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41.发明专利
公开(公告)号：JP2002181516A
公开(公告)日：2002-06-26
申请号：JP2001338592
申请日：2001-09-28
Applicant: ESSILOR INT
Inventor： FARCY RENE , GUIRRIEC FLORENT , ALMERAS EMMANUEL , GUILLERMIN LAURENT
Abstract: PROBLEM TO BE SOLVED: To provide a method for reading the three-dimensional shape of a profile such as the bezel of a spectacle frame rim. SOLUTION: The optical non-contact method for reading the three-dimensional shape of a profile in accordance with the luminous suction principle includes scanning the profile with a plane light beam intersecting the profile transversely, simultaneously reading the trace of the plane light beam on the profile by means of an optical receiver having an optical pointing axis at a constant non-zero pointing angle to the light beam at a series of positions along the profile, and deducing the three-dimensional shape of the profile from the readings performed at these various positions. On each reading, the light beam of which the trace on the profile is read by the optical receiver is chosen from a plurality of predefined light beams which can be activated alternately. The non-contact optical reading method is particularly suitable for reading the three- dimensional shape of the inside edge of a spectacle frame rim, known as the bezel. A specific device is used to implement the method in this application.
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公开(公告)号：JP2001235712A
公开(公告)日：2001-08-31
申请号：JP2001006932
申请日：2001-01-15
Applicant: ESSILOR INT
Inventor： CHATEAU NICOLAS , FERMIGIER BRUNO , LEGRAS RICHARD
Abstract: PROBLEM TO BE SOLVED: To realize a correction most suitable for a foresighted person by using a range consisting of different lenses limited in numbers. SOLUTION: Two lenses among a pair of lenses for presbyopias are gradually changing and simultaneous visual acuity types, and its gradually changing profile changes so that a refractive power of the center is larger than the circumscription in one lens and is the reverse in the other lens. The range 1 consisting of lenses consists of lenses 2A-2Z and 3A-3Z which make two continuous columns 2 and 3, and their appellative refractive powers differ by a prescribed unit, for example, by 0.25 diopters. The method of prescribing a lens pair has a step for performing a standard visual acuity measurement and inspecting method, a step for deciding whether which eye is good in tolerance against a defocus due to the presbyopia and a step for selecting a lens suitable for each eye from each column of the range according to the inspected result.
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公开(公告)号：JP2000111846A
公开(公告)日：2000-04-21
申请号：JP27507799
申请日：1999-09-28
Applicant: ESSILOR INT
Inventor： BAUDART THIERRY , LE SAUX GILLES
Abstract: PROBLEM TO BE SOLVED: To acquire a lens having excellent optical characteristic and suitable for a person who wears spectacles for astigmatism by correcting a working lens so that a difference between the power of the working lens and the power of a target lens and a difference between the residual astigmatism and the astigmatism of the target lens may be minimized. SOLUTION: The working lens is corrected so that the difference between the power of the working lens and the power of the target lens and the difference between the residual astigmatism and the astigmatism of the target lens may be minimized in a reference frame related to an eye in plural line-of-sight directions corresponding to a point (j) on a top sphere and defined by using spherical coordinates by two angles. The residual astigmatism is defined as the difference between the prescribed astigmatism and the astigmatism generated by the working lens with respect to amplitude and an axial center in the reference frame related to the eye and in the respective line-of-sight directions.
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公开(公告)号：JPH11194308A
公开(公告)日：1999-07-21
申请号：JP29541498
申请日：1998-10-16
Applicant: ESSILOR INT
Inventor： CHAUVEAU JEAN-PIERRE , BOURDONCLE BERNARD , FRANCOIS SANDRINE
Abstract: PROBLEM TO BE SOLVED: To provide the well proportioned apportionment of isospherical value lines and isocylindrical value lines by assuring rapid progression of average spherical values and assuring the presence of a large near sight region. SOLUTION: This lens 1 is the multifocal ocular lens including an aspherical surface having an average spherical value and cylindrical value at all points thereon and includes the main meridian 2 of the progression passing the three regions; the far sight region VL, the near sight region VP and the intermediate sight region VI. The main length of the progression regulated as a ratio between a power increment value and the max. inclination of the average spherical value along the meridian 2 is set shorter than 16 mm. The spherical value is monotonously changed on both sides of the meridian 2 as a function of an angle on a radial circle of 20 mm to be aligned to the geometrical center of the lens 1. The far sight region VL delineated in the upper part of the lens 1 by a line formed at the point equal to the power increment of half the cylindrical value is formed to have an angle region having a start point at the geometrical center of the lens 1 having a bevel angle larger than 150 deg..
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公开(公告)号：JPH09179074A
公开(公告)日：1997-07-11
申请号：JP30203796
申请日：1996-11-13
Applicant: ESSILOR INT
Inventor： KUROODO PEDORONO
Abstract: PROBLEM TO BE SOLVED: To provide the multifocal lens which is formed in consideration of the upper and lower preferable positions of the eye within the eye socket-and variation (decrease) in shortsightedness with the age. SOLUTION: A principal longitude part DP positioned in an intermediate sight distance area VI and a short sight area VP is divided into 1st section DC which is at an angle α to a perpendicular and a 2nd section CP which is at an angle ω to the perpendicular. In this case, the value of the angle αis an increase function of an additional value A of the diopter of the lens and the angle ωis smaller than the angle α. At the point C where those two sections meet each other, the mean spericity value of an aspherical surface A corresonds to a diopter additional value which is 0.8-0.92 time as large as the nominal diopter additional value of the lens.
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Patent Agency Ranking46.发明专利
公开(公告)号：JPH09105890A
公开(公告)日：1997-04-22
申请号：JP19825496
申请日：1996-06-24
Applicant: ESSILOR INT
Inventor： ROORAN GIYUIERUMAN , ANRI UUGA , PATORITSUKU OREERU
Abstract: PROBLEM TO BE SOLVED: To provide a calibration gage suitable for calibration of a contour reader and a calibration method using this calibration gage by measuring the size between the inner flanks of the calibration gage and the size between the outer flanks. SOLUTION: The calibration gauge 48 is designed so as to be mounted at the contour reader 10 to be calibrated in place of a spectacle frame 12. Since the calibration gage 48 is projected by only the one side of a plate 50, a flange 56 comes into contact with a supporting block 22 of a bottom jaw 13B of the contour reader 10. The point of a feeder 15 is actuated on the inner side of the frame to read the size C1. The heel of the feeler 15 is actuated on the outer side of the frame to read the size C2. The respective read values are determined by the conversion of an encoder and are deviated from the exact values by a system error. As a result, the two parameters are determined by the extremely simple method.
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公开(公告)号：JPH08338968A
公开(公告)日：1996-12-24
申请号：JP10052196
申请日：1996-04-22
Applicant: ESSILOR INT
Inventor： FURANSOWA ASUBA , TERII BODAARU , JIRE RU SOO
Abstract: PROBLEM TO BE SOLVED: To reduce the defect of the peripheral visual sense and increase the comfortableness of a user by specifying three regions of a long visual field region, a proximate visual field region, and an intermediate visual field region. SOLUTION: A long visual field region VL is provided with at least one angular sector having the total angle α of 145± or above, and the relation p(y).Lp1A/2 (y) . The relation 1A/2 .AVP/C mmis maintained at a point on the y-axis 18 mm below the lens fitting center, where 1A/2 is the width of a proximate visual field region VP, Av P is the relative diopter augmentation, and CVP is the maximum cylinder of a horizontal segment extended on the whole lens surface.
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公开(公告)号：JPH08244130A
公开(公告)日：1996-09-24
申请号：JP4017596
申请日：1996-02-27
Applicant: ESSILOR INT
Inventor： DOMINIKU BONBAROTSUTO , DANIERU JIYOSEFU ROGUNOO
Abstract: PROBLEM TO BE SOLVED: To obtain a uniform refractive index in a simple optical system by irradiating a crosslinkable mixed soln. of a photopolymerizable monomer according to refractive index distribution until a polymer having self-shape holdability is obtained, and swelling this polymer in a swelling compsn. containing a monomer forming a polymer having a different refractive index to uniformly polymerize the swelling compsn. dispersed in a matrix. SOLUTION: A crosslinkable liquid mixture of a photopolymerizable monomer is irradiated according to desired refractive index distribution while regulating intensity and/or irradiation time until a polymer having self-shape holdability is obtained. This polymer is swollen along with a polymn. initiator in a swelling compsn. containing a polymerizable monomer forming a polymer having a refractive index different from that of the obtained polymer of a fundamental matrix up to thermodynamic equilibrium. Next, the swelling compsn. dispersed in the matrix is uniformly polymerized so as to obtain a final article having a refractive index gradient. The mixture of the photopolymerizable fundamental monomer contains a monofunctional monomer and a polyfunctional crosslinking agent.
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公开(公告)号：JPH08230065A
公开(公告)日：1996-09-10
申请号：JP32263395
申请日：1995-12-12
Applicant: ESSILOR INT
Inventor： JIYAN FURANSOWA MAANIYU
Abstract: PROBLEM TO BE SOLVED: To provide a more economical method and apparatus for producing an optical lens from a polymerizable synthetic material. SOLUTION: A mold is assembled in order to produce an optical lens and filled with a molding material and at least the polymn. of the molding material is started. These three operations are performed within the same apparatus and the apparatus includes at least two jaws 12', 12" and these jaws surround the edges of two molding shells 14A, 14B in order to form a mold 13 and at least one of the jaws is movable. Adaptation includes the production of an ophthalmic lens.
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公开(公告)号：JPH08224743A
公开(公告)日：1996-09-03
申请号：JP32270795
申请日：1995-12-12
Applicant: ESSILOR INT
Inventor： JIYAN FURANSOWA MAANIYU
IPC: B29C39/26 , B29C35/02 , B29C39/02 , B29C39/24 , B29D11/00 , B29K101/10 , B29K105/32 , B29L11/00
Abstract: PROBLEM TO BE SOLVED: To provide a method for filling a mold capable of largely avoiding an optical flaw generated in a case filling the mold from the top part thereof by filling the mold from the bottom portion thereof. SOLUTION: A mold 10 for producing an optical lens is formed from two molding shells 11A, 11B arranged at edge parts and the annular closure member 12 provided around the molding shells and constituting a molding cavity 13 along the molding shells and a molding material 18 is introduced in the molding cavity 13 from the casting opening provided to the closure member 12 in order to fill the mold 10. The casting opening is provided to the lower part of the molding cavity 13. This mold filling method is adapted to the production of a spectacle lens.
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