parabolic mirror

A concave mirror, generally circular and with a parabolic cross-section, used either to concentrate radiation reflected from its surface onto a central focal point (as in a parabolic antenna) or to direct radiation emitted by the central focal point and reflected from the mirror into parallel beams (as in an automobile's headlights).

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Noun

parabolic mirror - a parabolic reflector for light radiation

parabolic reflector, paraboloid reflector - a concave reflector used to produce a parallel beam when the source is placed at its focus or to focus an incoming parallel beam

reflecting telescope, reflector - optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece; "Isaac Newton invented the reflecting telescope in 1668"

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References in classic literature

This intense heat they project in a parallel beam against any object they choose, by means of a polished parabolic mirror of unknown composition, much as the parabolic mirror of a lighthouse projects a beam of light.

Had the elevation of the parabolic mirror been a few yards higher, none could have lived to tell the tale.

View in context

The technique has been used to create metamaterial embedded geometrical optics (MEGO) devices such as a moth-eye-like lens that can absorb electromagnetic signals from any direction at selected wavelengths, in addition to an optical parabolic mirror with both reflecting and filtering functionalities.

Hybrid fabrication technique enhances optical functionality: Combining 3D printing with metal-coating and wet-etching processes enables metamaterial geometrical optics with unique properties

The proposed secondary optics is interposed between the linear parabolic mirror and the linear row of PV cells [9, 10].

Optical Tests on a Curve Fresnel Lens as Secondary Optics for Solar Troughs

A parabolic mirror or an acoustic horn is utilized to enhance the directivity and the received signal power of the microphone.

Localization of compressed air leaks in industrial environments using service robots with ultrasonic microphones

She takes special driving lessons in a car with a booster seat and a parabolic mirror offering better all round vision because she can't turn her head.

'COUGH UP COLEMAN!' Father-of-two says Wales boss owes him PS400

In a ceremony that evoked thoughts of Olympia in ancient Greece, a High Priestess lit the torch from the rays of the sun reflected in a parabolic mirror at the MDC National Stadium -- home of the first Asian Games in 1951.

Asian Games torch lit in New Delhi

Recycling parabolic reflectors or dishes for use in parabolic mirror research/experimentation has been gaining popularity both in the scientific community and among STEM-education-savvy teachers.

Parabolic mirror: focusing on science, technology, engineering, and math

The ceremony was held with actresses dressed as ancient priestesses at the birthplace of the Greek games held in antiquity, with the flame lighting using a parabolic mirror. NHL star Alex Ovechkin was the first Russian involved in the torch relay.

USC fires Lane Kiffin after loss to Arizona State

* Cometron 114AZ telescope: Designed specifically for viewing comets, the Cometron 114AZ telescope features a 114 mm parabolic mirror to capture the sharpest views of even dim comets on their journey toward the Sun.

Celestron[R] Gets Ready for ISON with New Cometron Line

At that time John Ericsson built a solar motor using a parabolic mirror to concentrate the sun's rays on the lower end of the cylinder of a Stirling engine.

Stirling effort: a 19th-century clergyman's passion for science led to the invention of a heat engine that is finding new uses to this day

The flame, meant to represent purity, was kindled from the rays of the sun using a parabolic mirror in a ceremony on May 10 at Olympia, the home of the ancient Olympic Games.

Olympic flame touches down on British soil