A concentrator is a device or tool that collects, combines, or intensifies something in a focused area. It helps to gather, increase, or direct a substance or energy towards a specific point or purpose. Full definition
Via MIT via Daily Tech More on MIT Inventions MIT: Move Over Batteries, Here Come the Nanotube - Enhanced Capacitors MIT Solar Concentrator Improves Solar Cell Efficiency and Design Options A Behind the Scenes Look at MIT's Algae Photobioreactor (VIDEO) MIT Boosts Methanol Fuel Cells Efficiency by 50 % (treehugger.com)
JINRI JR - 101 Professional Hair Dryer 1000W Mini Blow Dryer Ionic Ceramic Travel Hair Dryer with Styling Concentrator Nozzle 2 Speeds 2 Heat Settings CETL Certified (Black) (amazon.com)
We report single - and tandem - waveguide organic solar concentrators with quantum efficiencies exceeding 50 % and projected power conversion efficiencies as high as 6.8 %. (science.sciencemag.org)