US PATENT SUBCLASS 359 / 579
.~.~ By nonmovable driving element (e.g., piezoelectric, magnetostrictive)

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

577  DF  LIGHT INTERFERENCE {2}
578  DF  .~ Electrically or mechanically variable (e.g., tunable, adjustable) {1}
579.~.~ By nonmovable driving element (e.g., piezoelectric, magnetostrictive)

DEFINITION

Classification: 359/579

By nonmovable driving element (e.g., piezoelectric, magnetostrictive):

(under subclass 578) Subject matter including an element for causing motion of an optical interference element without itself moving.

(1) Note. Piezoelectric and magnetostrictive driving elements are classified in this subclass.