Usually referred to as The Copeland Streak Retinoscope. The streak retinoscope was introduced by Copeland in the early 1920s. He invented it after having dropped an original Wolff spot retinoscope on the floor and damaged the bulb filament. When reexamining the schematic eye that he was working with, he noted a difference in the reflexes. From this observation he went on to design ”his” retinoscope and the streak retinoscopic technique that is taught today. He patented his design in 1927. Copeland’s instrument was a unique design that was not improved upon for 40 years, and then by Copeland himself.