초록 ▼

An apparatus for inspecting a container includes a first light source for generating light energy of a first character and directing the light energy onto a predetermined portion of a container under inspection, and a second light source for generating light energy of a second character different fr

An apparatus for inspecting a container includes a first light source for generating light energy of a first character and directing the light energy onto a predetermined portion of a container under inspection, and a second light source for generating light energy of a second character different from the first character and directing such light energy onto the same predetermined portion of the container under inspection. An area array light sensor is disposed to receive a two-dimensional image of the portion of the container illuminated by the first and second light sources. The first and second light sources are sequentially and alternately strobed, and first and second two-dimensional images of the container portion under inspection are downloaded from the sensor. Commercial variations that affect optical properties of the containers are identified by comparing the first and second two-dimensional images from the respective light sources scanned from the sensor. The sensor preferably includes facility for scanning two-dimensional images in sequential frames, and the first and second images are obtained by scanning sequential frames from the sensor during which the first and second light sources are alternately strobed.

대표청구항 ▼

[ What is claimed is:] [1.] A method of inspecting a container for variations that affect commercial acceptability of the container, comprising the steps of:(a) alternately directing first and second light energies of different character into a portion of the container,(b) obtaining first and second

[ What is claimed is:] [1.] A method of inspecting a container for variations that affect commercial acceptability of the container, comprising the steps of:(a) alternately directing first and second light energies of different character into a portion of the container,(b) obtaining first and second two-dimensional images of the portion of the container illuminated in said step (a) during illumination by said first and second light energies respectively, and(c) detecting commercial variations at the container that affect optical properties of the container by comparison of said first and second images to each other,wherein said step (b) comprises the steps of: (b1) directing said first and second light energies alternately into a single area array sensor to develop two-dimensional images of the illuminated portion of the container at said sensor, and (b2) scanning said two-dimensional images from said sensor, andwherein said step (c) comprises the step of overlapping said images.