Beam angle LEDs focus light precisely for high-intensity applications

November 12, 2019 //By Julien Happich
Beam angle LEDs
OMC has introduced two new surface-mount LEDs, an ultra-narrow 15 degree beam LED and a 60 degree beam LED, both offered in a range of package styles in all popular LED wavelengths, including infra-red.

The two new devices join the SMD emitter series launched by OMC in late 2018, which includes a 30 degree output beam device that has proved very popular. Narrow beam angle LEDS are often challenging for designers to source with the move to surface-mount components. This wasn’t so much of a problem with traditional through-hole (non-surface-mount) LEDs, which are commonly produced with narrow output angles as the LED body is generally moulded around the leadframe using an optical epoxy or silicone. The LED body itself then acts as the lens, focusing the light into beam angles as narrow as 5 degrees. However, with the move to surface-mount components, some design versatility was lost. With SMT LEDs, the LED body is generally injection moulded from non-optical material which is pre-manufactured before the LED die is mounted, and therefore doesn’t form a lens in the same way. As a result, the majority of SMD packages do not incorporate any lensing, emitting light in a wide beam angle which generally exceeds 100°. OMC, however, uses a proprietary post die-mount encapsulation process and is able to cost-effectively integrate narrow angle lensing into a range of surface-mount emitters. The LEDs are especially targeted at high-intensity applications where the beam needs to be seen from a distance, such as signalling, indication, sensing and communication.


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