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US 8,276,171 B2Granted
Pickup frame and optical pickup device
AssigneePanasonic Corporation
InventorsSatoshi Obase, Toshiaki Takasu, Hiroaki Suzuki
Life of this patent
Estimating the term…
Abstract
In an optical pickup device 3, a supporting base 18 that has a main-shaft bearing 6a with two concentric round holes to pass a main shaft 7 through is formed out of a synthetic resin. On the other hand, an optical base 19, which has a sub-shaft bearing 6b to pass a sub-shaft 8 through and which supports a light emitter 11, a beam splitter 12, a collimator lens 13 and a photodetector 17, is formed by metal die casting process. And a pickup frame 6 is formed by bonding the supporting base 18 and the optical base 19 together with an adhesive.
Claims7
A frame for use in an optical pickup device,
- wherein the frame includes a first base, which has been formed out of a metal, and a second base, which has been formed out of a resin and which is secured to the first base, and
- wherein the frame is arranged between a first shaft portion and a second shaft portion, which runs substantially parallel to the first shaft portion, and is movable parallel to the first shaft portion while being engaged with the first and second shaft portions, and
- wherein the first base includes:
- an optical element supporting portion for supporting optical elements for emitting a laser beam toward an optical recording medium and receiving light that has been reflected from the optical recording medium, and
- a first shaft bearing portion to engage with the first shaft portion, and
- wherein the second base includes a second shaft bearing portion to engage with the second shaft portion.
3 more elements
Dependencies are inferred from the claim text.