In brief: LLF, Sofradir, Riber, WJ Communications
LED Lighting Fixtures (LLF), the North Carolina-headquartered producer of LED-based lighting products, has been awarded its first US patent.
The company's 7,213,940 patent details a method for producing white light from blue and red LED chips and a green "lumiphor". This differs from conventional approaches that either combine the light from red, green and blue LEDs, or use a blue-emitting chip and a yellow phosphor.
Specifically, LLF's technique involves combining the output from a 430 nm - 480 nm chip that pumps a 555 nm - 585 nm lumiphor with the 600 nm - 630 nm emission from a second chip.
LLF claims that this approach, which is used in all its products, delivers an efficacy of up to 80 lm/W and a color rendering index of up to 92.Sofradir wins US Army contract
French infra-red detector maker Sofradir has won a multi-million dollar contract to supply second-generation HgCdTe detectors to the US Army.
"Our push into the US market, stronger ties with US customers and suppliers, and our investment in a new facility are all part of the ambitious program to expand," remarked Sofradir CEO Philippe Bensussan.
The company is current building a new €9 million ($ 12.2 million) facility for production of third generation detectors, which will also scale up manufacturing from 2 inch to 4 inch material (see related story).Riber's backlog grows to €10.3 million
MBE epitaxial equipment manufacturer Riber has posted sales of €1.3 million for the quarter ending March 31, 2007.
Three recent orders for research machines have boosted the French company's sales order backlog to € 10.3 million.
The company says that it is on track to hit its fiscal 2007 sales forecast of € 16-18 million.WJ expands broadband amp portfolio
US-based RF chipmaker WJ Communications has launched a range of broadband amplifiers based on InGaP/GaAs HBT technology that are targeting next-generation cellular infrastructure, cable TV, and other wireless applications.
The new family of amplifiers cover a frequency range from 50 MHz to 4000 MHz, feature up to 20 dB of gain, can be operated from a +5V supply, and have built-in active biasing circuitry.