| 摘要 |
A lens (L) intended to be associated with a light source (S) to produce a lighting module allowing substantially homogeneous lighting of a determined area to be lit, said lens defining a rear face (Lr), intended to be oriented towards the light source (S), and a front face (Lf), intended to be oriented towards the area to be lit, said light source (S) defining an optical axis (O) and emitting incident beams of light (Fi) reaching the rear face (Lr) at an angle a relative to the optical axis (O) and refracted beams of light (Fr) leaving the front face (Lf) at an angle ß relative to the optical axis (O), characterized in that the value of the angle ß corresponds, for at least some incident beams of light (Fi) at an angle a, to an arc tangent function of type ß = a.arctan (b.a + c)+d, the length of at least one first line passing through the zone to be lit and containing the optical axis (O). |
