Abstract: This method for retrieving at least one optical parameter of an ophthalmic lens comprises: obtaining an image of a first and second patterns by using an image capture device located at a first position; from that image, obtaining a first set of data from at least a part of the first pattern that is seen through the lens by the image capture device and obtaining a second set of data from at least a part of the second pattern that is seen directly i.e. outside the lens by the image capture device; retrieving the at least one optical parameter by using the first and second sets of data and taking account of relative positions of the image capture device, the lens and the first and second patterns.

Abstract: A method for determining parameters of an image acquisition module of an electronic device, the electronic device having a display screen and the image acquisition module on the same side of the electronic device. The method includes an initialization step where a first pattern is displayed on the display screen, a positioning step where the electronic device is positioned in front of a mirror, an orientation step where the electronic device is oriented in a particular orientation, an orientation confirmation step where the electronic device is maintained in the particular orientation during a period of time, a reference point determination step where the set of fourth elements of the second pattern are detected and a reference point associated to each fourth element is determined, and an image acquisition module parameter determination step where the image acquisition module parameter is determined.

Abstract: This method for estimating a position of an optical center of an ophthalmic lens mounted on a frame, where an image of the frame is obtained by an image capture device, includes: detecting the lens in a stream of images of the frame obtained by the image capture device; obtaining a plurality of dimensional parameters, either of the frame, or of the lens; determining the estimated position of the optical center based on the detected lens and either the plurality of frame dimensional parameters, or the plurality of lens dimensional parameters.

Abstract: Disclosed is a binocular optoelectronic device wearable by a user for measuring a light sensitivity threshold of the user, including: a diffuser configured to face eyes of the user; at least one light source for emitting light toward the diffuser. The diffuser includes predetermined parameters allowing to provide a quasi-homogeneous light diffusion to at least one eye of the user from light emitted by the at least one light source.

Abstract: This method for retrieving at least one optical parameter of an ophthalmic lens comprises: obtaining an image of a first and second patterns by using an image capture device located at a first position; from that image, obtaining a first set of data from at least a part of the first pattern that is seen through the lens by the image capture device and obtaining a second set of data from at least a part of the second pattern that is seen directly i.e. outside the lens by the image capture device; retrieving the at least one optical parameter by using the first and second sets of data and taking account of relative positions of the image capture device, the lens and the first and second patterns.

Abstract: Disclosed is a binocular optoelectronic device wearable by a user for measuring a light sensitivity threshold of the user, including: a diffuser configured to face eyes of the user; at least one light source for emitting light toward the diffuser. The diffuser includes predetermined parameters allowing to provide a quasi-homogeneous light diffusion to at least one eye of the user from light emitted by the at least one light source.