Japan LED Association (JLEDS) released a technical roadmap of high power white LEDs for use in lighting systems.

The roadmap shows the luminance efficiency, etc, until 2020 for each of the high efficiency models, which emit standard white light, the high color rendition models, which have improved color rendering properties, and the light bulb models, which output light in incandescent colors. According to the roadmap, a luminance efficiency of 150lm/W will be achieved in about 2015.

While highly efficient fluorescent lamps generally exhibit a luminance efficiency of about 100lm/W, the luminance efficiencies of the high efficiency model, the high color rendition model and the light bulb model are about 100lm/W, 80lm/W or higher, 100lm/W as of 2008. JLEDS forecasts that these figures will increase to about 130lm/W, about 120lm/W and 90lm/W or higher in 2010, and reach 160lm/W or higher, 140lm/W or higher and about 130lm/W in 2015.

JLEDS is a Japanese industrial organization that promotes LED-based lighting systems. The latest roadmap is a revised version of white LED technical roadmap released by the organization in September 2005. The roadmap is based on the outcome of a questionnaire that JLEDS conducted for its member companies.

The roadmap estimates that the LED lighting systems will be widely used mainly in commercial facilities around 2010, when the luminance efficiency exceeds 100lm/W. It also forecasts that the use of LED lighting will be promoted in offices and residences around 2015, when the quality of light, eg the color of light emitted from the white LED, is improved.

The estimated sales of LED lighting systems in Japan will be about ?400 billion (US$3,838 million) in 2010 and about ?800 billion in 2015.

The roadmap also discusses the issues for the promotion of LED lighting. Among them, it cites the cost problem as the biggest hurdle. An LED lighting system is reportedly 5-10 times more expensive than fluorescent lighting equipment or an HID system. This is because the price of light source per luminance (yen/lm) of a white LED is two orders of magnitude higher and the white LED lighting system additionally requires a heatsink, a power supply, a lens, etc.

Thus, it is important to make efforts to reduce the cost of not just the light source but also the peripherals, JLEDS said. The improvement of light quality is also unavoidable because color temperature and color rendering properties are highly valued in indoor lighting, according to the organization.

Cambridge UK - Moritex, specialists in machine vision and inspection, has announced the new MSPP Series of LED Spot Projectors designed to replace conventional halogen point light sources as well as fibre optic illumination solutions.

Available in two versions, for narrow and wide lighting area applications, MSPP LED Spot projectors provide stable, uniform illumination improving the performance of image processing applications. Compact and lightweight in design, MSPP LED Spot projectors offer amazingly bright illumination over a wide range of working distances (500-2000mm) and lighting areas. Consequently the new LED light sources allow for a wide range of movement within the working distance and can be used even when robots are close to inspection targets. Using proprietary technology, MSSP LED Spot Projectors achieve low temperature emission and low energy consumption making it possible to save energy and reduce environmental impact.

Constructed to IP67 standards to stop the ingress of water droplets or oil mist, MSSP LED Spot Projectors can be installed in most machine vision working environments. The LED light source cover glass is replaceable making maintenance easy to perform. MSSP LED Spot Projectors offer a long operating life and are designed to be RoHS compliant. MSSP LED Spot Projectors use a versatile connector, making it possible to use cables that support spatter.

Benefiting from over 30 years experience and expertise in the creation, manipulation and control of light, Moritex has earned an international reputation for top quality, high performance lenses, fibre-optic illumination and optical lensing systems for various machine vision and inspection applications.

Cemusa, the out-of-home media company that holds the street furniture contract for the New York City Department of Transportation, announced Tuesday it has introduced light emitting diode (LED) display panels on 20 bus shelters. The ad displays provide current time and temperature and are capable of scrolling text.

The displays were introduced as part of an ad campaign by iShares. After one month, the displays will be opened up to other advertisers.

“We’re excited to have the opportunity to include this new technology element to our street level advertising program,” said Gordon Abel, director, media and digital marketing for iShares. “The new LED display nicely draws your eye to the advertisement and reinforces our commitment to innovation.”

Cemusa is currently building out a street furniture program for New York as part of a 20-year contract that will end in 2026. To date, 1,128 bus shelters have been installed and more than 1,000 existing structures have been painted or repaired.

While Taiwan-based LED maker Ledtech Electronics shipped small-volumes of LED light bars to the US last May for use inrefrigeration equipment and received LED light bar orders from Coca Cola this March, Everlight Electronics also aims to make inroads into the US market for LED light bars used in refrigeration equipment, and it expects to begin shipments in small volumes by the end of 2008.

Everlight is currently sampling its LED light bars to the American Trucking Associations (ATA), and validation will require about half a year, the company stated.

Facing the new rival, Ledtech is not worried about competition in the future. Ledtech noted that there is room for more than one competitor in the LED light bar market due to growing demand for LED light bars for use in refrigeration equipment.

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