Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE)

Patent 5971565 Issued on October 26, 1999. Estimated Expiration Date:

October 20, 2015. 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

3909736

Fluid purification system
Patent #: 5004541
Issued on: 04/02/1991
Inventor: Noll, ;, , , --> Noll, et al.

High power regenerative laser amplifier Patent #: 5285310
Issued on: 02/08/1994
Inventor: Miller, et al.

Inventors

Assignee

Regents of the University of California

Application

No. 546029 filed on 10/20/1995

US Classes:

362/294, With ventilating, cooling or heat insulating means362/218, With ventilating or cooling means362/264Including cooling means

Examiners

Primary: Quach, Y.

Attorney, Agent or Firm

Carnahan; L. E., Sartorio; Henry P.

Foreign Patent References

2311992 FR 12/13/1976
184347 SU 01/13/1967

International Class

F21V 029/00

Abstract

A lamp system with a very soft high-intensity output is provided over a large area by water cooling a long-arc lamp inside a diffuse reflector of polytetrafluorethylene (PTFE) and titanium dioxide (TiO2) white pigment. The water is kept clean and pure by a one micron particulate filter and an activated charcoal/ultraviolet irradiation system that circulates and de-ionizes and biologically sterilizes the coolant water at all times, even when the long-arc lamp is off.