Patent ID: 11902637
Assignee: RAYTHEON COMPANY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC F  H  G | IPC G  H

Claim 10:
11. A method comprising:
focusing, using an objective lens of imaging optics, electromagnetic radiation to an intermediate image plane;
generating, using the imaging optics, an optical beam from the electromagnetic radiation;
capturing, using at least one imaging sensor, an image from the optical beam;
generating and transmitting a laser beam through the imaging optics;
reflecting, using a first-wavelength target of an intermediate alignment target moveably positioned at the intermediate image plane, a first spectral band of the laser beam to the at least one imaging sensor;
capturing, using a first imaging sensor of the at least one imaging sensor, a first-wavelength infrared image of the first spectral band;
transmitting, using the first-wavelength target, remaining spectral portions towards the objective lens;
moving a beam block into and away from the intermediate plane independent of the first-wavelength target, wherein the beam block is located on a side of the first-wavelength target closer to the objective lens; and
blocking, using the beam block, the remaining spectral portions from the objective lens when the beam block is moved into the intermediate image plane.