Replica concave diffraction grating

Made:
1913, 14 November
designer:
Thomas Thorp
Replica concave diffraction grating, area 45 x 15 mm approx

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Replica concave diffraction grating, area 45 x 15 mm approx
Science Museum Group
© The Board of Trustees of the Science Museum

Replica concave diffraction grating, area 45 x 15 mm approx., made by sticking a metal foil replica grating on the back of a concave glass disc. Markings scratched on the protective black paint on the back of the disc read 'Thorp's replica of grating / about 15100 lines per / inch / T. T. / 14/11/13'. The disc clips into a square wooden block.

Details

Category:
Optics
Object Number:
2000-1464
Materials:
glass, metal foil, wood and brass
Measurements:
mounting block: 16 x 70 x 70 mm
glass disc: 3 x 51 mm
type:
diffraction grating - reflection
credit:
Imperial College of Science,Technology & Medicine (Spectroscopy Group)