Definitions

1. adjective

Relating to or involving a lens or optical system in which the focal points are on opposite sides of the object being viewed or observed.

“The scientist used a contrafocal lens to study the properties of the newly discovered particle.”

2. noun

A lens or optical system in which the focal points are on opposite sides of the object being viewed or observed.

“The contrafocal arrangement allowed for more precise measurements of the celestial object’s characteristics.”