Novel high efficiency illuminant A LED using phosphor-conversion technology. An illuminant A source is commonly used in spectroscopy and other applications as a standard light source intended to represent the relative spectral power distribution of a Planckian radiator at a temperature of approximately 2856 Kelvin. Traditional sources are based on tungsten-filament glass light bulbs, which have low lumen efficiency (~14 lm/W), short life, and generate a lot of infrared heat.
We can offer far more efficient (>100 lm/W) and high power phosphor-converted LED alternatives that closely match the tungsten-halogen Vis-NIR part of the spectrum, as shown below. LED technology offers longer life and more stable high efficiency alternative to conventional bulbs used in UV/Vis/NIR spectroscopy.
For portable low-power devices, it is possible to achieve more than 10X higher luminous efficacy compared to a tungsten bulb at 100 lumen of brightness. Considering also the significantly better lifetime and source directionality, the illuminant A LED is a far more superior source for a wide range of instrumentation.
Illuminant A LED Photometrics
These illuminant A LED sources are available in high power COB (chip-on-board) packages from 10 watts up to 100 watts. They can be used with other phosphor-based technologies we offer to build a wide range of UV/Vis/NIR and/or SWIR light sources for a variety of fiber optic and spectroscopy applications. Other types of standard illuminants (including daylight) are also possible with phosphor technology. Contact us for more details on what we can offer in terms of customized LED sources or phosphor mixtures that enable you to build your own LEDs.
10W COB Illuminant A LED Specifications:
– Voltage: 31-38 V
– Current: 300 mA (Max)
– Input Power: 10W (Max)
– Optical Lumens: 700 lm (Max)
– Spectral Range 380-780nm
– Correlated Color Temperature (CCT): 2858K
– Color Rendering Index (CRI): 97-98
– Color Quality Scale (CQS): 98
–Television Light Consistency Index (TLCI): 99
Illuminant A LED. 10W COB Type (Other types and sizes are also available)