Sports Glasses Optical Simulation via Afocal Lenses
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Solution Overview
Problem
The challenge lies in predicting the tolerability of sports glasses with large lens angles or strong shells for individual spectacle wearers, as existing methods fail to account for varying physiological threshold values, leading to asthenopic complaints and intolerance due to skewed lenses with significant bending.
Innovation Solution
A method involving the design of spectacle lenses with specific magnification and distortion calculations, followed by the use of afocal demonstration lenses to simulate optical effects, allowing for pre-examination of compatibility issues by mimicking the expected magnification and distortion of planned sports glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If lenses with strong deflection and large frame angle are used in sports glasses, then the aesthetic appearance and field of view are improved, but asthenopic complaints and intolerance increase due to distorted spatial perception
Solution Approach 1:
The patent applies preliminary action by calculating and determining the magnification and distortion characteristics of the spectacle lens design before manufacturing, and using afocal demonstration lenses to simulate these optical effects in advance. This allows the wearer to experience the visual impact of strong deflection lenses before committing to the final product, enabling informed decisions about tolerability while maintaining the desired aesthetic and functional properties.
2Measurement precision
If individual physiological threshold values are considered for each spectacle wearer, then compatibility prediction accuracy is improved, but examination complexity and time increase
Solution Approach 1:
The patent uses afocal demonstration lenses as simplified copies that replicate the magnification and distortion effects of the actual spectacle lens design. These demonstration lenses provide a manageable way to assess individual physiological responses without requiring complex measurement equipment or procedures, thus maintaining high prediction accuracy while controlling examination complexity.
3Manufacturing precision
If magnification and distortion are calculated for individual viewing directions, then optical accuracy is improved, but calculation and manufacturing time increase
Solution Approach 1:
The patent performs magnification and distortion calculations during the lens design phase before manufacturing, allowing optimization of the lens parameters to compensate for expected optical effects. This preliminary calculation enables the creation of lenses that maintain optical accuracy while streamlining the manufacturing process, as the compensation parameters are determined in advance rather than requiring post-manufacturing adjustments.
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 approach enables efficient prediction and coordination of optical properties, reducing faulty production and returns, optimizing lens production by better utilizing tolerance ranges for refraction correction and individual head shapes.
Implementation Method 1
determining a magnification and/or a distortion of the at least one spectacle lens for at least one viewing direction of the spectacle wearer
Data Source
Figure 1
Figure 2A~2B
Figure 2C~2D
AI summary
The present invention relates to a method, a system, and a set of glasses for examining the compatibility of glasses having a large frame lens angle, and/or having a strong contraction for the wearer of the glasses, wherein in one aspect the method comprises the following: configuring at least one spectacle lens of the glasses for the wearer of the glasses; determining a magnification and/or distortion of the at least one spectacle lens for at least one line of vision of the wearer of the glasses; selecting at least one afocal demonstration lens having a certain self-adjusting magnification from a series of afocal demonstration lenses, having at least partially different self-adjusting magnification as a function of the determined magnification and/or distortion of the at least one spectacle lens; and holding of the selected afocal demonstration lens in front of the respective eye of the wearer of the glasses in a demonstration position.