| 摘要 |
<p>The present invention provides an encoder device for optical detection of movement or position. The encoder device comprises a first terminal for delivery of an electric measurement code signal. The encoder device further comprises a first printed circuit board, a detector means mounted on the first printed circuit board and a code means provided with a pattern. The detector means and the code means being displaceable relative to each other, wherein said detector means is disposed to generate the electric measurement code signal in dependence on the relative displacement. The detector means includes at least one light-sensitive semiconductor chip having a first light-sensitive chip surface and a second chip surface on opposing sides. The first light-sensitive chip surface has a first chip contact area for electrical connection. The encoder device further comprises a second printed circuit board positioned between the detector means and the code means, wherein the second printed circuit board is shaped so as to allow the passage of light from the code means to the first light-sensitive chip surface. The second printed circuit board has a first PCB contact area connected to the terminal; wherein the first PCB contact area is connected to the first chip contact area by solder, electrically conducting glue or by ohmic contact.</p> |
