Abstract: The optical system comprises at least one pair of adjacent light-guides (1a, 1b) of a longitudinal shape the surface of which comprises a shell (8) that connects two ends (6) of a light-guide (1a, 1b), and at least one pair of light sources (3), associated with the ends (6) of the light guides (1a, 1b) at the same side of the light guides (1a, 1b), to emit light rays (10) and to ensure their propagation in the direction from the end (6) of the light-guide (1a, 1b) further into the light-guide (1a, 1b) body. Either of the pair of the light-guides (1a, 1b) is equipped in its rear part with optical elements (2) to reflect light rays (10) to its longitudinal exit surface (7a) located on the shell (8) for their exit from the light-guide (1a,1b).

Abstract: The optical system comprises at least one pair of adjacent light-guides (1a, 1b) of a longitudinal shape the surface of which comprises a shell (8) that connects two ends (6) of a light-guide (1a, 1b), and at least one pair of light sources (3), associated with the ends (6) of the light guides (1a, 1b) at the same side of the light guides (1a, 1b), to emit light rays (10) and to ensure their propagation in the direction from the end (6) of the light-guide (1a, 1b) further into the light-guide (1a, 1b) body. Either of the pair of the light-guides (1a, 1b) is equipped in its rear part with optical elements (2) to reflect light rays (10) to its longitudinal exit surface (7a) located on the shell (8) for their exit from the light-guide (1a,1b).

Abstract: A projector unit is provided with a mechanism for changing the spatial distribution of a light beam. The projector unit includes a housing, an action element having a revolving shaft, a first diaphragm for cropping the light beam, wherein the first diaphragm is fixedly coupled to the shaft of the action element, a second diaphragm for cropping the light beam, wherein the second diaphragm is rotatingly coupled to the shaft of the action element, a first biasing element disposed between the second diaphragm and the housing, wherein the first biasing element regulates a positioning of the second diaphragm relative to the housing, and a second biasing element disposed between the first diaphragm and the second diaphragm, wherein the second biasing element regulates a spacing between the first biasing element and the second biasing element.

Abstract: A projector unit is provided with a mechanism for changing the spatial distribution of a light beam. The projector unit includes a housing, an action element having a revolving shaft, a first diaphragm for cropping the light beam, wherein the first diaphragm is fixedly coupled to the shaft of the action element, a second diaphragm for cropping the light beam, wherein the second diaphragm is rotatingly coupled to the shaft of the action element, a first biasing element disposed between the second diaphragm and the housing, wherein the first biasing element regulates a positioning of the second diaphragm relative to the housing, and a second biasing element disposed between the first diaphragm and the second diaphragm, wherein the second biasing element regulates a spacing between the first biasing element and the second biasing element.