公开(公告)号：WO2022172110A1

公开(公告)日：2022-08-18

申请号：PCT/IB2022/050649

申请日：2022-01-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： FABICK, Ryan T. ,  JOHNSON, Matthew B. ,  NESHEIM, Kyle M.

IPC: G02B1/14 ,  G02B5/00 ,  B32B7/023 ,  B32B7/12

Abstract: A package for protecting a light sensitive material is disclosed. The package includes an optical film including a plurality of polymeric layers. For a substantially normally incident light, an optical transmittance of the optical film versus wavelength includes a band edge separating a first wavelength range including at least wavelengths from about 360 nm to about 400 nm from a second wavelength range including at least wavelengths from about 520 nm to about 680 nm. The optical film has an average optical transmittance of less than about 15% in the first wavelength range and an average optical transmittance of greater than about 70% in the second wavelength range.