US 12,140,741 B2
Optical system for head-mounted display
Sajjad A. Khan, Santa Clara, CA (US); Nan Zhu, San Jose, CA (US); Graham B. Myhre, Campbell, CA (US); Brent J. Bollman, Alameda, CA (US); Tyler Anderson, Sunnyvale, CA (US); Weibo Cheng, Santa Clara, CA (US); and John N. Border, Campbell, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jun. 26, 2023, as Appl. No. 18/341,562.
Application 18/341,562 is a continuation of application No. 17/150,919, filed on Jan. 15, 2021, granted, now 11,740,446.
Application 17/150,919 is a continuation of application No. 16/776,750, filed on Jan. 30, 2020, granted, now 10,928,613, issued on Feb. 23, 2021.
Application 16/776,750 is a continuation of application No. 16/224,561, filed on Dec. 18, 2018, granted, now 10,591,707, issued on Mar. 17, 2020.
Application 16/224,561 is a continuation of application No. 15/434,623, filed on Feb. 16, 2017, granted, now 10,203,489, issued on Feb. 12, 2019.
Claims priority of provisional application 62/383,911, filed on Sep. 6, 2016.
Claims priority of provisional application 62/370,170, filed on Aug. 2, 2016.
Prior Publication US 2023/0333359 A1, Oct. 19, 2023
Int. Cl. G02B 27/01 (2006.01); G02B 17/08 (2006.01); G02B 27/00 (2006.01); G02B 27/28 (2006.01); G09G 3/00 (2006.01)
CPC G02B 17/0856 (2013.01) [G02B 27/0018 (2013.01); G02B 27/0172 (2013.01); G02B 27/283 (2013.01); G02B 27/286 (2013.01); G09G 3/003 (2013.01); G02B 2027/0138 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
an array of pixels;
a linear polarizer;
a first quarter wave plate, wherein the linear polarizer is interposed between the first quarter wave plate and the array of pixels;
a first lens element having first and second opposing surfaces, wherein the first surface is a convex surface, wherein the second surface is a first planar surface, and wherein the convex surface is interposed between the planar surface and the array of pixels;
a partially reflective mirror on the convex surface, wherein the first quarter wave plate is interposed between the partially reflective mirror and the array of pixels;
a second lens element having third and fourth opposing surfaces, wherein the first lens element is interposed between the second lens element and the array of pixels, wherein the third surface is a second planar surface, and wherein the second planar surface is interposed between the fourth surface and the array of pixels; and
a second quarter wave plate that is interposed between the first and second lens elements.