Multipass illumination of an elongated zone

Details Multipass illumination of an elongated zone Multipass illumination of an elongated zone

1978-03-31

1981-03-03

Schafer, Richard E.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250298, 350 55, 350299, 362254, 362298, 362301, 250423P, B01D 5900, B01D 5946, G02B 1700, F21V 714

Patent

active

042543363

ABSTRACT:
A system for providing multiple traversal illumination of a region with a beam of radiation wherein the illumination provides substantial but not complete overlap at each repeated pass of the beam throughout the region. Because there is a slight shift in direction of the beam on each traversal of the region, it is possible to apply the beam and extract it after a predetermined number of traversals, and means are provided for this purpose. In addition, more than one beam may be applied to the same region, each having a different, predetermined number of traversals before extraction. In this manner, a form of beam combination is achieved.

REFERENCES:
patent: 2779230 (1957-01-01), White
patent: 3531183 (1970-09-01), Aagard
patent: 3748014 (1973-07-01), Beiser
patent: 3825325 (1974-07-01), Hartley et al.
patent: 4082633 (1978-04-01), Eeerkens
Pickett, H. M. et al., "A New White Type Multipass Absorption Cell.," Applied Optics., 9(10):2397-2398, Oct. 1970.

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