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What is the meaning of LENS. Phrases containing LENS
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What is the meaning of LENS. Phrases containing LENS
See meanings and uses of LENS!Slangs & AI meanings
When the LSO orders a pilot not to trap. A mandatory signal, usually a visual (waveoff lights on the lens) or audible command (on the UHF radio) for a pilot to cease his approach and not touch down.
LSD
Clear signal. (At the time Cy Warman wrote his celebrated poem, "I Hope the Lights Are White," the clear signal was white and green meant caution. This was changed years ago because of the fact that when a red or green signal lens broke or fell out it exposed a white, thus giving a clear board to engineers even though the signal itself was set to stop or go slow)
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Digital Single-Lens Reflex (Camera).
A device held by the LSO that activates the “cut†light on the lens: as a verb, to drop a bomb or external fuel tank.
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n.
A convex lens of glass for producing heat by converging the sun's rays into a focus.
pl.
of Lens
n.
An instrument with two lenses, by which an image of a single picture projected upon a screen of ground glass is made to present an appearance of relief, and may be viewed by several persons at once.
n.
The reciprocal of the focal distance of a lens, used as measure of the divergence or convergence of a pencil of rays.
n.
The art or process of exhibiting luminous images, especially those of external objects, in a darkened room, by arrangements of lenses or mirrors.
n.
The diaphragm used in optical instruments to cut off the marginal portions of a beam of light passing through lenses.
n.
One of the transparent lenslike cells in the ocelli of certain arthropods.
n.
A kind of watch crystal which is more than ordinarily flattened in the center; also, a species of convexoconcave lens for spectacles.
n.
An instrument for measuring the curvature of spherical surface, as of lenses for telescope, etc.
n.
An optical apparatus in which pictures are viewed through a large lens with stereoptical effects. It is often combined with the stereoscope.
n.
The half of a lens divided along a plane passing through its axis.
a.
Assisting sight, as a lens or the like.
v. i.
To have the power of causing objects to appear larger than they really are; to increase the apparent dimensions of objects; as, some lenses magnify but little.
n.
An optical instrument consisting of two lenses set in a light frame, and worn to assist sight, to obviate some defect in the organs of vision, or to shield the eyes from bright light.
n.
A tool on which lenses are fastened in a group, for polishing or grinding.
a.
Half lenticular or convex; imperfectly resembling a lens.
n.
A lens convex on one side and concave on the other.
n.
A disease of the eye, in which the iris adheres to the cornea or to the capsule of the crystalline lens.
n.
A lamp with lenses or reflectors to collect the rays of light and throw them in a given direction; -- used in lighthouses.
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