Patent Number: 6,311,001

Title: Microchannel plate having microchannels with funneled openings and method for manufacturing same

Abstract: A process for forming improved microchannel plates ("MCP") for use in image intensifier tubes, the MCPs providing improved signal to noise, and reduced image distortion. The improved MCPs are first conventionally formed from the fusion of a plurality of glass fibers into a solid rod, where each fiber has an acid etchable core and acid-resistant cladding. Individual plates are then sliced transversely from the rod and polished. The MCP is then partially chemically etched with an alkaline material. The MCP is next subjected to an acid bath that removes the cores, optionally followed by a hot strong alkali bath that removes additional acid resistant cladding from the glass. Microchannels having funnel-shaped open ends are thereby formed in the MCP which allows for more efficient and accurate photoelectron generation.

Inventors: Rosine; Steven David (Roanoke, VA)

Assignee: LTT Manufacturing Enterprises

International Classification: C03C 15/00 (20060101); C03C 11/00 (20060101); C03B 37/028 (20060101); C03B 37/02 (20060101); G02B 6/06 (20060101); G02B 6/08 (20060101); H01J 43/24 (20060101); H01J 43/00 (20060101); H01J 9/12 (20060101); G02B 006/04 ()

Expiration Date: 10/30/2018