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Convention Paper

A Laser Scanning Phonograph Record Player

Authors: Heine, William K.

AES Convention 57 · Paper 1257 · May 1977

Abstract

When a laser beam is focused on a 45/45 phonograph record groove, the reflected light pattern is a curvilinear projection of the groove cross section. The position of the light pattern varies in response to the groove engraving. This paper describes one method for detecting these positional variations, and subsequent playback of the recording.

Details

Published in
AES Convention 57
AES Convention
57
Paper number
1257
Publication date
May 6, 1977
Type
Convention Paper