Warning Lamp Apparatus Light Coupling via End Face

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Solution Overview

Problem

Existing operating status warning lamp apparatuses with spherical caps require elaborate and costly arrangements of LEDs for all-round illumination, limiting design flexibility and increasing production costs due to complex geometric structures.

Innovation Solution

The warning lamp element is arranged on the end face of a radiating element with scattering means that deflect the light by approximately 90°, allowing for 360° radiation without the need for multiple printed circuit boards inside a hollow spherical cap, enabling novel design options and reducing space requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If hollow spherical cap structures with multiple LEDs are used for all-round illumination, then illumination coverage is improved, but device complexity and production cost increase

Engineering Contradiction:
Improveall-round illumination coverageVSAvoidarrangement of multiple LEDs on printed circuit boards
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The invention extracts the illumination function from the complex hollow spherical cap structure with multiple LEDs and concentrates it into a single LED positioned at the center of a solid transparent sphere. This simplifies the device by removing the need for multiple LEDs, printed circuit boards, and complex internal arrangements while maintaining all-round illumination coverage.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention merges multiple illumination sources (multiple LEDs) into a single illumination source (one central LED). The solid transparent sphere integrates the functions of multiple components (housing, light guide, diffuser) into one unified structure, reducing device complexity while achieving the same illumination effect.

Inventive Principle:
Principle #5Merging (Combining)

2Illumination intensity

If elaborate geometric structures are added to spherical caps to optimize light radiation, then illumination efficiency is improved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvelight radiation efficiencyVSAvoidmolding complexity of spherical caps
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

The invention uses a homogeneous solid transparent sphere without elaborate internal geometric structures. The uniform material composition and simple spherical geometry allow for straightforward molding processes, eliminating the need for complex mold designs while still achieving optimal light radiation through the inherent optical properties of the homogeneous structure.

Inventive Principle:
Principle #33Homogeneity

3Illumination intensity

If multiple printed circuit boards are arranged in tower fashion inside hollow spherical caps, then all-round illumination is achieved, but device complexity and production cost increase

Engineering Contradiction:
Improve360° illumination coverageVSAvoidarrangement of printed circuit boards
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The invention removes the printed circuit boards and multiple LED arrangements from the hollow spherical cap structure. By positioning a single LED at the center of a solid transparent sphere, the complex multi-board arrangement is extracted and replaced with a simple centralized configuration that achieves the same 360° illumination effect.

Inventive Principle:
Principle #2Taking out (Extraction)

4Shape

If hollow cylindrical spherical cap structures are used, then design flexibility is reduced, but production cost increases due to complex molding tools

Engineering Contradiction:
Improvehollow cylindrical spherical cap structureVSAvoidmolding tool complexity
Core Design Contradiction:
ShapeVSEase of manufacture

Solution Approach 1:

The invention adopts a homogeneous solid transparent sphere instead of a complex hollow cylindrical spherical cap. This simple geometric form can be produced using standard molding techniques without requiring elaborate or expensive specialized tools, significantly improving ease of manufacture while maintaining aesthetic appeal and functional performance.

Inventive Principle:
Principle #33Homogeneity

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 reduces design and production complexity, enabling cost-effective production of warning lamp apparatuses with flexible layout options and efficient light decoupling, while maintaining aesthetic demands.

Implementation Method 1

the radiating element has scattering means for scattering the warning light, as result of which the warning light enters the radiating element via the end face and can be deflected to the radiating area

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentUS9619978B2Operating status warning lamp apparatus
Publication Date: 2017.04.11 WERMA HLDG
  • US9619978B2 patent drawing
  • US9619978B2 patent drawing
  • US9619978B2 patent drawing

AI summary

An operating status warning lamp apparatus for visually indicating at least one operating status or a plurality of different operating statuses for a technical appliance such as a machine, an installation, a vehicle or the like having at least one warning lamp unit (1, 4), wherein the warning lamp unit (1, 4) has at least one warning lamp element (3) for producing warning light (6), wherein the warning lamp unit (1, 4) has a radiating element (1), having at least one warning lamp radiating area (4), for radiating the warning light (6), wherein the radiating element (1) has at least one end face (2) oriented transversely with respect to the warning lamp radiating area (4), is proposed that can be produced without great design involvement, at reasonable cost and using new layout options. The invention achieves this in that the warning lamp element (3) is arranged on the end face (2) for the purpose of coupling the warning light (6) into the radiating element (1) and in that the radiating element (1) has scattering means (5, 12, 15) for scattering the warning light (6), as result of which the warning light (6) enters the radiating element (1) via the end face (2) and can be deflected to the warning lamp radiating area (4).