| 摘要 |
<p>PCT No. PCT/EP89/00676 Sec. 371 Date Feb. 1, 1991 Sec. 102(e) Date Feb. 1, 1991 PCT Filed Jun. 15, 1989 PCT Pub. No. WO90/01862 PCT Pub. Date Feb. 22, 1990.A projection head for a light point on an assembly surface of an assembly table for indicating the outfitting location comprises a carrier part, an approximately punctiform light source, a holder for the point light source, which holder is arranged at the carrier part, as well as imaging optics which are arranged at the carrier part and comprise at least one optical element, which is arranged at the carrier part so as to be movable, for shifting the light point, as desired, on the assembly surface. In order to obtain a sharp-edged light point imaging on the entire assembly surface in a simple construction, it is provided that the imaging optics comprise an imaging lens or lens group which is arranged at the carrier part in a stationary manner, wherein the optical element, of which there is at least one, is supported at the carrier part so as to be swivelable, and wherein the light source holder, including the point light source, is further constructed in such a way that it can be deflected relative to the carrier part in the direction of the optical axis as a function of the respective swivel angle of the optical element, of which there is at least one.</p> |
