UV Laser Based Longitudinal Illuminated Diffuser (LID) Beam Shaping System

摘要

A novel laser beam shaping system was designed to demonstrate the potential of using high power UV laser and solid state UV diode sources for large scale disinfection of liquids used in the production of food products, such as juices, beer, milk and other beverage types. The design incorporates a patented assembly of optical components including a diffractive beam splitting/shaping element and a faceted pyramidal or conically shaped Lambertian diffuser made from compression molded PTFE compounds. The compact tubular structure termed Longitudinal Illuminated Diffuser (LID) provides a unique UV disinfection source that can be placed within a centrifugal reactor or a pipe based reactor chamber. This paper will review the overall design principle, key component design parameters, preliminary analytic and bench operational testing results.