Pretema Spectromat FS 3A spectrophotometer for measuring the reflectance of a surface as a function of wavelength (colour) selected by 33 interference filters, for calculating CIE tristimulus values, and printing the results. Made by Pretema AG, Riedstrasse 8, CH-8953 Dietikon/ZH, Birmensdorf, Zurich, Switzerland, 1965-1969.
Details
- Category:
- Optics
- Object Number:
- 1993-1596
- type:
- spectrophotometer
- credit:
- English Heritage (Fortress Hse)
