公开(公告)号：US10886688B1

公开(公告)日：2021-01-05

申请号：US16117527

申请日：2018-08-30

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Kevin W. Peters ,  Chapin T. Johnson ,  Frank N. Makrides ,  Kurt P. Neeb

IPC: H01S3/00 ,  H01S3/101 ,  G02B7/182 ,  G02B26/08

Abstract: A laser pointing apparatus and a method of calibration therefor utilizing a precision machined, highly reflective alignment cube to precisely calibrate the laser pointing system is provided. The calibration method can allow the calculation of the position of a transmitted beam after it leaves an azimuth mirror to high degree of accuracy over large distances.

公开(公告)号：US10697755B1

公开(公告)日：2020-06-30

申请号：US16295846

申请日：2019-03-07

Applicant: BAE Systems Information and Electronic Systems Integration Inc.

Inventor： Kevin W. Peters ,  Chapin T. Johnson

IPC: G01B11/00 ,  G01B11/26

Abstract: Methodology for calibrating a rotating mirror system includes: measuring a normal of a first fiducial of the mirror system; measuring vectors to a second fiducial of the mirror system, each vector being measured at a different angle of rotation about an azimuth axis of rotation of the mirror system; calculating the azimuth axis of rotation using the measured vectors; creating a base coordinate system from the measured first fiducial normal and the calculated azimuth axis of rotation; and for each of a first mirror and a second mirror of the mirror system, measuring normals of the mirror at multiple angles of rotation, calculating an axis of rotation of the mirror using the measured normals, creating a mirror coordinate system from the measured normals and the calculated axis of rotation of the mirror, and calculating a translation and rotation matrix from the mirror coordinate system to the base coordinate system.