US PATENT SUBCLASS 359 / 241
.~.~.~ By actinic radiation (e.g., photochromic)

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

237  DF  OPTICAL MODULATOR {3}
238  DF  .~ Light wave temporal modulation (e.g., frequency, amplitude, etc.) {3}
240  DF  .~.~ Changing bulk optical parameter {5}
241.~.~.~ By actinic radiation (e.g., photochromic) {3}
242  DF  .~.~.~.~> Display device
243  DF  .~.~.~.~> Bistable device
244  DF  .~.~.~.~> Opto-optical device

DEFINITION

Classification: 359/241

By actinic radiation (e.g., photochromic):

(under subclass 240) Subject matter wherein an optical parameter of the light control element is changed by or in response to either the light to be controlled or a separate external source of optical radiation.