Assertion: abbe koenig prism | /r/CapableOf | patent by carl zeiss
Facets:
value: in 1905
type: TEMPORAL
Source sentences:
text: Most roof prism binoculars use either the Abbe-Koenig prism (named after Ernst Karl Abbe and Albert Koenig and patented by Carl Zeiss in 1905) or the Schmidt-Pechan prism (invented in 1899)