| At Lightfair 2012, Lighting Science Group (LSG) demonstrated how the company is integrating controls and LED products across its product lines. "We're taking controls and intelligence packages and wrapping LED products around them," said Jim Haworth, chairman and CEO of LSG. One example of this combination is the company’s recently launched Forefront LED luminaires, available in area, flood, high bay, pedestrian (Fig. 1) and wall-mount versions, which can be controlled using PixelView occupancy sensing and video processing.
In a demonstration at Lightfair, David Henderson, chief development officer of LSG, showed how PixelView camera-based motion sensing can be programmed to sense disturbances in a specific area. "In the past, we used passive infrared, but what you find in different applications and in very cold or very hot climates, you can get dead zones where performance drops off," said Henderson. Instead, PixelView uses a CMOS camera, similar to that used in automotive applications, and the motion detection can be confined to any part of the camera’s field of view. For instance, if the user wishes to program the camera to ignore a heavily trafficked area and instead focus on an area around a car, PixelView can be programmed to do that.
Each Forefront LED product is designed as a one-for-one replacement of 100-750W HID fixtures, requiring 50% less energy usage. The flood luminaire features lumen output up to 23,000 lm, and can be used for façade, sign, landscaping or architectural lighting.
Also at Lightfair, LSG recently introduced its RoadMaster LED street light, which is designed to be a low-cost replacement for HPS fixtures. Approximately 4000 100-150W HPS fixtures are currently being replaced in Puerto Rico.
Lighting Science Group is also preparing to roll out a solar-powered street light that will be capable of 3-day autonomy. Named FreeLED, the luminaire will contain all power electronics in one unit and will use a next-generation lithium iron phosphate (LiFePO4) battery, which offers better thermal and chemical stability than other lithium-based batteries. According to Lighting Science Group, the LEDs used in this luminaire have an efficacy of 133 lm/W.
Osram Sylvania, Juno Lighting introduce incandescent-like dimming
Both Osram Sylvania and Juno Lighting introduced LED lamps capable of incandescent-like dimming at Lightfair 2012 to serve the needs of residential and hospitality environments.
Sylvania has released its Ultra PAR38 with CCT dimming, which allows dimming from 3000K to 2000K by using a combination of blue phosphor-converted LEDs and amber LEDs, according to Ellen Sizemore, product marketing manager for Osram Sylvania. She stated that if this incandescent-like dimming proves popular, Sylvania will make the dimming available on all its product lines.
Juno Lighting’s Chris Walsh, vice president of product management, explained that the company’s WarmDim recessed downlight (Fig. 2) received Lightfair’s Technical Innovation Award for the most forward-thinking advancement in LED lighting. WarmDim uses an on-board microprocessor to dim from 3000K to 2000K and is available on 4, 5 and 6-in downlights. The 600-lm downlight uses 14W of power. The downlights are available in retrofit or new installation versions.
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