Optical pickup apparatus

摘要

An optical pickup apparatus has an objective lens, a lens holder that mounts the objective lens, a main frame holding the lens holder, and first and second inclination angle adjusting mechanism for adjusting angles of inclination of the objective lens. A main shaft guide frame is mounted on one side of the main frame. A main shaft mounted on the main shaft guide frame for guiding the objective lens in a radial direction of an optical disc. An auxiliary shaft guide frame is mounted on another side of the main frame. An auxiliary shaft is mounted on the auxiliary shaft guide groove to allow the objective lens to slidably move in parallel with the main shaft. The first inclination angle adjusting mechanism has a first bearing shaft for rotatably supporting the main shaft guide frame about a first axis with respect to the main frame. The main shaft defines a second axis extending generally in parallel with the main shaft and perpendicular to the first axis. The second inclination angle adjusting mechanism has a second bearing shaft for rotatably supporting an auxiliary shaft guide frame with respect to the main frame about a third axis that is located between the main shaft and the auxiliary shaft and extends in parallel with the second axis.