Abstract:
The invention relates to a method for trimming ophthalmic lenses in which an optical reference frame of the lens concerned and/or a trimming instruction is determined by means of a centration and/or trimming characteristic relating to the lens or to a related frame. According to the invention, the method comprises: a step in which a processing unit of a workshop (1) reads out from a remote register (200) in which each record is associated with a frame type and/or lens type, and comprises at least one centration and/or trimming characteristic of this type, with a search for a record corresponding to the type to which the frame and/or the lens concerned belongs, then, if no corresponding record is found in the register, a step of determining said at least one centration and/or trimming characteristic of the frame and/or of the lens in question, and a step of storing, in a new record of the register, said at least one centration and/or trimming characteristic.
Abstract:
The method involves equipping a person with a given spectacle having given lenses (31, 32) and a given frame (33) identical to a target frame (13), and directly/indirectly measuring height (h) of a pupillary point (Pu2) in a reference frame related to the given frame. Pupillary distance on target lenses (11, 12) is changed from a centering point (Pc1) of the target lenses. Centering position of the target lenses is assumed with respect to the target frame such that the centering point is located at the same height as the pupillary point in the reference frame. An independent claim is also included for a device for implementing the method of centering a target ophthalmic lens of a target spectacle on a circle less type target frame.
Abstract:
A vision testing device includes a light-occluding casing for administering vision tests. A viewing station is coupled to the light-occluding casing so a test subject can see a first digital display housed within the light-occluding casing. A second digital display is external to the light-occluding casing and is configured to receive touch-based input. One or more predetermined vision tests are displayed via the first digital display. The second digital display receives input corresponding to the vision test displayed via the first digital display. The second digital display includes response indicators that can be activated via a swiping motion on the second digital display, and a response is recorded as a result of the swiping motion. Each answer corresponding to a swiping motion is stored and output as a result of the vision test.
Abstract:
A vision testing device includes a light-occluding casing for administering vision tests. A viewing station is coupled to the light-occluding casing so a test subject can see a first digital display housed within the light-occluding casing. A second digital display is external to the light-occluding casing and is configured to receive touch-based input. One or more predetermined vision tests are displayed via the first digital display. The second digital display receives input corresponding to the vision test displayed via the first digital display. The second digital display includes response indicators that can be activated via a swiping motion on the second digital display, and a response is recorded as a result of the swiping motion. Each answer corresponding to a swiping motion is stored and output as a result of the vision test.
Abstract:
A vision testing device includes a light-occluding casing for administering vision tests. A viewing station is coupled to the light-occluding casing so a test subject can see a first digital display housed within the light-occluding casing. A second digital display is external to the light-occluding casing and is configured to receive touch-based input. One or more predetermined vision tests are displayed via the first digital display. The second digital display receives input corresponding to the vision test displayed via the first digital display. The second digital display includes response indicators that can be activated via a swiping motion on the second digital display, and a response is recorded as a result of the swiping motion. Each answer corresponding to a swiping motion is stored and output as a result of the vision test.
Abstract:
L'invention concerne un procédé de détourage de lentilles ophtalmiques dans lequel on détermine un référentiel optique de la lentille concernée et/ou une consigne de détourage de cette lentille au moyen d'une caractéristique de centrage et/ou de détourage relative à la lentille ou à une monture associée à la lentille.Selon l'invention, le procédé comprend :- une étape de lecture par une unité de traitement d'un atelier (1) d'un registre distant (200) dont chaque enregistrement est associé à un type de montures et/ou de lentilles, et comprend au moins une caractéristique de centrage et/ou de détourage de ce type, avec une recherche d'un enregistrement correspondant au type auquel appartient la monture et/ou la lentille concernée, puis, si aucun enregistrement correspondant du registre n'est trouvé,- une étape de détermination de ladite au moins une caractéristique de centrage et/ou de détourage de la monture et/ou de la lentille concernée, et- une étape de mise en mémoire, dans un nouvel enregistrement du registre, de ladite au moins une caractéristique de centrage et/ou de détourage.
Abstract:
La présente invention concerne une méthode de centrage d'une lentille ophtalmique cible (11, 12), présentant une géométrie connue, sur une monture cible (13) percée, comportant les étapes d'identification du point pupillaire (Pu2) sur une lentille de présentation d'une monture de présentation (33) identique à la monture cible, de mesure de la hauteur pupillaire et des demi-écarts (Eg,Ed) pupillaires des points pupillaires, de repérage du référentiel optique de la lentille cible, de report de la hauteur pupillaire et des demi-écarts pupillaires sur la lentille cible, et de déduction de la position de centrage de la lentille cible.Selon l'invention, la lentille de présentation présentant un contour (41) différent de celui de la lentille cible après détourage, les mesures sur la lentille de présentation sont réalisées dans un référentiel lié à la monture de présentation et la déduction de la position de la lentille cible est réalisée dans un référentiel lié à la monture cible.