US PATENT SUBCLASS 250 / 331
.~ Including liquid crystal detector

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

330  DF  INFRARED-TO-VISIBLE IMAGING {4}
331.~ Including liquid crystal detector

DEFINITION

Classification: 250/331

(under subclass 330) Subject matter wherein the infrared conversion means comprises a liquid crystalline material in layer form having an optical property that is changed in the infrared image areas.