Fresnel lighthouse optic
- Made:
- 1890-1900 in England and Borough of Birmingham
- manufacturer:
- Chance Brothers Limited
- inventor:
- Augustin Jean Fresnel and Georges Louis Leclerc
Ninety degrees, section of a fixed-lens (4th-order) lighthouse optic, 36 inches high, (internal crack in top prism) by Chance Brothers, Birmingham, England, c. 1895.
Details
- Category:
- Optics
- Object Number:
- 1958-102
- Materials:
- glass, metal (unknown), copper (alloy), brass (copper, zinc alloy) and putty
- Measurements:
-
overall: 915 mm x 440 mm x 310 mm, ,
- type:
- lighthouse lamps and optics
- credit:
- Stevenson, A.D.
