Optical tape end sensing arrangement for magnetic tape cassette

Details Optical tape end sensing arrangement for magnetic tape cassette Optical tape end sensing arrangement for magnetic tape cassette

G - Physics

11

B

352/21.23

G11B 15/18 (2006.01) G11B 23/04 (2006.01) G11B 23/087 (2006.01)

Patent

CA 1334111

A tape cassette arrangement includes structures formed integrally with the cassette halves or simply fitted into the light transmission apertures. Specific embodiments of the invention include light polarizing elements which are fitted into apertures formed in the sides of the cassette, corrugations on the interior of the cassette proximate the apertures, and shielding walls which are located to block light and in particular that light which tends to enter through a large window provided in the upper surface of the cassette and through which the status of the tape is visible.

563055

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