Segment of First Order Fresnel Lens

Name/Title

Segment of First Order Fresnel Lens

Entry/Object ID

1987.01.1508

Description

Segment of a lighthouse lens, known as a first-order Fresnel lens. The lens segment consists of a curved, pyramid-shaped crystal prism. This lens segment was reportedly found underwater near Key West, Florida, by William and Thomas Ford, allegedly following the 1909 storm that destroyed the lighthouse lens. The fragments are believed to have been scattered offshore as a result of the disposal of the damaged lens.

Collection

Key West Lighthouse & Keeper's Quarters Collection

Made/Created

Date made

1910

Lexicon

Nomenclature 4.0

Nomenclature Primary Object Term

Lens

Nomenclature Class

Optical T&E

Nomenclature Category

Category 05: Tools & Equipment for Science & Technology

Dimensions

Height

4 in

Width

3 in

Depth

20 in

Condition

Reason for Exam

Inventory

Overall Condition

Good