Japanese chemical engineering and manufacturing company, headquartered in Tokushima, Japan. Specializes in the manufacturing and distribution of phosphors, including light-emitting diodes (LEDs), battery materials, and calcium chloride.
Nichia 219 white LED offers typical 140 lumen output at 1 W input power with 5,000 K color temperature. Using a uniformly phosphor coated chip, Nichia 219 has the industry leading source brightness and tightest optical footprint.
The spatial color uniformity is also optimized with Nichia’s leading phosphor technology. At 350 mA drive current, the typical forward voltage is only 3.0 V. Additionally, this package is capable of drive currents up to 1.5 A.
GE Lumination offers a wide range of world-class, environmentally responsible LED solutions and systems for signage, architectural, transportation, display lighting and general illumination applications. Lumination is a GE Consumer & Industrial business in collaboration with Nichia.
Solid-state lighting solutions can be built using Vio LED. Energy savings, long life and robustness. “Vio LEDs combine 405 nm violet chips with proprietary phosphors to create a natural white light.” Warm white light, similar to Edison Filament Lamp.
Vio White LED – Lumination GE – 2009
GE Lighting’s Vio LEDs were the first of their kind to utilise remote phosphor technology. Combining violet chips with phosphors applied to the hemispherical lens of the LED, radiation is converted directly to white light without colour mixing. Vio LEDs are available in 3000K, 3500K and 4100K colour temperatures and can be used in many standard fixtures designed for general illumination applications.
Vio LEDs provide high efficiency at warmer colour temperatures, as well as flexible colour temperature and colour rendering options making them a viable, energy efficient alternative to traditional light sources.
LUXEON Rebel LEDs are designed for a wide range of lighting applications and available in specifi Correlated Color Temperatures (CCT) and Color Rendering Index (CRI) combinations, flux and CCT combinations and even specified efficacy.
Correlated Color Temperature (CCT) – The phrase use to describe the temperature at which a Planckian Black Body Radiator and an illumination source’s appear to match, usually specified in Kelvin (K).
CRI or Color Rendering Index – The calculated rendered color of an object. The higher the CRI (based upon a 0-100 scale), the more natural the colors appear. Natural outdoor light has a CRI of 100. Common lighting sources have a large range of CRI.
Flux – The sum of all the lumens (lm) emitted by a source (see lumen).
Designed with Seoul Semiconductor’s own phosphor and packaging technology. The P4 emits 240 lm at 1A. Luminous efficacy of 100 lm/W @ 350 mA at the maximum, with only a single die. Z-Power series is designed for high current operation and high flux output applications.
Z-Power LED’s thermal management perform exceeds other power LED solutions. It incorporates state of the art SMD design and Thermal emission material. Z Power LED is ideal light sources for general illumination applications, custom designed solutions, automotive large LCD backlights.
” Why constant current? – LED is the component that allows current through itself according to input voltage. In other words, it is close to voltage control component. General LED, especially Z-POWER LED must be driven by constant current. There are two main reasons. Firstly, LED is an optical device. How much luminous flux we can get from LED is very important. Generally luminous flux is closely related to driving current. It is easy to recognize and control optical characteristics by current constant. Secondly, LED is more sensitive to voltage than current.”
Seoul Semiconductor Co., Ltd is a Korean company manufacturing LED devices. The company is producing LED packages in two plants in Ansan, Korea.
Seoul Semiconductor Co. Ltd.
1B-25, 727, Wonsi-dong, Danwon-gu, Ansan-city, Gyeonggi-do, Korea 425-851