US 12,436,395 B2
Optical configurations for head-worn see-through displays
John N. Border, Eaton, NH (US)
Assigned to Mentor Acquisition One, LLC, Plantation, FL (US)
Filed by Mentor Acquisition One, LLC, Plantation, FL (US)
Filed on Nov. 1, 2024, as Appl. No. 18/935,379.
Application 17/079,340 is a division of application No. 14/936,718, filed on Nov. 10, 2015, granted, now 10,877,270, issued on Dec. 29, 2020.
Application 14/936,718 is a division of application No. 14/296,699, filed on Jun. 5, 2014, granted, now 9,841,599, issued on Dec. 12, 2017.
Application 18/935,379 is a continuation of application No. 18/596,560, filed on Mar. 5, 2024, granted, now 12,174,388.
Application 18/596,560 is a continuation of application No. 17/850,680, filed on Jun. 27, 2022, granted, now 11,960,089, issued on Apr. 16, 2024.
Application 17/850,680 is a continuation of application No. 17/079,340, filed on Oct. 23, 2020, granted, now 11,402,639, issued on Aug. 2, 2022.
Prior Publication US 2025/0060595 A1, Feb. 20, 2025
Int. Cl. G02B 27/01 (2006.01); G06F 1/16 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 27/0101 (2013.01); G06F 1/163 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0178 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical system configured for use with a wearable head device, the optical system comprising:
a first combiner, the first combiner adapted to visually present image content such that a surrounding environment is visible to a user of the wearable head device through the first combiner while the image content is presented, wherein the first combiner comprises a first surface having a reflectivity that is adjustable;
one or more light sources, the one or more light sources adapted to project image light onto the first combiner,
a first camera configured to capture a portion of first ambient light reflected by the first combiner; and
a processor configured to:
determine whether a brightness of the first ambient light exceeds a first threshold value,
in accordance with a determination that the brightness of the first ambient light exceeds the first threshold value, increase the reflectivity of the first surface of the first combiner,
in accordance with a determination that the brightness of the first ambient light does not exceed the first threshold value, forgo increasing the reflectivity of the first surface of the first combiner,
wherein the first combiner is adapted to reflect, with the reflectivity and toward a first eye of a user, a first portion of the image light projected by the one or more light sources.