Multi-LED Light Source Module for Elderly Eye Health
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Solution Overview
Problem
Current illumination devices are not suited to the eye needs of elderly people, potentially harming their eye health due to being designed for younger individuals, and fail to meet their specific requirements for color discrimination and comfort.
Innovation Solution
A light source module comprising multiple light emitting bodies with adjustable peak wavelengths, intensities, and color coordinates, optimized to match the response curves of visual photoreceptor cells in elderly individuals, integrated into an illumination device with a power module and optical elements to provide suitable lighting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If illumination devices are designed according to eye needs of young people, then lighting effects are improved, but eye health of elderly people deteriorates
Solution Approach 1:
The illumination device segments the light source into multiple LED chips with different wavelengths (blue, cyan, green, yellow-green, red). Each wavelength component can be independently controlled to address different visual needs, allowing optimization for elderly eyes while maintaining overall lighting quality.
Solution Approach 2:
The device dynamically adjusts spectral parameters including peak wavelengths (440-470nm blue, 470-505nm cyan, 500-540nm green, 540-570nm yellow-green, 610-650nm red), color coordinates (x, y values for each wavelength), and intensity ratios. This enables tailoring the light spectrum to match the degraded spectral sensitivity of elderly photoreceptors while avoiding harmful blue light excess.
2Device complexity
If standard illumination spectrum is used, then device complexity is reduced, but color discrimination ability of elderly people deteriorates
Solution Approach 1:
The illumination device employs dynamic control of multiple LED channels with independent dimming capabilities. The controller adjusts intensity ratios of different wavelength components in real-time to optimize for elderly color discrimination needs, transforming a static single-spectrum source into a dynamically adaptable multi-spectral system.
Solution Approach 2:
The device integrates multiple functions within a single illumination unit: it provides general illumination, enhances color discrimination, compensates for age-related spectral sensitivity loss, and prevents eye damage. The multi-LED configuration enables simultaneous achievement of these diverse functions through coordinated wavelength management.
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 improves color discrimination and reading accuracy for elderly people by emitting light within specific wavelength and intensity ranges, enhancing eye comfort and health compared to standard illumination devices.
Implementation Method 1
a first light emitting body and a second light emitting body; adjust the peak wavelength, the peak intensity and the color coordinate of the light emitting body
Data Source
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AI summary
Embodiments of the invention disclose a light source module and an illumination device using the light source module. The light source module includes at least one of a first light emitting body, a second light emitting body, and a third light emitting body, three light emitting bodies have different characteristics of luminescence. The light source module and the illumination device using the light source module, provided by the embodiment of the invention, adjust a peak wavelength, a peak intensity and a color coordinate of a light emitting body in the light source module into a preset range, so that light rays emitted by the light source module can be suitable to living environments of elderly people, and also eye health of elderly people and lighting effects.