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

Claim 0:
1. An apparatus comprising:
imaging optics comprising (i) an objective lens configured to focus electromagnetic radiation to an intermediate image plane and (ii) one or more optical devices configured to generate an optical beam from the electromagnetic radiation;
at least one imaging sensor configured to capture an image from the optical beam;
a beam generator configured to generate and transmit a laser beam through the imaging optics; and
an intermediate alignment target configured to be moveably positioned at the intermediate image plane of the imaging optics, the intermediate alignment target comprising:
a first-wavelength target configured to:
reflect a first spectral band of the laser beam to a first imaging sensor of the at least one imaging sensor, the first imaging sensor configured to capture a first-wavelength infrared image of the first spectral band; and
transmit remaining spectral portions of the laser beam towards the objective lens; and

a beam block located on a side of the first-wavelength target closer to the objective lens and configured to:
move into and away from the intermediate image plane independent of the first-wavelength target; and
block the remaining spectral portions from the objective lens when moved into the intermediate image plane.