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Lux: Legacy, Applications & Measurement

The lux (symbol: lx) is the unit of illuminance, or luminous flux per unit area, in the International System of Units (SI). It is equal to one lumen per square metre. In photometry, this is used as a measure of the irradiance, as perceived by the spectrally unequally responding human eye, of light that hits or passes through a surface. It is analogous to…

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Lux topic overview

The analysis highlights Legacy, Applications and Measurement as prominent areas in the source structure around Lux.

Related topics
42
Source areas
5
Connected nodes
47
Extracted relationships
22
Concept neighborhoods
24
Bridge connections
47

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Explanation · 15 topics
Overview · 13 topics
Use in video-camera specifications · 6 topics
Non-SI units of illuminance · 5 topics
Legacy Unicode symbol · 3 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

CGS units
10−4 ph
SI base units
cd⋅sr⋅m−2
Symbol
lx
Unit of
illuminance
Unit system
SI
US customary units
0.0929 fc

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Explanation

Use in video-camera specifications

Non-SI units of illuminance

Legacy Unicode symbol

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.

How Lux connects Entity context

The extracted context around Lux shows recurring relationship patterns in the source. For example, Lux → American, English, One, SI, Since, The Another extracted example is Lux → Like, The, There, W/m2. Use these groups to spot repeated connection types before inspecting the individual relationships.

Lux

Top relations

related to Non-SI units of illuminance · 6
Lux → American, English, One, SI, Since, The
related to Relationship between illuminance and irradiance · 4
Lux → Like, The, There, W/m2
related to Illuminance · 2
Lux → Illuminance, One
related to Use in video-camera specifications · 2
Lux → Specifications, Still
CGS units · 1
Lux → 10−4 ph
SI base units · 1
Lux → cd⋅sr⋅m−2
Symbol · 1
Lux → lx
Unit of · 1
Lux → illuminance
Unit system · 1
Lux → SI
US customary units · 1
Lux → 0.0929 fc

Important terminology

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

Important terminology

illuminance light per one surface unit units luminous si function lx source area luminosity square lumen flux human irradiance wavelength

Lux relationships Subject–Predicate–Object triples

TTTA extracted 22 structured relationships around Lux. Examples in this analysis include Lux → CGS units → 10−4 ph and Lux → SI base units → cd⋅sr⋅m−2. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
LuxCGS units10−4 ph1.00infobox
LuxSI base unitscd⋅sr⋅m−21.00infobox
LuxSymbollx1.00infobox
LuxUnit ofilluminance1.00infobox
LuxUnit systemSI1.00infobox
LuxUS customary units0.0929 fc1.00infobox
camcordersinstance ofUse in video-camera specificationsSpecifications for video cameras0.80text
surveillance cameras often include a minimal illuminance level in lux at which the camera will record a satisfactory imageinstance ofUse in video-camera specificationsSpecifications for video cameras0.80text
Luxrelated to IlluminanceIlluminance0.60section
Luxrelated to IlluminanceOne0.60section
Luxrelated to Non-SI units of illuminanceThe0.60section
Luxrelated to Non-SI units of illuminanceEnglish0.60section

Related concept clusters Concept neighborhoods

The concept neighborhoods around Lux bring nearby vocabulary together. In this analysis, examples include Illuminance, Unit and One. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Lux
    • Illuminance
    • Unit
    • One
    • Units
    • Per
    • Lumen
    • Si
    • Flux
    • Square
    • Area
    • Luminous
    • Symbol
  • lux
    • Illuminance
    • Unit
    • One
    • Units
    • Per
    • Lumen
    • Si
    • Flux
    • Square
    • Area
    • Luminous
    • Symbol
  • illuminance
    • Lux
    • Flux
    • Luminous
    • Area
    • Spread
    • One
    • Surface
    • Measure
    • Si
    • Lx
    • Unit
    • Units
  • luminous flux
    • Area
    • Flux
    • Luminous
    • Spread
    • Lumen
    • Illuminance
    • Measure
    • Si
    • Given
    • Units
    • Unit
    • Lux
  • watt per square metre
    • Square
    • Watt
    • Metre
    • Per
    • Lumens
    • Radiometric
    • Lumen
    • One
    • Spread
    • Unit
    • Equal
    • Irradiance
  • light
    • Surface
    • Source
    • Per
    • Measure
    • Wavelength
    • Wavelengths
    • Given
    • Illumination
    • Lumens
    • Luminous
    • One
    • Visible
  • fluorescent light
    • Surface
    • Source
    • Per
    • Measure
    • Wavelength
    • Wavelengths
    • Given
    • Illumination
    • Lumens
    • Luminous
    • One
    • Visible
  • solar illuminance constant
    • Lux
    • Flux
    • Luminous
    • Area
    • Spread
    • One
    • Surface
    • Measure
    • Si
    • Lx
    • Unit
    • Units

Connections between topic areas Semantic bridges

For Lux, one of the stronger structural bridges in this analysis connects Lux with Explanation. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Lux — Explanation · splits 32 ⟂ 16
Lux — Overview · splits 34 ⟂ 14
Lux — Use in video-camera specifications · splits 41 ⟂ 7
Lux — Non-SI units of illuminance · splits 42 ⟂ 6
Lux — Legacy Unicode symbol · splits 44 ⟂ 4

Map overview Semantic statistics

Lux

Nodes48
Edges47
Triples22
Avg. degree1.96
Density0.041667
Components1

Source & methodology

TTTA analyzes the structure around Lux to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Legacy, Applications & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Lux · EN edition · Analysis: TopicsToTalkAbout

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