6 results about "Optical disc drive" patented technology

The application discloses a drive mechanism of an optical disc machine and an optical pickup assembly thereof, which is connected between a screw rod of a stepping motor and the optical pickup assembly, and enables the optical pickup assembly to move back and forth along the axial direction of main guide rods and vice guide rods. The drive mechanism comprises a special-shaped bearing connecting piece and a spring. The bearing connecting piece is provided with oblique teeth which are engaged with the screw rod. The spring is arranged at the back of the oblique teeth, so that the oblique teeth are always engaged with the screw rod. The bearing connecting piece is more stable and reliable when being driven by the oblique teeth and the screw rod. In combination with the pre-pressing force of the elastic element, the reliable and stable tracking movement of the optical pickup assembly is effectively ensured. The structure is reasonable and simple, the installation and operation are convenient, and the maintenance cost after sale is remarkably reduced. The scheme is practical and effective, and especially applied to the core of the optical disc machine (commonly known as the optical drive) configured by the traditional desktop computer, so that good profit value can be realized.

1. Name of the product in this design: Optical disc drive mounting bracket (1). 2. Purpose of this design: For mounting and securing optical disc drives. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

To provide an optical disc drive (1) with a smaller number of components. The optical disc drive (1) includes a turntable (30) for rotating an optical disc, a chuck pulley (15), a top frame (10) having an opening (10a) formed at a position overlapping the chuck pulley (15) in a plan view, and a first arm (141) that holds the chuck pulley (15), in which the first arm (141) contacts a first guide section (101) of the opening (10a) and changes the posture so as to move the chuck pulley (15) between the stand-by position and the chuck position at which the first arm (141) and the turntable (30) sandwich the optical disc depending on a position at which the first arm (141) contacts the first guide section (101).

An optical disc drive, memory, and electronic device are provided for an optical disc having a single servo layer and multiple recording layers. A dichroic mirror is present inside the optical disc drive. The beam of a first light source is irradiated onto the surface of one side of the dichroic mirror and then reflected onto the recording medium of the optical disc for reading and writing data. The beam of a second light source may pass directly through the dichroic mirror and be transmitted to the servo layer of the recording medium of the optical disc. The dichroic mirror may be fastened inside the optical disc drive via a movable component. The movable component may change the orientation of the dichroic mirror to adjust the relative position between the propagation direction of the beam of the first light source and the propagation direction of the beam of the second light source, thereby eliminating errors that occur during the installation and use of the optical disc drive. The optical disc drive in this application has advantages such as fewer changes to the internal structure, a simpler implementation process, and high control accuracy. When servo control is performed accurately and at low cost via the beam of the second light source in the servo layer, the beam of the first light source is irradiated onto the center of the data track of each recording layer of the optical disc.

1. Name of the product in this design: Optical disc drive mounting bracket (2). 2. Purpose of this design: For mounting and securing optical disc drives. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.