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US 12,697,773 B2Granted
High speed light valve system
AssigneeSeurat Technologies, Inc.
InventorsFrancis L. Leard, James A. DeMuth, Andrew J. Bayramian, Susanne Kras, William H. Clauson, Craig Garvin, Matthew Murachver
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Abstract
An additive manufacturing system includes a high power laser to form a high fluence laser beam. A 2D patternable light valve having a structure responsive to electron emission is positioned to receive and pattern light received from the high power laser.
Claims5
An additive manufacturing system, comprising:
- a first light source configured to generate a first laser write beam with a first fluence;
- a second light source generating a second laser read beam having a second fluence greater than the first laser write beam;
- a first 2D patternable light valve configured to have a transmittivity thereof patterned by the first laser write beam;
- a third light source generating a third laser write beam with a third fluence less than the second fluence;
- a second 2D patternable light valve configured to have a transmittivity thereof patterned by the third laser write beam, the first 2D patternable light valve and second 2D patternable light valve configured to transmit the second laser read beam to produce a patterned laser beam;
- an intermediate layer group positioned between the first 2D patternable light valve and the second 2D patternable light valve, the intermediate layer group including, in order, a first alignment layer interfacing with the first 2D patternable light valve, a first transparent conductive oxide layer, a support layer, a second transparent conductive oxide layer, and a second alignment layer interfacing with the second 2D patternable light valve;
- and
- a print chamber performing printing using the patterned laser beam.
5 more elements
Dependencies are inferred from the claim text.