Switchable imaging polarimeter and method

Details Switchable imaging polarimeter and method Switchable imaging polarimeter and method

2008-12-11

2011-11-01

Lyons, Michael A (Department: 2877)

Optics: measuring and testing

By polarized light examination

With polariscopes

C359S627000, C359S629000

Reexamination Certificate

active

08049889

ABSTRACT:
A polarimeter and method of polarizing incoming light includes an optical assembly, a first adjustable circular retarder that rotates the polarization content of incoming light, a polarization beam splitter that receives light from the adjustable circular retarder and polarizing the light into a first portion of light having a first polarization and a second portion of light having a second polarization. The first portion of light is directed to a focal plane and the second portion of light is directed to the optical assembly. The optical assembly is switchable between a polarizing mode of operation in which the first portion of light is viewable at the focal plane in absence of the second portion of light and an imaging mode of operation in which the first portion of light and the second portion of light are viewable at the focal plane.

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