Eyeglass Frame Rim Shape Acquisition via Register Lookup
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Solution Overview
Problem
The existing methods for acquiring the shape of eyeglass frame rims are time-consuming, particularly when multiple sections need to be read, which hampers efficiency in lens mounting and appearance optimization.
Innovation Solution
A method that involves reading a register associated with eyeglass frame models to acquire geometrical characteristics of the rim sections, allowing for quick determination of bevel engagement and positioning, thereby reducing the need for manual tracing and increasing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the optician manually feels and traces the shape of multiple sections of the bezel, then the accuracy of lens engagement is improved, but the time required for the operation increases significantly
Solution Approach 1:
The patent applies preliminary action by pre-acquiring and storing the geometrical characteristics of bezel sections for various frame models in a register before the actual lens mounting process. When a frame is selected, the stored data is retrieved and used directly, eliminating the need for manual feeling and tracing of each section during the time-critical mounting operation.
Solution Approach 2:
The patent uses copying by creating digital replicas of the bezel section geometries from physical frames. These digital copies are stored in the register and can be repeatedly accessed and used for multiple lenses and frames without requiring repeated physical measurement, thus saving time while maintaining accuracy.
2Manufacturing precision
If the optician reads multiple sections of the bezel to account for curvature, then the positioning accuracy is improved, but the complexity of the operation increases
Solution Approach 1:
The patent merges the acquisition of multiple geometrical characteristics (coordinates of multiple points, section shapes, curvature information) into a single integrated data structure stored in the register. This consolidation allows all necessary positioning information to be retrieved and processed together, simplifying the operation while maintaining comprehensive accuracy.
3Shape
If the optician manually determines the position of the bottom of the bezel relative to frame edges, then the appearance quality is improved, but the productivity decreases
Solution Approach 1:
The patent implements self-service by enabling the system to automatically determine optimal lens positions based on stored bezel geometry data and predefined appearance criteria. The system autonomously calculates positioning parameters without requiring manual intervention, thus maintaining high appearance quality while significantly improving productivity.
Data Source
AI summary
The method includes acquiring at least one geometrical characteristic of the section, which includes: a step of reading from a register (201) in which each entry is associated with an eyeglass frame model or category of models and includes at least one geometrical characteristic of at least one section of a rim of frames of the model or the category of models of frame, with a search for an entry corresponding to the model or to the category of eyeglass frame models to which the selected eyeglass frame belongs; and a step of reading the at least one geometrical characteristic from the corresponding entry, if a corresponding entry is found in the register.