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1. (WO2018197820) METHOD FOR DETERMINING A LIGHT FILTER APPLIED TO A SPECTACLE LENS, ASSOCIATED DISPLAY DEVICE AND VIRTUAL REALITY HELMET

Pub. No.:    WO/2018/197820    International Application No.:    PCT/FR2018/051067
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Apr 27 01:59:59 CEST 2018
IPC: G02C 7/10
G02B 27/01
Applicants: ESSILOR INTERNATIONAL
Inventors: CHENE, Sylvain
DEBIEUVRE, Amandine
DUBAIL, Marie
MARIE, Sarah
MONTECELO, Susana
SCHERLEN, Anne-Catherine
ARROUY, Frédéric
Title: METHOD FOR DETERMINING A LIGHT FILTER APPLIED TO A SPECTACLE LENS, ASSOCIATED DISPLAY DEVICE AND VIRTUAL REALITY HELMET
Abstract:
The invention concerns a method for determining a light filter for a spectacle lens for improving or maintaining the visual comfort of an individual wearing spectacles, comprising the steps: a) collecting (11) data relating to the needs or uses of the individual; b1) selecting (21) a test filter on the basis of a predefined criterion; b2) selecting (22), as a function of the collected data, a luminous scene comprising an image determined as a function of the needs or uses, and a light source generating a visual discomfort for the individual not equipped with a filter; c) placing (31) of the individual by presenting him with the luminous scene through the test filter; d) evaluating (41) said criterion; e) comparing (51) the result with a predetermined threshold; f) determining (61) the suitable light filter as a function of the result. The invention also concerns a display device and a virtual reality helmet designed for said method.