1 Compared to clear to dark photochromic lenses
2 EcoOptics Limited - Prof. Nicholas Roberts, Quantitative study evaluating the visual benefits of the polarisation
properties of lenses, Project 2 WP1 Dec 2020.
3 EcoOptics Limited - Prof. Nicholas Roberts, Quantitative study evaluating the visual benefits of the polarisation properties of lenses, Project 2 WP2 Feb 2021
4 EcoOptics Limited - Prof. Nicholas Roberts, Quantitative study evaluating the visual benefits of the polarisation properties of lenses, Project 2 WP2 Feb 2021
5 Compared to clear to extra dark photochromic lenses. Transitions XTRActive Polarized polycarbonate grey lenses filter 35% of blue-violet light indoors. Blue-violet light is between 400 and 455nm as stated by ISO TR 20772:2018.
6 Based on tests on polycarbonate grey lenses, up to 10% darker than the previous generation @ 23°C and up to 5% darker @ 35°C.
7 Based on tests across materials on grey lenses, achieving transmission below 45% @ 23°C behind a standard windshield. The lens achieves a polarisation efficiency of 30% behind the windshield, which is not classified as being “polarised”.
8 Based on tests across materials on grey lenses @ 23°C, using ISO 12312-1 standard.
9 Blue-violet light is between 400 and 455nm as stated by ISO TR 20772:2018.
10 Based on tests across materials on grey lenses, achieving transmission
below 45% @ 23°C behind a standard windscreen. The lens achieves a polarisation efficiency of 30% behind the windscreen, which is not classified as being “polarised”