US 12,405,470 B2
See-through computer display systems with vision correction and increased content density
Ralph F. Osterhout, San Francisco, CA (US)
Assigned to Mentor Acquisition One, LLC, Plantation, FL (US)
Filed by Mentor Acquisition One, LLC, Plantation, FL (US)
Filed on Jan. 23, 2024, as Appl. No. 18/420,611.
Application 18/420,611 is a continuation of application No. 17/528,059, filed on Nov. 16, 2021, granted, now 11,988,837.
Application 17/528,059 is a continuation of application No. 16/393,851, filed on Apr. 24, 2019, granted, now 11,204,501, issued on Dec. 21, 2021.
Claims priority of provisional application 62/661,720, filed on Apr. 24, 2018.
Prior Publication US 2024/0160021 A1, May 16, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/153 (2006.01); G02B 1/14 (2015.01); G02B 27/01 (2006.01); G02C 7/10 (2006.01); G02F 1/163 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 1/14 (2015.01); G02C 7/101 (2013.01); G02C 7/102 (2013.01); G02F 1/163 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An optical stack comprising:
a waveguide;
a vision corrective optic disposed on a first side of the waveguide;
a protective layer disposed on a second side of the waveguide;
an electrochromic layer disposed on the second side of the waveguide; and
an air gap disposed between the waveguide and the protective layer.