parabolic reflector

(redirected from parabolic mirror)
Also found in: Dictionary, Thesaurus, Wikipedia.

parabolic reflector

[¦par·ə¦bäl·ik ri′flek·tər]
(electromagnetism)
An antenna having a concave surface which is generated either by translating a parabola perpendicular to the plane in which it lies (in a cylindrical parabolic reflector), or rotating it about its axis of symmetry (in a paraboloidal reflector). Also known as dish.

parabolic reflector

A light reflector whose surface is a paraboloid, i.e., a surface generated by rotating a parabolic section about its axis; if a small light source is placed at the focal point of the reflector, the reflected light will be concentrated in a nearly collimated beam parallel to the axis of the reflector.
References in periodicals archive ?
In Figure 4(b), the green rays are those reflected by the parabolic mirror, while the blue ones are the rays arriving from the sun; for clarity, the tube has not been drawn.
A camera is mounted behind the parabolic mirror for documentation purposes.
Because of the large size of the mirror and the potential danger to the students, the focus of the parabolic mirror was tested indoors.
The beamline consists of imaging optics, which uses two parabolic mirrors (focal length of 1.5 m) to image the 1 mm X 3 mm synchrotron radiation beam at the orbital plane onto an aperture.
You compose by looking in the parabolic mirror," he explained.
The authority has chosen parabolic mirror technology for the 200 MW concentrated solar plant with a contract estimated at $1.4bn (E1bn), while the 100 MW plant, expected to reach $960m (E700m), will be built as a solar power tower.
In front of the ancient ruins of the Temple of Hera, an actress playing the role of a high priestess will light the flame by the rays of the sun in a parabolic mirror.
In front of the ancient ruins of the Temple of Hera, an actress playing as a high priestesses lit the Olympic flame by the rays of the sun in a parabolic mirror.
An object located close to the lower parabolic mirror is brought to a focus above the aperture in the upper parabolic mirror.
Held at the Temple of Hera, the Youth Olympic flame was lit by reflecting sunlight using a parabolic mirror and carried by the High Priestess to the Ancient Stadium for the Youth Olympic Games to be held from August 14.
The Syngas generation process makes use of a two-chambered system, cerium oxide rotating rings as well as a parabolic mirror having the capability to heat the system s inner chamber to a temperature of about 1,500 C.
Preparing for his first night in the outback, Mears produced "a solar fire-starter" - a parabolic mirror with built - in metal pincers to hold the material with which to start your fire.