公开(公告)号：US20210208375A1

公开(公告)日：2021-07-08

申请号：US17015502

申请日：2020-09-09

Applicant: Raytheon Company

Inventor： Timothy Johnson ,  Lacy G. Cook

IPC: G02B17/06 ,  G02B13/06

Abstract: An example optical system includes freeform mirrors configured to receive light from an object and to reflect the light among the freeform mirrors to produce an optical image of the object having positive distortion. The freeform mirrors include non-rotationally symmetric mirrors. The optical system also includes an along-track scanner having a line of imaging sensors configured to receive the optical image of the object from the freeform mirrors and to produce an image of the object having the positive distortion.