| 摘要 |
Process for plotting the shape of a contour (5, 6) of a previously machined ophthalmic lens (1), which comprises the operations consisting of: illuminating an optical face (2, 3) of the lens (1) by means of a flat light beam (15) to form a linear light spot (16) on this face (2, 3), such that the beam (15) extends beyond said face (2, 3) and illuminates said contour (5, 6); forming on the optical reception means (18) an image of said light spot (16); rotating the lens (1) about an axis (A); scanning the contour (5, 6) by means of the light beam (15); plotting concomitantly on the optical reception means (18) the successive positions of at least one single point of this image corresponding to the illuminated point of said contour (5, 6); deducing the shape of said contour (5, 6).
|
