Alternating Light Source for Gamma Stimulation With High CRI
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Solution Overview
Problem
Current non-invasive acousto-optic stimulus signals for treating Alzheimer's disease are monotonous and can cause fatigue or discomfort, making long-term application difficult due to their boring nature.
Innovation Solution
A light source device that alternately emits first and second light beams with a fixed frequency and high color rendering index, providing visual stimulation with varying light intensities or spectra to induce gamma brain waves and alleviate cognitive decline.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If acousto-optic stimulus signal is used to treat Alzheimer's disease, then gamma brain waves can be induced and microglia activated, but the signal becomes monotonous and causes fatigue or discomfort
Solution Approach 1:
The patent applies dynamics by transitioning from a monotonous acousto-optic stimulus to a dynamic light stimulation pattern that alternates between first and second light beams with different characteristics (e.g., color temperature, spectral composition) within a fixed period. This temporal variation in light properties maintains therapeutic effectiveness while preventing user fatigue and discomfort associated with monotone signals.
Solution Approach 2:
The patent changes physical parameters of the stimulus signal by alternating between light beams with different color temperatures and spectral compositions. The first light beam may have a first color temperature while the second light beam has a second color temperature, creating parameter variation that sustains user engagement and reduces fatigue while maintaining gamma wave induction and microglia activation.
2Reliability
If monotonous acousto-optic stimulus signal is used, then treatment effect is achieved, but long-term application becomes difficult due to boring nature
Solution Approach 1:
The patent makes the stimulus dynamic by alternating between different light beam types within a fixed period, creating a non-monotonous stimulation pattern. This dynamic characteristic enhances adaptability and user willingness for long-term application while preserving the therapeutic effect of inducing gamma brain waves and activating microglia.
Solution Approach 2:
The patent employs periodic action by structuring the light stimulation as alternating cycles of first light beam and second light beam within a fixed period. This rhythmic periodic pattern maintains therapeutic effectiveness while providing sufficient variation to prevent boredom and enhance long-term user engagement.
3Device complexity
If single light source is used, then device complexity is reduced, but color rendering index cannot be maintained at high level
Solution Approach 1:
The patent segments the light source system into multiple independent light sources (first light source and second light source) that can be controlled separately. This segmentation allows each light source to be optimized for specific color temperature or spectral characteristics, enabling high color rendering index while maintaining manageable device complexity through modular architecture.
Solution Approach 2:
The patent dynamically controls multiple light sources by alternating their operation within a fixed period, enabling the system to switch between different color temperatures and spectral compositions. This dynamic control allows high color rendering index performance while managing complexity through time-division multiplexing of the light sources.
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 device provides more comfortable and effective visual stimulation, overcoming the limitations of monotonous signals by reducing eye burden and enhancing user willingness for long-term application.
Implementation Method 1
a first light source, providing a first light beam in a first time period of a first period; and a second light source, providing a second light beam in a second time period of the first period
Data Source
AI summary
A light source device, including a first light source, providing a first light beam in a first time period of a first period; and a second light source, providing a second light beam in a second time period of the first period, is provided. The first light beam and the second light beam have the same color temperature. The first light beam and the second light beam are emitted alternately in the first period, and a color rendering index of mixed light of the first light beam and the second light beam is greater than or equal to 85.