Coarse plane diffraction grating for infrared radiation

Made:
1960-1969 (estimated) in Great Malvern
Coarse plane diffraction grating for infrared radiation

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Coarse plane diffraction grating for infrared radiation
Science Museum Group
© The Board of Trustees of the Science Museum

Coarse plane diffraction grating for infrared radiation, 254 x 254 mm, ruled on a metal plate attached to an aluminium block, marked 'MADE BY RRE MALVERN' [Royal Radar Establishment Malvern] and '.004" PITCH 25º BLAZE ANGLE' on two edges of the block, glued into a hinged wooden case with a plastic name plate on top.

Details

Category:
Optics
Object Number:
2000-1454
Materials:
metal, aluminium, wood and plastic
Measurements:
case, overall: 44 x 305 x 310 mm
type:
diffraction grating - reflection
credit:
Imperial College of Science,Technology & Medicine (Spectroscopy Group)