Electrodeless lamp which couples to small bulb

Patent 4975625 Issued on December 4, 1990. Estimated Expiration Date:

June 24, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Method & apparatus for cooling electrodeless lamps
Patent #: 4485332
Issued on: 11/27/1984
Inventor: Ury , et al.

Method and apparatus for performing deep UV photolithography
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Inventor: Matthews , et al.

Lamp having segmented reflector
Patent #: 4683525
Issued on: 07/28/1987
Inventor: Camm

Microwave powered electrodeless light source utilizing de-coupled modes
Patent #: 4749915
Issued on: 06/07/1988
Inventor: Lynch , et al.

Optical system for uniform illumination of a plane surface
Patent #: 4812957
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Inventor: Hill

Deep UV lamp bulb with improved fill Patent #: 4859906
Issued on: 08/22/1989
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Inventors

Assignee

Fusion Systems Corporation

Application

No. 211543 filed on 06/24/1988

US Classes:

315/344, Electromagnetic influenced discharge device315/39, Discharge device load with distributed parameter-type transmission line (e.g., wave-guide, coaxial cable)315/248Induction-type discharge device load

Examiners

Primary: LaRoche, Eugene R.
Assistant: Neyzari, Ali

Attorney, Agent or Firm

Pollock, Vande Sande & Priddy

International Class

H05B 041/24

Abstract

An electrodeless lamp which couples strong microwave fields to a very small bulb of diameter about 1/2' or smaller. The lamp is operated in a mode which is independent of the height of the cavity and which provides electric field lines parallel to such height. The height of the cavity is substantially reduced as compared with prior lamps to provide strong coupling of the electric field to the bulb.