Illumination Apparatus Frame Light Extraction
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Solution Overview
Problem
Conventional illumination lamps with light guiding plates suffer from low light extraction efficiency and increased cost due to repeated light reflection, leading to inefficient energy use and non-uniform light output.
Innovation Solution
An illumination apparatus comprising a frame, an optical base plate with a first protrusion portion having reflective and top surfaces, a light source with light-emitting elements oriented towards the protrusion, and an optical film, which eliminates the need for a conventional light guiding plate, enhancing light extraction efficiency and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a light guiding plate is used to guide and transmit light, then the light can be transmitted through the illumination apparatus, but the light extraction efficiency decreases due to multiple reflections and energy loss
Solution Approach 1:
The patent removes the light guiding plate from the illumination apparatus structure. Instead of using a separate light guiding plate to transmit light, the invention uses the frame itself as the light transmission path, eliminating the need for the additional light guiding plate component and reducing energy loss from multiple reflections
Solution Approach 2:
The patent combines the light transmission function into the frame structure itself. The frame serves both as the structural support and as the light guiding element, merging multiple functions into a single component to reduce overall device complexity and improve light extraction efficiency
2Illumination intensity
If a light guiding plate is added to the illumination apparatus, then the light transmission function is improved, but the weight and cost of the flat lamp increase
Solution Approach 1:
The frame is designed to serve multiple functions: it provides structural support for the illumination apparatus and simultaneously acts as the light guiding element. This multi-functional design eliminates the need for a separate light guiding plate, reducing weight while maintaining light transmission and uniformity functions
3Productivity
If a light guiding plate is used to transmit light through total reflection, then light can reach the output surface, but the energy is lost during multiple reflections
Solution Approach 1:
The patent extracts the light transmission function from the light guiding plate and integrates it into the frame structure. This eliminates the multiple internal reflections that occur in a separate light guiding plate, reducing energy loss while maintaining effective light transmission to the output surface
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 achieves higher light extraction efficiency and better light output uniformity, reducing costs and energy waste while maintaining a compact design.
Implementation Method 1
The first protrusion portion has at least a reflective surface
Data Source
AI summary
An illumination apparatus includes a frame, an optical base plate, a light source and an optical film. The optical base plate is disposed in the frame and has a first protrusion portion at the center of the optical base plate. The first protrusion portion has at least a reflective surface and a top surface, which are connected with each other. The light source is disposed in the frame and located adjacent to the periphery of the optical base plate. The light source is disposed corresponding to the reflective surface and has a plurality of light-emitting elements. Each light-emitting element has an optical axis direction, and the optical axis directions extend toward the first protrusion portion. The optical film is disposed at the frame, and the first protrusion portion of the optical base plate protrudes toward the optical film.