Ophthalmic Lens Calculation System with Dynamic Module Activation

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Solution Overview

Problem

Current ophthalmic lens manufacturing processes face challenges due to lab-specific management entities and tools, requiring adaptation of lens designers and calculators, and the inability to recalculate manufacturing data during the process based on measured data, leading to potential inaccuracies.

Innovation Solution

A calculation system comprising independent and asynchronous calculation modules, a managing unit that receives input data, determines which modules to activate, and calculates output data through iterations, allowing for precise manufacturing process adjustments during the manufacturing process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a database containing ophthalmic labs data is used in the ophthalmic lens calculator, then manufacturing process data can be calculated for different labs, but some labs data may not be obtained or updated, resulting in incorrect calculated manufacturing process data

Engineering Contradiction:
Improveadaptability to different ophthalmic labsVSAvoidaccuracy of manufacturing process data
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system dynamically determines which calculation modules to activate based on real-time conditions rather than using static pre-configured database entries. This allows the system to adapt to different labs while ensuring data accuracy by only activating modules with verified, up-to-date parameters.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements feedback mechanisms where calculation results and measured data are used to update and validate the activation conditions of calculation modules. This ensures that manufacturing process data is recalculated using current, accurate information from each specific lab, resolving the issue of outdated database entries.

Inventive Principle:
Principle #23Feedback

2Loss of time

If manufacturing process data are calculated prior to the beginning of the manufacturing process, then the calculation can be completed in advance, but it is not possible to recalculate some of the manufacturing process data during the manufacturing process, resulting in a lack of precision

Engineering Contradiction:
Improvecalculation timeVSAvoidprecision of manufacturing process data
Core Design Contradiction:
Loss of timeVSManufacturing precision

Solution Approach 1:

The system transitions from static pre-calculated data to dynamic recalculation capabilities. Calculation modules can be activated at different stages of the manufacturing process based on measured data, allowing the system to maintain precision while managing calculation time efficiently through selective, on-demand recalculation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary calculations before manufacturing begins, but also maintains the capability to recalculate specific parameters during the process when measured data becomes available. This preliminary action combined with subsequent updates optimizes both time efficiency and precision.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If each lens designer has to be adapted to calculate manufacturing process data for different ophthalmic labs, then the system can accommodate multiple labs, but the device complexity increases

Engineering Contradiction:
Improvecompatibility with different labs and designersVSAvoidcomplexity of calculation system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The calculation system is segmented into independent, modular calculation modules, each handling specific manufacturing parameters. This modular architecture allows different labs and designers to use only the modules relevant to their needs, reducing individual system complexity while maintaining overall system versatility and adaptability.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2992393B1Calculation system for manufacturing an ophthalmic lens
Publication Date: 2019.09.11 ESSILOR INTERNATIONAL(COMPAGNIE GENERALE D OPTIQUE)
  • EP2992393B1 patent drawingFigure 1~2
  • EP2992393B1 patent drawingFigure 3
  • EP2992393B1 patent drawingFigure 4

AI summary

The invention proposes a calculation system (1) for manufacturing an ophthalmic lens, comprising: - a set of calculation modules (M1, M2, M3, M4) associated to partial calculation in relation with manufacturing process of said ophthalmic lens, - a managing unit (MU) configured to: -receive input data, -calculate output data through one or several iteration(s) of: - determining one or several calculation module(s) to be activated, - determining an order of activation of the one or several calculation module(s), - activating the determined one or several calculation module(s), in accordance with the determined order of activation, and - transmit an indication that the output data have been calculated.