US PATENT SUBCLASS 349 / 22
.~.~ By light beam heating (e.g., IR, laser, etc.)

Current as of: June, 1999
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349 /   HD   LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS

19  DF  PARTICULAR EXCITATION OF LIQUID CRYSTAL {6}
20  DF  .~ Thermal excitation {2}
22.~.~ By light beam heating (e.g., IR, laser, etc.)

DEFINITION

Classification: 349/22

By light beam heating (e.g., IR, laser, etc.):

(under subclass 20) Subject matter wherein the liquid crystal material exhibits an optical property change in response to thermal energy derived from incident light rays.

(1) Note. Included here are infrared light and laser beams which directly change the state of the liquid crystal.

(2) Note. Excluded from this subclass is light used for optically exciting the liquid crystal. For such excluded subject matter see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

24, for optical excitation of a liquid crystal cell.

SEE OR SEARCH CLASS

365, Static Information Storage and Retrieval,

108, for a memory for liquid crystal using a light beam.