公开(公告)号：US20240318029A1

公开(公告)日：2024-09-26

申请号：US18270035

申请日：2021-12-22

申请人： University of Rochester

发明人： Wyatt Tenhaeff ,  Yineng Zhao ,  Sheng Ye ,  Andrew Ouderkirk

IPC分类号： C09D133/16 ,  G02B1/18

CPC分类号： C09D133/16 ,  G02B1/18

摘要： A barrier coating for optical devices or elements that comprises poly(1H, 1H,6H,6H-perfluorohexyl diacrylate) (pFHDA) and has desirable characteristics such as oil permeation protection, increased transparency, and thermal stability.

公开(公告)号：US20240027651A1

公开(公告)日：2024-01-25

申请号：US18224404

申请日：2023-07-20

申请人： University of Rochester

发明人： Wyatt Tenhaeff ,  Yineng Zhao ,  Sheng Ye

IPC分类号： G02B1/111 ,  G02B5/28

CPC分类号： G02B1/111 ,  G02B5/287

摘要： Stretchable and compliant interference coatings for flexible optics and optoelectronic devices comprise polymeric optical thin films prepared by initiated chemical vapor deposition (iCVD) forming uniform, multilayered thin film coatings on temperature sensitive substrates at low temperature with precise thickness control. A model two-layer coating of poly(1H,1H,6H,6H-perfluorohexyl diacrylate) (pPFHDA) with a refractive index at 633 nm of n633=1.426 deposited onto poly(4-vinylpyridine) (p4VP, n633˜1.587) gives broadband performance over the visible wavelength range (400 nm to 750 nm) of a transparent, flexible thermoplastic polyurethane (TPU) substrate (n633˜1.51), reducing the front-surface reflectance from ˜4% to ˜2%, with superior mechanical compliance over conventional inorganic coatings (MgF2, SiO2, and Al2O3). Like interference coatings or three or more layers can be fabricated, where the materials and thicknesses of the layers can differ.