Lens Design Acceptance Testing for Optical Aberration Sensitivity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for determining a user's subjective sensitivity to optical aberrations in ophthalmic lenses are flawed and do not provide reliable, consistent results due to contextual disturbances, failing to accurately assess the wearer's appreciation of lens designs.
Innovation Solution
A method involving a gradation test to subjectively evaluate a user's sensitivity to optical aberrations using a notation table, where users grade simulated images with varying aberrations through real optics, and a computer program to determine the most appropriate lens design based on the user's perceived quality and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current methods are used to determine user sensitivity to optical aberrations, then the evaluation process can be performed, but the results are unreliable and inconsistent due to contextual disturbances
Solution Approach 1:
The patent uses simulated images that replicate real optical errors and aberrations to create a controlled test environment. Instead of testing with actual lenses in complex real-world conditions, the invention creates copy representations of optical errors that can be systematically evaluated under standardized viewing conditions, thereby improving reliability while simplifying the evaluation process
Solution Approach 2:
The invention systematically varies parameters such as optical aberration levels, viewing distances, and image types in the simulated images to create a controlled gradient of test conditions. This allows for consistent measurement of user sensitivity across different parameters while maintaining standardized testing protocols that eliminate contextual disturbances
2Measurement precision
If subjective evaluation methods are used to assess wearer appreciation, then user comfort can be evaluated, but the results fluctuate significantly depending on context and situation
Solution Approach 1:
The patent establishes standardized viewing conditions that create an equipotential testing environment where all evaluations occur under identical contextual parameters. By controlling factors such as viewing distance, illumination, and image presentation, the invention eliminates contextual variations that cause fluctuation in subjective measurements, thereby improving precision without significantly complicating the evaluation process
Solution Approach 2:
The simulated images serve as an intermediary medium between the actual lens design and the user's subjective perception. This intermediary allows for controlled presentation of optical errors in a standardized format, enabling precise measurement of sensitivity while keeping the evaluation process simple and systematic
3Adaptability or versatility
If multiple lens designs are evaluated to find the most appropriate design, then user comfort optimization is achieved, but the evaluation time and complexity increase
Solution Approach 1:
The patent performs preliminary evaluation of multiple lens designs using simulated images that represent various optical error conditions. By pre-characterizing lens designs through systematic simulation testing before actual wearer evaluation, the invention reduces the time required for final selection while maintaining comprehensive adaptability across different lens design options
Solution Approach 2:
The evaluation process is segmented into distinct phases: first evaluating multiple lens designs through simulated image analysis, then using these preliminary results to guide final selection. This segmentation allows comprehensive comparison of adaptability across designs while reducing overall evaluation time by eliminating redundant testing
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
Method for determining the level of acceptance of a user of a lens design, the method comprising: - a notation table receiving step S6 during which a notation table of the user is received, the notation table corresponding to a set of subjective values representing the sensitivity of the user to a set of optical aberrations; - a notation table associating step S10 during which the notation table of the user is associated to a lens design based on the set of optical aberrations; and - a level of acceptance determining step S12 during which the level of acceptance of the user for the lens design is determined based on the association of the notation table of the user and the lens design.