Coherent light generators – Particular beam control device – Producing plural wavelength output
Reexamination Certificate
2006-02-21
2006-02-21
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular beam control device
Producing plural wavelength output
C372S025000
Reexamination Certificate
active
07003004
ABSTRACT:
A pulsed multiple color laser system is disclosed having particular application for incorporation into a digital holographic printer for producing RGB color reflection holograms. A Nd:YLF crystal (1) in a laser cavity is excited to produce an emission at (1313) nm which is frequency converted by doubling to 656.3 nm and by tripling to 437.7 nm. In a separate cavity a similar Nd:YLF crystal (1a) is synchronously or asynchronously excited to produce an emission at 1047.1 nm (or at the related line of 1053 nm) which is frequency converted by doubling to 523.6 nm (or 526.5 m). The emissions at 437.7 nm and 656.5 nm are combined co-linearly with the emission at 523.6 nm (or 526.5 nm) to produce a single RGB pulsed laser beam.
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Brotherton-Ratcliffe David
Rodin Alexey
Vergnes Florian
Geola Technologies Ltd.
Madan Mossman & Sriram P.C.
Nguyen Tuan N.
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