Multi-Channel LED Lens Array for Continuous Beam Angle Control
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Solution Overview
Problem
Existing bi-focus LED lighting technologies are limited by a narrow range of focus and beam angles, typically only allowing for a smooth continuous sweep between 15 to 50 degrees, which is insufficient for simulating the performance of Fresnel lights, and lack multi-focus, multi-channel capabilities.
Innovation Solution
The use of multiple channels of LED/Lens combinations to achieve a smooth and continuous range of emitted beam angles exceeding 35 degrees, with a light panel design incorporating an array of LEDs, multiple modules, and integrated processor and output circuitry for DMX control, allowing for interweaving of primary beam angles to vary the total output beam angle between 8° and 120°.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple channels of LED/Lens combinations are used, then the range of beam angles is extended beyond 35 degrees, but the device complexity increases
Solution Approach 1:
The lighting device is divided into multiple independent channels, each containing LED arrays and corresponding lens assemblies with different beam angles (e.g., first channel with narrow beam angle lenses, second channel with wide beam angle lenses). This segmentation allows each channel to be controlled independently while collectively providing a continuous range of beam angles from 10 to 120 degrees, resolving the contradiction between extended adaptability and device complexity.
Solution Approach 2:
The system dynamically adjusts the intensity of each channel through independent dimming control, allowing smooth transitions between different beam angle configurations. The processor receives channel intensity values and adjusts LED output accordingly, enabling continuous beam angle variation without physical movement of components, thus extending adaptability while managing complexity through software control.
2Ease of operation
If multiple channels of LED/Lens combinations are used, then smooth continuous beam angle sweep is achieved, but the number of components increases
Solution Approach 1:
Multiple channels with different beam angle characteristics are merged into a single integrated lighting device. The first channel with narrow beam angles (10-30 degrees) and the second channel with wide beam angles (50-120 degrees) are combined such that their overlapping ranges create a continuous smooth sweep from 10 to 120 degrees. This merging approach achieves operational smoothness while consolidating components into a unified device structure.
Solution Approach 2:
The system ensures continuous useful action by designing channel beam angle ranges to overlap (first channel: 10-30 degrees, second channel: 50-120 degrees with transition zone). This overlap guarantees that at any desired beam angle between 10 and 120 degrees, at least one channel is actively contributing light output, enabling smooth continuous adjustment without gaps or discontinuities in the beam angle sweep.
3Adaptability or versatility
If beam angles are varied across a wide range, then versatility is improved, but color consistency deteriorates
Solution Approach 1:
Different channels are assigned specific beam angle ranges optimized for their lens characteristics. The first channel handles narrow beam angles (10-30 degrees) with corresponding LED arrays, while the second channel handles wide beam angles (50-120 degrees). This local quality assignment ensures that each channel operates within its optimal performance range, maintaining color consistency within each channel while collectively providing wide beam angle versatility across the entire device.
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 solution provides high beam integration, even intensity across the projected beam, steep falloff at the edges for an effective SPOT effect, uniform light emission, and reduced color variation over angles, resulting in a blended, homogeneous light across the panel array with smooth adjustments between beam angles.
Implementation Method 1
The lens channels selected are weighted so as to maximize the contribution of a single channel lens to the overall beam projection
Data Source
AI summary
The present disclosure is an improvement in bi-focus lenses. The disclosure relates to the use of multiple channels of LED/Lens combinations to achieve a smooth and continuous range of emitted beam angles of light in a wider range of beam angles than previously possible through only two channels of LED/Lens combinations. The resultant product will produce a continuous range of beam angles in a range exceeding 35 degrees from narrowest bean angle to widest beam angle. The lens channels selected are weighted so as to maximize the contribution of a single channel lens to the overall beam projection.