IP Library Granted Patent US 11,738,505
Granted Patent B2
US 11,738,505 · App. 17/513,462 · Granted Aug 29, 2023

Large area arrayed light valves

Inventors: Francis L. Leard (Sudbury, MA); James A. DeMuth (Woburn, MA); Andrew J. Bayramian (Marblehead, MA); Drew W. Kissinger (Carlisle, MA); Joseph Gillespie (Boxford, MA)
Assignee: Seurat Technologies, Inc.
B29C64/153B22F3/105B22F12/30B29C64/268B22F10/20B33Y30/00
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Quick Facts
Patent No.
US 11,738,505
App. No.
17/513,462
Filed
Oct 28, 2021
Granted
Aug 29, 2023
Kind
B2
Art Unit
1733
USPC
419/38
Abstract

An additive manufacturing system includes at least two photoconductor plates attached to a substrate. Each photoconductor plate can include separate the Linear Electro layers and transparent conductive oxide layers.

Claims (25)

1. A light valve, comprising:

a substrate; and

at least two photoconductor plates attached to the substrate,

wherein the at least two photoconductor plates each has a linear electro (LEO) layer and a transparent conductive oxide (TCO) layer.

2. The light valve of claim 1 , wherein the substrate is sapphire.

3. The light valve of claim 1 , wherein the at least two photoconductor plates attached to the substrate are laterally positioned with respect to each other.

4. The light valve of claim 1 , wherein the at least two photoconductor plates are attached to the substrate with a glass glue.

5. The light valve of claim 1 , wherein the at least two photoconductor plates are thermal expansion matched to the substrate.

6. The light valve of claim 1 , wherein the at least two photoconductor plates are each attached to secondary substrates that are each attached to the substrate.

7. The light valve of claim 1 , wherein the at least two photoconductor plates include at least one of Bismuth Silicates, Bismuth Germanates, Cadmium Selenides, chalcogenide glasses, polycrystalline materials, or amorphous silicon.

8. The light valve of claim 1 , wherein the at least two photoconductor plates include at least one of BSO, Bi 12 SiO 20 , Bi 6 SiO 10 , Bi 3 SiO 5 , Bismuth Germanates, BGO, Bi 12 GeO 20 , Bi 6 GeO 10 , Bi 3 GeO 5 , CdSe, Ge 2 Sb 2 Te 5 (GST), Sc 0.2 Sb 2 Te 3 , GeTe, Ag 4 In 3 Sb 67 Te 26 , Ge 15 Sb 85 , Sb, CdTe, AZO, ZnSe, ZnS, or Si.

9. The light valve of claim 1 , wherein the at least two photoconductor plates form a N×M array on the substrate.

10. An additive manufacturing system, comprising

a laser light source to form a laser beam;

a light valve supporting two-dimensional patterning of the light beam, the light valve including a substrate; and

at least two photoconductor plates attached to the substrate,

wherein the at least two photoconductor plates each has a linear electro (LEO) layer and a transparent conductive oxide (TCO) layer.

11. The additive manufacturing system of claim 10 , wherein the substrate is sapphire.

12. The additive manufacturing system of claim 10 , wherein the at least two photoconductor plates attached to the substrate are laterally positioned with respect to each other.

13. The additive manufacturing system of claim 10 , wherein the at least two photoconductor plates are attached to the substrate with a glass glue.

14. The additive manufacturing system of claim 10 , wherein the at least two photoconductor plates are thermal expansion matched to the substrate.

15. The additive manufacturing system of claim 10 , wherein the at least two photoconductor plates are each attached to secondary substrates that are each attached to the substrate.

16. The additive manufacturing system of claim 10 , wherein the at least two photoconductor plates include at least one of Bismuth Silicates, Bismuth Germanates, Cadmium Selenides, chalcogenide glasses, polycrystalline materials, or amorphous silicon.

17. The additive manufacturing system of claim 10 , wherein the at least two photoconductor plates include at least one of BSO, Bi 12 SiO 20 , Bi 6 SiO 10 , Bi 3 SiO 5 , Bismuth Germanates, BGO, Bi 12 GeO 20 , Bi 6 GeO 10 , Bi 3 GeO 5 , CdSe, Ge 2 Sb 2 Te 5 (GST), Sc 0.2 Sb 2 Te 3 , GeTe, Ag 4 In 3 Sb 67 Te 26 , Ge 15 Sb 85 , Sb, CdTe, AZO, ZnSe, ZnS, or Si.

18. The additive manufacturing system of claim 10 , wherein the at least two photoconductor plates form a N×M array on the substrate.

Assignments (2)
SECURITY INTEREST Recorded Dec 9, 2025
From: SEURAT TECHNOLOGIES, INC.
To: FIRST-CITIZENS BANK & TRUST COMPANY
Reel/Frame 073909/0977 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2021
From: LEARD, FRANCIS L.; DEMUTH, JAMES A.; BAYRAMIAN, ANDREW J.; KISSINGER, DREW W.; GILLESPIE, JOSEPH
To: SEURAT TECHNOLOGIES, INC.
Reel/Frame 057952/0610 →
Cited By (1)
US 12,629,885