Optical Filter Modulating Visible Light for Visual Health
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Solution Overview
Problem
Current visual protection devices, such as sunglasses, primarily focus on shielding harmful solar radiation without considering the beneficial effects of natural light on visual quality and overall well-being, leading to inadequate visual stimulation and potential negative effects from uncontrolled light exposure.
Innovation Solution
An optical filter that modulates natural light by selectively transmitting specific wavelengths within the visible spectrum to stimulate the retina, mimicking the process of photosynthesis and promoting visual health through continuous 'light nourishment' while shielding harmful UV radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If dark lenses are used to shield solar radiation, then protection against UV rays is improved, but visual quality and visual process are worsened due to reduced light transmission and pupil dilation
Solution Approach 1:
The filter applies different transmission characteristics to different wavelength ranges: it blocks harmful UV wavelengths while selectively transmitting beneficial visible wavelengths (particularly blue-green range 480-530nm). This local differentiation of transmission quality resolves the contradiction by protecting against harmful radiation while maintaining visual quality through selective wavelength transmission.
Solution Approach 2:
The filter changes the spectral composition parameter of transmitted light rather than uniformly reducing all wavelengths. By specifically enhancing transmission in the 480-530nm range while blocking UV, it transforms the light quality to simultaneously achieve protection and visual stimulation.
2Object-affected harmful factors
If all natural light is blocked to protect from harmful rays, then protection effectiveness is improved, but biological benefits from natural light exposure are lost
Solution Approach 1:
The filter extracts and transmits only the beneficial wavelength components (480-530nm blue-green light and infrared) while removing harmful UV components. This extraction approach maintains visual system stimulation and biological benefits while eliminating harmful effects.
Solution Approach 2:
The filter converts the potentially harmful situation of uncontrolled light exposure into a beneficial one by selectively transmitting wavelengths that stimulate visual development and protect retinal cells, effectively turning light exposure into a therapeutic benefit rather than a hazard.
3Ease of manufacture
If uniform filtration is applied across all wavelengths, then manufacturing simplicity is maintained, but visual quality and contrast sensitivity are reduced
Solution Approach 1:
The filter employs local quality differentiation by applying specific absorption characteristics to different wavelength ranges using organic dyes and pigments. This allows precise control over spectral transmission in the 480-530nm range while maintaining manufacturing feasibility through established dyeing and coating techniques.
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
The filter enhances visual capabilities by improving contrast sensitivity, visual acuity, and overall visual quality, maintaining clear and defined vision without causing adverse effects, and is suitable for both healthy and pathological eyes.
Implementation Method 1
an optical filter which does not protect or block the light since it is harmful, rather it takes full advantage of the light offer, by selecting the most significant range of radiations to be transmitted to a user's eye
Implementation Method 2
the retina photoreceptors have the capability of absorbing different wavelengths
Implementation Method 3
sunglasses specific for every occasion... filters to implement a protection against UV rays
Data Source
AI summary
The present invention relates to an optical filter for modulating electromagnetic waves which make up a light radiation. configured in such a way as to allow the exclusive transmission of electromagnetic waves which have a wavelength comprised between 520 nm and 590 nm to implement a photobiomodulation treatment. The optical filter comprises a first support layer (1), made of polymeric material and comprising a vegetable pigment derived from lutein, and a second polarizing layer (2).