Fluorescent luminous device including cathodes that receive independently controlled voltages
US6472815B1 · kind B1 · utility
0Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | May 26, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/4476
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fluorescent luminous device which is capable of eliminating arrangement of independently controllable control electrodes and a power supply for applying a negative potential to the control electrodes. A plurality of anode chains and a plurality of filamentary cathodes are arranged in a manner to correspond to each other. A potential across the cathodes is changed over between a zero or negative potential and a positive potential to control the anode dots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.