LED Lighting Profile with Separate Reflecting Element

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Solution Overview

Problem

Traditional LED lighting devices are limited by their design, which directs luminous flux orthogonally to the support surface, restricting their application and being costly and complex to manufacture due to coextrusion processes.

Innovation Solution

A lighting device with a support profiled element housing an LED strip and a separate reflecting element, oriented to direct light flux parallel or angled to the surface, using a transparent portion for light emission, allowing for flexible material choices and simpler, cost-effective production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a coextrusion process is used to obtain the section and reflecting material strip, then the manufacturing integration is improved, but the manufacturing complexity and cost increase

Engineering Contradiction:
Improvemanufacturing integrationVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent divides the lighting device into separate functional components: a support structure housing the LED strip and a separate reflecting element. This segmentation allows each component to be manufactured independently using simpler processes, then assembled together, avoiding the complexity of coextrusion while maintaining manufacturing integration benefits.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines the support structure and reflecting element into a single integrated housing assembly that can be manufactured as one piece using injection molding or similar processes. This merging approach achieves functional integration without requiring complex coextrusion, simplifying the manufacturing process while maintaining structural unity.

Inventive Principle:
Principle #5Merging (Combining)

2Strength

If the LED strip is applied to a support strip, then the mechanical support is improved, but the light direction is restricted to orthogonal emission

Engineering Contradiction:
Improvemechanical supportVSAvoidlight direction flexibility
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The patent introduces a reflecting element as an intermediary component between the LED strip and the external environment. This reflecting element redirects the orthogonally emitted light from the LED strip at various angles, maintaining the simple support strip structure while achieving versatile light direction control.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent adds a spatial dimension to light emission by positioning the reflecting element at specific angles and orientations within the housing. This transforms the single-direction orthogonal emission into multi-directional illumination, effectively adding angular diversity without changing the LED strip's fundamental emission pattern.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Stability of the object's composition

If a reflecting material strip is integrated via coextrusion, then the structural integration is improved, but the manufacturing cost and complexity increase

Engineering Contradiction:
Improvestructural integrationVSAvoidmanufacturing cost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent separates the reflecting material from the support structure in the manufacturing process, allowing the support housing to be manufactured using cost-effective injection molding techniques. The reflecting element can then be added as a separate component through assembly, significantly reducing manufacturing complexity and cost while maintaining structural integration in the final product.

Inventive Principle:
Principle #1Segmentation

4Illumination intensity

If the LED strip emits light orthogonally to the support surface, then the luminous flux generation is improved, but the application versatility is reduced

Engineering Contradiction:
Improveluminous flux generationVSAvoidapplication versatility
Core Design Contradiction:
Illumination intensityVSAdaptability or versatility

Solution Approach 1:

The patent uses a reflecting element as a mediator that preserves the LED strip's efficient orthogonal light generation while redirecting this light to achieve various illumination patterns. This intermediary approach maintains the high luminous flux generation capability while enabling diverse application scenarios through controlled light redirection.

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

Enables wider application flexibility, customizable designs, and aesthetically pleasing solutions by directing light parallel to the surface, overcoming manufacturing complexities and cost issues of traditional solutions.

Implementation Method 1

a reflecting element 6, which is also housed inside the profiled element 2, and a portion 8 which is substantially transparent and/or translucent and which is associated and/or is formed/defined in said support profiled element 2; in particular, said portion 8 is such as to allow the passage of the luminous flux generated by said illuminating element 4 towards the outside. According to the invention, inside the profiled element 2, said reflecting element 6 is in a position substantially facing the illuminating element 4 and is oriented so as to reflect towards said portion 8 of said profiled element 2, the luminous flux generated by said illuminating element 4.

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentEP3788296B1A lighting device
Publication Date: 2023.03.29 TURN LIGHTS
  • EP3788296B1 patent drawingFigure 1~4
  • EP3788296B1 patent drawingFigure 5~8

AI summary

Lighting device, preferably LED, comprising a profiled element (2) to be applied to an external structure and which: - is provided with and/or is associated with at least one substantially transparent and/or translucent longitudinal portion (8) configured to allow the passage of a luminous flux generated by an illuminating element (4), preferably by a led strip, housed within a longitudinal chamber (10) defined inside said profiled element (2), - houses, in a position substantially facing said illuminating element (4), a reflecting element (6) oriented so as to reflect the luminous flux generated by said illuminating element (4) towards said substantially transparent and/or translucent portion (8) of said profiled element (2), and characterized in that said longitudinal chamber (10), which houses the illuminating element (4), is separate from a further longitudinal chamber (22) which is defined inside said profiled element (2) and which houses said reflecting element (6).