Electric heating – Metal heating – By arc
Reexamination Certificate
2007-02-22
2010-12-14
Evans, Geoffrey S (Department: 3742)
Electric heating
Metal heating
By arc
C219S121650, C219S121730, C355S067000, C438S795000
Reexamination Certificate
active
07851724
ABSTRACT:
A laser exposure which includes: a laser light source including a multi-transverse mode semiconductor laser; a far-field pattern forming optical system for forming a far-field pattern of multi-transverse mode laser light emitted from the laser light source; a condensing optical system for condensing the laser light emitted from the far-field pattern forming optical system and applying the condensed laser light to a substance to be exposed; and a coherency reducing element disposed in an optical path between the laser light source and the substance to be exposed, for reducing coherency of two wavefront components that are contained in high-order transverse mode light of each order emitted from the laser light source and propagate in substantially symmetrical directions with respect to the optical axis.
REFERENCES:
patent: 5533152 (1996-07-01), Kessler
patent: 2006/0262408 (2006-11-01), Kato
patent: 10-62713 (1998-03-01), None
patent: 2003-347236 (2003-12-01), None
patent: 2003-347236 (2003-12-01), None
patent: 2006-5015 (2006-01-01), None
patent: 2006-71855 (2006-03-01), None
patent: 2007-27289 (2007-02-01), None
Machine translation of Japan Patent No. 2003-347,236, Jan. 2010.
Evans Geoffrey S
FUJIFILM Corporation
Sughrue & Mion, PLLC
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