While Sony, Nikon and Fujifilm APS-C shooters were spoilt for choice when it came to budget-friendly, third-party autofocus lens options, Canon EOS R owners were still locked into first-party lenses.

Abstract: Based on Mach-Zehnder interference (MZI) principle, we propose a balloon-like optical fiber micro-liquid-level sensor and verify its performance through experiments. The sensor can ...

Abstract: Two SAW devices were integrated on a pressure-sensitive diaphragm based on an AlN film substrate. The placement of the devices was carefully designed according to the frequency variation ...

The U-2’s ability to reach 70,000 feet—an altitude that most modern fighter jets cannot match—came about after a series of remarkable design innovations.