Assemblies, sensors, methods of attachment, communication networks, and operational processes of a door-mounted camera apparatus for use with a door's peephole viewer. Some embodiments include a door bracket for attaching the camera apparatus to the door using removable adhesive or embedded magnets. Embodiments may include a movable mirror assembly which may be operated by a hand or by electrically powered mechanical actuator. Some embodiments include a peephole viewer apparatus with integrated sensors. Embodiments can include a digital display for viewing the camera's video output. Some embodiments can include a wired or wireless external sensor module which may detect whether a person is present in front of the door. Another embodiment includes a key-holder magnet.

Assemblies, sensors, methods of attachment, communication networks, and operational processes of a door-mounted camera apparatus for use with a door's peephole viewer. Some embodiments include a door bracket for attaching the camera apparatus to the door using removable adhesive or embedded magnets. Embodiments may include a movable mirror assembly which may be operated by a hand or by electrically powered mechanical actuator. Some embodiments include a peephole viewer apparatus with integrated sensors. Embodiments can include a digital display for viewing the camera's video output. Some embodiments can include a wired or wireless external sensor module which may detect whether a person is present in front of the door. Another embodiment includes a key-holder magnet.

A door window protector includes a mounting frame defining a first frame side, a second frame side opposite the first frame side, a frame opening extending between the first frame side and the second frame side, and a lock opening formed through the mounting frame at the second frame side; and a protective panel received within the frame opening and comprising a locking member, the protective panel movable relative to the mounting frame between an open position, wherein the protective panel is disposed proximate to the first frame side and the locking member is disengaged from the lock opening, and a closed position, wherein the protective panel is disposed proximate to the second frame side and the locking member engages the lock opening.

The door viewport with cross-door locking bar laterally spans the door frame with a viewport exterior lip on the door and an interior face plate near an interior of the door forming, in one instance, a mid-bar capture channel. Alternatively, the viewport has an interior extension coacting with a complementary interlocking element on the cross-bar's midpoint. Either construct holds the cross-door locking bar substantially at its mid-point. Cross-bar terminal end mounts removably attach the cross-bar to the door frame. One type of mount is an L-bracket. Another type of mount is a controllable transverse extension member forcing a door frame plate against the door frame. A user-controlled extension means forces the cross-door locking bar away from the door frame plate, with either a screw drive system or a grooved rod with spring loaded lever control.

The door viewport with cross-door locking bar laterally spans the door frame with a viewport exterior lip on the door and an interior face plate near an interior of the door forming, in one instance, a mid-bar capture channel. Alternatively, the viewport has an interior extension coacting with a complementary interlocking element on the cross-bar's midpoint. Either construct holds the cross-door locking bar substantially at its mid-point. Cross-bar terminal end mounts removably attach the cross-bar to the door frame. One type of mount is an L-bracket. Another type of mount is a controllable transverse extension member forcing a door frame plate against the door frame. A user-controlled extension means forces the cross-door locking bar away from the door frame plate, with either a screw drive system or a grooved rod with spring loaded lever control.

A shade adapted for covering a classroom viewing window and assisting with compliance with emergency protocol during an emergency is disclosed. The shade may include a plurality folds connected to each other by a plurality of hinges configured to cover a classroom viewing window. Emergency related information and status indicators may be revealed upon the unfolding of the shade to assist teachers, school officials, police, and others to comply with established school emergency protocol. The shade further fulfills the requirement that the classroom viewing window be covered during an emergency lockdown. The shade may function as a standard “Exit” sign during non-emergency time. Another shade may include a case holding a material portion with handles that enable the shade to be moved up and down.

A viewing window for insertion into a viewing opening in a ventilation and air-conditioning system and/or a climate chamber, the viewing window including two pane supports which can be connected to one another by a rotary joint that is prevented by a notched locking mechanism from accidentally coming loose.

A viewing window for insertion into a viewing opening in a ventilation and air-conditioning system and/or a climate chamber, the viewing window including two pane supports which can be connected to one another by a rotary joint that is prevented by a notched locking mechanism from accidentally coming loose.

Peep hole security systems and methods are provided including a threaded optical shaft having a bezel with a security pin extending from an interior surface of the bezel and a threaded interlocking cylinder including an interior flange. An optical shaft hole in a door receives the threaded optical shaft and a security pin hole in the door receives the security pin. The threaded optical shaft is then engaged with the threaded interlocking cylinder until the interior surface of the bezel contact the exterior surface of the door and the interior flange of the threaded interlocking cylinder contacts the interior surface of the door. Attempts to rotate the threaded optical shaft are prevented by the engagement of the security pin with the door.

Peep hole security systems and methods are provided including a threaded optical shaft having a bezel with a security pin extending from an interior surface of the bezel and a threaded interlocking cylinder including an interior flange. An optical shaft hole in a door receives the threaded optical shaft and a security pin hole in the door receives the security pin. The threaded optical shaft is then engaged with the threaded interlocking cylinder until the interior surface of the bezel contact the exterior surface of the door and the interior flange of the threaded interlocking cylinder contacts the interior surface of the door. Attempts to rotate the threaded optical shaft are prevented by the engagement of the security pin with the door.