Patent ID: 7362667

Claim:
An optical information reproduction apparatus comprising: an optical pickup including: optical beam sources for generating optical beams having at least a first and a second wavelengths for accessing at least a first and a second information recording media, respectively, an object lens for focusing an optical beam generated from one of the optical beam sources and irradiating the optical beam to one of the information recording media, and a focus actuator for operating the object lens in a direction of an optical axis of the optical beam; a focus servo unit for controlling a position of the object lens, to thereby move the focus of the optical beam to a just focus point where the focus of the optical beam meets with an information recording surface of said one of the information recording media; a first focus search unit for controlling the object lens to move toward said one of the information recording media; a second focus search unit for controlling the object lens to move away from said one of the information recording media; a first focus servo lead-in unit for converting an operation of the first focus search unit to an operation of the focus servo unit during the operation of the first focus search unit; and a second focus servo lead-in unit for converting an operation of the second focus search unit to an operation of the focus servo unit during the operation of the second focus search unit, wherein, if a focus servo is led in by using the optical beam having the first wavelength, the focus servo is led in by using the second focus servo lead-in unit, and if the focus servo is led in by using the optical beam having the second wavelength, the focus servo is led in by using the first focus servo lead-in unit, and wherein the first wavelength of the optical beam source is different from the second wavelength of the optical beam source.