Method of determining outdoor characteristics of photochromic optical articles, and system and method for selection of photochromic optical articles

• Main Authors: BALDY, CHRISTOPHER J, GRANGER, BERANGERE, SUMMERS, ROBERT E, BAILLET, GILLES, TANG, CHENG Y
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2021
• Subjects: CONTACT LENSES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; OPTICS; PHYSICS; SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES; TESTING

A method of determining outdoor characteristics of a photochromic optical article includes: determining environmental conditions for an area; positioning the optical article to face a first direction; determining a first incident irradiance on the optical article; determining a first surface temperature and first spectrum of the optical article; rotating the optical article to face a second direction; determining a second surface temperature and Full Characterization of Lens second spectrum of the optical article; determining a second incident irradiance on the optical article; and generating a prediction model of spectral transmission of the optical article. Further using environmental and climate conditions and to select a photochromic article most appropriate for an area.