US PATENT SUBCLASS 250 / 487.1
.~.~ With optical member of material to directly modify luminous energy

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

472.1  DF  INVISIBLE RADIATION RESPONSIVE NONELECTRIC SIGNALLING {4}
483.1  DF  .~ Luminescent device {4}
487.1.~.~ With optical member of material to directly modify luminous energy {1}
488.1  DF  .~.~.~> Plural planar layer type

DEFINITION

Classification: 250/487.1

With optical member of material to directly modify luminous energy:

(under subclass 483.1) Subject matter wherein the structure additionally includes a material or a member having an optical property to control or modify the luminous energy emitted by the luminous material.