Telecentric imaging system optical inspection machine using the

Details Telecentric imaging system optical inspection machine using the Telecentric imaging system optical inspection machine using the

1989-03-17

1991-04-16

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358107, 358225, 350415, H04N 718

Patent

active

050087436

ABSTRACT:
A telecentric imaging system includes a Fresnel lens mountable in proximity to an object to be imaged, a source of light for illuminating the object, and an aperture stop located at least in the telecentric imaging system is incorporated into an optical inspection machine which permits optical distortion produced by the telecentric imaging system to be corrected using a look-up table.

REFERENCES:
patent: 3637282 (1972-01-01), Hayamizu et al.
patent: 3761184 (1973-09-01), McLaughlin, Jr.
patent: 3994583 (1976-11-01), Hutchins, IV
patent: 4582393 (1986-04-01), Shieman
patent: 4695892 (1987-09-01), Mary
patent: 4851913 (1989-07-01), Fetzer et al.

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