Spectacle Lens Demonstrator Using Segmented Light Modules
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Solution Overview
Problem
Customers face difficulty in selecting spectacle lenses that meet their vision correction needs and lifestyle requirements due to increased complexity in choosing eyewear, as ophthalmologists must consider various parameters including viewing habits and optical properties, making it challenging to recommend suitable lenses.
Innovation Solution
A demonstrational tool with a light source emitting visible, UV, and HEV light is used to expose spectacle lenses, allowing customers to see how optical properties change under different lighting conditions, including the demonstration of self-tinting and polarizing effects, to enhance vision and reduce glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple lighting conditions are demonstrated to customers, then the understanding of optical properties improves, but the device complexity increases
Solution Approach 1:
The demonstration apparatus is segmented into separate functional modules: a light source module emitting multiple wavelengths (visible, UV, HEV), a lens holder module for securing spectacle lenses, and a reflective surface module. This segmentation allows each component to be optimized independently while maintaining overall system functionality, resolving the contradiction between comprehensive demonstration capability and device complexity.
Solution Approach 2:
The light source is designed to emit multiple types of light (visible light, UV light, and HEV light) simultaneously, making it a multi-functional component that can demonstrate various optical properties including phototropism, polarization, and glare reduction in a single apparatus, thereby improving information delivery without proportionally increasing device complexity.
2Loss of information
If phototropism demonstration is enabled, then optical property understanding improves, but harmful light exposure increases
Solution Approach 1:
A reflective surface is introduced as an intermediary between the light source and the spectacle lens. This reflective surface allows UV and HEV light to reach the lens for phototropism demonstration while reflecting visible light toward the customer for safe observation, thereby enabling phototropism understanding while minimizing harmful light exposure to the customer's eyes.
Solution Approach 2:
The demonstration process is structured in sequential stages: first exposing the lens to UV/HEV light for phototropism activation, then observing the effect under visible light. This periodic action pattern allows the harmful exposure to be brief and controlled, followed by a safe observation period, resolving the contradiction between demonstrating phototropism and minimizing harmful exposure.
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 method enables customers to experience and understand the benefits of specific spectacle lenses in various lighting scenarios, improving the selection process by providing a tangible demonstration of optical properties, thereby enhancing the recommendation of suitable eyewear.
Implementation Method 1
absorbing a portion of the light emitted by the light source
Implementation Method 2
the light source is arranged to reflect the visible light off of the reflective surface
Implementation Method 3
the reflected light contains more of the visible light emitted by the light source being polarized in a first orientation than the visible light emitted by the light source in a second orientation being perpendicular to the first orientation
Data Source
AI summary
A method and an apparatus for demonstrating optical properties of a lens for spectacle glasses are disclosed. A demonstrational tool exposes a spectacle lens or a pair of spectacle glasses to polarized light to demonstrate how the removal of polarized, reflected light from a display reduces glare. Further, the demonstrational tool exposes a phototrope lens or a pair of spectacle glasses with phototrope lenses to UV- or HEV-light to demonstrate the reversible self-tinting of the phototrope lenses.