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Confocally imaging optical system for measuring instrument, has shading element designed as center screen that is formed by half nominal diameter of aperture, where shading element is designed as elliptical center screen
Confocally imaging optical system for measuring instrument, has shading element designed as center screen that is formed by half nominal diameter of aperture, where shading element is designed as elliptical center screen
The system has a middle shaded optical lens around an optical-axis for fading out of caustic surface forming radiation. A shading element is provided for center shading, where the shading element is designed for a manipulation of the distribution of intensity in direction of the optical-axis. The shading element is superimposed on a lens surface, where the shading element is designed as circle-disk-shaped center screen that is formed by a half nominal diameter of the aperture. The shading element is designed as elliptical center screen.
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