A concave lens is thinner at the centre than at the edges. Concave lenses are thinner at the middle. Rays of light that pass through the lens are spread out (they diverge). A concave lens is a diverging lens. When parallel rays of light pass through a concave lens the refracted rays diverge so that they appear to come from one point called the principal focus. The distance between the principal focus and the centre of the lens is called the focal length.
Labels: 5'8, B, Big Sean, big sean height, Celebrities, Celebrity, Height, Heights, Man, Music Star, Rapper.
Credit: Jared Wickerham Getty Images Sport Getty Images. Earl Boykins, at 5 feet 5 inches, was the shortest player in the NBA from 2001 until his retirement in 2012. He is the second-shortest NBA player of all time, behind Tyrone Muggsy Bogues, who is 5 feet 3 inches tall. Perhaps the most famous short NBA player was Spud Webb, who won an NBA slam dunk contest in spite of being only 5 feet 7 inches tall.