luminous transmittance
type: Thing
description: ratio of transmitted to incident luminous flux
additional property: PropertyValue
  property ID: P279
  value: physical quantity
additional property: PropertyValue
  property ID: P279
  value: dimensionless quantity
additional property: PropertyValue
  property ID: P279
  value: photometric quantity
additional property: PropertyValue
  property ID: P1343
  value: ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation
additional property: PropertyValue
  property ID: P1889
  value: transmittance
additional property: PropertyValue
  property ID: P2534
  value: \tau_{\mathrm{v}} = \frac{\Phi_{\mathrm{v}, \mathrm{t}}}{\Phi_{\mathrm{v}, \mathrm{m}}}
additional property: PropertyValue
  property ID: P4020
  value: 1
additional property: PropertyValue
  property ID: P6104
  value: WikiProject Mathematics
additional property: PropertyValue
  property ID: P7235
  value: \tau_{\mathrm{v}}
additional property: PropertyValue
  property ID: P7235
  value: \Phi_{\mathrm{v}, \mathrm{t}}
additional property: PropertyValue
  property ID: P7235
  value: \Phi_{\mathrm{v}, \mathrm{m}}
additional property: PropertyValue
  property ID: P7431
  value: LuminousTransmittance
additional property: PropertyValue
  property ID: P7973
  value: \tau_{\mathrm{v}}
additional property: PropertyValue
  property ID: P8111
  value: 1
confidence:
  popularity graph score:
    score: 0.0
    score pct: 0
    tier: long_tail
    components:
      sitelinks: 0
      sitelinks norm: 0.0
      unique citations: 1
      unique citations norm: 0.0
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 0
  unique citations: 1
  monthly pageviews: 0
  yearly pageviews: 0
  tier: long_tail
claims:
  P279:
    value: Q107715
    source count: 0
    confidence: 0.0
    value label: physical quantity
  P279:
    value: Q126818
    source count: 0
    confidence: 0.0
    value label: dimensionless quantity
  P279:
    value: Q4492214
    source count: 0
    confidence: 0.0
    value label: photometric quantity
  P1343:
    value: Q80232369
    source count: 0
    confidence: 0.0
    value label: ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation
  P1889:
    value: Q1427863
    source count: 0
    confidence: 0.0
    value label: transmittance
  P2534:
    value: \tau_{\mathrm{v}} = \frac{\Phi_{\mathrm{v}, \mathrm{t}}}{\Phi_{\mathrm{v}, \mathrm{m}}}
    source count: 1
    confidence: 0.2
  P4020:
    value: 1
    source count: 0
    confidence: 0.0
  P6104:
    value: Q8487137
    source count: 0
    confidence: 0.0
    value label: WikiProject Mathematics
  P7235:
    value: \tau_{\mathrm{v}}
    source count: 0
    confidence: 0.0
  P7235:
    value: \Phi_{\mathrm{v}, \mathrm{t}}
    source count: 0
    confidence: 0.0
  P7235:
    value: \Phi_{\mathrm{v}, \mathrm{m}}
    source count: 0
    confidence: 0.0
  P7431:
    value: LuminousTransmittance
    source count: 0
    confidence: 0.0
  P7973:
    value: \tau_{\mathrm{v}}
    source count: 0
    confidence: 0.0
  P8111:
    value: Q199
    source count: 1
    confidence: 0.2
    value label: 1
citations:
  source: ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation
  stated in qid: Q80232369
meta:
  wikidata id: Q84935567
  domain: general
  level: standard
  html url: https://4ort.xyz/entity/luminous-transmittance
  markdown url: https://4ort.xyz/entity/luminous-transmittance.md
  facts url summary: https://4ort.xyz/entity/luminous-transmittance/facts.json
  facts url standard: https://4ort.xyz/entity/luminous-transmittance/facts.json
  facts url full: https://4ort.xyz/entity/luminous-transmittance/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-23T12:08:48.381558Z
  entity updated at: 2026-05-07T12:56:24.458635+00:00Z
  entity created at: 2026-05-07T12:56:24.458635+00:00Z