Patent application number | Description | Published |
20080278831 | Focus Driving Apparatus With Impact Resistance - A focus driving apparatus with impact resistance is provided, including a lens carrier seat, a fixed base, a hanging element set, and a shake-resistant element set. The lens carrier seat is for carrying a lens. The hanging element set further includes a plurality of metal wires. The shake-resistant element set includes at least a soft resilient plate. One end of the metal wires of hanging element set is fixed to the lens carrier seat, and the other end penetrates the holes on the soft and resilient plate on the fixed base and is fixed to the shake-resistant element set. The shake-resistant element set can absorb the external impact force by deformation to provide protection to the hanging element set and lens carrier seat. | 11-13-2008 |
20120120509 | Apparatus Of Auto-Focus Module And Assembly Method Thereof - An apparatus of auto-focus module and the related assembly method are provided. The module includes a focus-driving module and a photo-sensor module. The focus-driving module includes a lens set and a focus-driving device. The outer circumference of the lens is a smooth surface and the inner circumference of the lens holder is also a smooth surface. The assembly method includes the steps of: sheathing the lens into the lens holder of the focus-driving device and fastening the lens to the lens holder to form a focus-driving module; maintaining a gap as the space for adjusting the locations of the focus-driving module and the photo-sensor module, and after adjustment, fastening the focus-driving module and the photo-sensor module. | 05-17-2012 |
20120170440 | ELECTROMAGNETIC ACTUATOR OF OPTICAL PICKUP HEAD - An electromagnetic actuator is provided, including a movable part and a base part. The movable part further includes at least an object lens, an object lens holder, a wire set, a first focus coil set, a second focus coil, a tilt coil set, and a track coil set. The object lens is placed inside object lens holder. One end of the wire set is fixed to object lens holder, and the other end is fixed to the base part so that the wire set is like a suspending wire set for hanging the object lens holder. The base part further includes a focus magnet set, a track magnet set and a tilt and focus shared magnet. The first focus coil set is located to correspond to focus magnet set, and the track coil set is located to correspond to the track magnet set, a second focus coil and a tile coil set in side-by-side layout are located to correspond to the tilt and focus shared magnet. When the current runs through the coils, the interaction of the poles of the magnets will cause the movable part to move in three different directions. | 07-05-2012 |
20120174138 | ELECTROMAGNETIC ACTUATOR OF OPTICAL PICKUP HEAD - An electromagnetic actuator is provided, including an object lens holder hanged by a set of wires forming suspended object. A focus coil set is fixed to object lens holder and placed surrounding focus and track shared magnet set. The focus coil located between object lens holder and focus and track shared magnet set is within magnetic field of focus and track shared magnet set. The focus coil located between tilt magnet set and magnetic field of focus and track shared magnet set is within the effective field of tilt magnet set and focus and track shared magnet set due to shielding effect of the yoke protruding plates. When a current runs through focus coil, a magnetic force in the focus direction is induced simultaneously within the range of tilt magnet set and focus and track shared magnet set so that object lens holder can focus. | 07-05-2012 |