Wide-angle MEMS-based imaging lidar by decoupled scan axes
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 23, 2019
- Source ID
- 10.1364/ao.59.000028
Entities
People
- Adley Gin
- Braden Smith
- Brandon Hellman
- Guanghao Chen
- Paul Winkler
- Phillip Mccann
- Young-sik Kim
- Yuzuru Takashima
Organizations
- Achievement Rewards for College Scientists Foundation
- Air Force Research Laboratory
- University of Arizona