Parts recognition method and apparatus therefor

Details Parts recognition method and apparatus therefor Parts recognition method and apparatus therefor

1988-03-25

1989-08-15

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250237R, 358101, 358225, H01J 4014

Patent

active

048577529

ABSTRACT:
A part such as electronic parts is irradiated by diffused light and a silhouette of the parts is sensed by an image sensor, and plural optical systems are placed between the parts and the image sensor, and thereby the silhouette of the parts is divided into plural portions, moreover a shutter having plural openings is provided between the image sensor and the optical system to select one of the plural optical systems; thus one of respective silhouettes of the plural portions is sensed by the image sensor, and the portions are sensed in turn by shifting the shutter.

REFERENCES:
patent: 3475611 (1969-10-01), Kitchener
patent: 4081673 (1978-03-01), Swindell
patent: 4450579 (1984-05-01), Nakashima et al.

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