Concave diffraction grating on speculum metal, gra

Made:: 1910-1948 (estimated) in London

maker:: Adam Hilger Limited

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Concave diffraction grating on speculum metal, grating area 27 x 19 mm, on black enamelled metal stand with three levelling feet, fine adjustment for setting grating vertical, and sliding metal cover for grating, signed 'ADAM HILGER LTD / LONDON', estimated date 1910-1948.

Details

Category:: Optics

Object Number:: 2000-1451

Materials:: metal, speculum metal

type:: diffraction grating - reflection

taxonomy:

furnishing and equipment
tools & equipment
optical instrument
optical instrument component
diffraction grating

credit:: Imperial College of Science,Technology & Medicine (Spectroscopy Group)

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