Patent ID: 8757850

Claim:
Lighting fixture ( 10 ) having a selected light distribution pattern comprising at least one LED light source ( 21 ), whose operation is ensured by a properly sized and designed electronic printed circuit board ( 20 ), and at least one housing ( 30 ) for containing said LED light source ( 21 ) and said electronic printed circuit board ( 20 ) and able to obtain a heat dissipation, wherein a lens ( 25 , 26 , 27 ) is placed over said LED light source ( 21 ), said lens ( 25 , 26 , 27 ) being selected from the group consisting of three different lenses ( 25 , 26 , 27 ), each of said three different lenses having different surface geometry that achieves a desired light distribution pattern said three lenses ( 25 , 26 , 27 ) being able to direct the light beam emitted from said LED light source ( 21 ), in order to obtain uniform illumination on surfaces to provide an illuminated area having a fixed geometry characterized in that: a first lens ( 27 ) is placed inside a cover body ( 23 ) made of polycarbonate, with a protective film ( 29 ) placed between said cover body ( 23 ) and said printed circuit board ( 20 ), said first lens ( 27 ) being positioned in a lighting fixture ( 10 ) fixed to a ceiling at 7 meters from the floor to generate an illuminated area on the floor with a square shape, or a second lens ( 25 ) is placed inside a cover body ( 23 ) made of polycarbonate, with a protective film ( 29 ) placed between said cover body ( 23 ) and said printed circuit board ( 20 ), said second lens ( 25 ) being positioned in a lighting fixture ( 10 ) fixed to a ceiling at 3 meters from the floor to generate an illuminated area on the floor with a rectangular shape, or a third lens ( 26 ) is placed inside a cover body ( 23 ) made of polycarbonate, with a protective film ( 29 ) placed between said cover body ( 23 ) and said printed circuit board ( 20 ), said third lens ( 26 being positioned in a lighting fixture ( 10 ) fixed to a ceiling at three meters from the floor to generate an illuminated area on the floor with a square shape.