heritage asset · lens
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
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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Each connection follows reviewed archive relations and evidence.
Heritage Journey
The Great Light
Follow The Great Light Heritage Journey
See the evidence
- Reason code
- same_asset_heritage_journey
- Evidence
- Accepted
- Path
- Journey membership
Heritage asset
Tory Island retained hyper-radial optic component
Later split into a Tory-retained component
See the evidence
- Reason code
- asset_split_from_same_object
- Evidence
- Accepted
- Path
- HERITAGE-REL-000033
Heritage asset
The Great Light / Mew Island hyper-radial optic component
Later split into the Mew Island / Belfast component
See the evidence
- Reason code
- asset_split_from_same_object
- Evidence
- Accepted
- Path
- HERITAGE-REL-000034
Follow the continuity
Cross-entity routes follow the same governed relations as entity pages, ordered as one readable path.
- See how this identity moved through timeThe Great Light — One Optic Became Two
Direct relationships
Reviewed links from this object to a station, place, manufacturer, collection, or another heritage identity.
- Has derivativeThe 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 derivativeTory Island retained hyper-radial optic component1923 – 1928accepted
The Tory-retained biform component is derived from the original Tory Island hyper-radial optic.
- Historically part ofTory Island Lighthouse1887 – 1923accepted
The original hyper-radial optic was historically part of the Tory Island Lighthouse optical system before reconstruction.
- Installed atTory Island Lighthouse1887accepted
The original hyper-radial optic was installed in the Tory Island Lighthouse context in 1887.
- Manufactured byBarbier & Fenestre works, Paris1887accepted
Barbier & Fenestre manufactured the original Tory Island hyper-radial lenses in 1887.
- Moved toChance Brothers Smethwick Works1923 – 1928accepted
The original Tory optic was sent to Chance Brothers in Smethwick for reconstruction.
Show 4 more direct relationships
- Reconstructed byChance Brothers Smethwick Works1922 – 1923accepted
Chance Brothers reconstructed the Barbier & Fenestre Tory apparatus in 1922/1923.
- Removed fromTory Island Lighthouse1923 – 1928accepted
The original Tory optic was removed from its original configuration before reconstruction into two biform optics.
- Split intoThe Great Light / Mew Island hyper-radial optic component1923 – 1928accepted
The Mew Island / Great Light component derives from the divided Tory Island hyper-radial optic.
- Split intoTory Island retained hyper-radial optic component1923 – 1928accepted
One derived biform component continued the Tory Island optic lineage.
Connections and discovery
View direct connection graph (10 objects)
Data and downloads
Open lifecycle JSON · Open graph JSON · Open related lifecycle JSON · Open related graph JSON
Story Projects
Source-grounded narrative packs connected to this object.
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 2026-08-13, archive v0.24.412.