Gas laser solenoid and cooling apparatus
US5253261A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Sep 16, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high temperature laser solenoid incorporates a combination of thermally and electrically insulating components to replace and to exceed the operating limits of epoxy encapsulation which solenoid is used in cooperation with a mechanically driven cooling air flow. The solenoid construction includes a layer of high temperature resistant, electrical insulation assembled on an aluminum bobbin adapted for coil winding so as to create a solenoid. High temperature insulated magnet wire is wound into a coil on the bobbin and the coil is covered with an additional high temperature resistant, electrically insulating film layer. Wire leads are passed through notches formed through the insulation barrier and the bobbin flanges and the solenoid is covered by an intimately contacting preformed heat conductive tubular casing. Forced draft cooling is supplied to the laser assembly, and particularly to the solenoids, by a positive pressure input ventilator and a negative pressure suction fan to maintain a controlled thermal environment. The solenoid is preferably associated with a single piece laser tube for increased laser life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.