Method for automated testing of the modulation transfer...

Details Method for automated testing of the modulation transfer... Method for automated testing of the modulation transfer...

2007-05-08

2007-05-08

Lee, Michael H. (Department: 2622)

Television

Monitoring, testing, or measuring

Testing of camera

C348S241000

Reexamination Certificate

active

10663709

ABSTRACT:
A method for automatically measuring the modulation transfer function of an imager is disclosed. A opaque mask is placed over selected columns and rows of the imager during fabrication. In the course of an automated process, photons are uniformly shone over the image sensor. The amount of the input signal that flows from the unmasked pixel cells to the masked pixel cells can then be measured and the modulation transfer function can be determined.

REFERENCES:
patent: 5471515 (1995-11-01), Fossum et al.
patent: 5621519 (1997-04-01), Frost et al.
patent: 5651076 (1997-07-01), Blanc et al.
patent: 5708263 (1998-01-01), Wong
patent: 5818572 (1998-10-01), Pappas et al.
patent: 6900884 (2005-05-01), Alderson et al.

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