Radius of angle of convexity

The amount of angle of convexity of a mirror determines the field of vision and must be adapted to the number of directions wished to be viewed.

The more convex the mirror, the more panoramic a view the user will have.

2 directional mirror A 2 directional mirror  has an angle of convexity for a field of vision of approximately 90° used at junctions where users are coming from 2 different directions.

 3 directional mirror A 3 directional mirror has an angle of convexity for a field of vision of approximately 180° used at junctions where users are coming from 3 different directions.

 4 directional mirror A 4 directional mirror (half-sphere hemispheric mirror) has an angle of convexity for a field of vision of approximately 360° suspended at junctions where users are coming from 4 different directions.