LEDs ♦ news digest
Rubicon to sell $28.2 million of common stock
The net proceeds will be used to fund R&D of new products, capacity expansion and general corporate purposes
Rubicon Technology, Inc. a provider of sapphire substrates and products to the LED, semiconductor and optical markets, has announced the sale of $28.2 million of its common stock pursuant to an underwriting agreement with Canaccord Genuity Inc.
The last reported sale price of Rubicon’s common stock as reported by the NASDAQ Global Market on January 7th, 2014 was $11.44 per share.
Rubicon intends to use the net proceeds to fund research and development of new products, for capacity expansion and for general corporate purposes. Closing of the offering is expected to occur on or about January 14th, 2014, subject to customary closing conditions.
In addition, Rubicon has granted the underwriter a 30- day option to purchase additional shares of common stock equal to up to 15 percent of the number of shares of common stock sold in the offering.
Canaccord Genuity Inc. is acting as sole book-running manager for the offering.
The offering is being made pursuant to an effective shelf registration statement filed with the Securities and Exchange Commission.
SemiLEDs C35 LEDs accentuate Hotel Alpha in Moscow
The dramatic facade lighting delivers 70 percent in energy savings
The tourist hotel complex (THC) Alpha in Moscow recently received a dramatic new facade wall-wash from Twenty First Light Ltd.
This is a Russian manufacturer of LED luminaire solutions, using SemiLEDs Corporation C35 colour and warm white LEDs.
With substantial product support from SemiLEDs, Twenty First Light developed three types of saturated purple and warm white spotlights for the project to achieve both a powerful visual impact and high reliability for the distinctive lighting scheme.
“THC Alpha is a high profile landmark in Moscow, and as such, this was a high-exposure project for Twenty First Light that demanded a solution which would start out visually appealing, and then stay that way over the life of the installation,” comments Sergey Stakharny, Director of Twenty First Light. “It was very important to us that the LED manufacturer both understood what we were trying to achieve, and would provide flexible support that minimised our engineering challenge while streamlining the project and maximized the reliability of the installed luminaires. SemiLEDs was able to meet those needs, contributing to the success of this program.”
Twenty First Light tackled the project by developing three distinct types of luminaires, including 40W saturated purple spotlights for the individual balconies on the building’s side, as well as narrow-beam 100W purple and 70W warm white spotlights illuminating the building facade for a colour-fade effect from bottom to top.
In addition, a series of prototype 150W RGB colour- changing spotlights, also based on SemiLEDs C35 LEDs, were developed to allow on-site testing of different hue and saturation effects. With the final selection being a saturated purple, Twenty First Light was able to optimise the performance and value by engineering a static combination of blue and red LEDs matching the specified and tested shade.
The LEDs were surface mounted on a single aluminium array plate, and supplemented by secondary optics to achieve a 10-degree beam angle. The 100W purple and 70W warm-white spotlights respectively replaced 400W and 250W high pressure sodium lamps netting over 70% energy savings.
“We were very pleased to support Twenty First Light in the development of these customized luminaires constructed around SemiLEDs C35 family of LEDs,” comments Ilkan Cokgor, Executive VP of Sales and Marketing for SemiLEDs.
“One big promise of LEDs is to enable the kind of design flexibility that Twenty First Light devised, allowing the
January / February 2014
www.compoundsemiconductor.net 81
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