Controllable LED Lighting Apparatus with Selective Subset Drive
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Solution Overview
Problem
Outdoor lighting devices lack controllable light distribution capabilities, leading to complex installations and the need for multiple luminaire designs for different environments, increasing storage and maintenance complexities.
Innovation Solution
A lighting apparatus with a support substrate and multiple LED subsets, each covered by a lens element, where LEDs are divided into groups that can be selectively driven by a control means to adjust light beam size, shape, and intensity, allowing for adaptable light distribution without the need for multiple luminaire designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different luminaire designs are used for different outdoor environments, then the lighting can be adapted to specific illumination conditions, but the device complexity and number of parts to be stored increases
Solution Approach 1:
The patent implements a single luminaire design with multiple LED subsets (first subset with multiple LEDs, second subset with at least one LED) that can be selectively activated. The drive and control means enables this single device to perform multiple lighting functions by controlling different LED subsets, eliminating the need for multiple specialized luminaires while maintaining adaptability to various outdoor environments
Solution Approach 2:
The lighting apparatus divides the LED array into distinct subsets (first subset with plurality of LEDs, second subset with at least one LED) that can be independently controlled. This segmentation allows the system to activate specific subsets based on environmental conditions, enabling a single device to adapt to different lighting scenarios without requiring multiple complete luminaire designs
2Adaptability or versatility
If multiple luminaire designs are maintained for different environments, then specific illumination needs can be met, but the storage and maintenance complexity increases
Solution Approach 1:
The patent creates a universal luminaire design that can serve multiple outdoor environments through selective activation of LED subsets. This single standardized design replaces multiple environment-specific luminaires, simplifying storage, installation, and maintenance procedures while maintaining the ability to adapt to different illumination conditions through electronic control
3Adaptability or versatility
If controllable light distribution is implemented, then the lighting apparatus can adapt to diverse usage conditions, but the control system complexity increases
Solution Approach 1:
The control system manages complexity by segmenting control into distinct LED subsets rather than controlling individual LEDs. The drive and control means activates entire subsets based on environmental conditions, reducing the control complexity from managing many individual LEDs to managing a few subsets, while still achieving diverse light distribution patterns
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 versatile and energy-efficient lighting that can be adjusted for various outdoor conditions, including changing environments, reducing the number of parts required and improving safety and illumination quality.
Implementation Method 1
a plurality of LED subsets mounted on the support substrate, said plurality of LED subsets comprising at least a first subset having a plurality of LEDs and a second subset having at least one LED
Data Source
Figure 1~2
Figure 3~3A
Figure 4A~4B
AI summary
A lighting apparatus comprising: a support substrate; a plurality of subsets mounted on the support substrate, said plurality of subsets comprising at least a first subset having a plurality of LEDs and a second subset having at least one LED; a corresponding plurality of lens elements mounted such that each subset is covered by a lens element of the plurality of lens elements; wherein LEDs of the plurality of subsets are divided in a plurality of groups; wherein the plurality of groups comprises at least, a first group of LEDs comprising at least one LED of the first subset and at least one LED of the second subset, and a second group of LEDs comprising at least one LED of at least the first subset; a drive and control means configured to drive selectively the plurality of groups of LEDs wherein LEDs of the same group are driven simultaneously.