US 12,085,787 B2
Eyewear waveguide with reflector
Jonathan M. Rodriguez, II, La Habra, CA (US); Julio Cesar Castañeda, Redondo Beach, CA (US); Samuel Bryson Thompson, Downers Grove, IL (US); and Michael Christian Ryner, Santa Monica, CA (US)
Assigned to Snap Inc., Santa Monica, CA (US)
Filed by Snap Inc., Santa Monica, CA (US)
Filed on Mar. 1, 2023, as Appl. No. 18/116,203.
Application 18/116,203 is a continuation of application No. 16/425,204, filed on May 29, 2019, granted, now 11,609,441, issued on Mar. 21, 2023.
Claims priority of provisional application 62/678,051, filed on May 30, 2018.
Prior Publication US 2023/0204981 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02C 7/00 (2006.01); G02B 6/124 (2006.01); G02C 5/00 (2006.01); G02C 7/08 (2006.01); G03B 21/14 (2006.01)
CPC G02C 7/088 (2013.01) [G02B 6/1245 (2013.01); G02C 5/006 (2013.01); G03B 21/142 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Eyewear comprising:
a lens including first and second waveguides;
a projector configured to project a first spectrum of light into the first waveguide and a second spectrum of light into the second waveguide;
an output light coupler for at least one of the first waveguide or the second waveguide that is positioned in a viewing area of the lens to couple a first portion of projected light out of the first waveguide or the second waveguide toward an eye of a user and to reflect a second portion of the projected light into the first waveguide or the second waveguide; and
a first reflector on the lens opposite the output light coupler, the first reflector positioned in the viewing area of the lens to redirect back toward the output light coupler the second portion of the projected light from the output light coupler having an angle of incidence with respect to the lens that would result in the second portion of the projected light exiting the first waveguide or the second waveguide through the lens in the absence of the first reflector, wherein the second portion of the projected light redirected by the first reflector is coupled by the output light coupler out of the at least one of the first waveguide or second waveguide toward the eye of the user with the first portion of the projected light so as to increase brightness of the light projected toward the eye of the user.