Cat's Eye Hanging in Air
Captured in the Valencia College Precision Optics, Photonics, and Fiber lab in Osceola County, FL, USA, this image depicts the focal point generated by a transmission sphere in a Fizeau interferometer. Commonly called the "cat's eye" position by opticians and metrologists measuring the radius of an optics, the focal point of the HeNe laser is visible due to scattering from artificial fog.
—James Nathan, Waymack and Crew, Valencia College, Orlando, FL, USA
