Abstract: We present a smartphone based microscope using elastomer liquid lens as the objective to achieve adjustable magnification without lens displacement or replacement. The microscope is small ...

An unexpected discovery in a Harvard lab has led to a breakthrough insight into choosing an unconventional material, silica, ...

The first thing most people will notice about the Vortex AMG 1-10×24 is its eye-popping price. It lists for a stunning $6,399, with a street price of $4,000. Now it’s one thing for military units to ...

Abstract: In this letter, design and performance of a dual-polarized quad-ridge horn (QRH) operating over 3:1 bandwidth are discussed. In the proposed configuration, the QRH is loaded with a ...

Aspheric lenses are designed to focus or collimate light without introducing spherical aberration into the transmitted wavefront. For monochromatic sources, spherical aberration is often what prevents ...