Following research at Sheffield-based LED packaging firm Litecool, narrow beam angles from LED packages without secondary optics or reflectors look closer. The proof-of-concept device produced a beam ...

Osram has added to its Oslon Black portfolio for infra-red illumination with a ±25° narrow beam version – called SFH 4718A – narrow enough to do away with secondary optics for cameras with a medium ...

An LED and a semiconductor laser (or laser LED) work in essentially the same way, that is, light is emitted as electrons and holes combine, with emission wavelength dependent upon the materials used.

Litecool has shown promising results for new LED package design that gives focused light beams with no secondary optics or reflectors. Sheffield, UK - Litecool has been working on various LED package ...

Incandescent lamps have almost vanished from many new avionics designs. Now high-efficiency light emitting diodes (LEDs), especially in white, have become inexpensive and readily available. LEDs are ...