The invention presents {TAIL ~ an optical element} with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as {HEAD ~ an optical head} and an optical recording/reproducing apparatus using such an optical element 
The invention presents { TAIL ~ an optical element } with which an optical head can be configured , in which there is little deterioration of the correctional effect when the objective lens shifts , as well as { HEAD ~ an optical head } and an optical recording / reproducing apparatus using such an optical element
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH