Eyeglass Manufacturing Process Parameter Determination

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Solution Overview

Problem

The interaction between eyeglass frames and lenses is often predetermined, limiting wearer choice and resulting in suboptimal fit and functionality, as the final eyeglasses are designed based on the selected frame rather than the wearer's specific needs.

Innovation Solution

A method and system for determining process parameters for manufacturing eyeglasses by acquiring lens and frame data, identifying modification parameters, and using additive manufacturing to produce customized lenses and frames that improve interaction, allowing wearers to select modifications for better fit and functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the final eyeglasses are designed based on the selected frame, then the manufacturing process is simplified and production efficiency is improved, but the wearer's choice and customization options are limited

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidwearer choice
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary analysis of the interaction between the selected frame and required lenses before manufacturing, identifying potential modification parameters. This allows customization options to be prepared in advance without delaying the manufacturing process, as the analysis is automated and conducted parallel to production planning.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The design process transitions from a static, frame-determined approach to a dynamic system where modification parameters can be adjusted based on wearer preferences. The system allows iterative selection of modifications (such as lens edge thickness, frame rim thickness, beveled edge shapes) that can be updated before manufacturing begins, making the process adaptable while maintaining efficiency.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If modification parameters are identified and customization options are provided, then wearer choice and fit improvement are enhanced, but the device complexity and process steps increase

Engineering Contradiction:
Improvecustomization capabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system automatically analyzes the interaction between frame and lens, identifies potential modification parameters, and generates customization options without requiring complex manual intervention. The automated analysis engine evaluates mechanical interference, contact points, and field of view issues, presenting ready-to-select modification options to the user, thereby reducing the perceived complexity despite the sophisticated analysis performed.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The customization process is divided into distinct, manageable segments: frame selection, lens specification, interaction analysis, modification parameter identification, and final selection. Each segment handles a specific aspect of the customization, breaking down the overall complexity into discrete, easily navigable steps for the user while maintaining comprehensive analysis capabilities.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If additive manufacturing is used to produce customized lenses and frames, then manufacturing flexibility and customization are improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvemanufacturing flexibilityVSAvoiddimensional accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system determines specific process parameters for additive manufacturing based on the selected modification parameters. By optimizing printing parameters (such as layer thickness, infill density, support structures, and material properties) according to the specific customization requirements, the system achieves the necessary dimensional accuracy for each unique eyeglass configuration while maintaining the flexibility of additive manufacturing.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12085785B2Method for determining process parameters for manufacturing at least part of an eyeglass and eyeglass managing system
Publication Date: 2024.09.10 ESSILOR INTERNATIONAL(COMPAGNIE GENERALE D OPTIQUE)
  • US12085785B2 patent drawing

AI summary

An eyeglass managing system determines process parameters for manufacturing at least part of an eyeglass including a lens and a frame. In this eyeglass managing system, an electronic system includes: —a receiving unit adapted to acquire lens data describing an initial lens and frame data describing an initial frame; —a processing unit adapted to identify, based on the lens data and on the frame data, modification parameters deriving from the interaction between the initial lens and the initial frame; and—a transmitting unit adapted to transmit a list of proposed modifications based on the identified modification parameters. The receiving unit is further adapted to acquire a response to at least one proposed modification; the processing unit is further adapted to determine, based on the acquired response, process parameters of an additive manufacturing process for manufacturing the lens or the frame.