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US 5,293,265 AGranted
Real time variable laser beam spinner
AssigneeGeneral Electric Company
InventorsStephen Aleshin, Lorne A. Weeter
Life of this patent
Estimating the term…
Abstract
A real time variable laser beam spinner, wherein a manual or programmable actuator angularly displaces a mirror or optical flat during rotation in order to follow the instantaneous spin diameter requirements associated with a workpiece, whereby a variable effective spin diameter of the beam results without interrupting the work process.
Claims15
A real time variable laser beam spinning apparatus comprising;
- optical means adapted to deflect an incident laser beam when said optical means is tilted at a predetermined angle with respect to said incident beam;
- means coupled to said optical means for imparting a rotational movement to said optical means about an axis non-parallel to a plane of said optical means;
- and
- means coupled to said optical means for applying a predetermined and variable tilted position to said optical means during rotation, said tilted position applying means including displaceable means coupled to said optical means;
- and
- control means coupled to said displaceable means for displacing said displaceable means for a predetermined tilted distance.
3 more elements
A real time variable laser beam spinning apparatus, comprising:
- a reflector to reflect an incident laser beam;
- a base plate, said reflector being pivotally coupled to said base plate to position said reflector at a predetermined angle with respect to the incident laser beam;
- a motor with a drive shaft coupled to said base plate to rotate said reflector about an axis non-parallel to said reflector;
- and
- means for pivoting said reflector at the predetermined angle and for variably pivoting said reflector during rotation thereof.
2 more elements
A real time variable laser beam spinning apparatus, comprising:
- a beam tube for enclosing a laser beam;
- a laser transparent optical flat disposed in said beam tube to deflect the laser beam when said optical flat is tilted at a predetermined tilt angle with respect to the laser beam;
- means for rotating said optical flat about an axis non-parallel to a plane of said optical flat;
- and
- means for applying and varying said predetermined tilt angle during rotation of said optical flat to cause the laser beam to follow a substantially circular shaped path.
2 more elements
Dependencies are inferred from the claim text.