Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-12-09
1987-12-22
Masinick, Michael A.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 63, 358231, H04N 574
Patent
active
047149566
ABSTRACT:
A method and an apparatus is disclosed for converting a plurality of electrical signals (14(a-c)) into a color visual display on a device (10). The device (10) comprises three CRT's (16(a-c)). Each CRT (16(a-c)) receives an electrical signal (14(a-c)), generates a beam of electrons (24(a-c)), modulates the beam of electrons (26(a-c)) and converts them into a beam of light (18(a-c)). The beams of light (18(a-c)) are focused and are delivered to impinge an optical mask (32) and to pass therethrough to impinge a photocathode screen (40) in an evacuated envelope (30). Within the envelope (30), spaced apart from the photocathode screen (40), is a segmented phosphor screen (42) with the phosphor screen (42) being defined by three different types of phosphor compositions in three different locations. Photoelectrons released from the photocathode (40) are accelerated and directed to impinge the phosphor screen (42).
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