Fresnel lens (Bi-prism in metal holder)
Bi-prism in metal holder
- Object Number:
- 1971-562 Pt1
- type:
- fresnel lens
Exhibit to demonstrate Fresnel's bi-prism. Consists of light source, slit and bi-prism housed in metal case with eyepiece so that interference fringes can be seen.
Bi-prism in metal holder