LIDAR LASER SCANNING SYSTEM

A laser scanner comprising two single-axis MEMS scanning mirrors utilizing an optical relay configuration between the mirrors to eliminate beam displacement on the second mirror is disclosed. The lack of physical beam displacement on the second scanning mirror, independent of the first mirrors'...

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Bibliographische Detailangaben
Hauptverfasser:	Lewis, Robert A, Bietry, Joseph R
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A laser scanner comprising two single-axis MEMS scanning mirrors utilizing an optical relay configuration between the mirrors to eliminate beam displacement on the second mirror is disclosed. The lack of physical beam displacement on the second scanning mirror, independent of the first mirrors' scan angle, eliminates the need to elongate the second mirror to accommodate beam spot movement. This configuration enables the combination and injection of two angularly offset laser beam sources into the horizontal axis mirror to effectively double angular scan coverage. With two or more beams spatially combined and time interleaved, an increased effective scanning rate or an increased number of accumulated pulses per measurement dwell point can be achieved.