Abstract: Disclosed is a method of attaching components of an optical head. In one embodiment, first and second optical assemblies of the optical head are positioned adjacent to each other. The first optical assembly may include a first optical element, and the second optical assembly may include a second optical element. Both of the first and second optical elements are configured to transmit light for reading or writing data to an optical data storage media. The position of a first optical assembly is adjusted with respect to the second optical assembly until the first optical element and second optical elements are in optical communication with each other. Thereafter, the first and second optical assemblies are rigidly connected while the first and second optical elements are in optical communication with each other.

Abstract: Disclosed is a method of attaching components of an optical head. In one embodiment, first and second optical assemblies of the optical head are positioned adjacent to each other. The first optical assembly may include a first optical element, and the second optical assembly may include a second optical element. Both of the first and second optical elements are configured to transmit light for reading or writing data to an optical data storage media. The position of a first optical assembly is adjusted with respect to the second optical assembly until the first optical element and second optical elements are in optical communication with each other. Thereafter, the first and second optical assemblies are rigidly connected while the first and second optical elements are in optical communication with each other.

Abstract: Disclosed is a method for attaching components of an optical head. In one embodiment, a substrate and a light source assembly are positioned adjacent to each other. The light source assembly is configured to generate light for reading or writing data to an optical data storage media. The light source assembly includes a first and second alignment marks, and the substrate includes first and second alignment marks. The position of the light source assembly is adjusted with respect to the substrate until a line extending between the first and second alignment marks of the light source assembly is substantially parallel to a line extending between the first and second alignment marks of the substrate. Thereafter, a rigid connection is created between the light source assembly and the substrate.

Abstract: According to the method of this invention, a hub is placed at a machine center of an hub alignment and bonding tool and a data storage disk is placed loosely on the hub in such a way that the disk can be translated with respect to the hub. A curable adhesive is interposed between the hub and the disk. The disk has a data region which includes spiral or circular data tracks. A number of video cameras are focused on an edge of the data region at different locations. The locations of edge recorded in the camera are used to calculate whether the geometric center of the data region is within a predetermined tolerance of the hub center. The respective locations of the center of the data region and the hub center and the distance between the two centers are displayed on a monitor. Using a pair of micrometers which abut the edge of the disk, an operator adjusts the location of the disk until the geometric center of the data region is within the predetermined tolerance of the hub center.