UV curing systems using UV LED arrays without an optical element frequently allow light rays to miss the curing surface. This wasted energy leads to increased operating costs. Conversely, an optimized system will direct the bulk of UV rays to the intended surface.
Kopp found that by introducing an optimized UV glass optic, the efficiency of a UV curing system can be improved. In our case study “The Effects of UV Glass Optics on UV LED Arrays,” we performed an optical simulation on both the commonly used fused quartz rod optic and a UV transmitting borosilicate Total Internal Reflection (TIR) optic.
The study demonstrates that compared to a UV LED array without an optic, both the rod and TIR optics increase peak irradiance and refract more energy toward the curing target surface. While both optic types have their own unique advantages and disadvantages, the results are clear in demonstrating that UV glass TIR optics are more efficient at capturing stray rays of light and increasing peak irradiance. By adding this optical element, you can control the collimation of the light beam and the irradiance pattern at the measurement surface, which results in a higher-performance UV LED curing system.
Kopp Glass Engineer, Justine Galbraith, PhD, recently presented this investigation into LED array efficiency to industry professionals at the RadTech UV+EB Technology Conference in Rosemont, Illinois. The technical paper and companion presentation are now available for public download. We hope our research can assist in the successful optimization of UV LED curing systems.
15.02.2019, KOPP Glass
Les informations publiées sur notre portail sont soumises au droit d´auteur et appartiennent à la société en question resp. à la source des nouvelles. Tous les droits sont réservés expressément. N´importe quel utilisateur qui accède à un tel matériel peut faire ainsi seulement pour sa propre utilisation personnelle, et l´usage d´un tel matériel est au risque unique de l´utilisateur. La redistribution ou toute autre exploitation commerciale d´un tel matériel de nouvelles est expressément interdite. Là où un tel matériel de nouvelles est fourni par un tiers, chaque utilisateur accepte d´observer et être lié par les limites spécifiques de l´utilisation s´appliquant à un tel matériel de nouvelles. Glass Global ne représente ou n´approuve pas l´exactitude ou la fiabilité d´aucune des informations citées dans les nouvelles ou pages externes auxquelles on se réfère ici.
Should the content or the design of these sites violate third parties rights or legal prescriptions, we kindly ask you to send us a respective message without invoice or cost. We guarantee that passages where the claim is considered as justified will be removed immediately, without any necessity to involve any lawyer into this issue. We will reject any claim caused by submission of a honorary note in this regard without any prior contact and confirmation of the issueby us and we reserve the right ssue counter claim ourselves because of violation of aforesaid conditions.