OPTICAL HEAD, METHOD FOR ADJUSTING INCIDENT POSITION OF LIGHT RAY TO OPTICAL MEMORY MEDIUM, OPTICAL MEMORY REPRODUCING DECICE, AND METHOD FOR REPRODUCING INFORMATION FROM OPTICAL MEMORY MEDIUM

摘要

PROBLEM TO BE SOLVED: To miniaturize an optical head of an optical memory reproducing device.;SOLUTION: The optical head 11 is provided with a mirror 112 the direction of which is changed to be turned with an axis 112a for making light rays to a core layer as a center, so that it is unnecessary to need a large-sized incident light ray control mechanism to reduce the dead space in the optical head, thereby miniaturizing the optical head of the optical memory reproducing device.;COPYRIGHT: (C)2006,JPO&NCIPI