Compact Monolithic Lens for LED Glare Reduction
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Solution Overview
Problem
Current LED lighting sources face challenges such as low light output, high upfront costs, complexity in manufacturing, limited beam angles, and non-uniform light distribution, which hinder their adoption as primary lighting solutions due to issues like hot spots, dark spots, and glare, and are limited by heat sink capabilities and manufacturing complexity.
Innovation Solution
A compact optic lens with a monolithically formed optical design featuring a light receiving, reflecting, and blending region, along with a glare cap, to direct and blend light from high-intensity sources, enhancing beam angles, reducing glare, and improving light uniformity, while using a modular approach to simplify manufacturing and increase reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED lighting sources are used to reduce energy consumption, then energy efficiency is improved, but light output intensity deteriorates
Solution Approach 1:
The patent combines multiple optical functions (light receiving, reflecting, blending) into a single monolithic lens structure. This integration allows the LED light source to achieve high light output intensity comparable to halogen bulbs while maintaining low energy consumption, resolving the contradiction between energy efficiency and illumination intensity.
Solution Approach 2:
The lens incorporates a glare cap that selectively blocks light in specific angular regions (glare regions) while allowing light transmission in other regions. This local modification of light distribution properties enables the system to maintain high overall light output while controlling glare, thus preserving energy efficiency without sacrificing illumination quality.
2Illumination intensity
If traditional multi-component optical designs are used, then light distribution control is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple optical components (light receiving region, reflecting region, blending region, and glare cap) into a single monolithically formed lens. This consolidation maintains precise light distribution control while dramatically simplifying manufacturing processes and reducing assembly complexity.
Solution Approach 2:
Within the monolithic lens, different functional regions (light receiving, reflecting, blending) are spatially segmented and optimized. This allows complex optical functionality to be achieved through regional differentiation within a single component, maintaining light distribution precision without increasing overall device complexity.
3Illumination intensity
If high intensity light sources are used to increase brightness, then illumination intensity is improved, but glare increases
Solution Approach 1:
The glare cap selectively modifies light transmission based on angular position, blocking light in glare-prone regions while preserving light transmission in non-glare regions. This enables the system to maintain high brightness where needed while eliminating harmful glare, resolving the contradiction between illumination intensity and glare reduction.
Solution Approach 2:
The glare cap converts potentially harmful direct light into beneficial distributed light by blocking direct high-intensity rays while allowing scattered light to contribute to overall illumination. This transforms the harmful effect of high-intensity direct light into a benefit by redistributing it to create uniform illumination without glare.
4Object-affected harmful factors
If LED lighting sources are used to reduce toxic substance usage, then environmental safety is improved, but light output performance deteriorates
Solution Approach 1:
The monolithic lens design with integrated light receiving, reflecting, and blending regions enables LED light sources to achieve halogen-level brightness output. This allows the environmental benefits of LED (no toxic mercury) to be maintained while eliminating the historical performance deficit, resolving the contradiction between environmental safety and light output.
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 improved light output and uniformity, reducing glare and manufacturing complexity, enabling LED lighting to match the brightness of halogen bulbs with significantly less energy consumption and lower production costs, while maintaining reliability and durability.
Implementation Method 1
a light receiving region, a light reflecting region, a light blending region, and a light output region
Implementation Method 2
the light reflecting region comprises a surface on the transparent body that is configured to receive the first output light from the light receiving region, and is configured to provide a second output light within the plurality of first two-dimensional planes within the transparent body to the light blending region
Implementation Method 3
the light blending region comprises a plurality of prism structures formed on the transparent body that is configured to receive the second output light from the light reflecting region, wherein the plurality of prism structures is configured to optically deflect the second output light to form a deflected output light within a plurality of second two-dimensional planes
Data Source
AI summary
Compact reflective lens for a high intensity light emitting diode light sources having improved output beam characteristics are disclosed. The reflective lenses can be configured to increase output intensity, control output light characteristics, and reduce glare.