The radiating channel optical unit, characterized in that it comprises an emitter, which comprises at least one radiating crystal with ultranarrow diagram flux orientation, enclosed in a housing made of an optically transparent material, performing the optical member function, the light exit surface of the housing / the optical element is formed spherical shape, wherein the radius of the sphere and the height of the optical element, the distance from the radiating surface of the crystal to the sphere poles connected by the relation of yc Ovia provide the desired divergence of the light flux emitter :, where α - angle light flux divergence of the optical emitter; l - the height of the optical element; r - the radius of the sphere of the optical element; γ - angular value pattern of the light flux emitting chip; n - refraction index of the optical element material.
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