Digital Photography Review on MSN

What the FE? A plain English guide to Sony's lens alphabet, from FE to ZA

Photo: Sony Lens names can be quite complicated, with some brands including every detail about the lens in their name.
IEEE

The Double-Focus Generalized Luneburg Lens Design and Synthesis Using Metasurfaces

Abstract: In this communication, we study the use of metasurfaces comprising circular metallic patches printed on a grounded dielectric substrate to design and synthesize the double-focus generalized ...
Indiatimes

NASA reimagines space junk as an economic equation: How a new cost lens could save the future of orbit

NASA's new research reframes orbital debris as a financial risk, quantifying the economic impact of collisions and mission losses. This cost-benefit analysis prioritizes efficient mitigation ...
IEEE

A Hemispherical Wide-Angle Beamsteering Near-Surface Focal-Plane Metamaterial Luneburg Lens Antenna Using Transformation-Optics

Abstract: A hemispherical Luneburg lens (LL) with the focal plane near lens surface is proposed using a transformation optics (TO)-based metamaterial (MTM) lens (metalens) concept for wide-angle ...
Investopedia

Double-Declining Balance (DDB) Depreciation Method: Definition and Formula

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...