| 主权项 |
1. An apparatus for imaging a section of a medium which receives and returns light, the section of the medium having features (“Polarization Sensitive Features”) which return light according to the polarization of the received light, the apparatus comprising:
an optical system for directing light in beams of different polarization in the medium along an optical axis and returning light from the medium, the beams of returned light differentiated according to the light returned from the Polarization Sensitive Features, the optical system comprising:
a birefringent wave plate through which the light and the returned light are transmitted; anda pinhole lens assembly configured to transmit the returned light through a pinhole aperture; and a detector configured to receive the returned light from the pinhole lens assembly, the detector having at least two sensors, wherein each sensor is configured to receive a different portion of the returned light and produce an electrical signal in response to the corresponding portion of received light. |
