US12613078 - Imaging apparatus with thermal augmentation
A thermal image-forming attachment for a sighting apparatus has a combiner for overlaying a generated thermal image from a display against a visible scene defined along an optical axis of the sighting apparatus, wherein the combiner intersects the optical axis between an objective lens and the visible scene. A first IR camera has a first field of view aligned with the sighting apparatus optical axis; a second IR camera has a second field of view narrower than the first field of view, aligned with the sighting apparatus optical axis. An image processor generates the thermal image on the display, wherein IR image content rendered from the second IR camera is centered within IR image content from the first IR camera. Collimating optics project the thermal image from the display toward the combiner as collimated light aligned with collimated light from the visible scene.
