US PATENT SUBCLASS 349 / 61
.~ Particular illumination

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

56  DF  PARTICULAR STRUCTURE {7}
61.~ Particular illumination {4}
62  DF  .~.~> With integral optical element for guiding or distributing light from the light source {5}
68  DF  .~.~> With plural diverse light sources (e.g., for day and night)
69  DF  .~.~> Electroluminescent light source
70  DF  .~.~> Fluorescent light source {1}

DEFINITION

Classification: 349/61

Particular illumination:

(under subclass 56) Subject matter including specific

structure for providing light to the liquid crystal device.

(1) Note. This structure may use a special light source for the liquid crystal device or be structurally designed for use with ambient light.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices, appropriate subclasses for use of a particular illumination device in general.

315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for use of a particular illumination system in general.

362, Illumination, appropriate subclasses for illuminating devices in general.