Joseph L Michael

US Patent:

50217186, Jun 4, 1991

Filed:

Feb 1, 1990

Appl. No.:

7/473511

Inventors:

Jakob Maya - Brookline MA
Joseph D. Michael - University Heights OH
Radomir Lagushenko - Brookline MA

Assignee:

GTE Products Corporation - Danvers MA

International Classification:

H01J 1700

US Classification:

315358

Abstract:

A negative glow discharge lamp including a light transmitting envelope having supported therein electrode means for establishing a negative glow discharge in the lamp. The fill material includes a metal-based gas such as sodium which, upon excitation thereof, directly emits visible light. The sodium has a resonance radiation in the visible part of the spectrum. The cathode is a hot cathode.

US Patent:

52668649, Nov 30, 1993

Filed:

Sep 18, 1992

Appl. No.:

7/949276

Inventors:

Joseph D. Michael - University Heights OH
Radomir Lagushenko - Brookline MA
Jakob Maya - Brookline MA
Oscar Biblarz - Carmel CA

Assignee:

GTE Products Corporation - Danvers MA

International Classification:

H01J 1720
H01J 6112

US Classification:

313639

Abstract:

A negative glow discharge lamp having improved efficacy enabled by reducing the anode work function by the introduction of a metal-based gas into the lamp envelope for absorption on the anode. The metal-based gas is preferably cesium but may also, for example, be sodium.

US Patent:

51202514, Jun 9, 1992

Filed:

Feb 11, 1991

Appl. No.:

7/653324

Inventors:

Joseph D. Michael - University Heights OH
Radomir Lagushenko - Brookline MA
Jakob Maya - Brookline MA

Assignee:

GTE Products Corporation - Danvers MA

International Classification:

H01J 938
H01J 6164
H01J 6120
H01J 6122

US Classification:

445 9

Abstract:

A negative glow discharge lamp having improved efficacy enabled by reducing the anode work function by the introduction of a metal-based gas into the lamp envelope for absorption on the anode. The metal-based gas is preferably cesium but may also, for example, be sodium.

US Patent:

51866684, Feb 16, 1993

Filed:

Apr 8, 1992

Appl. No.:

7/865418

Inventors:

Joseph D. Michael - University Heights OH
Radomir Lagushenko - Brookline MA
Jakob Maya - Brookline MA
Oscar Biblarz - Carmel CA

Assignee:

GTE Products Corporation - Danvers MA

International Classification:

H01J 9395

US Classification:

445 9

Abstract:

A negative glow discharge lamp having improved efficacy enabled by reducing the anode work function by the introduction of a metal-based gas into the lamp envelope for absorption on the anode. The metal-based gas is preferably cesium but may also, for example, be sodium.

US Patent:

59594055, Sep 28, 1999

Filed:

Nov 8, 1996

Appl. No.:

8/746354

Inventors:

Thomas F. Soules - Richmond Heights OH
Joseph Darryl Michael - University Heights OH
David O. Wharmby - Ilkley, GB

Assignee:

General Electric Company - Schenectady NY

International Classification:

H01J 6504

US Classification:

313635

Abstract:

An electrodeless fluorescent lamp having an envelope with an improved shape. The invented shape is shorter and the light-trapping area near the neck is substantially reduced or eliminated. The ratio of the operational width to the operational height of the envelope is preferably at least 1. 5 and the reflector face angle is preferably less than 40. degree.

US Patent:

57898553, Aug 4, 1998

Filed:

Oct 17, 1996

Appl. No.:

8/730799

Inventors:

Graham Malcolm Forsdyke - Leicester, GB
Joseph Darryl Michael - University Heights OH
Steven John Everest - Essex, GB
Joseph Christopher Borowiec - Schenectady NY
Zoltan Toth - Monor, HU

Assignee:

General Electric Company - Schenectady NY

International Classification:

H01J 6504

US Classification:

313490

Abstract:

An electrodeless fluorescent reflector lamp has a discharge vessel containing a fill, a solenoid in a reentrant and indium on the inner wall of the vessel acting as a primary amalgam. A secondary amalgam of indium may be provided on the reentrant. The primary amalgam is preferably under an insulative skirt. The vessel has a light reflective coating on the inner wall under the skirt. The exhaust tube is tipped off at the proximal end of the reentrant or is omitted, the vessel being tipped off at the distal end of the reentrant.