CN208888498U - A kind of laser radar optical axis adjustment means - Google Patents
A kind of laser radar optical axis adjustment means Download PDFInfo
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- CN208888498U CN208888498U CN201821732106.0U CN201821732106U CN208888498U CN 208888498 U CN208888498 U CN 208888498U CN 201821732106 U CN201821732106 U CN 201821732106U CN 208888498 U CN208888498 U CN 208888498U
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- wedge
- optical axis
- lens barrel
- laser radar
- microscope base
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Abstract
This application involves laser radar technique more particularly to a kind of laser radar optical axis adjustment means.This application discloses a kind of laser radar optical axis adjustment means, including collimating mirror, microscope base, double wedge adjusting groups, the collimating mirror, double wedge adjusting groups are connect with microscope base respectively, double wedge adjusting groups include two wedges, two wedge seats, two lens barrels, two wedges are separately mounted on two wedge seats, two wedge seats are separately positioned in two lens barrels, contact surface between the wedge seat and lens barrel is cascaded surface, the step of wedge seat and lens barrel is closely slidably matched, around optical axis rotation in lens barrel, it is connected and fixed on microscope base before and after two lens barrels.Present application addresses structure is complicated, volume is larger existing for tradition adjustment device, the problem of precision susceptible, structure is simple, small in size, facilitates adjusting.
Description
Technical field
This application involves the optical axis adjustment means in optical ranging field more particularly to a kind of laser radar.
Background technique
Laser radar is using LED or laser as transmitting light source, using detecting technique means active away from
From detecting devices.Laser radar mainly includes laser, transmitting module, receiving module etc..Laser emitting light optical axis when use
Must be consistent with transmitting module optical axis, it just can guarantee measurement accuracy.
In existing laser radar optical system, due to the error of processing technology and installation process introducing, it tends to be difficult to
It is coaxial on realization theory.When optical axis bias is more than the range allowed of system, then need to carry out aligning alignment to optical axis.Generally
Ground is usually provided with mechanical regulating device, laser or transmitting module or both are respectively provided with to adjust optical axis alignment
In mechanical regulating device, mechanical regulating device carries out two-dimension translational adjusting in the plane perpendicular to optical axis, and to light
Axis carries out the rotation of pitching beat two degrees of freedom and adjusts, and completes to be locked after adjusting.It is especially portable to swash due to laser radar
Optical radar, often outdoors under the conditions of apply, to be able to bear violent impact vibration, traditional regulation mechanism, which is difficult to meet, to be wanted
It asks.And mechanic adjustment unit is reinforced, then structure is complex, and volume is larger, and each freedom degree adjusts and easily occurs mutually
It influences.Therefore need to research and develop a kind of lighter, better effect optical axis adjustment means.
Utility model content
Embodiments herein is to propose a kind of laser radar optical axis adjustment means, can conveniently realize optical axis
Aligning, and device volume is small, and adjustment process is relatively simple.
The application uses following technical scheme:
On the one hand, a kind of laser radar optical axis adjustment means, including collimating mirror, microscope base, double wedge adjusting groups, the collimation
Mirror, double wedge adjusting groups are connect with microscope base respectively, and double wedge adjusting groups include two wedges, two wedge seats, two
Lens barrel, two wedges are separately mounted on two wedge seats, and two wedge seats are separately positioned in two lens barrels, described
Contact surface between wedge seat and lens barrel is cascaded surface, and the step of wedge seat and lens barrel is closely slidably matched, in lens barrel around
Optical axis rotation, two lens barrels front and backs are connected and fixed on microscope base.
In one possible implementation, the wedge seat cascaded surface includes at least two boss, one of boss
Axial length be greater than boss axial length engaged therewith in lens barrel, the differences of two boss axial lengths is 0.01-
0.10mm。
In one possible implementation, the difference of two boss axial lengths is 0.02-0.05mm.
In one possible implementation, the wedge seat is mounted on lens barrel by the pressure ring being arranged in lens barrel
Interior, the pressure ring is spirally connected with wedge seat, screw rod matched with pressure ring is additionally provided on lens barrel, for pressure ring to be pressed on wedge
On seat.
In one possible implementation, it is all carved on step engaged therewith in a boss and lens barrel for wedge seat
There is graduation mark, the window for adjusting is offered on the position that lens barrel corresponds to the boss.
In one possible implementation, the graduation mark spacing is 0.3-0.5mm.
In one possible implementation, the wedge diameter is 10-30mm.
In one possible implementation, the wedge diameter is 10-15mm.
In one possible implementation, the collimating mirror is connect by collimating mirror microscope base with microscope base, the mirror
Seat one end is provided with aperture identical with collimating mirror microscope base diameter, and collimating mirror is inserted into aperture, until the end face top of collimating mirror is arrived
In the boss face of microscope base,
In one possible implementation, the laser radar optical axis adjustment means, further include pressing ring, and described opens
The outside in hole is equipped with external screw thread, the screw-internal thread fit with pressing ring, and pressing ring screws in, and one end face of pressing ring is pressed on collimating mirror microscope base
Rear portion end face on, collimating mirror microscope base is fastened.
The embodiment of the present application overcomes the deficiencies in the prior art, brings following good effect:
Because carrying out optical axis adjusting using double wedge optical axis adjusting groups in embodiment, pass through ladder between wedge seat and lens barrel
Face combines, and solves existing for tradition adjustment device the problem of structure is complicated, volume is larger, precision susceptible, and structure is simple,
It is small in size, facilitate adjusting.
Detailed description of the invention
Fig. 1 is 1 structural schematic diagram of the embodiment of the present application.
Fig. 2 is 1 decomposition diagram of the embodiment of the present application.
Fig. 3 is 1 cross-sectional view of the embodiment of the present application.
Fig. 4 is 1 wedge enlarged diagram of the embodiment of the present application.
In figure:
1, microscope base；2, collimating mirror, 3, collimating mirror microscope base；4, the first wedge；5, the first wedge seat；6, the first lens barrel；7,
Two wedges；8, the second wedge seat；9, the second lens barrel；10, first boss, 11, second boss；12, third boss；13, screw；
14, the first pressure ring；15, the second pressure ring；16, graduation mark；17, window；18, aperture；19, boss face；20, pressing ring；21, optical fiber is defeated
Outlet, 22, collimating mirror end face.
Specific embodiment
Further illustrate the technical solution of the application below with reference to the accompanying drawings and specific embodiments.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
As shown in Figure 1, a kind of laser radar optical axis adjustment means, including collimating mirror 2, microscope base 1, double wedge adjusting groups, institute
State collimating mirror 2, double wedge adjusting groups are connect with microscope base 1 respectively, wherein collimating mirror 2 by collimate microscope base 3 connect with microscope base 1.Such as
Shown in Fig. 3, it is the first light in the present embodiment that double wedge adjusting groups, which include two wedges, two wedge seats, two lens barrels,
Wedge 4, the first wedge seat 5, the first lens barrel 6, the second wedge 7, the second wedge seat 8, the second lens barrel 9；First wedge 4,
Two wedges 7 are separately mounted to the first wedge seat 5, on the second wedge seat 8, and the first wedge seat 5, the second wedge seat 8 are separately positioned on
In first lens barrel 6, the second lens barrel 9, between the first wedge seat 5 and the first lens barrel 6, the second wedge seat 8 and the second lens barrel 9
Contact surface is cascaded surface, and the step of wedge seat and lens barrel is closely slidably matched, around optical axis rotation, the first lens barrel 6 in lens barrel
It is connected and fixed on microscope base 1 with before and after the second lens barrel 9.
Single group wedge rotational structure is formed with wedge, wedge seat, lens barrel in the application, is connected before and after two wedge rotational structures
It connects, wedge seat, lens barrel are fitted close by the way of cascaded surface combination, so that wedge is done minor rotation and be guaranteed
The concentricity of two wedge seats and lens barrel.
The wedge seat cascaded surface includes at least two boss, is first boss 10, second boss 11 in the present embodiment,
The axial length of middle first boss 10 is greater than 12 axial length of third boss engaged therewith in lens barrel, the difference between two boss
Value is 0.01-0.10mm.
Because the axial length of first boss 10 is greater than the axial length of third boss 12 engaged therewith in lens barrel, first
There are gap between boss 10 and third boss 12, guarantee that wedge seat can be rotated relative to lens barrel, axial length 0.01-0.10mm,
The too small rotation in gap is inconvenient, and gap is excessive, cannot be fitted close.
Inventor has found in practical work process, and the axial length of first boss 10 is greater than engaged therewith the in lens barrel
When the axial length 0.02-0.05mm of three boss 12, rotation is more convenient, while meeting close-fitting requirement.
First wedge seat 5 passes through the first pressure ring 14 being arranged in the first lens barrel 6 and is mounted in the first lens barrel 6, the second light
Wedge block 8 passes through the second pressure ring being arranged in the second lens barrel 9 and is mounted in the second lens barrel 9, and the pressure ring is spirally connected with wedge seat,
Screw 13 matched with pressure ring is additionally provided on lens barrel, for pressure ring to be pressed on wedge seat.
Pressure ring is spirally connected with wedge seat, and lock screw fixation is fixed on wedge seat in lens barrel, and pressure ring is pressed on by screw 13
On wedge seat, fasten wedge finally, wedge no longer rotates after fastening, can tolerate extraneous vibration, to ensure that optical axis calibrator
Accuracy afterwards, it is with good stability.
The adjusting of wedge seat can use traditional approach, such as increase by a gear regulating mechanism, and gear adjusting can pass through hand
Dynamic adjusting or motor control gear are adjusted, and light power meter (sensor) can also be added, and whether real-time statistics optical axis is aligned, real
Now automatically adjust.But this design can make whole device, and structure is complicated, and volume becomes larger.
As shown in figure 4, the application is carved on step engaged therewith in the second boss 11 and lens barrel of wedge seat
Line 16 is spent, the window 17 for adjusting is offered on the position that lens barrel corresponds to second boss 11.It is adjusted when being connected with double wedges
When the collimating mirror 2 of device is placed in the optical-mechanical system of transmitting module, second boss 11 is stirred with plectrum by the window of lens barrel
Graduation mark adjust the rotation of two wedges respectively, by the adjusting to two wedges, realize the aligning of output optical axis.Graduation mark 16
Spacing can pass through machining control.
It is preferred that graduation mark spacing is 0.3-0.5mm.Within the scope of this, guarantee optical axis degree of regulation.
Because using the design of wedge, wedge seat, lens barrel composition single group wedge rotational structure, what wedge diameter can design
Smaller, the wedge diameter is 10-30mm.Under optimum condition, the wedge diameter is 10-15mm.
Described 1 one end of microscope base is provided with aperture 18 identical with 3 diameter of collimating mirror microscope base, is provided with boss in aperture 18
Face 19, collimating mirror microscope base are inserted into aperture, until on the end face top to the boss face of microscope base of collimating mirror.Collimating mirror under this structure
There is no redundant space between microscope base, wedge adjusts component and is mounted directly to laser collimation output end, and overall volume is small and adjusts
Section is convenient.
The laser radar optical axis adjustment means further include pressing ring 20, and the outside of the aperture 18 is equipped with external screw thread,
The screw-internal thread fit of itself and pressing ring 20, pressing ring 20 screw in, and one end face of pressing ring 20 is pressed on the rear portion end face of collimating mirror microscope base 3
On, collimating mirror microscope base 3 is fastened.
The present embodiment working principle is as follows:
As shown in Figure 1, double wedge adjustment groups are mounted on microscope base, it is located in front of Laser emission cylinder, double wedge adjustment groups
Middle wedge seat can be freely rotated, and internal wedge also makees identical rotation.
A piece of wedge first rotates an angle, and unitary rotation is to second angle position together for latter two right wedge, at this time
Optical axis can be accurately adjusted on required direction to being finely adjusted respectively to two wedge circles, realize aim at optical axis and
The orientation consistency of Laser emission optical axis adjusts, and after wedge circle rotate in place, can tighten lock-screw, wedge seat is consolidated
Calmly, the phenomenon that wedge seat will not rotate can tolerate external severe impact vibration, thus after ensure that two optical axis calibrators
Accuracy.
Describe the technical principle of the application in conjunction with specific embodiments above.These descriptions are intended merely to explain the application's
Principle, and it cannot be construed to the limitation to the application protection scope in any way.Based on the explanation herein, the technology of this field
Personnel do not need to pay for creative labor the other specific embodiments that can associate the application, these modes are fallen within
Within the protection scope of the application.
Claims (10)
1. a kind of laser radar optical axis adjustment means, including collimating mirror, microscope base, double wedge adjusting groups, the collimating mirror, double wedges
Adjusting group is connect with microscope base respectively, which is characterized in that double wedge adjusting groups include two wedges, two wedge seats, two
A lens barrel, two wedges are separately mounted on two wedge seats, and two wedge seats are separately positioned in two lens barrels, institute
Stating the contact surface between wedge seat and lens barrel is cascaded surface, and the step of wedge seat and lens barrel is closely slidably matched, in lens barrel
Around optical axis rotation, it is connected and fixed on microscope base before and after two lens barrels.
2. a kind of laser radar optical axis adjustment means according to claim 1, which is characterized in that the wedge seat cascaded surface
Including at least two boss, the axial length of one of boss is greater than boss axial length engaged therewith in lens barrel, and two
The difference of boss axial length is 0.01-0.10mm.
3. a kind of laser radar optical axis adjustment means according to claim 2, which is characterized in that two boss axis
It is 0.02-0.05mm to the difference of length.
4. a kind of laser radar optical axis adjustment means according to claim 3, which is characterized in that wedge seat is existed by setting
Pressure ring in lens barrel is mounted in lens barrel, and the pressure ring is spirally connected with wedge seat, and spiral shell matched with pressure ring is additionally provided on lens barrel
Nail, for pressure ring to be pressed on wedge seat.
5. a kind of laser radar optical axis adjustment means according to claim 4, which is characterized in that one in wedge seat is convex
It is all carved with graduation mark on step engaged therewith in platform and lens barrel, is offered on the position that lens barrel corresponds to the boss for adjusting
Window.
6. a kind of laser radar optical axis adjustment means according to claim 5, which is characterized in that the graduation mark spacing
For 0.3-0.5mm.
7. a kind of laser radar optical axis adjustment means according to claim 1-6, which is characterized in that the light
Wedge diameter is 10-30mm.
8. according to a kind of laser radar optical axis adjustment means according to claim 7, which is characterized in that the wedge is straight
Diameter is 10-15mm.
9. a kind of laser radar optical axis adjustment means according to claim 1, which is characterized in that the collimating mirror passes through
Collimating mirror microscope base is connect with microscope base, and described microscope base one end is provided with aperture identical with collimating mirror microscope base diameter, is set in aperture
It is equipped with boss face, collimating mirror is inserted into aperture, until on the end face top to the boss face of microscope base of collimating mirror.
10. a kind of laser radar optical axis adjustment means according to claim 9, which is characterized in that it further include pressing ring, it is described
Aperture outside be equipped with external screw thread, the screw-internal thread fit with pressing ring, pressing ring screw in, one end face of pressing ring is pressed on collimating mirror
In the rear portion end face of microscope base, collimating mirror microscope base is fastened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732106.0U CN208888498U (en) | 2018-10-24 | 2018-10-24 | A kind of laser radar optical axis adjustment means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821732106.0U CN208888498U (en) | 2018-10-24 | 2018-10-24 | A kind of laser radar optical axis adjustment means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208888498U true CN208888498U (en) | 2019-05-21 |
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ID=66517204
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821732106.0U Active CN208888498U (en) | 2018-10-24 | 2018-10-24 | A kind of laser radar optical axis adjustment means |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320624A (en) * | 2019-07-22 | 2019-10-11 | 中国人民解放军总参谋部第六十研究所 | Quasi- orthogonal wedge adjustment mechanism |
| CN111090178A (en) * | 2018-10-24 | 2020-05-01 | 北醒（北京）光子科技有限公司 | Laser radar optical axis adjusting device |
| CN114325949A (en) * | 2022-02-09 | 2022-04-12 | 中国科学院上海光学精密机械研究所 | High-reliability optical fiber coupling assembly system |
-
2018
- 2018-10-24 CN CN201821732106.0U patent/CN208888498U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090178A (en) * | 2018-10-24 | 2020-05-01 | 北醒（北京）光子科技有限公司 | Laser radar optical axis adjusting device |
| CN110320624A (en) * | 2019-07-22 | 2019-10-11 | 中国人民解放军总参谋部第六十研究所 | Quasi- orthogonal wedge adjustment mechanism |
| CN114325949A (en) * | 2022-02-09 | 2022-04-12 | 中国科学院上海光学精密机械研究所 | High-reliability optical fiber coupling assembly system |
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