The Biophysics of Visual Photoreception
作者:
Aaron Lewis,
Lucian V. Del Priore,
期刊:
Physics Today
(AIP Available online 1988)
卷期:
Volume 41,
issue 1
页码: 38-46
ISSN:0031-9228
年代: 1988
DOI:10.1063/1.881152
出版商: AIP
数据来源: AIP
摘要:
Vision is awe inspiring. The wondrous nature of this sensory process becomes clear when we consider just a few of its features. In the terminology of today's technology, the human visual system has a set of stereoscopic foreoptics that are instantly and automatically focusable to a few centimeters and are fully corrected for geometric aberrations, a servo‐controlled two‐axis scanning mechanism, a millisecond framing rate, sensitivity to brightnesses varying by a factor of 100 billion, the ability to detect a single photon, nearly 100&percent; quantum efficiency and a spatial as well as temporal image processor that could not be matched by the fastest supercomputer.
点击下载:
PDF
(2931KB)
返 回