Patent ID: 8116000
Filing Date: 2012-02-14
Classification: G02B

Abstract:
1. A method of real-time polarization difference sensing, the method comprising the steps of: directing a common stimulus input containing multiple differing planes of linear polarization along a linear input signal path; placing two faces that isolate two orthogonal planes of information from the common stimulus input in series along the linear input signal path, with a first of the two faces reflecting a first plane of information having a first linear polarization of the common stimulus input with a transmission portion of the common stimulus input passing through the first of the two faces and through either an air gap or a prism medium directly onto a second of the faces, so as to maintain isolation and separation of polarization components, the second of the two faces reflecting a second plane of information having a second linear polarization which is orthogonal to the first plane of information, with the transmission portion of the common stimulus input passing through the second of the two faces; capturing information from the first plane of information with a first sensor for a useful purpose; and capturing information from the second plane of information with a second sensor for a useful purpose determining a real-time polarization difference by subtracting one of the first plane of information or the second plane of information from the other.