Semi-Finished Spectacle Lens Identification With Removable Sticker Codes
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Solution Overview
Problem
Existing methods for identifying semi-finished spectacle lenses require significant surface area for coding, which can damage the lens surface and limit early identification and individualization, making it difficult to track and correct manufacturing parameters.
Innovation Solution
Applying a detachable sticker with a unique code on the semi-finished spectacle lens that covers or partially covers an embossed code, allowing early identification and tracking, and serving as a reference for subsequent manufacturing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a detachable sticker with unique code is applied to the semi-finished spectacle lens, then identification and tracking efficiency is improved, but the lens surface area required for coding increases
Solution Approach 1:
A detachable sticker serves as an intermediary carrier for the unique identification code, separating the coding function from the lens surface itself. The sticker can be applied to the lens during manufacturing and removed later, providing efficient identification without permanently occupying lens surface area.
Solution Approach 2:
The identification system is segmented into a removable sticker component and the lens component. This allows the coding function to be isolated on a separate element that can be applied and removed independently, improving identification efficiency without committing permanent surface area on the lens.
2Ease of manufacture
If existing codes are covered by the detachable sticker, then mechanical surface treatment is reduced, but code readability may be affected
Solution Approach 1:
The detachable sticker acts as a temporary intermediary that covers existing embossed codes during manufacturing processes, eliminating the need for mechanical surface treatment to expose them. The sticker can be removed when code reading is required, restoring readability without requiring additional mechanical processing.
Solution Approach 2:
The sticker is applied in advance during manufacturing to protect and transport the lens with its embossed code intact. This preliminary covering action prevents the need for subsequent mechanical surface treatment, as the code remains preserved underneath the sticker throughout the manufacturing process.
3Adaptability or versatility
If detachable stickers are used for identification, then early individualization and data-driven quality control are enabled, but the complexity of the manufacturing process increases
Solution Approach 1:
The detachable sticker serves as a flexible intermediary that enables early individualization by carrying unique identification codes from the beginning of manufacturing. This allows each lens to be tracked and monitored individually through data-driven quality control systems without requiring complex permanent coding infrastructure.
Solution Approach 2:
The manufacturing process flexibility is enhanced by changing the identification medium from permanent embossing to removable stickers. This parameter change allows the same manufacturing line to handle individualized tracking of each lens while maintaining simplicity through the use of standard adhesive sticker application processes.
Data Source
AI summary
A method for producing a semi-finished spectacle lens and a semi-finished spectacle lens includes identifying the semi-finished spectacle lens by applying a removable sticker having a unique code to the semi-finished spectacle lens. The semi-finished spectacle lens has an embossed code that is engraved into the semi-finished spectacle lens. The sticker is applied to at least partially cover the embossed code. The sticker can be applied directly onto the semi-finished spectacle lens early in the manufacturing process, for example immediately after molding or injection molding. The sticker can also be applied to the semi-finished spectacle lens before further surface treatment is carried out.


