Lighting Module With Reflective Plate For Glare Reduction
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Solution Overview
Problem
Conventional LED lighting systems often produce intense light that can cause eye strain and discomfort, as they typically do not effectively distribute light in a way that mitigates glare and maintains color accuracy, leading to potential distortion of object colors and increased user fatigue.
Innovation Solution
A lighting module design featuring multiple side light sources, light guide plates, and a reflective plate with different reflectance coatings on its surfaces, along with diffuser plates, to control light emission and create a balanced, directional light distribution that reduces glare and enhances color rendering index (CRI) by combining light from sources with different color temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED lighting systems are used to provide high illumination intensity, then lighting efficiency is improved, but eye strain and discomfort increase due to intense direct light
Solution Approach 1:
A reflective plate is introduced as an intermediary component between the LED light source and the user. This reflective plate redirects the intense direct light from the LED, converting it into indirect ambient light that illuminates the surrounding area without directly entering the user's eyes, thereby maintaining lighting efficiency while reducing eye strain and discomfort
Solution Approach 2:
The lighting system transitions from direct one-dimensional light emission toward the user to multi-dimensional indirect light distribution through the reflective plate. The light is redirected along different paths and angles, creating ambient illumination from multiple directions rather than a single direct source, which reduces glare and eye strain
2Device complexity
If direct lighting is used to simplify the lighting structure, then device complexity is reduced, but color accuracy deteriorates due to intensified light that distorts object colors
Solution Approach 1:
The reflective plate serves as a mediator that modifies the light path and distribution characteristics. By redirecting light indirectly, it softens the intensified LED light and prevents color distortion, maintaining color accuracy without requiring complex optical systems or additional components
3Illumination intensity
If multiple light guide plates with different materials are used to control light distribution, then light emission control is improved, but device complexity increases
Solution Approach 1:
Different regions of the light guide plates are designed with different optical properties and material characteristics. This allows specific areas to control light emission in different directions and intensities, achieving precise light distribution control while maintaining a relatively simple overall structure through localized material variations rather than complex multi-component systems
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 effectively reduces eye strain by distributing light in a way that minimizes glare and maintains accurate color representation, improving user comfort and reducing fatigue through the controlled emission of light from multiple sources with varying color temperatures.
Implementation Method 1
the reflective plate comprises a top surface and a bottom surface and wherein the top and the bottom surfaces of the reflective plate are coated with reflective materials having mutually different reflectances respectively
Data Source
AI summary
A lighting module includes a first side light source; a second side light source; a first light guide plate disposed between the first side light source and the second side light source; a second light guide plate disposed between the first side light source and the second side light source and disposed below the first light guide plate; a reflective plate between the first light guide plate and the second light guide plate; a first case coupled to one side of the first light guide plate, coupled to one side of the second light guide plate, and receiving the first side light source; and a second case coupled to the other side of the first light guide plate, coupled to the other side of the second light guide plate, and receiving the second side light source.