Patent ID: 7186996
Filing Date: 2007-03-06
Classification: G03B

Abstract:
1. A system for reading out stimulable phosphor screens, plates or panels, after exposing said screens to X-rays, the phosphors of which are coated on a substrate in a phosphor layer, said system comprising at least one source of stimulating radiation, an array of transducer elements arranged for detecting light emitted upon stimulation and for converting said light into a signal representation of said image, and filtering means for preventing light emitted by said source of stimulation light from being detected by said transducer elements, characterized in that a ratio of transmission at the stimulating emission wavelength of said source of stimulation light and transmission of stimulated light in the wavelength range between 350 nm and 500 nm is less than 10 −6 , wherein said ratio is defined by the formula (1): wherein λ st is the stimulation wavelength and wherein 350 nm <λ x =500 nm wherein said filtering means comprises at least one organo transition metal dye, wherein said organo transition metal dye is present as a viscous deep blue oil.