An Opto electronic system Error Detection approach to

摘要

Optoelectronic System Error Detection approach, to detect a deviation between a Reflective Surface Radiation and a plane of focus of a Lens System, an Optical Image formation System.It consists of a recording medium (1) in the form of a disc in a radial cross section; Radiation reflecting information structure that is situated on the Upper Face of the recording medium and comprises a Plurality of Information zones arranged along tracks of reports Tion (2); a Reading Beam (b) produced by a Radiation Source (3),A Semiconductor laser diode, which explores the structure of information; a Collimating Lens (4) which converts the divergent beam into a parallel Beam; an objective System (5).