Method for virtual testing of at least one lens having a predetermined optical feature and associated device

A method for virtual testing of at least one lens having a predetermined optical feature and configured to be used in eyeglasses by an individual, using a headset including at least a screen, an image capture apparatus, and a sensor, the headset being configured to be placed on a head of an individual such that said screen is disposed in front of at least one eye of the individual, the image capture apparatus being configured to capture an image of the environment of the individual, the sensor being configured to measure a value of a first parameter representative of a luminous intensity, and/or a luminance, and/or an illumination, within a predetermined wavelength range, of a light present in said environment of the individual with a wavelength comprised in the predetermined wavelength range the method comprising the following steps:

• a) capturing at least an image of said environment of the individual with said image capture apparatus;
• b) measuring said measured value of said first parameter corresponding to said image captured in step a);
• and
• c) displaying on said screen of the headset a corrected image based on said captured image, the corrected image comprising, when the measured value is above a given threshold, a graphical representation of the light superimposed onto the captured image, the graphical representation comprising elements representing light rays and/or photons,
• wherein the optical feature of the lens comprises at least one of:
• a reflection coefficient of an object-side face of the lens within the predetermined wavelength range, a transmission coefficient of the lens within the predetermined wavelength range, and a reflection coefficient of an eye-side face of the lens within the predetermined wavelength range, and
• the graphical representation of the light depends on the optical feature of the lens to evidence whether, within the predetermined wavelength range, the lens transmits and/or reflects and/or stops the light.