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Blogs

Health Benefits of LED Lighting Contribute to Quality Senior Assisted Living at BioStar Lighting’s Project The Piper

Research has shown that LED lighting has positive effects on health including reducing headaches, nausea, Alzheimer’s disease and related dementias, mood disorders, stress, vision loss and eye disorders. In addition to the energy savings, the health benefits make LEDs the ideal choice for healthcare and senior living facilities. Continue reading

LEDS, Light, Smoke and Sound

Giles Humpston, Applications Manager
Cambridge Nanotherm

LEDs and tungsten filament bulbs have two things in common. First, they convert electricity into light.  While neither technology is particularly good at this task, LEDs do at least manage to achieve around 40 percent electrical-to-optical conversion efficiency compared with about 5 percent for a traditional Edison light. In both cases the energy wasted appears as heat. Filament bulbs shed the heat by radiation and convection, while for LEDs the heat is removed by conduction through to a heat sink. Continue reading

Three Ways to Drive LEDs in an Increasingly Colorful World

Paul Golata, Mouser Electronics

In the era of low-power LEDs – when these electroluminescent chips could deliver little more than the glimmer from a glow worm – red LEDs dominated. We used them as status indicators in electrical and electronic equipment, sometimes employing a string of them to indicate relative levels. As materials science and the design LEDs and their substrates progressed, we found ways to create different color LEDs, to dissipate heat from the chips more effectively and to drive the devices to ever-higher power levels. Continue reading

Promoting Adhesion of Conformable Coatings to Multi-Component PCBs

Jeff Elliott, Technical Writer

Exposure to water, dust, oil, chemicals, movement and extreme temperature changes can damage circuitry.  This problem is exacerbated for multi-component printed circuit boards (PCBs) found in outdoor devices that must withstand a wide range of weather conditions for decades with little or no degradation in performance. Vulnerable devices include environmental sensors, broadcast equipment, power supplies, billboards/signs, automotive components, solar panels and outdoor lighting. Continue reading

Recipe for IoT – Empowered Computers, Lots of Sensors, Lots of Data and Management of Human Factor Concerns

David Bay, Corporate Engineer
OSRAM SYLVANIA Inc.

Given the relative immature status of RFID and internet technologies in 1999, I commend Mr. Ashton for recognizing the importance of such technologies as well as his identification of use cases enabled by their simultaneous use. Continue reading

The Cheese Sandwich and Chip on Heat Sink Technology

By Giles Humpston, Applications Manager | Cambridge Nanotherm

LEDs share two common attributes with most other electronic components. First, they produce heat. Secondly, they do not like getting too hot because excess heat degrades performance and causes premature failure. A notable exception to the ‘heat-is-bad’ rule is thermoelectric coolers but to discuss these components requires entering a philosophical debate about “what is temperature?”, “do we need it?” and “how will it vote in the next election?”. Continue reading

Advancing Light through Independence

By Jes Munk Hansen, CEO | LEDVANCE 

Independence.  This word has special value in the United States this month with the Fourth of July celebrating the nation’s independence from Great Britain in 1776.   It has also significant meaning in the lighting industry.  Many major lighting companies, including OSRAM, are separating their lamps organizations to concentrate on other strategic initiatives.  Like “the shot heard around the world” with the start of the American Revolutionary War changing the global landscape forever, this obviously has created a ripple effect of change for the LED industry.  Continue reading