US 11,723,278 B2
Photo-induced tunable metamaterial
Xiaopeng Li, Ann Arbor, MI (US); Taehwa Lee, Ann Arbor, MI (US); and Hideo Iizuka, Ann Arbor, MI (US)
Assigned to Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Feb. 2, 2021, as Appl. No. 17/165,360.
Prior Publication US 2022/0246823 A1, Aug. 4, 2022
Int. Cl. H01L 41/09 (2006.01); H10N 30/80 (2023.01); H04R 17/00 (2006.01); H10N 30/20 (2023.01)
CPC H10N 30/802 (2023.02) [H04R 17/00 (2013.01); H10N 30/2047 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A tunable metamaterial structure comprising:
a flexible substrate that is elastically deformable; and
a photo-responsive stiffness-modulating patch fixed to a surface of the flexible substrate, the photo-responsive stiffness-modulating patch including a piezoelectric element and a photo-responsive element, wherein the piezoelectric element and the photo-responsive element are electrically connected to one another.