公开(公告)号：US20240219719A1

公开(公告)日：2024-07-04

申请号：US18558421

申请日：2022-05-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Daniel S. Bates ,  Craig R. Schardt ,  Jincy Jose ,  David A. Rosen ,  David G. Freier ,  Stephan J. Pankralz

IPC: G02B27/01

CPC classification number: G02B27/0101 ,  G02B2027/0118

Abstract: An optical system includes a display, a reflective polarizer, and a glare trap. The glare trap includes a plurality of slats having a length L and a width W, L/W≥10. The slats form a plurality of elongated slots therebetween substantially filled with air. The reflective polarizer has an average optical reflectance of at least 40% for a first polarization state and an average optical transmittance of at least 40% for an orthogonal second polarization state. For each of the first and second polarization states, the glare trap has an average specular optical transmittance of between about 20% to about 80% and an average total optical reflectance of less than about 20%. For at least one wavelength in the visible wavelength range, an optical transmittance of the glare trap includes a first transmittance peak at a first peak angle with a corresponding FWHIM of less than about 30 degrees.