High speed shutter mechanism for a light beam

Details High speed shutter mechanism for a light beam High speed shutter mechanism for a light beam

1990-04-24

1991-07-16

Dzierzynski, Paul M.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

2504981, G02B 2602

Patent

active

050320050

ABSTRACT:
A high speed beam shutter having a flat, flexible, reflective ferromagnetic blade oriented with a lengthwise direction of the blade at approximately a right angle to the beam path and tilted up in the widthwise direction so as to be oriented at approximately 45.degree. to the beam path to reflect the beam downward to a light trap. The blade intersects the light path in either its straight or flexed position, but not both, and is flexed by means of an electromagnet. The electromagnet has an elongated core with J-shaped cross-section with the J-arm and J-hook ends defining magnetic poles. The blade, electromagnet and light trap may be housed in a case with side apertures defining the beam path. Both conductive and water cooling of the blade with a beam stop, and cooling of the light trap and electromagnet may be provided. A two blade, two electromagnet embodiment is described.

REFERENCES:
patent: 4082435 (1978-04-01), Zeitz
patent: 4170731 (1979-10-01), Howell et al.
patent: 4332450 (1982-06-01), Griffith
patent: 4415231 (1983-11-01), Kaczeusky et al.
patent: 4799767 (1989-01-01), Woodruff
patent: 4946256 (1990-08-01), Woodruff

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