Details

Autor(en) / Beteiligte

• Kang, Eunmo
• Choi, Heejoo
• Hellman, Brandon
• Rodriguez, Joshua
• Smith, Braden
• Deng, Xianyue
• Liu, Parker
• Lee, Ted
• Evans, Eric
• Hong, Yifan
• Guan, Jiafan
• Luo, Chuan
• Takashima, Yuzuru

Titel

All-MEMS Lidar Using Hybrid Optical Architecture with Digital Micromirror Devices and a 2D-MEMS Mirror

Ist Teil von

• Micromachines (Basel), 2022-09, Vol.13 (9), p.1444

Ort / Verlag

Basel: MDPI AG

Erscheinungsjahr

2022

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• In a lidar system, replacing moving components with solid-state devices is highly anticipated to make a reliable and compact lidar system, provided that a substantially large beam area with a large angular extent as well as high angular resolution is assured for the lidar transmitter and receiver. A new quasi-solid-state lidar optical architecture employs a transmitter with a two-dimensional MEMS mirror for fine beam steering at a fraction of the degree of the angular resolution and is combined with a digital micromirror device for wide FOV scanning over 37 degree while sustaining a large aperture area of 140 mm squared. In the receiver, a second digital micromirror device is synchronized to the transmitter DMD, which enables a large FOV receiver. An angular resolution of 0.57°(H) by 0.23° (V) was achieved with 0.588 fps for scanning 1344 points within the field of view.