Eyeglass Lens Shaft Alignment with Simultaneous Full and Enlarged Image Display
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Solution Overview
Problem
Conventional shaft alignment devices for processing the peripheral edge of eyeglasses lenses face difficulties in accurately identifying and aligning hidden and printed marks, leading to potential misalignment issues.
Innovation Solution
A shaft alignment device and program that capture and display both entire and enlarged images of the eyeglasses lens, allowing for precise detection and alignment of hidden and printed marks by setting specific areas and adjusting the shaft alignment position based on the detected positions of these marks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only the entire captured image is displayed, then the overall lens structure is visible, but the mark positions (hidden marks and printed marks) cannot be clearly recognized
Solution Approach 1:
The display screen is segmented to show both the entire captured image and an enlarged image of a specific area containing the marks simultaneously. This allows operators to view the overall lens structure while also clearly recognizing the precise positions of hidden marks and printed marks without losing contextual information.
2Reliability
If the captured image is displayed at normal size, then the complete lens is visible, but misalignment between hidden marks and printed marks is difficult to detect
Solution Approach 1:
The system adds a dimensional transformation by displaying an enlarged view of the specific area containing the marks alongside the entire captured image. This dimensional change enables operators to easily verify alignment accuracy between hidden marks and printed marks while maintaining the ability to see the complete lens context.
Data Source
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AI summary
A shaft alignment device is used in a process of processing a peripheral edge of an eyeglasses lens. The shaft alignment device includes an imaging means that takes a captured image of a lens surface of the eyeglasses lens, an enlarged image acquisition means that acquires an enlarged image obtained by enlarging a specific area of the captured image, and a display control means that causes a display means to display the captured image taken by the imaging means and the enlarged image acquired by the enlarged image acquisition means on a same screen of the display means. According to the shaft alignment device, it is possible to set a shaft alignment position of the eyeglasses lens.