US PATENT SUBCLASS 359 / 291
.~.~.~ Shape or contour of light control surface altered

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  DF  .~.~ By changing physical characteristics (e.g., shape, size or contours) of an optical element {3}
291.~.~.~ Shape or contour of light control surface altered {3}
292  DF  .~.~.~.~> Light control surface forms image on projected light beam {1}
294  DF  .~.~.~.~> Using photoconductive layer
295  DF  .~.~.~.~> Having multiple electrodes

DEFINITION

Classification: 359/291

Shape or contour of light control surface altered:

(under subclass 290) Subject matter wherein the light property is controlled by means of a light control surface which is temporarily altered or modified in some way so as to produce distortions in the surface contours which differ significantly from the normal or unmodified surface contours.