Compact microwave source for exciting electrodeless lamps
February 25, 2014. 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.Patent References 2737610 Electrodeless light source having improved arc shaping capability Adjustable length center conductor for termination fixtures for electrodeless lamps Instantaneous and efficient surface wave excitation of a low pressure gas or gases Method and apparatus for evening out the temperature distribution of electrodeless lamp bulbs Ultra violet ray generator by means of microwave excitation Magnetron coaxial adaptor having a cap which fits over the magnetron output antenna Patent #: 5216327 InventorApplicationNo. 202185 filed on 02/25/1994US Classes:315/39, Discharge device load with distributed parameter-type transmission line (e.g., wave-guide, coaxial cable)315/39.53, With output-coupling means315/248, Induction-type discharge device load315/344Electromagnetic influenced discharge deviceExaminersPrimary: Lee, BennyAttorney, Agent or FirmForeign Patent References
International ClassH01J 065/04AbstractApparatus for exciting electrodeless lamps. A magnetron for generating electromagnetic energy in the microwave region includes an extension for its antenna terminal. The extension extends the length of the antenna to control the phase of loading on the magnetron. A circular ground flange and perforated screen enclose the electrodeless lamp, permitting microwave energy to excite the gas within the lamp, while confining the energy to the space bounded by the perforated screen and cylindrical ground flange. The extension for the antenna has a length which maintains the reflection coefficient phase to a level which does not adversely disturb the magnetron operating frequency. | |
