Bevel Formation Data Setting for Eyeglass Lens Processing

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Solution Overview

Problem

Existing eyeglasses lens processing systems require specialized knowledge and skills for operators to set bevel formation data, making it difficult for unfamiliar operators to accurately set bevel formation parameters.

Innovation Solution

A bevel formation data setting device and program that acquires rim information, displays setting screens with identifiable parameters based on rim type, and automatically determines necessary parameters, allowing operators to easily set bevel formation data without extensive knowledge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the setting method requires operators to input numerical values for bevel formation parameters, then the precision of bevel formation can be controlled, but the ease of operation deteriorates because specialized knowledge and high skill are required

Engineering Contradiction:
Improvebevel formation precisionVSAvoidoperator skill requirement
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system automatically determines and sets bevel formation parameters by acquiring lens shape data and rim information, then calculating appropriate front bevel and rear bevel heights without requiring operator input. The device serves itself by using its own measurement capabilities to generate processing parameters, eliminating the need for operator expertise in parameter selection.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual process of operator judgment and numerical input is replaced by an automated calculation system. The control unit computes bevel parameters based on acquired lens and rim data, substituting the mechanical/cognitive process of skilled operators with an automated computational system that eliminates skill requirements while maintaining precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If individual setting of front bevel and rear bevel heights is implemented, then the manufacturing precision of bevel formation is improved, but the device complexity increases due to multiple setting parameters

Engineering Contradiction:
Improvebevel height controlVSAvoidsetting parameter complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system automatically determines both front bevel height and rear bevel height through computational processing of lens shape data and rim information. Rather than requiring operators to individually set each parameter, the device self-generates all necessary bevel formation parameters through automated calculation, reducing the perceived complexity for users.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system transforms the complexity of multiple bevel parameters into a streamlined process by changing how parameters are determined. Instead of manual input of multiple independent parameters, the system uses automated parameter generation based on lens and rim characteristics, effectively managing complexity through computational methods.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4098398B1Bevel formation data setting device, eyeglasses lens processing apparatus, and bevel formation data setting program
Publication Date: 2024.11.06 NIDEK CO LTD
  • EP4098398B1 patent drawingFigure 1
  • EP4098398B1 patent drawingFigure 2
  • EP4098398B1 patent drawingFigure 3

AI summary

A bevel formation data setting device sets a bevel for holding an eyeglasses lens on a rim of an eyeglasses frame. The bevel formation data setting device includes a rim information acquisition means for acquiring rim information of the eyeglasses frame, and a display control means for controlling display of a display. The display control means causes the display to display a setting screen for setting bevel formation data based on the acquired rim information. The setting screen corresponds to the rim.