US 11,754,759 B2
Electronic devices having optical diffusers for optical components
Tingjun Xu, San Jose, CA (US); Guocheng Shao, Campbell, CA (US); Rui L. Peterson, San Jose, CA (US); Serhan O. Isikman, Redwood City, CA (US); Sunggu Kang, San Jose, CA (US); Tianbo Sun, Sunnyvale, CA (US); Xianwei Zhao, Cupertino, CA (US); and Xingxing Cai, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 24, 2020, as Appl. No. 17/31,625.
Prior Publication US 2022/0091308 A1, Mar. 24, 2022
Int. Cl. G02B 5/02 (2006.01); G02B 5/20 (2006.01); G02B 5/28 (2006.01); G01J 1/42 (2006.01)
CPC G02B 5/0294 (2013.01) [G01J 1/4204 (2013.01); G02B 5/0278 (2013.01); G02B 5/206 (2013.01); G02B 5/281 (2013.01); G02B 5/285 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a display having an array of pixels configured to display an image;
an opaque masking layer in a portion of the display, wherein the opaque masking layer has an optical component opening;
an optical component aligned with the optical component opening; and
a layer of polymer with embedded thin-film interference filter flakes each of which has a stack of thin- film inorganic dielectric layers, wherein the layer of polymer with the embedded thin-film interference filter flakes is between the optical component opening and the optical component, and wherein the embedded thin-film interference filter flakes transmit visible light between the optical component and the optical component opening.