LED Light Redirection Accessory Thermal Dissipation
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Solution Overview
Problem
High-intensity discharge (HID) lamps face challenges with long warm-up times, long restrike times, and moderate lifespan, along with inefficiencies in light distribution and glare issues, which are not effectively addressed by existing technologies.
Innovation Solution
A lighting system combining LED technology with a heatsink for improved thermal management, optics for tailored light distribution, and electronic accessories to enhance efficiency and reduce weight, allowing for high lumens output while minimizing glare and improving light control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If HID lamps are used to achieve high light output, then illumination intensity is improved, but warm-up time and restrike time increase significantly
Solution Approach 1:
The patent replaces the HID lamp's arc discharge mechanism with an LED-based solid-state lighting system. This substitution eliminates the need for arc tube heating and cooling cycles, providing immediate full-brightness operation without warm-up or restrike delays while maintaining high illumination output.
Solution Approach 2:
The invention changes the fundamental operating parameters from thermal arc discharge to electroluminescence. By using LEDs with appropriate thermal management and optical systems, the system achieves high light output with instantaneous response time, fundamentally changing the time-temperature relationship that characterizes HID operation.
2Illumination intensity
If HID lamps are used to achieve high light output, then illumination intensity is improved, but lifespan is reduced
Solution Approach 1:
The patent replaces the fragile arc tube and electrode system of HID lamps with solid-state LED components. This substitution eliminates filament evaporation, electrode degradation, and arc tube failure modes, extending operational life significantly while maintaining high light output through multiple LED modules.
Solution Approach 2:
The invention uses composite thermal management systems combining heatsinks, thermal paste, and airflow channels to protect LED components from thermal degradation. This composite approach enables sustained high-brightness operation over extended periods by maintaining optimal operating temperatures for all components.
3Ease of operation
If optics are used to redirect HID light into useful distribution, then light control is improved, but optical loss increases
Solution Approach 1:
The patent incorporates optical redistribution elements directly into the LED module design before light emission. By pre-shaping the light distribution pattern at the source through LED arrangement and integrated optics, the system achieves precise light control with minimal subsequent optical manipulation, reducing cumulative optical losses.
Solution Approach 2:
The invention applies different optical characteristics to different regions of the light output. By varying LED orientations, individual optic designs, and local reflector properties across the fixture, the system optimizes light distribution for specific zones while minimizing overall optical losses through targeted rather than universal optical intervention.
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 LED lighting system achieves efficient light distribution, reduced glare, and extended lifespan, offering a lightweight solution that surpasses HID lamps in performance and efficiency, particularly in high bay and low bay applications.
Implementation Method 1
a heatsink for improved thermal management
Implementation Method 2
improved air flow to a heatsink, thus improving thermal dissipation
Implementation Method 3
a light emitting diode (LED)
Implementation Method 4
light emitting diode (LED)
Implementation Method 5
a primary optic that redirects at least a portion of the raw LED light distribution into a primary optical distribution
Implementation Method 6
optics for tailored light distribution
Implementation Method 7
a secondary optical accessory that redirects at least a portion of the primary optical distribution into a secondary optical distribution
Implementation Method 8
optics for tailored light distribution
Data Source
AI summary
Apparatus and associated methods relate to development of a LED system with high thermal dissipation power relative to the system weight by the inclusion of open regions. The open regions reduce the weight of the optical system while improving airflow. Associated optics are described to efficiently and evenly distribute the light from an LED by tailoring the optical distribution. In addition, circuitry and methods are described to allow for the LED system to operate with existing power sources such as ballast or offline AC voltage sources or both.