Fres·nel lens

(frə-nĕl′)

A thin optical lens consisting of concentric rings of segmental lenses and having a short focal length, used primarily in lighthouses, spotlights, overhead projectors, and the headlights of motor vehicles.

[After Augustin Jean Fresnel.]

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.

Fresnel lens

(General Physics) a lens consisting of a number of smaller lenses arranged to give a flat surface of short focal length

[C20: named after Augustin Jean Fresnel (1788–1827), French physicist]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

Fresnel lens - lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length

headlamp, headlight - a powerful light with reflector; attached to the front of an automobile or locomotive

lens, lens system, lense - a transparent optical device used to converge or diverge transmitted light and to form images

searchlight - a light source with reflectors that projects a beam of light in a particular direction

Translations

lente di Fresnel

Mentioned in

References in periodicals archive

Heyer et al., "A novel application of a Fresnel lens for a solar stove and solar heating," Renewable Energy, vol.

A review of solar photovoltaic concentrators

The Fresnel lens that magnifies its 1000-watt bulb also needs repair.

Befriending the beacons The Coast Guard is looking to unload the lighthouses it runs

Additionally, Fresnel lens has been proven as an appropriate concentrating device for using in solar photo-Fenton process [7, 8]:

Solar photo-Fenton degradation of electro-optical industry wastewater by a pilot-scale Fresnel lens assisted IPCC reactor

Someone to wipe off the Fresnel lens, ensuring that its magnificent colors are unfettered in their reach across the foggy Pacific Ocean; someone to sweep its stairs, so tourists can climb up without inhaling dust; someone to wash its windows, so visitors may gaze out upon the oceanfront grounds.

Keeper throws herself into Umpqua Lighthouse museum project

The cube structure is made from an offset printed substrate of solid bleached sulfate from WestRock, laminated to metallised polyethylene with custom-registered Fresnel lens.

Holography takes centre stage at AIMCAL Awards: the Vacuum Metallized or Coated Product of the Year 2016 Awards were announced at the annual AIMCAL (Association of Metallisers, Laminators and Converters) meeting, held in March in California, US

Therefore, we design the active two-axis solar tracker with Fresnel lens to collect the thermal power of solar efficiently and to offer a steady heat source for photo-thermal applications.

Two-axis solar heat collection tracker system for solar thermal applications

Visitors willing to climb 110 steps can view the lighthouse's First Order Fresnel Lens. In addition, the Interpretive Center, with many displays featuring the area's cultural and natural resources, will be open from 10 a.m.

Outdoor Digest

Caption: Unifoil's Be Joyful decorative display cube with Fresnel lens.

Visa pulls plug on HoloMag, CFCI deal called off

In other areas such as packaging, new innovations as observed at The Holography Conference in Shanghai with the launch of a new innovative Fresnel lens environmentally-friendly packaging transfer foil and laminate by Wood and Associates are products that could well begin to take off.

IHMA General Secretary plans for the future

Whiz Disc Multi-Functional Windscreen Labels; OpSec Agrees Cash Offer; New Hologram Image Register; Watching the Clouds Go By; Latest in Embossed Fresnel Lens and Photopolymer Unveiled in Shanghai; Market Report Forecasts Growth; DiArts Fully Automated Origination System; 4D Laser Printing of Holograms

2015--the year in headlines