Amici roof prism
Date: mid 20th Century
Inventory Number: 2007-1-0042
Classification: Prism
Subject:
Maker: American
Inventor: Giovanni Battista Amici (1786 - 1863)
Cultural Region:
Dimensions:
1.9 × 3.4 × 1.8 cm (3/4 × 1 5/16 × 11/16 in.)
Material:
Description:
This Amici roof prism has a roof edge along the long reflecting (hypotenuse) face of a regular right-angle prism. Some faces are painted black.
Signedunsigned
FunctionThe roof prism is used to erect an image and the bend the line of sight through a 90° angle. It is commonly found in elbow telescopes, terrestrial telescopes, and some binoculars.