LED Terms

McAdam ellipse - This is a region on a chromaticity diagram that will contain all the colors that the human eye is not able to distinguish between.

Black Body line - – (known as Planck’s Law) Is the visual representation on a color diagram that designates the color temperature of a light source expressed as absolute temperature (kelvin)

Color Rendering Index - This is a percentage of a LED light based from a natural light source.

colortemp

Binning - Sorting LEDs so they all have a similar light output.

Correlated Color Temperature (CCT) - This is the appearance of a LED defined in degree Kelvin.

Kelvin - This is a measurement to describe the color temperature of a light source.

Lumens/Watt - It is the measurement on how well a light source produces light.

lumens_2

Below are resources for furthering your LED binning knowledge:

Decoding LED Bin Labels
https://www.digikey.com/en/articles/decoding-led-bin-labels

Osram-opto LED Binning Overview
https://www.digikey.com/en/pdf/o/osram-opto-semiconductors/led-binning-overview

Hot Binning
https://www.digikey.com/en/articles/hot-binning-improves-led-consistency-at-higher-operating-temperatures

Thermal Effects on White LED Chromaticity
https://www.digikey.com/en/articles/thermal-effects-on-white-led-chromaticity

LED Color Mixing Basics and Background
https://www.digikey.com/en/articles/led-color-mixing-basics-and-background

Color Mixing Offers Inexpensive Route to Consistent LED Lighting
https://www.digikey.hu/en/articles/color-mixing-offers-inexpensive-route-to-consistent-led-lighting

Understanding the Color White
https://www.digikey.hu/en/articles/led-specs—understanding-the-color-white

Color Characteristics of White LEDs
https://www.digikey.hu/en/articles/defining-the-color-characteristics-of-white-leds

Decoding LED Bin Labels
https://www.digikey.hu/en/articles/decoding-led-bin-labels

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