| 摘要 |
In an optical pickup apparatus for reproducing and/or recording information from/onto four kinds of optical information recording mediums, an optical path of a light flux entering to a first objective optical element when using the first objective optical element and an optical path of a light flux entering to a second objective optical element when using a second objective optical element are arranged to be different so that a position of an incident light flux entering into the first objective optical element when using the first objective lens and a position of an incident light flux entering into the second objective optical element when using the second objective optical element are different in an orthogonal direction to an optical axis.
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