Yellow Pigment LED Filter for Short-Wavelength Eye Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The intensive use of LED-type displays poses a risk to human eye health due to the emission of short wavelengths, which existing technologies have not effectively addressed, particularly in the context of daily use and existing products on the market.
Innovation Solution
A blocking element with a yellow pigment substrate that selectively absorbs short wavelengths between 380 nm and 500 nm, integrated into LED lighting devices or portable electronic devices, to reduce the harmful effects on the retina and improve visual comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If LED-type displays are used for intensive daily use, then productivity and accessibility to information are improved, but harmful short wavelength emissions damage retinal cells and compromise eye health
Solution Approach 1:
A yellow filter substrate is introduced as an intermediary element between the LED light source and the human eye. This filter selectively absorbs harmful short wavelength emissions (380-500 nm) while allowing beneficial visible light to pass through, thereby mediating the interaction between LED displays and retinal cells to eliminate damage while preserving functionality
Solution Approach 2:
The invention utilizes yellow coloration in the filter substrate to achieve selective wavelength absorption. The yellow pigment specifically targets and absorbs short wavelength blue light (380-500 nm) emissions from LEDs, transforming the harmful portion of the spectrum while maintaining visibility and usability of the display
2Reliability
If yellow filters are applied to block short wavelengths, then eye health and cell viability are improved, but visual comfort and perception may be affected
Solution Approach 1:
The filter is designed to selectively affect only specific wavelength ranges (380-500 nm) while leaving other portions of the visible spectrum unchanged. This localized filtering approach protects against harmful blue light while preserving natural color perception and visual comfort for the remainder of the visible light spectrum
Solution Approach 2:
The filter substrate is engineered with specific optical parameters including yellow coloration and controlled optical density to achieve optimal balance between protection and visual comfort. By carefully adjusting these parameters, the filter blocks harmful wavelengths while maintaining acceptable visual perception and comfort for users
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 solution significantly increases cell viability, reduces DNA damage, and decreases apoptosis in human retinal pigment epithelial cells exposed to LED light, while also improving visual comfort and reducing eyestrain.
Implementation Method 1
A blocking element with a yellow pigment substrate that selectively absorbs short wavelengths between 380 nm and 500 nm
Data Source
Figure 1
Figure 2A~2B
Figure 2C
AI summary
Method, product and blocking element of short wavelengths in LED-type light sources consisting of a substrate with a pigment distributed on its surface and, in that said pigment has an optical density such that it allows the selective absorption of short wavelengths between 380 nm and 500 nm in a range between 1 and 99%.