1. A system for biometric identification, the system comprising: a housing; at least one user window on a first side of the housing, the at least one user window adapted to accommodate at least one eye of a user positioned on a first side of the housing; at least one opposing window on a second side of the housing, the at least one opposing window aligned with the at least one user window, wherein transmission of images of objects external to the housing occur between the at least one user window and the at least one opposing window; at least one illumination source in the housing emitting photons through the at least one user window to be reflected from the at least one eye; and at least one image sensor in the housing for capturing an image according to the photons reflected from the at least one eye, the image having biometric identification data.