Image: Fresnel Lens
Size of this preview: 450 × 600 pixels. Other resolution: 180 × 240 pixels.
Original image (3,024 × 4,032 pixels, file size: 3.15 MB, MIME type: image/jpeg)
Description: The Bivalve 3 1/2 order Fresnel lens, originally installed in 1903 and now restored to the lantern room.
Title: Fresnel Lens
Credit: Own work
Author: Novembersolstice
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: https://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes
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