» Berek microphotometer (0708)
Immagini
DESCRIPTION
Exhibit 708 is a microphotometer set to measure the luminous intensity of microscopic samples or microscopic areas of larger objects. It was designed to be inserted in an optical microscope to measure the optical intensity either by transmission or reflection. This set, intended for metallurgic research, was constructed by Leitz according to a design by Max Berek (1886-1949). It is conserved in a felt-lined case in which are present:
- Berek microphotometer Photo: 1,2,3
- Black cylinder (Length 195 mm) Photo: 4
- bBack cylinder (Length 75 mm) Photo: 4
- i Illuminator Photo: 5
- L-shaped accessory with rotating lens Photo: 6
- Cylindrical lens with support Photo: 7
- Lens holder Foto: 8
- Lens cover Foto: 9
Exhibit 435, acquired at the same time, is an accessory of the Leitz microscope (now missing) on which the microphotometer was mounted for observing with transmitted light.
BIBLIOGRAPHY
- [1] M.N.Short - Microscopic determination of the ore minerals - Geological Survey Bulletin 914 - University of Michigan Libraries 1940
Dati Catalografici
| Data di costruzione: | terza decade secolo XX |
|---|---|
| Data di carico: | 1934-10-25 |
| Nr. Inventario: | 450 (Consorzio Univ. di Torino) |
| Costruttore: | E. Leitz |
| Materiale: | ferro |
| Dimensioni: | Cassetta 27,5 cm x 18 cm x 15 cm |
| Conservazione: | buono (La cassetta ha la stoffa scollata, all'interno un supporto è scollato, e mancano dei pezzi) |