Transmission and reception unit on a transparent circuit board for a rotative encoder
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United States of America Patent
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Nov 8, 2016
Grant Date -
Feb 6, 2014
app pub date -
Jul 26, 2013
filing date -
Jul 31, 2012
priority date (Note) -
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Abstract
The invention relates to a transmission and reception unit for the detection of a rotary angle, having a light transmitter for the transmission of transmitted light to a dimensional scale and having a light receiver which lies on a support, the light receiver having a front side for the reception of reception light influenced by a dimensional scale disposed opposite the front side and having a rear side which is supported on a support transparent for the transmitted light. In order to provide a new assembly concept for the positioning of the light source and of the receiver and in particular to provide an arrangement which is as symmetrical as possible it is suggested that the transparent support is arranged between the light receiver and the light transmitter and that a light deflection apparatus is provided for the deflection of the transmitted light.
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