Digital Camera World

Epson Lifestudio Flex Plus 4K Pro projector review

The Epson Lifestudio Flex EF-72 is a 4K projector designed to look like the nicest piece of furniture in a smart home. Is it ...
Digital Camera World

Godox ML80Bi review: a continuous studio portrait light that you can use anywhere

Many photographers will already be familiar with Godox lighting solutions, such as the Godox V480 compact on-camera flash or ...
IEEE

3-D Printed Circularly Polarized Modified Fresnel Lens Operating at Terahertz Frequencies

Abstract: In this paper, a novel 3-D printed circularly polarized (CP) modified Fresnel lens antenna operating at 300 GHz is introduced. By virtue of the superior geometric flexibility of the 3-D ...
IEEE

Fresnel Lens at Millimeter-Wave: Enhancement of Efficiency and Radiation Frequency Bandwidth

Abstract: In this paper, the performance of Fresnel lens antennas is investigated in detail. The performance is evaluated in terms of aperture efficiency and stable radiation pattern over a wide ...
autonews.autoua

Oracle Lighting unveiled LED headlights without external lenses

Oracle Lighting unveiled LED headlights without external lenses at the SEMA show in Las Vegas. As early as January 2026, these headlights will be available for purchase to replace the factory ...