US 12,460,970 B2
Nanophotonic hyperspectral imaging
Byounghee Lee, Boise, ID (US); Robert Michael Gravelle, Jr., Boise, ID (US); and Swarnal Borthakur, Boise, ID (US)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed on Feb. 29, 2024, as Appl. No. 18/591,675.
Prior Publication US 2025/0277698 A1, Sep. 4, 2025
Int. Cl. G01J 3/02 (2006.01); G01J 3/28 (2006.01)
CPC G01J 3/0205 (2013.01) [G01J 3/2803 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An image sensor pixel, comprising:
a plurality of photodetectors including at least a first photodetector and a second photodetector;
a first spectral router positioned above at least the first photodetector and the second photodetector, wherein the first spectral router is configured to:
direct incident light in a first subset of a first color wavelength range to the first photodetector, and
direct incident light in a second subset of the first color wavelength range to the second photodetector; and
a second spectral router positioned above the first spectral router and configured to:
direct the incident light in the first subset and the second subset of the first color wavelength range to the first spectral router, and
direct incident light in a second color wavelength range to one or more neighboring image sensor pixels.