Light Engine With Segmented LEDs And Flexible PCB
Solution Overview
Problem
Existing lighting systems, particularly those using LEDs, lack the ability to independently control light distribution and intensity across multiple LED segments, limiting their adaptability to various applications requiring specific illumination patterns.
Innovation Solution
A light engine comprising a core with an opening, independently addressable LED segments, a flexible printed circuit board, and control circuitry that adjusts voltage, current, and duty cycle to achieve precise illumination distribution and intensity based on user input, allowing for customizable light output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If traditional LED lighting systems are used, then energy efficiency and heat radiation characteristics are improved, but the ability to independently control light distribution and intensity across multiple LED segments deteriorates
Solution Approach 1:
The LED array is divided into multiple independently addressable LED segments that can be controlled separately. Each segment can be individually addressed by control circuitry to achieve different light distribution patterns and intensities, enabling the system to adapt to various applications while maintaining the energy efficiency of LEDs.
2Adaptability or versatility
If multiple independently addressable LED segments are implemented, then adaptability to various illumination patterns is improved, but device complexity increases
Solution Approach 1:
The LED array is divided into multiple independently addressable LED segments that can be controlled separately. Each segment can be individually addressed by control circuitry to achieve different light distribution patterns and intensities, enabling the system to adapt to various applications while maintaining the energy efficiency of LEDs.
Solution Approach 2:
The control circuitry dynamically adjusts parameters such as current, voltage, and duty cycle for each LED segment to achieve desired illumination patterns. By changing these electrical parameters independently for each segment, the system can create various light distribution patterns without requiring complex mechanical or optical components.
3Manufacturing precision
If independent control of each LED segment is achieved through voltage and current adjustment, then illumination distribution precision is improved, but manufacturing precision requirements increase
Solution Approach 1:
The control circuitry dynamically adjusts parameters such as current, voltage, and duty cycle for each LED segment to achieve desired illumination patterns. By changing these electrical parameters independently for each segment, the system can create various light distribution patterns without requiring complex mechanical or optical components.
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 flexible and customizable lighting solutions that can match specific illumination requirements, enhancing the adaptability of LED-based lighting systems for diverse applications by allowing independent control of each LED segment.
Implementation Method 1
A plurality of independently addressable light emitting diode (LED) segments, each LED segment comprising a plurality of LEDs
Implementation Method 2
a controller configured to control a duty cycle of the LED segments based on the user input to independently control light intensity from each of the LED segments
Data Source
AI summary
A light engine is disclosed in which the light engine contains a core comprising an opening extending completely through the core and independently addressable LED segments. The opening defines an inner surface of the core. Each segment has multiple LEDs. A PCB contains a body adjacent to one of an inner or outer surface of the core and to which the LED segments are attached and legs extending from the body and bent to be adjacent and traverse to the other of the inner or outer surface. Each leg is associated with a different LED segment. Control circuitry is connected with the legs of the flexible PCB and independently controls parameters of the LED segments to provide a preset illumination distribution and intensity based on user input.