![US Navy (USN) Interior Communications Electrician Third Class (IC3) Jason Kerce conducts maintenance on the Fresnel Lens Optical Landing System (FLOLS, the meatball), a systems of lights that serve as a visual US Navy (USN) Interior Communications Electrician Third Class (IC3) Jason Kerce conducts maintenance on the Fresnel Lens Optical Landing System (FLOLS, the meatball), a systems of lights that serve as a visual](https://cdn10.picryl.com/photo/2003/03/20/us-navy-usn-interior-communications-electrician-third-class-ic3-jason-kerce-8ac680-1600.jpg)
US Navy (USN) Interior Communications Electrician Third Class (IC3) Jason Kerce conducts maintenance on the Fresnel Lens Optical Landing System (FLOLS, the meatball), a systems of lights that serve as a visual
![Chris Cavas on Twitter: "@dafengcao The optical landing system to port doesn't seem to be on." / Twitter Chris Cavas on Twitter: "@dafengcao The optical landing system to port doesn't seem to be on." / Twitter](https://pbs.twimg.com/media/Ds3LJpfUwAAUQXY.jpg)
Chris Cavas on Twitter: "@dafengcao The optical landing system to port doesn't seem to be on." / Twitter
![The Fresnel lens optical landing system aboard the nuclear-powered aircraft carrier USS DWIGHT D. EISENHOWER (CVN 69) - PICRYL Public Domain Search The Fresnel lens optical landing system aboard the nuclear-powered aircraft carrier USS DWIGHT D. EISENHOWER (CVN 69) - PICRYL Public Domain Search](https://cdn10.picryl.com/photo/1985/01/01/the-fresnel-lens-optical-landing-system-aboard-the-nuclear-powered-aircraft-b0bca5-1024.jpg)
The Fresnel lens optical landing system aboard the nuclear-powered aircraft carrier USS DWIGHT D. EISENHOWER (CVN 69) - PICRYL Public Domain Search
![A close-up view of the Fresnel Lens Optical Landing System (FLOLS) on the deck edge assembly aboard the aircraft carrier USS JOHN F. KENNEDY (CV-67) during Fleet Ex 1-90 - NARA & A close-up view of the Fresnel Lens Optical Landing System (FLOLS) on the deck edge assembly aboard the aircraft carrier USS JOHN F. KENNEDY (CV-67) during Fleet Ex 1-90 - NARA &](https://cdn10.picryl.com/photo/1990/01/01/a-close-up-view-of-the-fresnel-lens-optical-landing-system-flols-on-the-deck-11e4b5-1024.jpg)
A close-up view of the Fresnel Lens Optical Landing System (FLOLS) on the deck edge assembly aboard the aircraft carrier USS JOHN F. KENNEDY (CV-67) during Fleet Ex 1-90 - NARA &
![Call the Ball': The Optical Mirror Landing System | Naval History Magazine - August 2019 Volume 33, Number 4 Call the Ball': The Optical Mirror Landing System | Naval History Magazine - August 2019 Volume 33, Number 4](https://www.usni.org/sites/default/files/Arms-NH-JA-19%201.jpg)