Problems of low-light detection in real-time at high resolution
Version of Record online: 9 AUG 2011
Copyright © 1991 Foundation for Advances in Medicine and Science, Inc.
Volume 13, Issue 1, pages 41–46, 1991
How to Cite
Gursky, H. and Fritz, G. (1991), Problems of low-light detection in real-time at high resolution. Scanning, 13: 41–46. doi: 10.1002/sca.4950130109
- Issue online: 9 AUG 2011
- Version of Record online: 9 AUG 2011
- Manuscript Received: 6 JUN 1990
Various kinds of low-light-level detectors and image intensifiers are described and specific charge-coupled device (CCD) developments are discussed from the perspective of the astronomical community, with possible application to optical microscopy. A number of research groups are reporting success at obtaining custom CCDs for application to high-quality cameras working at low-light levels. CCDs offer significant advantages in image quality and sensitivity compared with more traditional devices. Signal to noise (S/N) is derived for both CCDs and intensified devices. There is a tradeoff between the two and, because of the high read-out rate required by microscopists, intensified devices still offer a S/N advantage at the lowest light levels.