Researchers have fabricated and tested flat lenses called Fresnel zone plates (FZPs), but did so for the first time using only common semiconductor manufacturing equipment, the i-line stepper ...

Patrick has an eye for photography and a passion for everything mobile. He is a colorful raconteur who will guide you through the ever-changing, fast-paced world of phones, especially the iPhone ...

The best mobile video editing apps will amaze you with their capabilities. PC hardware is nice, but it’s not much use without innovative software. I’ve been reviewing software for PCMag since ...

Cloud gaming has become an integral part of the videogame industry, with Microsoft’s Xbox Cloud Gaming (often called xCloud for short) leading the charge and NVIDIA GeForce Now having a larger ...

Do you want a smartphone that can multitask well, has a good camera for taking selfies, can be played on when you're not in class, and will last you all day long? In any case, we've compiled a ...

Patrick has an eye for photography and a passion for everything mobile. He is a colorful raconteur who will guide you through the ever-changing, fast-paced world of phones, especially the iPhone ...

Ever noticed the overwhelming number of similarly-specced budget smartphones in the market? That’s because affordable smartphones—especially those under ₹15,000—dominate sales in a price ...

Terms apply to American Express benefits and offers. Visit americanexpress.com to learn more. Tracking your spending is often the first step to getting your finances in order. That can easily be ...

This paper report shows the combined effective results of solar energy, nanotechnology and the use of Fresnel lens array. By the use of these parameters there can be a tremendous improvement in the ...

Abstract: Here, we propose a fully metallic implementation of a Luneburg lens operating at Ka-band with potential use for 5G communications. The lens is implemented with a parallel plate that is ...

Filter by the criteria that matter to you - the carrier (Verizon, AT&T, T-Mobile or Dish/Boost Mobile) and/or the type of device you want to use a data plan with. Click through to learn more about ...

A zoom lens with an effective focal length starting at around 18mm or wider (once any crop-sensor multiplier has been taken into account) is a good choice for landscapes. Top-end 'pro' zooms generally ...