Optical pic-kup
AssigneeOptware Corporation
InventorHideyoshi Horimai
Life of this patent
Estimating the term…
Abstract
An optical pick-up device that records and/or reproduces information on an optical information recording medium, through the use of holography, can prevent deterioration of recording and reproduction accuracy due to vibrations from exterior or fluctuations in the relative positional relationship with the recording medium. The optical pick-up device includes a pick-up body and a position adjusting device. The position adjusting device changes the position of the pick-up body in a direction perpendicular to a surface of the recording medium, in a direction parallel to the surface of the recording medium, and in such a direction as to change the inclination of the pick-up body with respect to the surface of the recording medium.
Claims9
An optical pick-up device comprising:
- a pick-up body for at least either recording information on an optical information recording medium on which information is recorded through the use of holography, or reproducing information from the optical information recording medium;
- and
- position adjusting means for adjusting a position of the pick-up body in order to correct a shift in a relative positional relationship between the pick-up body and the optical information recording medium,
- wherein the position adjusting means detects relative inclination between the optical information recording medium and the pick-up body, and, based on the results of the detection, changes the position of the pick-up body in such a direction as to change an inclination of the pick-up body with respect to the surface of the optical information recording medium.
Dependencies are inferred from the claim text.