| 摘要 |
An optical pickup device, which is capable of inhibiting peeling from a bonded interface and deviation of an optical axis from being caused even by long-term environmental variations, has a photonic device 1, a flexible printed substrate 2, a holding member 3, an optical pickup case 5 and a bonding connection 4 for bonding the holding member 3 and the optical pickup case 5 together. The adhesive enters an inside of the optical pickup case. The adhesive has a cross-sectional area on the outer surface of the optical pickup case in communication with the inside smaller than a cross-sectional area in the inside of the optical pickup case.
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