Registers – Coded record sensors – Particular sensor structure
Patent
1990-02-15
1991-07-02
Levy, Stuart S.
Registers
Coded record sensors
Particular sensor structure
235462, 235473, 250223B, 25022728, 25022729, G06K 710, G06K 701
Patent
active
050287699
ABSTRACT:
Apparatus for reading code elements which are relieved from a container. A source of light projects normally at the code elements while the container is rotated to sequentially illuminate each of the code elements. A sensor receives light which is reflected approximately normal to the surface of the container but avoids light which is reflected from the surface of each code element at an appreciable angle relative to the normal. The intensity of the reflections from regions of said container not containing a code element are relatively large compared to reflections received from portions of the container surface containing a code element and a threshold is set therebetween.
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Claypool Mark P.
Scott Paul F.
Shay Timothy W.
Weber Gary C.
Emhart Industries Inc.
Levy Stuart S.
Smith Spencer T.
Weinhardt Robert
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