Night vision is the ability to see in low light conditions. Whether by biological or technological means, night vision is made possible by a combination of two approaches: sufficient spectral range, and sufficient intensity range. Humans have poor night vision compared to many animals, in part because the human eye lacks a tapetum lucidum.
Read more about Night Vision: Biological Night Vision, Night Vision Technologies, Night Vision Goggles, Active Infrared, Laser Range Gated Imaging, Thermal Vision, Image Intensifier, Night Vision Devices, Automotive Night Vision
Famous quotes containing the words night and/or vision:
“Haven’t you heard, though,
About the ships where war has found them out
At sea, about the towns where war has come
Through opening clouds at night with droning speed
Further o’erhead than all but stars and angels
And children in the ships and in the towns?”
—Robert Frost (1874–1963)
“Whatever else American thinkers do, they psychologize, often brilliantly. The trouble is that psychology only takes us so far. The new interest in families has its merits, but it will have done us all a disservice if it turns us away from public issues to private matters. A vision of things that has no room for the inner life is bankrupt, but a psychology without social analysis or politics is both powerless and very lonely.”
—Joseph Featherstone (20th century)