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Deutsche Silikatglas Synonyme

Englische photochromic lens Synonyme

Silikatglas Definition

Fresnel lens
() See under Lens.
Lenses
(pl. ) of Lens
Lens
(n.) 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.
Photochromic
(a.) Alt. of Photochromatic

photochromic lens / photochromic lenses Bedeutung

accommodating lens implant
accommodating IOL
a lens implant containing a hinge that allows for both near and far vision (thus mimicking the natural lens of a young person)
achromatic lens a compound lens system that forms an image free from chromatic aberration
anastigmatic lens a lens designed to correct astigmatism
camera lens
optical lens
a lens that focuses the image in a camera
closeup lens a photographic lens with a short focal length used to take pictures at short ranges
compound lens a lens system consisting of two or more lenses on the same axis
contact contact lens a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication
converging lens
convex lens
lens such that a beam of light passing through it is brought to a point or focus
crown lens a lens made of optical crown glass
diverging lens
concave lens
a lens such that a parallel beam of light passing through it is caused to diverge or spread out
field lens the lens that is farthest from the eye in an optical device with more than one lens
Fresnel lens lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
hood lens hood a tubular attachment used to keep stray light out of the lens of a camera
intraocular lens an artificial lens that is implanted into the eye of someone to replace a damaged natural lens or someone who has had a cataract removed
lens
lense
lens system
a transparent optical device used to converge or diverge transmitted light and to form images
lens electron lens electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons
lens cap
lens cover
cap used to keep lens free of dust when not in use
lens implant
interocular lens implant
IOL
a clear plastic lens that is implanted in the eye, usually done when the natural lens has been removed in a cataract operation
monofocal lens implant
monofocal IOL
a lens with a single focus that is used after cataract surgery to provide clear distance vision
multifocal lens implant
multifocal IOL
a type of lens implant that contains several rings with a common center and adjusts for near or far vision, the eye is in focus for near and far vision simultaneously
objective
objective lens
object lens
object glass
the lens or system of lenses in a telescope or microscope that is nearest the object being viewed
portrait lens a compound camera lens with a relatively high aperture
telephoto lens
zoom lens
a camera lens that magnifies the image
wide-angle lens
fisheye lens
a camera lens having a wider than normal angle of view (and usually a short focal length), produces an image that is foreshortened in the center and increasingly distorted in the periphery
lens
crystalline lens
lens of the eye
biconvex transparent body situated behind the iris in the eye, its role (along with the cornea) is to focuses light on the retina
lens cortex
cortex
the tissue that surrounds the lens nucleus
lens nucleus
nucleus
the central structure of the lens that is surrounded by the cortex
lens capsule a tenuous mesoblastic membrane surrounding the lens of the eye
lens (metaphor) a channel through which something can be seen or understood, the writer is the lens through which history can be seen
optician
lens maker
a worker who makes glasses for remedying defects of vision
Lens
genus Lens
genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils
lentil
lentil plant
Lens culinaris
widely cultivated Eurasian annual herb grown for its edible flattened seeds that are cooked like peas and also ground into meal and for its leafy stalks that are used as fodder
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