LED Array Beam Control Luminaires with Removable Louver Mask
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Solution Overview
Problem
Existing LED array luminaires face challenges in maximizing light output while maintaining LEDs within their optimal operating temperature and achieving consistent luminosity across the array, as well as controlling beam angle and reducing spill light, which are not effectively addressed by current temperature sensing and optical device configurations.
Innovation Solution
A system utilizing a temperature sensor and predictive algorithm to optimize LED power usage, combined with a beam control array featuring a removable louver mask with adjustable optical elements to control beam angles and reduce spill light, allowing for efficient light output and uniformity across multiple LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED power is increased to maximize light output, then illumination intensity is improved, but LED temperature rises exceeding optimal operating temperature
Solution Approach 1:
The system performs preliminary characterization of each LED's temperature vs. power relationship and uses this data to predict future temperature based on current power levels and historical data. This allows the control system to proactively adjust power before temperature exceeds optimal ranges, maximizing light output while preventing overheating.
Solution Approach 2:
The system continuously monitors LED temperature and power consumption, using this feedback to dynamically adjust LED power levels. The control system compares actual temperature readings against predicted values and optimal operating ranges, automatically modifying power delivery to maintain temperatures within optimal ranges while maximizing illumination output.
2Reliability
If temperature safety band is applied to ensure safe operation, then LED reliability is improved, but light output is reduced due to conservative power limits
Solution Approach 1:
The system performs preliminary characterization of each LED's specific thermal properties and operating characteristics. By understanding each LED's unique temperature vs. power relationship in advance, the system can set optimized power limits that ensure safety while extracting maximum possible light output, rather than applying conservative universal safety margins.
Solution Approach 2:
The system dynamically adjusts operating parameters (power levels, duty cycles) based on real-time temperature measurements and predicted thermal behavior. This allows the system to operate LEDs at higher power levels when thermal conditions permit, temporarily exceeding static safety margins while maintaining reliability through continuous monitoring and adaptive control.
3Manufacturing precision
If optical devices are permanently attached to control beam shape and angle, then beam control precision is improved, but device complexity and maintenance difficulty increase
Solution Approach 1:
The system divides the optical control function into separate, modular components that can be independently adjusted. Rather than permanently attaching fixed optical elements to the luminaire, the system uses removable optical devices that can be easily swapped and positioned to achieve different beam shapes and angles, simplifying installation and maintenance while maintaining precision.
Solution Approach 2:
The system transitions from static, permanently attached optical elements to dynamic, adjustable optical configurations. Removable optical devices allow beam shape and angle to be changed on-demand without permanent installation, enabling the system to adapt to different application requirements while reducing installation complexity and maintenance burden.
4Object-generated harmful factors
If physical separation between LEDs is increased to reduce spill light, then color fringing is reduced, but light output intensity decreases
Solution Approach 1:
The system introduces removable optical devices as intermediaries between the LEDs and the environment. These optical elements control and shape the light beams, redirecting spill light and reducing color fringing without requiring increased physical separation between LEDs. The optical devices act as mediators that manage light propagation while preserving the compact LED arrangement and maintaining light output intensity.
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 system effectively maximizes LED output while maintaining optimal temperatures and achieving consistent luminosity, reduces spill light and color fringing, and allows for quick adjustment of beam angles without the need for tool-based changes.
Implementation Method 1
A system utilizing a temperature sensor and predictive algorithm to optimize LED power usage
Implementation Method 2
a beam control array featuring a removable louver mask with adjustable optical elements to control beam angles and reduce spill light
Data Source
AI summary
The present invention provides LED array systems with which provides for a LED array luminair with reduced color fringing, light spill reduction and beam angle control and LED protection.