Inspection of transparent objects, particularly plastic or glass bottles in which a lens array is used that ensures a bright uniform inspection beam is generated for optimum inspection

摘要

Optical inspection device comprises a light source (1), mirrors (2,4,7) and light diffracting elements for producing a light beam and a lens arrangement (3a,3b) for producing a homogenous non-diffuse broad inspection light beam. The lens arrangement comprises an arrangement of cylindrical lenses.