Photographic replica plane diffraction grating
- Made:
- 1900-1949 (estimated)
Photographic replica plane diffraction grating, area 27 x 27 mm, on glass plate, wrapped in a piece of paper marked in manuscript 'Photograph copy of / Spectrum Grating / 6000 lines per inch / Dr. . . . 's / Keep dry & do not rub / the film side'. [The three letters of the name are indecipherable.]
Details
- Category:
- Optics
- Object Number:
- 2000-1462
- Materials:
- glass, photographic emulsion and paper
- Measurements:
-
glass plate: 2.5 x 61 x 54 mm
- credit:
- Imperial College of Science,Technology & Medicine (Spectroscopy Group)
