US PATENT SUBCLASS 359 / 290
.~.~ By changing physical characteristics (e.g., shape, size or contours) of an optical element

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}
290.~.~ By changing physical characteristics (e.g., shape, size or contours) of an optical element {3}
291  DF  .~.~.~> Shape or contour of light control surface altered {3}
296  DF  .~.~.~> Changing position or orientation of suspended particles
297  DF  .~.~.~> Light control surface formed or destroyed

DEFINITION

Classification: 359/290

By changing physical characteristics (e.g., shape, size or contours) of an optical element:

(under subclass 238) Subject matter wherein the light property is controlled by a substantial alteration in the optical characteristics of a light control surface or interface or by changing the physical shape, position, or orientation of a light control surface or interface in response to the modulating signal.

(1) Note. Any change in or to the light control surface or interface occur wholly within the region of the light path in which control is effected. The control surface or interface is neither totally nor partially inserted into nor removed from the light path.