CN110515056A - Laser radar athermal optical receiver assembly - Google Patents
Laser radar athermal optical receiver assembly Download PDFInfo
- Publication number
- CN110515056A CN110515056A CN201810491288.5A CN201810491288A CN110515056A CN 110515056 A CN110515056 A CN 110515056A CN 201810491288 A CN201810491288 A CN 201810491288A CN 110515056 A CN110515056 A CN 110515056A
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- lens
- cylinder base
- contrary compensation
- laser radar
- compensation layer
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- 230000003287 optical effect Effects 0.000 title claims abstract description 60
- 238000001514 detection method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 15
- 239000000956 alloy Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 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
- 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
- G01S7/4816—Constructional features, e.g. arrangements of optical elements of receivers alone
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Lens Barrels (AREA)
Abstract
The present invention provides a kind of laser radar athermal optical receiver assembly comprising main lens cylinder base, the first lens, rear lens cylinder base, the second lens, Contrary compensation layer and Contrary compensation loose collar；The fixing end of Contrary compensation layer is fixedly arranged on main lens cylinder base；The positive stop end of Contrary compensation loose collar is fixedly arranged on the movable end of Contrary compensation layer, and the connecting pin of Contrary compensation loose collar is installed with rear lens cylinder base；The coefficient of expansion of Contrary compensation layer is greater than the coefficient of expansion of Contrary compensation loose collar.The present invention Contrary compensation layer and Contrary compensation loose collar different by the setting coefficient of expansion, so that at an elevated temperature, Contrary compensation layer can drive Contrary compensation loose collar and rear lens cylinder base to close to the movement of the direction of the first lens, realize that at an elevated temperature, the distance between the first lens and the second lens reduce；Offset change caused by leading to refraction index changing because of temperature to change focusing plane.
Description
Technical field
The present invention relates to a kind of laser radar athermal optical receiver assemblies.
Background technique
Currently, laser radar athermal optical receiver assembly is used to collect the swashing through object reflection of laser radar transmitting
Optical echo, laser radar athermal optical receiver assembly is by installing the first lens, other end peace in one end of main lens cylinder base
The second lens are filled, the first lens are used to collect the return laser beam that remote scattering is returned, and the second lens will be for that will pass through the first lens
Return laser beam be converted into directional light, by the setting of the first lens and the second lens, so that the laser that remote scattering is returned returns
Wave pools Centimeter Level, i.e. about 10 millimeters of spot diameter or so of directional light, then by setting the third lens, directional light is converged
It is polymerized to the hot spot that diameter is 10 microns, the optical energy focused at Lai Tigao focus center.
But because of the variation of temperature, the refractive index of lens can be made to change, change so as to cause its focal plane, when
Temperature increases, and the refractive index of lens becomes smaller, and focal plane is to close to the movement of the direction of lens.Therefore, when the temperature increases, if not
Change the distance between the first lens and the second lens, the return laser beam that the second lens can not will transmit through the first lens is converted into flat
Row light, and then lead to the subsequent optical energy that can not be improved and focus at focus center well.In the prior art, usually pass through people
For or it is electronic go realize the distance between the first lens and the second lens must adjust, but it is such operate need to increase adjusting machine
Structure, it is complicated so as to cause system structure and inconvenient.
Summary of the invention
The technical problem to be solved by the present invention is to the drawbacks described above in order to overcome the prior art, a kind of laser radar is provided and is disappeared
Heat differential optical receiver assembly.
The present invention is to solve above-mentioned technical problem by following technical proposals:
A kind of laser radar athermal optical receiver assembly, the laser radar athermal optical receiver assembly includes primary mirror
Head cylinder base, install the first lens in the main lens cylinder base, rear lens cylinder base and install in the rear lens cylinder base the
Two lens, the laser radar athermal optical receiver assembly further include:
The Contrary compensation layer extended from first lens to second lens, the Contrary compensation layer include far from institute
The fixing end of the first lens is stated, and close to the movable end of first lens, the fixing end is fixedly arranged on the main lens cylinder base；
The Contrary compensation loose collar extended from first lens to second lens, the Contrary compensation loose collar packet
The positive stop end for being fixedly arranged on the movable end is included, and is fixedly arranged on the connecting pin of the rear lens cylinder base；The rear lens cylinder base can phase
For the main lens cylinder base along the axial movement of the rear lens cylinder base；
The coefficient of expansion of the Contrary compensation layer is greater than the coefficient of expansion of the Contrary compensation loose collar.
Preferably, the inside of the main lens cylinder base is equipped with a cavity, the Contrary compensation layer and the Contrary compensation are living
Rotating ring is set to the cavity, and the Contrary compensation layer is fixed on the inner surface of the main lens cylinder base.
In the present solution, ensure that anti-by Contrary compensation layer and Contrary compensation loose collar set on the inside of main lens cylinder base
To compensation layer and Contrary compensation loose collar, deformation occurs due to temperature change or displacement can not be by the interference of extraneous factor.
Preferably, the laser radar athermal optical receiver assembly further includes a stop collar, the stop collar is embedded at
The cavity；
One end of the stop collar is fixed on the main lens cylinder base；
The other end of the stop collar is fixed on the fixing end of the Contrary compensation layer.
In the present solution, being installed on Contrary compensation layer first on stop collar, then pass through by the setting of stop collar
Stop collar is fixedly connected with main lens cylinder base, realizes being fixedly connected between one end and main lens cylinder base of Contrary compensation layer,
It facilitates user to assemble single unit system, while Contrary compensation layer is played and is more securely connected.
Preferably, the axis of the stop collar is overlapped with the axis of the main lens cylinder base；The outer surface of the connecting pin
Tight against the inner surface of the stop collar.
In the present solution, by the setting of stop collar, so that being resisted against the Contrary compensation loose collar of stop collar and being fixed on
The axis of main lens cylinder base on stop collar is overlapped, so that the rear lens cylinder base being fixed on Contrary compensation loose collar is moving
It, can be always perpendicular to the axis direction of main lens cylinder base, to ensure that the second lens installed in rear lens cylinder base when dynamic
It can be always perpendicular to the axis direction of main lens cylinder base, i.e., perpendicular to optical path.
Preferably, between being equipped between the inner surface of the Contrary compensation layer and the outer surface of the Contrary compensation loose collar
Gap.
In the present solution, setting in this way, so that the expansion of Contrary compensation layer radially does not interfere with reversed benefit
Repay moving for the firm axis along main lens cylinder base of loose collar.
Preferably, the coefficient of expansion of the stop collar is less than the coefficient of expansion of the Contrary compensation layer.
In the present solution, by the design of the material to stop collar, so that stop collar is not easy temperature distortion, so that limit
Position ring more preferably can play position-limiting action to Contrary compensation loose collar.
Preferably, the material of the Contrary compensation loose collar is aluminium alloy, the material of the Contrary compensation layer is nylon.
In the present solution, taking by the Contrary compensation layer of the Contrary compensation loose collars of aluminum alloy materials and nylon material
Match, so that when the temperature rises, the Contrary compensation layer deformation expansion of nylon material, movable end is along close to the direction of the first lens
Extend, drives the circumferential direction close to the first lens of Contrary compensation activity of aluminum alloy materials to move, to drive the second lens
Close to first lens, change caused by leading to refraction index changing because of temperature to change focusing plane is offset.
The detection cylinder base preferably, one end far from first lens of the main lens cylinder base is connected, the detection cylinder
The inside of seat is equipped with the third lens, and the rear lens cylinder base can be relative to the detection cylinder base along the axial direction of the rear lens cylinder base
It is mobile.
In the present solution, setting in this way, so that movement of the detection cylinder base without limitation on rear lens cylinder base.
Preferably, one end close to second lens of the detection cylinder base radially opens up an opening, the opening
Between second lens and the third lens, optical filter box is installed in the opening
In the present solution, allowing to plug optical filter box in the opening by the setting of opening, realizing filter set
The quick despatch of part.
Preferably, the optical filter box includes optical filter and frame, the optical filter is installed in the frame, described
Frame is arranged in the opening.
The positive effect of the present invention is that:
The present invention is small by the way that the setting coefficient of expansion is big in main lens cylinder base Contrary compensation layer and the coefficient of expansion is arranged in
Contrary compensation loose collar, so that at an elevated temperature, Contrary compensation layer can drive Contrary compensation activity circumferential close to the
The direction of one lens is mobile, to drive rear lens cylinder base that can also realize to close to the movement of the direction of the first lens in temperature liter
In the case where height, the reduction of distance between the first lens and the second lens；Mechanical passive athermal is realized, is offset because temperature is led
Induced refractive index changes to change change caused by focusing plane.
Detailed description of the invention
Fig. 1 is the partial structure diagram of the laser radar athermal optical receiver assembly of presently preferred embodiments of the present invention.
Fig. 2 is the structural schematic diagram of the laser radar athermal optical receiver assembly of presently preferred embodiments of the present invention.
Fig. 3 is the structure enlargement diagram of the part A of presently preferred embodiments of the present invention.
Description of symbols
Main lens cylinder base 100
Cavity 110
First lens 200
Rear lens cylinder base 300
Second lens 400
Detect cylinder base 500
Opening 510
Optical filter box 520
Optical filter 521
Frame 522
Contrary compensation layer 600
Fixing end 610
Movable end 620
Contrary compensation loose collar 700
Positive stop end 710
Connecting pin 720
Locating ring 730
Gap 740
Stop collar 800
The third lens 900
Specific embodiment
A preferred embodiment is named, and completely illustrates the present invention in conjunction with attached drawing to become apparent from.
As shown in Figure 1-Figure 3, a kind of laser radar athermal optical receiver assembly, the laser radar are present embodiments provided
Athermal optical receiver assembly includes main lens cylinder base 100, installs the first lens 200, rear lens cylinder in main lens cylinder base 100
Seat 300, the second lens 400 installed in rear lens cylinder base 300, detection cylinder base 500, Contrary compensation layer 600 and Contrary compensation
Loose collar 700.
The inside of main lens cylinder base 100 is equipped with a cavity 110, in the present embodiment, Contrary compensation layer 600 and Contrary compensation
Loose collar 700 is set to cavity 110, and Contrary compensation layer 600 is fixed on the inner surface of main lens cylinder base 100, Contrary compensation activity
Ring 700 is set to the inside of Contrary compensation layer 600.In other embodiments, Contrary compensation layer 600 and Contrary compensation loose collar 700
The outside of main lens cylinder base 100 can also be sheathed on.As shown in Figure 1, in this example, it will be preferably by 600 He of Contrary compensation layer
Contrary compensation loose collar 700 is set to the inside of main lens cylinder base 100, can preferably guarantee Contrary compensation layer 600 and reversed benefit
Repaying loose collar 700, deformation occurs due to temperature change or displacement, without the interference by extraneous factor.
Contrary compensation layer 600 extends from the first lens 200 to the second lens 400 comprising consolidating far from the first lens 200
Fixed end 610, and close to the movable end 620 of the first lens 200, fixing end 610 is fixedly arranged on main lens cylinder base 100, in the present embodiment
In, using threaded connection, in other embodiments, can also be connected by welding or other modes, herein not to the present invention
Protection scope its restriction effect.
Contrary compensation loose collar 700 extends from the first lens 200 to the second lens 400 comprising is fixedly arranged on movable end 620
Positive stop end 710, and be fixedly arranged on the connecting pin 720 of rear lens cylinder base 300.Rear lens cylinder base 300 can be relative to main lens cylinder base
100 along rear lens cylinder base 300 axial movement.As shown in Figure 1, connecting pin 720 is relative to positive stop end 710 far from the first lens
200, i.e. connecting pin 720 is close to one end of the second lens 400, and positive stop end 710 is close to one end of the first lens 200.
Wherein, the coefficient of expansion of Contrary compensation layer 600 is greater than the coefficient of expansion of Contrary compensation loose collar 700.In this implementation
In example, material of the aluminium alloy as Contrary compensation loose collar 700 is preferably selected, Selecting Complete Set nylon is as Contrary compensation layer
600 material.By the collocation of the Contrary compensation layer 600 of the Contrary compensation loose collar 700 and nylon material of aluminum alloy materials, make
It obtains when the temperature rises, 600 deformation expansion of Contrary compensation layer of nylon material, movable end 620 is along close to the first lens 200
Direction is extended, and drives the Contrary compensation loose collar 700 of aluminum alloy materials to move to the direction close to the first lens 200, thus band
For dynamic second lens 400 to close to the movement of 200 direction of the first lens, counteracting leads to refraction index changing because of temperature to change focusing plane
Caused by change.
In addition, laser radar athermal optical receiver assembly further includes a stop collar 800, stop collar 800 is embedded at cavity
110.One end of stop collar 800 is fixed on main lens cylinder base 100；The other end of stop collar 800 is fixed on Contrary compensation layer 600
Fixing end 610.By the setting of stop collar 800, Contrary compensation layer 600 is first installed on stop collar 800, is passing through
Stop collar 800 is fixedly connected with main lens cylinder base 100, between the one end and main lens cylinder base 100 for realizing Contrary compensation layer 600
Be fixedly connected, facilitate user and single unit system assembled.Simultaneously as main lens cylinder base 100 and Contrary compensation layer 600
Wall thickness it is all relatively thin, directly the two is attached by secure components such as bolts, cannot achieve close connection, to main lens
Cylinder base 100 and Contrary compensation layer 600 can all cause to damage, and cannot achieve multiple utilization.
Meanwhile the axis of stop collar 800 is overlapped with the axis of main lens cylinder base 100；Stop collar 800 is installed in main lens
The inside of cylinder base 100, and the inner surface tight abutment with main lens cylinder base 100, by the outer surface of connecting pin 720 tight against
The inner surface of stop collar 800.In use, if only carried out by 600 pairs of Contrary compensation loose collar 700 of Contrary compensation layer
Radial positioning, then during Contrary compensation 600 expanded by heating of layer, once each position of Contrary compensation layer 600 expands
There is non-uniform phenomenon, will lead to the Contrary compensation loose collar 700 being connected on Contrary compensation layer 600 can radially generate partially
It moves, so that on the contrary the axis of the first lens 200 and the second lens 400 is not overlapped.In the present embodiment, setting in this way,
So that the Contrary compensation loose collar 700 being resisted against on stop collar 800 and the rear lens cylinder being fixed on Contrary compensation loose collar 700
The axis of seat 300 can be overlapped with the axis of main lens cylinder base 100, so that being fixed on Contrary compensation loose collar 700
Rear lens cylinder base 300 when moving, can be installed to ensure that in rear always perpendicular to the axis direction of main lens cylinder base 100
The second lens 400 in camera lens cylinder base 300 can be always perpendicular to the axis direction of main lens cylinder base 100, i.e., perpendicular to optical path.
Wherein, the coefficient of expansion of stop collar 800 is less than the coefficient of expansion of Contrary compensation layer 600.By to stop collar 800
The design of material, so that stop collar 800 is not easy temperature distortion, so that stop collar 800 can be more preferably to Contrary compensation loose collar
700 play position-limiting action.
As shown in figure 3, between being equipped between the inner surface of Contrary compensation layer 600 and the outer surface of Contrary compensation loose collar 700
Gap 740.Setting in this way, so that the expansion of Contrary compensation layer 600 radially does not interfere with Contrary compensation loose collar 700
The firm axis along main lens cylinder base 100 moves.
As shown in Fig. 2, one end far from the first lens 200 of main lens cylinder base 100 is fixed with detection cylinder base 500, detection
The inside of cylinder base 500 is equipped with the third lens 900, and the third lens 900 are used to collect the directional light by the second lens 400, rear mirror
Head cylinder base 300 can be relative to detection cylinder base 500 along the axial movement of rear lens cylinder base 300, so that detection cylinder base 500 will not
Limit the movement of rear lens cylinder base 300.
In addition, one end close to the second lens 400 of detection cylinder base 500 radially opens up an opening 510, it is open 510
Between the second lens 400 and the third lens 900,510 positions of opening are for plugging optical filter box 520, optical filter box 520
Including optical filter 521 and frame 522, wherein optical filter 521 is installed in the frame 522, and frame 522 is arranged in described open
In mouth 510.Optical filter 521 can efficiently reduce interference of the stray light to radar.By the setting of opening 510, allow to
Optical filter box 520 is plugged in opening 510, realizes the quick despatch of optical filter box 520.While in order to reduce by optical filter
Return laser beam energy loss caused by 521, the installation of optical filter 521 should be vertical with parallel light path as far as possible, i.e., makes optical filter 521 as far as possible
The axis of vertical main lens cylinder base 100.The gating wave band of optical filter 521 determines by the laser that near-infrared laser radar uses, no
Same laser, selects different optical filters 521, and the bandwidth of the optical filter 521 of each wave band is divided into the plurality of specifications such as 1um, 2um,
The anti-interference requirement of different radars is also met while expansion of laser light wavelength applications range；It is made to reduce optical filter 521
At return laser beam energy loss, the optical path depth of parallelism between the second lens 400 and the third lens 900 is better than 2 '.
In the present invention, the first lens 200 are installed in one end of main lens cylinder base 100, in the sky of main lens cylinder base 100
Contrary compensation layer 600 is installed in chamber 110, one end far from the first lens 200 of Contrary compensation layer 600, i.e. fixing end 610,
One end far from the first lens 200 of main lens cylinder base 100 is fixedly arranged on by stop collar 800；Contrary compensation layer 600 close to the
One end of one lens 200, i.e. movable end 620 can be slidedly arranged on main lens cylinder base 100.Contrary compensation loose collar 700 is installed in reversed
The inside of compensation layer 600 realizes the axis of Contrary compensation loose collar 700 and main lens cylinder base 100 by being resisted against stop collar 800
It coincides.Meanwhile one end close to the first lens 200 of Contrary compensation loose collar 700, i.e. positive stop end 710, pass through secure component
It is fixedly arranged on movable end 620, in other embodiments, the two can also be fixed by modes such as welding, herein not to the present invention
Protection scope rise restriction effect.In the present embodiment, the outer surface of positive stop end 710 is additionally provided with a locating ring 730, locating ring
730 outer surface is tight against the inner surface of main lens cylinder base 100, and locating ring 730 can cooperate with stop collar 800, so that instead
When moving to compensation loose collar 700, remain that the axis of Contrary compensation loose collar 700 can be with the axis of main lens cylinder base 100
Line coincides.Locating ring 730 and Contrary compensation loose collar 700 can be integrally formed part, can also be close-connected separation member.Instead
To one end far from the first lens 200 of compensation loose collar 700, i.e. connecting pin 720 is resisted against stop collar 800, and after being installed with
Camera lens cylinder base 300.At an elevated temperature, Contrary compensation layer 600 can drive Contrary compensation loose collar 700 to close to first
The direction of lens 200 is mobile, so that rear lens cylinder base 300 be driven also to realize and exist to close to the movement of the direction of the first lens 200
In the raised situation of temperature, the reduction of distance between the first lens 200 and the second lens 400；Mechanical passive athermal is realized,
Offset change caused by leading to refraction index changing because of temperature to change focusing plane.Upon a drop in temperature, Contrary compensation layer 600 is received
Contracting, movable end 620 bounce back to far from 200 direction of the first lens, drive Contrary compensation loose collar 700 to far from the first lens 200
Direction is mobile, so that being connected to the rear lens cylinder base 300 of the connecting pin 720 of Contrary compensation loose collar 700 far from the first lens
200, to realize to the elongated of the distance between the first lens 200 and the second lens 400.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of laser radar athermal optical receiver assembly, the laser radar athermal optical receiver assembly includes main lens
Cylinder base, install the first lens in the main lens cylinder base, rear lens cylinder base and install in the rear lens cylinder base second
Lens, which is characterized in that the laser radar athermal optical receiver assembly further include:
The Contrary compensation layer extended from first lens to second lens, the Contrary compensation layer include far from described the
The fixing end of one lens, and close to the movable end of first lens, the fixing end is fixedly arranged on the main lens cylinder base；
The Contrary compensation loose collar extended from first lens to second lens, the Contrary compensation loose collar include solid
Set on the positive stop end of the movable end, and it is fixedly arranged on the connecting pin of the rear lens cylinder base；The rear lens cylinder base can be relative to
Axial movement of the main lens cylinder base along the rear lens cylinder base；
The coefficient of expansion of the Contrary compensation layer is greater than the coefficient of expansion of the Contrary compensation loose collar.
2. laser radar athermal optical receiver assembly as described in claim 1, which is characterized in that the main lens cylinder base
Inside is equipped with a cavity, and the Contrary compensation layer and the Contrary compensation loose collar are set to the cavity, the Contrary compensation layer
It is fixed on the inner surface of the main lens cylinder base.
3. laser radar athermal optical receiver assembly as claimed in claim 2, which is characterized in that the laser radar disappears heat
Poor optical receiver assembly further includes a stop collar, and the stop collar is embedded at the cavity；
One end of the stop collar is fixed on the main lens cylinder base；
The other end of the stop collar is fixed on the fixing end of the Contrary compensation layer.
4. laser radar athermal optical receiver assembly as claimed in claim 3, which is characterized in that the axis of the stop collar
It is overlapped with the axis of the main lens cylinder base；Inner surface of the outer surface of the connecting pin tight against the stop collar.
5. laser radar athermal optical receiver assembly as claimed in claim 4, which is characterized in that the Contrary compensation layer
Gap is equipped between inner surface and the outer surface of the Contrary compensation loose collar.
6. laser radar athermal optical receiver assembly as claimed in claim 4, which is characterized in that the expansion of the stop collar
Coefficient is less than the coefficient of expansion of the Contrary compensation layer.
7. laser radar athermal optical receiver assembly as described in claim 1, which is characterized in that the Contrary compensation activity
The material of ring is aluminium alloy, and the material of the Contrary compensation layer is nylon.
8. laser radar athermal optical receiver assembly as described in claim 1, which is characterized in that the main lens cylinder base
One end far from first lens, which is connected, detects cylinder base, and the inside of the detection cylinder base is equipped with the third lens, the rear lens
Cylinder base can be relative to the detection cylinder base along the axial movement of the rear lens cylinder base.
9. laser radar athermal optical receiver assembly as claimed in claim 8, which is characterized in that the detection cylinder base leans on
One end of nearly second lens radially opens up an opening, the opening be located at second lens and the third lens it
Between, optical filter box is installed in the opening.
10. laser radar athermal optical receiver assembly as claimed in claim 9, which is characterized in that the optical filter box
Including optical filter and frame, the optical filter is installed in the frame, and the frame is arranged in the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491288.5A CN110515056A (en) | 2018-05-21 | 2018-05-21 | Laser radar athermal optical receiver assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491288.5A CN110515056A (en) | 2018-05-21 | 2018-05-21 | Laser radar athermal optical receiver assembly |
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| CN110515056A true CN110515056A (en) | 2019-11-29 |
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| CN201810491288.5A Pending CN110515056A (en) | 2018-05-21 | 2018-05-21 | Laser radar athermal optical receiver assembly |
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