LED-based products must meet photobiological safety standards: …
WEBNov. 29, 2011. The potentially complex procedure of evaluating LED photobiological safety is now a legal requirement in Europe, but few countries have yet followed the European mandatory-testing lead. LESLIE LYONS discusses the implementation of the IEC62471 standard after an in-depth look at the measurement of radiance and irradiance.
What is an LED? - LEDs Magazine
WEBSep 1, 2004 · In the simplest terms, a light-emitting diode (LED) is a semiconductor device that emits light when an electric current is passed through it. Light is produced when the particles that carry the current (known as electrons and holes) combine together within the semiconductor material. Since light is generated within the solid semiconductor ...
Running LEDs from an AC supply
WEBMay 2, 2006 · To run an LED-based fixture from a mains supply (e.g. 120 V AC) requires electronics between the supply and the devices themselves to provide a DC voltage (e.g. 12 V DC) capable of driving several LEDs. A new approach is to develop AC-LEDs, which can operate directly from an AC power supply. This provides several advantages, as …
Technology roadmap shows UV-C LEDs are on the rise - LEDs …
WEBJul 24, 2020 · Roadmap for UV-C LEDs. Indeed, these breakthroughs in UV-C-transparent epitaxial stacks entitle, for the first time, the UV-C LED sector to the technology improvement roadmap that performed so well for blue LEDs and transformed the lighting industry. The best reported GaN-based visible-spectrum LEDs exhibit PCEs above 80%.
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WEBLEDs Magazine. Volume 21, Issue 2. LEDs Magazine covers technology advances, markets, and applications of LED lighting and related component systems for commercial development and deployment by researchers, engineers, product developers, and manufacturing professionals.
Understanding the difference between LED rated life and lumen ...
WEBOct 21, 2011 · The rated life of an LED light source is different from the lumen-maintenance life, and is an essential reliability value that is required by luminaire makers and end users, as JIANZHONG JIAO explains.
Siemens re-enters the lighting business, via the IoT
WEBJun 29, 2018 · With its re-entry into lighting, Siemens will now compete head-to-head with its old subsidiary, Osram, which itself is pursuing IoT opportunities and which has shed its own bulb legacy, having sold the lamp portion of its business to Chinese-owned LEDvance about four years after splitting from Siemens. One challenge lighting vendors face is ...
Ketra launches next-generation lighting system, updating its entire ...
WEBMar 17, 2020 · Industry leader revamps the technology in each light source and unveils its new software platform for residential interiors. AUSTIN, TX (March 17, 2020) – Ketra, the LED lighting manufacturer known for creating the highest quality, most accurate Natural Light, has introduced its all-new lighting system.The product debut is the most significant release from Ketra following its acquisition by ...
Osram opens $440M Malaysian plant amid world's widening …
WEBNov 28, 2017 · Chips ahoy: Osram's new plant in Kulim, Malaysia is believed to be the world's largest LED factory using 6-in. wafers.Osram is also using it for the epitaxy process, which until now it had retained in Germany. (Photo credit: Osram.) The new facility is Osram's second current plant in Malaysia, where it has had production of some sort in the nearby state of Penang since 1978, and has been ...
With Savant’s GE acquisition, the IoT once again drives the lighting ...
WEBJun 1, 2020 · Savant said that GE Lighting will remain in the historic Nela Park building in East Cleveland, a suburb of Cleveland. Its 700+ employees will transfer to Savant once the acquisition is complete, which Savant thinks will happen in midyear. The employees will not be asked to move. GE Lighting’s manufacturing operations include an LED lamp plant ...
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