VERFAHREN UND EINRICHTUNG ZUR ERZEUGUNG EINER BESTUECKUNGSORTSANZEIGE AUF EINER MIT BAUELEMENTEN ZU BESTUECKENDEN TRAEGERPLATTE

摘要

The mounting locations for separable components on a printed circuit board are indicated by a projected luminous spot which is moved sequentially and repeatedly between the several mounting spots for each component. The direction of movement of the luminous dot is changed in each mounting spot. The spot travels over the board in response to an element of the optical system in the projector being moved in a plane parallel to the board surface under control of a programmed unit.