Patent ID: 11935274
Assignee: WORLDCOIN FOUNDATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A method of employing an iris scanning device, comprising:
receiving, at front end optics of the iris scanning device, a first optical signal representative of a first eye of a person and a second optical signal representative of a second eye of the person;
splitting the first optical signal and the second optical signal at a polarization beam splitter of the iris scanning device such that a first portion of the first optical signal having a first polarization and a second portion of the second optical signal having a second polarization optically propagate to a polarization selector of the iris scanning device, wherein optical propagation of a second portion of the first optical signal having the second polarization and a first portion of the second optical signal having the first polarization are inhibited, and wherein the first polarization and the second polarization are orthogonal to each other;
selectively allowing, employing the polarization beam splitter, a passed optical signal to be optically propagated to a lens of the iris scanning device during a time period and inhibiting a blocked optical signal from being optically propagated to the lens during the time period, the passed optical signal being one of the first portion of the first optical signal or the second portion of the second optical signal during the time period, the blocked optical signal being a differing one of the first portion of the first optical signal or the second portion of the second optical signal during the time period, and the lens causes the passed optical signal to be incident on a camera sensor during the time period; and
performing image processing on an output signal of the camera sensor to generate iris scan data for one of the first eye or the second eye of the person during the time period.