| 摘要 |
<p>An optoelectronic yarn sensor assembly (S) for a yarn feeder (F), the assembly comprising a housing (H) with optical axes defining light channels (LC), a positioning socket (3) for a receiving/emitter component (D), (R) and a holding structure (4) for an optical lens (L), at least the inner light channel walls consisting of plastic or metallic material. An inwardly protruding annular light barrier (B1, B2) and/or outwardly recessed annular light trap (T) is provided in each light channel (LC) adjacent to the positioning socket (3) and adjacent to the holding structure (4). A channel section (5) of the light channel extends between opposite annular light barriers and/or light traps. The inner diameter of the channel section (5) is larger than the inner diameter of the respective annular light barrier and/or light trap.</p> |
