Patent AT-E400828-T1: [Translated] OPTICAL ELEMENT WITH MICROPRISM STRUCTURE FOR DIRECTING LIGHT BEAMS

An optical element (10, 10', 10'') for deflecting light beams (18, 19), which enter and re-emerge from the latter, in such a way that their angle of emergence (gamma) is limited, in particular for use as a luminaire-cover, having a plate-like core (11, 11', 11'') of transparent material which on one side is occupied by microprisms (12, 13) that taper-starting from their root (15)-forming furrows (22), wherein all of the top surfaces (14) of the microprisms form the light-entry face and the other side (21) of the core forms the light-emergence face, and wherein the top surfaces (14) of the microprisms are formed convexly or concavely in a continuous or non-continuous manner, and also a method for producing the optical element (10, 10', 10'').