Patent ID: 7042829
Filing Date: 2006-05-09
Classification: B82Y,G11B,Y10S

Abstract:
1. A recording apparatus for reproducing or recording information recorded on a recording medium by utilizing near-field light, the recording apparatus, comprising: an aperture element having two microscopic apertures to create or scatter near-field light; a light illuminating means for illuminating illumination light to the recording medium such that near-field light is created on a surface of the recording medium; a first light detecting means for detecting propagation light caused by scattering the near-field light by one of the microscopic apertures, turning this into a reproduced signal; a second light detecting means for detecting propagation light caused by scrattering the near-field light by the other of the microscopic apertures, turning this into a control signal; a control means for controlling a spacing between the aperture element and the recording based on the control signal.