Hugo Adolph (Adolph) Steinheil (1832–93)

German scientific-instrument maker and businessman. Qualified as an engineer, Munich, 1853. Worked in the Munich workshop of his father, Carl August von Steinheil, manufacturing optical and astronomical scientific instruments, from 1855; took over the business with his brother Eduard in 1865, trading under the name C. A. Steinheil Söhne.