Abstract: The present disclosure provides a rail mount for mounting a device on a rail. According to an embodiment, the mount comprises a frame having a length along a first direction, a width along a second direction, and a height along a third direction; a clamp operatively connected to the frame to be slidable along the second direction; an adjustment cam operatively connected to the frame to be rotatable around a first axis extending along the third direction; and a lever cam operatively connected to the adjustment cam to be rotatable around a second axis extending along the third direction. The lever cam is configured to translate a rotary force applied thereto into a linear force applied to the clamp along the second direction. The adjustment cam is configured to shift the second axis closer to or further from the frame along the second direction when the adjustment cam is rotated.

Abstract: A reflex sight comprises two apertures. One aperture is a direct view optical path of the target scene. The other aperture is a digital (e.g., thermal) camera or image intensifier. A beam combiner with two reflective surfaces (for example, a Bauernfeind, Penta, or other prism bonded to a wedge prism) and afocal eyepiece optics overlay the digital image or intensified image onto the direct view scene with matched magnification.

Abstract: A laser illuminator emitting a circular profile of substantially uniform intensity is presented. The laser illuminator may include a heat sink configured to optically couple to a laser light source. The heat sink may include a beam dump cavity configured to absorb light from the laser light source, and a circularizer aperture having a cylindrical, flat-top opening and being configured to shape a portion of laser light emitted from the laser light source to exit the heat sink. The laser illuminator may also include a collimation lens configured to collect the light exited from the heat sink and provide a focused beam of light, and a scatter clean-up aperture optically coupled to the collimation lens. The scatter clean-up aperture may be configured to absorb scatter laser light rays, and provide from the focused beam of light an output beam of light comprising a circular profile of substantially uniform intensity.