LED Wall Lamp Homogeneous Lighting via Polyhedral Refraction
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Solution Overview
Problem
Existing wall and ceiling lamps with LEDs often result in uneven illumination in large rooms, with some areas being too bright and others poorly lit, due to direct and intense light production.
Innovation Solution
A wall lamp design that diffuses LED light and allows for directional control of the diffused light, using a combination of a translucent cover and a directional flat element, enabling 360-degree light direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED spotlights are used to provide illumination in large rooms, then the lighting intensity is improved, but the illumination becomes uneven with areas that are very bright and others that are poorly lit
Solution Approach 1:
The light beam is segmented into multiple directional sub-beams by the polyhedral refractive element, which divides the single intense LED light source into several controlled directional streams. This segmentation allows the light to be distributed more evenly across different areas of the room, reducing the contrast between very bright and poorly lit zones while maintaining overall illumination intensity.
2Use of energy by moving object
If LED spotlights are used to provide illumination, then the energy efficiency is improved, but the direct light produced is too intense and may become annoying
Solution Approach 1:
The polyhedral refractive element acts as an intermediary between the LED light source and the room space. It intercepts the intense direct light from the LED and redistributes it into multiple controlled directional beams, thereby mediating the light intensity to eliminate annoying direct glare while preserving the energy efficiency of the LED source.
3Stability of the object's composition
If a translucent cover is used to diffuse LED light, then the light diffusion is improved, but the ability to direct the light in specific directions is reduced
Solution Approach 1:
Instead of using a conventional translucent cover that diffuses light in all directions, the patent employs a polyhedral refractive element that segments the light into multiple controlled directional beams. Each face of the polyhedral structure acts as a separate light-guiding surface, maintaining directionality while achieving diffusion across multiple zones. This allows both diffusion and directional control to coexist.
Solution Approach 2:
The patent transitions from two-dimensional light diffusion (as provided by flat translucent covers) to three-dimensional directional control using a polyhedral structure. The multiple faces and internal refraction paths of the polyhedral element create additional spatial dimensions for light manipulation, enabling simultaneous diffusion and precise directional guidance that flat surfaces cannot achieve.
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 provides more homogeneous lighting in rooms, improving comfort and illuminating previously dark areas, while also being energy-efficient and versatile for use as both a wall and ceiling light.
Implementation Method 1
capable of diffusing the light produced by LEDs
Implementation Method 2
a directional flat element... enabling 360-degree light direction
Data Source
AI summary
The present invention concerns an LED wall lamp capable of providing particularly omogeneous and directional lighting.