公开(公告)号：US09784985B2

公开(公告)日：2017-10-10

申请号：US14352702

申请日：2012-10-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yarn Chee Poon ,  Andrew J. Ouderkirk ,  Philip E. Watson ,  Xiaohui Cheng ,  Kim Leong Tan ,  Stephen J. Willett

IPC: G02F1/1335 ,  G02B27/28 ,  G02B27/10 ,  G02B27/14 ,  G03B21/20 ,  G03B33/06 ,  H04N9/31

CPC classification number: G02B27/283 ,  G02B27/102 ,  G02B27/145 ,  G02F1/133533 ,  G02F2001/13355 ,  G03B21/2033 ,  G03B21/2073 ,  G03B33/06 ,  H04N9/3108 ,  H04N9/3167

Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.