Parabolic reflectors and ellipsoidal reflectors are used to maximize illumination or projection system output by increasing light source efficiency. These devices resemble small satellite dishes in ...

A light rigid structure (of aluminum or other material) which reflects sound to a focus at which a MICROPHONE is placed. This focussing effect is very strong with WAVELENGTHs less than the aperture of ...

This Lume Cube XL is a full-spectrum COB LED light that’s ultra-compact and lightweight, ideal for stills and video.