Light projector

A light projector for polarizing light relative to the ground for increasing visibility from a vehicle through rain, fog, film of water on the ground, comprising:

• a light source being supported relative to the ground;
• a polarized light splitter that splits a beam of unpolarized light emitted from the light source into p-polarized light and s-polarized light,
• wherein a direction of vibration of electric field of the p-polarized light is parallel to a plane of incidence of the polarized light splitter, and
• the direction of vibration of electric field of the s-polarized light is perpendicular to the plane of incidence of the polarized light splitter;
• and
• means for emitting from the vehicle a first vertical polarized light, wherein the first vertical polarized light comprises one of:
• the p-polarized light provided without reflecting in the polarized light splitter and without changing an incident direction of vibration of electric field, and
• the s-polarized light reflecting in the polarized light splitter with an incident direction of vibration of electric field perpendicular to the p-polarized light,
• wherein if the plane of incidence of the polarized light splitter is perpendicular to the ground, then the p-polarized light comprises the first vertical polarized light, and
• if the plane of incidence of the polarized light splitter is parallel to the ground, then the s-polarized light comprises the first vertical polarized light;
• and
• a phase changer,
• wherein one of the p-polarized light and the s-polarized light not comprising the first vertical polarized light is changed into a second vertical polarized light utilizing the phase changer and is emitted, and
• the first and second vertical polarized lights are lights having a direction of vibration of electric field substantially vertical to the ground.