Collection of glass prisms
Nine prisms. 1) composite equilateral prism made out of six different types of glass 2) composite equilateral prism made out of three different types of glass 3) equilateral prism 4) regular rightangled prism 5) assymetrical right angled prism 6) two right angled prisms cemented together, one symmetrical, one assymetrical 7) sequence of three Porro-type prisms showing three stages of construction. [Five are made by Chance Brothers of Birmingham], late 19th century (Wellcome B885);
- Measurements:
-
overall: x x , , .355kg
- Object Number:
- 1984-1340/1
- type:
- prism- optical , porro prism , erecting prism and porro–abbe prism
- Image ©
- The Board of Trustees of the Science Museum