| 摘要 |
An optical storage device adapted to accept a cartridge composed of a cartridge case and an optical recording medium accommodated in the cartridge case. The optical storage device includes a base, a light source mounted on the base, an optical head having an objective lens for focusing light from the light source onto the optical recording medium, and a photodetector mounted on the base for detecting a regenerative signal from reflected light from the optical recording medium. The optical storage device further includes a cartridge holder having a main surface for holding the cartridge inserted in the optical storage device. The main surface of the cartridge holder is integrally formed with first and second spring arms adjacent to each other and extending substantially along a first side of the cartridge holder. The main surface of the cartridge holder is further integrally formed with a third spring arm extending substantially along a second side of the cartridge holder opposite to the first side. Each of the first, second, and third spring arms has a projection at a front end portion thereof.
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