Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Electric eye

An electric eye is a photodetector used for detecting obstruction of a light beam. An example is the door safety system used on garage door openers that use a light transmitter and receiver at the bottom of the door to prevent closing if there is any obstruction in the way that breaks the light beam. The device does not provide an image; only the…

Examples & Overview

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Electric eye. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Examples

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Electric eye

Nodes13
Edges12
Triples5
Avg. degree1.85
Density0.153846
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Electric eye

Top relations

related to Examples · 4
Electric eye → Highway, In, IR, US
is a · 1
Electric eye → photodetector used for detecting obstruction of a light beam

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

light electric used eye device photodetector infrared 1931 system obstruction beam use modern systems first automatic door openers way lamps

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Electric eyeis aphotodetector used for detecting obstruction of a light beam0.90text
Electric eyerelated to ExamplesHighway0.60section
Electric eyerelated to ExamplesIn0.60section
Electric eyerelated to ExamplesUS0.60section
Electric eyerelated to ExamplesIR0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.