LASER SCANNER APPARATUS

摘要

The present invention relates to a reactionless, constant scanning velocity laser scanner having a scanning mirror and a counter-rotating mass trading kinetic energy as the mirror collides with the counter rotating mass rotating in opposite direction to reverse the direction of rotation of the mirror. The scanning mirror is rotatably mounted in a frame and spaced from a rotatably mounted counterweight such that in each direction of rotation the mirror will collide with the counterweight moving in the opposite direction of rotation. The counterweight has spring means thereon positioned to bump against the mirror in one direction and then the other direction of rotation to repel the mirror to cause a back and forth scanning motion in the mirror. The counterweight is moved by an actuator which replaces energy lost during scanning.

主权项

1. A laser scanner apparatus comprising:
a scanner frame; a scanning mirror rotatably mounted in said scanner frame; a counterweight rotatably mounted in said scanner frame in a predetermined spaced relationship to said rotatable scanning mirror, and aligned to collide with said scanning mirror in each direction of rotation of said counterweight and scanning mirror to repel and reverse the direction of rotation of said scanning mirror with each collision; and an actuator for moving said counterweight in a back and forth rotation for collision with said scanning mirror; whereby a laser scanner scanning mirror scanning motion is produced by an oscillating counterweight in each direction of rotation thereof.