| 摘要 |
<p>The structure has a cover (4) assembled on a support board (2) e.g. printed circuit board, and comprising an opening (8) facing an optical sensor (1). A frame has rings (20, 32, 33) mobile in translation with respect to each other by an electric motor (36). The ring (20) has a conical internal surface (21) mating with a conical external surface (6) of the cover to position the ring (20) and to make connection blades of a fixed portion of the motor in resilient contact with pads on the board. The rings (32, 33) support an objective (31) and a shiftable portion of the motor.</p> |
