Showing posts with label LED-Lighting. Show all posts
Showing posts with label LED-Lighting. Show all posts

Saturday, April 9, 2016

XLamp XP-G Power LED from Cree

Optimized for high lumen directional lighting applications, the XLamp XP-G LED set a new standard for light output and efficacy in a small form factor LED.

345 lumens at 1 A. High light output and efficacy in single-die LED. Typical efficacy up to 132 lm/W

XLamp XP-G Power LED from Cree

XLamp XP-G Power LED from Cree

Some Characteristics
  • Viewing angle (FWHM) .... 125 degrees
  • Temperature coefficient of voltage ... -2.1 mV/°C
  • DC forward current ...1000 mA
  • Reverse voltage .. 5V
  • Forward voltage (@ 350 mA) ... 3.0V Typical
  • Forward voltage (@ 1000 mA) ... 3.3V Typical
LED Chips and Lighting from Cree

"Cree LEDs combine highly efficient InGaN materials with proprietary substrates to deliver superior price/performance for high-intensity LEDs...."

Product line include lighting-class LEDs, LED lighting Solutions. They also have semiconductors for wireless and power applications.

Thursday, April 16, 2015

LED Lighting Devices from Nichia

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.

Light Emitting Diode - InGan LED NICHIA

Light Emitting Diode - InGan LED NICHIA

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.

High Power Point Source White Led NVSx219AWe rolled out a better idea

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.

Wednesday, April 8, 2015

Z-Power LED - Seoul Semiconductor

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 - Seoul Semiconductor

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.

Z-Power LED - Seoul Semiconductor

Z-POWER LED Series Electrical Drive Management - PDF

" 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

Saturday, November 14, 2009

LUW CN5M - OSRAM Opto Semiconductors

LUW CN5M - OSRAM Opto Semiconductors

LUW CN5M - OSRAM Opto Semiconductors
LED on SMD ceramic package with silicon resin with lens, high efficient lighsource at small dimensions. Color temperature (typ.): 6500 K, ThinGaN Technology.
Some Specifications
  • Color of Emission - ultrawhite
  • Luminous Flux 18.000 .. 35.500 (mlm)
  • Luminous Intensity typ. 34000 (mcd)
  • Forward voltage typ. 3.6 V
  • Optical efficiency 73 lm/W
  • Thermal resistance 30 K/W
Specs at IF = 140 mA

From OSRAM Opto Semiconductors

Friday, November 13, 2009

LUXEON Rebel White - Philips Lumileds

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.

LUXEON Rebel White - Philips Lumileds

LUXEON Rebel White - Philips Lumileds

Electrical Characteristics at 350 mA for LUXEON Rebel - Thermal Pad Temperature = 25ÂșC
Part No - LXM3-PW71
  • Nominal CCT - 3000K
  • Typical CRI - 85
  • Typical Luminous Flux - 77 lm
  • Forward Voltage Vf - Typ - 3.00 V
  • Color Temperature - CCT - 3045K
  • Typical Viewing Angle - 120 Degrees
LED Technology Glossary

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).

From - Philips Lumileds Lighting Company