two-lens
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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 — can refer to: NOTOC In optics*Lens (optics), an optical element which converges or diverges light **Lens (anatomy), a part of the eye **Corrective lens for correction of human vision ***Contact lens, placed on the cornea of the eye **Photographic … Wikipedia
lens´less — lens «lehnz», noun, plural lens|es. 1. a curved piece of glass, or something like glass, that will bring closer together or send wider apart the rays of light passing through it. The lens of a camera forms images. The lenses of a telescope make… … Useful english dictionary
Lens — (l[e^]nz), n.; pl. {Lenses} ( [e^]z). [L. lens a lentil. So named from the resemblance in shape of a double convex lens to the seed of a lentil. Cf. {Lentil}.] (Opt.) A piece of glass, or other transparent substance, ground with two opposite… … The Collaborative International Dictionary of English
Lens Annab — Personal information Full name … Wikipedia
lens — [lenz] n. [L, lentil: from the resemblance to the shape of a lentil] 1. a) a piece of glass, or other transparent substance, with two curved surfaces, or one plane and one curved, regularly bringing together or spreading rays of light passing… … English World dictionary
Two-photon excitation microscopy — is a fluorescence imaging technique that allows imaging of living tissue up to a very high depth, that is up to about one millimeter. Being a special variant of the multiphoton fluorescence microscope, it uses red shifted excitation light which… … Wikipedia
Lens space — A lens space is an example of a topological space, considered in mathematics. The term often refers to a specific class of 3 manifolds, but in general can be defined for higher dimensions.In the 3 manifold case, a picturesque description of a… … Wikipedia
Lens — The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines the back of the eye, senses light and creates impulses that go through the optic nerve to the brain). The lens was named after the lentil … Medical dictionary
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
Lens (anatomy) — Crystalline lens (anatomy) Light from a single point of a distant object and light from a single point of a near object being brought to a focus by changing the curvature of the lens … Wikipedia
