Coherent light generators – Particular resonant cavity – Plural cavities
Patent
1991-10-30
1993-09-07
Lee, John D.
Coherent light generators
Particular resonant cavity
Plural cavities
359495, 359625, 359626, 359639, H01S 3082
Patent
active
052436195
ABSTRACT:
In the process and by means of the apparatus, several radiation sources (1) arranged in a row, whose emitted radiation intensity distribution is not rotationally symmetrical, are imaged by means of a first, noncentrically imaging functional element (5), then each beam bundle (9) is rotated by means of a beam-rotating element (7), and the beam components of the rotated beam bundles (9) not imaged by the first functional element (5) are imaged by means of a second, noncentrically imaging functional element (11). The functional elements (5, 11) and their locations are chosen so that parallel beam bundles (9) are produced which are focused with a spherical lens (15) into a spatial zone (3). The apparatus according to this invention provides in a simple way a good focusing ability for several individual beams.
REFERENCES:
patent: 4152725 (1979-05-01), Beckmann
patent: 4185891 (1980-01-01), Kaestner
patent: 4306278 (1981-12-01), Fulton et al.
patent: 4728196 (1988-03-01), Gerstorfer
patent: 4822151 (1989-04-01), Tatsuno et al.
patent: 5117436 (1992-05-01), Hanson
Albers Peter
Heimbeck Hans-Jorg
Langenbach Eckhard
Bystronic Laser AG.
Fisba Optik AG.
Lee John D.
Wise Robert E.
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