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TECHNOLOGY / LED
launched it across the USA. Philips: demonstrate the Endura LED retrofit lamps, see figure 9, providing up to 806 lumens in a 12.5W package (~64lm/W) equivalent to a 60W lamp. In addition, the use of a new design and remote phosphor technology delivers the same soft white light and shape consumers are familiar with in an incandescent and it will work with standard dimmers. It has a CCT of 2700K and a CRI of 80 and its average life is listed at 25,000 hours. The EnduraLED is available at the end of 2010 and it is rumoured to retail at Home Depot at $39.97.
MAY Cree: launch a new high-performance BR30 retrofit lamp, the LBR-30 aimed at replacing energy-wasting incandescent lamps commonly used in tracks, commercial and residential recessed downlights. The new lamp delivers 600 lumens with flood or wide flood distributions, while only consuming 11 watts.
Cree also increase the performance of its LRP-3 LED lamp. A narrow beam spotlight with tens of thousands of units installed in offices, retail, grocery stores and museums across North America, the LRP-38 delivers exceptional colour quality and is designed to last 50,000 hours. The enhanced LRP- 38 has received a 20 percent boost in performance, and a 30 percent increase in overall efficacy, enabling replacement of 75 Watt incandescent lamps while consuming 85 percent less energy. Lumen output has increased to 600 lumens, while input power has been decreased to 11 watts.
Luminus Devices: announce the introduction of the SBT-90 PhlatLight LED, the industry’s brightest, high power, surface-mount (SMT) package. This breakthrough product is ideally suited for entertainment, display, medical and automotive applications that require an LED package that emits directly into air instead of having an integrated dome lens. The SBT-90 contains a single 9mm2
chip,
so the optical brightness can’t be matched by tiled arrays of traditional 1 watt LEDs. The ability to deliver more lumens through their optical architectures in a compact and highly integrated form factor becomes a game changer as new opportunities emerge to apply LEDs to demanding applications. The SBT-90 generates more than 1,800 lumens (6500K, 70+CRI) from a small 10mm x 11mm package footprint. Utilising high thermal conductivity ceramic packaging, the SBT-90 features an extremely low thermal resistance of 0.64°C/W. The device has a nominal input power of 10W, but can be operated continuously at drive conditions up to 35W. Due to its
Figure 10: OSRAM’s record Red LED in July
low profile window and direct chip-to- air emission, the SBT-90 is optimised for coupling to proximity optics and optical light engines, thereby maximising optical throughput while maintaining long life and high reliability. Typical applications for the SBT-90 include entertainment wash lighting, edge-lit displays, projection systems, fibre coupled medical lighting and automotive forward lighting. Available in an SMT package, the SBT-90 integrates seamlessly with standard SMT manufacturing processes and equipment. PhlatLight LEDs are mercury-free, highly reliable and provide a lifetime of 60,000 hours with lumen maintenance of greater than 70 percent.
JUNE
OSRAM: introduces the new OSTAR with more light output, in a mere 3.9 mm x 3.6mm package. Instead of 4A, the new LED array can now be pulsed with 6A, and it achieves 350lm in amber, 600lm in green and 165lm in blue in pulsed mode (typically 120Hz, 2ms, Ts= 25°C). Thanks to a new package material its thermal resistance has been reduced to 3k/W and the enhanced performance is achieved by a 2mm2
chip
that benefits from improved epitaxy processes and even power distribution via additional bond wires.
JULY
OSRAM: succeed in increasing the efficiency of red thin-film LEDs by 30% – a new record. The record efficiency for an LED of 119lm/ W at an operating current of 350mA (136lm/ W at 70mA) as shown in figure 10 had been achieved by the latest generation of a red 1mm2 thin-film chip (InGaAlP). The chip was accommodated in a Golden Dragon Plus package and emitted at a wavelength of 615 nm. Its efficiency has been measured at 44% (49% at 70mA), and even exceeds 50% for a wavelength of 642nm.
Cree: take leadership position in the LED AUGUST
Philips Lumileds: announce their Lumiramic phosphor technology combined with the new LUXEON Rebel ES parts provide exceptionally small colour variation for new white LEDs. The overall distribution of the manufactured LED product is significantly smaller than was previously possible or is possible with other solutions as shown in figure 11. With over 80% of the emitter production falling within a 3 MacAdam ellipse area within the ANSI bin space, luminaire design is simplified, unit-to-unit consistency is reality, and the supply chain is more certain and reliable
Philips Lumileds also announce that it has achieved its billionth LUXEON power LED.
industry with the addition of the industry’s smallest warm and neutral bins to its award-winning multichip XLamp MP-L and MC-E EasyWhite LEDs. The breakthrough offers a single two-step MacAdams ellipse bin per colour temperature, optimised to achieve incandescent-like colour consistency and eliminating the need to purchase multiple small bins and perform complex colour mixing.
ENFIS: exhibit their latest range of UNO Plus Products complete with drivers, optics and thermal management at the Guangzhou International Lighting Exhibition. Following an increasing trend of colour tuneable lighting fixtures ENFIS launch a high-quality, tuneable, efficient, LED light engine range suitable for integration into smaller standard fixture sizes such as AR111 or AR70 as well as spotlights and downlighters.
The 40W modules are available in the following versions: • High CRI tuneable: >90 CRI from 3000K to 6000K • Warm white tuneable: 1800K to 4100K • RGBW: 3000K - 6500K + full RGB
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