Segmented Light-Emitting Element for LED Lamp Conversion

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Solution Overview

Problem

Existing lamp constructions are not easily convertible for LED light sources due to their distinct light emission characteristics and operating conditions, which differ from conventional light sources, limiting their flexibility and efficiency.

Innovation Solution

A light-emitting element with different scattering properties in various areas, achieved through distinct materials or thicknesses, and optionally enhanced with prism-shaped features, allows for targeted control of light emission, enabling the use of LED light sources in conventional lamp constructions while optimizing conversion efforts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If LED light sources are used in conventional lamp constructions, then energy efficiency and reliability are improved, but conversion effort and complexity increase due to different light emission characteristics and operating conditions

Engineering Contradiction:
Improveenergy efficiencyVSAvoidconversion effort
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The light-emitting element is divided into multiple areas (first area with high scattering, second area with low scattering) that can be independently designed and manufactured. This segmentation allows each area to be optimized for its specific function while using standard LED components, reducing overall conversion complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The light-emitting element acts as an intermediary component between the LED light source and the conventional lamp construction. It transforms the directed LED light into either scattered or directed illumination as needed, enabling LED integration into existing lamp designs without major modifications.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If LED light sources are used, then directed light emission is achieved, but flexibility in illumination patterns is reduced compared to conventional light sources

Engineering Contradiction:
Improveoperational reliabilityVSAvoidlighting flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

Different areas of the light-emitting element have different optical properties (scattering vs. non-scattering). The first area provides diffuse illumination while the second area provides directed illumination, allowing the same LED source to achieve multiple lighting patterns and applications simultaneously.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The light-emitting element performs multiple functions: it can scatter light in the first area for diffuse illumination, transmit light in the second area for directed illumination, and is connectable to different carrier elements for various installation positions. This multi-functionality increases lighting flexibility while maintaining LED reliability.

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

3Loss of energy

If conventional lamp constructions are converted to LED, then energy efficiency is improved, but adaptation to LED's directed light emission is difficult

Engineering Contradiction:
Improveenergy lossVSAvoidconversion ease
Core Design Contradiction:
Loss of energyVSEase of manufacture

Solution Approach 1:

The light-emitting element serves as an adapter or intermediary that enables conventional lamp constructions to work with LED light sources. By placing this element between the LED and the lamp housing, existing lamp designs can be converted to LED with minimal modification while maintaining energy efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The light-emitting element can be connected to different carrier elements and used in various lamp constructions, making it a universal solution for converting different types of conventional lamps to LED. This universality simplifies the conversion process across multiple applications.

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

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 solution allows for flexible and efficient lighting by controlling light distribution, achieving diffuse illumination where needed and directed illumination elsewhere, thus enhancing the adaptability and performance of LED light sources in existing lamp designs.

Implementation Method 1

The light-emitting element has a first area in which light passing through is scattered to a greater extent than light passing through a second area

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentEP2622260B1Arrangement for directed light emission
Publication Date: 2017.06.07 ZUMTOBEL LIGHTING GMBH
  • EP2622260B1 patent drawingFigure 1
  • EP2622260B1 patent drawingFigure 2~3
  • EP2622260B1 patent drawingFigure 4~5

AI summary

The invention relates to an arrangement for light emission, comprising at least one LED illuminant in a long arrangement, a carrier element carrying the LED illuminant, and a light emitting element that can be connected to the carrier element. The light emitting element comprises a first region (41) wherein traversing light is extensively scattered. It also comprises a second region (40) wherein traversing light is scattered significantly less than in the first region.