METHOD FOR RECORDING AND READING OF OPTICAL DISK

摘要

PROBLEM TO BE SOLVED: To eliminate influences of crosstalk between recording tracks. SOLUTION: The recording image is recorded in an optical disk with a specified regularity. The reading light beam is divided into two beams, and one light beam is symmetrically converted around a plane as the conversion plane perpendicular to the recording track direction and passing the optical axis, and then the propagation direction is aligned to detect interference light.