Astronomy View all facts Glossary Help |
physical object > artifact > device > instrument > optical device > detector > imager > integrating detector > charge-coupled device > virtual phase |
virtual phase comparison table |
Subject | is a kind of | has number of electrode | has definition |
---|---|---|---|
charge-coupled device | integrating detector | Highly sensitive photoelectric devices that can electronically record the intensity and point of arrival of tiny amounts of light. CCDs are placed at the receiving end of telescopes, to "take pictures" of very faint astronomical objects; they have almost completely replaced photographic plates. | |
virtual phase | charge-coupled device | 1 | A type of CCD in which only one electrode is physically outside the silicon and is such as to obscure only half of the pixel. A specially doped layer under the transparent part acts as another or virtual electrode. |
Next charge-coupled device: electron bombarded charge-coupled device Up: charge-coupled device Previous charge-coupled device: three-phase