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Tory Island 1887 Barbier & Fenestre hyper-radial optic

Hyper-radial lenses manufactured by Barbier & Fenestre for Tory Island in 1887. Chance Brothers reconstructed the apparatus in 1922/1923, creating the Tory-retained and Mew Island branches.

Evidence note

Official Irish Lights Tory context plus hyper-radial reference material support the original optic and split-lineage case study.

Source Evidence

Heritage Journey

The Great Light

When One Light Became Two

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Identity role

  • Root identityThe Great Light

    Root identity for The Great Light journey. This asset represents the original Tory Island hyper-radial optic lineage before reconstruction and split.

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Direct relationships

Reviewed links from this object to a station, place, manufacturer, collection, or another heritage identity.

  • Has derivative
    The Great Light / Mew Island hyper-radial optic component1923 – 1928accepted

    The Mew Island / Great Light component is derived from the original Tory Island hyper-radial optic.

  • Has derivative
    Tory Island retained hyper-radial optic component1923 – 1928accepted

    The Tory-retained biform component is derived from the original Tory Island hyper-radial optic.

  • Historically part of
    Tory Island Lighthouse1887 – 1923accepted

    The original hyper-radial optic was historically part of the Tory Island Lighthouse optical system before reconstruction.

  • Installed at
    Tory Island Lighthouse1887accepted

    The original hyper-radial optic was installed in the Tory Island Lighthouse context in 1887.

  • Installed in
    LUX-LH-000554draft

    Tory Island Chance Brothers hyper-radial optic installed at host LUX-LH-000554

  • Installed in
    Tory Island Lighthousedraft

    Tory Island Chance Brothers hyper-radial optic installed at host LUX-PLACE-000004

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Connections and discovery

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Optional discovery

8 related objects

These reviewed objects are reached within two graph steps through a shared manufacturer, place, or related identity. They are discovery context, not part of this object's own lifecycle.

Shared place

Chance Brothers Smethwick Works

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Shared place

Chance Brothers Smethwick Works

View full related network map (18 graph objects)
installed in; installed at; historically part of; removed from4installed inmanufactured bymanufactured byinstalled atmanufactured bymanufactured bymanufactured bymanufactured bymanufactured bymanufactured bymanufactured bymanufactured bymanufactured byreconstructed by; moved to2split intosplit intoderived fromderived frominstalled atreconstructed byreconstructed byinstalled at; removed from2restored byTory Island 1887 Barbier & Fenestre hyper-radial opticTory Island 1887Barbier & Fenestrehyper-radial opticlensLismore Lighthouse: Chance Brothers fourth-order fixed lensLismoreLighthouse:Chance BrotherslensPencarrow Head Lighthouse Chance Brothers lensPencarrow HeadLighthouse ChanceBrothers lenslensCasquets 1877 first-order Chance Brothers opticCasquets 1877first-orderChance BrotherslensNorah Head Chance Bros first-order bivalve dioptric Fresnel lensNorah Head ChanceBros first-orderbivalve dioptriclensNorah Head original Chance Bros cast-iron and copper lantern houseNorah Headoriginal ChanceBros cast-ironlanternCape Byron Chance Bros red sector lightCape Byron ChanceBros red sectorlightlensTory Island retained hyper-radial optic componentTory Islandretainedhyper-radiallensThe Great Light / Mew Island hyper-radial optic componentThe Great Light /Mew Islandhyper-radiallensTory Island 1862 first-order fixed opticTory Island 1862first-order fixedopticlensCape Byron Chance Brothers lanternCape Byron ChanceBrothers lanternlanternLUX-LH-000554LUX-LH-000554lighthouseTory Island LighthouseTory IslandLighthousehistorical_locationChance Brothers Smethwick WorksChance BrothersSmethwick Workshistorical_locationMew Island LighthouseMew IslandLighthousehistorical_locationIrish Lights workshop, Dun LaoghaireIrish Lightsworkshop, DunLaoghairestorageThe Great Light, BelfastThe Great Light,Belfastdisplay_siteBarbier & Fenestre works, ParisBarbier &Fenestre works,Parishistorical_location
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Rights & Attribution

Content License

Original editorial content on this page: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International. See Rights & Reuse.

Media Rights

No published media with documented rights on this record.

Attribution

"Tory Island 1887 Barbier & Fenestre hyper-radial optic" · LUX-ASSET-000607 · © LUX143 · Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International · https://light.lux143.org/heritage-assets/LUX-ASSET-000607/

Citation

LUX Light Archive, Heritage asset: "Tory Island 1887 Barbier & Fenestre hyper-radial optic", LUX-ASSET-000607, https://light.lux143.org/heritage-assets/LUX-ASSET-000607/, accessed 2026-08-10, archive v0.24.362.