Compact optical scanner driven by a resonant galvanometer

Details Compact optical scanner driven by a resonant galvanometer Compact optical scanner driven by a resonant galvanometer

1986-11-10

1988-08-09

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 66, G01D 530

Patent

active

047629940

ABSTRACT:
A compact optical scanner includes a base unit and a scan unit. The base unit includes an optical source such as a laser and an optical path directing a beam emitted by the laser to a scan mirror which is located in and supported by the scan unit. As the scan mirror rotates, the optical beam is reflected back to the base unit from which it is emitted as a beam scanning to and fro in a scan plane. The scan unit is supported by reference to the base unit such that the oscillation axis of the scan mirror is substantially and preferably parallel to the scan plane.

REFERENCES:
patent: 3693022 (1972-09-01), Dumast et al.
patent: 4178064 (1979-12-01), Mrdjen
patent: 4180307 (1979-12-01), Tateoka et al.
patent: 4213146 (1980-07-01), Maiman
patent: 4419676 (1983-12-01), Lenk et al.
patent: 4588887 (1986-05-01), Bailey et al.
patent: 4638156 (1987-01-01), Horikawa et al.

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