US PATENT SUBCLASS 396 / 249
.~.~ Electro-optical element

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

213  DF  EXPOSURE CONTROL CIRCUIT {23}
246  DF  .~ Shutter speed function only {6}
249.~.~ Electro-optical element

DEFINITION

Classification: 396/249

Electro-optical element:

(under subclass 246) Subject matter wherein the shutter is an electro-optical device (e.g., Kerr cell, liquid crystal device, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

457, for an electro-optical camera shutter.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

237+, for an electro-optical modulator per se.