公开(公告)号：WO2021205248A1

公开(公告)日：2021-10-14

申请号：PCT/IB2021/051778

申请日：2021-03-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： SHENOY, Kundapur Raveesh ,  PHAM, Tri D. ,  STUDINER IV, Charles J. ,  YANG, Zhaohui ,  BALTS, Corey D. ,  MARKOWICZ, Przemyslaw P. ,  ROEHRIG, Mark A. ,  TOY, Michelle L. ,  INVIE, Judith M.

IPC: G02B5/00 ,  A61B5/1172 ,  G02B3/00 ,  G06K9/00 ,  H01L27/146

Abstract: An optical construction includes a lens film having opposing first and second major surfaces. The first major surface includes a plurality of microlenses arranged along orthogonal directions. An optically opaque mask layer including a UV-cured polymer material is disposed on the second major surface of the lens film and defines a plurality of laser-ablated through openings therein. The openings are aligned to the microlenses in a one-to-one correspondence. For a substantially collimated light incident on the first major surface along an incident direction, an optical transmittance of the optical construction as a function of a transmitted angle includes a first transmitted peak having a first transmittance T1 at a first transmitted angle within about 10 degrees of the incident direction, and a second transmitted peak having a second transmittance T2 at a second transmitted angle between about 30 to 60 degrees of the incident direction, wherein T2/T1 ≥ 0.01.