File:Inner Range Light Lens (7572655592).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (1,280 × 720 pixels, file size: 521 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description

This video shows the original Duluth South Pier Inner Range Light fresnel lens in motion. It rotated around the light source and has flash panels that focused the light into distinct beams. This made the light appear to flash when viewed from a distance.

Originally, the mechanism that rotated the lens was a clockworks that worked very much like a large grandfather clock. Today it is rotated by an electric motor. The clockworks is still intact -- it is just no longer used.

This lens is on display in the Canal Park Marine Museum in Duluth, MN. It was removed from the lighthouse in 1995 due to deterioration of the lens. It was restored and placed on display inside the museum. The lighthouse now used a plastic fresnel lens that is rotated by an electric motor.
Date
Source Inner Range Light Lens
Author Pete Markham from Loretto, USA

Licensing

[edit]
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This image, originally posted to Flickr, was reviewed on 4 December 2020 by the administrator or reviewer Rodrigolopes, who confirmed that it was available on Flickr under the stated license on that date.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current06:18, 4 November 2020Thumbnail for version as of 06:18, 4 November 20201,280 × 720 (521 KB)JotaCartas (talk | contribs)Transferred from Flickr via #flickr2commons

The following page uses this file: