For decades, I have been interested in the application of small-diameter aperture optics, or SDAO, to enhance visual function ...

Ahead of The Head and the Heart's performance tonight at Red Hat Amphitheater in Raleigh, band co-founder Jon Russell talks ...

In this paper, we propose a broadband metamaterial aperture antenna with focused beam in K-band (17 GHz to 27 GHz), which is a new randomly stochastic radiation source for microwave staring correlated ...

As if the high-end cinema lens marketplace needed any more competition, Simmod Lens has launched its own lens manufacturing ...

Abstract: The simultaneous generation of an electron beam with high energy and high current density with a high-fill factor is challenging for a backward wave oscillator (BWO) and other linear-beam ...

Shutter speed, along with aperture value, is one of the fundamental properties of exposure: ie, how much light your camera ...

Pinhole pupilloplasty is a simple and low-cost solution to restore vision in patients with highly aberrated corneas and can ...