Abstract:
The invention relates to a device for measuring the objective ocular refraction of a patient for a plurality of visual ranges, which includes a variable proximity optical sight system capable of selectively generating a first target and a second target and an image-capturing device having an optical measurement axis intended for being aligned with a line of sight of the patient, the image-capturing device being capable of capturing a first ocular refraction image when the first target is activated and a second ocular refraction image when the second target is activated. According to the invention, the image-capturing device and the optical sight system are arranged such that the optical measurement axis and the optical sight axis are arranged such that the optical measurement axis and the optical sight axis are contained in a single plane and the optical measurement axis is tilted at an angle alpha between +5 degrees and +85 degrees relative to the horizontal.
Abstract:
The invention concerns a device for applying to one side of a lens a coating film (63) that has been pre-deposited on the side of the lens in question, said device comprising a seat (40) capable of receiving the lens, a membrane (62) comprising a peripheral retaining part (62A) and an inflatable part (62B), and means (61) for inflating the membrane in the direction of the lens seat. According to the invention, the inflating means comprise a first plate (66) and a second plate (65) between which the membrane is placed, the first plate having a recessed pressurization chamber (80) connected to a source of compressed gas (93) and the second plate having a protruding opening (71), both plates being mounted so as to be movable relative to each other between an open configuration and a closed configuration.
Abstract:
The method comprises at least one taking of a digital image of th face of the wearer by means of a portable image capture device (1) and a processing of said captured image to determine a geometrical/physiognomical parameter. The operator manually positions the image capture device prior to taking the image, in a first configuration in which a straight line of observation, connecting the diaphragm (7) of the image capture device and a given prominent point on the face of the wearer or on the frame is essentially horizontal. Taking the image is carried out in a second configuration of the image capture device such that the height of said image capture device is the same as in the first configuration. Calculation of the geometrical/physiognomical parameter comprises an identification on said image of the image of the given prominent point.
Abstract:
The present invention relates to a method and an apparatus for applying a film of coating (63) to one face (108) of an optical element (100), comprising the depositing of the coating on the face of the lens, an adhesive interface (46) being disposed between the coating and the lens, and the inflating of a membrane (62) toward the lens to flatten the coating against the lens. According to the invention, the adjustment is provided of the position of the lens with respect to the membrane, said adjustment being distinct from the inflation of the membrane.
Abstract:
The present invention relates to a method and an apparatus for applying a film of coating (63) to one face (108) of an optical element (100), comprising the depositing of the coating on the face of the lens, an adhesive interface (46) being disposed between the coating and the lens, and the inflating of a membrane (62) toward the lens to flatten the coating against the lens. According to the invention, the adjustment is provided of the position of the lens with respect to the membrane, said adjustment being distinct from the inflation of the membrane.
Abstract:
A monitoring component for monitoring the relative position of a head mounted device and a user of the head mounted device, the head mounted device comprising at least one sensor, the monitoring component comprising: a memory configured to store computer executable code, and a processor configured to execute the following computer executable codes stored in the memory: a communication code configured to receive data from the head mounted device indicative of at least one feature sensed by the at least one sensor of the head mounted device, an information generating code configured to generate an information indicative of the relative position of the head mounted device and the user of the head mounted device based at least on the data received from the head mounted device.
Abstract:
The invention relates to a device (1) for preparing an ophthalmic lens for machining, that comprises a holder (100) capable of maintaining said ophthalmic lens, blocking means (400) including at least one blocking accessory (450) and a handling arm (401) for said clocking accessory, an acquisition device (200) capable of acquiring an image of the ophthalmic lens, and electronic and/or computer processing means (700) capable, on the one hand, of deriving an optical reference of the ophthalmic lens and, on the other hand, of driving the handling arm and/or the holder in order to apply said blocking accessory against the ophthalmic lens in a given blocking position. According to the invention, the blocking means and/or the holder include at least one marking element and the electronic and/or computer processing means are adapted for identifying the position of said marking element on an image acquired by the acquisition means and in which an image of said marking element appears.
Abstract:
The invention relates to an aid device for controlling and making spectacles, that comprises a plurality of trays (30) for receiving spectacles during the production thereof, and a plurality of islands (Z13, Z23, Z33, Z43, Z53) grouping a set of trays in which the spectacles are at the same production stage. According to the invention, the device includes a host computer (6) that stores a register in which each recording is associated with spectacles, and includes, on the one hand, a first section for an identification data of said spectacles and, on the other hand, a second section for an indication data of the island in which the corresponding tray is meant to be placed, and a management software of said register installed on said host computer and including request means adapted for transmitting to the register a request concerning one and/or the other of said first and second sections.
Abstract:
método de determinação de pelo menos um parâmetro de projeto óptico de uma lente oftálmica progressiva a invenção se refere a um método de determinação de pelo menos um parâmetro de projeto óptico de uma lente oftálmica progressiva destinada a equipar uma armação escolhida por um portador, em função do comportamento visual desse, compreendendo as etapas seguintes: a) se coloca o portador em uma situação onde efetua uma tarefa visual para uma primeira distância de trabalho, b) se determinam, no momento dessa tarefa visual, pelo menos duas direções do olhar do portador nessa primeira distância de trabalho em um referencial da cabeça do portador, c) se determina uma posição relativa de uma superfície ligada à referida armação ou a uma lente oftálmica destinada a equipar a referida armação nesse referencial da cabeça do portador, d) se determina, para cada direção do olhar na primeira distância de trabalho determinada na etapa b), a interseção entre essa direção do olhar na primeira distância de trabalho e a referida superfície, de modo a estabelecer uma cartografia desses pontos de interseção nessa superfície, e) se deduz dessa cartografia o referido parâmetro de projeto óptico procurado.