CN208902906U - Shading piece, the lens group with light-shielding structure and laser radar - Google Patents

Shading piece, the lens group with light-shielding structure and laser radar Download PDF

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Publication number
CN208902906U
CN208902906U CN201821434234.7U CN201821434234U CN208902906U CN 208902906 U CN208902906 U CN 208902906U CN 201821434234 U CN201821434234 U CN 201821434234U CN 208902906 U CN208902906 U CN 208902906U
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China
Prior art keywords
lens group
light shielding
shielding part
lens
light
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CN201821434234.7U
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Chinese (zh)
Inventor
王瑞
向少卿
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Hesai Photonics Technology Co Ltd
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Hesai Photonics Technology Co Ltd
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Abstract

The utility model provides a kind of shading piece, lens group and laser radar with light-shielding structure, wherein, a kind of shading piece, including the first light shielding part and interconnecting piece, first light shielding part and interconnecting piece are in the first default angle, and the first light shielding part is extended with the first preset height to the direction far from interconnecting piece.A kind of lens group with light-shielding structure, including the first lens group, the second lens group and shading piece, the first lens group and the second lens group are disposed adjacent, and the first lens group includes at least one optical lens, optical lens has first surface, the first light shielding part covering part first surface.The utility model shading piece structure is simple, it is easily assembled into existing laser radar, reduces production and research and development cost, and there is the utility model the lens group of shading piece to be used for laser radar, the influence that stray light can be reduced avoids the generation of laser radar ghost or trailing phenomenon.

Description

Shading piece, the lens group with light-shielding structure and laser radar
Technical field
The utility model relates to technical field of environmental perception, in particular to a kind of shading piece, the lens with light-shielding structure Group and laser radar.
Background technique
In automatic Pilot technology, it is autonomous driving vehicle peace that context aware systems, which are basis and a vital ring, The guarantee of full property and intelligence, in environment sensing sensor laser radar reliability, investigative range, in terms of have There is incomparable advantage.Laser radar by emitting and receiving laser beam, analysis laser encounter after target object when turning back Between, calculate the relative distance of target object and vehicle.
The all multicomponent devices for including in laser radar, wherein transmitting-receiving lens group is the important devices of laser radar.Laser thunder Up to the emitted lens group directive target to be measured of detection light emitted by light source, receiving lens group receives anti-through target to be measured The echo-signal penetrated.During the work time, the improper outgoing of some stray lights in system encounters close strong anti-of distance to laser radar Can all normally echo-signal be impacted by penetrating target to be measured, phenomena such as ghost, hangover such as occurred, influenced laser radar Ranging and imaging precision.In addition, sometimes because in lens barrel, at lensed endface unnecessary reflection, deviation, diffusion situations such as also can Phenomena such as dual imaging, hot spot occurs.
Utility model content
In order to solve the above technical problems, the utility model first aspect discloses a kind of shading piece for laser radar, Including the first light shielding part and interconnecting piece, first light shielding part and the interconnecting piece are in the first default angle, first shading Portion is extended with the first preset height to the direction far from the interconnecting piece.
As an implementation, the shading piece further includes the second light shielding part, first light shielding part and described second The first pre-determined distance is spaced between light shielding part;Second light shielding part and the interconnecting piece are in the second default angle, and to separate The direction of the interconnecting piece is extended with the second preset height.
Further, second light shielding part is equipped with the first auxiliary light shielding part far from one end of the interconnecting piece, and described the One auxiliary light shielding part and second light shielding part are in the default angle of third.
Preferably, the interconnecting piece has the hollowed out area of perforation.
Further, first light shielding part and the second light shielding part are laminated structure.
Preferably, the shading piece is an integral molding structure.
The utility model second aspect provides a kind of lens group with light-shielding structure, including the first lens group, second are thoroughly Microscope group and shading piece described above,
First lens group and second lens group are disposed adjacent, and first lens group includes at least one optics Lens, the optical lens have first surface, first surface described in the first light shielding part covering part.
As an implementation, the shading piece includes the second light shielding part, and second light shielding part is located at described first Between lens group and second lens group.
Further, first light shielding part is extended with inner edge, the inner edge and institute close to the side of the first surface It states between first surface fitting or is separated with the second pre-determined distance.
The utility model third aspect discloses a kind of laser radar, comprising:
Rotor has lens mounting portion,
Lens group described above, the lens group are installed on the lens mounting portion.
Further, first lens group includes the first lens barrel and at least one diversing lens, and the diversing lens are solid Due in first lens barrel;
Second lens group includes the second lens barrel and at least one receiving lens, and the receiving lens are fixed on described the In two lens barrels.
Preferably, the shading piece is fixed between the first lens barrel and the second lens barrel by connector.
By adopting the above technical scheme, shading piece described in the utility model has the following beneficial effects:
1) shading piece structure described in the utility model is simple, is easily assembled into existing laser radar, reduce production and Cost is researched and developed, and effectively improves the scanning accuracy of laser radar;
2) there is the utility model the lens group of shading piece to be used for laser radar, can reduce the influence of stray light, avoid The generation of laser radar ghost or trailing phenomenon.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the stereoscopic schematic diagram of 1 shading piece of the utility model embodiment;
Fig. 2 is the stereoscopic schematic diagram of 1 lens group of the utility model embodiment;
Fig. 3 is the stereoscopic schematic diagram of 2 shading piece of the utility model embodiment;
Fig. 4 is the stereoscopic schematic diagram of 2 lens group of the utility model embodiment;
It remarks additionally below to attached drawing:
The first light shielding part of 1-;The inner edge 11-;2- interconnecting piece;The hollowed out area 21-;The first lens group of 3-;31- optical lens; 311- first surface;The first lens barrel of 32-;33- diversing lens;The second lens group of 4-;The second lens barrel of 41-;42- receiving lens;5- Second light shielding part;51- first assists light shielding part.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work Under every other embodiment obtained, fall within the protection scope of the utility model.
" one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the utility model A particular feature, structure, or characteristic in formula.In the description of the present invention, it should be understood that term " on ", "lower", The orientation or positional relationship of the instructions such as "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technical characteristic Quantity." first " is defined as a result, the feature of " second " can be expressed or that imply includes one or more spy Sign.Moreover, term " first ", " second " etc. are to be used to distinguish similar objects, without specific sequentially or first for describing Order afterwards.It should be understood that the data used in this way are interchangeable under appropriate circumstances, so as to the utility model described herein Embodiment can be performed in other sequences than those illustrated or described herein.
Embodiment 1:
In conjunction with reference Fig. 1 and Fig. 2, the utility model embodiment 1 provides a kind of shading piece for laser radar, including One light shielding part 1 and interconnecting piece 2, first light shielding part 1 are in the first default angle, first light shielding part 1 with the interconnecting piece 2 The first preset height is extended with to the direction far from the interconnecting piece 2.
In possible embodiment, first light shielding part 1 can be laminated structure.
In possible embodiment, the shading piece can be an integral molding structure.
In possible embodiment, first light shielding part 1 can tilt certain angle with the interconnecting piece 2 or hang down It is direct-connected to connect.
The interconnecting piece 2 is laminated structure, and concrete shape can be wedge shape, rectangle, semicircular arc-shaped or other abnormity Any one or the combination of several of them.
First light shielding part, 1 part, which connect one end with the interconnecting piece 2, can also be extended with inner edge 11.
In possible embodiment, the material of first light shielding part 1 is by light-proof material or first shading The surface in portion 1 is equipped with lighttight film plating layer.
In conjunction with reference Fig. 1 and Fig. 2, the utility model embodiment 1 also provides a kind of lens group with light-shielding structure, including First lens group 3, the second lens group 4 and shading piece described above, wherein the first lens group 3 is diversing lens group, second thoroughly Microscope group 4 is receiving lens group.First lens group 3 and second lens group 4 are disposed adjacent, and first lens group 3 is wrapped At least one optical lens 31 is included, the optical lens 31 has first surface 311, the 1 covering part institute of the first light shielding part State first surface 311.
In this embodiment, covering part refers to that the first light shielding part 1 of shading piece partly blocks optical lens 31, covering Mode includes the coverage mode that fitting contact covering or is non-contactly closer to.Specifically, first light shielding part 1 is close to institute The side for stating first surface 311 is extended with inner edge 11, is bonded between the inner edge 11 and the first surface 311 or is separated with Two pre-determined distances.
The profile of the inner edge 11 is arc, positive falcate, negative meniscus, rectangle, trapezoidal or triangle, in possible reality It applies in mode, the profile of the inner edge 11 can also be other polymorphic structures.
In conjunction with reference Fig. 1 and Fig. 2, the utility model embodiment 1 also provides a kind of laser radar, comprising:
Rotor has lens mounting portion,
Lens group described above, the lens group are installed on the lens mounting portion.
In possible embodiment, first lens group 3 includes the first lens barrel 32 and at least one diversing lens 33, The diversing lens 33 are fixed in first lens barrel 32;
Second lens group 4 includes the second lens barrel 41 and at least one receiving lens 42, and the receiving lens 42 are fixed In in second lens barrel 41.
In possible embodiment, the shading piece can by the rotor of connector and laser radar connect or with it is saturating The lens barrel of microscope group connects, for reducing the influence of laser radar stray light.Preferably, the shading piece is fixed on by connector Between first lens barrel 32 and the second lens barrel 41.
In possible embodiment, the laser radar can also include light insulation pad (not shown), described every light Plate is set between first lens group 3 and second lens group 4, it is preferred that the light insulation pad can be from described first Extend described 311 a certain distance of first surface between lens group 3 and the second lens group 4.In possible embodiment, institute Stating light insulation pad can be fixed in the lens group with laser radar integrated molding or light insulation pad prepackage.
Embodiment 2:
In conjunction with reference Fig. 3 and Fig. 4, the utility model embodiment 2 provides a kind of shading piece for laser radar, including One light shielding part 1 and interconnecting piece 2, first light shielding part 1 are in the first default angle, first light shielding part 1 with the interconnecting piece 2 The first preset height is extended with to the direction far from the interconnecting piece 2.The shading piece further includes the second light shielding part 5, and described The first pre-determined distance is spaced between one light shielding part 1 and second light shielding part 5, second light shielding part 5 is in the interconnecting piece 2 Second default angle, and the second preset height is extended with to the direction far from the interconnecting piece 2.
In possible embodiment, first light shielding part 1 can tilt certain angle with the interconnecting piece 2 or hang down It is direct-connected to connect.Second light shielding part 5 and the interconnecting piece 2 can also tilt certain angle or vertical connect.Preferably, described First default angle and the second default angle are 90 degree.
The interconnecting piece 2 is laminated structure, and concrete shape can be wedge shape, rectangle, semicircular arc-shaped or other abnormity Any one or the combination of several of them.
First light shielding part 1, which connect one end part with the interconnecting piece 2, can also be extended with inner edge 11.
In possible embodiment, the material of first light shielding part 1 is by light-proof material or first shading The surface in portion 1 is equipped with lighttight film plating layer.
In possible embodiment, second light shielding part 5 is equipped with the first auxiliary far from one end of the interconnecting piece 2 and hides Light portion 51, the first auxiliary light shielding part 51 and second light shielding part 5 preset angle in third.The first auxiliary light shielding part 51 between first light shielding part 1 and second light shielding part 5, the first auxiliary light shielding part 51 and second shading Portion 5 can tilt certain angle or vertical connection, it is preferred that it is 90 degree that the third, which presets angle,.
In possible embodiment, the interconnecting piece 2 has the hollowed out area 21 of perforation.Alternatively, the first light shielding part 1 has There is the hollowed out area of perforation, alternatively, there is the connecting place of the first light shielding part 1 and interconnecting piece the hollowed out area of perforation (not show in figure Out).The interconnecting piece 2 is laminated structure, and concrete shape can appointing for wedge shape, rectangle, semicircular arc-shaped or other abnormity The combination for one or more of anticipating.
In possible embodiment, first light shielding part 1 and the second light shielding part 5 are laminated structure.
In possible embodiment, the material of first light shielding part 1 and second light shielding part 5 is by impermeable finish Material, alternatively, the surface of first light shielding part 1 and second light shielding part 5 is equipped with lighttight film plating layer.
In possible embodiment, the shading piece can be an integral molding structure.
In possible embodiment, first light shielding part 1, which connect one end part with the interconnecting piece 2, to be extended There is inner edge 11.
In conjunction with reference Fig. 3 and Fig. 4, the utility model embodiment 2 also provides a kind of lens group with light-shielding structure, including First lens group 3, the second lens group 4 and shading piece described above, wherein the first lens group 3 is diversing lens group, second thoroughly Microscope group 4 is receiving lens group.
First lens group 3 and second lens group 4 are disposed adjacent, and first lens group 3 includes at least one Optical lens 31, the optical lens 31 have first surface 311, first surface described in 1 covering part of the first light shielding part 311。
In this embodiment, covering part refers to that the first light shielding part 1 of shading piece partly blocks optical lens 31, covering Mode includes the coverage mode that fitting contact covering or is non-contactly closer to.Specifically, first light shielding part 1 is close to institute The side for stating first surface 311 is extended with inner edge 11, is bonded between the inner edge 11 and the first surface 311 or is separated with Two pre-determined distances.
The profile of the inner edge 11 is arc, positive falcate, negative meniscus, rectangle, trapezoidal or triangle, in possible reality It applies in mode, the profile of the inner edge 11 can also be other polymorphic structures.
In conjunction with reference Fig. 3 and Fig. 4, the utility model embodiment 2 also provides a kind of laser radar, comprising:
Rotor has lens mounting portion,
Lens group described above, the lens group are installed on the lens mounting portion.
In possible embodiment, first lens group 3 includes the first lens barrel 32 and at least one diversing lens 33, The diversing lens 33 are fixed in first lens barrel 32;
Second lens group 4 includes the second lens barrel 41 and at least one receiving lens 42, and the receiving lens 42 are fixed In in second lens barrel 41.
In possible embodiment, the shading piece can by the rotor of connector and laser radar connect or with it is saturating The lens barrel of microscope group connects, for reducing the influence of laser radar stray light.Preferably, the shading piece is fixed on by connector Between first lens barrel 32 and the second lens barrel 41.Specifically, second light shielding part 5 is in the hair in possible embodiment The projection of plane is between first lens group 3 and second lens group 4 where penetrating 33 focal plane of lens.Alternatively, institute The projection for stating the second light shielding part 5 plane where perpendicular to 33 optical axis of diversing lens is located at first lens group 3 and institute It states between the second lens group 4.
In possible embodiment, the laser radar can also include light insulation pad (not shown), described every light Plate is set between first lens group 3 and second lens group 4, it is preferred that the light insulation pad can be from described first Extend between lens group 3 and the second lens group 4 and is connected to the shading piece.In possible embodiment, the light insulation pad can To be fixed in the lens group with laser radar integrated molding or light insulation pad prepackage.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (12)

1. a kind of shading piece, it to be used for laser radar, it is characterised in that: including the first light shielding part (1) and interconnecting piece (2), described the One light shielding part (1) and the interconnecting piece (2) are in the first default angle, and first light shielding part (1) is to far from the interconnecting piece (2) Direction be extended with the first preset height.
2. shading piece according to claim 1, which is characterized in that the shading piece further includes the second light shielding part (5), described Be spaced the first pre-determined distance between first light shielding part (1) and second light shielding part (5), second light shielding part (5) with it is described Interconnecting piece (2) is in the second default angle, and is extended with the second preset height to the direction far from the interconnecting piece (2).
3. shading piece according to claim 2, which is characterized in that on the interconnecting piece (2) or first light shielding part (1) The upper hollowed out area (21) with perforation.
4. shading piece according to claim 2, which is characterized in that second light shielding part (5) is far from the interconnecting piece (2) One end be equipped with towards first light shielding part (1) extends first auxiliary light shielding part (51), it is described first assist light shielding part It (51) is in the second default angle with second light shielding part (5).
5. shading piece according to claim 4, which is characterized in that first light shielding part (1) and the second light shielding part (5) are Laminated structure.
6. shading piece according to claim 5, which is characterized in that the shading piece is an integral molding structure.
7. a kind of lens group with light-shielding structure, which is characterized in that including the first lens group (3), the second lens group (4) and such as Shading piece described in claim 1-5 any one,
First lens group (3) and second lens group (4) are disposed adjacent, and first lens group (3) includes at least one A optical lens (31), the optical lens (31) have first surface (311), the first light shielding part (1) covering part institute State first surface (311).
8. the lens group according to claim 7 with light-shielding structure, which is characterized in that the shading piece includes the second screening Light portion (5), second light shielding part (5) is between first lens group (3) and second lens group (4).
9. the lens group according to claim 7 with light-shielding structure, which is characterized in that first light shielding part (1) is leaned on The side of the nearly first surface (311) is extended with inner edge (11), is pasted between the inner edge (11) and the first surface (311) It closes or is separated with the second pre-determined distance.
10. a kind of laser radar characterized by comprising
Rotor has lens mounting portion,
Lens group as described in claim 7-9 any one, the lens group are installed on the lens mounting portion.
11. laser radar according to claim 10, which is characterized in that first lens group (3) includes the first lens barrel (32) it is fixed in first lens barrel (32) at least one diversing lens (33), the diversing lens (33);
Second lens group (4) includes the second lens barrel (41) and at least one receiving lens (42), the receiving lens (42) It is fixed in second lens barrel (41).
12. laser radar described in 0 or 11 according to claim 1, which is characterized in that the shading piece is fixed on by connector Between first lens barrel (32) and the second lens barrel (41).
CN201821434234.7U 2018-09-03 2018-09-03 Shading piece, the lens group with light-shielding structure and laser radar Active CN208902906U (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108873125A (en) * 2018-09-03 2018-11-23 上海禾赛光电科技有限公司 Shading piece, the lens group with light-shielding structure and laser radar
USRE48490E1 (en) 2006-07-13 2021-03-30 Velodyne Lidar Usa, Inc. High definition LiDAR system
US10983218B2 (en) 2016-06-01 2021-04-20 Velodyne Lidar Usa, Inc. Multiple pixel scanning LIDAR
US11073617B2 (en) 2016-03-19 2021-07-27 Velodyne Lidar Usa, Inc. Integrated illumination and detection for LIDAR based 3-D imaging
US11082010B2 (en) 2018-11-06 2021-08-03 Velodyne Lidar Usa, Inc. Systems and methods for TIA base current detection and compensation
US11137480B2 (en) 2016-01-31 2021-10-05 Velodyne Lidar Usa, Inc. Multiple pulse, LIDAR based 3-D imaging
US11294041B2 (en) 2017-12-08 2022-04-05 Velodyne Lidar Usa, Inc. Systems and methods for improving detection of a return signal in a light ranging and detection system
US11703569B2 (en) 2017-05-08 2023-07-18 Velodyne Lidar Usa, Inc. LIDAR data acquisition and control
US11796648B2 (en) 2018-09-18 2023-10-24 Velodyne Lidar Usa, Inc. Multi-channel lidar illumination driver
US11808891B2 (en) 2017-03-31 2023-11-07 Velodyne Lidar Usa, Inc. Integrated LIDAR illumination power control
US11885958B2 (en) 2019-01-07 2024-01-30 Velodyne Lidar Usa, Inc. Systems and methods for a dual axis resonant scanning mirror
US11933967B2 (en) 2019-08-22 2024-03-19 Red Creamery, LLC Distally actuated scanning mirror
US12123950B2 (en) 2021-08-05 2024-10-22 Red Creamery, LLC Hybrid LADAR with co-planar scanning and imaging field-of-view

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE48688E1 (en) 2006-07-13 2021-08-17 Velodyne Lidar Usa, Inc. High definition LiDAR system
USRE48490E1 (en) 2006-07-13 2021-03-30 Velodyne Lidar Usa, Inc. High definition LiDAR system
USRE48491E1 (en) 2006-07-13 2021-03-30 Velodyne Lidar Usa, Inc. High definition lidar system
USRE48503E1 (en) 2006-07-13 2021-04-06 Velodyne Lidar Usa, Inc. High definition LiDAR system
USRE48504E1 (en) 2006-07-13 2021-04-06 Velodyne Lidar Usa, Inc. High definition LiDAR system
USRE48666E1 (en) 2006-07-13 2021-08-03 Velodyne Lidar Usa, Inc. High definition LiDAR system
US11698443B2 (en) 2016-01-31 2023-07-11 Velodyne Lidar Usa, Inc. Multiple pulse, lidar based 3-D imaging
US11137480B2 (en) 2016-01-31 2021-10-05 Velodyne Lidar Usa, Inc. Multiple pulse, LIDAR based 3-D imaging
US11073617B2 (en) 2016-03-19 2021-07-27 Velodyne Lidar Usa, Inc. Integrated illumination and detection for LIDAR based 3-D imaging
US11550056B2 (en) 2016-06-01 2023-01-10 Velodyne Lidar Usa, Inc. Multiple pixel scanning lidar
US11808854B2 (en) 2016-06-01 2023-11-07 Velodyne Lidar Usa, Inc. Multiple pixel scanning LIDAR
US11874377B2 (en) 2016-06-01 2024-01-16 Velodyne Lidar Usa, Inc. Multiple pixel scanning LIDAR
US11561305B2 (en) 2016-06-01 2023-01-24 Velodyne Lidar Usa, Inc. Multiple pixel scanning LIDAR
US10983218B2 (en) 2016-06-01 2021-04-20 Velodyne Lidar Usa, Inc. Multiple pixel scanning LIDAR
US11808891B2 (en) 2017-03-31 2023-11-07 Velodyne Lidar Usa, Inc. Integrated LIDAR illumination power control
US11703569B2 (en) 2017-05-08 2023-07-18 Velodyne Lidar Usa, Inc. LIDAR data acquisition and control
US11294041B2 (en) 2017-12-08 2022-04-05 Velodyne Lidar Usa, Inc. Systems and methods for improving detection of a return signal in a light ranging and detection system
CN108873125B (en) * 2018-09-03 2023-11-28 上海禾赛科技有限公司 Shading piece, lens group with shading structure and laser radar
CN108873125A (en) * 2018-09-03 2018-11-23 上海禾赛光电科技有限公司 Shading piece, the lens group with light-shielding structure and laser radar
US11796648B2 (en) 2018-09-18 2023-10-24 Velodyne Lidar Usa, Inc. Multi-channel lidar illumination driver
US11082010B2 (en) 2018-11-06 2021-08-03 Velodyne Lidar Usa, Inc. Systems and methods for TIA base current detection and compensation
US11885958B2 (en) 2019-01-07 2024-01-30 Velodyne Lidar Usa, Inc. Systems and methods for a dual axis resonant scanning mirror
US11933967B2 (en) 2019-08-22 2024-03-19 Red Creamery, LLC Distally actuated scanning mirror
US12123950B2 (en) 2021-08-05 2024-10-22 Red Creamery, LLC Hybrid LADAR with co-planar scanning and imaging field-of-view

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