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Definition of Lens

Lens n. means: A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure.

What is the meaning/definition of Lens ?

Lens n. means: A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure.

Meaning of Lens

Lens (n.) means: A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure.

More meanings / definitions of Lens or words, sentences containing Lens?

Collimator (n.): A tube having a convex lens at one end and at the other a small opening or slit which is at the principal focus of the lens, used for producing a beam of parallel rays; also, a lens so used.

Diacaustic (n.): That which burns by refraction, as a double convex lens, or the sun's rays concentrated by such a lens, sometimes used as a cautery.

Bull's-eye (n.): A lantern, with a thick glass lens on one side for concentrating the light on any object; also, the lens itself.

Lentoid (a.): Having the form of a lens; lens-shaped.

Camera obscura (): An apparatus in which the images of external objects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the outlines may be traced.

Fresnel lens (): See under Lens.

Plano-concave (a.): Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens.

Plano-convex (a.): Plane or flat on one side, and convex on the other; as, a plano-convex lens. See Convex, and Lens.

Aberration (n.): The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; called spherical aberration, when due to the spherical form of the lens or mirror, such form giving different foci for central and marginal rays; and chromatic aberration, when due to different refrangibilities of the colored rays of the spectrum, those of each color having a distinct focus.

Lenses (pl. ): of Lens

Lenticularly (adv.): In the manner of a lens; with a curve.

Specular (a.): Assisting sight, as a lens or the like.

Lenticula (n.): A lens of small size.

Meniscus (n.): A lens convex on one side and concave on the other.

Couching (n.): The operation of putting down or displacing the opaque lens in cataract.

Semilens (n.): The half of a lens divided along a plane passing through its axis.

Lenticel (n.): A small, lens-shaped gland on the under side of some leaves.

Chromatism (n.): The state of being colored, as in the case of images formed by a lens.

Semilenticular (a.): Half lenticular or convex; imperfectly resembling a lens.

Diaphanoscope (n.): A dark box constructed for viewing transparent pictures, with or without a lens.

Eyeglass (n.): A lens of glass to assist the sight. Eyeglasses are used singly or in pairs.

Synechia (n.): A disease of the eye, in which the iris adheres to the cornea or to the capsule of the crystalline lens.

Aplanatic (a.): Having two or more parts of different curvatures, so combined as to remove spherical aberration; -- said of a lens.

Diacaustic (n.): A curved formed by the consecutive intersections of rays of light refracted through a lens.

Graphoscope (n.): An optical instrument for magnifying engravings, photographs, etc., usually having one large lens and two smaller ones.

Sunglass (n.): A convex lens of glass for producing heat by converging the sun's rays into a focus.

Fres'nel' lan'tern (): A lantern having a lamp surrounded by a hollow cylindrical Fresnel lens.

Amasthenic (a.): Uniting the chemical rays of light into one focus, as a certain kind of lens; amacratic.

Condenser (n.): A lens or mirror, usually of short focal distance, used to concentrate light upon an object.

Vergency (n.): The reciprocal of the focal distance of a lens, used as measure of the divergence or convergence of a pencil of rays.

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Words, slangs, sentences and phrases similar to Lens

Meaning of LENS

LENS means: LSD

Meaning of lens

lens means: LSD

Meaning of CONTACT LENS

CONTACT LENS means: LSD

Meaning of contact lens

contact lens means: LSD

Meaning of DT

DT means: Digital Single-Lens Reflex (Camera).

Meaning of Pickle

Pickle means: 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.

Meaning of Waveoff

Waveoff means: 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.

Meaning of GREEN EYE

GREEN EYE means: 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)

Meaning of Dell Laser Consultants

Dell Laser Consultants means: Address : Barton Oaks Plaza 4 , 901 S MoPac Expy #350, Austin, Texas 78746 USA

Phone: (512) 347-0255

Email: [email protected]

Website: http://www.dellvision.com/

Hour: Monday-Friday 8:00 am-5:00 pm

Description : Our Medical Director, Steven J. Dell, M.D. is an internationally recognized leader in refractive eye surgery based in Austin, Texas specializing in LASIK laser eye surgery, cataract surgery and refractive lens exchange. In fact, Dr. Dell has repeatedly been elected one of the Top Fifty Opinion Leaders in the field of Cataract and Refractive Surgery by the worldwide physician readership of the medical journal “Cataract and Refractive Surgery Today”.

Keywords: Medical Service, Lasik at Texas,Texas Laser Eye Surgeon, Austin Professional Service

Facebook: https://www.facebook.com/delllaserconsultants/

Twitter: https://twitter.com/dellvision

Google Plus: https://plus.google.com/105883646189946788741/about?hl=en

Youtube: https://www.youtube.com/user/delllaserconsultants

Meaning of Collimator

Collimator means: A tube having a convex lens at one end and at the other a small opening or slit which is at the principal focus of the lens, used for producing a beam of parallel rays; also, a lens so used.

Meaning of Diacaustic

Diacaustic means: That which burns by refraction, as a double convex lens, or the sun's rays concentrated by such a lens, sometimes used as a cautery.

Meaning of Bull's-eye

Bull's-eye means: A lantern, with a thick glass lens on one side for concentrating the light on any object; also, the lens itself.

Meaning of Lentoid

Lentoid means: Having the form of a lens; lens-shaped.

Meaning of Camera obscura

Camera obscura means: An apparatus in which the images of external objects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the outlines may be traced.

Meaning of Fresnel lens

Fresnel lens means: See under Lens.

Meaning of Plano-concave

Plano-concave means: Plane or flat on one side, and concave on the other; as, a plano-concave lens. See Lens.

Meaning of Plano-convex

Plano-convex means: Plane or flat on one side, and convex on the other; as, a plano-convex lens. See Convex, and Lens.

Meaning of Aberration

Aberration means: The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; called spherical aberration, when due to the spherical form of the lens or mirror, such form giving different foci for central and marginal rays; and chromatic aberration, when due to different refrangibilities of the colored rays of the spectrum, those of each color having a distinct focus.

Meaning of Lenses

Lenses means: of Lens

Meaning of Lenticularly

Lenticularly means: In the manner of a lens; with a curve.

Meaning of Specular

Specular means: Assisting sight, as a lens or the like.

Meaning of Lenticula

Lenticula means: A lens of small size.

Meaning of Meniscus

Meniscus means: A lens convex on one side and concave on the other.

Meaning of Couching

Couching means: The operation of putting down or displacing the opaque lens in cataract.

Dictionary words and meanings

Meaning of Ectosarc

Ectosarc means: The semisolid external layer of protoplasm in some unicellular organisms, as the amoeba; ectoplasm; exoplasm.

Meaning of Oxygenator

Oxygenator means: An oxidizer.

Meaning of Plighting

Plighting means: of Plight

Meaning of Releasable

Releasable means: That may be released.

Meaning of Slit

Slit means: To cut; to sever; to divide.

Slang words and meanings

Meaning of BAIT

BAIT means: Bait is slang for an attractive potential sexual partner.

Meaning of meh

meh means: Who cares, whatever

Meaning of soak

soak means: to walk along heavily and slowly

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