Lumileds has introduced two new series of LUXEON infrared (IR) LED emitters operating at 840nm and 950nm wavelengths which offer radiant-power and radiant-intensity specifications suitable for a wide variety of applications.
The LUXEON IR Compact line of LEDs has a small and well-defined light-source geometry which allows their light to be easily coupled into secondary optics for tight beam control. Suitable for small and light designs, the Compact line LEDs provide a radiant flux of up to 1,150mW at a drive current of 1A from a thermally-efficient package that has a board footprint of just 1.9mm x 1.4mm.
Supplied with no primary lens and a beam angle of 150°, the LUXEON IR Compact LED’s beam can be tightly focussed by secondary optics to provide high power density and a narrow beam.
At 2.8°C/W, its thermal resistance from junction to solder pad is several times better than that of the best competing devices. It also offers radiant power density as much as 95% higher than that of competing LEDs.
Products in the LUXEON IR Domed line of LEDs are supplied with one of three primary lens designs, providing a choice of optical radiation patterns: beam angle options are 60°, 90° and 150°. The domed LEDs are ideal for applications which require high uniformity, high punch or long range.
The LUXEON IR Domed line LEDs have a three-pad 3.7mm x 3.7mm footprint in an industry-standard outline, giving designers a drop-in replacement for inferior IR LEDs. They provide up to 1,400mW of radiant power at a drive current of 1A.
850NM IR LIGHT
- Ideal for use indoors in products such as remote controls, and outdoors at night, for instance in CCTV cameras. 850nm LEDs offer long range, but are susceptible to interference from sunlight.
940NM IR LIGHT
- Suited to military and security applications which require stealth at night. 940nm LEDs are also suitable for use outdoors in daylight. Range is shorter than that of 840nm LEDs, but 950nm LEDs are less susceptible to interference from sunlight.