Cost hinders LED uptake
A high price-tag has held back the uptake of white LEDs for many lighting applications. Jacqueline Hewett asks Frank Steranka, vice-president of research and development at Lumileds, about the company's strategy for creating cheaper, brighter devices.
Interferometry gives eye camera a new lease of life
A retina camera that combines adaptive optics with optical coherence tomography is generating images of retinal cells with unprecedented resolution. Rob van den Berg discovers that it could lead to early detection of eye diseases such as glaucoma.
Cordless power meters offer convenient answer
Having the right optical power meter is vital, but the range available can make purchasing a complicated business. Our independent guide aims to help you make your decision.
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