Recent developments in precision radial grating manufacture

It was approximately two years ago that the Cranfield Unit for Precision Engineering (CUPE) established its own in-house facility for the manufacture of master radial gratings¹. This has been strengthened following the recent purchase of master radial and linear grating generating equipment from the National Engineering Laboratory, East Kilbride, and the transfer of technical knowledge to make the system operable. As a result CUPE is now is possession of two operable grating manufacturing facilities - a resist system (CUPE) and photographic emulsion system (ex-NEL).