US 11,788,869 B2
Waveguides for use in sensors or displays
Robert Shepherd, Ithaca, NY (US); Huichan Zhao, Ithaca, NY (US); Rukang Huang, Ithaca, NY (US); Hedan Bai, Ithaca, NY (US); and Shuo Li, Ithaca, NY (US)
Assigned to Cornell University, Ithaca, NY (US)
Filed by Cornell University, Ithaca, NY (US)
Filed on Aug. 31, 2022, as Appl. No. 17/900,475.
Application 17/900,475 is a continuation of application No. 16/079,798, granted, now 11,473,942, previously published as PCT/US2017/019659, filed on Feb. 27, 2017.
Claims priority of provisional application 62/382,582, filed on Sep. 1, 2016.
Claims priority of provisional application 62/299,582, filed on Feb. 25, 2016.
Prior Publication US 2023/0003558 A1, Jan. 5, 2023
Int. Cl. G01D 5/353 (2006.01); G01B 11/16 (2006.01); B25J 9/14 (2006.01); B25J 13/08 (2006.01); B25J 15/00 (2006.01); B25J 15/12 (2006.01); B25J 9/00 (2006.01); G02B 6/10 (2006.01); G01L 1/24 (2006.01); G02B 6/42 (2006.01)
CPC G01D 5/35345 (2013.01) [B25J 9/0006 (2013.01); B25J 9/142 (2013.01); B25J 13/081 (2013.01); B25J 13/082 (2013.01); B25J 13/084 (2013.01); B25J 13/085 (2013.01); B25J 13/088 (2013.01); B25J 15/0009 (2013.01); B25J 15/12 (2013.01); G01B 11/16 (2013.01); G01L 1/242 (2013.01); G02B 6/10 (2013.01); G02B 6/4202 (2013.01); G01L 1/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
an optical waveguide comprising a core comprising a first elastomer material and cladding comprising a second elastomer material, the first elastomer material having a first index of refraction and the second elastomer material having a second index of refraction, the first index of refraction being larger than the second index of refraction,
wherein the first elastomer material and the second elastomer material elastomer are lossy and more light is lost to an environment as deformation of the optical waveguide increases, and
wherein the optical waveguide is confirmed to yield an output power loss greater than about 0.1 dB/cm for elongation of the optical waveguide core and cladding between about 1% to about 85%.