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公开(公告)号:FR2956222A1
公开(公告)日:2011-08-12
申请号:FR1050896
申请日:2010-02-09
Applicant: ESSILOR INT
Inventor: BERTHEZENE MARIE-ANNE , BOURDONCLE BERNARD , CALIXTE LAURENT , GUILLOUX CYRIL , MOUSSET SOAZIC , PAILLE DAMIEN
IPC: G02C7/06
Abstract: L'invention se rapporte à une lentille présentant certaines propriétés dont : - un cercle regroupant l'ensemble des points de la lentille ayant la même abscisse et la même ordonnée que des points situés sur un cercle dans le plan du repère, de diamètre 35 millimètres et centré sur un point situé 8,5 millimètres en dessous de la croix de montage et décalé horizontalement du côté nasal de 1,25 millimètre, - un disque regroupant l'ensemble des points de la lentille ayant la même abscisse et la même ordonnée que des points situés à l'intérieur dudit cercle, - une longueur de progression inférieure à 14,5 millimètres, - une différence de rapport entre la valeur de cylindre et l'addition surfacique inférieure à 0,2 en valeur absolue pour tout couple de points de la lentille symétriques par rapport à la croix de montage et ayant la même ordonnée que la croix de montage, et une abscisse inférieure à 20 millimètres en valeur absolue - un premier rapport entre : - la valeur maximale de cylindre pour l'ensemble des points du cercle et - l'addition surfacique inférieur à 0,7; et - un deuxième rapport entre : - la valeur maximale de cylindre pour l'ensemble des points du disque et - l'addition surfacique inférieur ou égal à 1,05. L'invention permet d'améliorer le confort du porteur.
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公开(公告)号:ES2323088T3
公开(公告)日:2009-07-06
申请号:ES06290652
申请日:2006-04-21
Applicant: ESSILOR INT
Inventor: GUILLOUX CYRIL , JOSSO HERVE
Abstract: Lente oftálmica que presenta una superficie compleja que tiene un centro geométrico (0,0), una cruz de montaje (CM) situada 4 mm por encima del centro geométrico y una meridiana de progresión sensiblemente umbilicada que presenta una adición de potencia (A) superior o igual a 1,5 dioptrías entre un punto de referencia en visión de lejos (VL) y un punto de referencia en visión de cerca (VP), teniendo la superficie compleja: - un valor de cilindro normalizado a la adición (C/A) inferior a 0,8 en un círculo de radio 20 mm centrado sobre el centro geométrico de la lente; - un rebote de la cantidad esfera normalizada a la adición (D/A) sobre el círculo de radio 20 mm centrado sobre el centro geométrico de la lente inferior a 0,04; - una longitud de progresión (LP) inferior o igual a 14 mm, estando definida la longitud de progresión como la distancia vertical entre la cruz de montaje (CM) y el punto de la meridiana para el cual la esfera media alcanza 85% de la progresión de la adición.
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公开(公告)号:AT423989T
公开(公告)日:2009-03-15
申请号:AT06290652
申请日:2006-04-21
Applicant: ESSILOR INT
Inventor: GUILLOUX CYRIL , JOSSO HERVE
Abstract: The lens has a complex surface having a cylinder value normalized to the addition of less than 0.8 in a circle of radius 20mm with respect to the center of lens. The rebound in the sphere quantity normalized to the addition on the circle is less than 0.04, and the progression length defined between fitting cross and a point on the meridian at which the mean sphere reaches 85% of progression of the addition, is 14mm or less. Independent claims are also included for the following: (1) method for correcting vision of presbyopic subject; and (2) method for fitting ophthalmic lens in visual equipment.
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公开(公告)号:BRPI0519511A2
公开(公告)日:2009-02-25
申请号:BRPI0519511
申请日:2005-12-19
Applicant: ESSILOR INT
Inventor: BOURDONCLE BERNARD , DECRETON BRUNO , GUILLOUX CYRIL
IPC: G02C7/02
Abstract: The invention relates to a progressive ophthalmic lens and to a method of producing one such lens. Variations in the optical power and the astigmatism of a progressive ophthalmic lens (10) result from (i) spherical and cylindrical variations in the anterior face (2) of the lens and (ii) variations in another physical unit of the lens. In this way, it is possible to customise the design of the progressive lens as a function of at least one behavioural characteristic of the lens wearer. Said customisation can be repeated by modulating the values of the physical unit between the different points of the lens. As a result, progressive lenses with different designs can be obtained from identical semi-finished lenses. The physical unit can comprise the sphere and the cylinder of the posterior face of the lens (3).
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公开(公告)号:FR2898193B1
公开(公告)日:2008-05-09
申请号:FR0601810
申请日:2006-03-01
Applicant: ESSILOR INT
Inventor: GUILLOUX CYRIL , DE GAUDEMARIS DIANE , BERTHEZENE MARIE ANNE , CARIMALO CELINE
Abstract: A method for the determination by optical optimization of a personalized progressive ophthalmic lens intended to be inserted into a frame chosen by a given wearer for whom a power addition has been prescribed in near vision, the method comprising the stages of: - measuring parameters representing the frame chosen by the wearer; - choosing an initial distribution of power and resulting astigmatism defect targets for each direction of viewing under wearing conditions in an ordinary frame; - calculating transformation coefficients using the measured parameters representing the chosen frame and standard parameters; - calculating a personalized distribution of the power and resulting astigmatism defect targets on the lens by applying the calculated transformation coefficients to the initial distribution. The method makes it possible to retain the proportion of the distribution between the far-vision, near-vision and intermediate-vision zones whatever the size and the shape of the frame chosen.
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公开(公告)号:FR2898194B1
公开(公告)日:2008-05-02
申请号:FR0601811
申请日:2006-03-01
Applicant: ESSILOR INT
Inventor: GUILLOUX CYRIL , DE GAUDEMARIS DIANE , CARIMALO CELINE
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公开(公告)号:FR2906621A1
公开(公告)日:2008-04-04
申请号:FR0608515
申请日:2006-09-28
Applicant: ESSILOR INT
Inventor: DE GAUDEMARIS DIANE , GUILLOUX CYRIL , MURADORE FABIEN
IPC: G02C7/02
Abstract: L'invention a pour objet un procédé de détermination par optimisation d'une lentille ophtalmique comprenant les étapes de:- définition d'une surface de départ pour une face de la lentille avec une zone centrale (15) de diamètre Dini et une zone périphérique (17) de diamètre intérieur Drac ;- choix d'une formule d'interpolation ;- optimisation de la lentille en appliquant la fonction d'interpolation aux zones centrale (15) et périphérique (17) pour définir une surface interpolée comprenant une zone de raccord (16), la surface interpolée minimisant une fonction de mérite (FM) pour différentes altitudes relatives de la zone périphérique (17) par rapport à la zone centrale (15).L'invention permet de réduire l'épaisseur de la lentille sans accentuer les défauts d'oblicité pour un bon confort visuel du porteur.
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公开(公告)号:CA2581650A1
公开(公告)日:2007-09-24
申请号:CA2581650
申请日:2007-03-13
Applicant: ESSILOR INT
Inventor: GUILLOUX CYRIL , CARIMALO CELINE , DE GAUDEMARIS DIANE , BERTHEZENE MARIE-ANNE
Abstract: A method for the determination of a progressive ophthalmic lens for a give n wearer comprises the stages of: - determining the axial length (LA) of the wearer's eye, - determining an ergorama associating a sight point with each direction of viewing under wearing conditions. - determining power and resulting astigmatism defect targets for each direction of viewing under wearing conditions, the targets being a function of the axi al length of the wearer's eye. - calculating the power required on the lens for each direction of viewing b y successive iterations in order to obtain the target power defect and the target resulting astigmatism.
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公开(公告)号:AU2006234390A1
公开(公告)日:2006-10-19
申请号:AU2006234390
申请日:2006-03-31
Applicant: ESSILOR INT
Inventor: BOURDONCLE BERNARD , JOSSO HERVE , GUILLOUX CYRIL
Abstract: An ophthalmic lens has a complex surface with an optical centre, a fitting cross (FC) situated 4 mm above the optical centre, a meridian having a power addition between reference points in far vision (FV) and in near vision (NV). The complex surface has a mean-sphere difference normalized to the addition on the meridian, between the geometric centre of the lens and the control point in far vision, less than or equal to 0.1; a progression length less than or equal to 14 mm; a rebound of the sphere quantity normalized to the addition on a circle with a radius of 20 mm centred on the geometric centre of the lens less than 0.11, and a maximum slope of the sphere variation normalized to the addition along the meridian comprised between 0.9 and 0.11 mm -1 . The lens is suited to broadened far vision with a good accessibility to near vision.
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公开(公告)号:FR2871248B1
公开(公告)日:2006-09-08
申请号:FR0406002
申请日:2004-06-03
Applicant: ESSILOR INT
Inventor: CARIMALO CELINE , GUILLOUX CYRIL , ROLAND ERIC
Abstract: The invention relates to an ophthalmic lens for long-sighted and intermediate vision comprising a complex surface provided with an optical centre, a substantially umbilicated meridian line and an average size sphere progression on the top surface equal to or greater than 0.50 diopters. The complex surface is provided in the top part thereof with a long-sighted vision area which is formed by cylinder points equal to or less than 0.25 diopters and covers an angular sector focused on the optical centre and whose angle is equal to 160°. Said complex surface also comprises an average size substantially constant sphere on the meridian line in the long-sighted vision area and a progression length equal to or less than 12 mm. Said progression length is defined as a vertical distance between the optical centre and a median point for which the average sphere if greater than 85% of progression on the average sphere in the optical centre. The inventive lens is suitable for driving and prescribed to persons having additional prescription greater than a power progression, whereby a correction adaptable to the power prescription of a longsighted vision person is provided in the top part of the lens. The lower part of the lens ensures the correction needed for an intermediate vision person.
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