SYSTEM FOR NEAR FIELD OPTICAL RECORDING

摘要

PURPOSE: A system for near field optical recording is provided to increase yield of products by enlarging tolerance in manufacturing the system and assembling parts of the system, improve optical properties by minimizing a wavefront error. CONSTITUTION: A system for near field optical recording includes a light source(60) generating a light used for optical recording and reproducing, an optical pick-up part transforming the light generated from the light source into a parallel light, a wavefront aberration compensating element(64) controlling a diverging angle or a converging angle of an incident beam traveling parallel, an optical head slider mounting a focusing lens(67), wherein the wavefront aberration compensating element controls the diverging angle or the converging angle of the incident beam by controlling a gap between a first lens(64a) and a second lens(65b).