The invention is directed is directed to a projection unit for a head-up display having an image generator, a mirror and a refractive lens which are arranged in a housing one behind the other in the light propagation direction. The beam path is directed to a windshield. Notably the mirror has a concave reflection surface, and the lens has a free-form surface at lease on one of the optically active surfaces (D-U and/or D-O).

 
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> Biological growth plate scanner with automated image processing profile selection

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