The album is like looking at the world through negative lenses.
2.
Always being negative, looking at the world through a negative lens.
3.
Chameleon eyes feature a negative lens, meaning that the lens is concave.
4.
In science textbooks, positive lenses are usually diagrammed as convex on both sides; negative lenses are usually diagrammed as concave on both sides.
5.
When a plane wave-front illuminates a negative lens, it is expanded into a wave which appears to diverge from the focal point of the lens.
6.
The combination of a negative lens and a positive cornea in the chameleon eye allow for accurate focusing by corneal accommodation . makes the chameleon the only vertebrate to focus monocularly.
7.
With such a known positive lens, you can stack a weaker negative ( nearsighted correction ) lens next to it and from the combined focal length calculate the diopters of the negative lens.
8.
While the negative lens " L " 2 moves from the front to the back of the lens, the lens " L " 1 moves forward and then backward in a parabolic arc.
9.
When the plane wave is incident at a non-normal angle at the time of recording, the pattern formed is more complex but still acts as a negative lens provided it is illuminated at the original angle.
10.
In 1883 or 1884 New Zealand photographer Alexander McKay discovered he could create a much more manageable long-focus lens by combining a shorter focal length telescope objective lens with negative lenses and other optical parts from opera glasses to modify the light cone.
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