Abstract: A computed factor allows quantifying the efficiency of a light filter to stimulate a non-visual physiological effect which is responsive to light entering into a subject's eye. The efficiency factor is based on a spectral light transmittance of the filter over the wavelength visible range, on a spectral sensitivity profile of the non-visual physiological effect, and on a spectral distribution of the light which enters into the subject's eye without using the filter. Such efficiency factor is useful in particular for an ophthalmic element designed for stimulating a non-visual physiological effect which is based on melanopsin light-absorption.

Abstract: The invention relates to a method for determining a filter for an ophthalmic lens intended for being placed in front of the eye wearer, said filter being capable of improving or maintaining the visual comfort and/or the visual performance of said wearer. According to the invention, this method includes: a) a step of determining a quantity representing a dynamic sensitivity of the eye or the two eyes of the wearer to a variation in a luminous flux; and b) a step of determining at least one optical feature of said filter as a function of the determined representative quantity.

Abstract: The invention relates to the field of management systems and methods of an active device and more particularly, with said active device being an active ophthalmic lens, to a management system and method which allow a total or sufficient protection by taking into account the luminous environment of the wearer while avoiding some effects relative to permanent light filtering. According to a particular embodiment of the invention, there is also provided a monitoring of the wearer's health via active, regulated and continuous control of the active device, this control being performed for instance by a health professional via a remote monitoring system.

Abstract: An optical system having a spectral transmission profile having an average transmittance Ta between 380 nm and 780 nm and an average red light transmittance Tr between a first limit L1 and a second limit L2, with Tr<2*Ta/3 and L1=600 nm and L2=780 nm, and the optical system being configured to allow selectively retinal exposure of an eye to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 530 nm.

Abstract: The invention relates to the field of management of an active lens and more particularly to a management system comprising an active lens (1), a first sensor (2) arranged to measure data relating to an incident light on the active lens, a control unit (4) designed for controlling the active lens according to data measured by the first sensor, wherein the management system further comprises a second sensor (3) arranged to measure data relating to a light transmitted from the incident light through the active lens, the control unit being further designed to adjust, according to said data measured by the second sensor, the control already performed according to said data measured by the first sensor. Thus the management system allows taking into account data relating to the light passing through the active lens as a feedback in order to finely control the active lens.

Abstract: The invention relates to a method for determining a value quantifying the effect of an optical filter on a parameter linked to an eye, this optical filter blocking at least partially the transmission of light over a predetermined wavelength range, comprising the following steps: a) at least one spectral feature of the optical filter related to the transmittance of this optical filter at at least one wavelength in said predetermined wavelength range is provided, b) the value quantifying the effect of the optical filter on said parameter is calculated as a function of said at least one spectral feature of the optical filter provided in step a).

Abstract: The invention relates to methods and systems for augmented reality. The invention more particularly provides head-mounted devices for the display and visualization of computer-generated information content by a wearer. The invention further provides related methods and uses.

Abstract: Method of controlling an active filtering device comprising an active filter and a filter controller arranged to control the active filter, the method comprising: a wearer location providing step, during which a location of a wearer is provided, a luminous cartography providing step, during which a luminous cartography relating to the light sources in the environment of the wearer is provided, the luminous cartography depending at least on the location of the wearer, a light exposure profile determining step, during which at least one part of the light exposure profile of the wearer is determined based at least on the luminous cartography and on the wearer location, and an active filter controlling step, during which the active filter is controlled by the filter controller according to the determined light exposure profile of the wearer.

Abstract: A user migraine analysis component comprises a memory configured to store computer executable instructions, and a processor for executing the computer executable instructions. The computer executable instructions comprise instructions for receiving at least a visual behavior parameter indicative of the real time visual behavior of the user, and determining the migraine risk of the user based on the analysis of the at least one visual behavior parameter.

Abstract: Method of determining configuration of interferential filtering elements for an optical device having an optical substrate for a user, includes: providing a first set of parameters representative of at least one main line of sight of the user; determining a first selected range of angles of incidence based on the first parameters; providing a second set of parameters characterizing, for the user, a range of wavelengths to be at least partially inhibited; determining a first selected range of wavelengths of incident light to be at least partially inhibited, based on the second parameters; and configuring a first selective interferential filtering element and a first zone of a surface of the optical substrate based on the first selected range of angles of incidence and wavelengths such that the first selective interferential filtering elements inhibit, at a first rate of rejection, transmission of the first selected range of wavelengths of incident light.

Abstract: A method, implemented by a computer device, for determining a risk score of an eye disease for a user, the method including a first eye-mediated physiological parameter providing step, during which a first eye-mediated physiological parameter indicative of a first eye-mediated perception or behaviour of the user is provided, a second eye-mediated physiological parameter providing step, during which a second eye-mediated physiological parameter indicative of a second eye-mediated perception or behaviour of the user is provided, and a risk score determining step, during which the risk score of eye disease is determined based on the first eye-mediated physiological parameter and on the second eye-mediated physiological parameter.

Abstract: An active optical filter adapted for a spectacle lens, the active optical filter configured to filter light radiations over at least one predetermined range of wavelengths, wherein the full width at half maximum of the filtering function of the optical filter is smaller than or equal to 100 nm.

Abstract: A head mounted display device comprising: a light emitting source, an optical waveguide adapted to collect light emitted from the light emitting source and to guide the collected light to the eye of a wearer when the head mounted display device is being worn by the wearer, a controller device adapted to control the emitted spectrum and/or radiance and/or light level emitted by the light emitting source.

Abstract: Method of controlling an active filtering device comprising an active filter and a filter controller arranged to control the active filter, the method comprising: a wearer location providing step, during which a location of a wearer is provided, a luminous cartography providing step, during which a luminous cartography relating to the light sources in the environment of the wearer is provided, the luminous cartography depending at least on the location of the wearer, a light exposure profile determining step, during which at least one part of the light exposure profile of the wearer is determined based at least on the luminous cartography and on the wearer location, and an active filter controlling step, during which the active filter is controlled by the filter controller according to the determined light exposure profile of the wearer.

Abstract: The invention relates to the field of management of an active lens and more particularly to a management system comprising an active lens (1), a first sensor (2) arranged to measure data relating to an incident light on the active lens, a control unit (4) designed for controlling the active lens according to data measured by the first sensor, wherein the management system further comprises a second sensor (3) arranged to measure data relating to a light transmitted from the incident light through the active lens, the control unit being further designed to adjust, according to said data measured by the second sensor, the control already performed according to said data measured by the first sensor. Thus the management system allows taking into account data relating to the light passing through the active lens as a feedback in order to finely control the active lens.

Abstract: The invention relates to the field of management systems and methods of an active device and more particularly, with said active device being an active ophthalmic lens, to a management system and method which allow a total or sufficient protection by taking into account the luminous environment of the wearer while avoiding some effects relative to permanent light filtering. According to a particular embodiment of the invention, there is also provided a monitoring of the wearer's health via active, regulated and continuous control of the active device, this control being performed for instance by a health professional via a remote monitoring system.

Abstract: An optical device including an optical substrate providing with an optical filter configured to inhibit transmission of harmful UV and/or blue light wherein the optical device is further configured to allow retinal exposure of an eye to at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 560 nm, preferably of 480 nm to 520 nm.

Abstract: The invention relates to methods and systems for augmented reality. The invention more particularly provides head-mounted devices for the display and visualization of computer-generated information content by a wearer. The invention further provides related methods and uses.

Abstract: The disclosed embodiments include user fatigue level analysis components, real-time visual behavior measuring devices, and methods for determining the fatigue level of a user. In one embodiment, a user fatigue level analysis component includes a memory configured to store computer executable instructions and a processor for executing the computer executable instructions. The computer executable instructions comprise instructions for receiving at least a visual behavior parameter indicative of the real time visual behavior of the user, for providing at least one sleep quality history parameter indicative of the sleep quality history of the user, and for determining the fatigue level of the user based on the analysis of the combination of the at least one visual behavior parameter and the at least one sleep quality history parameter.

Abstract: The invention provides a head-mounted display (1) comprising: —an optical module (2) containing an image source (21); —an imager (3) for guiding light emitted by the image source (21) to a wearer's eye (E) in operation; and —a light filter for filtering a portion of light emitted by the image source (21). The invention also provides an ophthalmic lens (4) intended to be mounted onto a head-mounted display (1) comprising an image source (21), wherein said ophthalmic lens (4) comprises a light filter intended to filter light emitted by the image source (21) of the head-mounted display (1) in operation.