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.
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Famous quotes containing the words night and/or vision:
“I would like a simple life
yet all night I am laying
poems away in a long box.
It is my immortality box,
my lay-away plan,
my coffin.”
—Anne Sexton (1928–1974)
“And taken by light in her arms at long and dear last
I may without fail
Suffer the first vision that set fire to the stars.”
—Dylan Thomas (1914–1953)