Wide-angle MEMS-based imaging lidar by decoupled scan axes

Brandon Hellman, Adley Gin, Braden Smith, Young Sik Kim, Guanghao Chen, Paul Winkler, Phillip McCann, Yuzuru Takashima

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


We present an optical architecture for a scanning lidar in which a digital micromirror device (DMD) is placed at an intermediate image plane in a receiver to decouple the trade-offs between scan angle, scan speed, and aperture size of the lidar’s transmitter and receiver. In the architecture, the transmitter with a galvo mirror and the receiver with a DMD scan the horizontal and vertical fields of view, respectively, to enable an increased field of view of 50, centimeter transmitter beam diameter, and video frame rate range finding captures. We present our optimized system and discuss the adjustable parameter trade-offs.

Original languageEnglish (US)
Pages (from-to)28-37
Number of pages10
JournalApplied optics
Issue number1
StatePublished - Jan 1 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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