negative-refraction lens

См. также в других словарях:

• Negative refraction — is the name for an electromagnetic phenomenon where light rays are refracted at an interface in the reverse sense to that normally expected. Such an effect can be obtained using a metamaterial which has been designed to achieve a negative value… …   Wikipedia

• Negative index metamaterials — A negative index metamaterial causes light to refract, or bend, differently than in more common positive refractive index materials. Negative index metamaterials or negative index materials (NIM) are artificial structures where the refractive… …   Wikipedia

• Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra …   Wikipedia

• Lens clock — A lens clock is a mechanical dial caliper that is used to measure dioptric power of a lens. It is a specialized version of a spherometer. A lens clock measures the curvature of a surface, but gives the result in diopters, assuming the lens is… …   Wikipedia

• negative spherical aberration — unequal refraction of light rays by a lens, the peripheral rays being focused farther from the lens than the paraxial rays …   Medical dictionary

• Corrective lens — A bifocal corrective eyeglass lens A pair of contact le …   Wikipedia

• Double-Gauss lens — The double Gauss design with optical ray traces The double Gauss lens is a compound lens used mostly in camera lenses that reduces optical aberrations over a large focal plane. Contents 1 Design …   Wikipedia

• Lenticular lens — A series of cylindrical lenses molded in a plastic substrate A lenticular lens is an array of magnifying lenses, designed so that when viewed from slightly different angles, different images are magnified.[1] The most common example is the lenses …   Wikipedia

• diverging lens — noun a lens such that a parallel beam of light passing through it is caused to diverge or spread out • Syn: ↑concave lens • Hypernyms: ↑lens, ↑lense, ↑lens system * * * noun : a lens that causes divergence of rays and has a virtual focus for… …   Useful english dictionary

• diverging lens — Optics. a lens that causes a beam of parallel rays to diverge after refraction, as from a virtual image; a lens that has a negative focal length. Also called negative lens. Cf. converging lens. * * * …   Universalium

• Metamaterial — Negative index metamaterial array configuration, which was constructed of copper split ring resonators and wires mounted on interlocking sheets of fiberglass circuit board. The total array consists of 3 by 20×20 unit cells with overall dimensions …   Wikipedia