公开(公告)号：US20170057193A1

公开(公告)日：2017-03-02

申请号：US14835385

申请日：2015-08-25

Applicant: HRL LABORATORIES, LLC

Inventor： Eric C. Clough ,  Jie Ensberg ,  Alan J. Jacobsen ,  Jacob M. Hundley ,  William Carter ,  Tobias A. Schaedler

IPC: B32B3/08 ,  B05D1/02 ,  G02B6/12 ,  C25D5/00 ,  G03F7/00 ,  C23C16/44 ,  B05D1/18

CPC classification number: B32B3/085 ,  C25D5/56 ,  C25D7/00 ,  G02B6/00 ,  G02B6/12002 ,  G03F7/0005 ,  G03F7/0037 ,  G03F7/201 ,  G03F7/2012 ,  Y10T428/12347 ,  Y10T428/249953 ,  Y10T428/249991

Abstract: A sparse micro-truss structure having a series of unit cells arranged in an array is disclosed. Each of the unit cells includes a series of struts interconnected at a node. Adjacent unit cells are spaced apart by a gap. Spacing apart the adjacent unit cells is configured to reduce the sensitivity of the sparse micro-truss structure to premature mechanical failure due to buckling in one or more of the struts compared to related art micro-truss structures having a series of fully interconnected unit cells.

Abstract translation: 公开了一种具有排列成阵列的一系列单元的稀疏微型桁架结构。 每个单位单元包括在一个节点处互连的一系列支柱。 相邻的单元电池间隔开间隙。 隔开相邻的单元电池被配置为与具有一系列完全互连的单元电池的相关技术的微型桁架结构相比，将稀疏微桁架结构的灵敏度降低到由于一个或多个支柱中的屈曲而导致的过早的机械故障的敏感性。

公开(公告)号：US10882220B1

公开(公告)日：2021-01-05

申请号：US16256735

申请日：2019-01-24

Applicant: HRL LABORATORIES, LLC

Inventor： Jie Ensberg ,  Christopher J. Ro ,  Sophia S. Yang ,  Zak C. Eckel ,  Eric C. Clough

IPC: B29C35/08 ,  B29C33/40 ,  B29C33/38 ,  B32B1/02 ,  B32B3/12 ,  B29C33/60 ,  B29L31/00 ,  B29K105/00

Abstract: A method and/or system for forming a micro-truss structure in an essentially arbitrary shape. A mold that has a transparent portion, and having an interior volume in the desired shape, is filled with photomonomer resin. The material for the transparent portion of the mold is selected to be a material that is index-matched to the photomonomer resin. The filled mold, placed into a bath of transparent fluid index-matched to the transparent portion of the mold, and illuminated, from outside the fluid, through a photomask, with collimated light. The collimated light travels through the photomask forming beams of light that enter the transparent fluid, propagate into the mold, and form a micro-truss structure in the shape of the interior volume of the mold. The micro-truss structure may then be removed from the mold, or part or all of the mold may be left adhered to the micro-truss structure, forming covering face sheets.

公开(公告)号：US10239237B1

公开(公告)日：2019-03-26

申请号：US14824481

申请日：2015-08-12

Applicant: HRL LABORATORIES, LLC

Inventor： Jie Ensberg ,  Christopher J. Ro ,  Sophia S. Yang ,  Zak C. Eckel ,  Eric C. Clough

IPC: B29C35/08 ,  B29C33/40 ,  B29C33/60 ,  B29C33/38 ,  B32B1/02 ,  B32B3/12 ,  B29K105/00 ,  B29L31/00

Abstract: A method and/or system for forming a micro-truss structure in an essentially arbitrary shape. A mold that has a transparent portion, and having an interior volume in the desired shape, is filled with photomonomer resin. The material for the transparent portion of the mold is selected to be a material that is index-matched to the photomonomer resin. The filled mold, placed into a bath of transparent fluid index-matched to the transparent portion of the mold, and illuminated, from outside the fluid, through a photomask, with collimated light. The collimated light travels through the photomask forming beams of light that enter the transparent fluid, propagate into the mold, and form a micro-truss structure in the shape of the interior volume of the mold. The micro-truss structure may then be removed from the mold, or part or all of the mold may be left adhered to the micro-truss structure, forming covering face sheets.

公开(公告)号：US10232583B2

公开(公告)日：2019-03-19

申请号：US14835385

申请日：2015-08-25

Applicant: HRL LABORATORIES, LLC

Inventor： Eric C. Clough ,  Jie Ensberg ,  Alan J. Jacobsen ,  Jacob M. Hundley ,  William Carter ,  Tobias A. Schaedler

IPC: B32B3/08 ,  G03F7/00 ,  G02B6/12 ,  C25D5/56 ,  C25D7/00 ,  G03F7/20 ,  G02B6/00

Abstract: A sparse micro-truss structure having a series of unit cells arranged in an array is disclosed. Each of the unit cells includes a series of struts interconnected at a node. Adjacent unit cells are spaced apart by a gap. Spacing apart the adjacent unit cells is configured to reduce the sensitivity of the sparse micro-truss structure to premature mechanical failure due to buckling in one or more of the struts compared to related art micro-truss structures having a series of fully interconnected unit cells.