US 12,222,511 B2
Dynamic focusing head mounted display
Anthony Van Heugten, Sarasota, FL (US)
Assigned to e-Vision Smart Optics, Inc., Sarasota, FL (US)
Filed by e-Vision Smart Optics, Inc., Sarasota, FL (US)
Filed on May 8, 2023, as Appl. No. 18/313,450.
Application 18/313,450 is a continuation of application No. 17/577,965, filed on Jan. 18, 2022, granted, now 11,668,941.
Application 17/577,965 is a continuation of application No. 17/008,857, filed on Sep. 1, 2020, granted, now 11,237,396, issued on Feb. 1, 2022.
Application 17/008,857 is a continuation of application No. 15/589,376, filed on May 8, 2017, granted, now 10,782,526, issued on Sep. 22, 2020.
Application 15/589,376 is a continuation of application No. PCT/US2016/059346, filed on Oct. 28, 2016.
Claims priority of provisional application 62/270,896, filed on Dec. 22, 2015.
Prior Publication US 2023/0273443 A1, Aug. 31, 2023
Int. Cl. G02B 27/01 (2006.01); G02B 3/14 (2006.01); G02B 5/10 (2006.01); G02B 7/04 (2021.01); G02B 26/00 (2006.01); G02B 27/16 (2006.01); G02B 27/40 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 7/04 (2013.01); G02B 27/16 (2013.01); G02B 27/40 (2013.01); G02B 3/14 (2013.01); G02B 5/10 (2013.01); G02B 26/004 (2013.01); G02B 26/005 (2013.01); G02B 2027/0181 (2013.01); G02B 2027/0185 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A head-mounted display apparatus comprising:
a display to show an information-bearing image;
a beam splitter, in optical communication with the display, to reflect the information-bearing image;
a tunable lens, in optical communication with the beam splitter and having a variable optical power, to vary a focus of the information-bearing image reflected to a wearer of the head-mounted display apparatus by the beam splitter; and
a controller, operably coupled to the tunable lens, to control the focus of the information-bearing image based on at least one of information in the information-bearing image, input from the wearer, or an anatomical trigger,
wherein the controller is configured to bring the information-bearing image to near focus in response to the information-bearing image including information intended to be seen at near focus and to bring the information-bearing image to infinite focus in response to the information-bearing image including information intended to be seen at infinite focus.