Apparatus for measuring leads of electrical component and method

Details Apparatus for measuring leads of electrical component and method Apparatus for measuring leads of electrical component and method

1990-11-06

1992-05-19

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

356446, G01N 2188

Patent

active

051142295

ABSTRACT:
An apparatus for measuring deviations of positions of leads of an electrical component comprises a light emitting unit for radiating a laser light from below toward the leads projecting from a molding of the electrical component sucked to a nozzle of a pick and place head. First and second photodetectors are disposed at both sides of the light emitting unit for detecting laser lights reflected at the leads, so as to enable to effect the measurement rapidly and accurately.

REFERENCES:
patent: 4092068 (1978-05-01), Lucas et al.
patent: 4988206 (1991-01-01), Melleney et al.

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