Embedded LED Ceiling Tile Illumination System

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Solution Overview

Problem

Conventional overhead ceiling lighting systems are inefficient, wasteful, and inflexible, with bulky fixtures and high voltage requirements, leading to energy waste and glare, and they are not easily adaptable or embeddable in thin ceiling materials.

Innovation Solution

Integration of thin, directionally illuminating LED lighting engines with power and control components within lightweight ceiling materials, using low-voltage DC power and advanced optics to create a distributed, intelligent lighting system that can be precisely controlled and tailored to specific illumination needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If conventional high voltage lighting fixtures are used to provide sufficient illumination, then illumination intensity is improved, but energy consumption increases and glare is generated

Engineering Contradiction:
Improveillumination intensityVSAvoidenergy consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent divides the ceiling into multiple zones with individual LED modules embedded in ceiling tiles, replacing single high-power fixtures with distributed low-power units. Each module provides localized illumination, collectively achieving sufficient overall illumination while consuming less energy and eliminating glare from concentrated light sources.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements selective illumination by controlling individual LED modules in specific ceiling tiles to provide light only where needed. This allows different illumination levels in different areas, optimizing energy consumption while maintaining required illumination intensity in task areas.

Inventive Principle:
Principle #3Local quality

2Area of stationary object

If conventional lighting fixtures are installed to provide adequate lighting coverage, then illumination area is improved, but device complexity and infrastructure requirements increase

Engineering Contradiction:
Improveillumination areaVSAvoiddevice complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent uses standardized LED modules that can be embedded in any ceiling tile, making the lighting system universally applicable across the entire ceiling area. The same module design and installation procedure works throughout, simplifying the system while covering large illumination areas.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses existing ceiling tile infrastructure and standard electrical outlets to power LED modules. Each module is self-contained with its own driver circuitry, eliminating the need for complex dedicated wiring infrastructure while achieving wide illumination coverage.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If conventional lighting systems are deployed to meet lighting needs, then adaptability is limited, but system complexity is reduced

Engineering Contradiction:
ImproveadaptabilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements individually controllable LED modules that can be dynamically adjusted in intensity and timing. Each module responds to motion detection and ambient light sensing, providing adaptive illumination that changes based on real-time conditions while maintaining simple modular hardware.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes illumination parameters (intensity, timing, distribution) by controlling individual LED modules rather than changing physical infrastructure. This allows high adaptability through software control while maintaining simple modular hardware deployment.

Inventive Principle:
Principle #35Parameter changes

4Illumination intensity

If LED lighting modules are embedded in ceiling tiles to reduce glare and improve aesthetics, then illumination quality is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveillumination qualityVSAvoidmanufacturing complexity
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

The patent separates the lighting function into discrete LED modules that are manufactured independently and then embedded in ceiling tiles during installation. This allows specialized LED module manufacturing while keeping ceiling tile production simple and modular.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses the ceiling tile as an intermediary carrier that simplifies the integration of LED modules. The tile provides a standardized embedding cavity and mounting structure, making the manufacturing and installation process straightforward while achieving high illumination quality.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 approach reduces energy consumption, minimizes glare, and enhances aesthetic and functional flexibility, enabling more sophisticated lighting control and installation efficiency while reducing infrastructure costs and physical hazards.

Implementation Method 1

Low voltage lighting fixtures based on the semiconductor light emitting diode (LED)

Methodology Applied
Scientific EffectLight emitting diode (LED): Light Emitting Diode

Implementation Method 2

Semiconductor LEDs are chosen for all practical examples of embedded luminaires in the present invention

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 3

arranging comparably thin LED luminaires with acceptably distinct down-lighting illumination patterns

Methodology Applied
Scientific EffectLight redirection: Reflection

Implementation Method 4

thin flat fluorescent sources, flat micro plasma discharge sources and electron stimulated luminescence

Methodology Applied
Scientific EffectOptical guidance: Waveguide (optics)

Data Source

PatentEP2350526B1Distributed illumination system
Publication Date: 2014.12.31 QUALCOMM MEMS TECH INC
  • EP2350526B1 patent drawingFigure 1A~1C
  • EP2350526B1 patent drawingFigure 1D~1F
  • EP2350526B1 patent drawingFigure 2A~2C

AI summary

The present invention introduces a new class of lightweight tile-based illumination systems for uses wherein thin directionally-illuminating light distributing engines are embedded into the body of otherwise standard building materials like conventional ceiling tiles along with associated means of electrical control and electrical power interconnection. As a new class of composite light emitting ceiling materials, the present invention enables a lighter weight more flexibly distributed overhead lighting system alternatives for commercial office buildings and residential housing without changing the existing materials. One or more spot lighting, task lighting, flood lighting and wall washing elements having cross-sectional thickness matched to that of the building material or tile into which they are embedded, are contained and interconnected within the material body's cross-section. Embedded power control devices interconnected to each lighting element in the distributed system communicate with a central switching center that thereby controls each light-emitting element in the system.