Optical position measuring device

An optical position measuring arrangement that includes an incremental measuring graduation and a scanning unit, which can be moved in relation to the incremental measuring graduation along a measuring direction and by which position-dependent incremental signals are generated from scanning the measuring graduation. The scanning unit includes a transparent support substrate and two incremental signal scanning arrangements arranged in the measuring direction. Each of the incremental scanning arrangements includes a light source and several incremental signal detector elements, wherein the incremental signal scanning arrangements are arranged on a side of the support substrate facing away from the incremental measuring graduation. The scanning unit includes several fields with scanning gratings, each field is spatially assigned to corresponding incremental signal detector elements and is arranged between the incremental signal scanning arrangements and the support substrate, wherein the scanning gratings are arranged so that partial incremental signals with predetermined phase relations are generated from the incremental signal detector elements.