US 11,940,629 B2
Optical configurations for head-worn see-through displays
John N. Border, Campbell, CA (US); Joseph Bietry, Chili, NY (US); and John D. Haddick, Corte Madera, CA (US)
Assigned to Mentor Acquisition One, LLC, Plantation, FL (US)
Filed by Mentor Acquisition One, LLC, Plantation, FL (US)
Filed on Jun. 17, 2022, as Appl. No. 17/843,459.
Application 15/155,139 is a division of application No. 14/325,991, filed on Jul. 8, 2014, granted, now 9,366,867, issued on Jun. 14, 2016.
Application 17/843,459 is a continuation of application No. 16/991,992, filed on Aug. 12, 2020, granted, now 11,409,110.
Application 16/991,992 is a continuation of application No. 16/746,701, filed on Jan. 17, 2020, granted, now 10,775,630, issued on Sep. 15, 2020.
Application 16/746,701 is a continuation of application No. 15/724,297, filed on Oct. 4, 2017, granted, now 10,564,426, issued on Feb. 18, 2020.
Application 15/724,297 is a continuation of application No. 15/155,139, filed on May 16, 2016, granted, now 9,798,148, issued on Oct. 24, 2017.
Prior Publication US 2022/0317458 A1, Oct. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 5/30 (2013.01); G02B 27/0176 (2013.01); G02B 27/28 (2013.01); G02B 27/283 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0152 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wearable device comprising:
a field lens;
a reflective display;
a quarter-wave plate;
a reflective polarizer configured to reflect light having a first polarization state and further configured to transmit light having a second polarization state;
a light source configured to transmit source light to the reflective polarizer, wherein:
the reflective polarizer is configured to reflect the source light toward the reflective display via the quarter-wave plate, and
the reflective display is configured to receive the source light and, in response to receiving the source light, transmit image light via the quarter-wave plate to the field lens and to the reflective polarizer; and
a beam splitter configured to:
receive the image light via the field lens, and
present an image to a user of the wearable device, the image comprising the image light.