Dalén light

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AGA light near Djurgården in Stockholm

A Dalén light is a flashing light produced from burning of

carbide gas
(acetylene), combined with a solar sensor which automatically operates the light only during darkness.

Overview

In the last quarter of the 19th century navigation buoys began to be illuminated, however at first the lights were fixed (continuous) and could be mistaken for ship's navigation lights.

Nobel prize in physics.[3] Gas was wasted however due to illumination during the day and subsequently Dalén developed the sun valve to shut off the flashes during daylight.[3]

The technology was a form of light source in

lighthouses from the 1900s through the 1960s, when electric lighting had become dominant.[4] Dalén later invented the AGA cooker in 1922 whilst recuperating from an accident with acetylene which blinded him.[3] The Carbide lamp was developed in the early 1900s. While the lamps proved useful in many applications, the problem of safely storing acetylene meant they needed regular refilling which constrained their use in applications such as lighthouses.[5]

Examples

Lighthouses using Dalén lighting have included:

References

  1. ISBN 978-0-540-07309-2
    .
  2. ^ Naish 1985, pp. 65–66.
  3. ^ a b c d Naish 1985, p. 66.
  4. ISBN 978-1-4613-4962-4.{{cite book}}: CS1 maint: location missing publisher (link
    )
  5. ^ "Gustaf Dalén - Beacon lighting". Tekniska museet. Retrieved 2022-09-29.
  6. ^ "Centenario del Faro Recalada a Bahía Blanca" [Centennial to Recalada a Bahía Blanca Lighthouse]. hidro.gov.ar (in Spanish). Archived from the original on 6 July 2011. Retrieved 11 August 2010.

External links


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