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optical Inglés británico e internacional

Relating to sight, especially in relation to the action of light

optical art Inglés británico e internacional

Another term for op art.

optical axis Inglés británico e internacional

A line passing through the centre of curvature of a lens or spherical mirror and parallel to the axis of symmetry

optical bench Inglés británico e internacional

A straight rigid bar, typically marked with a scale, to which supports for lenses, light sources, and other optical components can be attached

optical fibre Inglés británico e internacional

A thin glass fibre through which light can be transmitted

optical glass Inglés británico e internacional

A very pure kind of glass used for lenses

optical path Inglés británico e internacional

The distance which in a vacuum would contain the same number of wavelengths as the actual path taken by a ray of light

magneto-optical Inglés británico e internacional

Relating to or employing both optical and magnetic phenomena or technology

optical density Inglés británico e internacional

The degree to which a refractive medium retards transmitted rays of light

optical double Inglés británico e internacional

A group of two stars which appear to constitute a double star due to their being in the same line of sight as seen from the earth, but are actually at different distances

optical isomer Inglés británico e internacional

Each of two or more forms of a compound which have the same structure but are mirror images of each other and typically differ in optical activity

optical scanner Inglés británico e internacional

A device which performs optical character recognition and produces coded signals corresponding to the characters identified

optical activity Inglés británico e internacional

The property (displayed by solutions of some compounds, notably many sugars) of rotating the plane of polarization of plane-polarized light

optical brightener Inglés británico e internacional

A fluorescent substance added to detergents in order to produce a whitening effect on laundry

optical illusion Inglés británico e internacional

Something that deceives the eye by appearing to be other than it is

optical microscope Inglés británico e internacional

A microscope using visible light, typically viewed directly by the eye

optical rotation Inglés británico e internacional

The rotation of the plane of polarization of plane-polarized light by an optically active substance

optical turnstile Inglés británico e internacional

An access control system without barriers in which those attempting to enter are evaluated by closed-circuit television or other visual means

optical tweezers Inglés británico e internacional

A device that uses light from a low-wattage laser to manipulate individual molecules within cells

optical centring New Oxford Dictionary for Writers & Editors

positioning text on a page so that it appears to be centred though by measurement it is not

optical character recognition Inglés británico e internacional

The identification of printed characters using photoelectric devices and computer software

disk in disc Inglés británico e internacional

An information storage device for a computer in the shape of a round flat plate which can be rotated to give access to all parts of the surface. The data may be stored either magnetically (in a magnetic disk) or optically (in an optical disk such as a CD-ROM)

indicatrix Inglés británico e internacional

An imaginary ellipsoidal surface whose axes represent the refractive indices of a crystal for light following different directions with respect to the crystal axes

optical indicatrix in indicatrix Inglés británico e internacional

An imaginary ellipsoidal surface whose axes represent the refractive indices of a crystal for light following different directions with respect to the crystal axes

optical disk in disc Inglés británico e internacional

An information storage device for a computer in the shape of a round flat plate which can be rotated to give access to all parts of the surface. The data may be stored either magnetically (in a magnetic disk) or optically (in an optical disk such as a CD-ROM)