Abstract:
The invention concerns a device and a method for determining a change in the visual comfort of a user, the device comprising: − at least one light source for stimulating at least one eye of the user; − a sensing unit facing at least one eye area (44) of the user when the device is worn by the user, the sensing unit being configured to remotely acquire at least one signal (46) representative of at least one characteristic of said at least one eye area; and − a controller configured to determine a change in the visual comfort of the user depending on a variation of said at least one signal acquired by the sensing unit.
Abstract:
A photography and thermography combining method of obtaining, for the chosen spectacle frame model of a spectacle wearer, at least one fitting parameter to fit an ophthalmic lens into the spectacle frame model, the method comprising the following steps: taking a photograph of the wearer's face with spectacles having the chosen spectacle frame model, taking a thermogram (21) of the wearer's face with said spectacles, identifying the spectacles' contour (23) in the thermogram (21), overlaying the identified contour (23) or a boxing shape derived from the identified contour onto the photograph, thus obtaining a composite image, obtaining the at least one fitting parameter from the composite image
Abstract:
The invention relates to a device (10) for assessing discomfort glare and/or disability glare of a subject, comprising: - at least one neuro-sensor (11) for detecting a neural signal linked to the sensitivity of the eyes of the subject, - a control unit (15) adapted to a) record the neural signal of the subject detected by the neuro-sensor while at least one eye of the subject receives a given light condition, b) provide a threshold neural signal that is characteristic of a shift for the subject from no-glare state to discomfort glare and/or disability glare, c) assess whether the neural signal recorded in step a) correlates with a discomfort glare and/or disability glare of the subject by comparing said neural signal recorded in step a) to said threshold neural signal provided in step b). The invention also relates to an eyeglass comprising said device, to a method for assessing discomfort glare and/or disability glare of a subject, and to a virtual reality headset comprising the device.
Abstract:
The invention provides a binocular optoelectronic device (10) wearable by a user for measuring a light sensitivity threshold of the user, comprising: - a diffuser (12) configured to face eyes of the user, - at least one light source (14) for emitting light toward said diffuser (12), wherein the diffuser (12) comprises predetermined parameters allowing to provide a quasi-homogeneous light diffusion to at least one eye of the user from light emitted by said at least one light source (14).
Abstract:
A method of controlling a programmable lens device comprising a programmable lens and an optical function controller, the programmable lens having an optical function and extending between at least one eye of the wearer and the real world scene when the device is used by the wearer, and the optical function controller being arranged to control the optical function of the programmable lens, the method comprising: an optical function data receiving step during which optical function data relating to the optical function of the programmable lens is received by the optical function controller, an optical function modifying step during which the optical function of the programmable electronic lens device is modified by the optical function controller based on the optical function data.
Abstract:
The invention relates to an optometry device for binocular testing of the eyes of a subject, comprising: - a binocular refraction test unit with a first optical refraction element adapted to provide different vision correction powers along a first optical axis and a second optical refraction element adapted to provide different vision correction powers along a second optical axis; - a display system for providing a first and a second test images, the first test image being conveyed to the first optical refraction element along a first optical pathway and the second test image being conveyed to the second optical refraction element along a second optical pathway; said first and second test image being provided with details smaller than 1 arc minute, over a field of view of at least 8° in horizontal directions, wherein said first and second optical pathways have a length comprised between 25 and 100 centimeters, allowing testing the eyes of the subject in near and/or intermediary vision.
Abstract:
L'invention concerne un procédé de commande d'un système ophtalmique (1) comprenant au moins un élément optique (2), au moins un capteur de mesure (5), au moins une interface de communication (8) avec un dispositif électronique externe communiquant (9), au moins un processeur (4) relié à l'élément optique (2) et apte à commander une variation d'une fonctionnalité liée à l'élément optique (2), le procédé comprenant les étapes consistant à acquérir au moins une mesure par le capteur (5) du système ophtalmique (1), sélectionner au moins une information obtenue par un dispositif électronique externe communiquant (9), déterminer une instruction à partir de la mesure acquise par le capteur (5) et de l'information obtenue par le dispositif électronique externe communiquant (9), et exécuter l'instruction par le processeur (4) pour commander la variation de la fonctionnalité liée à l'élément optique (2).
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 present invention provides methods and systems (terminals, devices) for the generation, the retrieval and the display of computer-generated holographic images through a head-mounted display. The holographic images may be used as virtual retrievable tags for display in augmented reality.
Abstract:
Un procédé de dépôt du type impression par jet d'encre comprend une compensation de déviations (δ|1, δ|2, δ|3,... ) de buses (1, 2, 3,...) d'éjection qui sont portées par une tête d'impression (10). Pour cela, les déviations sont mesurées préalablement au dépôt puis, lors du dépôt, chaque buse est activée lorsqu'elle présente un décalage par rapport au point d'un support où la substance est à déposer, qui est sensiblement opposé à la déviation de cette buse. Des dépôts qui sont ainsi effectués sont dépourvus de motifs de Moiré involontaires.