公开(公告)号：EP2310905A4

公开(公告)日：2013-05-29

申请号：EP09756992

申请日：2009-06-05

Applicant: LENSVECTOR INC

Inventor： ASATRYAN KAREN ,  GALSTIAN TIGRAN ,  BAGRAMYAM ARAM ,  PRESNIAKOV VLADIMIR ,  TORK AMIR ,  ZOHRABYAN ARMEN ,  CLARK PETER P

IPC: G02F1/133 ,  G02F1/1343 ,  G02F1/137

CPC classification number: G02F1/139 ,  G02F1/133723 ,  G02F1/133784 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/1395 ,  G02F1/29 ,  G02F2001/133749 ,  G02F2001/291

Abstract: A liquid crystal optical device has a layered structure with split liquid crystal layers having alignment surfaces that define in a liquid crystal material pre-tilt angles of opposite signs. Four liquid crystal layers can provide two directions of linear polarization. In the case of a lens, the device can be a gradient index lens, and the alignment surfaces can have a spatially uniform pre-tilt.