Exposure apparatus
US3949411A · kind A · utility
7Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Feb 4, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/2272
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In exposure apparatus adapted to expose the phosphor on the face plate of a colour picture tube provided with a slot type colour selection electrode of the type comprising an exposure light source and a correction lens disposed between the light source and the colour selection electrode the exposure light source and the correction lens are moved with respect to the colour selection electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.