Patent ID: 9470521
Filing Date: 2016-10-18
CPC Classification: B82Y,G01C,H04N

Claim Text:
1. A detector system comprising: imaging optics having a focal plane; and an electromagnetic radiation (EMR) detector arranged to receive EMR from the imaging optics, having a detector axis perpendicular to the focal plane, and having a plurality of detector regions arranged progressively along the detector axis, the detector regions arranged to respectively detect EMR imaged from progressively different object distances from the imaging optics, wherein the EMR detector has a rod shape with the detector axis along an axis of the rod shape, wherein the detector regions comprise detector arrays arranged only on a radially outer surface of the rod shape, the EMR detector arranged to receive EMR from the imaging optics impinging only on the radially outer surface of the rod shape from radially outside the rod shape.