Crossword clues for fresnel
The Collaborative International Dictionary
Wiktionary
n. (context physics English) A unit of frequency equal to 1012 or one terahertz
Wikipedia
A Fresnel is a unit of frequency equal to 10 s. It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (with the identical value 10 hertz).
Fresnel commonly refers to physicist Augustin-Jean Fresnel.
Fresnel may also refer to:
- Fulgence Fresnel (1795–1855), a French Orientalist and brother of Augustin-Jean Fresnel
- Fresnel equations, describing light reflection and refraction
- Huygens–Fresnel principle, a description of wave propagation
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Fresnel diffraction (or Fresnel pattern), describing wave propagation through an aperture
- Fresnel integral, functions related to Fresnel diffraction
- Fresnel number, a dimensionless parameter in diffraction theory
- Fresnel zone, a pattern of radiation resulting from Fresnel diffraction
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Fresnel zone plate, a plate which focuses light by Fresnel diffraction
- Fresnel Imager, a proposed design for a space telescope that uses Fresnel zone plates
- Fresnel diffraction mirror, an atomic mirror utilizing Fresnel diffraction
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Fresnel lens, an efficient lens originally developed for lighthouses
- Hyperradiant Fresnel lens, a now-obsolete very large Fresnel lens
- Fresnel lantern, a theatre spotlight incorporating a Fresnel lens
- Fresnel rhomb, a plate that circularly polarizes light
- Fresnel (frequency), a formerly-used unit equal to one terahertz.
- Fresnel drag coefficient, a parameter used in early attempts to explain the constant speed of light
- Rimae Fresnel, an escarpment on the moon
Usage examples of "fresnel".
Conrad even knew the buzzwords to explain it: a zettahertz laser—that’s a trillion gigahertz, you know—operating at four watts and refracted through a pair of Fresnel condensates to form an isotropic beam exactly thirty meters wide, terminating at the collapsium barrier of the forward ertial shield.
Aft, he could see deck personnel and officers checking the arrestor cables and gathering in front of the Fresnel lens system.
The carrier was resolving itself into its shape, the familiar island jutting above the flight deck, the Fresnel lens now a pinprick of light off to his left.
The acknowledgment had just passed from the Air Boss to the Landing Signals Officer, or LSO, standing at his station just below the Fresnel lens.
How the hell was he supposed to spot the Fresnel lens that was supposed to help guide his final approach?
If the pilot is high of the glide path, he sees the top Fresnel lens.
To port, the bull's-eye of tf tfce Fresnel lens lit up red as the LSO triggered the pickle ^(twitch te held in one hand.
We can get square Fresnel lens panels commercially, and they can generate a lot of heat -- up to 3,000 degrees Fahrenheit.
We can get square Fresnel lens panels commercially, and they can generate a lot of heat—.
We can get square Fresnel lens panels commercially, and they can generate a lot of heat&mdash.
It was like looking at the young Victoria through a big Fresnel lens.
It was also pitch black save for the rain-smeared gleam of flight-deck acquisition lights and the glow from the big Fresnel lens apparatus aft and to port, where the Landing Signals officer and his crew were already talking the next aviator down.
The tiny Fresnel lens showed a small black woman clad entirely in white standing on the other side.
Thick wires, in insulating sheathes of hand-knit asbestos, twist out of the jar and into the business end of the galvanick lucipher: a copper salad bowl whose mouth is closed off by a Fresnel lens like the ones on a lighthouse.
Overhead, a Fresnel lens two meters square focused the canopy's diffuse sunlight on the desk's occupant.