Imaging sensor system with staggered arrangement of imaging...

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit

Reexamination Certificate

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C348S315000, C348S340000

Reexamination Certificate

active

07807951

ABSTRACT:
An imaging sensor system includes an optics system that images a point feature of a scene at an image plane with a blur-circle image having a blur diameter, and a detector array at the image plane. Special array patterns and signal detector logic are used to improve the accuracy of the determination of the object location. In one form, the detector array is a one-dimensional detector array comprising a plurality of detector subelements each having a width of from about ½ to about 5 blur diameters, and a length of n blur diameters. Each detector subelement overlaps each of two adjacent detector subelements along their lengths. An overlap of each of the two adjacent detector subelements is m blur diameters, and a center-to-center spacing of each of the two adjacent detector subelements is nOblur diameters. The value of n is equal to about 3m, and the value of m is equal to about nO/2. In another form, the detector is a two-dimensional detector array of detector subelements. The detector subelements are sized and staggered such that an area of the blur-circle image may not simultaneously be split equally among four detector subelements.

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