Ultra-thin camera creates images without lenses

Traditional cameras—even those on the thinnest of cell phones—cannot be truly flat due to their optics: lenses that require a certain shape and size in order to function. At Caltech, engineers have developed a new camera ...

Prototype uses multi-lens display for 3-D depth (w/ video)

(PhysOrg.com) -- Numerous 3-D displays that went on parade at last month's CEATEC 2011 in Japan touted glasses-free features, but one 3-D display presentation used a technique of special interest. Researchers at Tsukuba University ...

Hot embossing glass -- to the nearest micrometer

The lens is what matters: if lens arrays could be made of glass, it would be possible to make more conveniently sized projectors. Fraunhofer researchers have now developed a process that allows this key component to be mass ...

Mini-projectors -- maximum performance

(PhysOrg.com) -- The number of mini-projector devotees keeps growing. The combination of a new kind of optical structure with high-performance LEDs enables completely new compact and brilliant lighting and projection systems.

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 ...