Light Converter Apparatus for Li-Fi Wavelength Conversion
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Solution Overview
Problem
Existing Li-Fi technologies face limitations in bandwidth availability and user comfort due to line-of-sight requirements and visible light data transmission, which can cause distractions in dark environments, and struggle with data transfer through obstacles.
Innovation Solution
A light converter apparatus that converts light beams from a visible spectrum to an invisible spectrum, allowing Li-Fi devices to communicate without line-of-sight and enabling data transfer through obstacles while maintaining data integrity, using optoelectronic or optical light converting circuits to encode and decode data in light beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If Li-Fi devices use visible light to transmit data, then data transmission speed is improved, but user comfort deteriorates due to distraction or discomfort in dark areas
Solution Approach 1:
The patent changes the wavelength parameter of the light used for data transmission from visible spectrum to infrared spectrum. This allows the light to be invisible to human eyes, eliminating distraction or discomfort while maintaining high-speed data transmission capabilities of Li-Fi technology.
Solution Approach 2:
The patent uses invisible infrared light to copy the data transmission function of visible light, achieving the same high-speed communication capability without the harmful effect of visible light causing user distraction in dark environments.
2Reliability
If Li-Fi devices require line-of-sight for data transmission, then data transmission reliability is improved, but adaptability deteriorates due to inability to communicate through obstacles
Solution Approach 1:
The patent changes the wavelength parameter from visible light to infrared light, which has different propagation characteristics. Infrared light can penetrate or diffract around obstacles more effectively than visible light, enabling communication in non-line-of-sight conditions while maintaining data transmission reliability.
Solution Approach 2:
The patent uses invisible infrared light to replicate the data transmission function of visible light, achieving both reliable communication and improved adaptability to various environmental conditions including dark areas and obstructed paths.
3Productivity
If Li-Fi devices operate in dark areas with visible light, then bandwidth availability is improved, but user comfort deteriorates due to visibility of light in dark environments
Solution Approach 1:
The patent changes the light wavelength from visible to infrared spectrum, making the transmission medium invisible to human eyes. This allows full utilization of bandwidth for high-speed communication in dark areas without causing user discomfort from visible light.
Solution Approach 2:
The patent uses invisible infrared light to copy the high-bandwidth communication capability of visible light, achieving maximum productivity without the harmful effect of visible light being perceived by users in dark environments.
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
Enables high-speed, bidirectional communication between Li-Fi devices across different wavelength spectra, enhancing bandwidth availability and user comfort by allowing data transfer in dark environments and through obstacles, thus providing flexible and efficient media content delivery.
Implementation Method 1
The light converting circuit can convert a first wavelength of the light beam to a second wavelength
Data Source
AI summary
A light converter apparatus can receive a first light beam originated from a first Li-Fi device with a first wavelength. The first light beam may have data encoded therein. The light converter apparatus can receive the first light beam and convert the first wavelength to a second wavelength, and transmit a second light beam with the second wavelength to a second Li-Fi device.