George Oiye

US Patent:

55699782, Oct 29, 1996

Filed:

Apr 24, 1995

Appl. No.:

8/427688

Inventors:

George Oiye - Los Altos CA
Joseph R. Caruso - San Martin CA

Assignee:

ILC Technology, Inc. - Sunnyvale CA

International Classification:

H01J 6106

US Classification:

313631

Abstract:

An arc lamp comprises an electrode assembly with O-ring seals that seal in xenon gas within a glass tube envelope and shaped electrode that, together with a contoured tube geometry inside the glass tube envelope near the electrode, will aerodynamically redirect the supersonic forces of gas ignition to reduce the mechanical impact pulses that would otherwise ultimately work the electrode assembly out of the end of the glass the envelope.

US Patent:

58982701, Apr 27, 1999

Filed:

Apr 11, 1997

Appl. No.:

8/826985

Inventors:

George Oiye - Los Altos CA
Jose B Soberanes - San Jose CA

Assignee:

ILC Technology, Inc. - Sunnyvale CA

International Classification:

H01J 6104

US Classification:

313570

Abstract:

A pulsed high energy arc-tube flashlamp comprises a quartz flashlamp envelope that is about 2000 mm long and has an outside diameter of approximately forty-eight mm. Each end necks down to an outside diameter of about thirty-eight mm to accommodate an anode re-entrant seal assembly at one end and a cathode re-entrant seal assembly at the other end. Each anode and cathode comprises a beaded electrode rod of tungsten with an unusually large 0. 25 inch diameter. A reflective metal paint or white oxide paint is added to the end necks to improve the lamp starting characteristics and to protect the cassette mounting o-ring and lamp cable junction box from radiation. A TEFLON shrink sleeve is shrunk over each outside end of the flashlamp envelope and such provides a small amount of cushion for the lamp mounts in the laser cassette. The monocoque body structure does not need separate lamp mounting bases, and thus overall provides a mechanically simpler and superior structure that is far more reliable. The prior art demonstrates that necking down glass envelopes of lamps is common practice, but here such necking down is limited to that diameter which just suits the external mounting base requirements.