Brinks Hofer Gilson & Lione
Scanning unit with a printed circuit for an optical position-measuring apparatus
 A scanning unit for an optical position-measuring apparatus with a flexible printed circuit that electrically couples several electronic components. Among the components is at least one optoelectronic detector element or a radiation source that is suitable for the generation of shift-dependent modulated optical scanning signals from the scanning of a scale graduation structure. The radiation-sensitive detector face or the light-emitting face of the radiation source is oriented in the direction towards the flexible printed circuit. The flexible printed circuit has at least partially transparent recesses at least in a partial area of the radiation-sensitive detector face or the light-emitting face of the radiation source, a scanning graduation or transmitting graduation is disposed that in cooperation with the scale graduation structure makes possible the generation of position-dependent modulated scanning signals. 
Johannes Heidenhain GmbH
H G H
H05K G01D H05K
additional inventional additional
Volker Hermann Herbert Wolfgang Rainer
Hofer Hofbauer Pronold Holzapfel Hagl