BEAM DIRECTION CONTROLLING DEVICE AND LIGHT-EMITTING DEVICE Russian patent published in 2014 - IPC G02B5/04 G02B26/08 

FIELD: physics.

SUBSTANCE: device has a first (46) and a second (47) optical element. The second optical element (47) is arranged such that its first surface faces the second surface of the first optical element. The device allows relative displacement between the first and second optical elements to control points of incidence of light beams on the first surface of the second optical element. Each of the first and second optical elements has a prismatic plate, having a plurality of prismatic structures (48, 49). The first surface of each of the first and second optical elements is flat, and the second surface has said plurality of prismatic structures formed on it.

EFFECT: high reliability and easy control of the direction of transmitted light.

4 cl, 29 dwg