Eyeglass Lens Design Using Distortion Sensitivity Testing
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Solution Overview
Problem
Existing eyeglass lens design methods fail to adequately account for individual wearers' sensitivity to visual distortion, leading to suboptimal optical performance and comfort.
Innovation Solution
A method involving distortion sensitivity testing using a head-mounted display to evaluate a wearer's sensitivity to visual distortion, followed by designing eyeglass lenses with targeted aberration and power distributions based on this sensitivity, utilizing an eyeglass lens ordering and order receiving system to ensure personalized optical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional eyeglass lens design methods are used, then the design process requires multiple sequential steps (frame selection, prescription input, lens type selection, price confirmation), but the overall ordering time and customer effort are excessive
Solution Approach 1:
The patent merges multiple sequential ordering steps (frame selection, prescription input, lens type selection, price confirmation) into a single automated image recognition process. The imaging device captures an image containing both the frame and prescription information, and the system processes all this information simultaneously to generate the lens order, eliminating the need for customers to go through multiple separate steps.
Solution Approach 2:
The system enables self-service ordering by automatically extracting frame and prescription information from images provided by customers. The imaging device and server work together to autonomously process the ordering without requiring customer interaction with multiple separate interfaces or manual input of prescription details, making the process convenient and self-sufficient.
2Productivity
If manual information input methods are used, then data accuracy can be maintained, but the ordering process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent replaces manual mechanical input methods with automated optical character recognition (OCR) and image recognition technology. The system uses imaging devices to capture prescription details and frame information, then automatically processes these images through recognition algorithms to extract data, substituting human manual typing and data entry with automated digital processing.
Solution Approach 2:
The system creates digital copies of prescription information by capturing images of prescription documents or displays. Instead of requiring manual transcription, the imaging device makes a visual copy of the prescription data, which is then automatically processed and converted into digital format for lens manufacturing, preserving accuracy while eliminating manual labor.
3Ease of operation
If multiple separate devices are used for frame selection and prescription input, then each function can be optimized, but the overall system complexity and customer convenience deteriorate
Solution Approach 1:
The imaging device serves multiple functions simultaneously: it captures frame images, extracts prescription information, identifies frame specifications, and initiates the ordering process. This multi-functional device replaces the need for separate devices for frame selection and prescription input, consolidating multiple functions into a single universal tool that improves customer convenience.
Solution Approach 2:
The system implements a nested structure where the imaging device is integrated within the lens manufacturing system. The imaging functionality is embedded as part of the larger ordering system, allowing the image capture and recognition features to be nested within the overall lens production workflow, thereby simplifying the customer interface while maintaining system capabilities.
Data Source
Figure 1(A)~1(B)
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AI summary
A method for designing an eyeglass lens includes: displaying an image upon a display device while maintaining a positional relationship of a face of a subject and the display device; acquiring information in which visual sensitivity of the subject is evaluated on the basis of an impression received by the subject who has viewed the image; and designing an eyeglass lens on the basis of the information in which the sensitivity is evaluated.