FIELD: lighting.
SUBSTANCE: device for lighting the inner side of a cylinder contains a collimator, a reflecting cone mounted on the optical axis, a conical mirror. Also, the device includes a ray convertion device that is based on cylindric lens arrays arranged around the optical axis, the second conical mirror, a hollow tube homogenizer with a corrugated surface, a toroidal lens or a toroidal mirror mounted on the output of the device.
EFFECT: ensuring uniform circular illumination of the focus area on the inner surface of the cylinder.
8 cl, 24 dwg
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