G - Physics – 02 – B
Patent
G - Physics
02
B
88/96.8
G02B 27/00 (2006.01) H04N 3/08 (2006.01)
Patent
CA 1164695
ABSTRACT OF THE INVENTION A system is disclosed for transforming a collimated beam of light, such as that generated by a laser, into a line scan or a raster image for projection onto a screen or other object. The laser beam is directed at a rotating mirror having a plurality of facets disposed at equal circumferential intervals around the mirror axis of rotation. The light reflected from the rotating mirror generates a first scanned reflected output beam. A first reflecting surface is aligned to receive the first scanned re- flected output beam and generates a second scanned reflected out- put beam. This second scanned reflected output beam passes through a first pivot vertex and is directed back onto the rotating mirror facets by a second reflecting surface to generate an angularly amplified output beam which scans a first plane. The angularly amplified output beam is directed through a second pivot vertex and is then deflected through a second plane which is oriented perpendicular to the first plane. The angularly amplified output beam which has been deflected through the first and second planes thereby projects a raster image on a screen.
395104
Lincoln Laser Co.
Ridout & Maybee Llp
LandOfFree
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