US 11,855,113 B2
Image sensor including color separating lens array and electronic device including the image sensor
Sookyoung Roh, Yongin-si (KR); and Seokho Yun, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 29, 2021, as Appl. No. 17/514,634.
Claims priority of application No. 10-2020-0143877 (KR), filed on Oct. 30, 2020; and application No. 10-2021-0083124 (KR), filed on Jun. 25, 2021.
Prior Publication US 2022/0141427 A1, May 5, 2022
Int. Cl. H01L 27/146 (2006.01); G02B 27/10 (2006.01); G02B 27/12 (2006.01); H04N 23/84 (2023.01); H04N 9/01 (2023.01); H04N 23/11 (2023.01); H04N 25/11 (2023.01); H04N 23/12 (2023.01); H04N 25/131 (2023.01); H04N 25/13 (2023.01); H04N 25/133 (2023.01)
CPC H01L 27/14627 (2013.01) [G02B 27/1013 (2013.01); G02B 27/123 (2013.01); H04N 9/01 (2023.01); H04N 23/11 (2023.01); H04N 23/12 (2023.01); H04N 23/84 (2023.01); H04N 25/11 (2023.01); H04N 25/131 (2023.01); H04N 25/133 (2023.01); H04N 25/135 (2023.01)] 33 Claims
OG exemplary drawing
 
1. An image sensor comprising:
a sensor substrate comprising a plurality of first pixels configured to sense first wavelength light in an infrared ray band and a plurality of second pixels configured to sense second wavelength light in a visible light band; and
a color separating lens array disposed on the sensor substrate and configured to change a phase of the first wavelength light incident on the color separating lens array such that the first wavelength light is condensed to the plurality of first pixels, the color separating lens array comprising a plurality of first pixel corresponding regions corresponding to the plurality of first pixels and a plurality of second pixel corresponding regions corresponding to the plurality of second pixels,
wherein each of the plurality of first pixel corresponding regions and each of the plurality of second pixel corresponding regions comprises a plurality of nanoposts, the plurality of nanoposts being configured to change the phase of the first wavelength light incident on the color separating lens array,
wherein the plurality of nanoposts are configured to form a plurality of light condensing regions configured to condense the first wavelength light respectively on the plurality of first pixels, and
wherein an area of each of the plurality of light condensing regions is larger than an area of each of the plurality of first pixels.