摘要:
Disclosed is a lens driving apparatus. The lens driving apparatus includes a base, a yoke coupled to the base, having an upper surface formed with a hole, a closed side surface, and an opened bottom surface, a bobbin movably installed in an inner portion of the yoke, a lens module coupled to the bobbin to go in and out the hole according to movement of the bobbin, a magnet fixed to an inner portion of the yoke, a coil fixed to an outer portion of the bobbin while facing the magnets, and springs coupled to the bobbin to provide restoration force to the bobbin.
摘要:
Disclosed is a lens driving apparatus. The lens driving apparatus includes a base, a yoke coupled to the base, having an upper surface formed with a hole, a closed side surface, and an opened bottom surface, a bobbin movably installed in an inner portion of the yoke, a lens module coupled to the bobbin to go in and out the hole according to movement of the bobbin, a magnet fixed to an inner portion of the yoke, a coil fixed to an outer portion of the bobbin while facing the magnets, and springs coupled to the bobbin to provide restoration force to the bobbin.
摘要:
An optical disk drive with multiple optical pick-up heads is provided. The optical disk drive includes an upper cover, a base, a first carrier member, a second carrier member, a first limiting member, and a second limiting member. The base is disposed under the upper cover. The first carrier member disposed on the base and has a first optical pick-up head. The second carrier member is disposed on the upper cover and has a second optical pick-up head. The first limiting member is used for disposing the first end of the second carrier member on the upper cover. The second limiting member is used for disposing the second end of the second carrier member on the upper cover. The length of the first limiting member is larger than that of the second limiting member.
摘要:
The present invention provides a printed coil substrate for an optical disc actuator so that the sensitivity will change as little as possible when shifting in a focal direction and a tracking direction. Although the coil patterns laminated at a corresponding position have approximately same shape, center locations in shape of the tracking coil and the focus coils are displaced between the neighboring substrate layers, and the center locations in shape are displaced by a predetermined distance toward a direction of driving the movable portion driven by the coils. Even when the coil pattern of the first layer is moved in a direction of leaving from the position where magnetic force of the magnet is strong, the coil pattern of the second layer is simultaneously moved into the position where magnetic force of the magnet is strong. Therefore, the change of the sensitivity can be relatively compensated.
摘要:
An optical device includes a soft polymer film having a first and second surface. A first compliant electrode is connected to the first surface and a second compliant electrode is connected to the second surface. A rigid optical element is connected on the first and/or second surface or integrated into the polymer film.
摘要:
Provided is a lens driving unit for an optical pickup and an optical disc drive that employs the lens driving unit. The lens driving unit includes a lens frame in which an object lens and a plurality of driving coils are installed, and a plurality of suspension wires connected to the driving coils. The lens frame also includes a plurality of winding posts disposed on opposing sides of the lens frame and extending in a direction in which the suspension wires extend. According to various examples, coil ends of the driving coils are wound around the winding posts to electrically connect the driving coils to the suspension wires.
摘要:
In an optical pickup equipped with a semiconductor laser, electro-optical components such as a lens, and an objective lens drive device, the objective lens drive device includes objective lenses, a holder holding the objective lenses, a focusing coil, and tracking coils. The focusing coil is wound in parallel to the optical surface of the objective lens, and formed in a parallelogram shape having inclined portions provided near the tracking coils. The two tracking coils are placed on diagonal portions of the lens holder.
摘要:
A mounting structure of a magnetic member at least includes: a magnetic member; a magnetic coupling member mounted with the magnetic member; and an adhesive member bonding the magnetic member to the magnetic coupling member, either one or both of the magnetic member and the magnetic coupling member provided with an adhesion securing portion configured to secure adhesive strength, either one or both of the magnetic member and the magnetic coupling member provided with an adhesive member reservoir portion configured to lead the adhesive member to the adhesion securing portion.
摘要:
Provided is a lens driving unit for an optical pickup and an optical disc drive that employs the lens driving unit. The lens driving unit includes a lens frame in which an object lens and a plurality of driving coils are installed, and a plurality of suspension wires connected to the driving coils. The lens frame also includes a plurality of winding posts disposed on opposing sides of the lens frame and extending in a direction in which the suspension wires extend. According to various examples, coil ends of the driving coils are wound around the winding posts to electrically connect the driving coils to the suspension wires.
摘要:
An optical pickup device is provided with: a light source; an objective lens focusing light from the light source on an information recording surface of an optical recording medium; a lens holder holding the objective lens; and a collision prevention member provided on the lens holder, and preventing collision between the optical recording medium and the objective lens. The collision prevention member is formed with a sheet member, and is disposed on the lens holder so that a side surface, substantially parallel to a thickness direction, of the sheet member faces the information recording surface.