公开(公告)号：JPS5130678A

公开(公告)日：1976-03-16

申请号：JP8519375

申请日：1975-07-11

Applicant: ESSILOR INT

Inventor： GYUI SHARURO

IPC: B23Q7/00 ,  B23Q39/04 ,  B24B13/00 ,  G02C7/02

公开(公告)号：JP2002079447A

公开(公告)日：2002-03-19

申请号：JP2001210325

申请日：2001-07-11

Applicant: ESSILOR INT

Inventor： NAUCHE MICHEL

IPC: G02C13/00 ,  B24B9/14 ,  B24D5/16 ,  B24D7/18

Abstract: PROBLEM TO BE SOLVED: To provide a chamfering method and a chamfering device capable of eliminating the inaccurateness in chamfering caused by the unavoidable deformation of a normal spectacle lens, and the unavoidable inaccurateness of the software and the hardware of an effective grinding machine effectively relating to a supporting shaft. SOLUTION: In this method of improving the accuracy in the chamfering motion applied to the spectacle lens, compensating means 22, 22', 18, 18' having the elastic deformation absorbing capacity, are inserted between a peripheral part of a member composed of a chamfering tool 14 to be used or the spectacle lens 10 to be worked as one member, and a supporting shaft of the member as the other member.

公开(公告)号：JP2000214419A

公开(公告)日：2000-08-04

申请号：JP2000017919

申请日：2000-01-24

Applicant: ESSILOR INT

Inventor： FRANCOIS SANDRINE ,  AHSBAHS FRANCOISE

IPC: G02C7/06 ,  G02C7/02

Abstract: PROBLEM TO BE SOLVED: To provide a progressive multifocal lens for spectacles which has wide near sight and intermediate visual field region at an admission rate of refracting power of >=2.5 and has a uniform distribution of spherical surface values and cylinder values. SOLUTION: This lens has a far sight visual field region (VL), the near sight visual field region (VP), the intermediate visual field region, a progressive main meridian passing these three regions and a mounting center (CM). The far sight visual field region includes an angle sector of 110 deg. in central angle of which the apex exists at the mounting center. The spherical surface value and cylinder value thereon are

公开(公告)号：JP2000131652A

公开(公告)日：2000-05-12

申请号：JP30112799

申请日：1999-10-22

Applicant: ESSILOR INT

Inventor： GUILLERMIN LAURENT

IPC: G02C5/14 ,  B24B9/14 ,  G02C3/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for determining the orbits of grooves formed by machining at the edges of lenses to be mounted at a spectacle frame of a 'metal supra' type. SOLUTION: The lenses 20 are adapted to be fitted to rims or frames 11 of the spectacle frame 10. The respective rims or frames 11 have rigid portions 12 and filaments 13 extending from the one-side ends (E1) of the rigid portions 12 to the other ends (E2) thereof. If the lenses are formed in the manner described above, the curvature of the rigid portions 12 may be systematically taken into consideration with respect to the portions (T1) of the required orbits of the grooves corresponding to the rigid portions 12 in question of the spectacle frame 10.

公开(公告)号：JPH11206712A

公开(公告)日：1999-08-03

申请号：JP29751298

申请日：1998-09-11

Applicant: ESSILOR INT

Inventor： GENEVIEVE ELISABETH ,  NAUCHE MICHEL ,  HOREL PATRICK

IPC: A61B3/11 ,  G02C13/00

Abstract: PROBLEM TO BE SOLVED: To prevent position error generation between a lens optical axis and the line-of-sight axis of a human by positioning the centroid of a specified number of hinge-connected image formation units below a peal part axis. SOLUTION: In this image formation device 10, two of the image formation unit B1 and an observation unit B2 are integrally hinge-connected and provided in the form of a pendulum around the horizontal axis A3 of a peak part. The image formation unit B1 is provided with an image acquisition device 11 and restrains the direction of a corresponding image formation axis A1 and the observation unit B2 is provided with an observation screen 12 and restrains a corresponding optical axis A2. In such a constitution, the centroid of the image formation unit B1 is positioned below the axis A3 of the peak part of the device 10. They are housed in a casing 13. In such a manner, the deviation of the lens optical axis and the line-of-sight axis is the human is eliminated and visual quality is prevented from being damaged.

公开(公告)号：JPH11194310A

公开(公告)日：1999-07-21

申请号：JP29542798

申请日：1998-10-16

Applicant: ESSILOR INT

Inventor： PEDRONO CLAUDE ,  HARSIGNY CHRISTIAN ,  FAUQUIER CATHERINE ,  JURKIEWIEZ FANNY ,  ROLAND ERIC

IPC: G02C7/06 ,  G02B3/10 ,  G02C7/02

Abstract: PROBLEM TO BE SOLVED: To provide a lens having an aspherical surface which has a near sight region larger than the near sight region of the conventional multifocal lens and wider in width and is small in aberrations, i.e., astigmatism. SOLUTION: Δ is used in order to express the difference in the average spherical value between a near sight control point and the geometrical center of the lens. The surface area which is the surface area delineated by a point shorter than 20 mm from the geometrical center of the lens and of which the cylindrical value exists between 0.42Δ and 0.84Δ is made larger than the surface area which is the surface area delineated by a point shorter than 20 mm from the geometrical center of the lens and of which the cylindrical value is smaller than 0.42Δ.

公开(公告)号：JPH08325337A

公开(公告)日：1996-12-10

申请号：JP13339096

申请日：1996-05-28

Applicant: ESSILOR INT

Inventor： GABURIERU KEITA ,  PEIKI JIYAN

IPC: G02C7/02 ,  B29D11/02 ,  B29K33/04 ,  C08F2/48 ,  C08F20/38 ,  C08F220/38 ,  C08F228/02 ,  G02B1/04

公开(公告)号：JPH07276389A

公开(公告)日：1995-10-24

申请号：JP5388695

申请日：1995-03-14

Applicant: ESSILOR INT

Inventor： JIYAN POORU KAANOO ,  JIYAN FURANSOWA MAANIYU ,  JIYORUJIYU BUAISU

IPC: G02C7/04 ,  B29C33/00 ,  B29C39/02 ,  B29C39/26 ,  B29C39/32 ,  B29C39/38 ,  B29C65/68 ,  B29D11/00 ,  B29L11/00

Abstract: PURPOSE: To induce the cross-sectional contraction of a closure sleeve by selecting a heat-shrinkable synthetic material to heat the same in a mold for an optical lens of a type wherein the closure sleeve constituting a molding cavity required along with shells is fitted around two molding shells in an annular form. CONSTITUTION: A heat-shrinkable synthetic material of polyester like polyvinyl chloride is formed into a strip-like article 16 on the sections 13A, 13B of molding shells 10A, 10B to be wound to form a closure sleeve 14 and two end portions of this sleeve are locally welded. High temp. air is blown by using a plurality of nozzles turned toward a sub-assembly 17 in a radial direction to heat the subassembly 17. After this heating work cross-sectional contraction can be induced in the closure sleeve 14 according to cooling.

公开(公告)号：JPH07238120A

公开(公告)日：1995-09-12

申请号：JP32433193

申请日：1993-12-22

Applicant: ESSILOR INT

Inventor： GABURIERU KETA ,  JIYOERU RENOODEINOO

IPC: G02C7/02 ,  B29C39/00 ,  B29D11/00 ,  B29K33/00 ,  B29L11/00 ,  C08F20/26 ,  C08F20/38 ,  C08F220/10 ,  C08F220/28 ,  C08F220/30 ,  C08F290/00 ,  C08F290/06 ,  G02B1/04

公开(公告)号：JPH0752015A

公开(公告)日：1995-02-28

申请号：JP88194

申请日：1994-01-10

Applicant: ESSILOR INT

Inventor： MISHIERU NOOSHIYU ,  ROORAN GIYUIIYURUMAN

IPC: B24B9/14 ,  B24B47/22

Abstract: PURPOSE: To provide an ophthalmic lens grinding machine capable of adapting a machining process to the kind of glass to be formed and machining quickly and accurately without a counterweight or a spring. CONSTITUTION: This grinding machine includes a grooved block 17 born on the end of a veneer 13. The grooved block 17 has an elliptic slot 18, and a disc 12 mounted on a lens shaft 11 is moved in the slot 18. In this grinding machine, positive connection is applied between the veneer 13 driven by a motor 15 and a frame head 4 by the grooved block 17. Accordingly, the position of inclination of the frame head 4 relative to the frame head shaft 7 is directly controlled by the position of the veneer 13. The motor 15 for driving the veneer 13 is controlled in relation to the inclination position of the gripping means 8, 9 and the complete form of the lens.