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Method for calculating a system, for example an optical system

A computing system and optical system technology, applied in optics, computing, optical components, etc., can solve problems such as limiting optical systems, achieve the effects of less time-consuming, simplified optimization problem indicators, and less complicated optimization methods

Inactive Publication Date: 2012-01-11
ESSILOR INT CIE GEN DOPTIQUE
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  • Application Information

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Problems solved by technology

Thus, the "classical" approach limits the potential optical systems that can meet the lens wearer's needs

Method used

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  • Method for calculating a system, for example an optical system
  • Method for calculating a system, for example an optical system
  • Method for calculating a system, for example an optical system

Examples

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Embodiment Construction

[0105] refer to Figure 1a , the method for calculating an optical system (OS) by optimization according to the present invention will now be described.

[0106] The method comprises providing step i, wherein a set of optical system parameters (OSP) is provided to define a starting optical system (SOS). Set each optical system parameter (OSP) as a starting value.

[0107] The method further comprises an index definition step ii, wherein a plurality of indexes (C 1 ,...,C m ). Then, in indicator association step iii, at least one value function (CF k ) is associated with each indicator (C k ). Therefore, consider a set of m indicators (C 1 ,...,C m ), associated with m value functions (CF 1 ,...,CF m ).

[0108] The method further comprises a global cost function definition step iv, wherein by adding at least one cost function (CF k ) is associated with each global value function (GCF p ) to define multiple global value functions (GCF 1 ,...,GCF ND ). Every globa...

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Abstract

1. A method for calculating a system (S) by optimization, the method comprising the steps of: i. providing a set of system parameters (SP) so as to define a starting system (SS), each system parameter (SP) being set up at a starting value; ii. defining a plurality of criteria (C k ); iii. associating for each criterion (C k ) a cost function (CF k ); iv. defining a plurality of global cost functions (GCF 1 , . . . , GCF ND ) by associating to each global cost function (GCF p ) at least one cost function (CF k ); v. defining a vector of variable parameters (X p ) associated to each global cost function (GCF p ) by selecting for each vector of variable parameters (X p ) at least one system parameter (SP); vi. optimizing the plurality of global cost functions (GCF 1 ,. . . , GCF ND ) by modifying the values of the system parameters of the vectors of variable parameters (X 1 ,. . . , X ND ) so as to obtain an intermediate system (IS); vii) repeating step vi) until an equilibrium is reached so as to obtain a system (S).

Description

technical field [0001] The invention relates to a method for calculating a system, such as an optical system, by optimization. The invention also relates to methods of manufacturing systems, such as optical systems, computer program products and computer readable media. Background technique [0002] Optimization methods for system calculations such as optical systems are known from the state of the art. However, the number of metrics currently considered is limited and cannot satisfy the needs of all system designers. In the field of optical systems, the applicant's French patent FR 9812109 describes an example of a "classical" method for determining optimal parameters of an optical system in particular from astigmatism and power indices. [0003] Also, in the field of ophthalmic optics, known "classical" methods are often investigated so that a selected set of indicators can reach or approach target values. The target value is predetermined by an optical system designer....

Claims

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Application Information

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IPC IPC(8): G06F17/50G02C7/02
CPCG06F17/50G02C7/028G02C7/02G06F30/00G06F2111/10
Inventor H·德罗西F·穆拉多雷
Owner ESSILOR INT CIE GEN DOPTIQUE
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