HIGH-LUMINANCE MICROWAVE LAMP

• Main Authors: URY MICHAEL G, PAUL S DARLING, SIMPSON JAMES E, PROCTER JAMES, WAYNE G LOVE, DAVID HELSEL, MACLENNAN DONALD A, JOHN F RASMASSEN, MICHAEL GAABI, DOUGLAS A KIRKPATRICK, MARK G FLETCHER, ROBERT H LIDELL, DOLAN JAMES T, PAUL K RAFF, DAVID T SIGEL, TURNER BRIAN P, ROBERT J ROY
• Format: Patent
• Language: English
• Published: 19.12.2000
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PROBLEM TO BE SOLVED: To provide a high-power aperture lamp, by providing a reflector demarcating a reflective cavity surrounding a bulb storing a filler for discharge formation and an aperture for light emission, and providing the reflective cavity with a considerably small inside surface area. SOLUTION: A coupling construction transmits microwave energy, and a bulb stores a filler for discharge formation that emits light when stimulated by the microwave energy. A reflector is disposed in a microwave cavity. and the inside surface area of a reflective cavity is considerably smaller than that of the microwave cavity, A screen 4a has a solid portion 5a and a mesh portion 7a, and a dielectric substance 24 is present between an upper surface of a wave guide 25 and a bulb 9a. The dielectric substance 24 has a dielectric constant larger than the dielectric constant of air. A dielectric constant of 4 or more is needed to considerably reduce the size of a resonance cavity 3.