US PATENT SUBCLASS 250 / 201.9
.~.~ Light beam wavefront phase adaptation

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
201.1  DF  .~ Photocell controls its own optical systems {8}
201.9.~.~ Light beam wavefront phase adaptation

DEFINITION

Classification: 250/201.9

Light beam wavefront phase adaptation:

(under subclass 201.1) Subject matter in which the phases of light waves are sensed and compared, and their sum or difference is used to control the optical system.