US PATENT SUBCLASS 359 / 846
.~ Including specified control or retention of the shape of a mirror surface

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

838  DF  MIRROR {14}
846.~ Including specified control or retention of the shape of a mirror surface {3}
847  DF  .~.~> Membrane mirror in mechanical contact only at its edge
848  DF  .~.~> With structure to minimize internal mirror stress
849  DF  .~.~> Including a plurality of adjustable mirror supports

DEFINITION

Classification: 359/846

Including specified control or retention of the shape of a mirror surface:

(under subclass 838) Subject matter including structure for maintaining a precise shape of a reflective surface or for reversibly changing the shape of a reflective surface.