Optical Fibres Embedded in Moldable Materials for Pixelized Surfaces

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Solution Overview

Problem

Current lighting and signalling systems in opaque materials are exogenous and aesthetically undesirable, lacking the ability to transmit information and light endogenously, limiting their applications in energy efficiency, safety, and aesthetics.

Innovation Solution

Optical fibre beams are integrated into moldable materials to create a pixelized surface, allowing for two-way light and data transmission, connected to LED-light systems and sensors, enabling communication, colour changes, and energy harvesting without altering the material's appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If exogenous lighting and signalling systems are installed through negatives or superficial external fixing elements, then light transmission and signalling functions are achieved, but the surface appearance is degraded with visible marks and installations

Engineering Contradiction:
Improvelight transmissionVSAvoidsurface appearance
Core Design Contradiction:
Illumination intensityVSShape

Solution Approach 1:

The patent merges the lighting and signalling systems with the material structure itself by integrating optical fibres directly into the matrix during manufacturing. This eliminates separate external installations and creates a unified structure where the material body serves as both structural element and light transmission medium, resolving the contradiction between functional performance and aesthetic appearance.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The optical fibres are nested within the material matrix during the manufacturing process, with fibres being embedded into the material body before final curing or setting. This nesting approach allows the fibres to be completely enclosed within the material, making them invisible from the surface while maintaining full light transmission functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Illumination intensity

If optical fibres are installed a posteriori by superficial external fixing elements, then light transmission is achieved, but the system is not integral to the material and requires separate installation

Engineering Contradiction:
Improvelight transmissionVSAvoidinstallation complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-positioning and embedding optical fibres into the material matrix during the manufacturing process, before the material is cured or set. This preliminary integration eliminates the need for subsequent installation steps, reducing overall system complexity and ensuring the fibres become an integral, permanent part of the material structure.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The manufacturing process merges material formation with fibre integration into a single unified operation. The fibres are incorporated into the material body during molding or casting, eliminating the need for separate installation procedures and reducing device complexity by combining multiple steps into one.

Inventive Principle:
Principle #5Merging (Combining)

3Loss of information

If optical fibres are distributed systematically along the surface to create a pixelized surface, then communication and data transmission capabilities are enhanced, but the manufacturing process becomes more complex

Engineering Contradiction:
Improvedata transmission capabilityVSAvoidmanufacturing ease
Core Design Contradiction:
Loss of informationVSEase of manufacture

Solution Approach 1:

The patent applies local quality by varying the spatial distribution, density, and orientation of optical fibres within different regions of the material to create pixelized zones with specific data transmission characteristics. This localized control of fibre arrangement enables region-specific communication functions while maintaining overall manufacturing efficiency through standardized embedding processes.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The systematic distribution of optical fibres for pixelized communication is performed preliminarily during the manufacturing stage, with fibres positioned in predetermined patterns before the material is cured. This preliminary arrangement simplifies subsequent operations by eliminating the need for post-manufacturing fibre positioning and enables automated manufacturing processes.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If optical fibres are embedded in the material body, then the system remains unaltered over time and ages with the material, but the fibres must be precisely positioned during manufacturing

Engineering Contradiction:
Improveoperational availabilityVSAvoidfibre positioning precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent performs preliminary positioning of optical fibres during the manufacturing process, embedding them in predetermined locations before the material is cured or set. This preliminary action ensures precise fibre positioning is achieved during manufacturing, which then guarantees long-term operational reliability as the fibres remain fixed relative to the material structure throughout the material's service life.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The embedding process merges fibre positioning with the material manufacturing process itself, where fibres are incorporated into the matrix during molding or casting. This merging ensures that fibre positions are determined by the manufacturing process geometry, providing both the precision needed for functionality and the permanence required for long-term reliability.

Inventive Principle:
Principle #5Merging (Combining)

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 solution provides a permanent, aesthetically pleasing, and functional means for information transmission and energy harvesting, enhancing urban environments with interactive and dynamic surfaces that can communicate safety messages, generate power, and monitor structures without visible installations.

Implementation Method 1

allowing light, data and information in general to pass through an opaque element in an almost imperceptible way

Methodology Applied
Scientific EffectLight transmission through optical fibres: Optical Fibre

Implementation Method 2

The fibre terminals, when duly connected to a computer system provided with a LED-light switch

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 3

The fibre terminals, when duly connected to a computer system provided with a LED-light switch

Methodology Applied
Scientific EffectLight emission from LED: Light Emitting Diode

Implementation Method 4

The simultaneous use of end transmitting and lateral transmitting fibres (FODLL 1 and 2mm) allows superficial effects to be produced such as a change in the colour of the material's surface by the refraction of light transmitted to the outside

Methodology Applied
Scientific EffectLight refraction: Refraction

Data Source

PatentEP2704885B1Method for the application of optical fibres in moldable materials and materials thus obtained
Publication Date: 2016.03.23 SECIL CIA GERAL DE CAL E CIMENTO

AI summary

The present invention relates to a method for the application of optical fibres in cold moldable materials, such as concrete, or other cementitious materials produced from other binders such as plaster wherein optical fibre beams are embedded in such a way as to distribute the fibres according to a preset network mesh aimed at obtaining the desired pixelization effect in specific targeted areas. The invention also relates to pixelized materials which are obtained according to the method of the present invention.