Patent ID: 7484230

Claim:
A scanning device for an apparatus for reading from or writing to optical recording media, comprising: a base block having at least one mounting device with a receptacle fixed to the base block along an optical axis for an optical component arranged on a cylindrical holder, with setting elements, which make an adjusting movement of the holder in the receptacle possible along the optical axis, and with a spring device acting on the respective holder in the direction of the receptacle transversely in relation to the optical axis, wherein the receptacle has a hollow-cylindrical bearing surface corresponding to the holder, wherein arranged on the circumference of the holder and on the bearing surface are thread segments which correspond to one another and engage in one another, and convert a rotational movement of the holder into an axial movement, wherein an engagement opening for an adjusting tool for performing a rotational movement is formed on the holder and wherein this engagement opening is accessible through an opening in the base block.