公开(公告)号：EP4361687A3

公开(公告)日：2024-06-19

申请号：EP23205279.5

申请日：2023-10-23

申请人： Meta Platforms Technologies, LLC

发明人： DIAZ, Liliana Ruiz ,  YE, Sheng ,  GAO, Weihua ,  WELLS, Spencer Allan ,  OUDERKIRK, Andrew John ,  NIE, Zhaoyu ,  BOROMAND, Arman ,  RAO, Tingling ,  WANG, Junren ,  PURVIS, Lafe Joseph ,  BAZA, Hend

IPC分类号： G02B5/26 ,  G02B5/28 ,  G02B5/30

CPC分类号： G02B5/289 ,  G02B5/287 ,  G02B5/3083 ,  G02B5/3016 ,  G02B5/26

摘要： A notched filter includes a multilayer having alternating first and second polymer layers, the first polymer layers each including an isotropic polymer thin film having in-plane refractive indices n1x and n1y, and the second polymer layers each including an isotropic or anisotropic polymer thin film having in-plane refractive indices n2x and n2y, where a thickness of each successive first polymer layer decreases with increasing distance from a centerline of the multilayer, and a thickness of each successive second polymer layer increases with increasing distance from the centerline. Such a filter may be configured to reflect incident light having a desired polarization state within a predetermined and relatively narrow band.

公开(公告)号：EP4361687A2

公开(公告)日：2024-05-01

申请号：EP23205279.5

申请日：2023-10-23

申请人： Meta Platforms Technologies, LLC

发明人： DIAZ, Liliana Ruiz ,  YE, Sheng ,  GAO, Weihua ,  WELLS, Spencer Allan ,  OUDERKIRK, Andrew John ,  NIE, Zhaoyu ,  BOROMAND, Arman ,  RAO, Tingling ,  WANG, Junren ,  PURVIS, Lafe Joseph ,  BAZA, Hend

IPC分类号： G02B5/26 ,  G02B5/28 ,  G02B5/30

CPC分类号： G02B5/289 ,  G02B5/287 ,  G02B5/3083 ,  G02B5/3016 ,  G02B5/26

摘要： A notched filter includes a multilayer having alternating first and second polymer layers, the first polymer layers each including an isotropic polymer thin film having in-plane refractive indices n1x and n1y, and the second polymer layers each including an isotropic or anisotropic polymer thin film having in-plane refractive indices n2x and n2y, where a thickness of each successive first polymer layer decreases with increasing distance from a centerline of the multilayer, and a thickness of each successive second polymer layer increases with increasing distance from the centerline. Such a filter may be configured to reflect incident light having a desired polarization state within a predetermined and relatively narrow band.

公开(公告)号：EP4332640A1

公开(公告)日：2024-03-06

申请号：EP23188930.4

申请日：2023-08-01

申请人： Meta Platforms Technologies, LLC

发明人： GAO, Weihua ,  Ye, Sheng ,  GRESPAN, Silvio ,  CHEN, Aiqing ,  HUANG, Rongzhi ,  LIAO, Christopher Tuan Ting ,  OUDERKIRK, Andrew John ,  NIE, Zhaoyu ,  DIAZ, Liliana Ruiz

IPC分类号： G02B1/111 ,  G02B5/30

摘要： A multilayer polymer thin film includes an anti-reflective coating directly overlying a reflective polarizer stack. The reflective polarizer stack includes alternating first and second polymer layers, where the first layers include an isotropic polymer thin film and the second layers include an anisotropic polymer thin film. The anti-reflective coating (ARC) includes alternating third and fourth layers, where the third layers include an isotropic polymer thin film or an anisotropic polymer thin film and the fourth layers include an isotropic polymer thin film. The multilayer polymer thin film may be formed by co-extrusion where the reflective polarizer stack and the anti-reflective coating are formed simultaneously.