LED Luminaries

LED news and insight from our technology editor Steve Bush, who has been messing with LED lighting for more years than he would care to remember.

Latest Tech News About LED Components

Osram achives IR LED high

Osram has pushed up the power of its 850nm Oslon Black leds, upping output to 800mW from 630mW in the ‘A’ suffix version of its SFH 4715. This is a 90° led intended for security illumination. For feeding narrow-beam reflector optics, there is also a 150° SFH 4716A. For…

Read More

Silicone Lenses for COB LEDs

   Khatod has introduced silicone lenses for CoB arrays, called SIO3. The material has been chosen for its: sustained transparency over years, resistance to yellowing, UV-resistance, optical efficiency, lack of birefringence, temperature resistance (-40 to 150°C, 200°C peak), and flexible at low temperatures. Designed for streetlights, depending on…

Read More

Nichia argues for novel mid-power led encapsulation

Nichia has published a white paper discussing encapsulation materials for reliable mid-power leds. It is quite detailed, and includes Nichia’s critisism of polyphthalamide (PPA – its benzine rings photo-degrade). The firm’s replacement is decribed as ‘thermoset composite and inorganic materials’, in some sort of matrix, it appears…

Read More

Cavers and miners will be happy

Cavers and miners will be happy, as Ledil has made a collimator especially for them. Called Crystal, beams down to +/-1.5° are possible. There are two products: Crystal-RS and Crystal-Mine. “According to mining head lamp specifications Crystal-Mine has 10% added illumination over the cut-off area…

Read More

Lens gies narrow beam and colour mixing

Geri-RZ is a 45mm TIR lensfrom Ledil, intended to produce a narrow beam from RGB leds, with good colour mixing. Its mixing is based on the proprietary ‘RZ’ surface. “Very good color uniformity can be achieved with this micro-lens structure without an additional mixing chamber,” said the firm…

Read More

Lumileds hits 10,000 lm with CoB arrays, at 100 lm/W

Aiming at replacing 70-100W ceramic discharge metal halide (CDM) lamps, Lumileds has introduced ‘Luxeon CoB 1211′ arrays – with a 19mm diameter light source on a 28x28mm tile. Efficacy is 93-130 lm/W, depending on colour temperature and CRI of the luminaire. The 10,000 lm and 100 lm…

Read More

Molex pre-wired LED array holder

Aiming to get secondary optics closer to array-style LEDs, Molex has introduced a low-profile COB holder.  “The key design challenge for LED accent lighting luminaires is to get secondary optics very close to the light emitting surface of the LED. Any reduction in the distance between the LED…

Read More

LED Engin's third generation LuxiTune dims to 0.5%

LED Engin’s ‘LuxiTune Generation 3.0′ light engines can replace a 120″ halogen lamp, dim to 0.5%, and have two selectable dimming curves: Halogen-like 1,600K to 3,000K, and colour temperature (CCT) tuning between 2,100K and 4,300K.  For lots more on LuxiTune 3.0…

Read More