Abstract: Optical bridges including a bridge body configured to be mounted directly or indirectly onto a head-worn device and at least one rail operatively engaged with the bridge body, in which the at least one rail having a first end and a second end. The optical bridges also include a first stopblock located at or proximate to the first end and a second stopblock located at or proximate to the second end. The at least one rail has a first side portion located between the first stopblock and the bridge body and a second side portion located between the second stopblock and the bridge body. Systems including an optical bridge and one or more optical devices directly or indirectly releasably coupled to the optical bridge are also provided.

Abstract: Optical bridges including a bridge body configured to be mounted directly or indirectly onto a head-worn device and at least one rail operatively engaged with the bridge body, in which the at least one rail having a first end and a second end. The optical bridges also include a first stopblock located at or proximate to the first end and a second stopblock located at or proximate to the second end. The at least one rail has a first side portion located between the first stopblock and the bridge body and a second side portion located between the second stopblock and the bridge body. Systems including an optical bridge and one or more optical devices directly or indirectly releasably coupled to the optical bridge are also provided.

Abstract: Optical bridges including a bridge body configured to be mounted directly or indirectly onto a head-worn device and at least one rail operatively engaged with the bridge body, in which the at least one rail having a first end and a second end. The optical bridges also include a first stopblock located at or proximate to the first end and a second stopblock located at or proximate to the second end. The at least one rail has a first side portion located between the first stopblock and the bridge body and a second side portion located between the second stopblock and the bridge body. Systems including an optical bridge and one or more optical devices directly or indirectly releasably coupled to the optical bridge are also provided.

Abstract: Night vision refocus devices are provided, in which the night vision refocus devices include a housing comprising (i) a proximate end configured to couple to a lens frame (e.g., housing an objective lens) of a night vision device and a distal end, (ii) a faceplate operably connected to the housing, in which the faceplate includes a faceplate aperture, and (iii) an aperture-selection component (ASC) rotatably mounted directly or indirectly to the faceplate. The ASC includes a plurality of individual refocusing-apertures (IFAs) including a first IFA having a first area and a second IFA having a second area, in which the first area is larger than the second area. The first IFA is aligned with the faceplate aperture when the ASC is oriented in a first position, and the second IFA is aligned with the faceplate aperture when the ASC is oriented in a second position.