Patent ID: 7216354

Claim:
An optical scanning device for reading data stored on a rotating recording medium, comprising: a scanning head; at least one guide device for guiding the scanning head along a predefined track; at least one bearing device connected to the scanning head and for supporting the scanning head on the at least one guide device; and at least one elastic prestressing device for providing a static prestress on the at least one guide device in order to prestress the at least one guide device and the at least one bearing device connected to the scanning head against each other, wherein the static prestress acts at an angle to a plane of the recording medium in such a manner that the static prestress acts both perpendicular and parallel to the plane, wherein the at least one elastic prestressing device includes a leaf spring; wherein: the at least one bearing device includes: a bearing shell for accommodating the at least one guide device, and an elastic matrix element coupled to the scanning head.