초록 ▼

A shape detecting apparatus comprises a slit projecting means for projecting a slit image on a three-dimensional object such as a soldered area, a positioning means for positioning the three-dimensional object relative to the slit projecting means, an image pickup means for two-dimensionally scannin

A shape detecting apparatus comprises a slit projecting means for projecting a slit image on a three-dimensional object such as a soldered area, a positioning means for positioning the three-dimensional object relative to the slit projecting means, an image pickup means for two-dimensionally scanning the slit image projected by the slit projecting means to pickup the image, a light segment extracting circuit including a center position extracting means for extracting a mean position (Z1+Z2)/2 of two position signals Z1 and Z2 at which a video signal derived by transversely scanning the slit image by the image pickup means corresponds, to a first higher reference V1 when the video signal exceeds the first higher reference V1, a maximum value position extracting circuit for extracting a position Z corresponding to a maximum value of the video signal when the maximum value of the video signal is no higher than the first higher reference V1 and exceeds a second lower reference V2 and an erasing means for erasing the position signal when the maximum value of the video signal is no higher than the second lower reference V2, and a detecting means for detecting undersoldered condition and oversoldered condition by analyzing and evaluating the three-dimensional object based on the light segment position information derived from the light segment extracting circuit.

대표청구항 ▼

A shape detecting apparatus comprising: (a) a slit projecting means for projecting a slit image on a three-dimensional object; (b) a positioning means for positioning said three-dimensional object relative to said slit projecting means; (c) an image pickup means for two-dimensionally scanning the sl

A shape detecting apparatus comprising: (a) a slit projecting means for projecting a slit image on a three-dimensional object; (b) a positioning means for positioning said three-dimensional object relative to said slit projecting means; (c) an image pickup means for two-dimensionally scanning the slit image projected by said slit projecting means to pickup the image; (d) a light segment extracting circuit including a center position extracting means for extracting a mean position (Z1+Z2)/2 of two position signals Z1 and Z2 at which a video signal derived by transversely scanning said slit image by said image pickup means corresponds to or approximates to a first higher reference V1 when a maximum value of said video signal exceeds said first higher reference V1, a maximum value position extracting means for extracting a position Z corresponding to the maximum value of said video signal when the maximum value of said video signal is no higher than said first higher reference V1 and exceeds a second lower reference V2, and an erasing means for erasing the position signal of said video signal when the maximum value of said video signal is no higher than said second lower reference V2; and (e) a detecting means for detecting a shape of said three-dimensional object by analyzing the light segment position information derived from said light segment extracting circuit.