, ranging, and optical axis
The adjustable laser ranging system of adjustable focal length.
Summary of the invention
In view of this, providing, one kind is simple and compact for structure, and small in size, light-weight, measurement range is wide, and stability is good, measurement
Precision is high, the laser ranging system of the low single-lens common optical axis output of maintenance cost.
A kind of laser ranging system of single-lens common optical axis output comprising laser emitting portion and laser reception division,
The laser emitting portion includes the LASER Discharge Tube that setting is arranged successively along optical axis, the very thin pipe of corner and the first object lens, institute
It states the very thin pipe of corner and is on the corner equipped with reflecting mirror, enter after issuing laser by LASER Discharge Tube in the very thin pipe of corner and through anti-
It penetrates mirror and is reflected into the first object lens, the laser reception division includes first object lens, the second object with the first object lens common optical axis
Mirror, laser pickoff, first object lens, the second object lens and laser pickoff are successively installed on a set along optical axis direction
On cylinder.
Further, the very thin pipe of the corner is 90 degree of corners, and the reflecting mirror is with the first object lens primary optical axis into 45 degree
Reflecting mirror.
Further, the very thin pipe of the corner includes transverse pipe and longitudinal pipe, the central axis of the transverse pipe and the first object
The key light overlapping of axles of mirror, the central axis of the longitudinal pipe and the transmitting optical axis coincidence of LASER Discharge Tube.
Further, the caliber of the very thin pipe of the corner is 5mm-6mm.
Further, the laser pickoff has laser pick-off pipe, and the sleeve has the first end close to object side
With the second end far from object side, the laser pick-off pipe is assemblied in the second end of the sleeve, and first object lens are located at
The first end of sleeve, the laser pick-off pipe, the second object lens and the first object lens common optical axis.
Further, first axis adjustment structure is equipped between the laser pick-off pipe and the second end of the sleeve,
For adjusting the distance between laser pick-off pipe and the second object lens.
Further, the installation quadrangle of the laser pick-off pipe is respectively equipped with primary optic axis adjustment structure, sharp for adjusting
Light receiving tube is in the position for adjusting two objective lens optical axis perpendicular to the position in the plane for receiving optical axis.
Further, the very thin pipe of the corner is assemblied on a casing, and described sleeve pipe is installed on laser with co-axial form
The front end of emission of transmitting tube is equipped with the second axial adjustment structure between the very thin pipe of the corner and casing, for adjusting corner fibre
The position of tubule in the axial direction is directed at reflecting mirror and the optical axis of the first object lens.
Further, the quadrangle of the LASER Discharge Tube is respectively equipped with the second optical axis regulating structure, for adjusting corner fibre
Position of the tubule on the plane perpendicular to transmitting optical axis, is directed at reflecting mirror and the optical axis of the first object lens.
Further, it is equipped with the whole reflection deflecting mirror of tilt adjustable in the light-emitting window of first object lens, so that ranging side
To change predetermined angular.
In the laser ranging system of above-mentioned single-lens common optical axis output, the laser of transmitting turns through the very thin pipe of corner and reflecting mirror
To the first object lens, receives after being reflected by object and pass to the second object lens in returning the first object lens, then received by reception pipe.Cause
This, emits and receives at an angle, such as an angle of 90 degrees, and common optical axis exports, camera lens (i.e. the first object lens) the needs of output
One, i.e., a measurement camera lens is only needed, keeps range unit structure simpler compact, volume is smaller, and weight is lighter, maintenance
Expense is low.Moreover, keeping measurement range wide by laser ranging mode, stability is good, and guides laser hair by the very thin pipe of corner
It penetrates, reduces emission area greatly, the area of reception light being blocked in common optical axis output minimizes, to allow reception
The loss of energy is reduced to minimum, and measurement accuracy is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the laser ranging system of the single-lens common optical axis output of the embodiment of the present invention.
Fig. 2 is the installation fine adjustment structural schematic diagram between laser and PCB in Fig. 1.
Fig. 3 is the structural schematic diagram of the laser ranging system of the single-lens common optical axis output of another embodiment of the present invention.
Specific embodiment
Below with reference to specific embodiments and the drawings, the present invention is described in detail.
Referring to Fig. 1, showing the laser ranging system 10 of the single-lens common optical axis output of the embodiment of the present invention comprising swash
Light emitting portion and laser reception division, the laser emitting portion include the LASER Discharge Tube that setting is arranged successively along optical axis
11, the very thin pipe 16 of corner and the first object lens 15, the very thin pipe 16 of corner are on the corner equipped with reflecting mirror 161, make laser by swashing
Light-emitting tube 11 enters in the very thin pipe 16 of corner after issuing and is reflected into the first object lens 15, the laser pick-off through reflecting mirror 161
Part includes first object lens 15, the second object lens 14, laser pickoff 17 with 15 common optical axis of the first object lens, first object
Mirror 15, the second object lens 14 and laser pickoff 17 are successively installed on a sleeve 12 along optical axis direction.
Specifically, the very thin pipe 16 of corner is preferably 90 degree of corners, and reflecting mirror 161 is preferably with the first object lens primary optical axis at 45
The reflecting mirror 161 of degree.The very thin pipe 16 of corner includes transverse pipe 161 and longitudinal pipe 163, the central axis of the transverse pipe 161 and the
The key light overlapping of axles of one object lens 15, the central axis of the longitudinal pipe 163 and the transmitting optical axis coincidence of LASER Discharge Tube 11.Laser hair
The transmitting optical axis for penetrating pipe 11 is vertical with the primary optical axis of the first object lens 15.In this way, the laser that LASER Discharge Tube 11 emits is by longitudinal
Pipe 163 is reflected by reflecting mirror 161 and is projected along transverse pipe 161, and the optical center through the first object lens 15 is sent on object, then instead
It is emitted back towards and.The optical center of the first object lens of central axial alignment 15 of transverse pipe 161, laser do not change direction by optical center, convenient for harmonizing
Measurement direction improves measurement accuracy.LASER Discharge Tube 11 is also preferably the very thin pipe of LASER Discharge Tube, and diameter is very thin slightly larger than corner
Pipe 16.
Laser pickoff 17 has laser pick-off pipe 171, and the sleeve 12 is with the first end 121 close to object side and far
The second end 122 from object side, the laser pick-off pipe 171 are assemblied in the second end 122 of the sleeve 12, first object
Mirror 15 is located at the first end 121 of sleeve 12,15 common optical axis of the laser pick-off pipe 171, the second object lens 14 and the first object lens.The
The size of one object lens 15 is greater than the second object lens 14, and the diameter of the first end 121 of sleeve 12 is greater than the second end 122.Sleeve 12
First end 121 and the second end 122 is corresponding has the first inner chamber 123 and second inner chamber 124 communicated, first object lens
15 are placed in the accent of first inner chamber 123, the transverse pipe 162 and reflecting mirror 161 and part longitudinal pipe 163 of the very thin pipe 16 of corner
In first inner chamber 123, another part longitudinal pipe 163 stretches out in first inner chamber 123, that is, stretches out in sleeve 12 and 19 phase of casing
It connects.The diameter of first inner chamber 123 is greater than the diameter of second inner chamber 124.Second inner chamber 124 is tubular conduit, the tubulose of sleeve 12
Second inner chamber 124 is connect with laser pick-off pipe 171, and the second object lens 14 are located at second inner chamber 124 and 123 joint of first inner chamber.
First object lens 15 are preferably convergent lens, such as can be but not limited to, and convex lens or plano-convex lens or half flat half convex lens lead to
It crosses the first object lens 13 and receives the echo light generated through measured object diffusing reflection, and the echo light is focused, enhance
Optical signal, the second object lens 14 are preferably concavees lens, are mainly used for reflecting 15 convergent laser of the first object lens at directional light, to connect
It receives.
Further, the installation quadrangle of the laser pick-off pipe 171 is respectively equipped with primary optic axis adjustment structure, for adjusting
Laser pick-off pipe 171 is in the position for adjusting two objective lens optical axis perpendicular to the position in the plane for receiving optical axis.As shown in the figure,
Primary optic axis adjustment structure mainly adjusts optical axis in position up and down.
The quadrangle of LASER Discharge Tube 11 is respectively equipped with the second optical axis regulating structure, for adjusting the very thin pipe of corner 16 vertical
Position in the plane of transmitting optical axis, is directed at reflecting mirror 161 and the optical axis of the first object lens 15, i.e., will be in transverse pipe 161
Mandrel is directed at the optical center of the first object lens 15.
As shown in Fig. 2, laser connects by taking one jiao of optical axis regulating structure in the installation quadrangle of laser pick-off pipe 171 as an example
Closed tube 171 (i.e. laser sensor) is installed on a pcb board 174 by mounting plate 173, and primary optic axis adjustment structure is screw thread
Installation and adjustment mode comprising the through-hole or screw hole 175,176 that are opened up on pcb board 174 and mounting plate 173 respectively and fastening
Part, fastener include that screw 178 and nut 179 it is of course also possible to set screw hole mode in mounting plate 173 do not need nut.PCB
Through-hole or screw hole 175 on plate 174 are greater than through-hole or screw hole 176 on mounting plate 173, in this way, when needing to adjust laser
Position up and down, by loosening fastener, i.e., the position of fine-tuning laser pick-off pipe 171.Similarly, LASER Discharge Tube 11 has
There is mounting plate, be installed on pcb board, is again provided with through-hole or screw hole 176, is connected by fastener, and the hole on pcb board is big
In the hole on mounting plate, to finely tune the position of LASER Discharge Tube 11.
Further, laser pick-off pipe 171 is preferably the photoelectric receiving tubes such as APD or CCD, laser pick-off pipe 171 with it is described
First axis adjustment structure is equipped between the second end 122 of sleeve 12, for adjusting laser pick-off pipe 171 and the second object lens 14
The distance between.The very thin pipe 16 of corner is assemblied on a casing 19, and described sleeve pipe 19 is installed on Laser emission with co-axial form
The front end of emission of pipe 11 is equipped with the second axial adjustment structure between the very thin pipe 16 of the corner and casing 19, for adjusting corner
The position of very thin pipe 16 in the axial direction is directed at reflecting mirror 161 and the optical axis of the first object lens 15, i.e., by the center of transverse pipe 161
Axis is directed at the optical center of the first object lens 15.Further, the caliber of the very thin pipe 16 of corner is 5mm-6mm.
Specifically, first axis adjustment structure and the second axial adjustment structure can be screw thread regulative mode, for example, respectively
It is arranged in correspondence with screw thread on sleeve 12 and the inside and outside wall of reception pipe 171, on the inside and outside wall of casing 19 and the very thin pipe 16 of corner
It is arranged in correspondence with screw thread.First axis adjustment structure and the second axial adjustment structure can also be using protrusion and vacancy or sliding slot
Fit structure is arranged in correspondence with more for example, vacancy or sliding slot are arranged on the inner wall of sleeve 12 on the outer wall of reception pipe 171
Similarly vacancy or sliding slot are arranged on the inner wall of casing 19, accordingly sets on the inside and outside wall of the very thin pipe 16 of corner for a protrusion
Set multiple protrusions.By first axis adjustment structure and the second axial adjustment structure, can be focused with front-rear direction.First light
Axis adjustment structure and the second optical axis regulating structure also can be, but not limited to screw thread regulative mode, and the two is used cooperatively.First axis
Adjustment structure and the second axial adjustment structure can make laser ranging effect reach best with fit applications.Pass through above-mentioned each adjusting
Structure can more precisely carry out various rangings in application, and use scope is extensive.
As shown in figure 3, in another embodiment of the present invention, further, in the light-emitting window of first object lens 15
Equipped with the whole reflection deflecting mirror 18 of tilt adjustable, so that ranging direction changes predetermined angular.Reflection deflecting mirror 18 inclines with optical axis
Angle is preferably 45 degree, i.e., reflection deflecting mirror 18 includes 45 degree of reflection deflecting mirrors, makes light that 90 degree of transformations occur.Certainly, reflection is inclined
The inclination angle of tilting mirror 18 can according to need setting and any adjusting, and reflection deflecting mirror 18 is installed on an adjusting bracket, passes through
The inclination angle of its adjustable reflection deflecting mirror 18.In this way, optical path is deflected, change ranging direction, for example, by using
45 degree of reflection deflecting mirrors 18 make light that 90 degree of transformations occur.Structure is simple, powerful, the more flexible multiplicity of measurement range.
When concrete application, laser is first emitted by LASER Discharge Tube 11, goes to first through the very thin pipe 16 of corner and reflecting mirror 161
Object lens 15 are received after being reflected by object and pass to the second object lens in returning the first object lens 15, then received by laser pick-off pipe 17.
Therefore, emit and receive at an angle, such as an angle of 90 degrees, and common optical axis exports, the camera lens (i.e. the first object lens) of output only need to
One is wanted, i.e., only needs a measurement camera lens, keeps range unit structure simpler compact, volume is smaller, and weight is lighter, dimension
It is low to repair expense.The present apparatus further includes adding reflection deflecting mirror 18 at any angle in light-emitting window, changes ranging direction, including add 45
Degree reflection deflecting mirror, makes light that 90 degree of transformations occur.In addition, passing through the very thin pipe 16 of corner since transmitting laser band fast axle is compressed
Reduce emission area greatly, is minimized in common optical axis output by the area that the very thin pipe 16 of corner blocks reception light, from
And the loss for receiving energy is allowed to be reduced to minimum, thus, not only accomplish common optical axis output and received, but also does not influence laser ranging essence
Degree.By laser ranging mode, keep measurement range wide, stability is good, and measurement accuracy is high.
It should be noted that the invention is not limited to above embodiment, creative spirit according to the present invention, this field
Technical staff can also make other variations, and the variation that these creative spirit according to the present invention are done should all be included in this hair
It is bright it is claimed within the scope of.
Claims (9)
1. a kind of laser ranging system of single-lens common optical axis output comprising laser emitting portion and laser reception division,
It is characterized in that, the laser emitting portion includes the LASER Discharge Tube that setting is arranged successively along optical axis, corner fibre pipe and first
Object lens, the corner fibre pipe are on the corner equipped with reflecting mirror, enter in corner fibre pipe simultaneously after issuing laser by LASER Discharge Tube
The first object lens are reflected into through reflecting mirror, and the laser reception division includes first object lens, the with the first object lens common optical axis
Two object lens, laser pickoff, first object lens, the second object lens and laser pickoff are successively installed on one along optical axis direction
On a sleeve, at an angle, the corner fibre pipe is assemblied in one to the optical axis of the optical axis of the Laser emission and laser pick-off
On casing, described sleeve pipe is installed on the front end of emission of LASER Discharge Tube with co-axial form, sets between the corner fibre pipe and casing
There is the second axial adjustment structure, for adjusting the position of corner fibre pipe in the axial direction, makes the optical axis pair of reflecting mirror and the first object lens
It is quasi-.
2. single-lens common optical axis as described in claim 1 exports laser ranging system, which is characterized in that the corner fibre pipe is
90 degree of corners, the reflecting mirror are with the first object lens primary optical axis into 45 degree of reflecting mirror.
3. single-lens common optical axis as claimed in claim 2 exports laser ranging system, which is characterized in that the corner fibre pipe packet
Include transverse pipe and longitudinal pipe, the key light overlapping of axles of the central axis of the transverse pipe and the first object lens, the central axis of the longitudinal pipe
With the transmitting optical axis coincidence of LASER Discharge Tube.
4. single-lens common optical axis as described in claim 1 exports laser ranging system, which is characterized in that the corner fibre pipe
Caliber is 5mm-6mm.
5. single-lens common optical axis as described in claim 1 exports laser ranging system, which is characterized in that the laser pickoff
With laser pick-off pipe, the sleeve has the first end close to object side and the second end far from object side, and the laser connects
Closed tube is assemblied in the second end of the sleeve, and first object lens are located at the first end of sleeve, the laser pick-off pipe,
Two object lens and the first object lens common optical axis.
6. single-lens common optical axis as claimed in claim 5 exports laser ranging system, which is characterized in that the laser pick-off pipe
First axis adjustment structure is equipped between the second end of the sleeve, for adjusting between laser pick-off pipe and the second object lens
Distance.
7. single-lens common optical axis as claimed in claim 6 exports laser ranging system, which is characterized in that the laser pick-off pipe
Installation quadrangle be respectively equipped with primary optic axis adjustment structure, for adjust laser pick-off pipe perpendicular to receive optical axis plane
Position to adjust the positions of two objective lens optical axis.
8. single-lens common optical axis as claimed in claim 7 exports laser ranging system, which is characterized in that the LASER Discharge Tube
Quadrangle be respectively equipped with the second optical axis regulating structure, for adjust corner fibre pipe perpendicular to transmitting optical axis plane on position
It sets, is directed at reflecting mirror and the optical axis of the first object lens.
9. single-lens common optical axis as described in claim 1 exports laser ranging system, which is characterized in that in first object lens
Light-emitting window be equipped with the whole reflection deflecting mirror of tilt adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573812.XA CN105093234B (en) | 2015-09-08 | 2015-09-08 | The laser ranging system of single-lens common optical axis output |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573812.XA CN105093234B (en) | 2015-09-08 | 2015-09-08 | The laser ranging system of single-lens common optical axis output |
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| Publication Number | Publication Date |
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| CN105093234A CN105093234A (en) | 2015-11-25 |
| CN105093234B true CN105093234B (en) | 2019-01-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485625A (en) * | 2002-08-08 | 2004-03-31 | ��ʽ�������տ� | High dimensional similarity combining method based on zoning |
| CN1779486A (en) * | 2004-11-19 | 2006-05-31 | 南京德朔实业有限公司 | Laser range finde |
| CN104865576A (en) * | 2015-06-01 | 2015-08-26 | 中国工程物理研究院激光聚变研究中心 | Compact ultra short pulse laser remote ranging system and ranging method thereof |
| CN205015479U (en) * | 2015-09-08 | 2016-02-03 | 蒋柏娴 | Laser rangefinder of single -lens common optical axis output |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004313A (en) * | 2010-09-03 | 2011-04-06 | 北京理工大学 | Common aperture laser active illuminated imaging system |
| US9964745B2 (en) * | 2012-08-31 | 2018-05-08 | Nikon Corporation | Compact laser radar corner cube |
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2015
- 2015-09-08 CN CN201510573812.XA patent/CN105093234B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485625A (en) * | 2002-08-08 | 2004-03-31 | ��ʽ�������տ� | High dimensional similarity combining method based on zoning |
| CN1779486A (en) * | 2004-11-19 | 2006-05-31 | 南京德朔实业有限公司 | Laser range finde |
| CN104865576A (en) * | 2015-06-01 | 2015-08-26 | 中国工程物理研究院激光聚变研究中心 | Compact ultra short pulse laser remote ranging system and ranging method thereof |
| CN205015479U (en) * | 2015-09-08 | 2016-02-03 | 蒋柏娴 | Laser rangefinder of single -lens common optical axis output |
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