3D LIDAR based on FPCB mirror

Tai, Trevor; Zuo, Haoyi; He, Siyuan

doi:10.1016/j.mechatronics.2021.102720

Cited by 10 publications

(17 citation statements)

References 21 publications

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“…Their innovative and low‐cost approach has the potential to greatly expand the accessibility and adoption of 3D LiDAR technology. [ 128 ]…”

Section: Laser Transmission and Challengesmentioning

confidence: 99%

“…Their innovative and low-cost approach has the potential to greatly expand the accessibility and adoption of 3D LiDAR technology. [128] Electromagnetic-driven scanning mirrors offer advantages over electrostatic and piezoelectric devices in terms of achieving larger and more linear rotation angles at lower drive voltages, albeit at the expense of higher power consumption. Nevertheless, the integration of actuators and rotational angle sensors for all scanning mirror types necessitates complex fabrication processes to enable closed-loop control of the scanning trajectory.…”

Section: Spinning and Mems Scanning Systemmentioning

confidence: 99%

“…Reproduced with permission. [30] Copyright 2021, Nature Publishing Group UK London [ 119] enhance scanning angle: [ 118] quasi-solid state MEMS Mirror enhance scanning angle: [ 127,156] enhance angular resolution: [ 121,158] process optimization: [ 122,128] biaxial design: [ 129] FPSA MEMS with silicon photonic [ 93,159] solid state silicon photonics (OPA) 2D scanning: [ 160] power consumption: [ 161] metasurface beam steering: [ 30,[162][163][164] FOV: [ 134,165] zoom function: [ 132,166] dynamical regulation: [ 164,167] metasurface with MEMS mirror: [ 132,168] metasurface with AOD: [ 134] LiDAR on chip silicon-integrated FMCW LiDAR: [ 153,155] multi-wavelength LiDAR: [ 156] meta-based LIDAR: [30] areas of the scene, enhancing the overall imaging quality and resolution. [156] In a recent investigation, J.…”

Section: Integrated Chip On Lidarsmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in Light Detection and Ranging: Optical Modulation Solutions and Novel Nanotechnologies

Chen,

Miao,

Hong

et al. 2023

Adv Quantum Tech

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Light detection and ranging (LiDAR) sensor is widely recognized as a critical component for accurate perception. However, there are a host of challenges that impede their performance, including low spatial resolution, high costs, large size, low reliability, and susceptibility to interference. It is challenging to overcome these issues using a single LiDAR module, necessitating the need for a review of current LiDAR technologies. The paper commences by introducing the fundamental principles of various laser rangefinders and discussing the optical modulation technologies used to prevent interference and ghost images. Next, the paper delves into the latest developments in laser technology, with a focus on enhancing the switching rate, compliance with eye safety regulations, miniaturization, and improving stability. One highly promising innovation is the photonic crystal surface emitting laser (PCSEL), a novel light source that boasts high‐speed, small divergence angles, and high‐power output. Finally, the paper discusses the advancements made in non‐solid‐state scanning and solid‐state scanning, such as improving stability, increasing scanning angles, and optimizing the manufacturing of mechanical and micro‐electromechanical systems (MEMS). Additionally, the paper highlights the recent advancements in nanotechnology, specifically metasurface technology, which offers superior capabilities such as beam deflection, enhanced field‐of‐view (FOV), and dynamic modulation.

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“…Their innovative and low‐cost approach has the potential to greatly expand the accessibility and adoption of 3D LiDAR technology. [ 128 ]…”

Section: Laser Transmission and Challengesmentioning

confidence: 99%

Section: Spinning and Mems Scanning Systemmentioning

confidence: 99%

Section: Integrated Chip On Lidarsmentioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in Light Detection and Ranging: Optical Modulation Solutions and Novel Nanotechnologies

Chen,

Miao,

Hong

et al. 2023

Adv Quantum Tech

View full text Add to dashboard Cite

show abstract

“…Thus, an improvement in the vertical angular resolution means the high cost of more transmitters and receivers. A multichannel LiDAR system in a self-driving car can cost up to USD 75,000 20 , making it the most expensive element in a self-driving car 9 . The current LiDAR solutions based on multichannel scanners are either with limited vertical resolution or costly.…”

Section: Introductionmentioning

confidence: 99%

Development of the high angular resolution 360° LiDAR based on scanning MEMS mirror

Yang

Liu

Chen

et al. 2023

Sci Rep

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Light detection and ranging (LiDAR) using various operational principles has been applied in many fields, e.g., robotics navigation, autonomous vehicles, unmanned aerial flyers, land surveying, etc. The multichannel LiDAR system is of great importance in the field of autonomous driving due to its larger field of view (FoV). However, the number of transceivers limits the vertical angular resolution of multichannel LiDAR systems and makes them costly. On the other hand, the emergence of microelectromechanical systems (MEMS) mirrors may provide a highly promising solution to a low-cost, high angular resolution LiDAR system. We have demonstrated a MEMS mirror-based 360° LiDAR system with high angular resolution and will present the detailed design process and obtained experimental results in this paper. With the combination of the MEMS mirror and a rotation platform for the LiDAR system, a 360° × 8.6° (horizontal × vertical) FoV was achieved. Compared with existing commercial multichannel 360° LiDAR systems, our system has 13.8 times better angular resolution than the Velodyne HDL-64 LiDAR sensor. The experimental results verified an excellent performance of 0.07° × 0.027° (horizontal × vertical) angular resolution, which enhances the panoramic scanning and imaging capability of the LiDAR system, potentially providing more accurate 3D scanning applications in areas such as autonomous vehicles, indoor surveying, indoor robotics navigation, etc.

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“…Recently, the industry has taken great interest in reducing the weight and space charge of the circuit boards used for signal transmission of the sensors [ 1 , 2 , 3 , 4 ]. Therefore, studies to solve this problem by replacing the regularly printed circuit boards (PCBs) with flexible printed circuit boards (FPCBs) are now drawing attention [ 5 , 6 , 7 , 8 , 9 ]. If the regular PCBs are replaced by FPCBs, fuel efficiency is expected to be improved, reducing the weight of circuit boards connected to the vehicle.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Microstrip Line with Asymmetric Arch Type Cross-Sectional Structure Using Micro Pattern Transfer Printing Method

Woo

Choi

et al. 2022

Sensors

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This paper presents the manufacturing procedure and electrical properties of a microstrip line on flexible printed circuit boards (FPCBs) fabricated using the micro pattern transfer printing (MPTP) method for millimeter wave band application. The MPTP method presented herein is compared to the conventional FPCB process based on the degree of insertion loss as it pertains to the cross-sectional shape of the formed microstrip line. Electromagnetic field simulations were performed to confirm that the cross-sectional arch shape fabricated by the MPTP process reduces insertion loss in the high-frequency band. Based on the simulation, the microstrip transmission line was optimized to a width of 217 µm and a length of 30 cm, fabricated on a 50 µm thick poly-cyclohexylene dimethylene terephthalate (PCT) substrate to measure the insertion loss. The insertion loss fabricated using the MPTP method is measured as 0.37 dB/cm at 10 GHz, while the conventional FPCB is measured as 0.66 dB/cm. Through the analysis, it was confirmed that the FPCBs manufactured by the MPTP process show lower insertion loss compared to the conventional FPCBs.

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3D LIDAR based on FPCB mirror

Cited by 10 publications

References 21 publications

Recent Advances in Light Detection and Ranging: Optical Modulation Solutions and Novel Nanotechnologies

Recent Advances in Light Detection and Ranging: Optical Modulation Solutions and Novel Nanotechnologies

Development of the high angular resolution 360° LiDAR based on scanning MEMS mirror

Analysis of Microstrip Line with Asymmetric Arch Type Cross-Sectional Structure Using Micro Pattern Transfer Printing Method

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