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12 Dec 2006
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INTERVIEW
Virtual microscopy gets machine-vision upgrade
James Tyrrell speaks with Hamamatsu’s Paul Cormack to get to grips with the technologies driving virtual microscopy.
IMAGING
Wavefront coding slims down imaging systems
A new imaging technique known as wavefront coding is helping designers to reduce the cost and weight of imaging systems. Andrew Harvey and Gonzalo Muyo look at how the technique is being applied to thermal imagers used by the military and emergency services.
SOLAR CELLS
Photovoltaics take a heavy load off soldiers
A US consortium is aiming to smash the solar-cell-efficiency record with a radical design that uses a lateral architecture and a dispersive concentrator. If they are successful, soldiers will be freed from the burden of carrying a 20 lb load of spare batteries. Richard Stevenson reports.
MARKET DRIVERS
Optical access: is cost still the sticking point?
Roy Rubenstein investigates why some geographical regions are so far ahead when it comes to FTTH deployment.
PHOTOBIOLOGY
Skin-cancer therapy gets OLED transformation
A Scottish physics professor and a dermatology consultant have developed a new way of treating skin cancers with light-emitting bandages. Matthew Peach finds out more.
PRODUCT GUIDE
Optical systems benefit from aspherical lenses
Aspheres allow designers to build smaller, lighter and simpler optical systems, and can be found in everyday products. Edwin Diaz provides a back-to-basics guide to the technology.
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