This Product Selection Guide contains information to help select products in the Remote Phosphor Light Source category on DigiKey.com
Products in the remote phosphor light source category are used to optically convert a portion of the energy from a narrow band light source in the blue spectral region to other wavelengths in the visible spectrum, for the purpose of creating a light source that is perceived as white. A similar process is used for the production of LEDs that are perceived to emit white light directly, but by placing the phosphor materials at a distance from the light source the degradation of the phosphor material due to heat can be reduced, allowing greater optical stability over the life of a product.
SelectionCharacteristics
Lens Style: Characterizes the shape of a device’s optical emitting surface.
Lens Size: Defines the overall dimension of the lens.
CRI (Color Rendering Index): Characterizes the influence of a light source on the perceived color of illuminated objects, relative to that produced by a standardized illuminant of the same correlated color temperature (CCT). Values closer to 100 indicate color rendition that more closely matches the standard.
CCT (K): Characterizes the perceived color of a nominally “white” light source, in terms of comparison to an ideal blackbody radiator. Devices with lower values appear more yellow, and those with higher values appear more blue.
Conversion Efficacy (lm/Wrad)(typ): Quantifies light output in human perceptual terms (lumens) per unit of energy input from an excitation source (radiated watts). Actual values vary with the characteristics of the excitation source used.
Viewing Angle: Indicates the angle of light emitted from the part.
ProductExamples
| MFR PART # | CL-827-R45-XT |
|---|---|
| DIGIKEY PART # | 1079-1110-ND |
| MANUFACTURER | Intematix Corporation |
| DESCRIPTION | CHROMALIT XT LIGHT SOURCE RND |
| DATASHEET | Click Here |
| MFR PART # | CL-840-L225-PC |
|---|---|
| DIGIKEY PART # | 1079-1024-ND |
| MANUFACTURER | Intematix Corporation |
| DESCRIPTION | CHROMALIT 80CRI 305X22.5MM |
| DATASHEET | Click Here |