Sector Light Lens Segmentation for Navigation

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Solution Overview

Problem

Existing LED sector lights for navigation are bulky, heavy, and inefficient due to omnidirectional light emission, leading to light scatter and difficulty in achieving sharp sector boundaries.

Innovation Solution

A sector light design featuring a light source assembly with opaque dividing elements, multiple LEDs, and optical lenses, divided into circumferential sections to project light into specific sectors with minimal overlap, enhancing visibility and reducing bulkiness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If omnidirectional LED sector lights are used, then energy efficiency and longevity are improved, but device complexity and bulkiness increase due to the need for multiple tiers and omnidirectional light emission

Engineering Contradiction:

Improveenergy efficiencyVSAvoiddevice complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The light source assembly is divided into circumferential sections separated by opaque dividing elements, with each section containing a light source and optical lens. This segmentation allows directional light projection into specific sectors while maintaining energy efficiency, eliminating the need for bulky omnidirectional structures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different circumferential sections of the light source assembly have different light emission characteristics, with each section optimized for its specific sector. This local quality approach allows precise control over light direction and intensity in different sectors without requiring multiple tiers, reducing device complexity.

Inventive Principle:

Principle #3Local quality

2Illumination intensity

If omnidirectional light emission is used, then light coverage is improved, but light scatter increases and visibility range is reduced

Engineering Contradiction:

Improvelight coverageVSAvoidlight scatter

Core Design Contradiction:

Illumination intensityVSLoss of energy

Solution Approach 1:

The patent extracts and eliminates the omnidirectional light emission characteristic that causes light scatter. By using directional light sources with optical lenses in segmented circumferential sections, only the necessary light in specific sectors is emitted, removing the harmful scattered light while maintaining adequate coverage.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent converts the potential harm of light scatter into a benefit by using opaque dividing elements to block unwanted light directions. The segmented structure ensures that light is precisely directed into intended sectors, transforming what would be scattered waste light into focused, useful illumination with improved visibility range.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Speed

If TIR lenses are used to collimate light, then light directionality is improved, but manufacturing precision and light cut-off sharpness remain insufficient with uncertainty areas greater than a few degrees

Engineering Contradiction:

Improvelight directionalityVSAvoidlight cut-off sharpness

Core Design Contradiction:

SpeedVSManufacturing precision

Solution Approach 1:

The patent merges multiple functional elements - light sources, optical lenses, and opaque dividing elements - into an integrated light source assembly. This combination achieves sharp light cut-off and precise sector boundaries by coordinating the functions of all elements, overcoming the limitations of TIR lenses alone and reducing angular uncertainty to minimal levels.

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

The solution provides a compact, energy-efficient sector light with improved visibility and reduced light scatter, allowing for clear differentiation between safe and unsafe sectors over long distances.

Implementation Method 1

each circumferential section containing a light source and an optical lens arranged such that the optical lens collects and outwardly projects the light emitted by the light source into a sector

Methodology Applied

Scientific EffectLight collection and projection: Lens

Implementation Method 2

The light source assembly is divided into circumferential sections, each circumferential section being separated by the opaque dividing elements

Methodology Applied

Scientific EffectLight blocking: Absorption (EM radiation)

Data Source

PatentUS20250146635A1Sector light and lens

Publication Date: 2025.05.08 SEALITE

AI summary

The present invention discloses a sector light, said sector light having at least one tier including a light source assembly comprising opaque dividing elements, two or more light sources, and two or more optical lenses; wherein the light source assembly is divided into circumferential sections, each circumferential section being separated by the opaque dividing elements, and each circumferential section containing a light source and an optical lens arranged such that the optical lens collects and outwardly projects the light emitted by the light source.