公开(公告)号：FR2895092A1

公开(公告)日：2007-06-22

申请号：FR0512822

申请日：2005-12-16

Applicant: ESSILOR INT

Inventor： BOURDONCLE BERNARD ,  MARIN GILDAS

IPC: G02C7/06

Abstract: L'invention a pour objet un procédé de détermination par optimisation d'une lentille ophtalmique pour un porteur auquel une addition de puissance a été prescrite. Le procédé propose d'utiliser comme cible pour l'optimisation de la lentille, dans les conditions du porté, un écart entre l'orientation moyenne des axes d'astigmatisme résultant et la verticale inférieur à 2,5 degree dans une première zone de contrôle délimitée par une ellipse centrée sur la méridienne de progression à mi-hauteur entre la croix de montage (CM) et le point de référence en vision de près (VP), ladite ellipse présentant un grand axe supérieur à 35 degree et un petit axe compris entre 3,8 degree et 4,5 degree .L'invention permet d'améliorer les performances des lentilles multifocales progressives en vision intermédiaire.

公开(公告)号：CA2628006A1

公开(公告)日：2007-06-07

申请号：CA2628006

申请日：2006-07-04

Applicant: ESSILOR INT

Inventor： BOURDONCLE BERNARD ,  DECRETON BRUNO

IPC: G02C7/02

Abstract: The progressive multifocal ophthalmic lens with a complex surface including a prism reference point, a cross mounting unit located at 8[deg] above the reference point, and an umbilicated progression meridian with a power addition value of >=1.5 diopter. The power addition value lies between the reference point of far and near vision. Radius of curvature of the lens is adjusted for the far vision using a reduced root mean square deviation with the power addition lower than 0.65 mu m by diopter. The progressive multifocal ophthalmic lens with a complex surface including a prism reference point, a cross mounting unit located at 8[deg] above the reference point, and an umbilicated progression meridian with a power addition value of >=1.5 diopter. The power addition value lies between the reference point of far and near vision. Radius of curvature of the lens is adjusted for the far vision using a reduced root mean square deviation with the power addition lower than 0.65 mu m by diopter, a zone bounded by a centered circle on the prism reference point and by a diameter of the circle corresponding to sweep angle of 80[deg], a progression length is =25[deg], and a difference in reduced root mean square deviation is lower than 0.12 mu m by diopter. The reduced root mean square deviation is determined by calculating the nullified coefficient of orders of 1 and 2 correspond to defocalization in Zernike polynomial decomposition of a wave front face passes through the lens. The progression length is defined as lower common angle of the cross mounting unit up to the point of the meridian for which an optical power carrier reaches 85% of the power addition value. The difference in the reduced root mean square deviation is calculated by an absolute value. The zone comprises a control point of far vision in which the zone is bounded by the half centered circle on the cross mounting unit and by radius of the circle corresponds to an elevation of 25[deg]. The difference in the reduced root mean square deviation between two symmetrical points in half circle is =0.12 mu m by diopter below a horizontal line located at 8[deg] above the cross mounting unit. The half circle has a horizontal base that passes through the cross mounting unit. The symmetrical axis of the half circle is scattered with the progression meridian. Independent claims are included for: (1) a visual equipment; (2) a long-sighted vision correction process; and (3) a lens assembling process.

公开(公告)号：AU2006321323A1

公开(公告)日：2007-06-07

申请号：AU2006321323

申请日：2006-07-04

Applicant: ESSILOR INT

Inventor： BOURDONCLE BERNARD ,  DECRETON BRUNO

IPC: G02C7/02

Abstract: The progressive multifocal ophthalmic lens with a complex surface including a prism reference point, a cross mounting unit located at 8[deg] above the reference point, and an umbilicated progression meridian with a power addition value of >=1.5 diopter. The power addition value lies between the reference point of far and near vision. Radius of curvature of the lens is adjusted for the far vision using a reduced root mean square deviation with the power addition lower than 0.65 mu m by diopter. The progressive multifocal ophthalmic lens with a complex surface including a prism reference point, a cross mounting unit located at 8[deg] above the reference point, and an umbilicated progression meridian with a power addition value of >=1.5 diopter. The power addition value lies between the reference point of far and near vision. Radius of curvature of the lens is adjusted for the far vision using a reduced root mean square deviation with the power addition lower than 0.65 mu m by diopter, a zone bounded by a centered circle on the prism reference point and by a diameter of the circle corresponding to sweep angle of 80[deg], a progression length is =25[deg], and a difference in reduced root mean square deviation is lower than 0.12 mu m by diopter. The reduced root mean square deviation is determined by calculating the nullified coefficient of orders of 1 and 2 correspond to defocalization in Zernike polynomial decomposition of a wave front face passes through the lens. The progression length is defined as lower common angle of the cross mounting unit up to the point of the meridian for which an optical power carrier reaches 85% of the power addition value. The difference in the reduced root mean square deviation is calculated by an absolute value. The zone comprises a control point of far vision in which the zone is bounded by the half centered circle on the cross mounting unit and by radius of the circle corresponds to an elevation of 25[deg]. The difference in the reduced root mean square deviation between two symmetrical points in half circle is =0.12 mu m by diopter below a horizontal line located at 8[deg] above the cross mounting unit. The half circle has a horizontal base that passes through the cross mounting unit. The symmetrical axis of the half circle is scattered with the progression meridian. Independent claims are included for: (1) a visual equipment; (2) a long-sighted vision correction process; and (3) a lens assembling process.

公开(公告)号：FR2884325B1

公开(公告)日：2007-06-01

申请号：FR0503543

申请日：2005-04-08

Applicant: ESSILOR INT

Inventor： BOURDONCLE BERNARD ,  GUILLOUX CYRIL ,  JOSSO HERVE

IPC: G02C7/06

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.

公开(公告)号：ES2274560T3

公开(公告)日：2007-05-16

申请号：ES98402573

申请日：1998-10-16

Applicant: ESSILOR INT

Inventor： BOURDONCLE BERNARD ,  FRANCOIS SANDRINE

IPC: G02C7/02

Abstract: La invención se refiere a un par de lentes oftálmicas progresivas para gafas; cada una de las lentes tiene una superficie asférica con una zona de visión alejada, una zona de visión intermedia y una zona de visión cercana, y buena visión directa monocular y binocular a lo largo del meridiano principal. En cada punto de la superficie asférica hay una esfera media que es proporcional a la semisuma de los radios de curvatura máximo y mínimo, expresados en metros, y al índice de refracción del material de las lentes. La invención sugiere reducir, para una dirección dada de visión, el valor absoluto de la diferencia entre un parámetro binocularidad para dos puntos en el espacio objeto. El parámetro binocularidad se define por un punto en el espacio objeto como la diferencia relativa {dl}S de la esfera media para los puntos de la superficie esférica de las lentes derecha e izquierda a través de las cuales el portador ve el mencionado punto.

公开(公告)号：FR2880428A1

公开(公告)日：2006-07-07

申请号：FR0500038

申请日：2005-01-04

Applicant: ESSILOR INT

Inventor： BOURDONCLE BERNARD ,  DECRETON BRUNO ,  GUILLOUX CYRIL

IPC: G02C7/06

Abstract: Les variations de puissance optique et d'astigmatisme d'un verre ophtalmique progressif (10) résultent d'une part de variations de sphère et de cylindre de la face antérieure (2) du verre, et d'autre part de variations d'une autre grandeur physique du verre. II est alors possible de personnaliser le design du verre progressif en fonction d'au moins une caractéristique comportementale d'un porteur du verre. Cette personnalisation peut être effectuée en reprise, en modulant des valeurs de la grandeur physique entre des points différents du verre. Des verres progressifs ayant des designs différents peuvent ainsi être obtenus à partir de verres semi-finis identiques. La grandeur physique peut être la sphère et le cylindre de la face postérieure du verre (3).

公开(公告)号：ES2181024T3

公开(公告)日：2003-02-16

申请号：ES97940198

申请日：1997-09-09

Applicant: ESSILOR INT

Inventor： BAUDART THIERRY ,  BOURDONCLE BERNARD ,  LALOUX THIERRY ,  PEDRONO CLAUDE ,  ROSSIER CLAIRE

IPC: G02C7/06 ,  G02C7/02

Abstract: The invention concerns a set of progressive multifocal opthalmic lenses, each having a first progressive multifocal surface and a second surface preferably spherical. It proposes to define the set of lenses with regard to the optical characteristics of the lenses, and particularly wearer power and oblique astigmatism, in worn conditions. For this purpose, the invention defines an ergorama associating with each sight direction in worn conditions a target object point, and a given power. This ergorama supplies a power target for a definition by optimisation of the lenses, and is used in a radii plotting programme for calculating the optical characteristics during optimisation. The set of lenses has substantially identical optical performances for a given addition, whatever the power of the far vision reference point.

公开(公告)号：CA2363121A1

公开(公告)日：2001-06-28

申请号：CA2363121

申请日：1999-12-22

Applicant: ESSILOR INT

Inventor： FRANCOIS SANDRINE ,  BOURDONCLE BERNARD

IPC: G02B3/10 ,  G02C7/02 ,  G02C7/06

Abstract: The invention relates to a pair of progressive ophthalmic spectacle lenses; each lens has an aspherical surface with a far vision zone, an intermediate vision zone and a near vision zone, and good monocular and binocular foveal vision along the principal meridian. At each point of the aspherical surface there is a mean sphere which is proportional to the half sum of the maximum and minimum radii of curvature expressed in meters, and to the refractive index of the lens material. The invention suggests reducing, for a given direction of sight, the absolute value of the difference between a binocularity parameter for two points in the object space. The binocularity parameter is defined for a point in the object space as the relative difference .DELTA.S of the mean sphere for the points of the aspherical surface of the right and left lenses through which the wearer sees said poin t.

公开(公告)号：ITMI940609A1

公开(公告)日：1995-10-01

申请号：ITMI940609

申请日：1994-03-31

Applicant: ESSILOR INT

Inventor： ASHBAHS FRANCOISE ,  BOURDONCLE BERNARD ,  DELDALLE BENEDICTE ,  LIEGE CHRISTIAN

IPC: G02B20060101 ,  G02C7/02 ,  G02C7/06

公开(公告)号：ES2482701T3

公开(公告)日：2014-08-04

申请号：ES06726160

申请日：2006-03-31

Applicant: ESSILOR INT

Inventor： BOURDONCLE BERNARD ,  GUILLOUX CYRIL ,  JOSSO HERVÉ

IPC: G02C7/02 ,  G02C7/06

Abstract: Una lente oftálmica para gafas que presenta una superficie compleja que tiene un centro geométrico (0, 0), una cruz de montaje (CM), una meridiana sensiblemente umbilicada que presenta una adición de potencia (A) entre un punto de referencia en visión de lejos (VL) y un punto de referencia en visión de cerca (VP), teniendo la superficie compleja: - una diferencia de esfera media normalizada a la adición sobre la meridiana, entre el centro geométrico (0, 0) del cristal y el punto de control en visión de lejos (VL), inferior o igual a 0,1; - una longitud de progresión 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 que la esfera media alcanza el 85% de la progresión de la adición; - un rebote de la cantidad de esfera normalizada a la adición (Esfera/Adición) sobre un círculo de radio de 20 mm centrado sobre el centro geométrico de la lente inferior a 0,11; - una pendiente máxima de la variación de la esfera normalizada a la adición a lo largo de la meridiana comprendida entre 0,09 y 0,11 mm-1.