High-power radiation source

Patent 4983881 Issued on January 8, 1991. Estimated Expiration Date:

January 11, 2009. 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

Compact fluorescent light source and method of excitation thereof
Patent #: 4266167
Issued on: 05/05/1981
Inventor: Proud , et al.

Method of making fluorescent lamp with improved lumen output
Patent #: 4778581
Issued on: 10/18/1988
Inventor: Sigai , et al.

High-power radiator
Patent #: 4837484
Issued on: 06/06/1989
Inventor: Eliasson , et al.

Flat fluorescent lamp having transparent electrodes Patent #: 4851734
Issued on: 07/25/1989
Inventor: Hamai , et al.

Inventors

Application

No. 295743 filed on 01/11/1989

US Classes:

313/607, Having electrode exterior to envelope313/234, ELECTRODE EXTERIOR TO ENVELOPE313/489, With protective coating or filter313/493, Envelope structure or material313/635Envelope layer or coating

Examiners

Primary: Wieder, Kenneth A.

Attorney, Agent or Firm

Oblon, Spivak, McClelland, Maier & Neustadt

Foreign Patent References

739064 BE. 03/12/1970

International Classes

H01J 017/06
H01J 061/06
H01J 061/42

Foreign Application Priority Data

1988-01-15 CH

Abstract

The high-power radiation source for visible light includes a discharge space (4) bounded by dielectrics (1, 10) and filled with a noble gas or gas mixture. Adjacent to the dielectrics (1,10) are luminescent coatings (5,11). Both the dielectric (1,10) and the electrode (6,12) situated on the surfaces of the dielectrics facing away from the discharge space (4) are transparent to the radiation generated by the dark electrical discharges. In this way, a large-area radiation source with high efficiency is provided which can be operated with high electrical power densities of up to 50 kW/m2 of active electrode surface.