Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1997-05-23
1999-05-11
Ramsey, Kenneth J.
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
216 2, 445 24, H01J9/24
Patent
active
059030992
ABSTRACT:
A fabrication system and method of fabrication for producing microelectromechanical devices such as field-effect displays using thin-film technology. A spacer is carried at its proximal end on the surface of a substrate having field-effect emitters with the spacer being enabled for tilting movement from a nested position to a deployed position which is orthogonal to the plane of the substrate. An actuator is formed with one end connected with the substrate and another end connected with spacer. The actuator is made of a shape memory alloy material which contracts when heated through the material's phase-change transition temperature. Contraction of the actuator exerts a pulling force on the spacer which is tilted to the deployed position. A plurality of the spacers are distributed over the area of the display. A glass plate having a phosphor-coated surface is fitted over the distal ends of the deployed spacer.
REFERENCES:
patent: 5061914 (1991-10-01), Busch et al.
patent: 5734224 (1998-03-01), Tagawa et al.
patent: 5795206 (1998-08-01), Cathey et al.
Busta Heinz H.
Johnson A. David
Nowicki Ronald S.
Ramsey Kenneth J.
TiNi Alloy Company
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