LED Illuminated Glass Insulating Panel with Spacer Profile

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Solution Overview

Problem

Glass lighting panels with organic glass layers are prone to surface defects such as scratches and stripes, which cause local refraction of light and deteriorate the uniformity and aesthetics of the illuminated surface.

Innovation Solution

A glass lighting panel design featuring a spacer profile with spring lips and a stop to maintain an intermediate organic glass substrate between two glass substrates, allowing light sources to emit light into the organic glass layer, which is arranged to deflect light out of the plane and provide a diffused output, while also incorporating heat dissipation mechanisms to manage temperature and prevent efficiency loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If an intermediate organic glass substrate is used to provide diffused light output, then the light uniformity and aesthetics are improved, but the surface is highly sensitive to scratches and stripes that cause local refraction and deteriorate uniformity

Engineering Contradiction:
Improvelight uniformityVSAvoidsurface durability
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent introduces a protective glass substrate as an intermediary layer between the external environment and the organic glass substrate. This glass layer protects the organic material from scratches and surface defects while allowing light to pass through. The spacer profile maintains the intermediate space between the protective glass substrate and the organic glass substrate, ensuring the protective function is maintained without compromising light diffusion.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a composite structure combining inorganic glass substrate (protective layer) and organic glass substrate (light diffusion layer). This composite approach leverages the scratch resistance of glass and the light-diffusing properties of organic material, resolving the contradiction between durability and light uniformity.

Inventive Principle:
Principle #40Composite materials

2Illumination intensity

If light sources are arranged to emit light into the organic glass layer along a plane of the panel, then the light is deflected and diffused effectively, but heat accumulation occurs that reduces light source efficiency

Engineering Contradiction:
Improvelight diffusion effectivenessVSAvoidheat accumulation
Core Design Contradiction:
Illumination intensityVSTemperature

Solution Approach 1:

The spacer profile acts as an intermediary thermal management component, providing a thermal pathway from the light sources to the external environment. The spacer material and its geometric design facilitate heat dissipation from the light sources embedded in or mounted on the spacer, preventing heat accumulation that would otherwise reduce light source efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the thermal parameters of the system by introducing the spacer profile with specific thermal conductivity properties and geometric characteristics. The spacer's thickness, material composition, and connection to heat sinks or dissipation structures are optimized to maintain appropriate temperature levels, allowing high-power LED arrays to operate efficiently without thermal degradation.

Inventive Principle:
Principle #35Parameter changes

3Power

If higher densities and power levels of light sources are used to increase illumination, then the light output is enhanced, but heat generation increases that compromises panel performance

Engineering Contradiction:
Improvelight output powerVSAvoidheat loss
Core Design Contradiction:
PowerVSLoss of energy

Solution Approach 1:

The patent optimizes thermal management parameters including spacer material thermal conductivity, spacer geometry, and heat dissipation surface area. These parameter changes enable the system to handle higher power densities from LED arrays by improving the heat transfer rate from the light sources to the environment, maintaining energy efficiency even at high illumination levels.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The spacer profile serves as a thermal intermediary, conducting heat away from the light sources and distributing it across a larger area for more efficient dissipation. This intermediary thermal pathway prevents localized heat buildup that would occur with high-density LED arrays, enabling sustained high-power operation without compromising panel performance or light source longevity.

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

The solution enhances the uniformity and aesthetics of the light output by minimizing the impact of surface defects and allows for higher densities and power levels of light sources by effectively dissipating heat, maintaining the quality and efficiency of the lighting panel.

Implementation Method 1

every default (scratch and/or stripe and/or protrusion) on the surface of the organic glass layer creates local refraction of the light beam propagating in the panel

Methodology Applied
Scientific EffectLight refraction: Refraction

Implementation Method 2

at least part of the intermediate organic glass substrate is arranged to deflect the light out of the plane of the panel and through at least one of the first and second glass substrates to provide a diffused light output

Methodology Applied
Scientific EffectLight diffusion: Scattering

Implementation Method 3

first and second spring lips extending along at least a portion of the length of the intermediate organic glass substrate, said first and second spring lips being arranged to pinch both main surfaces of an edge of the intermediate organic glass substrate

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 4

the spacer profile also comprises means to dissipate heat generated by the at least one light source

Methodology Applied
Scientific EffectHeat dissipation: Convection

Data Source

PatentUS9250382B2LED illuminated glass insulating panel
Publication Date: 2016.02.02 AGC GLASS EUROPE SA
  • US9250382B2 patent drawing
  • US9250382B2 patent drawing
  • US9250382B2 patent drawing

AI summary

A glass lighting panel (1), comprising: a first glass substrate (101), a second glass substrate (102), a spacer profile (103) at the periphery of the glass panel (1) between the first and the second glass substrate, the spacer being used to maintain an intermediate space (104) between the first and second glass substrates, According to the invention, the panel comprises: an intermediate organic glass substrate (105), at least one light source (106). According to the invention, the spacer profile (103) comprises: means (107) to maintain the intermediate organic glass substrate (105) in the intermediate space (104) between the first and the second glass substrates, means (108) to lodge the at least one light source (106) so as the at least one light source emits light into the intermediate organic glass substrate (105) predominantly along a plane of the panel. According to the invention, at least part of the intermediate organic glass substrate (105) is arranged to deflect the light out of the plane of the panel and through at least one of the first and second glass substrates to provide a diffused light output.