Device for reading oblong segments of an advancing storage mediu

Details Device for reading oblong segments of an advancing storage mediu Device for reading oblong segments of an advancing storage mediu

1991-01-18

1993-06-08

Anderson, Bruce C.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369110, G11B 700

Patent

active

052185958

ABSTRACT:
A device for reading data from a multitrack magnetic tape or other storage media. The reading device includes an imaging device having a convex mirror and a concave mirror arranged to produce a magnification equal to -1. The device also includes a light source, a cylindrical lens and a detector device. The device is of compact dimensions, yet exhibits only slight aberrations and provides high resolution.

REFERENCES:
patent: 3913076 (1975-10-01), Lehureau et al.
patent: 4551827 (1985-11-01), Custer et al.
patent: 4771414 (1988-09-01), Yoshimatsu
patent: 4835380 (1989-05-01), Opheij et al.
patent: 4959824 (1990-09-01), Ueda et al.
patent: 4974219 (1990-11-01), Korth

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