Accession Number : ADD004600

Title :   Rapid Shutter Mechanism.

Descriptive Note : Patent,


Personal Author(s) : Ely,Richard E

Report Date : 31 May 1977

Pagination or Media Count : 3

Abstract : An electromagnetic beam propagator includes a shutter device having a member with an aperture for passage therethrough of a high energy beam. A pair of plates are slidably disposed on the member and oppositely secured to respective pistons with a link secured therebetween to restrain the plates in overlapped relation while a control applies an initial pressure to the pistons to retain the plates in position covering the aperture. The control increases the piston pressure to apply to the link a stress approaching the yield strength thereof as the energy of the beam arrives at normal value and subsequently further increases the piston pressure for rupture of the link and rapid operation of the pistons to provide substantially step function exit of the beam from the propagator and to avoid disintegration of the plates by accumulated energy of the beam. (Author)

Descriptors :   *Patents, *Shutters(Optics), Quick reaction, High energy, Beams(Electromagnetic), Mechanical working

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE