Optical Product Light Protection Evaluation Method
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Solution Overview
Problem
Current methods for evaluating light protection levels of optical products, such as lenses, are inadequate as they primarily focus on short-term or long-term protection in isolation, failing to account for the dynamic and varied light environments encountered by users, making it difficult to provide a comprehensive assessment that reflects real-world usage.
Innovation Solution
A method that determines both short-term and long-term light protection scores for optical products, considering specific light environments and attributes like luminous transmittance, polarization efficiency, blue-violet radiation filtering, and ultraviolet protection, and combines these with vision experience scores to provide a holistic light protection level evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only short-term or long-term protection is evaluated in isolation, then the evaluation process is simple, but the comprehensiveness of light protection assessment deteriorates
Solution Approach 1:
The evaluation method segments light protection assessment into distinct dimensions: short-term protection (visual comfort, luminous transmittance) and long-term protection (eye health, UV/blue-violet radiation). Each dimension is evaluated separately with specific attributes and weightings, then integrated to provide a comprehensive overall assessment. This segmentation allows thorough evaluation without overwhelming complexity.
Solution Approach 2:
The patent introduces multiple evaluation dimensions beyond traditional single-metric assessment. It adds temporal dimension (short-term vs long-term), spectral dimension (different wavelength ranges), and contextual dimension (light environments). This multi-dimensional approach comprehensively captures light protection performance while maintaining structured evaluation through defined attributes and weightings for each dimension.
2Measurement precision
If traditional evaluation methods are used, then the evaluation is quick and simple, but the relevance to real-world usage deteriorates
Solution Approach 1:
The patent establishes predetermined evaluation frameworks with predefined attributes, weightings, and light environment categories before actual assessment. These preliminary structures (short-term attributes, long-term attributes, their weightings) are prepared in advance, allowing rapid application to different optical products without time-consuming customization. This enables comprehensive real-world relevance assessment while maintaining evaluation efficiency.
Solution Approach 2:
The evaluation method incorporates multiple parameters including luminous transmittance, polarization efficiency, blue-violet radiation filtering, and ultraviolet protection. These parameters are measured and weighted according to their relevance to specific light environments. By changing and weighting parameters based on real-world usage conditions rather than using a single fixed metric, the assessment achieves high relevance to actual user experiences.
3Adaptability or versatility
If multiple light environments and attributes are considered, then the evaluation becomes more comprehensive, but the complexity of selection and calculation increases
Solution Approach 1:
The patent creates a universal evaluation framework that functions across multiple light environments (indoor, outdoor, screen viewing, transitions) and product types. The same structured approach with defined attributes, weightings, and calculation methods applies universally to all optical products and lighting conditions. This multi-functionality achieves high adaptability while maintaining consistent, manageable complexity through standardized procedures.
Solution Approach 2:
The evaluation method applies local quality by assigning different weightings to attributes based on specific light environments. For example, luminous transmittance may be weighted higher for outdoor environments while blue-violet radiation filtering receives higher weighting for screen viewing. This localized optimization within a universal framework allows the system to adapt to different conditions without requiring completely separate evaluation systems for each environment, balancing versatility with manageable complexity.
Data Source
AI summary
The invention provides a method for evaluating at least one light protection level of at least one optical product intended to face an eye of a user, the method comprising the following steps: —determining at least one short-term light protection score representative of at least one short-term light protection attribute, —determining at least one long-term light protection score representative of at least one long-term light protection attribute, evaluating at least one light protection level of at least one optical product based on said at least one short-term and at least one long-term protection scores. The invention also provides an optical product comprising a frame, at least one optical system product attached to said frame and intended to face an eye of a user, a data collecting device and a controller configured to perform said evaluating method.