To be effective, the size of the mirror should be adapted to the distance separating the viewer and the mirror: the greater the distance, the larger the mirror lens should be.
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
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
(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.
GBP (£)
