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Multi-direction visibility
Dome Mirror FAQ
Choose full, half, quarter, and three-quarter domes for retail, school, hallway, and warehouse intersections.
Category resources
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Dome sizing guide
Use the sizing guide before choosing quarter, half, or full dome dimensions.
Dome mounting guide
Review chain, corner, wall, and ceiling installation options before ordering.
comparisonWhat is the difference between full dome, half dome, and quarter dome mirrors?
Full domes provide near 360-degree overhead visibility and are used above open areas or four-way intersections. Half domes are useful at T-intersections or wall-adjacent areas. Quarter domes fit corners and L-shaped corridor intersections.
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selectionWhen should I use a full dome mirror instead of a convex mirror?
Use a full dome when people, carts, forklifts, or customers approach from multiple directions and overhead panoramic visibility is needed. Use a wall-mounted convex mirror when the primary need is one or two approach directions around a corner or obstruction.
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selectionHow do I choose dome mirror placement by viewing angle?
Choose the dome format by the number of approach directions you need to see. A 360 degree full dome belongs at the center of a four-way intersection or open area. A 180 degree half dome belongs on a wall or at the end of a T-intersection. A 90 degree quarter dome fits tight into an inside corner for two-way corner coverage. A 270 degree corner dome wraps an outside corner where three approach directions need visibility. The Office-Eye is different from the ceiling domes: it mounts at eye level on a wall, door, or partition so someone leaving an office, conference room, elevator, or hallway can see cross traffic before stepping out.
360 degree viewing
Full dome mirror
Placement: Ceiling center of a four-way intersection
Use a full dome when traffic can arrive from all four directions. The mirror sits overhead at the crossing point, giving every approach a view into the other approaches before entering the intersection.
Best for: Four-way hallways, open retail floors, warehouse aisle crossings, schools, hospitals, and lobbies.
180 degree viewing
Half dome mirror
Placement: Wall or ceiling edge at a T-intersection
Use a half dome where one side is a wall and the open side needs visibility. The brochure diagram shows arrows fanning from the wall into the walkway, which matches aisle ends, doorways, and T-intersections.
Best for: Offices, hotels, hospitals, retail stores, stockroom doors, and hallway T-intersections.
90 degree viewing
Quarter dome mirror
Placement: Inside corner where two walls meet
Use a quarter dome when the hazard is limited to a tight corner. The mirror tucks into the ceiling-wall corner and shows the two perpendicular approach paths without projecting into the room.
Best for: Elevator corners, classroom corners, two-way intersections, and compact corridor turns.
270 degree viewing
270 degree corner dome
Placement: Outside corner, column, or projecting wall edge
Use a 270 degree corner dome where traffic wraps around an outside corner. It covers three approach directions while the wall or column blocks the fourth quadrant.
Best for: Hallway outside corners, column wraps, wraparound corridors, and corner transitions.
Eye-level hallway view
Office-Eye mirror
Placement: Wall, door, or partition at eye level
Use the Office-Eye where a person standing at a doorway, elevator, stairwell, or partition needs to see hallway activity before stepping out. It is read at pedestrian eye level rather than from the ceiling.
Best for: Offices, conference rooms, elevators, stairwells, hospitals, schools, restaurants, and reception areas.
Sources: Se-Kure dome mirror brochure
installationWhere should a 360 degree full dome mirror be placed?
Place a 360 degree full dome overhead at the center of a four-way intersection, open floor crossing, stockroom aisle crossing, or lobby where traffic can arrive from every direction. The brochure diagram places the dome at the center of the grid with arrows pointing north, south, east, and west. That means the mirror is intended to be read from all approaches, not from one wall only. Use a full dome when the hazard is multi-directional and users need awareness of the whole intersection before entering it.
360 degree viewing
Full dome mirror
Placement: Ceiling center of a four-way intersection
Use a full dome when traffic can arrive from all four directions. The mirror sits overhead at the crossing point, giving every approach a view into the other approaches before entering the intersection.
Best for: Four-way hallways, open retail floors, warehouse aisle crossings, schools, hospitals, and lobbies.
Sources: Se-Kure dome mirror brochure
installationWhere should a 180 degree half dome mirror be placed?
Place a 180 degree half dome against a wall, above an aisle end, or at the head of a T-intersection where the viewer needs to see activity across the open half of the space. The brochure shows the half dome on the wall side of a corridor with arrows fanning into the walkway. This is the right choice for offices, hotels, hospitals, retail stores, stockroom doors, and other T-intersections where ceiling or wall mounting can show both directions of cross traffic.
180 degree viewing
Half dome mirror
Placement: Wall or ceiling edge at a T-intersection
Use a half dome where one side is a wall and the open side needs visibility. The brochure diagram shows arrows fanning from the wall into the walkway, which matches aisle ends, doorways, and T-intersections.
Best for: Offices, hotels, hospitals, retail stores, stockroom doors, and hallway T-intersections.
Sources: Se-Kure dome mirror brochure
installationWhere should a 90 degree quarter dome mirror be placed?
Place a 90 degree quarter dome tight into an inside corner where two corridors, walls, or display runs meet. The brochure diagram shows the quarter dome nested into the corner with arrows covering the two legs of the corner and the diagonal view into the room. Use this format when a full or half dome would show more than the application needs, or when the mirror must stay tucked into a ceiling-wall corner for elevator, classroom, or two-way intersection safety.
90 degree viewing
Quarter dome mirror
Placement: Inside corner where two walls meet
Use a quarter dome when the hazard is limited to a tight corner. The mirror tucks into the ceiling-wall corner and shows the two perpendicular approach paths without projecting into the room.
Best for: Elevator corners, classroom corners, two-way intersections, and compact corridor turns.
Sources: Se-Kure dome mirror brochure
installationWhere should a 270 degree corner dome mirror be placed?
Place a 270 degree corner dome on an outside corner, column, or projecting wall edge where people approach from three directions. The brochure diagram shows the mirror wrapping the corner with arrows covering the corridor on one side, the corridor on the other side, and the forward approach. Choose this format for hallway outside corners and wraparound intersections where a quarter dome would miss one approach, but a full dome is unnecessary because one quadrant is blocked by the wall or column.
270 degree viewing
270 degree corner dome
Placement: Outside corner, column, or projecting wall edge
Use a 270 degree corner dome where traffic wraps around an outside corner. It covers three approach directions while the wall or column blocks the fourth quadrant.
Best for: Hallway outside corners, column wraps, wraparound corridors, and corner transitions.
Sources: Se-Kure dome mirror brochure
installationWhere should an Office-Eye mirror be placed?
Place the Office-Eye at eye level on a wall, door, or partition facing the blind approach. The brochure positions it near a doorway so a person leaving an office, conference room, washroom, elevator, or stairwell can see hallway activity before stepping into cross traffic. It is not a ceiling dome and should not be treated like a bracketed convex mirror. It mounts with screws, double-sided adhesive, or hook-and-loop and is best for pedestrian-height visibility in offices, hospitals, schools, restaurants, and reception areas.
Eye-level hallway view
Office-Eye mirror
Placement: Wall, door, or partition at eye level
Use the Office-Eye where a person standing at a doorway, elevator, stairwell, or partition needs to see hallway activity before stepping out. It is read at pedestrian eye level rather than from the ceiling.
Best for: Offices, conference rooms, elevators, stairwells, hospitals, schools, restaurants, and reception areas.
Sources: Se-Kure dome mirror brochure