Patent ID: 9405067
Filing Date: 2016-08-02
CPC Classification: B29D,B32B,G02B,Y10T

Claim Text:
1. A micro-truss sheet, including: a plurality of first truss members defined by a plurality of first self-propagating polymer waveguides and extending along a first direction; a plurality of second truss members defined by a plurality of second self-propagating polymer waveguides and extending along a second direction; and a plurality of third truss members defined by a plurality of third self-propagating polymer waveguides and extending along a third direction; wherein each truss member has a diameter; the sheet having a length substantially greater than its thickness, and the sheet having a first region comprising a plurality of first unit cells and a second region comprising a plurality of second unit cells, the first region and the second region being separated along the length of the sheet, wherein all the truss members within the first unit cells have the same diameter, wherein all the truss members within the second unit cells have the same diameter, wherein the diameter of each of the plurality of first truss members, the plurality of second truss members, and the plurality of third truss members within the first unit cells in the first region is at least 10% greater than the diameter of each of the plurality of first truss members, the plurality of second truss members, and the plurality of third truss members within the second unit cells in the second region, and wherein the micro-truss sheet forms one continuous body, having a gradient in the diameter of the truss members of the plurality of first truss members, the plurality of second truss members, and the plurality of third truss members, along the length of the sheet.