US PATENT SUBCLASS 365 / 119
.~ Color centers


Current as of: June, 1999
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365 /   HD   STATIC INFORMATION STORAGE AND RETRIEVAL

106  DF  RADIANT ENERGY {12}
119.~ Color centers


DEFINITION

Classification: 365/119

Color centers:

(under subclass 106) Subject matter wherein the memory material is a crystal containing local imperfections, which will absorb (or generate) light of a particular frequency (color) depending on the energy level of the electron at the imperfection.

SEE OR SEARCH CLASS

349, Liquid Crystal Cells, Elements and Systems,

69, 71 for color liquid crystal material used in light control.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,

541+, for radiation sensitive color changing composition.