Lead Performer: Vadient Optics LLC – Eugene, OR
DOE Total Funding: $150,000
Project Term: February 22, 2016 – November 21, 2016
Funding Type: SBIR

PROJECT OBJECTIVE

Vadient Optics proposes to develop and demonstrate a practical commercial manufacturing route for its flexible, low-cost additive manufacturing process used to efficiently fabricate complex and highly efficient light-extraction optics for a variety of SSL products. The proposed approach will allow inkjet-print fabrication of monolithic freeform three-dimensional gradient-index optical films that can be printed directly onto LED or OLED assemblies, allowing lamps and luminaires to be easily and quickly tailored for precise, spectrally specific radiant angular flux distributions to achieve optimal light extraction efficiency for a wide range of lighting conditions. By embedding variable concentrations of high- and low-optical index nanoparticles with polymer host matrices, it is proposed to create stable optical inks that can achieve an index contrast > 0.2.

PROJECT IMPACT

Using these printed films, SSL lamps and luminaires can be easily and quickly tailored for precise, spectrally specific radiant angular flux distributions to achieve optimal light extraction efficiency for a wide range of lighting conditions from directed spot lighting to focused or collimated output.

CONTACTS

DOE Technology Manager: James Brodrick, James.Brodrick@ee.doe.gov
Lead Performer: Sang-Ki Park, Vadient Optics LLC