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1. 发明授权

US09671618B2 Method of determining optical parameters of an ophthalmic lens 有权
公开(公告)号：US09671618B2
公开(公告)日：2017-06-06
申请号：US14442945
申请日：2013-11-13
申请人： ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
发明人： Pascal Allione , Jean-Pierre Chauveau , Daniel Steigelman
IPC分类号： G02C7/02 , G02C7/06 , G01M11/02
CPC分类号： G02C7/028 , G01M11/02 , G01M11/025 , G02C7/027 , G02C7/061
摘要： Method for determining the values of a set of n optical parameters (P1, P2, . . . , Pn) of an ophthalmic lens, n being an integer greater than or equal to 1, the method comprising: an nominal ophthalmic lens data providing step, an ophthalmic lens providing step, an optical surface measuring step, a surface errors determining step during which a set of m surface error parameters (α1, α2, . . . , αm) is determined, m being an integer greater than or equal to 1, an optical parameter determining step during which each optical parameter of the set of optical parameters is determined by: P i = P i , 0 + [ ∑ j = 1 m ⁢ ⁢ ( ∂ P i ∂ α j ) 0 × Δα j ] + A i with Pi the value of the ith optical parameter of the manufactured optical lens, Pi,0 the value of the ith optical parameter of the nominal optical lens, ( ∂ P i ∂ α j ) 0 the value of the derivative of Pi with respect to the jth surface error parameter αj on the nominal surface and Δαj the value of the jth surface error parameter, and Ai a combination of terms of order greater or equal to 2 for each Pi.

2. 发明授权

US10471566B2 Method for determining location of a lens machining tool in a turning machine configured for machining ophtalmic lenses 有权
公开(公告)号：US10471566B2
公开(公告)日：2019-11-12
申请号：US15502712
申请日：2015-08-07
申请人： ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
发明人： Xavier Bultez , Jerome Moine , Guillaume Bolteau , Jean-Pierre Chauveau
IPC分类号： B24B49/03 , B23Q17/22 , G05B19/402 , B24B13/06 , B24B13/005 , B24B49/00
摘要： Disclosed is a method for determining location of a lens machining tool (24) having an offset location according to a first direction (Y) smaller than a first predetermined threshold, including the steps of manufacturing a calibration piece (10) according to a predetermined theoretical geometry by using the lens machining tool for providing a at least partially annular groove in a main surface of the calibration piece, the at least partially annular groove being configured to form at least one sharp edge defining a slope discontinuity on the main surface; measuring a distance between the at least one sharp edge and a turning center of the calibration piece for providing data of geometrical characteristics of the calibration piece; and deducing from the measured data a location of the lens machining tool according to a second direction (X) distinct from the first direction.

3. 发明申请

US20150286069A1 Method Of Determining Optical Parameters Of An Ophthalmic Lens 有权
标题翻译：确定眼科镜片的光学参数的方法
公开(公告)号：US20150286069A1
公开(公告)日：2015-10-08
申请号：US14442945
申请日：2013-11-13
申请人： ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
发明人： Pascal Allione , Jean-Pierre Chauveau , Daniel Steigelman
IPC分类号： G02C7/02 , G02C7/06 , G01M11/02
CPC分类号： G02C7/028 , G01M11/02 , G01M11/025 , G02C7/027 , G02C7/061
摘要： Method for determining the values of a set of n optical parameters (P1, P2, . . . , Pn) of an ophthalmic lens, n being an integer greater than or equal to 1, the method comprising: an nominal ophthalmic lens data providing step, an ophthalmic lens providing step, an optical surface measuring step, a surface errors determining step during which a set of m surface error parameters (α1, α2, . . . , αm) is determined, m being an integer greater than or equal to 1, an optical parameter determining step during which each optical parameter of the set of optical parameters is determined by: P i = P i , 0 + [ ∑ j = 1 m   ( ∂ P i ∂ α j ) 0 × Δα j ] + A i with Pi the value of the ith optical parameter of the manufactured optical lens, Pi,0 the value of the ith optical parameter of the nominal optical lens, ( ∂ P i ∂ α j ) 0 the value of the derivative of Pi with respect to the jth surface error parameter αj on the nominal surface and Δαj the value of the jth surface error parameter, and Ai a combination of terms of order greater or equal to 2 for each P1.
摘要翻译：用于确定眼科镜片的一组n个光学参数（P1，P2，...，Pn）的值的方法，n是大于或等于1的整数，所述方法包括：标称眼科镜片数据提供步骤，眼镜透镜提供步骤，光学表面测量步骤，确定一组m个表面误差参数（α1，α2，...，αm）的表面误差确定步骤，m是大于或等于 1，光学参数确定步骤，在该光学参数确定步骤中，通过以下方式确定该组光学参数的每个光学参数：P i = P i，0 + [Σj = 1 m÷（∂P i∂αj）0×＆Dgr; αj] + A i，其中Pi是制造的光学透镜的第i个光学参数的值，Pi，0是标称光学透镜的第i个光学参数的值，（∂P i∂αj）0的值 Pi相对于标称表面上的第j个表面误差参数αj的导数，＆Dgr;αj第j个表面的值误差参数，Ai为每个P1大于或等于2的项的组合。

4. 发明授权

US10401828B2 Method for deducing geometrical defects of an optical article turning machine 有权
公开(公告)号：US10401828B2
公开(公告)日：2019-09-03
申请号：US15502921
申请日：2015-08-07
申请人： ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
发明人： Xavier Bultez , Jerome Moine , Guillaume Bolteau , Jean-Pierre Chauveau
IPC分类号： G05B19/404 , G01M11/02 , G02C7/02 , G01M99/00
摘要： Disclosed is a method for deducing geometrical defects of an optical article turning machine, including a defect value deducing step, during which at least one geometrical defect value is deduced based at least on an indicative information of an optical and/or geometrical data related to an optical and/or geometrical characteristic of a checking piece (10).

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