Patent ID: 11927769
Assignee: METALENZ, INC.
Field: Optics (Instruments)
Classification: CPC G  B  H | IPC B  G

Claim 0:
1. A polarization imaging device comprising:
a metasurface lenslet array comprising:
a plurality of metasurface lenslets, wherein the plurality of metasurface lenslets comprise a plurality of first metasurface lenslets configured to diffract light with intensity proportional to a first polarization light in a first direction and intensity proportional to a second polarization in a second direction; and
a plurality of second metasurface lenslets interspersed among the first metasurface lenslets and configured to diffract the light with intensity proportional to a third polarization in a third direction and intensity proportional to a fourth polarization in a fourth direction; and

an image sensor positioned in the optical path of the first polarization and the second polarization, and wherein the image sensor comprises a plurality of image sensing units including:
a first image sensing unit positioned to sense the first polarization,
a second image sensing unit positioned to sense the second polarization,
a third image sensing unit positioned to sense the third polarization,
a fourth image sensing unit positioned to sense the fourth polarization, and
a fifth image sensing unit interspersed with one or more of the first, second, third, and fourth image sensing units, wherein the light incident on the fifth sensing unit has not passed through and been diffracted by either of the first metasurface lenslets or the second metasurface lenslets.