Rectangular reflection grating (8 x 6 inches) on glass substrate (220 x 170 mm) with cardboard box

Made:
1964 in Rochester
maker:
Bausch and Lomb Inc

Rectangular reflection grating (8 x 6 inches) on glass substrate (220 x 170 mm) with cardboard box , 600 lines per mm, and 28º 41' ' blaze angle. Made by Bausch & Lomb, Rochester, New York State, USA in 1964, Cat. No. 35-53-28-55, Serial No. 921-5. Used at the University Observatory, Oxford.

Details

Category:
Astronomy
Object Number:
2001-691
Materials:
glass, cardboard and complete
Measurements:
overall (case): 100 x 300 x 280 mm
type:
diffraction grating - reflection
credit:
University of Oxford (Dept of Physics)