One-Piece Shielded Luminescent Diode for Radiation Protection

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Solution Overview

Problem

Optoelectronic components face challenges in being protected against environmental influences such as extraneous light radiation and rainwater, and require simple mounting solutions.

Innovation Solution

The optoelectronic component incorporates a luminescence diode chip with a shielding mechanism, where the shielding is formed in one piece with other components, such as a connection carrier or reflector wall, to laterally surround the diode chip and reduce external radiation interference, enhancing mechanical stability and ease of assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a separate shield is attached to the optoelectronic component, then the shielding against extraneous radiation is achieved, but the assembly complexity and mechanical stability are reduced

Engineering Contradiction:
Improveprotection against extraneous radiationVSAvoidassembly complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The shield is merged with the connection carrier to form an integral one-piece structure. This eliminates the need for separate attachment of the shield to the optoelectronic component, thereby reducing assembly complexity while maintaining effective shielding against extraneous radiation.

Inventive Principle:
Principle #5Merging (Combining)

2Object-affected harmful factors

If a separate shield is attached to the optoelectronic component, then the shielding against extraneous radiation is achieved, but the mechanical stability is reduced

Engineering Contradiction:
Improveprotection against extraneous radiationVSAvoidmechanical stability
Core Design Contradiction:
Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

The shield is merged with the connection carrier to form an integral one-piece structure. This eliminates potential separation interfaces between the shield and the optoelectronic component, thereby enhancing mechanical stability while maintaining effective shielding against extraneous radiation.

Inventive Principle:
Principle #5Merging (Combining)

3Object-affected harmful factors

If the shield completely laterally surrounds the LED chip, then the shielding against extraneous radiation is maximized, but the mounting flexibility is reduced

Engineering Contradiction:
Improveprotection against extraneous radiationVSAvoidmounting flexibility
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The shield is designed to laterally surround the LED chip only at selected points rather than completely. This localized shielding approach provides sufficient protection against extraneous radiation from critical directions while maintaining mounting flexibility and adaptability to various installation environments.

Inventive Principle:
Principle #3Local quality

4Object-affected harmful factors

If multiple separate components are used for shielding, then the shielding effectiveness is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveprotection against extraneous radiationVSAvoidmanufacturing complexity
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The shield is merged with the connection carrier to form an integral one-piece structure. This eliminates the need for separate manufacturing and assembly of multiple shielding components, thereby reducing manufacturing complexity while maintaining effective shielding against extraneous radiation.

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

This design effectively shields the luminescence diode chip from extraneous radiation and environmental influences, improving the component's operational reliability and adaptability to various mounting locations while maintaining mechanical stability.

Implementation Method 1

the luminescence diode chip is suitable for generating electromagnetic radiation

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 2

the shielding is suitable for keeping the extraneous radiation away from the luminescence diode chip and/or other components of the optoelectronic component

Methodology Applied
Scientific EffectRadiation shielding: Absorption (EM radiation)

Data Source

PatentEP2329477B1Optoelectronic component
Publication Date: 2016.06.22 OSRAM OPTO SEMICON GMBH & CO OHG
  • EP2329477B1 patent drawingFigure 1A~1B
  • EP2329477B1 patent drawingFigure 1C
  • EP2329477B1 patent drawingFigure 2A~2B

AI summary

The invention relates to an optoelectronic component (10), comprising – at least one luminescent diode chip (1) which emits electromagnetic radiation (2) during the operation of the optoelectronic component, - at least one shield (3) against external radiation (4) which laterally surrounds the luminescent diode chip (1) in some regions only, wherein – each shield (3) is designed as one piece with a component (20, 30, 40, 50) of the optoelectronic component (10).