Retro-reflector used in traffic safety signs
OwnerBongju Kiminventor
Life of this patent
Estimating the term…
Abstract
A retro-reflector has at least one retro-reflecting element that has high retro-reflection efficiency and a very wide retro-reflecting range. The retro-reflecting element includes a mother reflecting corner including a communal reflecting surface that is an optical surface of a single geometrical plane, and a conceptual stepped surface that meets the communal reflecting surface at a right angle; and a plurality of subsidiary reflecting corners that are arranged along the stepped surface such that corners thereof meet the communal reflecting surface at a right angle, and each including a pair of exclusive reflecting surfaces, which are optical surfaces in a single geometrical plane and meet at a right angle.
Claims16
A retro-reflector used in traffic safety signs having a plurality of retro-reflecting elements, wherein the retro-reflecting elements are densely arranged in a regular pattern on a thin object and each of the retro-reflecting elements includes a mother reflecting corner including a communal reflecting surface which is an optical surface formed as a single geometrical plane and a conceptual stepped surface that meets the communal reflecting surface at a right angle;
- and a plurality of subsidiary reflecting corners that are arranged along the stepped surface such that corners thereof meet the communal reflecting surface at a right angle, and each including a pair of exclusive reflecting surfaces that are the optical surfaces of a single geometrical plane and meet at a right angle.
A retro-reflector used in traffic safety signs having at least one retro-reflecting element which includes a mother reflecting corner and a plurality of subsidiary reflecting corners meet the mother reflecting corner at a right angle, wherein, the mother reflecting corners have a corner direction Dm that is deflected relative to a normal of a corner incident plane of the mother reflecting corner at a deflection angle αm defined as follows:
- 0<αm<45°
Dependencies are inferred from the claim text.