Lens used in lighthouses WSJ Crossword Clue
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explanationWSJ Crossword January 31 2026 Answers
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Frequently Asked Questions About This Clue
The most common and recent 7-letter answer for "Lens used in lighthouses" is FRESNEL.
The clue refers to a specific type of lens designed by Augustin-Jean Fresnel, which is known for its ability to capture more oblique light from a light source, thereby allowing the light to be visible over greater distances. This design is commonly used in lighthouses to project light far out to sea.
This clue was last seen in the WSJ Crossword on January 31, 2026.
A Fresnel lens is a type of compact lens originally developed for lighthouses to focus light into a beam.
The clue “Lens used in lighthouses” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated January 31 2026, the definitive 7-letter answer is: FRESNEL.
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