Sanyo Electric Co., Ltd.

Sanyo Optec Design Co., Ltd.

Takamitsu Touno

Kiyoshi Hibino

Akira Iijima

An optical pickup unit comprising: an objective lens that focuses laser light on an optical disc; a lens holder that holds the objective lens; a coil that is fitted on the lens holder and capable of driving the lens holder; and a reinforcement member that is fitted on the lens holder and reinforces strength of the lens holder.

Optical pickup unit and optical disc apparatus

An optical pickup unit is disclosed which comprises: an objective lens that focuses laser light on an optical disc; a lens holder that holds the objective lens; a coil that is fitted on the lens holder and capable of driving the lens holder; and a heat transfer improving member that is fitted on the holder to cause heat to be radiated, wherein the heat is generated in the coil when the coil is energized.

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Tokyo, Japan

Takamitsu Touno