The story
The company was founded in 1947 by Karl Steiner, and the first product of the company was the Steinette camera. In 1955, the company changed focus to production of binoculars. In 1965, Steiner was awarded a contract with the West German Bundeswehr, which it supplied with the service binoculars called Steiner 8×30 FERO-D12 Bundeswehr Fernglas (German Army Binoculars) between 1966 and 1972. Steiner was the first company to produce nitrogen-filled binoculars. In 1989, Steiner-Optik received by its own account until then the world's largest order for military binoculars, which included the delivery of 72,000 M22 7×50 binoculars to the US Army. Other innovations by Steiner optics included the first binoculars with bearing compass and the first binoculars with laser protection filters.
From Wikipedia’s article on Steiner-Optik, shared under CC BY-SA 4.0.5