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1. (WO2017039712) OPTICAL SYSTEM

Pub. No.:    WO/2017/039712    International Application No.:    PCT/US2015/052105
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 26 01:59:59 CEST 2015
IPC: G03B 21/00
G02B 27/01
B29D 11/00
G02B 17/08
G02B 5/30
G02B 13/00
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: YUN, Zhisheng
OUDERKIRK, Andrew J.
WONG, Timothy L.
MCDOWELL, Erin A.
AMBUR, Gregg A.
Title: OPTICAL SYSTEM
Abstract:
Optical systems including an image surface and a stop surface are described. First second and third optical lenses, a partial reflector, a multilayer reflective polarizer and a quarter wave retarder are disposed between the image surface and the stop surface. A plurality of major surfaces are disposed between the image surface and the stop surface with each major surface convex toward the image surface along orthogonal first and second axes. At least six different major surfaces have six different convexities.