Laser welding of an electron gun
US4327275A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1979 |
| Grant date | Apr 27, 1982 |
| Priority date | — |
| Expiry date | Nov 9, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2209/185
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of assembling an electron gun, which method permits welding of a number of welding points to be effected simply, in a short period of time and without causing mechanical distortion in welded parts and comprises the steps of; causing relative movement of electron gun parts to be welded together and the axes of a laser beam for welding and a light beam for positioning a welding point, these axes being in a predetermined positional relation to each other; causing the light beam for positioning to be incident on a part to be welded; detecting reflected light obtained when the light beam for positioning is reflected by a portion of the aformentioned part to be welded corresponding to a welding point; stopping the aforementioned relative movement according to the detection of the aforementioned reflected light; and exposing the aforementioned welding point to the laser beam for welding according to the detection of the reflected light so as to effect welding of parts to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.