Individually Addressable LED Zones for Custom Lighting Patterns
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Solution Overview
Problem
Conventional lighting technologies, such as incandescent, fluorescent, and metal halide HID, fail to provide customizable and compact light emitter devices capable of varying light intensity, patterns, and colors effectively.
Innovation Solution
The development of surface mountable chip-on-board (COB) LEDs with a submount and reflective material, allowing for individually addressable strings of LEDs to produce improved light output characteristics, including varied lighting patterns and colors, through optimized electrical configurations and encapsulant materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional lighting technologies (incandescent, fluorescent, metal halide HID) are used, then lighting applications can be provided, but customizable and compact light emitter devices with varying light intensity, patterns, and colors cannot be achieved
Solution Approach 1:
The patent divides the light emitter device into multiple individually addressable LED strings or zones that can be controlled independently. Each string contains multiple LEDs that can be selectively activated to create various lighting patterns, intensity levels, and color combinations, enabling high adaptability without requiring a completely different device for each application
Solution Approach 2:
The patent creates a universal light emitter device platform that can perform multiple functions through software control and selective activation of different LED strings. The same physical device can produce various lighting effects, patterns, and color temperatures by controlling which LEDs are active and at what intensity, eliminating the need for multiple specialized devices
2Illumination intensity
If surface mountable COB LEDs with reflective material are used, then beam angle is substantially reduced and light emission characteristics are improved, but light distribution pattern changes
Solution Approach 1:
The patent applies reflective material selectively in specific zones around the LED strings to control light distribution. By placing reflective surfaces in particular locations and orientations, the device concentrates light in desired directions while maintaining appropriate beam angles for different applications, allowing local optimization of light emission without compromising overall performance
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 more efficient, uniform, and brighter lighting with improved light emission profiles, cost-effectiveness, and versatility for various applications, including personal, industrial, and commercial lighting.
Implementation Method 1
Surface mountable (SMD) chip-on-board (COB) LEDs, components, and related methods having improved light output characteristics are provided hereinbelow. Devices, components, and methods described herein can advantageously provide a varied lighting pattern, lighting intensity, and light color output. LED devices and components disclosed herein can have a beam angle of a light output that is substantially reduced to thereby improve light emission and output characteristics.
Data Source
AI summary
A light emitter device includes a submount with a top surface and a bottom surface, electrically conductive traces on the top surface of the submount, light emitting diodes (LEDs) arranged on the top surface of the submount in light emitter zones, with the LEDs being electrically connected to respective traces of the traces, a retention material disposed over the top surface of the submount in a form of walls which physically separate the light emitter zones, and encapsulants that are dispensed in respective light emitter zones of the light emitter zones. The LEDs are individually addressable to independently control an output of light from each of the LEDs to produce a specified light output.