Automated Clamping Ring Handling for Spectacle Lens Coating
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Solution Overview
Problem
Existing methods for coating spectacle lenses involve batch operations that require a large number of lenses to be accumulated before processing, leading to long waiting times for customers due to inefficient handling and processing procedures.
Innovation Solution
A coating installation with an automated handling system for clamping rings and spectacle lenses, featuring multiple coating apparatuses, intermediate storage, and a heating device, allowing for fully automated and efficient processing and coating of lenses in small groups, with a focus on rapid passage through the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If batch operation with large number of lenses is used, then coating capacity is improved, but waiting time increases
Solution Approach 1:
The system divides the batch processing into smaller sub-batches or groups that can be processed in parallel across multiple coating apparatuses. Instead of waiting for a large batch to accumulate before starting any coating, the system segments the workflow so that smaller groups can be coated simultaneously, reducing the overall waiting time while maintaining high throughput capacity.
Solution Approach 2:
The patent introduces a time dimension to the processing by implementing overlapping operations where preparation, coating, and post-processing steps occur simultaneously for different lens groups. Multiple coating apparatuses operate in parallel, and the transfer system coordinates their schedules to maximize utilization, effectively adding temporal parallelism to the processing workflow.
2Productivity
If automated handling system is implemented, then processing efficiency is improved, but device complexity increases
Solution Approach 1:
The transfer system is designed as a multi-functional device that can perform multiple operations: transferring lenses between apparatuses, positioning lenses precisely, coordinating timing between different coating stations, and managing the flow of multiple lens groups simultaneously. This universal transfer apparatus reduces the need for separate dedicated mechanisms for each function, thereby limiting the increase in overall system complexity.
Solution Approach 2:
The patent introduces a centralized control system that acts as an intermediary between the multiple coating apparatuses and the transfer mechanism. This control system coordinates their operations, manages scheduling, and handles the complexity of synchronization, allowing the individual apparatuses to remain relatively simple while achieving high overall efficiency through coordinated operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables the shortest possible processing time for spectacle lenses by allowing fully automated handling and transfer between processing and coating stages, reducing waiting times and improving efficiency in lens production.
Implementation Method 1
a heating device for heating spectacle lenses, in particular for drying and/or curing a coating applied to the spectacle lenses
Data Source
AI summary
A coating installation for coating a spectacle lens is proposed. Preferably, the coating installation comprises a handling system for the automated handling of clamping rings for temporarily holding the spectacle lens during the application of the coating. In particular, the handling system is designed for automated transfer of spectacle lenses between different apparatuses of the coating installation. Furthermore, a clamping ring for clamping a spectacle lens at the edge, a magazine for storing clamping rings, a processing installation for processing spectacle lenses and several methods for processing and/or coating spectacle lenses are proposed.


