The diffraction spikes so familiar to us in space images are an intrinsic property of the telescope. Reflecting telescopes have two mirrors: a large primary and a smaller secondary. Light hits the ...

From within a glowing web expanding outward from an epic explosion, a dead star is flashing pulses of radio light at Earth. This is the Crab Pulsar, and within its radio pulses is a strange signal ...

STRL is working on research and development of a holographic display that can reconstruct natural 3D images with a sense of depth, without the viewer having to wear special glasses. The holographic ...

Vision is not perfect. When grating patterns are used as resolution targets, the highest spatial frequency resolvable by humans is about 50 cycles per degree of angle subtended at the observer's eye 7 ...

In this series of articles, we will introduce three-dimensional (3D) images and augmented reality (AR)/virtual reality (VR) technology aiming to provide “immersive content” allowing a highly realistic ...