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APPARATUS AND A METHOD FOR COMPENSATING SPHERICAL ABERRATION IN AN OPTICAL DISC DEVICE, PARTICULARLY FOR MORE EFFICIENTLY COMPENSATING SPHERICAL ABERRATION RESULTING FROM A FOCUS LENS PRODUCED IN AN ASPHERICAL SHAPE
APPARATUS AND A METHOD FOR COMPENSATING SPHERICAL ABERRATION IN AN OPTICAL DISC DEVICE, PARTICULARLY FOR MORE EFFICIENTLY COMPENSATING SPHERICAL ABERRATION RESULTING FROM A FOCUS LENS PRODUCED IN AN ASPHERICAL SHAPE
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机译：补偿光盘设备中球面像差的装置和方法，尤其是更有效地补偿球面形状的焦点透镜产生的球面像差
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摘要
PURPOSE: An apparatus and a method for compensating spherical aberration in an optical disc device are provided to efficiently improve the quality of data recording/reproducing quality.;CONSTITUTION: When an optical disc is inserted, a spherical aberration is compensated(S10,S11). At the same time, a current temperature is measured/stored(S12). A search operation is requested during a data recording operation or a reproduction operation(S13,S14). The current temperature at the requested point of time is measured. The temperature deviation between the measure current temperature and the current temperature stored at the point of time when the spherical aberration is calculated(S16). The spherical aberration is re-compensated according to the temperature deviation(S18).;COPYRIGHT KIPO 2011
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