公开(公告)号：US10042176B2

公开(公告)日：2018-08-07

申请号：US14892935

申请日：2014-06-27

Applicant: DEXERIALS CORPORATION

Inventor： Koji Sasaki ,  Masatoshi Sasaki ,  Nobuyuki Koike ,  Akio Takada ,  Katsuhiro Shindo ,  Toshiaki Sugawara ,  Kouichi Miyagi ,  Masahiro Oowada

IPC: G02B27/28 ,  G02B1/14 ,  G02B5/30 ,  C09J183/04 ,  G02B5/04

Abstract: This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, inorganic half-wave plates provided selectively on the output surface of a polarizing beam-splitter array have obliquely deposited layers comprising a dielectric material and the side surfaces of said obliquely deposited layers are covered by protective films.