Solid-state image intensifier and x-ray examination apparatus comprising a solid-state image intensifier
US5698858A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Aug 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
Abstract
A solid-state image intensifier is provided with a thin film photoconductive layer and an electroluminescent layer which contains a polymer light emitting diode (LED) material. The photoconductive layer is a thin film which does not suffer from electrical breakdown because a low voltage is applied to the electrodes, said low voltage being sufficient to cause luminescence of the electroluminescence layer. As the photoconductive layer is thin the time response of the solid state image intensifier is shortened and its spatial resolution is improved. The color of the light given off by the polymer LED material is controlled by suitable chemical substitutions to the polymer. Consequently, the color of the light given off may be adapted to the color dependence of the sensitivity of an image sensor for detecting the output light of the solid-state image intensifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.