| 摘要 |
#CMT# #/CMT# The device has an acquisition device (53) e.g. camera, for capturing an image set of an extraction opening (110) of an ophthalmic lens (100) along a lighting direction (D51, A52) or capturing an image (A53). A processing system (54) processes the image when the lens is carried by a support (55), and determines a center position of a mouth of the opening from the image set of the opening and/or transversal dimension of the mouth of the opening corresponding to a required transversal dimension, where the mouth emerges on front surface (98) of the lens. #CMT#USE : #/CMT# Device for determining a position and/or a transversal dimension of an extraction opening of an ophthalmic lens of spectacles with a rimless frame. #CMT#ADVANTAGE : #/CMT# The device determines the central position and/or transversal dimension of the extraction opening of the ophthalmic lens of the spectacles in a precise manner. The processing unit determines the center position of the mouth of the opening from the image set of the opening and/or transversal dimension of the mouth of the opening corresponding to the required transversal dimension to correctly position the drill with respect to the central position of the center of the mouth to dimension and control the drill to obtain a hole whose transverse dimension precisely corresponds to the extraction opening of the lens, thus allowing the extraction opening to be correctly positioned and dimensioned. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic axial sectional view of an acquisition device of a device for determining a position and/or a transversal dimension of an extraction opening of an ophthalmic lens of spectacles with a rimless frame. A53 : Image D51, A52 : Lighting direction 53 : Acquisition device 54 : Processing system 55 : Support 98 : Front surface 100 : Ophthalmic lens 110 : Extraction opening. |
