LED Luminaire Beam Angle Control via Motorized Lens Actuation
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Solution Overview
Problem
Existing luminaire systems with LED modules lack the ability to control the beam angle of individual light modules separately, limiting the shaping and control of the combined light beam.
Innovation Solution
A method for independently adjusting the beam angle of each LED light module using a modular beam angle control system, which includes a linear array of light-emitting modules with optical devices like lenses that can be actuated by motors to alter the beam angle, allowing for synchronized and independent movement of LED light modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single mechanism is used to change the beam angle of every light module together, then the beam angle can be adjusted uniformly across all modules, but the ability to control individual module beam angles separately is lost
Solution Approach 1:
The patent divides the single beam angle control mechanism into multiple independent control mechanisms, with each LED light module having its own motor-driven lens assembly. This segmentation allows each module to be controlled independently while maintaining the overall wash light functionality, resolving the contradiction between uniform control ease and individual module adaptability.
2Adaptability or versatility
If multiple individual LED sources are used to produce mixed color output, then color versatility is improved, but the ability to control beam shape and pattern is reduced
Solution Approach 1:
The patent introduces dynamic control elements (motors) that allow the lens assemblies to move and adjust in real-time. This enables the system to dynamically change beam angles and shapes for each individual LED module while maintaining color mixing capabilities, resolving the contradiction between color versatility and beam shaping control.
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
Enables precise control over the beam angle of each module, allowing for even and adjustable lighting effects, and the creation of unique lighting patterns by allowing individual control of each module's output, enhancing the flexibility and creativity in lighting designs.
Implementation Method 1
Each optical light-emitting module comprises a light source, an optical device, and a motor. The motor is actuated to alter the beam angle of light emitted from the light-emitting module.
Data Source
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AI summary
Described is a method for controlling the beam angle of individual lighting devices in luminaires, specifically to a method relating to providing the coordinated control of the beam spread of LED modules in a wash light. The LEDs may be mounted in a plurality of modules. The modules may be in a linear arrangement. The LEDs may be mounted in a plurality of modules that are arrayed in a two dimensional array. The modules in the linear arrangement or in the two dimensional array may be mounted in groups forming modular group assemblies where the beam angle of each modular group assembly may be controlled independent of other modular group assemblies.