US 12,233,612 B2
Display system
Andrew J. Ouderkirk, Kirkland, WA (US); Zhisheng Yun, Sammamish, WA (US); Timothy L. Wong, St. Paul, MN (US); Erin A. McDowell, Afton, MN (US); Jo A. Etter, Kirkland, WA (US); and Robert M. Jennings, Shoreview, MN (US)
Assigned to 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed on May 25, 2021, as Appl. No. 17/329,678.
Application 17/329,678 is a continuation of application No. 16/718,385, filed on Dec. 18, 2019.
Application 16/718,385 is a continuation of application No. 15/754,002, granted, now 10,564,427, previously published as PCT/US2016/050024, filed on Sep. 2, 2016.
Claims priority of provisional application 62/214,049, filed on Sep. 3, 2015.
Prior Publication US 2021/0278677 A1, Sep. 9, 2021
Int. Cl. G02B 27/28 (2006.01); B29D 11/00 (2006.01); G02B 5/30 (2006.01); G02B 13/00 (2006.01); G02B 17/08 (2006.01); G02B 27/00 (2006.01); G02B 27/01 (2006.01); G02B 27/09 (2006.01); G02B 27/14 (2006.01); G03B 21/28 (2006.01)
CPC B29D 11/00644 (2013.01) [G02B 5/30 (2013.01); G02B 5/3041 (2013.01); G02B 5/305 (2013.01); G02B 5/3058 (2013.01); G02B 5/3066 (2013.01); G02B 5/3083 (2013.01); G02B 13/0055 (2013.01); G02B 17/0804 (2013.01); G02B 17/0856 (2013.01); G02B 27/0068 (2013.01); G02B 27/0081 (2013.01); G02B 27/0172 (2013.01); G02B 27/0905 (2013.01); G02B 27/0983 (2013.01); G02B 27/144 (2013.01); G02B 27/145 (2013.01); G02B 27/148 (2013.01); G02B 27/283 (2013.01); G02B 27/286 (2013.01); G03B 21/28 (2013.01); G02B 17/0896 (2013.01); G02B 2027/011 (2013.01); G02B 2027/013 (2013.01); G02B 2027/0138 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display system comprising an optical system and a curved display disposed to emit light toward the optical system, the optical system comprising:
a first optical lens;
a partial reflector having an average optical reflectance of at least 30% for at least one desired wavelength; and
a reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state, the optical system having an optical axis such that a light ray emitted by the display and propagating along the optical axis passes through the first optical lens, the partial reflector and the reflective polarizer without being substantially refracted, wherein the optical system is rotationally symmetric about the optical axis with respect to light rays emitted by the display and making a smaller first, but not a greater second, incident angle with the optical axis and wherein for each of the first and second incident angles, a plurality of the light rays pass through the first optical lens, the partial reflector and the reflective polarizer.