Three-kilowatt xenon arc lamp
US6181053A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Apr 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved arc lamp with a ceramic body, an anode supported by a base, and a cathode suspended by a strut system opposite to the anode, and having an inside volume filled with xenon gas. The improvements include a groove in the ceramic body such that an angled area is presented to a head area of the anode that reduces heat coupling by radiation. A neck in the anode provides for a thermal choking such that a head portion of the anode will elevate in temperature during operation. A cavity is relieved in the base and all around the anode to provide a fixed means for managing the temperature of a head portion of the anode during operation. A stem portion of the cathode has a reduced diameter for attachment to the strut system and this provides reduced optical blockage. A base for the anode has a longer length than its diameter for improved heat transfer to an anode heatsink. A braze-ring recess is machined in an inner diameter of the base to help prevent a contamination of the surface of the anode facing the cathode with any braze material during manufacturing. A chamfer is cut in each of three legs in the strut system to reduce the tendency for electricity to arc-over to a reflector …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.