초록 ▼

The invention relates to a bottle inspection apparatus wherein an image of an area, such as the base, of the bottle to be inspected is projected on to an integrated circuit device comprising an array of photodiodes arranged in a plurality of rows in combination with means to interrogate each diode i

The invention relates to a bottle inspection apparatus wherein an image of an area, such as the base, of the bottle to be inspected is projected on to an integrated circuit device comprising an array of photodiodes arranged in a plurality of rows in combination with means to interrogate each diode in turn, along each row in turn, to provide a video signal comprising a sequence of electrical signals corresponding to the light energy each diode has received, and wherein the video signal is differentiated and means are provided for gating-out unwanted signals outside the area of the bottle to be inspected whereby to generate a differentiated video output signal representative of dirt or foreign bodies in the bottle.

대표청구항 ▼

A bottle inspection apparatus for detecting dirt or foreign bodies in transparent bottles while being conveyed to bottle filling apparatus, comprising means for moving bottles to be inspected past inspection means, said inspection means comprising a source of illumination, diffuser means between sai

A bottle inspection apparatus for detecting dirt or foreign bodies in transparent bottles while being conveyed to bottle filling apparatus, comprising means for moving bottles to be inspected past inspection means, said inspection means comprising a source of illumination, diffuser means between said source and a bottle being inspected whereby diffusely to illuminate an area of the bottle to be inspected, means for projecting an image of said area on to an integrated circuit device comprising an array of photodiodes arranged in a plurality of rows with a plurality of diodes in each row in combination with array scanner means cyclically to scan the array and interrogate each diode in turn, along each row in turn, to provide a video signal comprising a sequence of electrical signals corresponding to the light energy each diode has received, means synchronised with said array scanner to generate gating pulses of the desired length for each row, and means feeding said video signal to electric circuit means including means for differentiating said video signal and gate means controlled by said gating pulses for gating-out unwanted signals outside the said area of the bottle to be inspected whereby to generate differentiated signal pulses representative of dirt or foreign bodies in the bottles.