Patent ID: 6392239
Filing Date: 2002-05-21
Classification: A61B,G01J,G02B

Abstract:
An optical array converting UV, visible and IR radiation, especially contained in sunlight, with a spectral characteristics following the Diffey Standard, comprising:a system of absorptive filters, made of M1 material, to modify transmission characteristics in the UV range and/or to block visible and IR radiation, this M1 material is characterized by internal transmission for a given wavelength divided by its internal transmission for 310 nm light within the following range: between 0 and 0.3 for &lgr;=290 nm, between 0.7 and 0.8 for &lgr;=300 nm, between 1 and 1.3 for &lgr;=320 nm, between 1 and 1.4 for &lgr;=330 nm, between 1 and 1.3 for &lgr;=340 nm, between 1 and 1.12 for &lgr;=350 nm, between 0.6 and 0.8 for &lgr;=360 nm, between 0.14 and 0.3 for &lgr;=370 nm, between 10E-3 and 0.0015 for &lgr;=380 nm, between 10E-10 and 10E-6 for &lgr;=390 nm; a system of interference filters to modify transmission characteristics in the UV range and/or to block visible and IR radiation; and a scatterer at the beginning of the optical path to achieve non-directional spectral transmission characteristics of the array and to improve the spectral transmission characteristics of the array.