Engineers produce a fisheye lens that's completely flat

To capture panoramic views in a single shot, photographers typically use fisheye lenses—ultra-wide-angle lenses made from multiple pieces of curved glass, which distort incoming light to produce wide, bubble-like images. ...

Metasurfaces enable improved optical lens performance

Producing the perfect color images we need and love often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now Penn State engineers have developed a new theory that solves the problem ...

Posters with depth effect -- 3D advertizing

(PhysOrg.com) -- Soon, manufacturers will be able to advertize with 3D posters that are remarkable for their hitherto unattained spatial effect. The casual observer need not use any special glasses. Modern lighting techniques ...

Novel X-ray lens facilitates glimpse into the nanoworld

Paul Scherrer Institute scientists have developed a ground-breaking achromatic lens for X-rays. This allows the X-ray beams to be accurately focused on a single point even if they have different wavelengths. The new lens ...

First galaxies were born much earlier than expected (w/ video)

(PhysOrg.com) -- Using the amplifying power of a cosmic gravitational lens, astronomers have discovered a distant galaxy whose stars were born unexpectedly early in cosmic history. This result sheds new light on the formation ...

New antireflective coating reduces stray light and reflections

Transparent plastic optical lenses can be manufactured cheaply and in any shape. However, a downside is that they reflect light just as much as glass does. At the K trade fair in Düsseldorf, Fraunhofer researchers are exhibiting ...

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