Camera for visual inspection

Details Camera for visual inspection Camera for visual inspection

1985-09-17

1987-05-12

Wan, Gene

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

250563, G01N 104, G01N 2188

Patent

active

046645209

ABSTRACT:
A camera for visual inspection of defect on an object having a complicated shape is disclosed. This camera is provided with a reflecting mirror having two symmetrical reflecting surfaces to split incident light into two portions and direct them onto two linear image sensing devices mounted on inner surface of the camera body at separate positions. The received lights are converted into electric signals and after processing to obtain a difference signal, a signal indicating presence of a defect is obtained remarkably.

REFERENCES:
C. B. Haehner, Inspection System for Round Objects Western Electric Tech. Digest 6, Apr. 1967, pp. 29-30.

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