Surface Mount LED Lamp with Flat Window and Reflective Outer Section
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional lighting systems, particularly those using LEDs, face inefficiencies in distributing light energy to achieve even intensity conical output distributions, leading to increased energy requirements, higher costs, and potential LED temperature issues, which affect product life and color consistency.
Innovation Solution
A surface mount LED lamp design featuring a central flat circular window for minimal distortion and a second section with refractive and reflective surfaces to collect and redirect light, creating a smooth cosine-shaped light distribution and evening out intensity across the intended viewing angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED lighting systems are used to achieve even intensity conical output distributions, then the required illumination standards can be met, but energy efficiency deteriorates and energy requirements increase
Solution Approach 1:
The optical system is divided into multiple discrete optical elements (lens segments) that can be individually optimized and positioned. Each segment handles a specific angular range of light distribution, allowing precise control over the intensity profile while minimizing energy waste through optimized light path management.
Solution Approach 2:
Different regions of the optical system are designed with different optical properties. The optical elements have varying refractive indices, curvatures, and geometries tailored to specific spatial zones, enabling local optimization of light distribution to achieve even intensity output while maximizing energy efficiency in each region.
2Illumination intensity
If conventional LED lighting systems with additional optical components are used to redistribute light energy, then even intensity distribution can be achieved, but device complexity increases
Solution Approach 1:
Multiple optical functions (light redistribution, intensity equalization, angular control) are merged into integrated optical elements. The patent combines refractive and reflective surfaces within single optical components, reducing the total number of separate elements while achieving the desired even intensity conical distribution.
Solution Approach 2:
The optical elements are designed to perform multiple functions simultaneously: light gathering, collimation, intensity equalization, and angular distribution control. This multi-functionality reduces the overall system complexity by eliminating the need for separate components for each function.
3Illumination intensity
If conventional diffusing lenses are used to redistribute light energy, then light distribution can be modified, but energy loss increases due to reflection and absorption
Solution Approach 1:
The patent converts potentially harmful high-angle light rays that would normally be lost into useful illumination by using reflective surfaces to redirect them into the desired conical distribution. What would be waste energy becomes contributing to the even intensity output.
Solution Approach 2:
The patent replaces conventional diffusing lenses that rely on scattering and absorption mechanisms with reflective optical surfaces that redirect light through geometric optics. This substitution minimizes energy loss by using reflection rather than diffusion, maintaining higher energy efficiency while achieving the desired light distribution.
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
This design enhances light distribution efficiency, reduces energy requirements, lowers costs, and maintains LED temperature, providing a cost-effective and aesthetically pleasing even illumination while meeting regulatory illumination standards.
Implementation Method 1
a second outer section has both refractive and internally reflective surfaces for the purpose of collecting the wider output angle light from the LED source
Implementation Method 2
a second outer section has both refractive and internally reflective surfaces for the purpose of collecting the wider output angle light from the LED source
Data Source
AI summary
A surface mount LED lamp includes a central first section having a flat circular window that provides a direct view window to the source energy and having an angle equal to the total intended output viewing angle of the LED lamp thereby providing a smooth and relatively undistorted output intensity distribution. The window allows the energy from the wide angle LED source to exit the lamp with minimal distortion, creating a smooth generally cosine shaped light distribution through the intended viewing angle of the device. A second outer section has both refractive and internally reflective surfaces for the purpose of collecting the wider output angle light from the LED source thereby adding to the intensity at the outer edges of the distribution.