Optical alignment system for aligning a multiple gap tape head a

Details Optical alignment system for aligning a multiple gap tape head a Optical alignment system for aligning a multiple gap tape head a

1992-02-19

1993-10-26

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356399, 356400, 356401, 356363, 360125, 360137, 250561, 33276, G01B 1114

Patent

active

052570916

ABSTRACT:
An optical alignment system for aligning a multiple gap tape head assembly of a tape drive, including a cartridge plate insertable in a tape drive and having a first surface mirror that is parallel to a reference plane for the drive when the plate is inserted in the drive, a microscope objective imaging lens for providing images of the head gaps of the tape head assembly, a video camera and display for providing an operator viewable display of the output of the imaging lens, translation apparatus for moving the imaging lens, and an interferometer cooperating with the first surface mirror for maintaining the imaging lens at a constant distance relative to the first surface mirror as the translation apparatus moves the imaging lens from one head gap to another, such that the imaging lens moves in a plane parallel to the reference plane for the drive. By maintaining the imaging lens at a constant distance relative to the first surface mirror reflecting surface, as the imaging lens is moved from one head gap to another, the misalignment of a tape head assembly can be detected and corrected by an operator by reference to the images of the head gaps which are displayed with a reticle that is at a fixed location in the field of view of the imaging lens.

REFERENCES:
patent: 4537509 (1985-08-01), Kronfeld

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