Apparatus for reading an optically readable information...

G - Physics – 11 – B

Patent

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352/32.2

G11B 7/00 (2006.01) G11B 7/125 (2006.01) H04N 5/76 (2006.01)

Patent

CA 1188800

ABSTRACT: " Apparatus for reading an optically readable information structure on a record carrier". An apparatus is described for reading an optical information structure arranged in tracks. By the use of a substantially rotationally symmetrical element having an annular radiation-attenuating peripheral portion cross-talk between the tracks as a result of obliquity of the information structure can be reduced substantially.

414417

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