US PATENT SUBCLASS 216 / 25
.~ Phosphor screen

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


216 /   HD   ETCHING A SUBSTRATE: PROCESSES

24  DF  FORMING OR TREATING OPTICAL ARTICLE {2}
25.~ Phosphor screen

DEFINITION

Classification: 216/25

Phosphor screen:

(under subclass 24) Process wherein the optical article is a screen containing phosphor elements, these elements phosphorescing (continuous emission of light) when stimulated by an external energy source which is usually radiation.

SEE OR SEARCH CLASS

250, Radiant Energy,

458.1+, for luminophor irradiation, and subclasses 483.1+ for luminescent device.

252, Compositions,

301.16, for an organic luminescent material containing composition, subclass 301.4 for an inorganic luminescent composition.

313, Electric Lamp and Discharge Devices,

525+, for a device containing a phosphor screen.