1. Bad Color RenderingCurrently, a white LED produced from a blue LED covered with yellow phosphor generally has bad color rendering (below 80%), as the emitted light lacks red and does not restore this color correctly. But a TL tube or a compact fluorescent lamp may have color rendering indices from 80% to more than 90%.

Learn the fundamentals of thermal design and how it can be implemented using practical methods and materials to produce acceptable high-power LED applications.LED manufacturers are experts regarding the thermal design inside of the LED package. They can provide the relevant data to describe the thermal performance, and they also have good ideas about how an LED should be soldered to the circuit board. But when it comes to the thermal path between the LED leads and the environment, you are on your own.

Event and Entertainment Lighting solutions provider MattLX is inviting industry professionals to the MattLX Meet, Greet and Scenic LED event to be held on the 24th & 25th April 2008 at Unit F, Imber Court Trading Estate, Orchard Lane, East Molesey. Surrey KT8 0BY.

Dolby Laboratories, Inc. (NYSE:DLB) and SIM2 Multimedia are proud to showcase a new prototype high-dynamic-range (HDR)–enabled LCD flat-screen display using Dolby’s new light emitting diodes (LED) local dimming technology. Dolby’s HDR technologies utilize the capabilities of LED-based backlight units (BLUs) to provide outstanding contrast combined with crisp brightness to deliver picture quality that matches real-world visual perception of depth, detail, and color.

At-large Councilman Ronnie Steine has introduced a bill that will prohibit Light Emitting Diode (LED) signs in residential zoning districts.The bill is in response to the bogged-down piece of legislation fellow At-large Councilman Charlie Tygard had sponsored. Tygard's initial bill would have allowed LED signs such as the ones often seen at pharmacies to be used by religious institutions and schools in residential areas.

LED International Holdings Ltd. reported a much lower first-half pretax profit, as the company did not take up certain 'high-margin' orders due to the consolidation and moving of its key production plants in Shenzhen, China.The LED screen maker posted a pretax profit of about HK$2.62 million for the six months to Dec. 31, 2007, compared with about HK$13.68 million in 2006, on revenues of about HK$46.61 million, down from HK$55.48 million.

Functionality improvements to the LED Refrigerated Display Lighting System, an ecomagination product from Lumination, LLC, GE Consumer & Industrial's LED business, enable further energy savings for retailers in new and retrofit applications. Based on customer needs, Lumination technologists and engineers have redesigned the LED Refrigerated Display Case System to incorporate full dimming control and motion sensing.

Kansas City Power & Light Co. has installed energy-efficient LED lights to wash the bridge in color at night.Spring pastels can become red, white and blue for Independence Day and other colors for special events.In all, there are 1,224 LEDs clustered in 52 spotlights.It is the second such lighting installation the utility has done. The first was the Wornall Road Bridge on the Country Club Plaza.

Troy-based ilumisys Inc. will begin work with the State of Michigan to provide light-emitting diode (LED) replacement lighting for fluorescent tubes and collect research data in the state's Escanaba office building.Over a 4-year period beginning this month, ilumisys plans to install three successive generations of LED lighting, each to replace 200 4-foot-long fluorescent tubes -- about 25% of those in the two-story, 31,000-square-foot building.

LUXEON power LEDs from Philips Lumileds are poised to rapidly increase their presence in front-of-vehicle applications with expected European Union regulations mandating daytime running lamps (DRLs) on new cars beginning in 2011. One of the major factors driving LUXEON use will be the dramatic reduction in DRL power consumption (Watts), (on the order of 80%), made possible by energy-efficient LUXEON technology.

The technology of LED is able to convert electricity with virtually no waste heat.The acronym stands for light emitting diode, and this technology uses a tiny fraction of energy consumed by conventional incandescent and fluorescent bulbs for a given amount of light. The working life of LED lights is measured in tens of thousands of hours, too.  LED technology is poised to boost the energy efficiency and reliability of area lighting in a big way. Poised, but not quite there yet for all applications.

Various lighting products are offered by Lightech Australia under categories like fibre optic lighting, LED lighting and lighting control. The products included in fibre optic lighting are fibre optic fundamentals, fibre optic control, fibre optic cables, fibre optic cable specs and fibre optic light sources.LED lighting has LED lighting fundamentals, LED control, LED strips and LED fixtures. Products under lighting control are Dynalite and system integration.

Design LED Products Ltd has moved into new offices within the Alba Innovation Centre in Livingston. The move gives Design LED the capacity to expand its design, sales and product marketing teams in the coming months.

The U.S. Air Force wants to shed new light on landing sites used for rapid response and expeditionary missions - and RTP-based Cyberlux is delivering a soluion based on light-emitting diode technology.The United States Air Force Air Mobility Command (AMC) carried out field testing of a new LED product, created by Cyberlux  (OTC Bulletin Board: CYBL)  this week at Fort Huachuca in Arizona.The new BrightEye 4M Tower Portable Illumination System meets specs outlined by AMC for both standard white lighting and covert night-vision lighting modes.

Light- emitting diodes (LED) and Adaptive Lighting Controls - the next generation of lighting technology showcased at LEDisovery event in Toronto 

ilumisys, Inc. today announced it will begin work with the State of Michigan to provide light-emitting diode (LED) replacement lighting for fluorescent tubes and collect research data in the state's Escanaba office building.

MIC Electronics, a player in Light Emitting Diode (LED) display systems has received an order and license from Delhi Metro Rail Corporation for installation and maintenance of 25 full colour day and night LED Video display boards at 8 metro stations of line-3.The installation is worth Rs 45 crore and will be implemented over the next six months. These LED displays will be networked and controlled from a single location and are first of its kind for Indian Railways.

Neo-Neon International, a Hong Kong-based company that uses LED systems for neon light replacement, reportly introduced its next generation Neon-Flex product line. The company says its Neon-Flex Plus model exceeds the lumen performance of glass neon lights. Neon-Flex is offered its three levels of high performance -economical, standard, and the new LED Neon-Flex Plus.

Michael Hayden and Lighting Science Group (LSG) unveiled the nature-inspired lighting installation crowning the New U.S. Bank Tower in Sacramento, California Michael Hayden, an artist known for light sculptures, revealed the latest product of his creative vision atop the building located at 621 Capital Mall.

Avery Weigh-Tronix is launching its XR Series of easy to read LED remote displays. Available with a choice of 5, 11 or 17 cm digits the high intensity, red LED characters can be seen from up to 325 feet and with a filtered lens are clearly visible both indoors and outside. These easy to read displays mean that operators do not need to walk around a site checking readouts. When integrated to a weighbridge, for example, there is no reason for a driver to leave the safety of his or her cab. 

According to industry sources in Taiwan, Demand for LED backlighting used in small-and-medium-size panels for applications such as low-cost PCs and digital photo frames are expected to increase by 20-30% in 2008.

Lightscape Technologies Inc. (OTC Bulletin Board: LTSC), a provider of large scale LED screens and installations, LED lighting design solutions, and advanced lighting products, today announced that it has commenced an LED installation project with the flagship retail outlet of PCCW Limited in Hong Kong.

O2Micro International Limited, a leading supplier of innovative power management products is pleased to announce that several of the top-tier notebook computer manufacturers have chosen O2Micro's LED Backlight drivers for their high-end models.

Streamlight has introduced its brightest LED tactical flashlight ever - the Super-Tac. The new light is a powerful, versatile new tool for tactical and law enforcement professionals operating in low-light situations.

Japan's National Institute of Materials Science (NIMS) announced that it successfully prototyped a white LED composed of red and green phosphors and a blue LED chip. By arbitrarily changing the ratio of red, green and blue components, a light source can be designed in accordance with the color characteristics, etc required for a color filter. Used for an LCD panel backlight source, the white LED exhibited a color gamut of 91% of NTSC in the simulation.

Mar. 25, 2008 - Intel's decision to locate a 300mm fab in Dalian, China, has spurred interest in the area for other industries, including LED makers from Taiwan, with Epistar and Everlight Electronics considering building a joint facility there, according to the Taiwan Economic News.

Big Beam Emergency Systems announced their newest addition, the world's first low bay LED emergency light, the LBE series. The LBE series is great for warehouses, industrial, and retail applications where the typical mounting height is 15-25 feet.

Nexxus Lighting has introduced what it claims is the industry's first LED floodlight for general illumination that operates directly from line voltage.  The SV Lighting business unit of Nexxus Lighting has introduced what it describes as the industry’s first LED floodlight for general illumination that operates on direct line voltage, without the need for an internal or external power supply.  

US International Trade Commission institutes Section 337 investigation on certain short-wavelength LEDs, laser diodes and products containing same.

Elation Professional has made a major breakthrough in RGB LED fixtures: the introduction of tri-color LEDs. Instead of each LED lamp being a single color, the new tri-color technology makes it possible for each lens to contain a combination of three 1-watt LEDs — red, green and blue. This advanced 3-color innovation gives users tremendous advantages over single-color LEDs, including improved RGB color mixing, the elimination of multi-color shadows, and a much brighter, more even field.