公开(公告)号：US20240012179A1

公开(公告)日：2024-01-11

申请号：US18253459

申请日：2021-11-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Kristy A. Gillette ,  John D. Le ,  David J.W. Aastuen

IPC: G02B1/04 ,  G02B5/28

CPC classification number: G02B1/041 ,  G02B5/287

Abstract: An optical lens includes a lens substrate including a cyclic olefin copolymer, an optical film including a plurality of alternating first and second polymeric layers, and a bonding film disposed on, and bonding the optical film to, a major surface of the lens substrate. The bonding film causes an average peel force to separate the optical film from the lens substrate to be greater than about 100 g/in while maintaining for at least one outermost major surface of the optical film, a mean displacement surface roughness Sa of less than about 10 nm and a slope magnitude error of less than about 100 μrad, and/or lower and higher spatial frequency slope magnitude errors each less than about 100 μrad.

公开(公告)号：US20220004015A1

公开(公告)日：2022-01-06

申请号：US17292972

申请日：2019-12-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David J.W. Aastuen ,  Zhisheng Yun ,  Timothy J. Nevitt ,  John D. Le ,  Susan L. Kent ,  Gilles J. Benoit ,  David T. Yust

IPC: G02B27/28 ,  G02B5/28 ,  G02B5/30

Abstract: An optical film and a polarizing beam splitter (PBS) including the optical film is described. The optical film includes a first optical stack disposed on, and spaced apart by one or more spacer layers from, a second optical stack. When the optical film is disposed between, and adhered to, hypotenuses of first and second prisms to form a PBS and a cone of light is incident on the PBS making an incident angle of about 40 to 50 degrees with the optical film, the PBS has: an average optical reflectance Rs greater than about 95% for a first polarization state; an average optical transmittance Ts less than about 0.012% for the first polarization state; an average optical transmittance Tp less than about 98.5% for a second polarization state; and an average optical reflectance Rp less than about 0.25% for the second polarization state.

公开(公告)号：US20210187885A1

公开(公告)日：2021-06-24

申请号：US16754825

申请日：2018-10-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert M. Jennings ,  William T. Fay ,  Jo A. Etter ,  Arthur L. Kotz ,  David J.W. Aastuen

IPC: B29D11/00 ,  B29C51/42

Abstract: Optical films having a curved shaped and methods of shaping optical films are described. A method of shaping an optical film includes the steps of disposing the optical film adjacent first and second rollers spaced apart along a first direction, securing opposing first and second ends of the optical film, providing a curved mold surface, and shaping the optical film by contacting the optical film with the curved mold surface while stretching the optical film along the first direction and keeping a threshold distance between closest points on the optical film contacting the first roller and contacting the curved mold surface less than the width of the optical film to reduce buckling of the optical film.

公开(公告)号：US20170052383A1

公开(公告)日：2017-02-23

申请号：US15346774

申请日：2016-11-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Stephen J. Willett ,  Craig R. Schardt ,  David J.W. Aastuen

IPC: G02B27/28 ,  G02B13/16 ,  G02B5/30

CPC classification number: G02B27/283 ,  G02B5/3025 ,  G02B13/16 ,  G03B21/20 ,  H04N9/3167

Abstract: Projection subsystems are described. More, particularly, projection subsystems that include a light source and a polarizing beam splitter are described. The polarizing beam splitters of the presently described projection subsystems are capable of avoiding performance degradation even after exposure to large doses of incident light.

Abstract translation: 描述投影子系统。 更具体地，描述了包括光源和偏振分束器的投影子系统。 目前描述的投影子系统的偏振分束器即使在暴露于大量入射光之后也能够避免性能下降。