Osram Opto Semiconductors has announced the Soleriq S 13 family of chip-on-board (COB) LEDs that delivers 1500lm from a light-emitting surface (LES) that measures 13.5mm in diameter. Osram intends the LED primarily for use in solid-state lighting (SSL) retrofit lamps and luminaires designed to replace high-wattage halogen spotlights.
The new family has a range of CCTs from 2700-6500K with a 3000K version delivering efficacy of 100 lm/W. The available warm-white CCT and minimum CRI make the LEDs suitable for target markets including retail, restaurant, and luxury residential areas, the company said.
The Soleriq S 13 is indicative of a growing trend toward COB LEDs with smaller LES diameter and smaller packages that enable use in lamps and compact luminaires. Osram noted that the COB LED simplifies product design since the developer has to deal with a single LED component. The thermal, optical, and electrical elements of an SSL product are simplified with COBs although the components do not offer beam control as tight as what can be achieved with individual emitters. The COBs typically offer tighter color binning because the LED manufacturer can mix individual emitters from multiple color bins in the package, the company added.
Osram said the design organizes the individual emitters in a circle that simplifies the optical coupling to lenses or reflectors with lower optical losses. The design also allows SSL manufacturers to affix the LED into a product using glue, screws, or a solderless connector, so products don't require surface-mount manufacturing. Mechanically and optically, the LEDs are designed for compatibility with Zhaga specifications.
