|
Date: |
|
Description: | Rectangular echelle reflection grating (10 x 5 inches) on glass substrate (135 x 265 mm) with cardboard box, 300 lines per mm, and 63� 26' ' blaze angle. Made by Bausch & Lomb, Rochester, New York State, USA in 1964, Cat. No. 35-53-32-45. Used at the University Observatory, Oxford. | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | diffraction grating - Echelon diffraction grating - reflection | Temporal: | 1964 | Source: | Science Museum | Creator: | Bausch and Lomb Inc. | Identifier: | 2001-693 | Go to resource |
|
|