Luminescence controlling apparatus, a luminescence apparatus, an image reading apparatus and an image forming apparatus
US6369523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Dec 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A luminescence controlling apparatus includes a rare gas pipe equipped with a pair of electrodes in which rare gas is sealed, a power supply for impressing voltage to the pair of electrodes and an electric charge absorption member for absorbing electrons generated during electric discharge of the rare gas pipe caused by impressing voltage to the pair of electrodes. The absorption member is disposed in the rare gas pipe. The luminescence controlling apparatus further includes a controller for controlling a luminescence amount of the rare gas pipe by adjusting a quantity of electrons absorbed by the electric charge absorption member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.