Abstract: Device and method for removing contaminant particles from an optical disk, the optical disk having an optical disk substrate, a reflective layer on the disk substrate, a first insulating layer on the reflective layer, a recording layer on the first insulating layer for recording/reproducing a data thereon/therefrom, and a second insulating layer on the recording layer, the device including an electrode pattern of a plurality of concentric circles on the optical disk except the recording layer, a third insulating layer on the electrode pattern to expose a region of the electrode pattern, and a number of connection electrodes in contact with the exposed electrode pattern for applying dust collecting voltages to the electrode pattern.

Abstract: High density near field optical recording/reproducing device, including a light source for emitting a bean of light, a converging lens for converging the light emitted from the light source, and a near filed light generating part formed of a material of which light transmittance is varied with light temperature sectors, thereby overcoming a limit of resolution coming from diffraction, whereby increasing a recording density, significantly.

Abstract: Light source module with two wavelengths including a first and a second laser diodes each for emitting a laser beam with a wavelength different from each other, and a submount formed between the first and second laser diodes having a vertical mirror surface vertical to bonding surfaces of the first and second laser diodes for reflecting laser beams from the first and second laser diodes in a same direction.

Abstract: Optical pickup head which makes a fine movement by a driver, and focuses an incident laser beam to a recording medium for recording/reproducing a data, including a micro mirror having at least one 45° mirror surface for reflecting the incident laser beam perpendicular to an incident direction, a focusing lens under the micro mirror for primary focusing of the laser beam reflected at the micro mirror, and an SIL (Solid Immersion Lens) under the focusing lens for secondary focusing of the laser beam focused primarily, thereby permitting fast and high precision data search.